/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.14.i.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-7968f31 [2022-03-17 19:01:07,233 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-17 19:01:07,234 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-17 19:01:07,272 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-17 19:01:07,272 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-17 19:01:07,273 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-17 19:01:07,275 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-17 19:01:07,279 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-17 19:01:07,281 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-17 19:01:07,284 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-17 19:01:07,284 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-17 19:01:07,285 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-17 19:01:07,285 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-17 19:01:07,286 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-17 19:01:07,286 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-17 19:01:07,287 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-17 19:01:07,287 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-17 19:01:07,288 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-17 19:01:07,288 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-17 19:01:07,289 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-17 19:01:07,290 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-03-17 19:01:07,293 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-17 19:01:07,295 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-17 19:01:07,297 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-17 19:01:07,298 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-17 19:01:07,304 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-03-17 19:01:07,305 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-03-17 19:01:07,305 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-03-17 19:01:07,305 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-03-17 19:01:07,305 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-03-17 19:01:07,306 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-03-17 19:01:07,306 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-03-17 19:01:07,307 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-03-17 19:01:07,307 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-03-17 19:01:07,307 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-03-17 19:01:07,308 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-03-17 19:01:07,308 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-03-17 19:01:07,309 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-03-17 19:01:07,309 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-03-17 19:01:07,309 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-17 19:01:07,309 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-17 19:01:07,312 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-17 19:01:07,313 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2022-03-17 19:01:07,322 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-17 19:01:07,322 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-17 19:01:07,324 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-17 19:01:07,324 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-17 19:01:07,324 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-17 19:01:07,324 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-17 19:01:07,324 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-17 19:01:07,324 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-17 19:01:07,324 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-17 19:01:07,325 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-17 19:01:07,325 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-17 19:01:07,325 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-17 19:01:07,325 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-17 19:01:07,325 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-17 19:01:07,325 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-17 19:01:07,326 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-17 19:01:07,326 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-17 19:01:07,326 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-17 19:01:07,326 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-17 19:01:07,326 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-17 19:01:07,326 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-17 19:01:07,327 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-03-17 19:01:07,327 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-03-17 19:01:07,467 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-17 19:01:07,496 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-17 19:01:07,498 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-17 19:01:07,499 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-17 19:01:07,500 INFO L275 PluginConnector]: CDTParser initialized [2022-03-17 19:01:07,501 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl/s3_srvr.blast.14.i.cil-2.c [2022-03-17 19:01:07,541 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f6b28660/ffd6fc1e79b843f49b74f612b2989d97/FLAG4899fce54 [2022-03-17 19:01:08,011 INFO L306 CDTParser]: Found 1 translation units. [2022-03-17 19:01:08,027 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.14.i.cil-2.c [2022-03-17 19:01:08,049 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f6b28660/ffd6fc1e79b843f49b74f612b2989d97/FLAG4899fce54 [2022-03-17 19:01:08,061 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f6b28660/ffd6fc1e79b843f49b74f612b2989d97 [2022-03-17 19:01:08,063 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-17 19:01:08,065 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-17 19:01:08,068 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-17 19:01:08,068 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-17 19:01:08,071 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-17 19:01:08,071 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 07:01:08" (1/1) ... [2022-03-17 19:01:08,072 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75160f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:01:08, skipping insertion in model container [2022-03-17 19:01:08,072 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 07:01:08" (1/1) ... [2022-03-17 19:01:08,077 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-17 19:01:08,154 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-17 19:01:08,392 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.14.i.cil-2.c[76259,76272] [2022-03-17 19:01:08,398 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-17 19:01:08,405 INFO L203 MainTranslator]: Completed pre-run [2022-03-17 19:01:08,468 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.14.i.cil-2.c[76259,76272] [2022-03-17 19:01:08,471 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-17 19:01:08,481 INFO L208 MainTranslator]: Completed translation [2022-03-17 19:01:08,481 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:01:08 WrapperNode [2022-03-17 19:01:08,481 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-17 19:01:08,482 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-17 19:01:08,482 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-17 19:01:08,482 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-17 19:01:08,489 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:01:08" (1/1) ... [2022-03-17 19:01:08,489 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:01:08" (1/1) ... [2022-03-17 19:01:08,501 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:01:08" (1/1) ... [2022-03-17 19:01:08,501 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:01:08" (1/1) ... [2022-03-17 19:01:08,532 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:01:08" (1/1) ... [2022-03-17 19:01:08,539 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:01:08" (1/1) ... [2022-03-17 19:01:08,542 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:01:08" (1/1) ... [2022-03-17 19:01:08,545 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-17 19:01:08,546 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-17 19:01:08,546 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-17 19:01:08,546 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-17 19:01:08,547 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:01:08" (1/1) ... [2022-03-17 19:01:08,557 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-17 19:01:08,568 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-17 19:01:08,592 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) [2022-03-17 19:01:08,594 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 [2022-03-17 19:01:08,614 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-03-17 19:01:08,615 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-17 19:01:08,615 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-03-17 19:01:08,615 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_server_method [2022-03-17 19:01:08,615 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_server_method [2022-03-17 19:01:08,615 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-03-17 19:01:08,615 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-03-17 19:01:08,615 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-03-17 19:01:08,615 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-03-17 19:01:08,615 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-03-17 19:01:08,615 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-03-17 19:01:08,615 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-03-17 19:01:08,615 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-03-17 19:01:08,615 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-17 19:01:08,615 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-03-17 19:01:08,615 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-03-17 19:01:08,616 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-03-17 19:01:08,616 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-03-17 19:01:08,616 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-03-17 19:01:08,616 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-03-17 19:01:08,616 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_server_method [2022-03-17 19:01:08,616 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-03-17 19:01:08,616 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-03-17 19:01:08,616 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_server_method [2022-03-17 19:01:08,616 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-03-17 19:01:08,616 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-03-17 19:01:08,616 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-03-17 19:01:08,616 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-03-17 19:01:08,616 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-17 19:01:08,616 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-03-17 19:01:08,616 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-17 19:01:08,617 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-03-17 19:01:08,617 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-03-17 19:01:08,617 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-03-17 19:01:08,617 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-17 19:01:08,617 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-17 19:01:08,617 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-03-17 19:01:08,617 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-03-17 19:01:08,617 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-03-17 19:01:08,617 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-03-17 19:01:08,617 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-17 19:01:08,723 INFO L234 CfgBuilder]: Building ICFG [2022-03-17 19:01:08,724 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-17 19:01:09,354 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-17 19:01:09,773 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2022-03-17 19:01:09,774 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2022-03-17 19:01:09,788 INFO L275 CfgBuilder]: Performing block encoding [2022-03-17 19:01:09,793 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-17 19:01:09,793 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-03-17 19:01:09,794 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.03 07:01:09 BoogieIcfgContainer [2022-03-17 19:01:09,794 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-17 19:01:09,795 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-03-17 19:01:09,795 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-03-17 19:01:09,800 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-03-17 19:01:09,815 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.03 07:01:09" (1/1) ... [2022-03-17 19:01:09,870 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 17.03 07:01:09 BasicIcfg [2022-03-17 19:01:09,870 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-03-17 19:01:09,871 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-17 19:01:09,871 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-17 19:01:09,873 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-17 19:01:09,873 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.03 07:01:08" (1/4) ... [2022-03-17 19:01:09,874 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1016a98c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 07:01:09, skipping insertion in model container [2022-03-17 19:01:09,874 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:01:08" (2/4) ... [2022-03-17 19:01:09,874 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1016a98c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 07:01:09, skipping insertion in model container [2022-03-17 19:01:09,874 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.03 07:01:09" (3/4) ... [2022-03-17 19:01:09,874 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1016a98c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.03 07:01:09, skipping insertion in model container [2022-03-17 19:01:09,874 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 17.03 07:01:09" (4/4) ... [2022-03-17 19:01:09,875 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr.blast.14.i.cil-2.cJordan [2022-03-17 19:01:09,878 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2022-03-17 19:01:09,878 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-17 19:01:09,919 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-17 19:01:09,925 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 [2022-03-17 19:01:09,925 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-03-17 19:01:09,944 INFO L276 IsEmpty]: Start isEmpty. Operand has 163 states, 155 states have (on average 1.7161290322580645) internal successors, (266), 156 states have internal predecessors, (266), 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) [2022-03-17 19:01:09,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-03-17 19:01:09,954 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:01:09,954 INFO L500 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:01:09,955 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:01:09,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:01:09,959 INFO L85 PathProgramCache]: Analyzing trace with hash -1842589219, now seen corresponding path program 1 times [2022-03-17 19:01:09,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:01:09,965 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053816454] [2022-03-17 19:01:09,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:01:09,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:01:10,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:01:10,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:01:10,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:01:10,392 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 19:01:10,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:01:10,392 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1053816454] [2022-03-17 19:01:10,393 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1053816454] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:01:10,393 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:01:10,393 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:01:10,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718500132] [2022-03-17 19:01:10,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:01:10,397 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:01:10,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:01:10,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:01:10,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:01:10,416 INFO L87 Difference]: Start difference. First operand has 163 states, 155 states have (on average 1.7161290322580645) internal successors, (266), 156 states have internal predecessors, (266), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:01:12,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:01:12,272 INFO L93 Difference]: Finished difference Result 297 states and 497 transitions. [2022-03-17 19:01:12,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:01:12,274 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 49 [2022-03-17 19:01:12,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:01:12,282 INFO L225 Difference]: With dead ends: 297 [2022-03-17 19:01:12,282 INFO L226 Difference]: Without dead ends: 271 [2022-03-17 19:01:12,283 INFO L911 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 [2022-03-17 19:01:12,285 INFO L912 BasicCegarLoop]: 168 mSDtfsCounter, 164 mSDsluCounter, 325 mSDsCounter, 0 mSdLazyCounter, 546 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 493 SdHoareTripleChecker+Invalid, 609 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 546 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-03-17 19:01:12,285 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [164 Valid, 493 Invalid, 609 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 546 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-03-17 19:01:12,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2022-03-17 19:01:12,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 187. [2022-03-17 19:01:12,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 182 states have (on average 1.6153846153846154) internal successors, (294), 182 states have internal predecessors, (294), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:01:12,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 298 transitions. [2022-03-17 19:01:12,317 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 298 transitions. Word has length 49 [2022-03-17 19:01:12,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:01:12,317 INFO L478 AbstractCegarLoop]: Abstraction has 187 states and 298 transitions. [2022-03-17 19:01:12,317 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:01:12,318 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 298 transitions. [2022-03-17 19:01:12,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-03-17 19:01:12,319 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:01:12,319 INFO L500 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:01:12,320 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-17 19:01:12,320 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:01:12,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:01:12,320 INFO L85 PathProgramCache]: Analyzing trace with hash -1256262427, now seen corresponding path program 1 times [2022-03-17 19:01:12,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:01:12,320 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983197426] [2022-03-17 19:01:12,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:01:12,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:01:12,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:01:12,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:01:12,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:01:12,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 19:01:12,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:01:12,459 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1983197426] [2022-03-17 19:01:12,459 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1983197426] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:01:12,459 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:01:12,459 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:01:12,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529743370] [2022-03-17 19:01:12,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:01:12,461 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:01:12,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:01:12,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:01:12,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:01:12,461 INFO L87 Difference]: Start difference. First operand 187 states and 298 transitions. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:01:14,450 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:01:14,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:01:14,775 INFO L93 Difference]: Finished difference Result 215 states and 338 transitions. [2022-03-17 19:01:14,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:01:14,776 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 50 [2022-03-17 19:01:14,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:01:14,777 INFO L225 Difference]: With dead ends: 215 [2022-03-17 19:01:14,777 INFO L226 Difference]: Without dead ends: 215 [2022-03-17 19:01:14,777 INFO L911 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 [2022-03-17 19:01:14,778 INFO L912 BasicCegarLoop]: 196 mSDtfsCounter, 22 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 376 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 511 SdHoareTripleChecker+Invalid, 386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-17 19:01:14,779 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 511 Invalid, 386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 376 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-03-17 19:01:14,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2022-03-17 19:01:14,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 198. [2022-03-17 19:01:14,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 193 states have (on average 1.621761658031088) internal successors, (313), 193 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) [2022-03-17 19:01:14,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 317 transitions. [2022-03-17 19:01:14,787 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 317 transitions. Word has length 50 [2022-03-17 19:01:14,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:01:14,787 INFO L478 AbstractCegarLoop]: Abstraction has 198 states and 317 transitions. [2022-03-17 19:01:14,787 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:01:14,787 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 317 transitions. [2022-03-17 19:01:14,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-03-17 19:01:14,789 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:01:14,789 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:01:14,789 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-17 19:01:14,789 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:01:14,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:01:14,790 INFO L85 PathProgramCache]: Analyzing trace with hash 821038722, now seen corresponding path program 1 times [2022-03-17 19:01:14,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:01:14,790 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447491948] [2022-03-17 19:01:14,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:01:14,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:01:14,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:01:14,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:01:14,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:01:14,905 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 19:01:14,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:01:14,905 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447491948] [2022-03-17 19:01:14,905 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [447491948] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:01:14,905 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:01:14,905 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:01:14,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113559230] [2022-03-17 19:01:14,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:01:14,906 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:01:14,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:01:14,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:01:14,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:01:14,906 INFO L87 Difference]: Start difference. First operand 198 states and 317 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:01:18,332 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 [] [2022-03-17 19:01:18,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:01:18,962 INFO L93 Difference]: Finished difference Result 215 states and 337 transitions. [2022-03-17 19:01:18,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:01:18,963 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 63 [2022-03-17 19:01:18,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:01:18,964 INFO L225 Difference]: With dead ends: 215 [2022-03-17 19:01:18,964 INFO L226 Difference]: Without dead ends: 215 [2022-03-17 19:01:18,964 INFO L911 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 [2022-03-17 19:01:18,965 INFO L912 BasicCegarLoop]: 197 mSDtfsCounter, 24 mSDsluCounter, 316 mSDsCounter, 0 mSdLazyCounter, 373 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 513 SdHoareTripleChecker+Invalid, 384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 373 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-03-17 19:01:18,965 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 513 Invalid, 384 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 373 Invalid, 1 Unknown, 0 Unchecked, 4.0s Time] [2022-03-17 19:01:18,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2022-03-17 19:01:18,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 198. [2022-03-17 19:01:18,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 193 states have (on average 1.616580310880829) internal successors, (312), 193 states have internal predecessors, (312), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:01:18,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 316 transitions. [2022-03-17 19:01:18,976 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 316 transitions. Word has length 63 [2022-03-17 19:01:18,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:01:18,977 INFO L478 AbstractCegarLoop]: Abstraction has 198 states and 316 transitions. [2022-03-17 19:01:18,977 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:01:18,977 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 316 transitions. [2022-03-17 19:01:18,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-03-17 19:01:18,982 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:01:18,982 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:01:18,982 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-17 19:01:18,982 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:01:18,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:01:18,983 INFO L85 PathProgramCache]: Analyzing trace with hash -2114147329, now seen corresponding path program 1 times [2022-03-17 19:01:18,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:01:18,983 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417245719] [2022-03-17 19:01:18,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:01:18,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:01:19,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:01:19,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:01:19,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:01:19,159 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 19:01:19,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:01:19,160 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1417245719] [2022-03-17 19:01:19,161 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1417245719] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:01:19,161 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:01:19,161 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:01:19,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066563496] [2022-03-17 19:01:19,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:01:19,162 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:01:19,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:01:19,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:01:19,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:01:19,163 INFO L87 Difference]: Start difference. First operand 198 states and 316 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:01:22,136 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:01:24,161 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 [] [2022-03-17 19:01:24,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:01:24,491 INFO L93 Difference]: Finished difference Result 214 states and 335 transitions. [2022-03-17 19:01:24,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:01:24,492 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 64 [2022-03-17 19:01:24,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:01:24,493 INFO L225 Difference]: With dead ends: 214 [2022-03-17 19:01:24,493 INFO L226 Difference]: Without dead ends: 214 [2022-03-17 19:01:24,493 INFO L911 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 [2022-03-17 19:01:24,494 INFO L912 BasicCegarLoop]: 198 mSDtfsCounter, 28 mSDsluCounter, 317 mSDsCounter, 0 mSdLazyCounter, 371 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 515 SdHoareTripleChecker+Invalid, 381 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 371 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-03-17 19:01:24,494 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 515 Invalid, 381 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 371 Invalid, 1 Unknown, 0 Unchecked, 5.3s Time] [2022-03-17 19:01:24,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2022-03-17 19:01:24,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 198. [2022-03-17 19:01:24,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 193 states have (on average 1.61139896373057) internal successors, (311), 193 states have internal predecessors, (311), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:01:24,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 315 transitions. [2022-03-17 19:01:24,500 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 315 transitions. Word has length 64 [2022-03-17 19:01:24,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:01:24,501 INFO L478 AbstractCegarLoop]: Abstraction has 198 states and 315 transitions. [2022-03-17 19:01:24,501 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:01:24,501 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 315 transitions. [2022-03-17 19:01:24,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-03-17 19:01:24,501 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:01:24,502 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:01:24,502 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-17 19:01:24,502 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:01:24,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:01:24,502 INFO L85 PathProgramCache]: Analyzing trace with hash 826373151, now seen corresponding path program 1 times [2022-03-17 19:01:24,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:01:24,502 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455602997] [2022-03-17 19:01:24,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:01:24,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:01:24,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:01:24,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:01:24,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:01:24,635 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 19:01:24,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:01:24,635 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1455602997] [2022-03-17 19:01:24,635 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1455602997] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:01:24,635 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:01:24,635 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:01:24,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926050353] [2022-03-17 19:01:24,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:01:24,636 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:01:24,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:01:24,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:01:24,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:01:24,637 INFO L87 Difference]: Start difference. First operand 198 states and 315 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:01:26,339 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 [] [2022-03-17 19:01:28,164 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:01:29,845 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:01:31,774 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.93s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:01:32,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:01:32,231 INFO L93 Difference]: Finished difference Result 321 states and 506 transitions. [2022-03-17 19:01:32,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:01:32,232 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 64 [2022-03-17 19:01:32,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:01:32,233 INFO L225 Difference]: With dead ends: 321 [2022-03-17 19:01:32,233 INFO L226 Difference]: Without dead ends: 321 [2022-03-17 19:01:32,233 INFO L911 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 [2022-03-17 19:01:32,234 INFO L912 BasicCegarLoop]: 128 mSDtfsCounter, 159 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 488 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 374 SdHoareTripleChecker+Invalid, 552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 488 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2022-03-17 19:01:32,234 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 374 Invalid, 552 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 488 Invalid, 0 Unknown, 0 Unchecked, 7.6s Time] [2022-03-17 19:01:32,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2022-03-17 19:01:32,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 210. [2022-03-17 19:01:32,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 205 states have (on average 1.5951219512195123) internal successors, (327), 205 states have internal predecessors, (327), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:01:32,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 331 transitions. [2022-03-17 19:01:32,241 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 331 transitions. Word has length 64 [2022-03-17 19:01:32,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:01:32,241 INFO L478 AbstractCegarLoop]: Abstraction has 210 states and 331 transitions. [2022-03-17 19:01:32,241 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:01:32,242 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 331 transitions. [2022-03-17 19:01:32,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-03-17 19:01:32,242 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:01:32,242 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:01:32,242 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-17 19:01:32,242 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:01:32,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:01:32,243 INFO L85 PathProgramCache]: Analyzing trace with hash -230789025, now seen corresponding path program 1 times [2022-03-17 19:01:32,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:01:32,251 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477199915] [2022-03-17 19:01:32,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:01:32,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:01:32,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:01:32,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:01:32,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:01:32,371 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 19:01:32,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:01:32,371 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477199915] [2022-03-17 19:01:32,372 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [477199915] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:01:32,372 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:01:32,372 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:01:32,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394706639] [2022-03-17 19:01:32,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:01:32,373 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:01:32,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:01:32,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:01:32,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:01:32,374 INFO L87 Difference]: Start difference. First operand 210 states and 331 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:01:34,524 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:01:35,595 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:01:36,759 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:01:37,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:01:37,263 INFO L93 Difference]: Finished difference Result 321 states and 503 transitions. [2022-03-17 19:01:37,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:01:37,264 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 64 [2022-03-17 19:01:37,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:01:37,265 INFO L225 Difference]: With dead ends: 321 [2022-03-17 19:01:37,265 INFO L226 Difference]: Without dead ends: 321 [2022-03-17 19:01:37,266 INFO L911 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 [2022-03-17 19:01:37,266 INFO L912 BasicCegarLoop]: 128 mSDtfsCounter, 153 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 488 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 374 SdHoareTripleChecker+Invalid, 552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 488 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-03-17 19:01:37,266 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [153 Valid, 374 Invalid, 552 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 488 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2022-03-17 19:01:37,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2022-03-17 19:01:37,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 215. [2022-03-17 19:01:37,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 210 states have (on average 1.5904761904761904) internal successors, (334), 210 states have internal predecessors, (334), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:01:37,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 338 transitions. [2022-03-17 19:01:37,274 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 338 transitions. Word has length 64 [2022-03-17 19:01:37,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:01:37,274 INFO L478 AbstractCegarLoop]: Abstraction has 215 states and 338 transitions. [2022-03-17 19:01:37,274 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:01:37,274 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 338 transitions. [2022-03-17 19:01:37,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-03-17 19:01:37,284 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:01:37,284 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:01:37,284 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-17 19:01:37,285 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:01:37,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:01:37,285 INFO L85 PathProgramCache]: Analyzing trace with hash -1540051073, now seen corresponding path program 1 times [2022-03-17 19:01:37,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:01:37,285 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133467850] [2022-03-17 19:01:37,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:01:37,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:01:37,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:01:37,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:01:37,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:01:37,426 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 19:01:37,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:01:37,426 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2133467850] [2022-03-17 19:01:37,427 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2133467850] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:01:37,427 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:01:37,427 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:01:37,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053878094] [2022-03-17 19:01:37,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:01:37,428 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:01:37,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:01:37,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:01:37,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:01:37,429 INFO L87 Difference]: Start difference. First operand 215 states and 338 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:01:39,979 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:01:42,562 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:01:43,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:01:43,005 INFO L93 Difference]: Finished difference Result 320 states and 499 transitions. [2022-03-17 19:01:43,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:01:43,006 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 64 [2022-03-17 19:01:43,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:01:43,007 INFO L225 Difference]: With dead ends: 320 [2022-03-17 19:01:43,007 INFO L226 Difference]: Without dead ends: 320 [2022-03-17 19:01:43,007 INFO L911 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 [2022-03-17 19:01:43,008 INFO L912 BasicCegarLoop]: 129 mSDtfsCounter, 151 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 485 mSolverCounterSat, 63 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 376 SdHoareTripleChecker+Invalid, 549 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 485 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-03-17 19:01:43,008 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [151 Valid, 376 Invalid, 549 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 485 Invalid, 1 Unknown, 0 Unchecked, 5.6s Time] [2022-03-17 19:01:43,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2022-03-17 19:01:43,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 216. [2022-03-17 19:01:43,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 211 states have (on average 1.5781990521327014) internal successors, (333), 211 states have internal predecessors, (333), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:01:43,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 337 transitions. [2022-03-17 19:01:43,019 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 337 transitions. Word has length 64 [2022-03-17 19:01:43,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:01:43,020 INFO L478 AbstractCegarLoop]: Abstraction has 216 states and 337 transitions. [2022-03-17 19:01:43,020 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:01:43,020 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 337 transitions. [2022-03-17 19:01:43,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-03-17 19:01:43,020 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:01:43,021 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:01:43,021 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-03-17 19:01:43,021 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:01:43,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:01:43,021 INFO L85 PathProgramCache]: Analyzing trace with hash 1577451682, now seen corresponding path program 1 times [2022-03-17 19:01:43,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:01:43,021 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696341179] [2022-03-17 19:01:43,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:01:43,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:01:43,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:01:43,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:01:43,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:01:43,133 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 19:01:43,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:01:43,133 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696341179] [2022-03-17 19:01:43,133 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1696341179] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:01:43,133 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:01:43,133 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:01:43,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064965351] [2022-03-17 19:01:43,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:01:43,134 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:01:43,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:01:43,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:01:43,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:01:43,135 INFO L87 Difference]: Start difference. First operand 216 states and 337 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:01:45,687 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:01:47,708 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:01:49,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:01:49,094 INFO L93 Difference]: Finished difference Result 320 states and 496 transitions. [2022-03-17 19:01:49,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:01:49,094 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 65 [2022-03-17 19:01:49,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:01:49,095 INFO L225 Difference]: With dead ends: 320 [2022-03-17 19:01:49,095 INFO L226 Difference]: Without dead ends: 320 [2022-03-17 19:01:49,096 INFO L911 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 [2022-03-17 19:01:49,096 INFO L912 BasicCegarLoop]: 129 mSDtfsCounter, 155 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 484 mSolverCounterSat, 63 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 376 SdHoareTripleChecker+Invalid, 549 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 484 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-03-17 19:01:49,096 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [155 Valid, 376 Invalid, 549 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 484 Invalid, 2 Unknown, 0 Unchecked, 5.9s Time] [2022-03-17 19:01:49,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2022-03-17 19:01:49,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 216. [2022-03-17 19:01:49,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 211 states have (on average 1.5639810426540284) internal successors, (330), 211 states have internal predecessors, (330), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:01:49,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 334 transitions. [2022-03-17 19:01:49,101 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 334 transitions. Word has length 65 [2022-03-17 19:01:49,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:01:49,101 INFO L478 AbstractCegarLoop]: Abstraction has 216 states and 334 transitions. [2022-03-17 19:01:49,101 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:01:49,101 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 334 transitions. [2022-03-17 19:01:49,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-03-17 19:01:49,102 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:01:49,102 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:01:49,102 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-03-17 19:01:49,102 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:01:49,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:01:49,102 INFO L85 PathProgramCache]: Analyzing trace with hash -1615094397, now seen corresponding path program 1 times [2022-03-17 19:01:49,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:01:49,102 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346734703] [2022-03-17 19:01:49,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:01:49,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:01:49,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:01:49,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:01:49,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:01:49,181 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 19:01:49,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:01:49,181 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346734703] [2022-03-17 19:01:49,181 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1346734703] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:01:49,181 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:01:49,181 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:01:49,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845229929] [2022-03-17 19:01:49,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:01:49,181 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:01:49,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:01:49,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:01:49,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:01:49,182 INFO L87 Difference]: Start difference. First operand 216 states and 334 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:01:51,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:01:51,427 INFO L93 Difference]: Finished difference Result 229 states and 350 transitions. [2022-03-17 19:01:51,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:01:51,428 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 66 [2022-03-17 19:01:51,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:01:51,429 INFO L225 Difference]: With dead ends: 229 [2022-03-17 19:01:51,429 INFO L226 Difference]: Without dead ends: 229 [2022-03-17 19:01:51,429 INFO L911 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 [2022-03-17 19:01:51,430 INFO L912 BasicCegarLoop]: 201 mSDtfsCounter, 20 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 366 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 521 SdHoareTripleChecker+Invalid, 374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 366 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-03-17 19:01:51,430 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 521 Invalid, 374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 366 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-03-17 19:01:51,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2022-03-17 19:01:51,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 216. [2022-03-17 19:01:51,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 211 states have (on average 1.5592417061611374) internal successors, (329), 211 states have internal predecessors, (329), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:01:51,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 333 transitions. [2022-03-17 19:01:51,434 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 333 transitions. Word has length 66 [2022-03-17 19:01:51,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:01:51,434 INFO L478 AbstractCegarLoop]: Abstraction has 216 states and 333 transitions. [2022-03-17 19:01:51,434 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:01:51,434 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 333 transitions. [2022-03-17 19:01:51,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-03-17 19:01:51,435 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:01:51,435 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:01:51,435 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-03-17 19:01:51,435 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:01:51,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:01:51,435 INFO L85 PathProgramCache]: Analyzing trace with hash -181923963, now seen corresponding path program 1 times [2022-03-17 19:01:51,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:01:51,435 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566545203] [2022-03-17 19:01:51,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:01:51,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:01:51,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:01:51,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:01:51,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:01:51,576 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 19:01:51,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:01:51,576 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566545203] [2022-03-17 19:01:51,576 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1566545203] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:01:51,576 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:01:51,577 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:01:51,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807696414] [2022-03-17 19:01:51,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:01:51,577 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:01:51,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:01:51,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:01:51,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:01:51,578 INFO L87 Difference]: Start difference. First operand 216 states and 333 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) [2022-03-17 19:01:52,649 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:01:54,671 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:01:56,474 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 [] [2022-03-17 19:01:57,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:01:57,435 INFO L93 Difference]: Finished difference Result 219 states and 336 transitions. [2022-03-17 19:01:57,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:01:57,436 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 [2022-03-17 19:01:57,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:01:57,437 INFO L225 Difference]: With dead ends: 219 [2022-03-17 19:01:57,437 INFO L226 Difference]: Without dead ends: 219 [2022-03-17 19:01:57,437 INFO L911 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 [2022-03-17 19:01:57,437 INFO L912 BasicCegarLoop]: 208 mSDtfsCounter, 11 mSDsluCounter, 327 mSDsCounter, 0 mSdLazyCounter, 351 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 535 SdHoareTripleChecker+Invalid, 356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 351 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-03-17 19:01:57,437 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 535 Invalid, 356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 351 Invalid, 1 Unknown, 0 Unchecked, 5.8s Time] [2022-03-17 19:01:57,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2022-03-17 19:01:57,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 216. [2022-03-17 19:01:57,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 211 states have (on average 1.5545023696682465) internal successors, (328), 211 states have internal predecessors, (328), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:01:57,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 332 transitions. [2022-03-17 19:01:57,441 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 332 transitions. Word has length 67 [2022-03-17 19:01:57,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:01:57,441 INFO L478 AbstractCegarLoop]: Abstraction has 216 states and 332 transitions. [2022-03-17 19:01:57,441 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) [2022-03-17 19:01:57,441 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 332 transitions. [2022-03-17 19:01:57,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-03-17 19:01:57,442 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:01:57,442 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:01:57,442 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-03-17 19:01:57,442 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:01:57,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:01:57,442 INFO L85 PathProgramCache]: Analyzing trace with hash -524374476, now seen corresponding path program 1 times [2022-03-17 19:01:57,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:01:57,442 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382597857] [2022-03-17 19:01:57,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:01:57,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:01:57,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:01:57,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:01:57,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:01:57,579 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 19:01:57,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:01:57,579 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382597857] [2022-03-17 19:01:57,579 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1382597857] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:01:57,579 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:01:57,579 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:01:57,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492881238] [2022-03-17 19:01:57,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:01:57,580 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:01:57,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:01:57,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:01:57,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:01:57,580 INFO L87 Difference]: Start difference. First operand 216 states and 332 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) [2022-03-17 19:01:59,366 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:02:00,591 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:02:02,607 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:02:04,634 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 [] [2022-03-17 19:02:05,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:02:05,065 INFO L93 Difference]: Finished difference Result 320 states and 493 transitions. [2022-03-17 19:02:05,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:02:05,065 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 [2022-03-17 19:02:05,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:02:05,067 INFO L225 Difference]: With dead ends: 320 [2022-03-17 19:02:05,067 INFO L226 Difference]: Without dead ends: 320 [2022-03-17 19:02:05,067 INFO L911 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 [2022-03-17 19:02:05,067 INFO L912 BasicCegarLoop]: 138 mSDtfsCounter, 128 mSDsluCounter, 256 mSDsCounter, 0 mSdLazyCounter, 493 mSolverCounterSat, 61 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 394 SdHoareTripleChecker+Invalid, 556 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 493 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2022-03-17 19:02:05,067 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [128 Valid, 394 Invalid, 556 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 493 Invalid, 2 Unknown, 0 Unchecked, 7.5s Time] [2022-03-17 19:02:05,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2022-03-17 19:02:05,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 238. [2022-03-17 19:02:05,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 238 states, 233 states have (on average 1.592274678111588) internal successors, (371), 233 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) [2022-03-17 19:02:05,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 375 transitions. [2022-03-17 19:02:05,071 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 375 transitions. Word has length 67 [2022-03-17 19:02:05,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:02:05,071 INFO L478 AbstractCegarLoop]: Abstraction has 238 states and 375 transitions. [2022-03-17 19:02:05,072 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) [2022-03-17 19:02:05,072 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 375 transitions. [2022-03-17 19:02:05,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-03-17 19:02:05,072 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:02:05,072 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:02:05,072 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-03-17 19:02:05,073 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:02:05,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:02:05,073 INFO L85 PathProgramCache]: Analyzing trace with hash -268597879, now seen corresponding path program 1 times [2022-03-17 19:02:05,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:02:05,073 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630153083] [2022-03-17 19:02:05,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:02:05,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:02:05,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:02:05,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:02:05,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:02:05,154 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-03-17 19:02:05,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:02:05,154 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [630153083] [2022-03-17 19:02:05,154 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [630153083] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:02:05,154 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:02:05,155 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:02:05,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864985974] [2022-03-17 19:02:05,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:02:05,155 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:02:05,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:02:05,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:02:05,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:02:05,155 INFO L87 Difference]: Start difference. First operand 238 states and 375 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:02:06,212 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:02:08,226 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:02:10,745 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:02:11,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:02:11,078 INFO L93 Difference]: Finished difference Result 280 states and 435 transitions. [2022-03-17 19:02:11,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:02:11,078 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 95 [2022-03-17 19:02:11,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:02:11,079 INFO L225 Difference]: With dead ends: 280 [2022-03-17 19:02:11,079 INFO L226 Difference]: Without dead ends: 280 [2022-03-17 19:02:11,079 INFO L911 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 [2022-03-17 19:02:11,080 INFO L912 BasicCegarLoop]: 205 mSDtfsCounter, 30 mSDsluCounter, 330 mSDsCounter, 0 mSdLazyCounter, 404 mSolverCounterSat, 11 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 535 SdHoareTripleChecker+Invalid, 417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 404 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-03-17 19:02:11,080 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 535 Invalid, 417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 404 Invalid, 2 Unknown, 0 Unchecked, 5.9s Time] [2022-03-17 19:02:11,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2022-03-17 19:02:11,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 260. [2022-03-17 19:02:11,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 260 states, 255 states have (on average 1.588235294117647) internal successors, (405), 255 states have internal predecessors, (405), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:02:11,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 409 transitions. [2022-03-17 19:02:11,084 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 409 transitions. Word has length 95 [2022-03-17 19:02:11,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:02:11,084 INFO L478 AbstractCegarLoop]: Abstraction has 260 states and 409 transitions. [2022-03-17 19:02:11,084 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:02:11,084 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 409 transitions. [2022-03-17 19:02:11,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-03-17 19:02:11,085 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:02:11,085 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:02:11,085 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-03-17 19:02:11,085 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:02:11,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:02:11,085 INFO L85 PathProgramCache]: Analyzing trace with hash 664162408, now seen corresponding path program 1 times [2022-03-17 19:02:11,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:02:11,086 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111749338] [2022-03-17 19:02:11,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:02:11,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:02:11,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:02:11,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:02:11,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:02:11,185 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-03-17 19:02:11,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:02:11,186 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111749338] [2022-03-17 19:02:11,186 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1111749338] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:02:11,186 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:02:11,186 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:02:11,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446999425] [2022-03-17 19:02:11,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:02:11,186 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:02:11,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:02:11,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:02:11,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:02:11,187 INFO L87 Difference]: Start difference. First operand 260 states and 409 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:02:12,527 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:02:13,858 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:02:14,898 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:02:16,664 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:02:17,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:02:17,158 INFO L93 Difference]: Finished difference Result 380 states and 591 transitions. [2022-03-17 19:02:17,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:02:17,158 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 108 [2022-03-17 19:02:17,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:02:17,160 INFO L225 Difference]: With dead ends: 380 [2022-03-17 19:02:17,160 INFO L226 Difference]: Without dead ends: 380 [2022-03-17 19:02:17,160 INFO L911 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 [2022-03-17 19:02:17,160 INFO L912 BasicCegarLoop]: 258 mSDtfsCounter, 151 mSDsluCounter, 376 mSDsCounter, 0 mSdLazyCounter, 612 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 634 SdHoareTripleChecker+Invalid, 657 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 612 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-03-17 19:02:17,160 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [151 Valid, 634 Invalid, 657 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 612 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time] [2022-03-17 19:02:17,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2022-03-17 19:02:17,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 276. [2022-03-17 19:02:17,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 276 states, 271 states have (on average 1.5756457564575646) internal successors, (427), 271 states have internal predecessors, (427), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:02:17,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 431 transitions. [2022-03-17 19:02:17,165 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 431 transitions. Word has length 108 [2022-03-17 19:02:17,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:02:17,165 INFO L478 AbstractCegarLoop]: Abstraction has 276 states and 431 transitions. [2022-03-17 19:02:17,165 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:02:17,165 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 431 transitions. [2022-03-17 19:02:17,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-17 19:02:17,166 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:02:17,166 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:02:17,166 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-03-17 19:02:17,166 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:02:17,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:02:17,166 INFO L85 PathProgramCache]: Analyzing trace with hash 2013387619, now seen corresponding path program 1 times [2022-03-17 19:02:17,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:02:17,167 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262884365] [2022-03-17 19:02:17,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:02:17,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:02:17,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:02:17,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:02:17,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:02:17,251 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-03-17 19:02:17,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:02:17,251 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1262884365] [2022-03-17 19:02:17,251 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1262884365] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:02:17,251 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:02:17,251 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:02:17,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668007024] [2022-03-17 19:02:17,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:02:17,251 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:02:17,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:02:17,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:02:17,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:02:17,252 INFO L87 Difference]: Start difference. First operand 276 states and 431 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) [2022-03-17 19:02:20,767 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:02:21,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:02:21,205 INFO L93 Difference]: Finished difference Result 289 states and 446 transitions. [2022-03-17 19:02:21,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:02:21,205 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 109 [2022-03-17 19:02:21,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:02:21,207 INFO L225 Difference]: With dead ends: 289 [2022-03-17 19:02:21,207 INFO L226 Difference]: Without dead ends: 289 [2022-03-17 19:02:21,207 INFO L911 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 [2022-03-17 19:02:21,207 INFO L912 BasicCegarLoop]: 238 mSDtfsCounter, 20 mSDsluCounter, 362 mSDsCounter, 0 mSdLazyCounter, 407 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 600 SdHoareTripleChecker+Invalid, 417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 407 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-03-17 19:02:21,208 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 600 Invalid, 417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 407 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2022-03-17 19:02:21,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289 states. [2022-03-17 19:02:21,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 276. [2022-03-17 19:02:21,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 276 states, 271 states have (on average 1.5719557195571956) internal successors, (426), 271 states have internal predecessors, (426), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:02:21,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 430 transitions. [2022-03-17 19:02:21,213 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 430 transitions. Word has length 109 [2022-03-17 19:02:21,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:02:21,214 INFO L478 AbstractCegarLoop]: Abstraction has 276 states and 430 transitions. [2022-03-17 19:02:21,214 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) [2022-03-17 19:02:21,214 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 430 transitions. [2022-03-17 19:02:21,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-03-17 19:02:21,215 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:02:21,215 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:02:21,215 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-03-17 19:02:21,215 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:02:21,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:02:21,215 INFO L85 PathProgramCache]: Analyzing trace with hash 621269315, now seen corresponding path program 1 times [2022-03-17 19:02:21,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:02:21,216 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752673135] [2022-03-17 19:02:21,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:02:21,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:02:21,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:02:21,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:02:21,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:02:21,309 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-03-17 19:02:21,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:02:21,309 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752673135] [2022-03-17 19:02:21,309 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [752673135] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:02:21,309 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:02:21,309 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-17 19:02:21,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522892193] [2022-03-17 19:02:21,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:02:21,310 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-17 19:02:21,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:02:21,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-17 19:02:21,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-17 19:02:21,310 INFO L87 Difference]: Start difference. First operand 276 states and 430 transitions. Second operand has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 5 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:02:23,437 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:02:25,217 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:02:27,234 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:02:27,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:02:27,577 INFO L93 Difference]: Finished difference Result 285 states and 441 transitions. [2022-03-17 19:02:27,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-17 19:02:27,577 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 5 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 110 [2022-03-17 19:02:27,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:02:27,578 INFO L225 Difference]: With dead ends: 285 [2022-03-17 19:02:27,578 INFO L226 Difference]: Without dead ends: 285 [2022-03-17 19:02:27,578 INFO L911 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 [2022-03-17 19:02:27,579 INFO L912 BasicCegarLoop]: 213 mSDtfsCounter, 3 mSDsluCounter, 460 mSDsCounter, 0 mSdLazyCounter, 445 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 673 SdHoareTripleChecker+Invalid, 450 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 445 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-03-17 19:02:27,579 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 673 Invalid, 450 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 445 Invalid, 1 Unknown, 0 Unchecked, 6.3s Time] [2022-03-17 19:02:27,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2022-03-17 19:02:27,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 285. [2022-03-17 19:02:27,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 280 states have (on average 1.5607142857142857) internal successors, (437), 280 states have internal predecessors, (437), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:02:27,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 441 transitions. [2022-03-17 19:02:27,583 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 441 transitions. Word has length 110 [2022-03-17 19:02:27,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:02:27,583 INFO L478 AbstractCegarLoop]: Abstraction has 285 states and 441 transitions. [2022-03-17 19:02:27,583 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 5 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:02:27,583 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 441 transitions. [2022-03-17 19:02:27,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-03-17 19:02:27,584 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:02:27,584 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:02:27,584 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-03-17 19:02:27,584 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:02:27,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:02:27,584 INFO L85 PathProgramCache]: Analyzing trace with hash 1418030591, now seen corresponding path program 1 times [2022-03-17 19:02:27,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:02:27,584 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775766743] [2022-03-17 19:02:27,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:02:27,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:02:27,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:02:27,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:02:27,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:02:27,721 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-03-17 19:02:27,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:02:27,722 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1775766743] [2022-03-17 19:02:27,722 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1775766743] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:02:27,722 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:02:27,722 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:02:27,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893982190] [2022-03-17 19:02:27,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:02:27,722 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:02:27,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:02:27,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:02:27,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:02:27,723 INFO L87 Difference]: Start difference. First operand 285 states and 441 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:02:28,918 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:02:30,711 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:02:32,734 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:02:34,757 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:02:35,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:02:35,178 INFO L93 Difference]: Finished difference Result 376 states and 566 transitions. [2022-03-17 19:02:35,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:02:35,178 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 112 [2022-03-17 19:02:35,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:02:35,180 INFO L225 Difference]: With dead ends: 376 [2022-03-17 19:02:35,180 INFO L226 Difference]: Without dead ends: 376 [2022-03-17 19:02:35,180 INFO L911 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 [2022-03-17 19:02:35,180 INFO L912 BasicCegarLoop]: 138 mSDtfsCounter, 153 mSDsluCounter, 256 mSDsCounter, 0 mSdLazyCounter, 493 mSolverCounterSat, 61 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 394 SdHoareTripleChecker+Invalid, 556 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 493 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2022-03-17 19:02:35,180 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [153 Valid, 394 Invalid, 556 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 493 Invalid, 2 Unknown, 0 Unchecked, 7.4s Time] [2022-03-17 19:02:35,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 376 states. [2022-03-17 19:02:35,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 376 to 285. [2022-03-17 19:02:35,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 280 states have (on average 1.5464285714285715) internal successors, (433), 280 states have internal predecessors, (433), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:02:35,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 437 transitions. [2022-03-17 19:02:35,184 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 437 transitions. Word has length 112 [2022-03-17 19:02:35,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:02:35,185 INFO L478 AbstractCegarLoop]: Abstraction has 285 states and 437 transitions. [2022-03-17 19:02:35,185 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:02:35,185 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 437 transitions. [2022-03-17 19:02:35,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-03-17 19:02:35,185 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:02:35,185 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:02:35,186 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-03-17 19:02:35,186 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:02:35,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:02:35,186 INFO L85 PathProgramCache]: Analyzing trace with hash 1410842427, now seen corresponding path program 1 times [2022-03-17 19:02:35,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:02:35,186 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1732879986] [2022-03-17 19:02:35,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:02:35,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:02:35,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:02:35,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:02:35,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:02:35,269 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-03-17 19:02:35,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:02:35,269 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1732879986] [2022-03-17 19:02:35,269 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1732879986] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:02:35,269 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:02:35,269 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:02:35,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878375301] [2022-03-17 19:02:35,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:02:35,269 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:02:35,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:02:35,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:02:35,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:02:35,270 INFO L87 Difference]: Start difference. First operand 285 states and 437 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:02:37,073 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:02:38,369 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:02:40,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:02:40,196 INFO L93 Difference]: Finished difference Result 302 states and 458 transitions. [2022-03-17 19:02:40,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:02:40,196 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 113 [2022-03-17 19:02:40,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:02:40,197 INFO L225 Difference]: With dead ends: 302 [2022-03-17 19:02:40,197 INFO L226 Difference]: Without dead ends: 302 [2022-03-17 19:02:40,197 INFO L911 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 [2022-03-17 19:02:40,198 INFO L912 BasicCegarLoop]: 209 mSDtfsCounter, 33 mSDsluCounter, 332 mSDsCounter, 0 mSdLazyCounter, 399 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 541 SdHoareTripleChecker+Invalid, 409 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 399 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-03-17 19:02:40,198 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 541 Invalid, 409 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 399 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2022-03-17 19:02:40,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2022-03-17 19:02:40,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 285. [2022-03-17 19:02:40,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 280 states have (on average 1.542857142857143) internal successors, (432), 280 states have internal predecessors, (432), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:02:40,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 436 transitions. [2022-03-17 19:02:40,201 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 436 transitions. Word has length 113 [2022-03-17 19:02:40,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:02:40,202 INFO L478 AbstractCegarLoop]: Abstraction has 285 states and 436 transitions. [2022-03-17 19:02:40,202 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:02:40,202 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 436 transitions. [2022-03-17 19:02:40,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-17 19:02:40,202 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:02:40,202 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:02:40,203 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-03-17 19:02:40,203 INFO L403 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:02:40,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:02:40,203 INFO L85 PathProgramCache]: Analyzing trace with hash -1137654742, now seen corresponding path program 1 times [2022-03-17 19:02:40,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:02:40,203 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134745333] [2022-03-17 19:02:40,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:02:40,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:02:40,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:02:40,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:02:40,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:02:40,298 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-17 19:02:40,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:02:40,298 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [134745333] [2022-03-17 19:02:40,299 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [134745333] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:02:40,299 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:02:40,299 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:02:40,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732602975] [2022-03-17 19:02:40,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:02:40,299 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:02:40,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:02:40,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:02:40,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:02:40,300 INFO L87 Difference]: Start difference. First operand 285 states and 436 transitions. Second operand has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:02:42,956 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:02:44,981 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:02:46,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:02:46,184 INFO L93 Difference]: Finished difference Result 392 states and 595 transitions. [2022-03-17 19:02:46,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:02:46,184 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 117 [2022-03-17 19:02:46,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:02:46,185 INFO L225 Difference]: With dead ends: 392 [2022-03-17 19:02:46,186 INFO L226 Difference]: Without dead ends: 392 [2022-03-17 19:02:46,186 INFO L911 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 [2022-03-17 19:02:46,186 INFO L912 BasicCegarLoop]: 205 mSDtfsCounter, 94 mSDsluCounter, 330 mSDsCounter, 0 mSdLazyCounter, 533 mSolverCounterSat, 12 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 535 SdHoareTripleChecker+Invalid, 547 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 533 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-03-17 19:02:46,186 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [94 Valid, 535 Invalid, 547 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 533 Invalid, 2 Unknown, 0 Unchecked, 5.9s Time] [2022-03-17 19:02:46,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 392 states. [2022-03-17 19:02:46,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 392 to 319. [2022-03-17 19:02:46,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 319 states, 314 states have (on average 1.5477707006369428) internal successors, (486), 314 states have internal predecessors, (486), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:02:46,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 490 transitions. [2022-03-17 19:02:46,190 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 490 transitions. Word has length 117 [2022-03-17 19:02:46,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:02:46,191 INFO L478 AbstractCegarLoop]: Abstraction has 319 states and 490 transitions. [2022-03-17 19:02:46,191 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:02:46,191 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 490 transitions. [2022-03-17 19:02:46,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-17 19:02:46,191 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:02:46,191 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:02:46,192 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-03-17 19:02:46,192 INFO L403 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:02:46,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:02:46,192 INFO L85 PathProgramCache]: Analyzing trace with hash -1383967829, now seen corresponding path program 1 times [2022-03-17 19:02:46,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:02:46,192 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937495217] [2022-03-17 19:02:46,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:02:46,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:02:46,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:02:46,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:02:46,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:02:46,357 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-17 19:02:46,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:02:46,358 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937495217] [2022-03-17 19:02:46,358 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [937495217] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:02:46,358 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:02:46,358 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:02:46,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031564265] [2022-03-17 19:02:46,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:02:46,358 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:02:46,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:02:46,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:02:46,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:02:46,359 INFO L87 Difference]: Start difference. First operand 319 states and 490 transitions. Second operand has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:02:47,696 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:02:49,716 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:02:51,740 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 [] [2022-03-17 19:02:53,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:02:53,066 INFO L93 Difference]: Finished difference Result 486 states and 747 transitions. [2022-03-17 19:02:53,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:02:53,067 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 117 [2022-03-17 19:02:53,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:02:53,068 INFO L225 Difference]: With dead ends: 486 [2022-03-17 19:02:53,068 INFO L226 Difference]: Without dead ends: 486 [2022-03-17 19:02:53,068 INFO L911 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 [2022-03-17 19:02:53,069 INFO L912 BasicCegarLoop]: 144 mSDtfsCounter, 133 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 488 mSolverCounterSat, 47 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 406 SdHoareTripleChecker+Invalid, 537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 488 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2022-03-17 19:02:53,069 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [133 Valid, 406 Invalid, 537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 488 Invalid, 2 Unknown, 0 Unchecked, 6.7s Time] [2022-03-17 19:02:53,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 486 states. [2022-03-17 19:02:53,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 486 to 349. [2022-03-17 19:02:53,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 349 states, 344 states have (on average 1.558139534883721) internal successors, (536), 344 states have internal predecessors, (536), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:02:53,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 540 transitions. [2022-03-17 19:02:53,073 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 540 transitions. Word has length 117 [2022-03-17 19:02:53,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:02:53,073 INFO L478 AbstractCegarLoop]: Abstraction has 349 states and 540 transitions. [2022-03-17 19:02:53,073 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:02:53,074 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 540 transitions. [2022-03-17 19:02:53,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-03-17 19:02:53,074 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:02:53,074 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:02:53,074 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-03-17 19:02:53,074 INFO L403 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:02:53,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:02:53,076 INFO L85 PathProgramCache]: Analyzing trace with hash -1058943794, now seen corresponding path program 1 times [2022-03-17 19:02:53,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:02:53,076 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488509651] [2022-03-17 19:02:53,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:02:53,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:02:53,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:02:53,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:02:53,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:02:53,162 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2022-03-17 19:02:53,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:02:53,162 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488509651] [2022-03-17 19:02:53,162 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [488509651] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:02:53,162 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:02:53,162 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:02:53,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045789353] [2022-03-17 19:02:53,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:02:53,163 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:02:53,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:02:53,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:02:53,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:02:53,164 INFO L87 Difference]: Start difference. First operand 349 states and 540 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:02:55,141 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:02:55,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:02:55,550 INFO L93 Difference]: Finished difference Result 430 states and 651 transitions. [2022-03-17 19:02:55,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:02:55,550 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 122 [2022-03-17 19:02:55,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:02:55,551 INFO L225 Difference]: With dead ends: 430 [2022-03-17 19:02:55,551 INFO L226 Difference]: Without dead ends: 430 [2022-03-17 19:02:55,552 INFO L911 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 [2022-03-17 19:02:55,552 INFO L912 BasicCegarLoop]: 129 mSDtfsCounter, 155 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 376 SdHoareTripleChecker+Invalid, 545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-17 19:02:55,552 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [155 Valid, 376 Invalid, 545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 483 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-03-17 19:02:55,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 430 states. [2022-03-17 19:02:55,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 430 to 349. [2022-03-17 19:02:55,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 349 states, 344 states have (on average 1.5406976744186047) internal successors, (530), 344 states have internal predecessors, (530), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:02:55,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 534 transitions. [2022-03-17 19:02:55,557 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 534 transitions. Word has length 122 [2022-03-17 19:02:55,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:02:55,557 INFO L478 AbstractCegarLoop]: Abstraction has 349 states and 534 transitions. [2022-03-17 19:02:55,557 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:02:55,557 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 534 transitions. [2022-03-17 19:02:55,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-03-17 19:02:55,558 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:02:55,558 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:02:55,558 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-03-17 19:02:55,558 INFO L403 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:02:55,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:02:55,558 INFO L85 PathProgramCache]: Analyzing trace with hash 1303023360, now seen corresponding path program 1 times [2022-03-17 19:02:55,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:02:55,558 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166495992] [2022-03-17 19:02:55,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:02:55,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:02:55,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:02:55,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:02:55,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:02:55,655 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-17 19:02:55,655 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:02:55,655 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1166495992] [2022-03-17 19:02:55,655 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1166495992] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:02:55,655 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:02:55,655 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:02:55,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652610868] [2022-03-17 19:02:55,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:02:55,656 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:02:55,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:02:55,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:02:55,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:02:55,657 INFO L87 Difference]: Start difference. First operand 349 states and 534 transitions. Second operand has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:02:58,561 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:03:01,464 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:03:01,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:03:01,868 INFO L93 Difference]: Finished difference Result 446 states and 679 transitions. [2022-03-17 19:03:01,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:03:01,869 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 123 [2022-03-17 19:03:01,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:03:01,870 INFO L225 Difference]: With dead ends: 446 [2022-03-17 19:03:01,870 INFO L226 Difference]: Without dead ends: 446 [2022-03-17 19:03:01,870 INFO L911 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 [2022-03-17 19:03:01,871 INFO L912 BasicCegarLoop]: 194 mSDtfsCounter, 87 mSDsluCounter, 319 mSDsCounter, 0 mSdLazyCounter, 518 mSolverCounterSat, 11 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 513 SdHoareTripleChecker+Invalid, 531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 518 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-03-17 19:03:01,871 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [87 Valid, 513 Invalid, 531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 518 Invalid, 2 Unknown, 0 Unchecked, 6.2s Time] [2022-03-17 19:03:01,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 446 states. [2022-03-17 19:03:01,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 446 to 388. [2022-03-17 19:03:01,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 388 states, 383 states have (on average 1.5456919060052219) internal successors, (592), 383 states have internal predecessors, (592), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:03:01,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 388 states to 388 states and 596 transitions. [2022-03-17 19:03:01,875 INFO L78 Accepts]: Start accepts. Automaton has 388 states and 596 transitions. Word has length 123 [2022-03-17 19:03:01,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:03:01,875 INFO L478 AbstractCegarLoop]: Abstraction has 388 states and 596 transitions. [2022-03-17 19:03:01,875 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:03:01,876 INFO L276 IsEmpty]: Start isEmpty. Operand 388 states and 596 transitions. [2022-03-17 19:03:01,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-03-17 19:03:01,876 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:03:01,876 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:03:01,876 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-03-17 19:03:01,877 INFO L403 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:03:01,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:03:01,877 INFO L85 PathProgramCache]: Analyzing trace with hash -2124891711, now seen corresponding path program 1 times [2022-03-17 19:03:01,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:03:01,877 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [489935026] [2022-03-17 19:03:01,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:03:01,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:03:01,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:03:01,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:03:01,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:03:01,983 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-17 19:03:01,983 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:03:01,983 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [489935026] [2022-03-17 19:03:01,983 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [489935026] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:03:01,983 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:03:01,983 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:03:01,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679697355] [2022-03-17 19:03:01,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:03:01,984 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:03:01,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:03:01,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:03:01,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:03:01,984 INFO L87 Difference]: Start difference. First operand 388 states and 596 transitions. Second operand has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:03:03,280 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:03:05,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:03:05,149 INFO L93 Difference]: Finished difference Result 509 states and 776 transitions. [2022-03-17 19:03:05,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:03:05,149 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 123 [2022-03-17 19:03:05,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:03:05,151 INFO L225 Difference]: With dead ends: 509 [2022-03-17 19:03:05,151 INFO L226 Difference]: Without dead ends: 509 [2022-03-17 19:03:05,151 INFO L911 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 [2022-03-17 19:03:05,151 INFO L912 BasicCegarLoop]: 129 mSDtfsCounter, 128 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 484 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 376 SdHoareTripleChecker+Invalid, 543 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 484 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-03-17 19:03:05,151 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [128 Valid, 376 Invalid, 543 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 484 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-03-17 19:03:05,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 509 states. [2022-03-17 19:03:05,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 509 to 386. [2022-03-17 19:03:05,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 386 states, 381 states have (on average 1.5459317585301837) internal successors, (589), 381 states have internal predecessors, (589), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:03:05,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 593 transitions. [2022-03-17 19:03:05,156 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 593 transitions. Word has length 123 [2022-03-17 19:03:05,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:03:05,156 INFO L478 AbstractCegarLoop]: Abstraction has 386 states and 593 transitions. [2022-03-17 19:03:05,156 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:03:05,156 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 593 transitions. [2022-03-17 19:03:05,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-03-17 19:03:05,157 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:03:05,157 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:03:05,157 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-03-17 19:03:05,157 INFO L403 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:03:05,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:03:05,158 INFO L85 PathProgramCache]: Analyzing trace with hash -1648642121, now seen corresponding path program 1 times [2022-03-17 19:03:05,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:03:05,158 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243557341] [2022-03-17 19:03:05,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:03:05,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:03:05,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:03:05,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:03:05,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:03:05,246 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-17 19:03:05,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:03:05,246 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243557341] [2022-03-17 19:03:05,246 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [243557341] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:03:05,246 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:03:05,246 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:03:05,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472580477] [2022-03-17 19:03:05,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:03:05,246 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:03:05,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:03:05,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:03:05,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:03:05,247 INFO L87 Difference]: Start difference. First operand 386 states and 593 transitions. Second operand has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:03:07,730 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:03:08,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:03:08,613 INFO L93 Difference]: Finished difference Result 467 states and 708 transitions. [2022-03-17 19:03:08,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:03:08,614 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 124 [2022-03-17 19:03:08,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:03:08,615 INFO L225 Difference]: With dead ends: 467 [2022-03-17 19:03:08,615 INFO L226 Difference]: Without dead ends: 467 [2022-03-17 19:03:08,615 INFO L911 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 [2022-03-17 19:03:08,616 INFO L912 BasicCegarLoop]: 129 mSDtfsCounter, 127 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 376 SdHoareTripleChecker+Invalid, 544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-03-17 19:03:08,619 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [127 Valid, 376 Invalid, 544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 483 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-03-17 19:03:08,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 467 states. [2022-03-17 19:03:08,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 467 to 386. [2022-03-17 19:03:08,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 386 states, 381 states have (on average 1.5406824146981628) internal successors, (587), 381 states have internal predecessors, (587), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:03:08,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 591 transitions. [2022-03-17 19:03:08,624 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 591 transitions. Word has length 124 [2022-03-17 19:03:08,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:03:08,624 INFO L478 AbstractCegarLoop]: Abstraction has 386 states and 591 transitions. [2022-03-17 19:03:08,624 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:03:08,625 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 591 transitions. [2022-03-17 19:03:08,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-03-17 19:03:08,625 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:03:08,625 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:03:08,625 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-03-17 19:03:08,626 INFO L403 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:03:08,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:03:08,626 INFO L85 PathProgramCache]: Analyzing trace with hash 1831808920, now seen corresponding path program 1 times [2022-03-17 19:03:08,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:03:08,626 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612772383] [2022-03-17 19:03:08,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:03:08,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:03:08,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:03:08,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:03:08,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:03:08,739 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-17 19:03:08,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:03:08,740 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612772383] [2022-03-17 19:03:08,740 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [612772383] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:03:08,740 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:03:08,740 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:03:08,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769878917] [2022-03-17 19:03:08,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:03:08,741 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:03:08,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:03:08,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:03:08,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:03:08,742 INFO L87 Difference]: Start difference. First operand 386 states and 591 transitions. Second operand has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:03:11,470 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:03:13,493 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:03:14,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:03:14,417 INFO L93 Difference]: Finished difference Result 473 states and 719 transitions. [2022-03-17 19:03:14,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:03:14,417 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 131 [2022-03-17 19:03:14,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:03:14,418 INFO L225 Difference]: With dead ends: 473 [2022-03-17 19:03:14,418 INFO L226 Difference]: Without dead ends: 473 [2022-03-17 19:03:14,419 INFO L911 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 [2022-03-17 19:03:14,419 INFO L912 BasicCegarLoop]: 194 mSDtfsCounter, 68 mSDsluCounter, 319 mSDsCounter, 0 mSdLazyCounter, 505 mSolverCounterSat, 11 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 513 SdHoareTripleChecker+Invalid, 518 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 505 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-03-17 19:03:14,419 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [68 Valid, 513 Invalid, 518 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 505 Invalid, 2 Unknown, 0 Unchecked, 5.7s Time] [2022-03-17 19:03:14,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 473 states. [2022-03-17 19:03:14,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 473 to 429. [2022-03-17 19:03:14,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 429 states, 424 states have (on average 1.5400943396226414) internal successors, (653), 424 states have internal predecessors, (653), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:03:14,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 429 states and 657 transitions. [2022-03-17 19:03:14,424 INFO L78 Accepts]: Start accepts. Automaton has 429 states and 657 transitions. Word has length 131 [2022-03-17 19:03:14,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:03:14,424 INFO L478 AbstractCegarLoop]: Abstraction has 429 states and 657 transitions. [2022-03-17 19:03:14,424 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:03:14,424 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states and 657 transitions. [2022-03-17 19:03:14,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-03-17 19:03:14,425 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:03:14,425 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:03:14,425 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-03-17 19:03:14,425 INFO L403 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:03:14,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:03:14,425 INFO L85 PathProgramCache]: Analyzing trace with hash 346753369, now seen corresponding path program 1 times [2022-03-17 19:03:14,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:03:14,425 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520846033] [2022-03-17 19:03:14,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:03:14,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:03:14,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:03:14,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:03:14,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:03:14,517 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-03-17 19:03:14,517 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:03:14,517 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [520846033] [2022-03-17 19:03:14,518 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [520846033] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:03:14,518 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:03:14,518 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:03:14,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751773181] [2022-03-17 19:03:14,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:03:14,518 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:03:14,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:03:14,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:03:14,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:03:14,518 INFO L87 Difference]: Start difference. First operand 429 states and 657 transitions. Second operand has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:03:15,838 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:03:17,757 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:03:19,206 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:03:20,479 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:03:20,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:03:20,854 INFO L93 Difference]: Finished difference Result 475 states and 722 transitions. [2022-03-17 19:03:20,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:03:20,854 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 131 [2022-03-17 19:03:20,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:03:20,855 INFO L225 Difference]: With dead ends: 475 [2022-03-17 19:03:20,855 INFO L226 Difference]: Without dead ends: 475 [2022-03-17 19:03:20,856 INFO L911 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 [2022-03-17 19:03:20,856 INFO L912 BasicCegarLoop]: 254 mSDtfsCounter, 35 mSDsluCounter, 377 mSDsCounter, 0 mSdLazyCounter, 467 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 631 SdHoareTripleChecker+Invalid, 476 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 467 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-03-17 19:03:20,856 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [35 Valid, 631 Invalid, 476 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 467 Invalid, 0 Unknown, 0 Unchecked, 6.3s Time] [2022-03-17 19:03:20,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 475 states. [2022-03-17 19:03:20,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 475 to 453. [2022-03-17 19:03:20,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 453 states, 448 states have (on average 1.5357142857142858) internal successors, (688), 448 states have internal predecessors, (688), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:03:20,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 453 states to 453 states and 692 transitions. [2022-03-17 19:03:20,861 INFO L78 Accepts]: Start accepts. Automaton has 453 states and 692 transitions. Word has length 131 [2022-03-17 19:03:20,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:03:20,861 INFO L478 AbstractCegarLoop]: Abstraction has 453 states and 692 transitions. [2022-03-17 19:03:20,861 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:03:20,861 INFO L276 IsEmpty]: Start isEmpty. Operand 453 states and 692 transitions. [2022-03-17 19:03:20,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-03-17 19:03:20,862 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:03:20,862 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:03:20,862 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-03-17 19:03:20,862 INFO L403 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:03:20,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:03:20,862 INFO L85 PathProgramCache]: Analyzing trace with hash -353743273, now seen corresponding path program 1 times [2022-03-17 19:03:20,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:03:20,863 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942489454] [2022-03-17 19:03:20,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:03:20,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:03:20,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:03:20,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:03:20,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:03:20,951 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 134 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-17 19:03:20,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:03:20,951 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1942489454] [2022-03-17 19:03:20,951 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1942489454] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:03:20,951 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:03:20,951 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:03:20,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878964081] [2022-03-17 19:03:20,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:03:20,952 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:03:20,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:03:20,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:03:20,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:03:20,953 INFO L87 Difference]: Start difference. First operand 453 states and 692 transitions. Second operand has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:03:23,460 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:03:24,874 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:03:26,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:03:26,290 INFO L93 Difference]: Finished difference Result 574 states and 866 transitions. [2022-03-17 19:03:26,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:03:26,291 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 144 [2022-03-17 19:03:26,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:03:26,292 INFO L225 Difference]: With dead ends: 574 [2022-03-17 19:03:26,292 INFO L226 Difference]: Without dead ends: 574 [2022-03-17 19:03:26,292 INFO L911 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 [2022-03-17 19:03:26,293 INFO L912 BasicCegarLoop]: 139 mSDtfsCounter, 134 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 496 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 396 SdHoareTripleChecker+Invalid, 549 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 496 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-03-17 19:03:26,293 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [134 Valid, 396 Invalid, 549 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 496 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2022-03-17 19:03:26,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 574 states. [2022-03-17 19:03:26,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 574 to 483. [2022-03-17 19:03:26,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 483 states, 478 states have (on average 1.5271966527196652) internal successors, (730), 478 states have internal predecessors, (730), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:03:26,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 734 transitions. [2022-03-17 19:03:26,298 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 734 transitions. Word has length 144 [2022-03-17 19:03:26,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:03:26,298 INFO L478 AbstractCegarLoop]: Abstraction has 483 states and 734 transitions. [2022-03-17 19:03:26,298 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:03:26,298 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 734 transitions. [2022-03-17 19:03:26,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-03-17 19:03:26,301 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:03:26,301 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:03:26,301 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-03-17 19:03:26,301 INFO L403 AbstractCegarLoop]: === Iteration 27 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:03:26,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:03:26,301 INFO L85 PathProgramCache]: Analyzing trace with hash -649786349, now seen corresponding path program 1 times [2022-03-17 19:03:26,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:03:26,301 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676086292] [2022-03-17 19:03:26,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:03:26,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:03:26,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:03:26,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:03:26,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:03:26,433 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 136 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-17 19:03:26,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:03:26,434 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676086292] [2022-03-17 19:03:26,434 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1676086292] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:03:26,434 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:03:26,434 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:03:26,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431639599] [2022-03-17 19:03:26,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:03:26,434 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:03:26,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:03:26,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:03:26,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:03:26,435 INFO L87 Difference]: Start difference. First operand 483 states and 734 transitions. Second operand has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:03:28,806 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:03:30,040 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:03:31,800 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:03:32,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:03:32,195 INFO L93 Difference]: Finished difference Result 525 states and 793 transitions. [2022-03-17 19:03:32,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:03:32,196 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 145 [2022-03-17 19:03:32,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:03:32,197 INFO L225 Difference]: With dead ends: 525 [2022-03-17 19:03:32,197 INFO L226 Difference]: Without dead ends: 525 [2022-03-17 19:03:32,197 INFO L911 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 [2022-03-17 19:03:32,198 INFO L912 BasicCegarLoop]: 196 mSDtfsCounter, 75 mSDsluCounter, 321 mSDsCounter, 0 mSdLazyCounter, 502 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 517 SdHoareTripleChecker+Invalid, 514 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 502 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-03-17 19:03:32,198 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [75 Valid, 517 Invalid, 514 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 502 Invalid, 1 Unknown, 0 Unchecked, 5.7s Time] [2022-03-17 19:03:32,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 525 states. [2022-03-17 19:03:32,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 525 to 483. [2022-03-17 19:03:32,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 483 states, 478 states have (on average 1.5251046025104602) internal successors, (729), 478 states have internal predecessors, (729), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:03:32,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 733 transitions. [2022-03-17 19:03:32,202 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 733 transitions. Word has length 145 [2022-03-17 19:03:32,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:03:32,203 INFO L478 AbstractCegarLoop]: Abstraction has 483 states and 733 transitions. [2022-03-17 19:03:32,203 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:03:32,203 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 733 transitions. [2022-03-17 19:03:32,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-03-17 19:03:32,204 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:03:32,204 INFO L500 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:03:32,204 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-03-17 19:03:32,204 INFO L403 AbstractCegarLoop]: === Iteration 28 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:03:32,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:03:32,204 INFO L85 PathProgramCache]: Analyzing trace with hash 1698510247, now seen corresponding path program 1 times [2022-03-17 19:03:32,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:03:32,204 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145347312] [2022-03-17 19:03:32,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:03:32,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:03:32,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:03:32,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:03:32,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:03:32,293 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 122 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-03-17 19:03:32,294 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:03:32,294 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2145347312] [2022-03-17 19:03:32,294 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2145347312] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:03:32,294 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:03:32,294 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:03:32,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416216083] [2022-03-17 19:03:32,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:03:32,294 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:03:32,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:03:32,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:03:32,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:03:32,295 INFO L87 Difference]: Start difference. First operand 483 states and 733 transitions. Second operand has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:03:33,549 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:03:35,570 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:03:37,649 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:03:38,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:03:38,065 INFO L93 Difference]: Finished difference Result 554 states and 828 transitions. [2022-03-17 19:03:38,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:03:38,066 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 147 [2022-03-17 19:03:38,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:03:38,067 INFO L225 Difference]: With dead ends: 554 [2022-03-17 19:03:38,067 INFO L226 Difference]: Without dead ends: 554 [2022-03-17 19:03:38,067 INFO L911 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 [2022-03-17 19:03:38,068 INFO L912 BasicCegarLoop]: 149 mSDtfsCounter, 142 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 481 mSolverCounterSat, 52 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 416 SdHoareTripleChecker+Invalid, 534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 481 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-03-17 19:03:38,068 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [142 Valid, 416 Invalid, 534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 481 Invalid, 1 Unknown, 0 Unchecked, 5.8s Time] [2022-03-17 19:03:38,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 554 states. [2022-03-17 19:03:38,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 554 to 483. [2022-03-17 19:03:38,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 483 states, 478 states have (on average 1.506276150627615) internal successors, (720), 478 states have internal predecessors, (720), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:03:38,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 724 transitions. [2022-03-17 19:03:38,072 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 724 transitions. Word has length 147 [2022-03-17 19:03:38,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:03:38,073 INFO L478 AbstractCegarLoop]: Abstraction has 483 states and 724 transitions. [2022-03-17 19:03:38,073 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:03:38,073 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 724 transitions. [2022-03-17 19:03:38,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-03-17 19:03:38,074 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:03:38,074 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:03:38,074 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-03-17 19:03:38,074 INFO L403 AbstractCegarLoop]: === Iteration 29 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:03:38,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:03:38,074 INFO L85 PathProgramCache]: Analyzing trace with hash 1339728551, now seen corresponding path program 1 times [2022-03-17 19:03:38,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:03:38,074 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511164148] [2022-03-17 19:03:38,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:03:38,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:03:38,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:03:38,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:03:38,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:03:38,166 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 130 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-17 19:03:38,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:03:38,166 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1511164148] [2022-03-17 19:03:38,166 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1511164148] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:03:38,166 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:03:38,166 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:03:38,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538120113] [2022-03-17 19:03:38,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:03:38,167 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:03:38,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:03:38,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:03:38,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:03:38,168 INFO L87 Difference]: Start difference. First operand 483 states and 724 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) [2022-03-17 19:03:39,320 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:03:40,349 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:03:41,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:03:41,770 INFO L93 Difference]: Finished difference Result 515 states and 770 transitions. [2022-03-17 19:03:41,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:03:41,770 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 148 [2022-03-17 19:03:41,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:03:41,772 INFO L225 Difference]: With dead ends: 515 [2022-03-17 19:03:41,772 INFO L226 Difference]: Without dead ends: 515 [2022-03-17 19:03:41,772 INFO L911 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 [2022-03-17 19:03:41,772 INFO L912 BasicCegarLoop]: 203 mSDtfsCounter, 69 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 489 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 531 SdHoareTripleChecker+Invalid, 496 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 489 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-03-17 19:03:41,772 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [69 Valid, 531 Invalid, 496 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 489 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-03-17 19:03:41,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 515 states. [2022-03-17 19:03:41,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 515 to 483. [2022-03-17 19:03:41,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 483 states, 478 states have (on average 1.50418410041841) internal successors, (719), 478 states have internal predecessors, (719), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:03:41,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 723 transitions. [2022-03-17 19:03:41,777 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 723 transitions. Word has length 148 [2022-03-17 19:03:41,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:03:41,777 INFO L478 AbstractCegarLoop]: Abstraction has 483 states and 723 transitions. [2022-03-17 19:03:41,777 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) [2022-03-17 19:03:41,777 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 723 transitions. [2022-03-17 19:03:41,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-03-17 19:03:41,778 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:03:41,778 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:03:41,778 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-03-17 19:03:41,778 INFO L403 AbstractCegarLoop]: === Iteration 30 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:03:41,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:03:41,779 INFO L85 PathProgramCache]: Analyzing trace with hash -380938011, now seen corresponding path program 1 times [2022-03-17 19:03:41,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:03:41,779 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991104036] [2022-03-17 19:03:41,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:03:41,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:03:41,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:03:41,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:03:41,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:03:41,925 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-17 19:03:41,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:03:41,926 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [991104036] [2022-03-17 19:03:41,926 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [991104036] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:03:41,926 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:03:41,926 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:03:41,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162146889] [2022-03-17 19:03:41,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:03:41,926 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:03:41,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:03:41,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:03:41,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:03:41,927 INFO L87 Difference]: Start difference. First operand 483 states and 723 transitions. Second operand has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:03:44,798 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:03:46,820 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:03:48,846 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 [] [2022-03-17 19:03:49,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:03:49,248 INFO L93 Difference]: Finished difference Result 554 states and 820 transitions. [2022-03-17 19:03:49,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:03:49,248 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 149 [2022-03-17 19:03:49,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:03:49,250 INFO L225 Difference]: With dead ends: 554 [2022-03-17 19:03:49,250 INFO L226 Difference]: Without dead ends: 554 [2022-03-17 19:03:49,250 INFO L911 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 [2022-03-17 19:03:49,250 INFO L912 BasicCegarLoop]: 139 mSDtfsCounter, 127 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 469 mSolverCounterSat, 54 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 396 SdHoareTripleChecker+Invalid, 526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 469 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2022-03-17 19:03:49,251 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [127 Valid, 396 Invalid, 526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 469 Invalid, 3 Unknown, 0 Unchecked, 7.3s Time] [2022-03-17 19:03:49,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 554 states. [2022-03-17 19:03:49,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 554 to 483. [2022-03-17 19:03:49,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 483 states, 478 states have (on average 1.4895397489539748) internal successors, (712), 478 states have internal predecessors, (712), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:03:49,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 716 transitions. [2022-03-17 19:03:49,255 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 716 transitions. Word has length 149 [2022-03-17 19:03:49,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:03:49,255 INFO L478 AbstractCegarLoop]: Abstraction has 483 states and 716 transitions. [2022-03-17 19:03:49,255 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:03:49,255 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 716 transitions. [2022-03-17 19:03:49,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-03-17 19:03:49,256 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:03:49,256 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:03:49,256 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-03-17 19:03:49,256 INFO L403 AbstractCegarLoop]: === Iteration 31 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:03:49,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:03:49,257 INFO L85 PathProgramCache]: Analyzing trace with hash -1930272966, now seen corresponding path program 1 times [2022-03-17 19:03:49,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:03:49,257 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271212426] [2022-03-17 19:03:49,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:03:49,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:03:49,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:03:49,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:03:49,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:03:49,346 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 122 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-03-17 19:03:49,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:03:49,347 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [271212426] [2022-03-17 19:03:49,347 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [271212426] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:03:49,347 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:03:49,347 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:03:49,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962212280] [2022-03-17 19:03:49,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:03:49,347 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:03:49,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:03:49,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:03:49,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:03:49,348 INFO L87 Difference]: Start difference. First operand 483 states and 716 transitions. Second operand has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:03:51,359 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 [] [2022-03-17 19:03:51,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:03:51,764 INFO L93 Difference]: Finished difference Result 554 states and 813 transitions. [2022-03-17 19:03:51,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:03:51,765 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 153 [2022-03-17 19:03:51,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:03:51,766 INFO L225 Difference]: With dead ends: 554 [2022-03-17 19:03:51,766 INFO L226 Difference]: Without dead ends: 554 [2022-03-17 19:03:51,766 INFO L911 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 [2022-03-17 19:03:51,767 INFO L912 BasicCegarLoop]: 146 mSDtfsCounter, 131 mSDsluCounter, 264 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 51 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 410 SdHoareTripleChecker+Invalid, 529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-17 19:03:51,767 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [131 Valid, 410 Invalid, 529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 477 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-17 19:03:51,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 554 states. [2022-03-17 19:03:51,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 554 to 483. [2022-03-17 19:03:51,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 483 states, 478 states have (on average 1.4748953974895398) internal successors, (705), 478 states have internal predecessors, (705), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:03:51,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 709 transitions. [2022-03-17 19:03:51,771 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 709 transitions. Word has length 153 [2022-03-17 19:03:51,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:03:51,771 INFO L478 AbstractCegarLoop]: Abstraction has 483 states and 709 transitions. [2022-03-17 19:03:51,771 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:03:51,772 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 709 transitions. [2022-03-17 19:03:51,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-03-17 19:03:51,772 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:03:51,772 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:03:51,772 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-03-17 19:03:51,773 INFO L403 AbstractCegarLoop]: === Iteration 32 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:03:51,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:03:51,773 INFO L85 PathProgramCache]: Analyzing trace with hash -1871052229, now seen corresponding path program 1 times [2022-03-17 19:03:51,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:03:51,773 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90101234] [2022-03-17 19:03:51,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:03:51,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:03:51,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:03:51,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:03:51,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:03:51,877 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 137 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-03-17 19:03:51,877 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:03:51,877 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90101234] [2022-03-17 19:03:51,878 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [90101234] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:03:51,878 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:03:51,878 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 19:03:51,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516576898] [2022-03-17 19:03:51,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:03:51,878 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 19:03:51,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:03:51,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 19:03:51,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 19:03:51,880 INFO L87 Difference]: Start difference. First operand 483 states and 709 transitions. Second operand has 4 states, 4 states have (on average 30.25) internal successors, (121), 3 states have internal predecessors, (121), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:03:54,190 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:03:55,447 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:03:55,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:03:55,793 INFO L93 Difference]: Finished difference Result 935 states and 1367 transitions. [2022-03-17 19:03:55,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 19:03:55,793 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 3 states have internal predecessors, (121), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 153 [2022-03-17 19:03:55,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:03:55,796 INFO L225 Difference]: With dead ends: 935 [2022-03-17 19:03:55,796 INFO L226 Difference]: Without dead ends: 935 [2022-03-17 19:03:55,797 INFO L911 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 [2022-03-17 19:03:55,798 INFO L912 BasicCegarLoop]: 253 mSDtfsCounter, 139 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 315 mSolverCounterSat, 16 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 447 SdHoareTripleChecker+Invalid, 332 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 315 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-03-17 19:03:55,798 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [139 Valid, 447 Invalid, 332 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 315 Invalid, 1 Unknown, 0 Unchecked, 3.9s Time] [2022-03-17 19:03:55,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 935 states. [2022-03-17 19:03:55,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 935 to 933. [2022-03-17 19:03:55,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 933 states, 928 states have (on average 1.4676724137931034) internal successors, (1362), 928 states have internal predecessors, (1362), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:03:55,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 933 states to 933 states and 1366 transitions. [2022-03-17 19:03:55,810 INFO L78 Accepts]: Start accepts. Automaton has 933 states and 1366 transitions. Word has length 153 [2022-03-17 19:03:55,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:03:55,810 INFO L478 AbstractCegarLoop]: Abstraction has 933 states and 1366 transitions. [2022-03-17 19:03:55,810 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 3 states have internal predecessors, (121), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:03:55,810 INFO L276 IsEmpty]: Start isEmpty. Operand 933 states and 1366 transitions. [2022-03-17 19:03:55,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-03-17 19:03:55,815 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:03:55,815 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:03:55,815 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-03-17 19:03:55,816 INFO L403 AbstractCegarLoop]: === Iteration 33 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:03:55,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:03:55,816 INFO L85 PathProgramCache]: Analyzing trace with hash -794498820, now seen corresponding path program 1 times [2022-03-17 19:03:55,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:03:55,816 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314963777] [2022-03-17 19:03:55,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:03:55,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:03:55,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:03:55,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:03:55,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:03:55,892 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-03-17 19:03:55,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:03:55,893 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314963777] [2022-03-17 19:03:55,893 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1314963777] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:03:55,893 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:03:55,893 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 19:03:55,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321966672] [2022-03-17 19:03:55,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:03:55,893 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 19:03:55,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:03:55,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 19:03:55,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 19:03:55,894 INFO L87 Difference]: Start difference. First operand 933 states and 1366 transitions. Second operand has 4 states, 4 states have (on average 24.5) internal successors, (98), 3 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:03:57,609 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:03:59,628 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:03:59,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:03:59,857 INFO L93 Difference]: Finished difference Result 960 states and 1401 transitions. [2022-03-17 19:03:59,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 19:03:59,857 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 3 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 153 [2022-03-17 19:03:59,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:03:59,859 INFO L225 Difference]: With dead ends: 960 [2022-03-17 19:03:59,860 INFO L226 Difference]: Without dead ends: 960 [2022-03-17 19:03:59,860 INFO L911 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 [2022-03-17 19:03:59,860 INFO L912 BasicCegarLoop]: 233 mSDtfsCounter, 15 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 269 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 427 SdHoareTripleChecker+Invalid, 273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 269 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-03-17 19:03:59,860 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 427 Invalid, 273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 269 Invalid, 1 Unknown, 0 Unchecked, 3.9s Time] [2022-03-17 19:03:59,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 960 states. [2022-03-17 19:03:59,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 960 to 960. [2022-03-17 19:03:59,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 960 states, 955 states have (on average 1.46282722513089) internal successors, (1397), 955 states have internal predecessors, (1397), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:03:59,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 960 states to 960 states and 1401 transitions. [2022-03-17 19:03:59,868 INFO L78 Accepts]: Start accepts. Automaton has 960 states and 1401 transitions. Word has length 153 [2022-03-17 19:03:59,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:03:59,868 INFO L478 AbstractCegarLoop]: Abstraction has 960 states and 1401 transitions. [2022-03-17 19:03:59,868 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 3 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:03:59,868 INFO L276 IsEmpty]: Start isEmpty. Operand 960 states and 1401 transitions. [2022-03-17 19:03:59,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-03-17 19:03:59,870 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:03:59,870 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:03:59,870 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-03-17 19:03:59,870 INFO L403 AbstractCegarLoop]: === Iteration 34 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:03:59,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:03:59,870 INFO L85 PathProgramCache]: Analyzing trace with hash 1135732029, now seen corresponding path program 1 times [2022-03-17 19:03:59,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:03:59,870 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420151150] [2022-03-17 19:03:59,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:03:59,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:03:59,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:03:59,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:03:59,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:03:59,942 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2022-03-17 19:03:59,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:03:59,942 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1420151150] [2022-03-17 19:03:59,942 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1420151150] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:03:59,942 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:03:59,942 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 19:03:59,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205926776] [2022-03-17 19:03:59,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:03:59,943 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 19:03:59,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:03:59,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 19:03:59,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 19:03:59,943 INFO L87 Difference]: Start difference. First operand 960 states and 1401 transitions. Second operand has 4 states, 4 states have (on average 20.5) internal successors, (82), 3 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) [2022-03-17 19:04:01,503 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:04:03,521 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:04:03,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:04:03,749 INFO L93 Difference]: Finished difference Result 962 states and 1403 transitions. [2022-03-17 19:04:03,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 19:04:03,749 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 3 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 153 [2022-03-17 19:04:03,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:04:03,751 INFO L225 Difference]: With dead ends: 962 [2022-03-17 19:04:03,751 INFO L226 Difference]: Without dead ends: 962 [2022-03-17 19:04:03,752 INFO L911 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 [2022-03-17 19:04:03,752 INFO L912 BasicCegarLoop]: 221 mSDtfsCounter, 4 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 406 SdHoareTripleChecker+Invalid, 258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-03-17 19:04:03,752 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 406 Invalid, 258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 255 Invalid, 1 Unknown, 0 Unchecked, 3.8s Time] [2022-03-17 19:04:03,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 962 states. [2022-03-17 19:04:03,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 962 to 962. [2022-03-17 19:04:03,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 962 states, 957 states have (on average 1.4618599791013585) internal successors, (1399), 957 states have internal predecessors, (1399), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:04:03,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 962 states to 962 states and 1403 transitions. [2022-03-17 19:04:03,760 INFO L78 Accepts]: Start accepts. Automaton has 962 states and 1403 transitions. Word has length 153 [2022-03-17 19:04:03,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:04:03,760 INFO L478 AbstractCegarLoop]: Abstraction has 962 states and 1403 transitions. [2022-03-17 19:04:03,760 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 3 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) [2022-03-17 19:04:03,760 INFO L276 IsEmpty]: Start isEmpty. Operand 962 states and 1403 transitions. [2022-03-17 19:04:03,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-03-17 19:04:03,761 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:04:03,761 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-03-17 19:04:03,761 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-03-17 19:04:03,761 INFO L403 AbstractCegarLoop]: === Iteration 35 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:04:03,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:04:03,762 INFO L85 PathProgramCache]: Analyzing trace with hash -1936906933, now seen corresponding path program 1 times [2022-03-17 19:04:03,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:04:03,762 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055472866] [2022-03-17 19:04:03,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:04:03,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:04:03,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:04:03,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:04:03,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:04:03,908 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 137 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-03-17 19:04:03,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:04:03,908 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2055472866] [2022-03-17 19:04:03,908 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2055472866] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:04:03,909 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:04:03,909 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-17 19:04:03,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292958231] [2022-03-17 19:04:03,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:04:03,909 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-17 19:04:03,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:04:03,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-17 19:04:03,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-17 19:04:03,909 INFO L87 Difference]: Start difference. First operand 962 states and 1403 transitions. Second operand has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 5 states have internal predecessors, (122), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:04:05,393 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:04:07,415 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:04:08,762 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:04:10,651 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:04:12,676 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 [] [2022-03-17 19:04:13,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:04:13,251 INFO L93 Difference]: Finished difference Result 1493 states and 2171 transitions. [2022-03-17 19:04:13,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-17 19:04:13,252 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 5 states have internal predecessors, (122), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 154 [2022-03-17 19:04:13,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:04:13,255 INFO L225 Difference]: With dead ends: 1493 [2022-03-17 19:04:13,255 INFO L226 Difference]: Without dead ends: 1493 [2022-03-17 19:04:13,256 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-03-17 19:04:13,256 INFO L912 BasicCegarLoop]: 263 mSDtfsCounter, 92 mSDsluCounter, 572 mSDsCounter, 0 mSdLazyCounter, 752 mSolverCounterSat, 19 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 835 SdHoareTripleChecker+Invalid, 773 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 752 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.3s IncrementalHoareTripleChecker+Time [2022-03-17 19:04:13,256 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [92 Valid, 835 Invalid, 773 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 752 Invalid, 2 Unknown, 0 Unchecked, 9.3s Time] [2022-03-17 19:04:13,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1493 states. [2022-03-17 19:04:13,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1493 to 1475. [2022-03-17 19:04:13,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1475 states, 1470 states have (on average 1.4625850340136055) internal successors, (2150), 1470 states have internal predecessors, (2150), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:04:13,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1475 states to 1475 states and 2154 transitions. [2022-03-17 19:04:13,268 INFO L78 Accepts]: Start accepts. Automaton has 1475 states and 2154 transitions. Word has length 154 [2022-03-17 19:04:13,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:04:13,269 INFO L478 AbstractCegarLoop]: Abstraction has 1475 states and 2154 transitions. [2022-03-17 19:04:13,269 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 5 states have internal predecessors, (122), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:04:13,269 INFO L276 IsEmpty]: Start isEmpty. Operand 1475 states and 2154 transitions. [2022-03-17 19:04:13,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2022-03-17 19:04:13,271 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:04:13,271 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-03-17 19:04:13,271 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-03-17 19:04:13,271 INFO L403 AbstractCegarLoop]: === Iteration 36 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:04:13,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:04:13,271 INFO L85 PathProgramCache]: Analyzing trace with hash 1933578057, now seen corresponding path program 1 times [2022-03-17 19:04:13,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:04:13,271 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736578660] [2022-03-17 19:04:13,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:04:13,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:04:13,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:04:13,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:04:13,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:04:13,360 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 124 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-03-17 19:04:13,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:04:13,360 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736578660] [2022-03-17 19:04:13,360 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [736578660] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:04:13,360 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:04:13,360 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:04:13,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073420063] [2022-03-17 19:04:13,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:04:13,360 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:04:13,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:04:13,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:04:13,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:04:13,361 INFO L87 Difference]: Start difference. First operand 1475 states and 2154 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) [2022-03-17 19:04:17,090 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 [] [2022-03-17 19:04:17,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:04:17,503 INFO L93 Difference]: Finished difference Result 1604 states and 2310 transitions. [2022-03-17 19:04:17,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:04:17,504 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 155 [2022-03-17 19:04:17,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:04:17,507 INFO L225 Difference]: With dead ends: 1604 [2022-03-17 19:04:17,507 INFO L226 Difference]: Without dead ends: 1604 [2022-03-17 19:04:17,508 INFO L911 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 [2022-03-17 19:04:17,508 INFO L912 BasicCegarLoop]: 144 mSDtfsCounter, 130 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 476 mSolverCounterSat, 52 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 406 SdHoareTripleChecker+Invalid, 529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 476 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-03-17 19:04:17,508 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [130 Valid, 406 Invalid, 529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 476 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2022-03-17 19:04:17,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1604 states. [2022-03-17 19:04:17,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1604 to 1475. [2022-03-17 19:04:17,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1475 states, 1470 states have (on average 1.4469387755102041) internal successors, (2127), 1470 states have internal predecessors, (2127), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:04:17,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1475 states to 1475 states and 2131 transitions. [2022-03-17 19:04:17,521 INFO L78 Accepts]: Start accepts. Automaton has 1475 states and 2131 transitions. Word has length 155 [2022-03-17 19:04:17,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:04:17,521 INFO L478 AbstractCegarLoop]: Abstraction has 1475 states and 2131 transitions. [2022-03-17 19:04:17,521 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) [2022-03-17 19:04:17,521 INFO L276 IsEmpty]: Start isEmpty. Operand 1475 states and 2131 transitions. [2022-03-17 19:04:17,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-03-17 19:04:17,523 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:04:17,523 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:04:17,523 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-03-17 19:04:17,523 INFO L403 AbstractCegarLoop]: === Iteration 37 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:04:17,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:04:17,524 INFO L85 PathProgramCache]: Analyzing trace with hash 1187930418, now seen corresponding path program 1 times [2022-03-17 19:04:17,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:04:17,524 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006428060] [2022-03-17 19:04:17,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:04:17,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:04:17,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:04:17,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:04:17,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:04:17,612 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 144 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-03-17 19:04:17,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:04:17,613 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006428060] [2022-03-17 19:04:17,613 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1006428060] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:04:17,613 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:04:17,613 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:04:17,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589516192] [2022-03-17 19:04:17,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:04:17,613 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:04:17,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:04:17,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:04:17,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:04:17,614 INFO L87 Difference]: Start difference. First operand 1475 states and 2131 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:04:18,903 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:04:20,385 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:04:22,404 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 [] [2022-03-17 19:04:23,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:04:23,697 INFO L93 Difference]: Finished difference Result 1855 states and 2660 transitions. [2022-03-17 19:04:23,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:04:23,697 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 156 [2022-03-17 19:04:23,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:04:23,702 INFO L225 Difference]: With dead ends: 1855 [2022-03-17 19:04:23,702 INFO L226 Difference]: Without dead ends: 1855 [2022-03-17 19:04:23,702 INFO L911 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 [2022-03-17 19:04:23,702 INFO L912 BasicCegarLoop]: 144 mSDtfsCounter, 119 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 50 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 406 SdHoareTripleChecker+Invalid, 528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-03-17 19:04:23,703 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 406 Invalid, 528 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 477 Invalid, 1 Unknown, 0 Unchecked, 6.1s Time] [2022-03-17 19:04:23,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1855 states. [2022-03-17 19:04:23,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1855 to 1615. [2022-03-17 19:04:23,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1615 states, 1610 states have (on average 1.4409937888198758) internal successors, (2320), 1610 states have internal predecessors, (2320), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:04:23,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1615 states to 1615 states and 2324 transitions. [2022-03-17 19:04:23,716 INFO L78 Accepts]: Start accepts. Automaton has 1615 states and 2324 transitions. Word has length 156 [2022-03-17 19:04:23,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:04:23,716 INFO L478 AbstractCegarLoop]: Abstraction has 1615 states and 2324 transitions. [2022-03-17 19:04:23,716 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:04:23,716 INFO L276 IsEmpty]: Start isEmpty. Operand 1615 states and 2324 transitions. [2022-03-17 19:04:23,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2022-03-17 19:04:23,718 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:04:23,718 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:04:23,718 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-03-17 19:04:23,718 INFO L403 AbstractCegarLoop]: === Iteration 38 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:04:23,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:04:23,719 INFO L85 PathProgramCache]: Analyzing trace with hash -1360449574, now seen corresponding path program 1 times [2022-03-17 19:04:23,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:04:23,719 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128391549] [2022-03-17 19:04:23,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:04:23,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:04:23,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:04:23,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:04:23,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:04:23,819 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 146 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-03-17 19:04:23,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:04:23,819 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128391549] [2022-03-17 19:04:23,819 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [128391549] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:04:23,819 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:04:23,819 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:04:23,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952239839] [2022-03-17 19:04:23,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:04:23,820 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:04:23,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:04:23,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:04:23,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:04:23,820 INFO L87 Difference]: Start difference. First operand 1615 states and 2324 transitions. Second operand has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:04:26,781 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 [] [2022-03-17 19:04:28,802 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 [] [2022-03-17 19:04:29,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:04:29,972 INFO L93 Difference]: Finished difference Result 1744 states and 2488 transitions. [2022-03-17 19:04:29,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:04:29,973 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 157 [2022-03-17 19:04:29,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:04:29,977 INFO L225 Difference]: With dead ends: 1744 [2022-03-17 19:04:29,977 INFO L226 Difference]: Without dead ends: 1744 [2022-03-17 19:04:29,977 INFO L911 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 [2022-03-17 19:04:29,977 INFO L912 BasicCegarLoop]: 145 mSDtfsCounter, 118 mSDsluCounter, 263 mSDsCounter, 0 mSdLazyCounter, 476 mSolverCounterSat, 52 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 530 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 476 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-03-17 19:04:29,977 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [118 Valid, 408 Invalid, 530 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 476 Invalid, 2 Unknown, 0 Unchecked, 6.1s Time] [2022-03-17 19:04:29,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1744 states. [2022-03-17 19:04:29,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1744 to 1613. [2022-03-17 19:04:29,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1613 states, 1608 states have (on average 1.4322139303482586) internal successors, (2303), 1608 states have internal predecessors, (2303), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:04:29,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1613 states to 1613 states and 2307 transitions. [2022-03-17 19:04:29,990 INFO L78 Accepts]: Start accepts. Automaton has 1613 states and 2307 transitions. Word has length 157 [2022-03-17 19:04:29,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:04:29,991 INFO L478 AbstractCegarLoop]: Abstraction has 1613 states and 2307 transitions. [2022-03-17 19:04:29,991 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:04:29,991 INFO L276 IsEmpty]: Start isEmpty. Operand 1613 states and 2307 transitions. [2022-03-17 19:04:29,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2022-03-17 19:04:29,992 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:04:29,993 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 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] [2022-03-17 19:04:29,993 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-03-17 19:04:29,993 INFO L403 AbstractCegarLoop]: === Iteration 39 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:04:29,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:04:29,993 INFO L85 PathProgramCache]: Analyzing trace with hash 1924593925, now seen corresponding path program 1 times [2022-03-17 19:04:29,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:04:29,993 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060191840] [2022-03-17 19:04:29,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:04:29,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:04:30,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:04:30,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:04:30,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:04:30,107 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 126 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-03-17 19:04:30,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:04:30,107 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060191840] [2022-03-17 19:04:30,107 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2060191840] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:04:30,108 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:04:30,108 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:04:30,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895063030] [2022-03-17 19:04:30,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:04:30,108 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:04:30,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:04:30,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:04:30,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:04:30,109 INFO L87 Difference]: Start difference. First operand 1613 states and 2307 transitions. Second operand has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:04:32,857 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:04:34,882 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:04:36,910 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:04:37,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:04:37,378 INFO L93 Difference]: Finished difference Result 1987 states and 2809 transitions. [2022-03-17 19:04:37,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:04:37,379 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 160 [2022-03-17 19:04:37,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:04:37,383 INFO L225 Difference]: With dead ends: 1987 [2022-03-17 19:04:37,384 INFO L226 Difference]: Without dead ends: 1987 [2022-03-17 19:04:37,384 INFO L911 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 [2022-03-17 19:04:37,384 INFO L912 BasicCegarLoop]: 180 mSDtfsCounter, 127 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 512 mSolverCounterSat, 44 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 478 SdHoareTripleChecker+Invalid, 558 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 512 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2022-03-17 19:04:37,384 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [127 Valid, 478 Invalid, 558 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 512 Invalid, 2 Unknown, 0 Unchecked, 7.2s Time] [2022-03-17 19:04:37,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1987 states. [2022-03-17 19:04:37,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1987 to 1717. [2022-03-17 19:04:37,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1717 states, 1712 states have (on average 1.4158878504672898) internal successors, (2424), 1712 states have internal predecessors, (2424), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:04:37,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1717 states to 1717 states and 2428 transitions. [2022-03-17 19:04:37,398 INFO L78 Accepts]: Start accepts. Automaton has 1717 states and 2428 transitions. Word has length 160 [2022-03-17 19:04:37,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:04:37,398 INFO L478 AbstractCegarLoop]: Abstraction has 1717 states and 2428 transitions. [2022-03-17 19:04:37,398 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:04:37,399 INFO L276 IsEmpty]: Start isEmpty. Operand 1717 states and 2428 transitions. [2022-03-17 19:04:37,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2022-03-17 19:04:37,400 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:04:37,400 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 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] [2022-03-17 19:04:37,400 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-03-17 19:04:37,401 INFO L403 AbstractCegarLoop]: === Iteration 40 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:04:37,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:04:37,402 INFO L85 PathProgramCache]: Analyzing trace with hash 1323780289, now seen corresponding path program 1 times [2022-03-17 19:04:37,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:04:37,403 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035404893] [2022-03-17 19:04:37,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:04:37,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:04:37,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:04:37,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:04:37,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:04:37,494 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 128 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-03-17 19:04:37,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:04:37,494 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2035404893] [2022-03-17 19:04:37,494 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2035404893] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:04:37,494 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:04:37,494 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:04:37,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856410903] [2022-03-17 19:04:37,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:04:37,494 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:04:37,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:04:37,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:04:37,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:04:37,495 INFO L87 Difference]: Start difference. First operand 1717 states and 2428 transitions. Second operand has 5 states, 5 states have (on average 22.8) internal successors, (114), 4 states have internal predecessors, (114), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:04:38,536 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:04:40,553 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:04:43,005 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:04:43,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:04:43,436 INFO L93 Difference]: Finished difference Result 1846 states and 2580 transitions. [2022-03-17 19:04:43,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:04:43,436 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.8) internal successors, (114), 4 states have internal predecessors, (114), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 161 [2022-03-17 19:04:43,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:04:43,440 INFO L225 Difference]: With dead ends: 1846 [2022-03-17 19:04:43,440 INFO L226 Difference]: Without dead ends: 1846 [2022-03-17 19:04:43,440 INFO L911 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 [2022-03-17 19:04:43,441 INFO L912 BasicCegarLoop]: 145 mSDtfsCounter, 126 mSDsluCounter, 263 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 52 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 530 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-03-17 19:04:43,441 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [126 Valid, 408 Invalid, 530 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 477 Invalid, 1 Unknown, 0 Unchecked, 5.9s Time] [2022-03-17 19:04:43,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1846 states. [2022-03-17 19:04:43,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1846 to 1717. [2022-03-17 19:04:43,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1717 states, 1712 states have (on average 1.4001168224299065) internal successors, (2397), 1712 states have internal predecessors, (2397), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:04:43,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1717 states to 1717 states and 2401 transitions. [2022-03-17 19:04:43,461 INFO L78 Accepts]: Start accepts. Automaton has 1717 states and 2401 transitions. Word has length 161 [2022-03-17 19:04:43,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:04:43,461 INFO L478 AbstractCegarLoop]: Abstraction has 1717 states and 2401 transitions. [2022-03-17 19:04:43,461 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.8) internal successors, (114), 4 states have internal predecessors, (114), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:04:43,461 INFO L276 IsEmpty]: Start isEmpty. Operand 1717 states and 2401 transitions. [2022-03-17 19:04:43,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2022-03-17 19:04:43,477 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:04:43,478 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-03-17 19:04:43,478 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-03-17 19:04:43,478 INFO L403 AbstractCegarLoop]: === Iteration 41 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:04:43,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:04:43,478 INFO L85 PathProgramCache]: Analyzing trace with hash 1048598705, now seen corresponding path program 1 times [2022-03-17 19:04:43,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:04:43,478 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483997474] [2022-03-17 19:04:43,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:04:43,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:04:43,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:04:43,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:04:43,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:04:43,570 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 140 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-03-17 19:04:43,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:04:43,570 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [483997474] [2022-03-17 19:04:43,570 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [483997474] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:04:43,570 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:04:43,570 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:04:43,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707353892] [2022-03-17 19:04:43,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:04:43,571 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:04:43,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:04:43,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:04:43,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:04:43,573 INFO L87 Difference]: Start difference. First operand 1717 states and 2401 transitions. Second operand has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:04:46,498 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 [] [2022-03-17 19:04:47,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:04:47,396 INFO L93 Difference]: Finished difference Result 1762 states and 2456 transitions. [2022-03-17 19:04:47,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:04:47,396 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 164 [2022-03-17 19:04:47,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:04:47,399 INFO L225 Difference]: With dead ends: 1762 [2022-03-17 19:04:47,399 INFO L226 Difference]: Without dead ends: 1762 [2022-03-17 19:04:47,400 INFO L911 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 [2022-03-17 19:04:47,400 INFO L912 BasicCegarLoop]: 219 mSDtfsCounter, 37 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 459 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 563 SdHoareTripleChecker+Invalid, 467 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 459 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-03-17 19:04:47,400 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 563 Invalid, 467 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 459 Invalid, 1 Unknown, 0 Unchecked, 3.8s Time] [2022-03-17 19:04:47,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1762 states. [2022-03-17 19:04:47,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1762 to 1717. [2022-03-17 19:04:47,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1717 states, 1712 states have (on average 1.3983644859813085) internal successors, (2394), 1712 states have internal predecessors, (2394), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:04:47,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1717 states to 1717 states and 2398 transitions. [2022-03-17 19:04:47,436 INFO L78 Accepts]: Start accepts. Automaton has 1717 states and 2398 transitions. Word has length 164 [2022-03-17 19:04:47,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:04:47,436 INFO L478 AbstractCegarLoop]: Abstraction has 1717 states and 2398 transitions. [2022-03-17 19:04:47,436 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:04:47,436 INFO L276 IsEmpty]: Start isEmpty. Operand 1717 states and 2398 transitions. [2022-03-17 19:04:47,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-03-17 19:04:47,438 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:04:47,438 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-03-17 19:04:47,438 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-03-17 19:04:47,438 INFO L403 AbstractCegarLoop]: === Iteration 42 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:04:47,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:04:47,439 INFO L85 PathProgramCache]: Analyzing trace with hash -1501818664, now seen corresponding path program 1 times [2022-03-17 19:04:47,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:04:47,439 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278561853] [2022-03-17 19:04:47,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:04:47,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:04:47,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:04:47,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:04:47,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:04:47,523 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 142 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-03-17 19:04:47,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:04:47,523 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [278561853] [2022-03-17 19:04:47,523 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [278561853] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:04:47,523 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:04:47,523 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:04:47,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10311968] [2022-03-17 19:04:47,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:04:47,523 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:04:47,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:04:47,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:04:47,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:04:47,524 INFO L87 Difference]: Start difference. First operand 1717 states and 2398 transitions. Second operand has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:04:50,426 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:04:52,392 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.97s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:04:52,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:04:52,735 INFO L93 Difference]: Finished difference Result 1744 states and 2428 transitions. [2022-03-17 19:04:52,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:04:52,735 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 165 [2022-03-17 19:04:52,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:04:52,738 INFO L225 Difference]: With dead ends: 1744 [2022-03-17 19:04:52,738 INFO L226 Difference]: Without dead ends: 1744 [2022-03-17 19:04:52,738 INFO L911 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 [2022-03-17 19:04:52,738 INFO L912 BasicCegarLoop]: 219 mSDtfsCounter, 28 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 454 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 563 SdHoareTripleChecker+Invalid, 461 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 454 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-03-17 19:04:52,739 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 563 Invalid, 461 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 454 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2022-03-17 19:04:52,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1744 states. [2022-03-17 19:04:52,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1744 to 1706. [2022-03-17 19:04:52,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1706 states, 1701 states have (on average 1.3991769547325104) internal successors, (2380), 1701 states have internal predecessors, (2380), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:04:52,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1706 states to 1706 states and 2384 transitions. [2022-03-17 19:04:52,751 INFO L78 Accepts]: Start accepts. Automaton has 1706 states and 2384 transitions. Word has length 165 [2022-03-17 19:04:52,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:04:52,751 INFO L478 AbstractCegarLoop]: Abstraction has 1706 states and 2384 transitions. [2022-03-17 19:04:52,751 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:04:52,751 INFO L276 IsEmpty]: Start isEmpty. Operand 1706 states and 2384 transitions. [2022-03-17 19:04:52,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2022-03-17 19:04:52,753 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:04:52,753 INFO L500 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:04:52,753 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-03-17 19:04:52,753 INFO L403 AbstractCegarLoop]: === Iteration 43 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:04:52,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:04:52,753 INFO L85 PathProgramCache]: Analyzing trace with hash -1494416010, now seen corresponding path program 1 times [2022-03-17 19:04:52,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:04:52,754 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039588373] [2022-03-17 19:04:52,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:04:52,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:04:52,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:04:52,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:04:52,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:04:52,876 INFO L134 CoverageAnalysis]: Checked inductivity of 259 backedges. 183 proven. 0 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2022-03-17 19:04:52,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:04:52,877 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039588373] [2022-03-17 19:04:52,877 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1039588373] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:04:52,877 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:04:52,877 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:04:52,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411376537] [2022-03-17 19:04:52,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:04:52,878 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:04:52,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:04:52,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:04:52,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:04:52,879 INFO L87 Difference]: Start difference. First operand 1706 states and 2384 transitions. Second operand has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:04:53,975 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:04:55,689 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:04:57,707 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 [] [2022-03-17 19:04:58,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:04:58,047 INFO L93 Difference]: Finished difference Result 1740 states and 2422 transitions. [2022-03-17 19:04:58,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:04:58,047 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 167 [2022-03-17 19:04:58,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:04:58,050 INFO L225 Difference]: With dead ends: 1740 [2022-03-17 19:04:58,050 INFO L226 Difference]: Without dead ends: 1740 [2022-03-17 19:04:58,050 INFO L911 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 [2022-03-17 19:04:58,050 INFO L912 BasicCegarLoop]: 238 mSDtfsCounter, 22 mSDsluCounter, 362 mSDsCounter, 0 mSdLazyCounter, 432 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 600 SdHoareTripleChecker+Invalid, 438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 432 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-03-17 19:04:58,050 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 600 Invalid, 438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 432 Invalid, 1 Unknown, 0 Unchecked, 5.1s Time] [2022-03-17 19:04:58,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1740 states. [2022-03-17 19:04:58,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1740 to 1706. [2022-03-17 19:04:58,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1706 states, 1701 states have (on average 1.3968253968253967) internal successors, (2376), 1701 states have internal predecessors, (2376), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:04:58,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1706 states to 1706 states and 2380 transitions. [2022-03-17 19:04:58,066 INFO L78 Accepts]: Start accepts. Automaton has 1706 states and 2380 transitions. Word has length 167 [2022-03-17 19:04:58,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:04:58,067 INFO L478 AbstractCegarLoop]: Abstraction has 1706 states and 2380 transitions. [2022-03-17 19:04:58,068 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:04:58,068 INFO L276 IsEmpty]: Start isEmpty. Operand 1706 states and 2380 transitions. [2022-03-17 19:04:58,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2022-03-17 19:04:58,069 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:04:58,069 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:04:58,069 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-03-17 19:04:58,069 INFO L403 AbstractCegarLoop]: === Iteration 44 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:04:58,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:04:58,070 INFO L85 PathProgramCache]: Analyzing trace with hash 1891628692, now seen corresponding path program 1 times [2022-03-17 19:04:58,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:04:58,070 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249603379] [2022-03-17 19:04:58,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:04:58,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:04:58,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:04:58,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:04:58,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:04:58,477 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2022-03-17 19:04:58,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:04:58,477 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [249603379] [2022-03-17 19:04:58,477 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [249603379] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:04:58,477 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:04:58,477 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-17 19:04:58,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875848556] [2022-03-17 19:04:58,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:04:58,478 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-17 19:04:58,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:04:58,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-17 19:04:58,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-03-17 19:04:58,478 INFO L87 Difference]: Start difference. First operand 1706 states and 2380 transitions. Second operand has 7 states, 6 states have (on average 12.666666666666666) internal successors, (76), 5 states have internal predecessors, (76), 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) [2022-03-17 19:05:00,791 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:05:02,964 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:05:04,880 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:05:05,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:05:05,323 INFO L93 Difference]: Finished difference Result 1714 states and 2390 transitions. [2022-03-17 19:05:05,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-17 19:05:05,324 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 12.666666666666666) internal successors, (76), 5 states have internal predecessors, (76), 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 174 [2022-03-17 19:05:05,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:05:05,326 INFO L225 Difference]: With dead ends: 1714 [2022-03-17 19:05:05,326 INFO L226 Difference]: Without dead ends: 1706 [2022-03-17 19:05:05,326 INFO L911 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 [2022-03-17 19:05:05,326 INFO L912 BasicCegarLoop]: 219 mSDtfsCounter, 7 mSDsluCounter, 673 mSDsCounter, 0 mSdLazyCounter, 454 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 892 SdHoareTripleChecker+Invalid, 458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 454 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2022-03-17 19:05:05,326 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 892 Invalid, 458 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 454 Invalid, 0 Unknown, 0 Unchecked, 6.8s Time] [2022-03-17 19:05:05,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1706 states. [2022-03-17 19:05:05,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1706 to 1706. [2022-03-17 19:05:05,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1706 states, 1701 states have (on average 1.3962375073486184) internal successors, (2375), 1701 states have internal predecessors, (2375), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:05:05,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1706 states to 1706 states and 2379 transitions. [2022-03-17 19:05:05,339 INFO L78 Accepts]: Start accepts. Automaton has 1706 states and 2379 transitions. Word has length 174 [2022-03-17 19:05:05,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:05:05,339 INFO L478 AbstractCegarLoop]: Abstraction has 1706 states and 2379 transitions. [2022-03-17 19:05:05,339 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 12.666666666666666) internal successors, (76), 5 states have internal predecessors, (76), 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) [2022-03-17 19:05:05,339 INFO L276 IsEmpty]: Start isEmpty. Operand 1706 states and 2379 transitions. [2022-03-17 19:05:05,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2022-03-17 19:05:05,341 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:05:05,341 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:05:05,341 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-03-17 19:05:05,341 INFO L403 AbstractCegarLoop]: === Iteration 45 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:05:05,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:05:05,341 INFO L85 PathProgramCache]: Analyzing trace with hash 1546712947, now seen corresponding path program 1 times [2022-03-17 19:05:05,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:05:05,342 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922360379] [2022-03-17 19:05:05,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:05:05,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:05:05,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:05:06,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:05:06,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:05:06,211 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 14 proven. 146 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-03-17 19:05:06,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:05:06,211 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922360379] [2022-03-17 19:05:06,211 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [922360379] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-17 19:05:06,211 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1267892159] [2022-03-17 19:05:06,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:05:06,211 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-17 19:05:06,212 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-17 19:05:06,220 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) [2022-03-17 19:05:06,234 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-03-17 19:05:07,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:05:07,069 INFO L263 TraceCheckSpWp]: Trace formula consists of 1149 conjuncts, 217 conjunts are in the unsatisfiable core [2022-03-17 19:05:07,093 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-17 19:05:07,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:05:07,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:05:07,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:05:07,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:05:07,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:05:07,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:05:07,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:05:07,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:05:07,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:05:07,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:05:07,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:05:07,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:05:07,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:05:07,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:05:07,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:05:07,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:05:07,333 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 17 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28153 treesize of output 23896 [2022-03-17 19:05:07,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:05:07,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:05:07,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:05:07,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:05:07,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:05:07,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:05:07,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:05:07,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:05:07,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:05:07,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:05:07,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:05:07,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:05:07,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:05:07,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:05:07,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:05:07,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:05:07,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:05:07,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:05:07,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:05:07,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:05:07,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:05:07,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:05:07,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:05:07,433 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 18 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10709 treesize of output 1662