/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.16.i.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-34549b5 [2022-04-06 08:56:25,149 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-06 08:56:25,151 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-06 08:56:25,184 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-06 08:56:25,184 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-06 08:56:25,185 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-06 08:56:25,187 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-06 08:56:25,188 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-06 08:56:25,189 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-06 08:56:25,193 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-06 08:56:25,193 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-06 08:56:25,194 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-06 08:56:25,194 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-06 08:56:25,196 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-06 08:56:25,196 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-06 08:56:25,198 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-06 08:56:25,199 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-06 08:56:25,199 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-06 08:56:25,201 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-06 08:56:25,205 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-06 08:56:25,206 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-06 08:56:25,207 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-06 08:56:25,208 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-06 08:56:25,208 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-06 08:56:25,209 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-06 08:56:25,211 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-04-06 08:56:25,211 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-04-06 08:56:25,211 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-04-06 08:56:25,212 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-04-06 08:56:25,212 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-04-06 08:56:25,213 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-04-06 08:56:25,213 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-04-06 08:56:25,214 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-04-06 08:56:25,214 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-04-06 08:56:25,215 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-04-06 08:56:25,215 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-04-06 08:56:25,215 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-04-06 08:56:25,216 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-04-06 08:56:25,216 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-04-06 08:56:25,216 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-06 08:56:25,216 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-06 08:56:25,217 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-06 08:56:25,218 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2022-04-06 08:56:25,226 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-06 08:56:25,226 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-06 08:56:25,227 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-06 08:56:25,227 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-06 08:56:25,227 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-06 08:56:25,227 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-06 08:56:25,227 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-06 08:56:25,228 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-06 08:56:25,228 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-06 08:56:25,228 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-06 08:56:25,228 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-06 08:56:25,228 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-06 08:56:25,228 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-06 08:56:25,229 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-06 08:56:25,229 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-06 08:56:25,229 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-06 08:56:25,229 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-04-06 08:56:25,229 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-06 08:56:25,229 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-06 08:56:25,229 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-06 08:56:25,229 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-04-06 08:56:25,230 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-04-06 08:56:25,230 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-04-06 08:56:25,407 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-06 08:56:25,425 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-06 08:56:25,426 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-06 08:56:25,427 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-06 08:56:25,428 INFO L275 PluginConnector]: CDTParser initialized [2022-04-06 08:56:25,428 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl/s3_srvr.blast.16.i.cil-2.c [2022-04-06 08:56:25,477 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0576a3371/0c9c4ceee8964000b2b0d2670b48a61b/FLAG3b80fb9b2 [2022-04-06 08:56:25,918 INFO L306 CDTParser]: Found 1 translation units. [2022-04-06 08:56:25,918 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.16.i.cil-2.c [2022-04-06 08:56:25,939 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0576a3371/0c9c4ceee8964000b2b0d2670b48a61b/FLAG3b80fb9b2 [2022-04-06 08:56:25,950 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0576a3371/0c9c4ceee8964000b2b0d2670b48a61b [2022-04-06 08:56:25,952 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-06 08:56:25,953 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-04-06 08:56:25,954 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-06 08:56:25,954 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-06 08:56:25,957 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-06 08:56:25,957 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.04 08:56:25" (1/1) ... [2022-04-06 08:56:25,958 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7bec002a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 08:56:25, skipping insertion in model container [2022-04-06 08:56:25,958 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.04 08:56:25" (1/1) ... [2022-04-06 08:56:25,962 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-06 08:56:26,013 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-06 08:56:26,287 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.16.i.cil-2.c[77660,77673] [2022-04-06 08:56:26,292 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-06 08:56:26,307 INFO L203 MainTranslator]: Completed pre-run [2022-04-06 08:56:26,385 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.16.i.cil-2.c[77660,77673] [2022-04-06 08:56:26,387 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-06 08:56:26,397 INFO L208 MainTranslator]: Completed translation [2022-04-06 08:56:26,397 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 08:56:26 WrapperNode [2022-04-06 08:56:26,398 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-06 08:56:26,398 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-06 08:56:26,398 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-06 08:56:26,398 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-06 08:56:26,405 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 08:56:26" (1/1) ... [2022-04-06 08:56:26,405 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 08:56:26" (1/1) ... [2022-04-06 08:56:26,426 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 08:56:26" (1/1) ... [2022-04-06 08:56:26,426 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 08:56:26" (1/1) ... [2022-04-06 08:56:26,465 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 08:56:26" (1/1) ... [2022-04-06 08:56:26,474 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 08:56:26" (1/1) ... [2022-04-06 08:56:26,477 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 08:56:26" (1/1) ... [2022-04-06 08:56:26,480 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-06 08:56:26,481 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-06 08:56:26,481 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-06 08:56:26,481 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-06 08:56:26,482 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 08:56:26" (1/1) ... [2022-04-06 08:56:26,500 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-06 08:56:26,508 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-06 08:56:26,518 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) [2022-04-06 08:56:26,539 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 [2022-04-06 08:56:26,546 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-04-06 08:56:26,546 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-06 08:56:26,547 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-04-06 08:56:26,547 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_server_method [2022-04-06 08:56:26,547 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_server_method [2022-04-06 08:56:26,547 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-04-06 08:56:26,547 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-04-06 08:56:26,547 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-04-06 08:56:26,547 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-04-06 08:56:26,547 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-04-06 08:56:26,547 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-04-06 08:56:26,547 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-04-06 08:56:26,548 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-04-06 08:56:26,548 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-06 08:56:26,548 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-04-06 08:56:26,548 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-04-06 08:56:26,548 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-04-06 08:56:26,548 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-04-06 08:56:26,548 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-04-06 08:56:26,548 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-04-06 08:56:26,548 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_server_method [2022-04-06 08:56:26,548 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-04-06 08:56:26,548 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-04-06 08:56:26,548 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_server_method [2022-04-06 08:56:26,548 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-04-06 08:56:26,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-04-06 08:56:26,549 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-04-06 08:56:26,549 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-04-06 08:56:26,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-06 08:56:26,549 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-04-06 08:56:26,549 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-06 08:56:26,549 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-04-06 08:56:26,549 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-04-06 08:56:26,549 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-04-06 08:56:26,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-06 08:56:26,549 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-06 08:56:26,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-04-06 08:56:26,550 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-04-06 08:56:26,550 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-04-06 08:56:26,550 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-04-06 08:56:26,550 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-06 08:56:26,699 INFO L234 CfgBuilder]: Building ICFG [2022-04-06 08:56:26,703 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-06 08:56:27,349 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-04-06 08:56:27,781 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2022-04-06 08:56:27,781 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2022-04-06 08:56:27,790 INFO L275 CfgBuilder]: Performing block encoding [2022-04-06 08:56:27,798 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-06 08:56:27,798 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-04-06 08:56:27,800 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.04 08:56:27 BoogieIcfgContainer [2022-04-06 08:56:27,800 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-06 08:56:27,800 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-04-06 08:56:27,801 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-04-06 08:56:27,803 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-04-06 08:56:27,805 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.04 08:56:27" (1/1) ... [2022-04-06 08:56:27,806 INFO L168 ansformationObserver]: Applying ICFG transformation LOOP_ACCELERATION_JORDAN [2022-04-06 08:56:27,872 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 06.04 08:56:27 BasicIcfg [2022-04-06 08:56:27,872 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-04-06 08:56:27,873 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-06 08:56:27,873 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-06 08:56:27,875 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-06 08:56:27,875 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.04 08:56:25" (1/4) ... [2022-04-06 08:56:27,876 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1251ae2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.04 08:56:27, skipping insertion in model container [2022-04-06 08:56:27,876 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 08:56:26" (2/4) ... [2022-04-06 08:56:27,876 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1251ae2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.04 08:56:27, skipping insertion in model container [2022-04-06 08:56:27,876 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.04 08:56:27" (3/4) ... [2022-04-06 08:56:27,876 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1251ae2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.04 08:56:27, skipping insertion in model container [2022-04-06 08:56:27,876 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 06.04 08:56:27" (4/4) ... [2022-04-06 08:56:27,877 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr.blast.16.i.cil-2.cJordan [2022-04-06 08:56:27,882 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2022-04-06 08:56:27,882 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-04-06 08:56:27,918 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-06 08:56:27,923 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 [2022-04-06 08:56:27,924 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-04-06 08:56:27,947 INFO L276 IsEmpty]: Start isEmpty. Operand has 167 states, 159 states have (on average 1.7232704402515724) internal successors, (274), 160 states have internal predecessors, (274), 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) [2022-04-06 08:56:27,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-04-06 08:56:27,958 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:56:27,959 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:56:27,959 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:56:27,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:56:27,963 INFO L85 PathProgramCache]: Analyzing trace with hash -359617006, now seen corresponding path program 1 times [2022-04-06 08:56:27,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:56:27,969 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137284622] [2022-04-06 08:56:27,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:56:27,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:56:28,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:56:28,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:56:28,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:56:28,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 08:56:28,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:56:28,382 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137284622] [2022-04-06 08:56:28,382 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2137284622] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:56:28,382 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:56:28,382 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:56:28,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069975665] [2022-04-06 08:56:28,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:56:28,388 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:56:28,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:56:28,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:56:28,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:56:28,411 INFO L87 Difference]: Start difference. First operand has 167 states, 159 states have (on average 1.7232704402515724) internal successors, (274), 160 states have internal predecessors, (274), 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 9.4) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:56:30,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:56:30,535 INFO L93 Difference]: Finished difference Result 200 states and 330 transitions. [2022-04-06 08:56:30,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:56:30,537 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 51 [2022-04-06 08:56:30,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:56:30,542 INFO L225 Difference]: With dead ends: 200 [2022-04-06 08:56:30,543 INFO L226 Difference]: Without dead ends: 179 [2022-04-06 08:56:30,544 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:56:30,546 INFO L913 BasicCegarLoop]: 247 mSDtfsCounter, 34 mSDsluCounter, 414 mSDsCounter, 0 mSdLazyCounter, 433 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 661 SdHoareTripleChecker+Invalid, 444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 433 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-04-06 08:56:30,546 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 661 Invalid, 444 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 433 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-04-06 08:56:30,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2022-04-06 08:56:30,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 162. [2022-04-06 08:56:30,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 157 states have (on average 1.5796178343949046) internal successors, (248), 157 states have internal predecessors, (248), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:56:30,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 252 transitions. [2022-04-06 08:56:30,573 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 252 transitions. Word has length 51 [2022-04-06 08:56:30,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:56:30,574 INFO L478 AbstractCegarLoop]: Abstraction has 162 states and 252 transitions. [2022-04-06 08:56:30,574 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:56:30,574 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 252 transitions. [2022-04-06 08:56:30,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-04-06 08:56:30,581 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:56:30,581 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:56:30,581 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-06 08:56:30,581 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:56:30,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:56:30,582 INFO L85 PathProgramCache]: Analyzing trace with hash -1602858961, now seen corresponding path program 1 times [2022-04-06 08:56:30,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:56:30,582 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188839041] [2022-04-06 08:56:30,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:56:30,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:56:30,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:56:30,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:56:30,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:56:30,746 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 08:56:30,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:56:30,746 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188839041] [2022-04-06 08:56:30,746 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1188839041] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:56:30,746 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:56:30,747 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:56:30,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519393685] [2022-04-06 08:56:30,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:56:30,748 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:56:30,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:56:30,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:56:30,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:56:30,748 INFO L87 Difference]: Start difference. First operand 162 states and 252 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) [2022-04-06 08:56:33,639 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:56:35,662 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 [] [2022-04-06 08:56:36,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:56:36,320 INFO L93 Difference]: Finished difference Result 288 states and 450 transitions. [2022-04-06 08:56:36,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:56:36,320 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 [2022-04-06 08:56:36,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:56:36,322 INFO L225 Difference]: With dead ends: 288 [2022-04-06 08:56:36,322 INFO L226 Difference]: Without dead ends: 288 [2022-04-06 08:56:36,322 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:56:36,323 INFO L913 BasicCegarLoop]: 295 mSDtfsCounter, 161 mSDsluCounter, 421 mSDsCounter, 0 mSdLazyCounter, 657 mSolverCounterSat, 46 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 716 SdHoareTripleChecker+Invalid, 704 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 657 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-04-06 08:56:36,324 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [161 Valid, 716 Invalid, 704 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 657 Invalid, 1 Unknown, 0 Unchecked, 5.5s Time] [2022-04-06 08:56:36,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states. [2022-04-06 08:56:36,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 178. [2022-04-06 08:56:36,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178 states, 173 states have (on average 1.5780346820809248) internal successors, (273), 173 states have internal predecessors, (273), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:56:36,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 277 transitions. [2022-04-06 08:56:36,340 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 277 transitions. Word has length 64 [2022-04-06 08:56:36,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:56:36,340 INFO L478 AbstractCegarLoop]: Abstraction has 178 states and 277 transitions. [2022-04-06 08:56:36,340 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) [2022-04-06 08:56:36,340 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 277 transitions. [2022-04-06 08:56:36,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-04-06 08:56:36,342 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:56:36,342 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:56:36,342 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-06 08:56:36,342 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:56:36,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:56:36,343 INFO L85 PathProgramCache]: Analyzing trace with hash -704515848, now seen corresponding path program 1 times [2022-04-06 08:56:36,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:56:36,343 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984819322] [2022-04-06 08:56:36,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:56:36,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:56:36,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:56:36,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:56:36,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:56:36,536 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 08:56:36,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:56:36,536 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984819322] [2022-04-06 08:56:36,536 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [984819322] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:56:36,536 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:56:36,536 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:56:36,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558986165] [2022-04-06 08:56:36,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:56:36,537 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:56:36,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:56:36,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:56:36,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:56:36,537 INFO L87 Difference]: Start difference. First operand 178 states and 277 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) [2022-04-06 08:56:38,546 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:56:39,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:56:39,080 INFO L93 Difference]: Finished difference Result 303 states and 473 transitions. [2022-04-06 08:56:39,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:56:39,080 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 [2022-04-06 08:56:39,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:56:39,082 INFO L225 Difference]: With dead ends: 303 [2022-04-06 08:56:39,082 INFO L226 Difference]: Without dead ends: 303 [2022-04-06 08:56:39,082 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:56:39,083 INFO L913 BasicCegarLoop]: 136 mSDtfsCounter, 166 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 489 mSolverCounterSat, 63 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 398 SdHoareTripleChecker+Invalid, 553 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 489 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-04-06 08:56:39,084 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [166 Valid, 398 Invalid, 553 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 489 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-04-06 08:56:39,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2022-04-06 08:56:39,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 189. [2022-04-06 08:56:39,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189 states, 184 states have (on average 1.559782608695652) internal successors, (287), 184 states have internal predecessors, (287), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:56:39,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 291 transitions. [2022-04-06 08:56:39,093 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 291 transitions. Word has length 65 [2022-04-06 08:56:39,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:56:39,093 INFO L478 AbstractCegarLoop]: Abstraction has 189 states and 291 transitions. [2022-04-06 08:56:39,093 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) [2022-04-06 08:56:39,093 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 291 transitions. [2022-04-06 08:56:39,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-04-06 08:56:39,099 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:56:39,100 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:56:39,100 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-04-06 08:56:39,101 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:56:39,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:56:39,102 INFO L85 PathProgramCache]: Analyzing trace with hash 257305816, now seen corresponding path program 1 times [2022-04-06 08:56:39,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:56:39,102 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902788661] [2022-04-06 08:56:39,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:56:39,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:56:39,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:56:39,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:56:39,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:56:39,268 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 08:56:39,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:56:39,271 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902788661] [2022-04-06 08:56:39,271 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [902788661] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:56:39,271 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:56:39,271 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:56:39,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087532642] [2022-04-06 08:56:39,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:56:39,272 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:56:39,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:56:39,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:56:39,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:56:39,273 INFO L87 Difference]: Start difference. First operand 189 states and 291 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) [2022-04-06 08:56:41,516 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:56:43,173 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:56:45,157 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:56:45,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:56:45,612 INFO L93 Difference]: Finished difference Result 303 states and 470 transitions. [2022-04-06 08:56:45,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:56:45,612 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 [2022-04-06 08:56:45,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:56:45,614 INFO L225 Difference]: With dead ends: 303 [2022-04-06 08:56:45,614 INFO L226 Difference]: Without dead ends: 303 [2022-04-06 08:56:45,614 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:56:45,614 INFO L913 BasicCegarLoop]: 136 mSDtfsCounter, 164 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 492 mSolverCounterSat, 63 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 398 SdHoareTripleChecker+Invalid, 556 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 492 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-04-06 08:56:45,615 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [164 Valid, 398 Invalid, 556 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 492 Invalid, 1 Unknown, 0 Unchecked, 6.3s Time] [2022-04-06 08:56:45,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2022-04-06 08:56:45,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 190. [2022-04-06 08:56:45,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 185 states have (on average 1.545945945945946) internal successors, (286), 185 states have internal predecessors, (286), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:56:45,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 290 transitions. [2022-04-06 08:56:45,621 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 290 transitions. Word has length 65 [2022-04-06 08:56:45,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:56:45,621 INFO L478 AbstractCegarLoop]: Abstraction has 190 states and 290 transitions. [2022-04-06 08:56:45,622 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) [2022-04-06 08:56:45,622 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 290 transitions. [2022-04-06 08:56:45,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-04-06 08:56:45,623 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:56:45,623 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:56:45,623 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-04-06 08:56:45,623 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:56:45,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:56:45,624 INFO L85 PathProgramCache]: Analyzing trace with hash 1845016728, now seen corresponding path program 1 times [2022-04-06 08:56:45,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:56:45,624 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986970034] [2022-04-06 08:56:45,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:56:45,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:56:45,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:56:45,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:56:45,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:56:45,744 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 08:56:45,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:56:45,745 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986970034] [2022-04-06 08:56:45,745 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1986970034] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:56:45,745 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:56:45,745 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:56:45,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585317660] [2022-04-06 08:56:45,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:56:45,746 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:56:45,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:56:45,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:56:45,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:56:45,746 INFO L87 Difference]: Start difference. First operand 190 states and 290 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) [2022-04-06 08:56:47,063 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 [] [2022-04-06 08:56:49,007 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:56:51,030 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:56:53,055 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 [] [2022-04-06 08:56:53,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:56:53,378 INFO L93 Difference]: Finished difference Result 204 states and 307 transitions. [2022-04-06 08:56:53,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:56:53,379 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 [2022-04-06 08:56:53,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:56:53,380 INFO L225 Difference]: With dead ends: 204 [2022-04-06 08:56:53,380 INFO L226 Difference]: Without dead ends: 204 [2022-04-06 08:56:53,380 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:56:53,380 INFO L913 BasicCegarLoop]: 208 mSDtfsCounter, 20 mSDsluCounter, 335 mSDsCounter, 0 mSdLazyCounter, 374 mSolverCounterSat, 8 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 543 SdHoareTripleChecker+Invalid, 384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 374 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2022-04-06 08:56:53,381 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 543 Invalid, 384 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 374 Invalid, 2 Unknown, 0 Unchecked, 7.6s Time] [2022-04-06 08:56:53,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2022-04-06 08:56:53,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 190. [2022-04-06 08:56:53,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 185 states have (on average 1.5405405405405406) internal successors, (285), 185 states have internal predecessors, (285), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:56:53,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 289 transitions. [2022-04-06 08:56:53,398 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 289 transitions. Word has length 65 [2022-04-06 08:56:53,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:56:53,398 INFO L478 AbstractCegarLoop]: Abstraction has 190 states and 289 transitions. [2022-04-06 08:56:53,399 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) [2022-04-06 08:56:53,399 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 289 transitions. [2022-04-06 08:56:53,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-04-06 08:56:53,400 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:56:53,400 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:56:53,400 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-04-06 08:56:53,400 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:56:53,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:56:53,401 INFO L85 PathProgramCache]: Analyzing trace with hash -87401096, now seen corresponding path program 1 times [2022-04-06 08:56:53,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:56:53,401 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415904115] [2022-04-06 08:56:53,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:56:53,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:56:53,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:56:53,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:56:53,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:56:53,521 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 08:56:53,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:56:53,522 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415904115] [2022-04-06 08:56:53,522 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [415904115] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:56:53,522 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:56:53,522 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:56:53,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714987281] [2022-04-06 08:56:53,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:56:53,523 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:56:53,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:56:53,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:56:53,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:56:53,523 INFO L87 Difference]: Start difference. First operand 190 states and 289 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) [2022-04-06 08:56:56,256 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 [] [2022-04-06 08:56:58,897 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:56:59,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:56:59,203 INFO L93 Difference]: Finished difference Result 203 states and 305 transitions. [2022-04-06 08:56:59,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:56:59,204 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 [2022-04-06 08:56:59,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:56:59,206 INFO L225 Difference]: With dead ends: 203 [2022-04-06 08:56:59,206 INFO L226 Difference]: Without dead ends: 203 [2022-04-06 08:56:59,207 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:56:59,209 INFO L913 BasicCegarLoop]: 209 mSDtfsCounter, 18 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 373 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 545 SdHoareTripleChecker+Invalid, 382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 373 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-04-06 08:56:59,209 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 545 Invalid, 382 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 373 Invalid, 1 Unknown, 0 Unchecked, 5.7s Time] [2022-04-06 08:56:59,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2022-04-06 08:56:59,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 190. [2022-04-06 08:56:59,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 185 states have (on average 1.5351351351351352) internal successors, (284), 185 states have internal predecessors, (284), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:56:59,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 288 transitions. [2022-04-06 08:56:59,218 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 288 transitions. Word has length 65 [2022-04-06 08:56:59,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:56:59,218 INFO L478 AbstractCegarLoop]: Abstraction has 190 states and 288 transitions. [2022-04-06 08:56:59,218 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) [2022-04-06 08:56:59,219 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 288 transitions. [2022-04-06 08:56:59,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-04-06 08:56:59,224 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:56:59,224 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:56:59,224 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-04-06 08:56:59,224 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:56:59,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:56:59,225 INFO L85 PathProgramCache]: Analyzing trace with hash -1229949233, now seen corresponding path program 1 times [2022-04-06 08:56:59,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:56:59,225 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299814600] [2022-04-06 08:56:59,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:56:59,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:56:59,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:56:59,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:56:59,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:56:59,330 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 08:56:59,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:56:59,330 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299814600] [2022-04-06 08:56:59,330 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1299814600] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:56:59,330 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:56:59,331 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:56:59,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129549003] [2022-04-06 08:56:59,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:56:59,331 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:56:59,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:56:59,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:56:59,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:56:59,332 INFO L87 Difference]: Start difference. First operand 190 states and 288 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) [2022-04-06 08:57:00,714 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 [] [2022-04-06 08:57:01,791 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:57:03,288 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:57:03,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:57:03,778 INFO L93 Difference]: Finished difference Result 303 states and 465 transitions. [2022-04-06 08:57:03,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:57:03,779 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 [2022-04-06 08:57:03,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:57:03,780 INFO L225 Difference]: With dead ends: 303 [2022-04-06 08:57:03,780 INFO L226 Difference]: Without dead ends: 303 [2022-04-06 08:57:03,781 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:57:03,781 INFO L913 BasicCegarLoop]: 136 mSDtfsCounter, 162 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 493 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 398 SdHoareTripleChecker+Invalid, 556 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 493 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-04-06 08:57:03,781 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [162 Valid, 398 Invalid, 556 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 493 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2022-04-06 08:57:03,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2022-04-06 08:57:03,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 191. [2022-04-06 08:57:03,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 186 states have (on average 1.521505376344086) internal successors, (283), 186 states have internal predecessors, (283), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:57:03,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 287 transitions. [2022-04-06 08:57:03,785 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 287 transitions. Word has length 66 [2022-04-06 08:57:03,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:57:03,785 INFO L478 AbstractCegarLoop]: Abstraction has 191 states and 287 transitions. [2022-04-06 08:57:03,785 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) [2022-04-06 08:57:03,785 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 287 transitions. [2022-04-06 08:57:03,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-04-06 08:57:03,786 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:57:03,786 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:57:03,786 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-04-06 08:57:03,786 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:57:03,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:57:03,787 INFO L85 PathProgramCache]: Analyzing trace with hash -506858700, now seen corresponding path program 1 times [2022-04-06 08:57:03,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:57:03,787 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765905979] [2022-04-06 08:57:03,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:57:03,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:57:03,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:57:03,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:57:03,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:57:03,895 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 08:57:03,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:57:03,895 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [765905979] [2022-04-06 08:57:03,896 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [765905979] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:57:03,896 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:57:03,896 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:57:03,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541056515] [2022-04-06 08:57:03,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:57:03,896 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:57:03,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:57:03,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:57:03,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:57:03,897 INFO L87 Difference]: Start difference. First operand 191 states and 287 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) [2022-04-06 08:57:06,126 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:57:08,153 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:57:09,274 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 [] [2022-04-06 08:57:09,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:57:09,583 INFO L93 Difference]: Finished difference Result 204 states and 303 transitions. [2022-04-06 08:57:09,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:57:09,584 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 [2022-04-06 08:57:09,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:57:09,585 INFO L225 Difference]: With dead ends: 204 [2022-04-06 08:57:09,585 INFO L226 Difference]: Without dead ends: 204 [2022-04-06 08:57:09,585 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:57:09,586 INFO L913 BasicCegarLoop]: 209 mSDtfsCounter, 20 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 373 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 545 SdHoareTripleChecker+Invalid, 382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 373 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-04-06 08:57:09,586 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 545 Invalid, 382 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 373 Invalid, 1 Unknown, 0 Unchecked, 5.7s Time] [2022-04-06 08:57:09,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2022-04-06 08:57:09,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 191. [2022-04-06 08:57:09,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 186 states have (on average 1.5161290322580645) internal successors, (282), 186 states have internal predecessors, (282), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:57:09,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 286 transitions. [2022-04-06 08:57:09,589 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 286 transitions. Word has length 67 [2022-04-06 08:57:09,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:57:09,590 INFO L478 AbstractCegarLoop]: Abstraction has 191 states and 286 transitions. [2022-04-06 08:57:09,590 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) [2022-04-06 08:57:09,590 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 286 transitions. [2022-04-06 08:57:09,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-04-06 08:57:09,590 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:57:09,590 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:57:09,590 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-04-06 08:57:09,590 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:57:09,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:57:09,591 INFO L85 PathProgramCache]: Analyzing trace with hash -952112884, now seen corresponding path program 1 times [2022-04-06 08:57:09,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:57:09,592 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511581170] [2022-04-06 08:57:09,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:57:09,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:57:09,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:57:09,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:57:09,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:57:09,679 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 08:57:09,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:57:09,680 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511581170] [2022-04-06 08:57:09,680 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [511581170] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:57:09,680 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:57:09,680 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:57:09,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047557956] [2022-04-06 08:57:09,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:57:09,681 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:57:09,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:57:09,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:57:09,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:57:09,681 INFO L87 Difference]: Start difference. First operand 191 states and 286 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:57:12,663 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 [] [2022-04-06 08:57:15,205 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 [] [2022-04-06 08:57:15,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:57:15,509 INFO L93 Difference]: Finished difference Result 194 states and 289 transitions. [2022-04-06 08:57:15,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:57:15,510 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 68 [2022-04-06 08:57:15,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:57:15,511 INFO L225 Difference]: With dead ends: 194 [2022-04-06 08:57:15,511 INFO L226 Difference]: Without dead ends: 194 [2022-04-06 08:57:15,511 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:57:15,511 INFO L913 BasicCegarLoop]: 216 mSDtfsCounter, 11 mSDsluCounter, 343 mSDsCounter, 0 mSdLazyCounter, 359 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 559 SdHoareTripleChecker+Invalid, 364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 359 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-04-06 08:57:15,512 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 559 Invalid, 364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 359 Invalid, 1 Unknown, 0 Unchecked, 5.8s Time] [2022-04-06 08:57:15,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2022-04-06 08:57:15,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 191. [2022-04-06 08:57:15,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 186 states have (on average 1.510752688172043) internal successors, (281), 186 states have internal predecessors, (281), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:57:15,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 285 transitions. [2022-04-06 08:57:15,515 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 285 transitions. Word has length 68 [2022-04-06 08:57:15,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:57:15,515 INFO L478 AbstractCegarLoop]: Abstraction has 191 states and 285 transitions. [2022-04-06 08:57:15,515 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:57:15,515 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 285 transitions. [2022-04-06 08:57:15,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-04-06 08:57:15,516 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:57:15,516 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:57:15,516 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-04-06 08:57:15,516 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:57:15,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:57:15,516 INFO L85 PathProgramCache]: Analyzing trace with hash 1316823101, now seen corresponding path program 1 times [2022-04-06 08:57:15,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:57:15,517 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999789154] [2022-04-06 08:57:15,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:57:15,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:57:15,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:57:15,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:57:15,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:57:15,603 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 08:57:15,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:57:15,603 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [999789154] [2022-04-06 08:57:15,604 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [999789154] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:57:15,604 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:57:15,604 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:57:15,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713646169] [2022-04-06 08:57:15,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:57:15,604 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:57:15,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:57:15,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:57:15,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:57:15,605 INFO L87 Difference]: Start difference. First operand 191 states and 285 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:57:18,050 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:57:20,470 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 [] [2022-04-06 08:57:20,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:57:20,941 INFO L93 Difference]: Finished difference Result 320 states and 486 transitions. [2022-04-06 08:57:20,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:57:20,941 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 68 [2022-04-06 08:57:20,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:57:20,943 INFO L225 Difference]: With dead ends: 320 [2022-04-06 08:57:20,943 INFO L226 Difference]: Without dead ends: 320 [2022-04-06 08:57:20,943 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:57:20,944 INFO L913 BasicCegarLoop]: 137 mSDtfsCounter, 136 mSDsluCounter, 263 mSDsCounter, 0 mSdLazyCounter, 496 mSolverCounterSat, 60 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 400 SdHoareTripleChecker+Invalid, 557 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 496 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-04-06 08:57:20,944 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [136 Valid, 400 Invalid, 557 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 496 Invalid, 1 Unknown, 0 Unchecked, 5.3s Time] [2022-04-06 08:57:20,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2022-04-06 08:57:20,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 234. [2022-04-06 08:57:20,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 229 states have (on average 1.554585152838428) internal successors, (356), 229 states have internal predecessors, (356), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:57:20,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 360 transitions. [2022-04-06 08:57:20,948 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 360 transitions. Word has length 68 [2022-04-06 08:57:20,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:57:20,948 INFO L478 AbstractCegarLoop]: Abstraction has 234 states and 360 transitions. [2022-04-06 08:57:20,948 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:57:20,949 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 360 transitions. [2022-04-06 08:57:20,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-04-06 08:57:20,949 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:57:20,949 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:57:20,954 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-04-06 08:57:20,954 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:57:20,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:57:20,955 INFO L85 PathProgramCache]: Analyzing trace with hash 381885929, now seen corresponding path program 1 times [2022-04-06 08:57:20,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:57:20,955 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71114446] [2022-04-06 08:57:20,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:57:20,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:57:21,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:57:21,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:57:21,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:57:21,060 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 08:57:21,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:57:21,060 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [71114446] [2022-04-06 08:57:21,060 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [71114446] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:57:21,060 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:57:21,060 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:57:21,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327451759] [2022-04-06 08:57:21,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:57:21,061 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:57:21,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:57:21,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:57:21,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:57:21,061 INFO L87 Difference]: Start difference. First operand 234 states and 360 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:57:22,365 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 [] [2022-04-06 08:57:24,384 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:57:27,047 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:57:27,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:57:27,424 INFO L93 Difference]: Finished difference Result 276 states and 420 transitions. [2022-04-06 08:57:27,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:57:27,425 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 69 [2022-04-06 08:57:27,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:57:27,426 INFO L225 Difference]: With dead ends: 276 [2022-04-06 08:57:27,426 INFO L226 Difference]: Without dead ends: 276 [2022-04-06 08:57:27,426 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:57:27,427 INFO L913 BasicCegarLoop]: 213 mSDtfsCounter, 30 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 412 mSolverCounterSat, 10 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 559 SdHoareTripleChecker+Invalid, 424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 412 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-04-06 08:57:27,427 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 559 Invalid, 424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 412 Invalid, 2 Unknown, 0 Unchecked, 6.3s Time] [2022-04-06 08:57:27,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2022-04-06 08:57:27,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 256. [2022-04-06 08:57:27,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256 states, 251 states have (on average 1.5537848605577689) internal successors, (390), 251 states have internal predecessors, (390), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:57:27,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 394 transitions. [2022-04-06 08:57:27,433 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 394 transitions. Word has length 69 [2022-04-06 08:57:27,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:57:27,434 INFO L478 AbstractCegarLoop]: Abstraction has 256 states and 394 transitions. [2022-04-06 08:57:27,434 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:57:27,434 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 394 transitions. [2022-04-06 08:57:27,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-04-06 08:57:27,435 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:57:27,435 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:57:27,435 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-04-06 08:57:27,435 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:57:27,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:57:27,435 INFO L85 PathProgramCache]: Analyzing trace with hash -2053364893, now seen corresponding path program 1 times [2022-04-06 08:57:27,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:57:27,435 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173286179] [2022-04-06 08:57:27,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:57:27,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:57:27,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:57:27,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:57:27,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:57:27,547 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 08:57:27,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:57:27,547 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173286179] [2022-04-06 08:57:27,547 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [173286179] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:57:27,547 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:57:27,547 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:57:27,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277490225] [2022-04-06 08:57:27,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:57:27,548 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:57:27,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:57:27,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:57:27,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:57:27,548 INFO L87 Difference]: Start difference. First operand 256 states and 394 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:57:28,565 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:57:31,168 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:57:33,194 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 [] [2022-04-06 08:57:33,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:57:33,656 INFO L93 Difference]: Finished difference Result 365 states and 563 transitions. [2022-04-06 08:57:33,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:57:33,657 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 83 [2022-04-06 08:57:33,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:57:33,658 INFO L225 Difference]: With dead ends: 365 [2022-04-06 08:57:33,658 INFO L226 Difference]: Without dead ends: 365 [2022-04-06 08:57:33,658 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:57:33,659 INFO L913 BasicCegarLoop]: 137 mSDtfsCounter, 158 mSDsluCounter, 263 mSDsCounter, 0 mSdLazyCounter, 492 mSolverCounterSat, 63 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 400 SdHoareTripleChecker+Invalid, 557 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 492 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-04-06 08:57:33,659 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [158 Valid, 400 Invalid, 557 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 492 Invalid, 2 Unknown, 0 Unchecked, 6.1s Time] [2022-04-06 08:57:33,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 365 states. [2022-04-06 08:57:33,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 365 to 257. [2022-04-06 08:57:33,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 252 states have (on average 1.5436507936507937) internal successors, (389), 252 states have internal predecessors, (389), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:57:33,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 393 transitions. [2022-04-06 08:57:33,684 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 393 transitions. Word has length 83 [2022-04-06 08:57:33,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:57:33,685 INFO L478 AbstractCegarLoop]: Abstraction has 257 states and 393 transitions. [2022-04-06 08:57:33,685 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:57:33,685 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 393 transitions. [2022-04-06 08:57:33,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-04-06 08:57:33,686 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:57:33,686 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:57:33,686 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-04-06 08:57:33,686 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:57:33,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:57:33,687 INFO L85 PathProgramCache]: Analyzing trace with hash -1828775293, now seen corresponding path program 1 times [2022-04-06 08:57:33,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:57:33,687 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434186129] [2022-04-06 08:57:33,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:57:33,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:57:33,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:57:33,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:57:33,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:57:33,797 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 08:57:33,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:57:33,797 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434186129] [2022-04-06 08:57:33,797 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [434186129] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:57:33,797 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:57:33,797 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:57:33,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351935496] [2022-04-06 08:57:33,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:57:33,797 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:57:33,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:57:33,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:57:33,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:57:33,798 INFO L87 Difference]: Start difference. First operand 257 states and 393 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:57:35,727 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 [] [2022-04-06 08:57:37,751 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:57:40,479 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:57:40,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:57:40,932 INFO L93 Difference]: Finished difference Result 364 states and 559 transitions. [2022-04-06 08:57:40,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:57:40,932 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 83 [2022-04-06 08:57:40,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:57:40,933 INFO L225 Difference]: With dead ends: 364 [2022-04-06 08:57:40,933 INFO L226 Difference]: Without dead ends: 364 [2022-04-06 08:57:40,934 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:57:40,934 INFO L913 BasicCegarLoop]: 138 mSDtfsCounter, 156 mSDsluCounter, 264 mSDsCounter, 0 mSdLazyCounter, 490 mSolverCounterSat, 62 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 402 SdHoareTripleChecker+Invalid, 554 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 490 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2022-04-06 08:57:40,934 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [156 Valid, 402 Invalid, 554 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 490 Invalid, 2 Unknown, 0 Unchecked, 7.1s Time] [2022-04-06 08:57:40,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 364 states. [2022-04-06 08:57:40,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 364 to 258. [2022-04-06 08:57:40,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 253 states have (on average 1.533596837944664) internal successors, (388), 253 states have internal predecessors, (388), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:57:40,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 392 transitions. [2022-04-06 08:57:40,939 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 392 transitions. Word has length 83 [2022-04-06 08:57:40,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:57:40,939 INFO L478 AbstractCegarLoop]: Abstraction has 258 states and 392 transitions. [2022-04-06 08:57:40,939 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:57:40,939 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 392 transitions. [2022-04-06 08:57:40,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-04-06 08:57:40,940 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:57:40,940 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:57:40,940 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-04-06 08:57:40,940 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:57:40,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:57:40,940 INFO L85 PathProgramCache]: Analyzing trace with hash 1507291911, now seen corresponding path program 1 times [2022-04-06 08:57:40,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:57:40,940 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339373057] [2022-04-06 08:57:40,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:57:40,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:57:40,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:57:41,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:57:41,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:57:41,034 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-04-06 08:57:41,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:57:41,034 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1339373057] [2022-04-06 08:57:41,034 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1339373057] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:57:41,034 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:57:41,034 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:57:41,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912733444] [2022-04-06 08:57:41,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:57:41,035 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:57:41,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:57:41,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:57:41,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:57:41,036 INFO L87 Difference]: Start difference. First operand 258 states and 392 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:57:43,446 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:57:44,483 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:57:46,495 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 [] [2022-04-06 08:57:46,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:57:46,843 INFO L93 Difference]: Finished difference Result 270 states and 406 transitions. [2022-04-06 08:57:46,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:57:46,844 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 85 [2022-04-06 08:57:46,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:57:46,845 INFO L225 Difference]: With dead ends: 270 [2022-04-06 08:57:46,845 INFO L226 Difference]: Without dead ends: 270 [2022-04-06 08:57:46,845 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:57:46,845 INFO L913 BasicCegarLoop]: 245 mSDtfsCounter, 19 mSDsluCounter, 377 mSDsCounter, 0 mSdLazyCounter, 409 mSolverCounterSat, 9 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 622 SdHoareTripleChecker+Invalid, 420 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 409 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-04-06 08:57:46,846 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 622 Invalid, 420 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 409 Invalid, 2 Unknown, 0 Unchecked, 5.8s Time] [2022-04-06 08:57:46,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2022-04-06 08:57:46,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 258. [2022-04-06 08:57:46,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 253 states have (on average 1.5296442687747036) internal successors, (387), 253 states have internal predecessors, (387), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:57:46,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 391 transitions. [2022-04-06 08:57:46,849 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 391 transitions. Word has length 85 [2022-04-06 08:57:46,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:57:46,849 INFO L478 AbstractCegarLoop]: Abstraction has 258 states and 391 transitions. [2022-04-06 08:57:46,850 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:57:46,850 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 391 transitions. [2022-04-06 08:57:46,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-04-06 08:57:46,850 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:57:46,850 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:57:46,850 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-04-06 08:57:46,850 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:57:46,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:57:46,851 INFO L85 PathProgramCache]: Analyzing trace with hash -1916846855, now seen corresponding path program 1 times [2022-04-06 08:57:46,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:57:46,853 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609440879] [2022-04-06 08:57:46,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:57:46,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:57:46,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:57:46,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:57:46,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:57:46,967 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 08:57:46,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:57:46,967 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1609440879] [2022-04-06 08:57:46,967 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1609440879] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:57:46,967 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:57:46,967 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:57:46,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289176857] [2022-04-06 08:57:46,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:57:46,968 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:57:46,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:57:46,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:57:46,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:57:46,968 INFO L87 Difference]: Start difference. First operand 258 states and 391 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) [2022-04-06 08:57:49,965 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:57:51,987 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 [] [2022-04-06 08:57:52,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:57:52,813 INFO L93 Difference]: Finished difference Result 364 states and 554 transitions. [2022-04-06 08:57:52,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:57:52,814 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 86 [2022-04-06 08:57:52,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:57:52,815 INFO L225 Difference]: With dead ends: 364 [2022-04-06 08:57:52,815 INFO L226 Difference]: Without dead ends: 364 [2022-04-06 08:57:52,815 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:57:52,816 INFO L913 BasicCegarLoop]: 138 mSDtfsCounter, 159 mSDsluCounter, 264 mSDsCounter, 0 mSdLazyCounter, 490 mSolverCounterSat, 62 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 402 SdHoareTripleChecker+Invalid, 554 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 490 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-04-06 08:57:52,816 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 402 Invalid, 554 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 490 Invalid, 2 Unknown, 0 Unchecked, 5.8s Time] [2022-04-06 08:57:52,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 364 states. [2022-04-06 08:57:52,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 364 to 258. [2022-04-06 08:57:52,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 253 states have (on average 1.5138339920948616) internal successors, (383), 253 states have internal predecessors, (383), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:57:52,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 387 transitions. [2022-04-06 08:57:52,820 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 387 transitions. Word has length 86 [2022-04-06 08:57:52,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:57:52,820 INFO L478 AbstractCegarLoop]: Abstraction has 258 states and 387 transitions. [2022-04-06 08:57:52,820 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) [2022-04-06 08:57:52,820 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 387 transitions. [2022-04-06 08:57:52,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-04-06 08:57:52,821 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:57:52,821 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:57:52,821 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-04-06 08:57:52,821 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:57:52,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:57:52,821 INFO L85 PathProgramCache]: Analyzing trace with hash 397807451, now seen corresponding path program 1 times [2022-04-06 08:57:52,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:57:52,821 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655689617] [2022-04-06 08:57:52,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:57:52,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:57:52,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:57:52,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:57:52,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:57:52,912 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 08:57:52,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:57:52,912 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [655689617] [2022-04-06 08:57:52,912 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [655689617] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:57:52,912 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:57:52,912 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:57:52,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563705492] [2022-04-06 08:57:52,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:57:52,913 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:57:52,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:57:52,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:57:52,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:57:52,913 INFO L87 Difference]: Start difference. First operand 258 states and 387 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) [2022-04-06 08:57:54,542 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:57:56,224 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:57:58,247 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:58:00,275 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 [] [2022-04-06 08:58:00,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:58:00,746 INFO L93 Difference]: Finished difference Result 354 states and 537 transitions. [2022-04-06 08:58:00,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:58:00,746 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 87 [2022-04-06 08:58:00,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:58:00,747 INFO L225 Difference]: With dead ends: 354 [2022-04-06 08:58:00,747 INFO L226 Difference]: Without dead ends: 354 [2022-04-06 08:58:00,748 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:58:00,748 INFO L913 BasicCegarLoop]: 148 mSDtfsCounter, 150 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 479 mSolverCounterSat, 55 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 422 SdHoareTripleChecker+Invalid, 536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 479 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2022-04-06 08:58:00,748 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [150 Valid, 422 Invalid, 536 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 479 Invalid, 2 Unknown, 0 Unchecked, 7.8s Time] [2022-04-06 08:58:00,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2022-04-06 08:58:00,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 258. [2022-04-06 08:58:00,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 253 states have (on average 1.4980237154150198) internal successors, (379), 253 states have internal predecessors, (379), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:58:00,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 383 transitions. [2022-04-06 08:58:00,752 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 383 transitions. Word has length 87 [2022-04-06 08:58:00,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:58:00,753 INFO L478 AbstractCegarLoop]: Abstraction has 258 states and 383 transitions. [2022-04-06 08:58:00,753 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) [2022-04-06 08:58:00,753 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 383 transitions. [2022-04-06 08:58:00,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-04-06 08:58:00,754 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:58:00,754 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:58:00,754 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-04-06 08:58:00,754 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:58:00,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:58:00,755 INFO L85 PathProgramCache]: Analyzing trace with hash -903497846, now seen corresponding path program 1 times [2022-04-06 08:58:00,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:58:00,755 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941691285] [2022-04-06 08:58:00,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:58:00,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:58:00,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:58:00,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:58:00,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:58:00,883 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-04-06 08:58:00,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:58:00,883 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941691285] [2022-04-06 08:58:00,883 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1941691285] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:58:00,883 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:58:00,883 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:58:00,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378525971] [2022-04-06 08:58:00,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:58:00,884 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:58:00,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:58:00,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:58:00,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:58:00,884 INFO L87 Difference]: Start difference. First operand 258 states and 383 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:58:02,892 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:58:03,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:58:03,302 INFO L93 Difference]: Finished difference Result 349 states and 522 transitions. [2022-04-06 08:58:03,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:58:03,302 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 91 [2022-04-06 08:58:03,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:58:03,304 INFO L225 Difference]: With dead ends: 349 [2022-04-06 08:58:03,304 INFO L226 Difference]: Without dead ends: 349 [2022-04-06 08:58:03,304 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:58:03,304 INFO L913 BasicCegarLoop]: 202 mSDtfsCounter, 81 mSDsluCounter, 335 mSDsCounter, 0 mSdLazyCounter, 511 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 537 SdHoareTripleChecker+Invalid, 521 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 511 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-06 08:58:03,304 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [81 Valid, 537 Invalid, 521 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 511 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-04-06 08:58:03,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2022-04-06 08:58:03,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 300. [2022-04-06 08:58:03,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 300 states, 295 states have (on average 1.511864406779661) internal successors, (446), 295 states have internal predecessors, (446), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:58:03,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 450 transitions. [2022-04-06 08:58:03,309 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 450 transitions. Word has length 91 [2022-04-06 08:58:03,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:58:03,309 INFO L478 AbstractCegarLoop]: Abstraction has 300 states and 450 transitions. [2022-04-06 08:58:03,309 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:58:03,309 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 450 transitions. [2022-04-06 08:58:03,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-04-06 08:58:03,310 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:58:03,310 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:58:03,310 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-04-06 08:58:03,310 INFO L403 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:58:03,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:58:03,310 INFO L85 PathProgramCache]: Analyzing trace with hash -1352194485, now seen corresponding path program 1 times [2022-04-06 08:58:03,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:58:03,310 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39611295] [2022-04-06 08:58:03,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:58:03,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:58:03,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:58:03,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:58:03,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:58:03,403 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-04-06 08:58:03,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:58:03,403 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [39611295] [2022-04-06 08:58:03,403 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [39611295] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:58:03,403 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:58:03,403 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:58:03,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356410356] [2022-04-06 08:58:03,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:58:03,403 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:58:03,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:58:03,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:58:03,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:58:03,404 INFO L87 Difference]: Start difference. First operand 300 states and 450 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:58:05,092 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:58:07,116 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:58:09,140 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 [] [2022-04-06 08:58:10,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:58:10,317 INFO L93 Difference]: Finished difference Result 396 states and 603 transitions. [2022-04-06 08:58:10,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:58:10,317 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 91 [2022-04-06 08:58:10,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:58:10,319 INFO L225 Difference]: With dead ends: 396 [2022-04-06 08:58:10,319 INFO L226 Difference]: Without dead ends: 396 [2022-04-06 08:58:10,319 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:58:10,319 INFO L913 BasicCegarLoop]: 161 mSDtfsCounter, 124 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 492 mSolverCounterSat, 52 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 448 SdHoareTripleChecker+Invalid, 546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 492 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2022-04-06 08:58:10,319 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [124 Valid, 448 Invalid, 546 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 492 Invalid, 2 Unknown, 0 Unchecked, 6.9s Time] [2022-04-06 08:58:10,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 396 states. [2022-04-06 08:58:10,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 396 to 280. [2022-04-06 08:58:10,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 280 states, 275 states have (on average 1.5345454545454544) internal successors, (422), 275 states have internal predecessors, (422), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:58:10,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 426 transitions. [2022-04-06 08:58:10,323 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 426 transitions. Word has length 91 [2022-04-06 08:58:10,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:58:10,323 INFO L478 AbstractCegarLoop]: Abstraction has 280 states and 426 transitions. [2022-04-06 08:58:10,323 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:58:10,324 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 426 transitions. [2022-04-06 08:58:10,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-04-06 08:58:10,324 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:58:10,324 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:58:10,324 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-04-06 08:58:10,324 INFO L403 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:58:10,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:58:10,325 INFO L85 PathProgramCache]: Analyzing trace with hash 1815101343, now seen corresponding path program 1 times [2022-04-06 08:58:10,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:58:10,325 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477026804] [2022-04-06 08:58:10,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:58:10,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:58:10,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:58:10,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:58:10,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:58:10,436 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-04-06 08:58:10,436 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:58:10,436 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477026804] [2022-04-06 08:58:10,436 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [477026804] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:58:10,436 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:58:10,436 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:58:10,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040121320] [2022-04-06 08:58:10,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:58:10,436 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:58:10,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:58:10,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:58:10,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:58:10,437 INFO L87 Difference]: Start difference. First operand 280 states and 426 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) [2022-04-06 08:58:13,391 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 [] [2022-04-06 08:58:15,415 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 [] [2022-04-06 08:58:16,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:58:16,359 INFO L93 Difference]: Finished difference Result 430 states and 660 transitions. [2022-04-06 08:58:16,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:58:16,359 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 119 [2022-04-06 08:58:16,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:58:16,360 INFO L225 Difference]: With dead ends: 430 [2022-04-06 08:58:16,360 INFO L226 Difference]: Without dead ends: 430 [2022-04-06 08:58:16,360 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:58:16,361 INFO L913 BasicCegarLoop]: 153 mSDtfsCounter, 130 mSDsluCounter, 279 mSDsCounter, 0 mSdLazyCounter, 474 mSolverCounterSat, 42 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 432 SdHoareTripleChecker+Invalid, 518 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 474 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-04-06 08:58:16,361 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [130 Valid, 432 Invalid, 518 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 474 Invalid, 2 Unknown, 0 Unchecked, 5.9s Time] [2022-04-06 08:58:16,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 430 states. [2022-04-06 08:58:16,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 430 to 344. [2022-04-06 08:58:16,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 344 states, 339 states have (on average 1.5398230088495575) internal successors, (522), 339 states have internal predecessors, (522), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:58:16,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 526 transitions. [2022-04-06 08:58:16,366 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 526 transitions. Word has length 119 [2022-04-06 08:58:16,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:58:16,367 INFO L478 AbstractCegarLoop]: Abstraction has 344 states and 526 transitions. [2022-04-06 08:58:16,367 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) [2022-04-06 08:58:16,367 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 526 transitions. [2022-04-06 08:58:16,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2022-04-06 08:58:16,368 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:58:16,368 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:58:16,368 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-04-06 08:58:16,368 INFO L403 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:58:16,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:58:16,368 INFO L85 PathProgramCache]: Analyzing trace with hash 1973991093, now seen corresponding path program 1 times [2022-04-06 08:58:16,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:58:16,368 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612574734] [2022-04-06 08:58:16,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:58:16,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:58:16,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:58:16,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:58:16,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:58:16,474 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-04-06 08:58:16,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:58:16,474 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612574734] [2022-04-06 08:58:16,474 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [612574734] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:58:16,474 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:58:16,474 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:58:16,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245202055] [2022-04-06 08:58:16,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:58:16,475 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:58:16,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:58:16,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:58:16,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:58:16,476 INFO L87 Difference]: Start difference. First operand 344 states and 526 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) [2022-04-06 08:58:19,614 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 [] [2022-04-06 08:58:21,169 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:58:21,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:58:21,548 INFO L93 Difference]: Finished difference Result 432 states and 659 transitions. [2022-04-06 08:58:21,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:58:21,549 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 125 [2022-04-06 08:58:21,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:58:21,550 INFO L225 Difference]: With dead ends: 432 [2022-04-06 08:58:21,550 INFO L226 Difference]: Without dead ends: 432 [2022-04-06 08:58:21,550 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:58:21,551 INFO L913 BasicCegarLoop]: 209 mSDtfsCounter, 81 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 513 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 551 SdHoareTripleChecker+Invalid, 521 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 513 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-04-06 08:58:21,551 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [81 Valid, 551 Invalid, 521 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 513 Invalid, 1 Unknown, 0 Unchecked, 5.1s Time] [2022-04-06 08:58:21,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 432 states. [2022-04-06 08:58:21,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 432 to 383. [2022-04-06 08:58:21,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 383 states, 378 states have (on average 1.5423280423280423) internal successors, (583), 378 states have internal predecessors, (583), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:58:21,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 587 transitions. [2022-04-06 08:58:21,555 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 587 transitions. Word has length 125 [2022-04-06 08:58:21,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:58:21,556 INFO L478 AbstractCegarLoop]: Abstraction has 383 states and 587 transitions. [2022-04-06 08:58:21,556 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) [2022-04-06 08:58:21,556 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 587 transitions. [2022-04-06 08:58:21,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2022-04-06 08:58:21,557 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:58:21,557 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:58:21,557 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-04-06 08:58:21,557 INFO L403 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:58:21,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:58:21,557 INFO L85 PathProgramCache]: Analyzing trace with hash 1987523894, now seen corresponding path program 1 times [2022-04-06 08:58:21,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:58:21,557 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296036136] [2022-04-06 08:58:21,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:58:21,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:58:21,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:58:21,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:58:21,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:58:21,654 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-04-06 08:58:21,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:58:21,654 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [296036136] [2022-04-06 08:58:21,654 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [296036136] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:58:21,654 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:58:21,655 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:58:21,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427525785] [2022-04-06 08:58:21,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:58:21,655 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:58:21,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:58:21,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:58:21,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:58:21,656 INFO L87 Difference]: Start difference. First operand 383 states and 587 transitions. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:58:24,115 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:58:25,687 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:58:26,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:58:26,621 INFO L93 Difference]: Finished difference Result 419 states and 638 transitions. [2022-04-06 08:58:26,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:58:26,621 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 125 [2022-04-06 08:58:26,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:58:26,623 INFO L225 Difference]: With dead ends: 419 [2022-04-06 08:58:26,623 INFO L226 Difference]: Without dead ends: 419 [2022-04-06 08:58:26,623 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:58:26,623 INFO L913 BasicCegarLoop]: 255 mSDtfsCounter, 27 mSDsluCounter, 386 mSDsCounter, 0 mSdLazyCounter, 444 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 641 SdHoareTripleChecker+Invalid, 450 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 444 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-04-06 08:58:26,623 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [27 Valid, 641 Invalid, 450 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 444 Invalid, 1 Unknown, 0 Unchecked, 5.0s Time] [2022-04-06 08:58:26,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 419 states. [2022-04-06 08:58:26,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 419 to 407. [2022-04-06 08:58:26,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 407 states, 402 states have (on average 1.5348258706467661) internal successors, (617), 402 states have internal predecessors, (617), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:58:26,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 407 states to 407 states and 621 transitions. [2022-04-06 08:58:26,629 INFO L78 Accepts]: Start accepts. Automaton has 407 states and 621 transitions. Word has length 125 [2022-04-06 08:58:26,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:58:26,629 INFO L478 AbstractCegarLoop]: Abstraction has 407 states and 621 transitions. [2022-04-06 08:58:26,629 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:58:26,629 INFO L276 IsEmpty]: Start isEmpty. Operand 407 states and 621 transitions. [2022-04-06 08:58:26,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-04-06 08:58:26,630 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:58:26,630 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:58:26,631 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-04-06 08:58:26,631 INFO L403 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:58:26,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:58:26,631 INFO L85 PathProgramCache]: Analyzing trace with hash 1106583750, now seen corresponding path program 1 times [2022-04-06 08:58:26,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:58:26,631 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749615309] [2022-04-06 08:58:26,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:58:26,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:58:26,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:58:26,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:58:26,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:58:26,747 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-04-06 08:58:26,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:58:26,747 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1749615309] [2022-04-06 08:58:26,747 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1749615309] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:58:26,747 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:58:26,747 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:58:26,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575823613] [2022-04-06 08:58:26,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:58:26,747 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:58:26,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:58:26,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:58:26,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:58:26,748 INFO L87 Difference]: Start difference. First operand 407 states and 621 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) [2022-04-06 08:58:29,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:58:29,443 INFO L93 Difference]: Finished difference Result 481 states and 729 transitions. [2022-04-06 08:58:29,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:58:29,444 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 126 [2022-04-06 08:58:29,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:58:29,445 INFO L225 Difference]: With dead ends: 481 [2022-04-06 08:58:29,445 INFO L226 Difference]: Without dead ends: 481 [2022-04-06 08:58:29,445 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:58:29,446 INFO L913 BasicCegarLoop]: 147 mSDtfsCounter, 125 mSDsluCounter, 273 mSDsCounter, 0 mSdLazyCounter, 480 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 420 SdHoareTripleChecker+Invalid, 534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 480 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-04-06 08:58:29,446 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [125 Valid, 420 Invalid, 534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 480 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-04-06 08:58:29,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2022-04-06 08:58:29,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 407. [2022-04-06 08:58:29,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 407 states, 402 states have (on average 1.5298507462686568) internal successors, (615), 402 states have internal predecessors, (615), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:58:29,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 407 states to 407 states and 619 transitions. [2022-04-06 08:58:29,450 INFO L78 Accepts]: Start accepts. Automaton has 407 states and 619 transitions. Word has length 126 [2022-04-06 08:58:29,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:58:29,450 INFO L478 AbstractCegarLoop]: Abstraction has 407 states and 619 transitions. [2022-04-06 08:58:29,451 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) [2022-04-06 08:58:29,451 INFO L276 IsEmpty]: Start isEmpty. Operand 407 states and 619 transitions. [2022-04-06 08:58:29,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-04-06 08:58:29,451 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:58:29,451 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:58:29,452 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-04-06 08:58:29,452 INFO L403 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:58:29,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:58:29,452 INFO L85 PathProgramCache]: Analyzing trace with hash 1496750099, now seen corresponding path program 1 times [2022-04-06 08:58:29,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:58:29,452 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940288034] [2022-04-06 08:58:29,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:58:29,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:58:29,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:58:29,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:58:29,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:58:29,544 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-04-06 08:58:29,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:58:29,544 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1940288034] [2022-04-06 08:58:29,544 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1940288034] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:58:29,544 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:58:29,544 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:58:29,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727717370] [2022-04-06 08:58:29,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:58:29,545 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:58:29,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:58:29,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:58:29,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:58:29,545 INFO L87 Difference]: Start difference. First operand 407 states and 619 transitions. Second operand has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:58:30,578 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 [] [2022-04-06 08:58:31,784 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:58:33,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:58:33,298 INFO L93 Difference]: Finished difference Result 521 states and 791 transitions. [2022-04-06 08:58:33,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:58:33,299 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 133 [2022-04-06 08:58:33,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:58:33,300 INFO L225 Difference]: With dead ends: 521 [2022-04-06 08:58:33,300 INFO L226 Difference]: Without dead ends: 521 [2022-04-06 08:58:33,300 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:58:33,301 INFO L913 BasicCegarLoop]: 147 mSDtfsCounter, 118 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 481 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 421 SdHoareTripleChecker+Invalid, 534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 481 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-04-06 08:58:33,301 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [118 Valid, 421 Invalid, 534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 481 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-04-06 08:58:33,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 521 states. [2022-04-06 08:58:33,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 521 to 450. [2022-04-06 08:58:33,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 450 states, 445 states have (on average 1.5348314606741573) internal successors, (683), 445 states have internal predecessors, (683), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:58:33,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 450 states to 450 states and 687 transitions. [2022-04-06 08:58:33,306 INFO L78 Accepts]: Start accepts. Automaton has 450 states and 687 transitions. Word has length 133 [2022-04-06 08:58:33,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:58:33,306 INFO L478 AbstractCegarLoop]: Abstraction has 450 states and 687 transitions. [2022-04-06 08:58:33,306 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:58:33,306 INFO L276 IsEmpty]: Start isEmpty. Operand 450 states and 687 transitions. [2022-04-06 08:58:33,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-04-06 08:58:33,310 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:58:33,310 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:58:33,310 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-04-06 08:58:33,310 INFO L403 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:58:33,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:58:33,311 INFO L85 PathProgramCache]: Analyzing trace with hash -1613379998, now seen corresponding path program 1 times [2022-04-06 08:58:33,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:58:33,311 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825379146] [2022-04-06 08:58:33,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:58:33,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:58:33,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:58:33,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:58:33,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:58:33,442 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-04-06 08:58:33,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:58:33,442 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825379146] [2022-04-06 08:58:33,442 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1825379146] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:58:33,442 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:58:33,442 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:58:33,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545507147] [2022-04-06 08:58:33,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:58:33,443 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:58:33,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:58:33,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:58:33,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:58:33,443 INFO L87 Difference]: Start difference. First operand 450 states and 687 transitions. Second operand has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:58:35,821 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 [] [2022-04-06 08:58:38,418 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 [] [2022-04-06 08:58:38,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:58:38,849 INFO L93 Difference]: Finished difference Result 488 states and 740 transitions. [2022-04-06 08:58:38,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:58:38,849 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 134 [2022-04-06 08:58:38,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:58:38,851 INFO L225 Difference]: With dead ends: 488 [2022-04-06 08:58:38,851 INFO L226 Difference]: Without dead ends: 488 [2022-04-06 08:58:38,851 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:58:38,851 INFO L913 BasicCegarLoop]: 209 mSDtfsCounter, 60 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 499 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 551 SdHoareTripleChecker+Invalid, 508 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 499 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-04-06 08:58:38,852 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [60 Valid, 551 Invalid, 508 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 499 Invalid, 2 Unknown, 0 Unchecked, 5.4s Time] [2022-04-06 08:58:38,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 488 states. [2022-04-06 08:58:38,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 488 to 454. [2022-04-06 08:58:38,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 454 states, 449 states have (on average 1.530066815144766) internal successors, (687), 449 states have internal predecessors, (687), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:58:38,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 454 states to 454 states and 691 transitions. [2022-04-06 08:58:38,857 INFO L78 Accepts]: Start accepts. Automaton has 454 states and 691 transitions. Word has length 134 [2022-04-06 08:58:38,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:58:38,857 INFO L478 AbstractCegarLoop]: Abstraction has 454 states and 691 transitions. [2022-04-06 08:58:38,857 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:58:38,857 INFO L276 IsEmpty]: Start isEmpty. Operand 454 states and 691 transitions. [2022-04-06 08:58:38,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-04-06 08:58:38,858 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:58:38,859 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:58:38,859 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-04-06 08:58:38,859 INFO L403 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:58:38,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:58:38,859 INFO L85 PathProgramCache]: Analyzing trace with hash -237089050, now seen corresponding path program 1 times [2022-04-06 08:58:38,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:58:38,859 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479396382] [2022-04-06 08:58:38,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:58:38,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:58:38,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:58:38,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:58:38,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:58:38,987 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 134 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-04-06 08:58:38,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:58:38,987 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479396382] [2022-04-06 08:58:38,987 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1479396382] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:58:38,987 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:58:38,987 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:58:38,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658584754] [2022-04-06 08:58:38,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:58:38,988 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:58:38,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:58:38,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:58:38,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:58:38,988 INFO L87 Difference]: Start difference. First operand 454 states and 691 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) [2022-04-06 08:58:42,258 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:58:43,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:58:43,353 INFO L93 Difference]: Finished difference Result 571 states and 863 transitions. [2022-04-06 08:58:43,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:58:43,353 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 146 [2022-04-06 08:58:43,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:58:43,355 INFO L225 Difference]: With dead ends: 571 [2022-04-06 08:58:43,355 INFO L226 Difference]: Without dead ends: 571 [2022-04-06 08:58:43,355 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:58:43,355 INFO L913 BasicCegarLoop]: 161 mSDtfsCounter, 132 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 448 SdHoareTripleChecker+Invalid, 543 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-04-06 08:58:43,355 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [132 Valid, 448 Invalid, 543 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 497 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2022-04-06 08:58:43,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 571 states. [2022-04-06 08:58:43,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 571 to 484. [2022-04-06 08:58:43,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 484 states, 479 states have (on average 1.5198329853862214) internal successors, (728), 479 states have internal predecessors, (728), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:58:43,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484 states to 484 states and 732 transitions. [2022-04-06 08:58:43,361 INFO L78 Accepts]: Start accepts. Automaton has 484 states and 732 transitions. Word has length 146 [2022-04-06 08:58:43,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:58:43,361 INFO L478 AbstractCegarLoop]: Abstraction has 484 states and 732 transitions. [2022-04-06 08:58:43,361 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) [2022-04-06 08:58:43,361 INFO L276 IsEmpty]: Start isEmpty. Operand 484 states and 732 transitions. [2022-04-06 08:58:43,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-04-06 08:58:43,362 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:58:43,362 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:58:43,362 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-04-06 08:58:43,362 INFO L403 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:58:43,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:58:43,362 INFO L85 PathProgramCache]: Analyzing trace with hash -1919103288, now seen corresponding path program 1 times [2022-04-06 08:58:43,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:58:43,363 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047965428] [2022-04-06 08:58:43,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:58:43,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:58:43,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:58:43,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:58:43,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:58:43,483 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 136 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-04-06 08:58:43,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:58:43,483 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047965428] [2022-04-06 08:58:43,484 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1047965428] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:58:43,484 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:58:43,484 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:58:43,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531293397] [2022-04-06 08:58:43,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:58:43,485 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:58:43,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:58:43,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:58:43,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:58:43,489 INFO L87 Difference]: Start difference. First operand 484 states and 732 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) [2022-04-06 08:58:45,022 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:58:47,041 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:58:48,103 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 [] [2022-04-06 08:58:49,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:58:49,413 INFO L93 Difference]: Finished difference Result 516 states and 778 transitions. [2022-04-06 08:58:49,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:58:49,414 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 147 [2022-04-06 08:58:49,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:58:49,415 INFO L225 Difference]: With dead ends: 516 [2022-04-06 08:58:49,415 INFO L226 Difference]: Without dead ends: 516 [2022-04-06 08:58:49,416 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:58:49,416 INFO L913 BasicCegarLoop]: 211 mSDtfsCounter, 67 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 496 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 555 SdHoareTripleChecker+Invalid, 504 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 496 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-04-06 08:58:49,416 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [67 Valid, 555 Invalid, 504 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 496 Invalid, 1 Unknown, 0 Unchecked, 5.9s Time] [2022-04-06 08:58:49,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 516 states. [2022-04-06 08:58:49,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 516 to 484. [2022-04-06 08:58:49,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 484 states, 479 states have (on average 1.5177453027139876) internal successors, (727), 479 states have internal predecessors, (727), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:58:49,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484 states to 484 states and 731 transitions. [2022-04-06 08:58:49,421 INFO L78 Accepts]: Start accepts. Automaton has 484 states and 731 transitions. Word has length 147 [2022-04-06 08:58:49,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:58:49,421 INFO L478 AbstractCegarLoop]: Abstraction has 484 states and 731 transitions. [2022-04-06 08:58:49,421 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) [2022-04-06 08:58:49,422 INFO L276 IsEmpty]: Start isEmpty. Operand 484 states and 731 transitions. [2022-04-06 08:58:49,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-04-06 08:58:49,422 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:58:49,423 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:58:49,423 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-04-06 08:58:49,423 INFO L403 AbstractCegarLoop]: === Iteration 27 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:58:49,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:58:49,423 INFO L85 PathProgramCache]: Analyzing trace with hash -1108517993, now seen corresponding path program 1 times [2022-04-06 08:58:49,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:58:49,423 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894932260] [2022-04-06 08:58:49,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:58:49,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:58:49,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:58:49,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:58:49,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:58:49,519 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 122 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-04-06 08:58:49,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:58:49,519 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894932260] [2022-04-06 08:58:49,519 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1894932260] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:58:49,520 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:58:49,520 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:58:49,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717636494] [2022-04-06 08:58:49,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:58:49,520 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:58:49,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:58:49,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:58:49,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:58:49,520 INFO L87 Difference]: Start difference. First operand 484 states and 731 transitions. Second operand has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:58:51,883 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:58:53,162 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:58:54,530 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:58:54,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:58:54,929 INFO L93 Difference]: Finished difference Result 516 states and 777 transitions. [2022-04-06 08:58:54,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:58:54,930 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 147 [2022-04-06 08:58:54,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:58:54,932 INFO L225 Difference]: With dead ends: 516 [2022-04-06 08:58:54,932 INFO L226 Difference]: Without dead ends: 516 [2022-04-06 08:58:54,932 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:58:54,932 INFO L913 BasicCegarLoop]: 218 mSDtfsCounter, 73 mSDsluCounter, 351 mSDsCounter, 0 mSdLazyCounter, 505 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 569 SdHoareTripleChecker+Invalid, 512 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 505 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-04-06 08:58:54,932 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [73 Valid, 569 Invalid, 512 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 505 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2022-04-06 08:58:54,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 516 states. [2022-04-06 08:58:54,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 516 to 484. [2022-04-06 08:58:54,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 484 states, 479 states have (on average 1.5156576200417538) internal successors, (726), 479 states have internal predecessors, (726), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:58:54,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484 states to 484 states and 730 transitions. [2022-04-06 08:58:54,939 INFO L78 Accepts]: Start accepts. Automaton has 484 states and 730 transitions. Word has length 147 [2022-04-06 08:58:54,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:58:54,939 INFO L478 AbstractCegarLoop]: Abstraction has 484 states and 730 transitions. [2022-04-06 08:58:54,939 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:58:54,939 INFO L276 IsEmpty]: Start isEmpty. Operand 484 states and 730 transitions. [2022-04-06 08:58:54,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-04-06 08:58:54,941 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:58:54,941 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:58:54,941 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-04-06 08:58:54,941 INFO L403 AbstractCegarLoop]: === Iteration 28 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:58:54,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:58:54,941 INFO L85 PathProgramCache]: Analyzing trace with hash -592997544, now seen corresponding path program 1 times [2022-04-06 08:58:54,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:58:54,942 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1747184003] [2022-04-06 08:58:54,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:58:54,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:58:55,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:58:55,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:58:55,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:58:55,058 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 135 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-04-06 08:58:55,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:58:55,058 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1747184003] [2022-04-06 08:58:55,058 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1747184003] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:58:55,058 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:58:55,058 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-06 08:58:55,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264136631] [2022-04-06 08:58:55,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:58:55,059 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 08:58:55,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:58:55,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 08:58:55,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 08:58:55,059 INFO L87 Difference]: Start difference. First operand 484 states and 730 transitions. Second operand has 4 states, 4 states have (on average 28.75) internal successors, (115), 3 states have internal predecessors, (115), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:58:56,730 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:58:58,752 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:59:00,777 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 [] [2022-04-06 08:59:01,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:59:01,092 INFO L93 Difference]: Finished difference Result 939 states and 1409 transitions. [2022-04-06 08:59:01,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 08:59:01,092 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.75) internal successors, (115), 3 states have internal predecessors, (115), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 147 [2022-04-06 08:59:01,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:59:01,095 INFO L225 Difference]: With dead ends: 939 [2022-04-06 08:59:01,095 INFO L226 Difference]: Without dead ends: 939 [2022-04-06 08:59:01,095 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 08:59:01,095 INFO L913 BasicCegarLoop]: 257 mSDtfsCounter, 152 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 334 mSolverCounterSat, 20 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 451 SdHoareTripleChecker+Invalid, 356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 334 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-04-06 08:59:01,096 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [152 Valid, 451 Invalid, 356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 334 Invalid, 2 Unknown, 0 Unchecked, 6.0s Time] [2022-04-06 08:59:01,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 939 states. [2022-04-06 08:59:01,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 939 to 939. [2022-04-06 08:59:01,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 939 states, 934 states have (on average 1.5042826552462527) internal successors, (1405), 934 states have internal predecessors, (1405), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:59:01,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 939 states to 939 states and 1409 transitions. [2022-04-06 08:59:01,104 INFO L78 Accepts]: Start accepts. Automaton has 939 states and 1409 transitions. Word has length 147 [2022-04-06 08:59:01,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:59:01,105 INFO L478 AbstractCegarLoop]: Abstraction has 939 states and 1409 transitions. [2022-04-06 08:59:01,105 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.75) internal successors, (115), 3 states have internal predecessors, (115), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:59:01,105 INFO L276 IsEmpty]: Start isEmpty. Operand 939 states and 1409 transitions. [2022-04-06 08:59:01,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-04-06 08:59:01,106 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:59:01,106 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:59:01,107 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-04-06 08:59:01,107 INFO L403 AbstractCegarLoop]: === Iteration 29 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:59:01,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:59:01,107 INFO L85 PathProgramCache]: Analyzing trace with hash 900914905, now seen corresponding path program 1 times [2022-04-06 08:59:01,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:59:01,107 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150543843] [2022-04-06 08:59:01,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:59:01,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:59:01,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:59:01,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:59:01,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:59:01,189 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2022-04-06 08:59:01,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:59:01,189 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150543843] [2022-04-06 08:59:01,189 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1150543843] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:59:01,189 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:59:01,189 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-06 08:59:01,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021227869] [2022-04-06 08:59:01,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:59:01,190 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 08:59:01,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:59:01,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 08:59:01,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 08:59:01,191 INFO L87 Difference]: Start difference. First operand 939 states and 1409 transitions. Second operand has 4 states, 4 states have (on average 23.5) internal successors, (94), 3 states have internal predecessors, (94), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:59:03,203 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:59:03,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:59:03,447 INFO L93 Difference]: Finished difference Result 966 states and 1444 transitions. [2022-04-06 08:59:03,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 08:59:03,447 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 3 states have internal predecessors, (94), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 147 [2022-04-06 08:59:03,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:59:03,449 INFO L225 Difference]: With dead ends: 966 [2022-04-06 08:59:03,450 INFO L226 Difference]: Without dead ends: 966 [2022-04-06 08:59:03,450 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 08:59:03,450 INFO L913 BasicCegarLoop]: 241 mSDtfsCounter, 15 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 283 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 435 SdHoareTripleChecker+Invalid, 287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 283 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-04-06 08:59:03,450 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 435 Invalid, 287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 283 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2022-04-06 08:59:03,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 966 states. [2022-04-06 08:59:03,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 966 to 966. [2022-04-06 08:59:03,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 966 states, 961 states have (on average 1.4984391259105099) internal successors, (1440), 961 states have internal predecessors, (1440), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:59:03,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 966 states to 966 states and 1444 transitions. [2022-04-06 08:59:03,461 INFO L78 Accepts]: Start accepts. Automaton has 966 states and 1444 transitions. Word has length 147 [2022-04-06 08:59:03,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:59:03,461 INFO L478 AbstractCegarLoop]: Abstraction has 966 states and 1444 transitions. [2022-04-06 08:59:03,461 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 3 states have internal predecessors, (94), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:59:03,461 INFO L276 IsEmpty]: Start isEmpty. Operand 966 states and 1444 transitions. [2022-04-06 08:59:03,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-04-06 08:59:03,463 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:59:03,463 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:59:03,463 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-04-06 08:59:03,464 INFO L403 AbstractCegarLoop]: === Iteration 30 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:59:03,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:59:03,464 INFO L85 PathProgramCache]: Analyzing trace with hash -1002545190, now seen corresponding path program 1 times [2022-04-06 08:59:03,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:59:03,464 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128698643] [2022-04-06 08:59:03,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:59:03,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:59:03,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:59:03,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:59:03,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:59:03,575 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2022-04-06 08:59:03,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:59:03,575 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2128698643] [2022-04-06 08:59:03,576 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2128698643] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:59:03,576 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:59:03,576 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-06 08:59:03,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028373448] [2022-04-06 08:59:03,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:59:03,576 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 08:59:03,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:59:03,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 08:59:03,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 08:59:03,576 INFO L87 Difference]: Start difference. First operand 966 states and 1444 transitions. Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 3 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:59:05,619 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:59:05,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:59:05,864 INFO L93 Difference]: Finished difference Result 968 states and 1446 transitions. [2022-04-06 08:59:05,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 08:59:05,865 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 3 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 147 [2022-04-06 08:59:05,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:59:05,867 INFO L225 Difference]: With dead ends: 968 [2022-04-06 08:59:05,867 INFO L226 Difference]: Without dead ends: 968 [2022-04-06 08:59:05,867 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 08:59:05,868 INFO L913 BasicCegarLoop]: 229 mSDtfsCounter, 4 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 272 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 414 SdHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-04-06 08:59:05,868 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 414 Invalid, 274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 272 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-04-06 08:59:05,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 968 states. [2022-04-06 08:59:05,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 968 to 968. [2022-04-06 08:59:05,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 968 states, 963 states have (on average 1.497403946002077) internal successors, (1442), 963 states have internal predecessors, (1442), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:59:05,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 968 states to 968 states and 1446 transitions. [2022-04-06 08:59:05,887 INFO L78 Accepts]: Start accepts. Automaton has 968 states and 1446 transitions. Word has length 147 [2022-04-06 08:59:05,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:59:05,887 INFO L478 AbstractCegarLoop]: Abstraction has 968 states and 1446 transitions. [2022-04-06 08:59:05,888 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 3 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:59:05,888 INFO L276 IsEmpty]: Start isEmpty. Operand 968 states and 1446 transitions. [2022-04-06 08:59:05,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-04-06 08:59:05,889 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:59:05,889 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-04-06 08:59:05,890 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-04-06 08:59:05,890 INFO L403 AbstractCegarLoop]: === Iteration 31 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:59:05,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:59:05,890 INFO L85 PathProgramCache]: Analyzing trace with hash 2123088927, now seen corresponding path program 1 times [2022-04-06 08:59:05,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:59:05,890 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992152188] [2022-04-06 08:59:05,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:59:05,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:59:05,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:59:05,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:59:05,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:59:05,984 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 126 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-04-06 08:59:05,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:59:05,984 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [992152188] [2022-04-06 08:59:05,984 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [992152188] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:59:05,984 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:59:05,984 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-06 08:59:05,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320259008] [2022-04-06 08:59:05,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:59:05,984 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 08:59:05,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:59:05,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 08:59:05,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 08:59:05,985 INFO L87 Difference]: Start difference. First operand 968 states and 1446 transitions. Second operand has 4 states, 4 states have (on average 29.75) internal successors, (119), 3 states have internal predecessors, (119), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:59:07,431 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:59:09,453 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 [] [2022-04-06 08:59:10,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:59:10,623 INFO L93 Difference]: Finished difference Result 1423 states and 2125 transitions. [2022-04-06 08:59:10,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 08:59:10,623 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.75) internal successors, (119), 3 states have internal predecessors, (119), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 149 [2022-04-06 08:59:10,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:59:10,626 INFO L225 Difference]: With dead ends: 1423 [2022-04-06 08:59:10,626 INFO L226 Difference]: Without dead ends: 1423 [2022-04-06 08:59:10,627 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 08:59:10,627 INFO L913 BasicCegarLoop]: 401 mSDtfsCounter, 157 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 479 mSolverCounterSat, 20 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 595 SdHoareTripleChecker+Invalid, 500 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 479 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-04-06 08:59:10,627 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [157 Valid, 595 Invalid, 500 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 479 Invalid, 1 Unknown, 0 Unchecked, 4.6s Time] [2022-04-06 08:59:10,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1423 states. [2022-04-06 08:59:10,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1423 to 1423. [2022-04-06 08:59:10,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1423 states, 1418 states have (on average 1.495768688293371) internal successors, (2121), 1418 states have internal predecessors, (2121), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:59:10,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1423 states to 1423 states and 2125 transitions. [2022-04-06 08:59:10,639 INFO L78 Accepts]: Start accepts. Automaton has 1423 states and 2125 transitions. Word has length 149 [2022-04-06 08:59:10,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:59:10,639 INFO L478 AbstractCegarLoop]: Abstraction has 1423 states and 2125 transitions. [2022-04-06 08:59:10,639 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.75) internal successors, (119), 3 states have internal predecessors, (119), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:59:10,639 INFO L276 IsEmpty]: Start isEmpty. Operand 1423 states and 2125 transitions. [2022-04-06 08:59:10,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2022-04-06 08:59:10,641 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:59:10,641 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:59:10,642 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-04-06 08:59:10,642 INFO L403 AbstractCegarLoop]: === Iteration 32 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:59:10,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:59:10,642 INFO L85 PathProgramCache]: Analyzing trace with hash -1724469547, now seen corresponding path program 1 times [2022-04-06 08:59:10,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:59:10,642 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008861520] [2022-04-06 08:59:10,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:59:10,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:59:10,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:59:10,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:59:10,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:59:10,789 INFO L134 CoverageAnalysis]: Checked inductivity of 254 backedges. 168 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2022-04-06 08:59:10,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:59:10,789 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008861520] [2022-04-06 08:59:10,789 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2008861520] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:59:10,789 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:59:10,789 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:59:10,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1244776858] [2022-04-06 08:59:10,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:59:10,789 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:59:10,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:59:10,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:59:10,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:59:10,790 INFO L87 Difference]: Start difference. First operand 1423 states and 2125 transitions. Second operand has 5 states, 5 states have (on average 26.0) internal successors, (130), 4 states have internal predecessors, (130), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:59:13,274 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:59:15,938 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:59:16,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:59:16,332 INFO L93 Difference]: Finished difference Result 1760 states and 2602 transitions. [2022-04-06 08:59:16,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:59:16,332 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.0) internal successors, (130), 4 states have internal predecessors, (130), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 178 [2022-04-06 08:59:16,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:59:16,336 INFO L225 Difference]: With dead ends: 1760 [2022-04-06 08:59:16,336 INFO L226 Difference]: Without dead ends: 1760 [2022-04-06 08:59:16,336 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:59:16,337 INFO L913 BasicCegarLoop]: 157 mSDtfsCounter, 122 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 488 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 440 SdHoareTripleChecker+Invalid, 538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 488 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-04-06 08:59:16,337 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [122 Valid, 440 Invalid, 538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 488 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2022-04-06 08:59:16,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1760 states. [2022-04-06 08:59:16,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1760 to 1534. [2022-04-06 08:59:16,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1534 states, 1529 states have (on average 1.4970568999345977) internal successors, (2289), 1529 states have internal predecessors, (2289), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:59:16,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1534 states to 1534 states and 2293 transitions. [2022-04-06 08:59:16,350 INFO L78 Accepts]: Start accepts. Automaton has 1534 states and 2293 transitions. Word has length 178 [2022-04-06 08:59:16,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:59:16,350 INFO L478 AbstractCegarLoop]: Abstraction has 1534 states and 2293 transitions. [2022-04-06 08:59:16,350 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.0) internal successors, (130), 4 states have internal predecessors, (130), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:59:16,350 INFO L276 IsEmpty]: Start isEmpty. Operand 1534 states and 2293 transitions. [2022-04-06 08:59:16,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2022-04-06 08:59:16,352 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:59:16,352 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:59:16,353 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-04-06 08:59:16,353 INFO L403 AbstractCegarLoop]: === Iteration 33 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:59:16,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:59:16,353 INFO L85 PathProgramCache]: Analyzing trace with hash -642977214, now seen corresponding path program 1 times [2022-04-06 08:59:16,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:59:16,353 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1282245539] [2022-04-06 08:59:16,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:59:16,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:59:16,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:59:16,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:59:16,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:59:16,458 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 159 proven. 0 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2022-04-06 08:59:16,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:59:16,458 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1282245539] [2022-04-06 08:59:16,458 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1282245539] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:59:16,458 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:59:16,458 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:59:16,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619627401] [2022-04-06 08:59:16,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:59:16,459 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:59:16,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:59:16,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:59:16,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:59:16,459 INFO L87 Difference]: Start difference. First operand 1534 states and 2293 transitions. Second operand has 5 states, 5 states have (on average 25.8) internal successors, (129), 4 states have internal predecessors, (129), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:59:17,806 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 [] [2022-04-06 08:59:19,830 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:59:21,628 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:59:22,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:59:22,047 INFO L93 Difference]: Finished difference Result 1684 states and 2512 transitions. [2022-04-06 08:59:22,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:59:22,047 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.8) internal successors, (129), 4 states have internal predecessors, (129), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 187 [2022-04-06 08:59:22,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:59:22,051 INFO L225 Difference]: With dead ends: 1684 [2022-04-06 08:59:22,051 INFO L226 Difference]: Without dead ends: 1684 [2022-04-06 08:59:22,051 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:59:22,052 INFO L913 BasicCegarLoop]: 263 mSDtfsCounter, 41 mSDsluCounter, 394 mSDsCounter, 0 mSdLazyCounter, 504 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 657 SdHoareTripleChecker+Invalid, 510 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 504 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-04-06 08:59:22,052 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [41 Valid, 657 Invalid, 510 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 504 Invalid, 1 Unknown, 0 Unchecked, 5.6s Time] [2022-04-06 08:59:22,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1684 states. [2022-04-06 08:59:22,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1684 to 1618. [2022-04-06 08:59:22,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1618 states, 1613 states have (on average 1.4972101673899565) internal successors, (2415), 1613 states have internal predecessors, (2415), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:59:22,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1618 states to 1618 states and 2419 transitions. [2022-04-06 08:59:22,064 INFO L78 Accepts]: Start accepts. Automaton has 1618 states and 2419 transitions. Word has length 187 [2022-04-06 08:59:22,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:59:22,064 INFO L478 AbstractCegarLoop]: Abstraction has 1618 states and 2419 transitions. [2022-04-06 08:59:22,065 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.8) internal successors, (129), 4 states have internal predecessors, (129), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:59:22,065 INFO L276 IsEmpty]: Start isEmpty. Operand 1618 states and 2419 transitions. [2022-04-06 08:59:22,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2022-04-06 08:59:22,067 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:59:22,067 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:59:22,067 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-04-06 08:59:22,067 INFO L403 AbstractCegarLoop]: === Iteration 34 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:59:22,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:59:22,068 INFO L85 PathProgramCache]: Analyzing trace with hash 711480470, now seen corresponding path program 1 times [2022-04-06 08:59:22,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:59:22,068 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [62414804] [2022-04-06 08:59:22,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:59:22,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:59:22,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:59:22,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:59:22,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:59:22,174 INFO L134 CoverageAnalysis]: Checked inductivity of 363 backedges. 182 proven. 0 refuted. 0 times theorem prover too weak. 181 trivial. 0 not checked. [2022-04-06 08:59:22,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:59:22,175 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [62414804] [2022-04-06 08:59:22,175 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [62414804] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:59:22,175 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:59:22,175 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-06 08:59:22,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081103820] [2022-04-06 08:59:22,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:59:22,175 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 08:59:22,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:59:22,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 08:59:22,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 08:59:22,176 INFO L87 Difference]: Start difference. First operand 1618 states and 2419 transitions. Second operand has 4 states, 4 states have (on average 27.25) internal successors, (109), 3 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) [2022-04-06 08:59:24,021 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:59:26,039 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:59:26,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:59:26,319 INFO L93 Difference]: Finished difference Result 2139 states and 3203 transitions. [2022-04-06 08:59:26,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 08:59:26,319 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.25) internal successors, (109), 3 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 203 [2022-04-06 08:59:26,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:59:26,324 INFO L225 Difference]: With dead ends: 2139 [2022-04-06 08:59:26,324 INFO L226 Difference]: Without dead ends: 2139 [2022-04-06 08:59:26,324 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 08:59:26,324 INFO L913 BasicCegarLoop]: 205 mSDtfsCounter, 161 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 290 mSolverCounterSat, 23 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 390 SdHoareTripleChecker+Invalid, 314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 290 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-04-06 08:59:26,325 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [161 Valid, 390 Invalid, 314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 290 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2022-04-06 08:59:26,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2139 states. [2022-04-06 08:59:26,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2139 to 2139. [2022-04-06 08:59:26,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2139 states, 2134 states have (on average 1.4990627928772258) internal successors, (3199), 2134 states have internal predecessors, (3199), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:59:26,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2139 states to 2139 states and 3203 transitions. [2022-04-06 08:59:26,342 INFO L78 Accepts]: Start accepts. Automaton has 2139 states and 3203 transitions. Word has length 203 [2022-04-06 08:59:26,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:59:26,342 INFO L478 AbstractCegarLoop]: Abstraction has 2139 states and 3203 transitions. [2022-04-06 08:59:26,342 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.25) internal successors, (109), 3 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) [2022-04-06 08:59:26,343 INFO L276 IsEmpty]: Start isEmpty. Operand 2139 states and 3203 transitions. [2022-04-06 08:59:26,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2022-04-06 08:59:26,346 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:59:26,346 INFO L499 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:59:26,346 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-04-06 08:59:26,346 INFO L403 AbstractCegarLoop]: === Iteration 35 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:59:26,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:59:26,346 INFO L85 PathProgramCache]: Analyzing trace with hash -1184547134, now seen corresponding path program 1 times [2022-04-06 08:59:26,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:59:26,347 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945948882] [2022-04-06 08:59:26,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:59:26,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:59:26,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:59:26,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:59:26,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:59:26,466 INFO L134 CoverageAnalysis]: Checked inductivity of 498 backedges. 322 proven. 0 refuted. 0 times theorem prover too weak. 176 trivial. 0 not checked. [2022-04-06 08:59:26,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:59:26,466 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [945948882] [2022-04-06 08:59:26,466 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [945948882] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:59:26,466 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:59:26,466 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:59:26,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243853315] [2022-04-06 08:59:26,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:59:26,466 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:59:26,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:59:26,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:59:26,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:59:26,467 INFO L87 Difference]: Start difference. First operand 2139 states and 3203 transitions. Second operand has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:59:27,842 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:59:29,860 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:59:31,100 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:59:32,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:59:32,507 INFO L93 Difference]: Finished difference Result 2428 states and 3557 transitions. [2022-04-06 08:59:32,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:59:32,508 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 241 [2022-04-06 08:59:32,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:59:32,512 INFO L225 Difference]: With dead ends: 2428 [2022-04-06 08:59:32,513 INFO L226 Difference]: Without dead ends: 2428 [2022-04-06 08:59:32,513 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:59:32,513 INFO L913 BasicCegarLoop]: 180 mSDtfsCounter, 140 mSDsluCounter, 305 mSDsCounter, 0 mSdLazyCounter, 513 mSolverCounterSat, 49 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 485 SdHoareTripleChecker+Invalid, 563 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 513 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-04-06 08:59:32,513 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [140 Valid, 485 Invalid, 563 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 513 Invalid, 1 Unknown, 0 Unchecked, 6.0s Time] [2022-04-06 08:59:32,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2428 states. [2022-04-06 08:59:32,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2428 to 2139. [2022-04-06 08:59:32,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2139 states, 2134 states have (on average 1.4803186504217432) internal successors, (3159), 2134 states have internal predecessors, (3159), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:59:32,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2139 states to 2139 states and 3163 transitions. [2022-04-06 08:59:32,529 INFO L78 Accepts]: Start accepts. Automaton has 2139 states and 3163 transitions. Word has length 241 [2022-04-06 08:59:32,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:59:32,530 INFO L478 AbstractCegarLoop]: Abstraction has 2139 states and 3163 transitions. [2022-04-06 08:59:32,530 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:59:32,530 INFO L276 IsEmpty]: Start isEmpty. Operand 2139 states and 3163 transitions. [2022-04-06 08:59:32,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2022-04-06 08:59:32,533 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:59:32,533 INFO L499 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:59:32,533 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-04-06 08:59:32,533 INFO L403 AbstractCegarLoop]: === Iteration 36 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:59:32,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:59:32,534 INFO L85 PathProgramCache]: Analyzing trace with hash 829865666, now seen corresponding path program 1 times [2022-04-06 08:59:32,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:59:32,534 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21063055] [2022-04-06 08:59:32,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:59:32,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:59:32,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:59:32,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:59:32,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:59:32,646 INFO L134 CoverageAnalysis]: Checked inductivity of 506 backedges. 330 proven. 0 refuted. 0 times theorem prover too weak. 176 trivial. 0 not checked. [2022-04-06 08:59:32,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:59:32,646 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21063055] [2022-04-06 08:59:32,646 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [21063055] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:59:32,646 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:59:32,646 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:59:32,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622337915] [2022-04-06 08:59:32,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:59:32,647 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:59:32,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:59:32,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:59:32,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:59:32,647 INFO L87 Difference]: Start difference. First operand 2139 states and 3163 transitions. Second operand has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:59:35,459 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 [] [2022-04-06 08:59:37,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:59:37,011 INFO L93 Difference]: Finished difference Result 2227 states and 3285 transitions. [2022-04-06 08:59:37,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:59:37,011 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 241 [2022-04-06 08:59:37,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:59:37,016 INFO L225 Difference]: With dead ends: 2227 [2022-04-06 08:59:37,016 INFO L226 Difference]: Without dead ends: 2227 [2022-04-06 08:59:37,016 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:59:37,017 INFO L913 BasicCegarLoop]: 262 mSDtfsCounter, 43 mSDsluCounter, 393 mSDsCounter, 0 mSdLazyCounter, 500 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 655 SdHoareTripleChecker+Invalid, 506 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 500 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-04-06 08:59:37,017 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [43 Valid, 655 Invalid, 506 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 500 Invalid, 1 Unknown, 0 Unchecked, 4.3s Time] [2022-04-06 08:59:37,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2227 states. [2022-04-06 08:59:37,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2227 to 2139. [2022-04-06 08:59:37,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2139 states, 2134 states have (on average 1.478444236176195) internal successors, (3155), 2134 states have internal predecessors, (3155), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:59:37,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2139 states to 2139 states and 3159 transitions. [2022-04-06 08:59:37,032 INFO L78 Accepts]: Start accepts. Automaton has 2139 states and 3159 transitions. Word has length 241 [2022-04-06 08:59:37,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:59:37,033 INFO L478 AbstractCegarLoop]: Abstraction has 2139 states and 3159 transitions. [2022-04-06 08:59:37,033 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:59:37,033 INFO L276 IsEmpty]: Start isEmpty. Operand 2139 states and 3159 transitions. [2022-04-06 08:59:37,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2022-04-06 08:59:37,035 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:59:37,035 INFO L499 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:59:37,036 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-04-06 08:59:37,036 INFO L403 AbstractCegarLoop]: === Iteration 37 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:59:37,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:59:37,036 INFO L85 PathProgramCache]: Analyzing trace with hash -2131789788, now seen corresponding path program 1 times [2022-04-06 08:59:37,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:59:37,036 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145011224] [2022-04-06 08:59:37,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:59:37,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:59:37,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:59:37,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:59:37,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:59:37,151 INFO L134 CoverageAnalysis]: Checked inductivity of 503 backedges. 327 proven. 0 refuted. 0 times theorem prover too weak. 176 trivial. 0 not checked. [2022-04-06 08:59:37,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:59:37,152 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2145011224] [2022-04-06 08:59:37,152 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2145011224] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:59:37,152 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:59:37,152 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:59:37,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922110271] [2022-04-06 08:59:37,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:59:37,153 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:59:37,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:59:37,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:59:37,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:59:37,154 INFO L87 Difference]: Start difference. First operand 2139 states and 3159 transitions. Second operand has 5 states, 5 states have (on average 26.8) internal successors, (134), 4 states have internal predecessors, (134), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:59:38,727 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:59:40,748 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:59:41,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:59:41,767 INFO L93 Difference]: Finished difference Result 2211 states and 3259 transitions. [2022-04-06 08:59:41,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:59:41,767 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.8) internal successors, (134), 4 states have internal predecessors, (134), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 242 [2022-04-06 08:59:41,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:59:41,772 INFO L225 Difference]: With dead ends: 2211 [2022-04-06 08:59:41,772 INFO L226 Difference]: Without dead ends: 2211 [2022-04-06 08:59:41,772 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:59:41,773 INFO L913 BasicCegarLoop]: 258 mSDtfsCounter, 39 mSDsluCounter, 389 mSDsCounter, 0 mSdLazyCounter, 485 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 647 SdHoareTripleChecker+Invalid, 491 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 485 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-04-06 08:59:41,773 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [39 Valid, 647 Invalid, 491 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 485 Invalid, 1 Unknown, 0 Unchecked, 4.6s Time] [2022-04-06 08:59:41,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2211 states. [2022-04-06 08:59:41,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2211 to 2139. [2022-04-06 08:59:41,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2139 states, 2134 states have (on average 1.4765698219306467) internal successors, (3151), 2134 states have internal predecessors, (3151), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:59:41,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2139 states to 2139 states and 3155 transitions. [2022-04-06 08:59:41,791 INFO L78 Accepts]: Start accepts. Automaton has 2139 states and 3155 transitions. Word has length 242 [2022-04-06 08:59:41,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:59:41,791 INFO L478 AbstractCegarLoop]: Abstraction has 2139 states and 3155 transitions. [2022-04-06 08:59:41,791 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.8) internal successors, (134), 4 states have internal predecessors, (134), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:59:41,791 INFO L276 IsEmpty]: Start isEmpty. Operand 2139 states and 3155 transitions. [2022-04-06 08:59:41,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2022-04-06 08:59:41,794 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:59:41,794 INFO L499 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:59:41,794 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-04-06 08:59:41,794 INFO L403 AbstractCegarLoop]: === Iteration 38 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:59:41,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:59:41,794 INFO L85 PathProgramCache]: Analyzing trace with hash 762659973, now seen corresponding path program 1 times [2022-04-06 08:59:41,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:59:41,795 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634646617] [2022-04-06 08:59:41,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:59:41,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:59:41,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:59:41,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:59:41,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:59:41,916 INFO L134 CoverageAnalysis]: Checked inductivity of 510 backedges. 334 proven. 0 refuted. 0 times theorem prover too weak. 176 trivial. 0 not checked. [2022-04-06 08:59:41,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:59:41,916 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [634646617] [2022-04-06 08:59:41,916 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [634646617] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:59:41,917 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:59:41,917 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:59:41,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400841596] [2022-04-06 08:59:41,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:59:41,917 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:59:41,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:59:41,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:59:41,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:59:41,917 INFO L87 Difference]: Start difference. First operand 2139 states and 3155 transitions. Second operand has 5 states, 5 states have (on average 26.8) internal successors, (134), 4 states have internal predecessors, (134), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:59:44,914 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:59:47,273 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:59:47,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:59:47,703 INFO L93 Difference]: Finished difference Result 2428 states and 3513 transitions. [2022-04-06 08:59:47,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:59:47,703 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.8) internal successors, (134), 4 states have internal predecessors, (134), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 242 [2022-04-06 08:59:47,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:59:47,707 INFO L225 Difference]: With dead ends: 2428 [2022-04-06 08:59:47,707 INFO L226 Difference]: Without dead ends: 2428 [2022-04-06 08:59:47,707 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:59:47,708 INFO L913 BasicCegarLoop]: 156 mSDtfsCounter, 137 mSDsluCounter, 282 mSDsCounter, 0 mSdLazyCounter, 488 mSolverCounterSat, 53 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 438 SdHoareTripleChecker+Invalid, 542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 488 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-04-06 08:59:47,708 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [137 Valid, 438 Invalid, 542 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 488 Invalid, 1 Unknown, 0 Unchecked, 5.8s Time] [2022-04-06 08:59:47,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2428 states. [2022-04-06 08:59:47,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2428 to 2139. [2022-04-06 08:59:47,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2139 states, 2134 states have (on average 1.4597000937207123) internal successors, (3115), 2134 states have internal predecessors, (3115), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:59:47,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2139 states to 2139 states and 3119 transitions. [2022-04-06 08:59:47,732 INFO L78 Accepts]: Start accepts. Automaton has 2139 states and 3119 transitions. Word has length 242 [2022-04-06 08:59:47,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:59:47,732 INFO L478 AbstractCegarLoop]: Abstraction has 2139 states and 3119 transitions. [2022-04-06 08:59:47,732 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.8) internal successors, (134), 4 states have internal predecessors, (134), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:59:47,733 INFO L276 IsEmpty]: Start isEmpty. Operand 2139 states and 3119 transitions. [2022-04-06 08:59:47,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2022-04-06 08:59:47,735 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:59:47,735 INFO L499 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:59:47,735 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-04-06 08:59:47,735 INFO L403 AbstractCegarLoop]: === Iteration 39 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:59:47,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:59:47,736 INFO L85 PathProgramCache]: Analyzing trace with hash 258878258, now seen corresponding path program 1 times [2022-04-06 08:59:47,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:59:47,736 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660722779] [2022-04-06 08:59:47,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:59:47,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:59:47,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:59:47,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:59:47,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:59:47,872 INFO L134 CoverageAnalysis]: Checked inductivity of 517 backedges. 374 proven. 0 refuted. 0 times theorem prover too weak. 143 trivial. 0 not checked. [2022-04-06 08:59:47,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:59:47,872 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1660722779] [2022-04-06 08:59:47,872 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1660722779] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:59:47,872 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:59:47,872 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-06 08:59:47,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133140011] [2022-04-06 08:59:47,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:59:47,872 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 08:59:47,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:59:47,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 08:59:47,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 08:59:47,873 INFO L87 Difference]: Start difference. First operand 2139 states and 3119 transitions. Second operand has 4 states, 4 states have (on average 35.25) internal successors, (141), 3 states have internal predecessors, (141), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:59:51,331 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 [] [2022-04-06 08:59:51,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:59:51,761 INFO L93 Difference]: Finished difference Result 2659 states and 3875 transitions. [2022-04-06 08:59:51,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 08:59:51,761 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 3 states have internal predecessors, (141), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 244 [2022-04-06 08:59:51,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:59:51,765 INFO L225 Difference]: With dead ends: 2659 [2022-04-06 08:59:51,765 INFO L226 Difference]: Without dead ends: 2659 [2022-04-06 08:59:51,765 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 08:59:51,765 INFO L913 BasicCegarLoop]: 403 mSDtfsCounter, 158 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 481 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 597 SdHoareTripleChecker+Invalid, 489 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 481 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-04-06 08:59:51,766 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [158 Valid, 597 Invalid, 489 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 481 Invalid, 1 Unknown, 0 Unchecked, 3.9s Time] [2022-04-06 08:59:51,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2659 states. [2022-04-06 08:59:51,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2659 to 2659. [2022-04-06 08:59:51,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2659 states, 2654 states have (on average 1.458553127354936) internal successors, (3871), 2654 states have internal predecessors, (3871), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:59:51,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2659 states to 2659 states and 3875 transitions. [2022-04-06 08:59:51,787 INFO L78 Accepts]: Start accepts. Automaton has 2659 states and 3875 transitions. Word has length 244 [2022-04-06 08:59:51,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:59:51,787 INFO L478 AbstractCegarLoop]: Abstraction has 2659 states and 3875 transitions. [2022-04-06 08:59:51,787 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 3 states have internal predecessors, (141), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:59:51,787 INFO L276 IsEmpty]: Start isEmpty. Operand 2659 states and 3875 transitions. [2022-04-06 08:59:51,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2022-04-06 08:59:51,790 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:59:51,790 INFO L499 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:59:51,791 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-04-06 08:59:51,791 INFO L403 AbstractCegarLoop]: === Iteration 40 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:59:51,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:59:51,791 INFO L85 PathProgramCache]: Analyzing trace with hash 454431661, now seen corresponding path program 1 times [2022-04-06 08:59:51,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:59:51,791 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065908693] [2022-04-06 08:59:51,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:59:51,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:59:51,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:59:51,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:59:51,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:59:51,915 INFO L134 CoverageAnalysis]: Checked inductivity of 517 backedges. 272 proven. 0 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2022-04-06 08:59:51,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:59:51,916 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1065908693] [2022-04-06 08:59:51,916 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1065908693] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:59:51,916 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:59:51,916 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-06 08:59:51,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797643509] [2022-04-06 08:59:51,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:59:51,916 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 08:59:51,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:59:51,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 08:59:51,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 08:59:51,917 INFO L87 Difference]: Start difference. First operand 2659 states and 3875 transitions. Second operand has 4 states, 4 states have (on average 40.0) internal successors, (160), 3 states have internal predecessors, (160), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:59:53,300 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 [] [2022-04-06 08:59:55,209 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:59:56,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:59:56,145 INFO L93 Difference]: Finished difference Result 3180 states and 4639 transitions. [2022-04-06 08:59:56,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 08:59:56,146 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.0) internal successors, (160), 3 states have internal predecessors, (160), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 250 [2022-04-06 08:59:56,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:59:56,149 INFO L225 Difference]: With dead ends: 3180 [2022-04-06 08:59:56,149 INFO L226 Difference]: Without dead ends: 3180 [2022-04-06 08:59:56,149 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 08:59:56,150 INFO L913 BasicCegarLoop]: 204 mSDtfsCounter, 161 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 291 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 389 SdHoareTripleChecker+Invalid, 315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-04-06 08:59:56,150 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [161 Valid, 389 Invalid, 315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 291 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2022-04-06 08:59:56,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3180 states. [2022-04-06 08:59:56,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3180 to 3180. [2022-04-06 08:59:56,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3180 states, 3175 states have (on average 1.4598425196850393) internal successors, (4635), 3175 states have internal predecessors, (4635), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:59:56,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3180 states to 3180 states and 4639 transitions. [2022-04-06 08:59:56,171 INFO L78 Accepts]: Start accepts. Automaton has 3180 states and 4639 transitions. Word has length 250 [2022-04-06 08:59:56,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:59:56,171 INFO L478 AbstractCegarLoop]: Abstraction has 3180 states and 4639 transitions. [2022-04-06 08:59:56,171 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.0) internal successors, (160), 3 states have internal predecessors, (160), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:59:56,171 INFO L276 IsEmpty]: Start isEmpty. Operand 3180 states and 4639 transitions. [2022-04-06 08:59:56,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2022-04-06 08:59:56,175 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:59:56,175 INFO L499 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:59:56,175 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-04-06 08:59:56,175 INFO L403 AbstractCegarLoop]: === Iteration 41 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:59:56,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:59:56,176 INFO L85 PathProgramCache]: Analyzing trace with hash -1734798122, now seen corresponding path program 1 times [2022-04-06 08:59:56,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:59:56,176 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292826965] [2022-04-06 08:59:56,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:59:56,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:59:56,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:59:56,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:59:56,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:59:56,286 INFO L134 CoverageAnalysis]: Checked inductivity of 517 backedges. 272 proven. 0 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2022-04-06 08:59:56,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:59:56,286 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1292826965] [2022-04-06 08:59:56,286 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1292826965] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:59:56,286 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:59:56,286 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-06 08:59:56,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594577285] [2022-04-06 08:59:56,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:59:56,286 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 08:59:56,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:59:56,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 08:59:56,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 08:59:56,287 INFO L87 Difference]: Start difference. First operand 3180 states and 4639 transitions. Second operand has 4 states, 4 states have (on average 40.5) internal successors, (162), 3 states have internal predecessors, (162), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:59:57,693 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:59:59,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:59:59,093 INFO L93 Difference]: Finished difference Result 3701 states and 5404 transitions. [2022-04-06 08:59:59,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 08:59:59,094 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.5) internal successors, (162), 3 states have internal predecessors, (162), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 252 [2022-04-06 08:59:59,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:59:59,098 INFO L225 Difference]: With dead ends: 3701 [2022-04-06 08:59:59,098 INFO L226 Difference]: Without dead ends: 3701 [2022-04-06 08:59:59,098 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 08:59:59,098 INFO L913 BasicCegarLoop]: 203 mSDtfsCounter, 162 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 291 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 388 SdHoareTripleChecker+Invalid, 316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-04-06 08:59:59,099 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [162 Valid, 388 Invalid, 316 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 291 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-04-06 08:59:59,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3701 states. [2022-04-06 08:59:59,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3701 to 3701. [2022-04-06 08:59:59,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3701 states, 3696 states have (on average 1.4610389610389611) internal successors, (5400), 3696 states have internal predecessors, (5400), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:59:59,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3701 states to 3701 states and 5404 transitions. [2022-04-06 08:59:59,123 INFO L78 Accepts]: Start accepts. Automaton has 3701 states and 5404 transitions. Word has length 252 [2022-04-06 08:59:59,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:59:59,123 INFO L478 AbstractCegarLoop]: Abstraction has 3701 states and 5404 transitions. [2022-04-06 08:59:59,123 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.5) internal successors, (162), 3 states have internal predecessors, (162), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:59:59,123 INFO L276 IsEmpty]: Start isEmpty. Operand 3701 states and 5404 transitions. [2022-04-06 08:59:59,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2022-04-06 08:59:59,128 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:59:59,128 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 5, 5, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:59:59,128 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-04-06 08:59:59,128 INFO L403 AbstractCegarLoop]: === Iteration 42 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:59:59,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:59:59,128 INFO L85 PathProgramCache]: Analyzing trace with hash 1277534805, now seen corresponding path program 1 times [2022-04-06 08:59:59,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:59:59,128 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250956207] [2022-04-06 08:59:59,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:59:59,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:59:59,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:59:59,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:59:59,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:59:59,259 INFO L134 CoverageAnalysis]: Checked inductivity of 694 backedges. 181 proven. 0 refuted. 0 times theorem prover too weak. 513 trivial. 0 not checked. [2022-04-06 08:59:59,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:59:59,259 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250956207] [2022-04-06 08:59:59,259 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1250956207] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:59:59,259 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:59:59,260 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-06 08:59:59,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217197775] [2022-04-06 08:59:59,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:59:59,260 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 08:59:59,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:59:59,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 08:59:59,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 08:59:59,260 INFO L87 Difference]: Start difference. First operand 3701 states and 5404 transitions. Second operand has 4 states, 4 states have (on average 32.5) internal successors, (130), 3 states have internal predecessors, (130), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 09:00:00,575 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 09:00:02,594 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 09:00:04,621 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 [] [2022-04-06 09:00:05,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 09:00:05,043 INFO L93 Difference]: Finished difference Result 4215 states and 6153 transitions. [2022-04-06 09:00:05,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 09:00:05,044 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.5) internal successors, (130), 3 states have internal predecessors, (130), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 276 [2022-04-06 09:00:05,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 09:00:05,049 INFO L225 Difference]: With dead ends: 4215 [2022-04-06 09:00:05,049 INFO L226 Difference]: Without dead ends: 4215 [2022-04-06 09:00:05,049 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 09:00:05,050 INFO L913 BasicCegarLoop]: 400 mSDtfsCounter, 150 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 471 mSolverCounterSat, 17 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 594 SdHoareTripleChecker+Invalid, 490 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 471 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-04-06 09:00:05,050 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [150 Valid, 594 Invalid, 490 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 471 Invalid, 2 Unknown, 0 Unchecked, 5.8s Time] [2022-04-06 09:00:05,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4215 states. [2022-04-06 09:00:05,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4215 to 4215. [2022-04-06 09:00:05,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4215 states, 4210 states have (on average 1.4605700712589074) internal successors, (6149), 4210 states have internal predecessors, (6149), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 09:00:05,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4215 states to 4215 states and 6153 transitions. [2022-04-06 09:00:05,086 INFO L78 Accepts]: Start accepts. Automaton has 4215 states and 6153 transitions. Word has length 276 [2022-04-06 09:00:05,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 09:00:05,086 INFO L478 AbstractCegarLoop]: Abstraction has 4215 states and 6153 transitions. [2022-04-06 09:00:05,086 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.5) internal successors, (130), 3 states have internal predecessors, (130), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 09:00:05,086 INFO L276 IsEmpty]: Start isEmpty. Operand 4215 states and 6153 transitions. [2022-04-06 09:00:05,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2022-04-06 09:00:05,092 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 09:00:05,092 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 5, 5, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 09:00:05,092 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-04-06 09:00:05,092 INFO L403 AbstractCegarLoop]: === Iteration 43 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 09:00:05,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 09:00:05,093 INFO L85 PathProgramCache]: Analyzing trace with hash 1401608052, now seen corresponding path program 1 times [2022-04-06 09:00:05,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 09:00:05,093 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400194610] [2022-04-06 09:00:05,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 09:00:05,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 09:00:05,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 09:00:05,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 09:00:05,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 09:00:05,234 INFO L134 CoverageAnalysis]: Checked inductivity of 694 backedges. 330 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2022-04-06 09:00:05,234 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 09:00:05,235 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400194610] [2022-04-06 09:00:05,235 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [400194610] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 09:00:05,235 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 09:00:05,235 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-06 09:00:05,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498554681] [2022-04-06 09:00:05,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 09:00:05,236 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 09:00:05,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 09:00:05,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 09:00:05,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 09:00:05,237 INFO L87 Difference]: Start difference. First operand 4215 states and 6153 transitions. Second operand has 4 states, 4 states have (on average 39.75) internal successors, (159), 3 states have internal predecessors, (159), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 09:00:07,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 09:00:07,753 INFO L93 Difference]: Finished difference Result 4703 states and 6862 transitions. [2022-04-06 09:00:07,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 09:00:07,754 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.75) internal successors, (159), 3 states have internal predecessors, (159), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 276 [2022-04-06 09:00:07,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 09:00:07,760 INFO L225 Difference]: With dead ends: 4703 [2022-04-06 09:00:07,760 INFO L226 Difference]: Without dead ends: 4703 [2022-04-06 09:00:07,760 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 09:00:07,761 INFO L913 BasicCegarLoop]: 403 mSDtfsCounter, 158 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 597 SdHoareTripleChecker+Invalid, 502 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-04-06 09:00:07,761 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [158 Valid, 597 Invalid, 502 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 482 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-04-06 09:00:07,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4703 states. [2022-04-06 09:00:07,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4703 to 4703. [2022-04-06 09:00:07,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4703 states, 4698 states have (on average 1.4597701149425288) internal successors, (6858), 4698 states have internal predecessors, (6858), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 09:00:07,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4703 states to 4703 states and 6862 transitions. [2022-04-06 09:00:07,796 INFO L78 Accepts]: Start accepts. Automaton has 4703 states and 6862 transitions. Word has length 276 [2022-04-06 09:00:07,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 09:00:07,797 INFO L478 AbstractCegarLoop]: Abstraction has 4703 states and 6862 transitions. [2022-04-06 09:00:07,797 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.75) internal successors, (159), 3 states have internal predecessors, (159), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 09:00:07,797 INFO L276 IsEmpty]: Start isEmpty. Operand 4703 states and 6862 transitions. [2022-04-06 09:00:07,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 360 [2022-04-06 09:00:07,803 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 09:00:07,803 INFO L499 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 9, 9, 8, 8, 7, 7, 6, 6, 6, 6, 6, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 09:00:07,803 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-04-06 09:00:07,803 INFO L403 AbstractCegarLoop]: === Iteration 44 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 09:00:07,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 09:00:07,804 INFO L85 PathProgramCache]: Analyzing trace with hash -70707793, now seen corresponding path program 1 times [2022-04-06 09:00:07,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 09:00:07,804 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857633400] [2022-04-06 09:00:07,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 09:00:07,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 09:00:07,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 09:00:07,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 09:00:07,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 09:00:07,980 INFO L134 CoverageAnalysis]: Checked inductivity of 1160 backedges. 466 proven. 0 refuted. 0 times theorem prover too weak. 694 trivial. 0 not checked. [2022-04-06 09:00:07,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 09:00:07,981 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [857633400] [2022-04-06 09:00:07,981 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [857633400] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 09:00:07,981 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 09:00:07,981 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-06 09:00:07,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287989265] [2022-04-06 09:00:07,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 09:00:07,981 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 09:00:07,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 09:00:07,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 09:00:07,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 09:00:07,982 INFO L87 Difference]: Start difference. First operand 4703 states and 6862 transitions. Second operand has 4 states, 4 states have (on average 45.5) internal successors, (182), 3 states have internal predecessors, (182), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 09:00:09,001 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 [] [2022-04-06 09:00:11,042 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 09:00:11,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 09:00:11,301 INFO L93 Difference]: Finished difference Result 5224 states and 7630 transitions. [2022-04-06 09:00:11,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 09:00:11,301 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 45.5) internal successors, (182), 3 states have internal predecessors, (182), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 359 [2022-04-06 09:00:11,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 09:00:11,320 INFO L225 Difference]: With dead ends: 5224 [2022-04-06 09:00:11,321 INFO L226 Difference]: Without dead ends: 5224 [2022-04-06 09:00:11,321 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 09:00:11,321 INFO L913 BasicCegarLoop]: 200 mSDtfsCounter, 160 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 291 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 385 SdHoareTripleChecker+Invalid, 319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-04-06 09:00:11,321 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [160 Valid, 385 Invalid, 319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 291 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-04-06 09:00:11,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5224 states. [2022-04-06 09:00:11,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5224 to 5224. [2022-04-06 09:00:11,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5224 states, 5219 states have (on average 1.4611994634987546) internal successors, (7626), 5219 states have internal predecessors, (7626), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 09:00:11,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5224 states to 5224 states and 7630 transitions. [2022-04-06 09:00:11,358 INFO L78 Accepts]: Start accepts. Automaton has 5224 states and 7630 transitions. Word has length 359 [2022-04-06 09:00:11,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 09:00:11,359 INFO L478 AbstractCegarLoop]: Abstraction has 5224 states and 7630 transitions. [2022-04-06 09:00:11,359 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 45.5) internal successors, (182), 3 states have internal predecessors, (182), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 09:00:11,359 INFO L276 IsEmpty]: Start isEmpty. Operand 5224 states and 7630 transitions. [2022-04-06 09:00:11,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 400 [2022-04-06 09:00:11,365 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 09:00:11,366 INFO L499 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 10, 10, 9, 9, 8, 8, 7, 7, 7, 7, 7, 6, 6, 5, 5, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 09:00:11,366 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-04-06 09:00:11,366 INFO L403 AbstractCegarLoop]: === Iteration 45 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 09:00:11,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 09:00:11,367 INFO L85 PathProgramCache]: Analyzing trace with hash -1935497870, now seen corresponding path program 1 times [2022-04-06 09:00:11,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 09:00:11,368 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169442750] [2022-04-06 09:00:11,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 09:00:11,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 09:00:11,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 09:00:11,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 09:00:11,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 09:00:11,551 INFO L134 CoverageAnalysis]: Checked inductivity of 1445 backedges. 285 proven. 0 refuted. 0 times theorem prover too weak. 1160 trivial. 0 not checked. [2022-04-06 09:00:11,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 09:00:11,552 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169442750] [2022-04-06 09:00:11,552 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1169442750] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 09:00:11,552 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 09:00:11,552 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-06 09:00:11,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079070759] [2022-04-06 09:00:11,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 09:00:11,552 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 09:00:11,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 09:00:11,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 09:00:11,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 09:00:11,553 INFO L87 Difference]: Start difference. First operand 5224 states and 7630 transitions. Second operand has 4 states, 4 states have (on average 38.5) internal successors, (154), 3 states have internal predecessors, (154), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 09:00:13,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 09:00:13,688 INFO L93 Difference]: Finished difference Result 5739 states and 8380 transitions. [2022-04-06 09:00:13,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 09:00:13,688 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.5) internal successors, (154), 3 states have internal predecessors, (154), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 399 [2022-04-06 09:00:13,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 09:00:13,696 INFO L225 Difference]: With dead ends: 5739 [2022-04-06 09:00:13,696 INFO L226 Difference]: Without dead ends: 5739 [2022-04-06 09:00:13,696 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 09:00:13,696 INFO L913 BasicCegarLoop]: 400 mSDtfsCounter, 148 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 475 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 594 SdHoareTripleChecker+Invalid, 493 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 475 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-04-06 09:00:13,696 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 594 Invalid, 493 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 475 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-04-06 09:00:13,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5739 states. [2022-04-06 09:00:13,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5739 to 5739. [2022-04-06 09:00:13,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5739 states, 5734 states have (on average 1.4607603767003836) internal successors, (8376), 5734 states have internal predecessors, (8376), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 09:00:13,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5739 states to 5739 states and 8380 transitions. [2022-04-06 09:00:13,787 INFO L78 Accepts]: Start accepts. Automaton has 5739 states and 8380 transitions. Word has length 399 [2022-04-06 09:00:13,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 09:00:13,787 INFO L478 AbstractCegarLoop]: Abstraction has 5739 states and 8380 transitions. [2022-04-06 09:00:13,787 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.5) internal successors, (154), 3 states have internal predecessors, (154), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 09:00:13,787 INFO L276 IsEmpty]: Start isEmpty. Operand 5739 states and 8380 transitions. [2022-04-06 09:00:13,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 401 [2022-04-06 09:00:13,795 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 09:00:13,795 INFO L499 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 10, 10, 9, 9, 8, 8, 7, 7, 7, 7, 7, 6, 6, 5, 5, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 09:00:13,795 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-04-06 09:00:13,795 INFO L403 AbstractCegarLoop]: === Iteration 46 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 09:00:13,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 09:00:13,795 INFO L85 PathProgramCache]: Analyzing trace with hash 1383950275, now seen corresponding path program 1 times [2022-04-06 09:00:13,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 09:00:13,795 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180576820] [2022-04-06 09:00:13,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 09:00:13,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 09:00:13,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 09:00:13,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 09:00:13,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 09:00:13,956 INFO L134 CoverageAnalysis]: Checked inductivity of 1445 backedges. 536 proven. 0 refuted. 0 times theorem prover too weak. 909 trivial. 0 not checked. [2022-04-06 09:00:13,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 09:00:13,956 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180576820] [2022-04-06 09:00:13,956 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1180576820] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 09:00:13,956 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 09:00:13,957 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-06 09:00:13,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566131341] [2022-04-06 09:00:13,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 09:00:13,957 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 09:00:13,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 09:00:13,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 09:00:13,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 09:00:13,957 INFO L87 Difference]: Start difference. First operand 5739 states and 8380 transitions. Second operand has 4 states, 4 states have (on average 47.5) internal successors, (190), 3 states have internal predecessors, (190), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 09:00:16,914 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 [] [2022-04-06 09:00:17,948 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 [] [2022-04-06 09:00:18,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 09:00:18,350 INFO L93 Difference]: Finished difference Result 6222 states and 9082 transitions. [2022-04-06 09:00:18,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 09:00:18,350 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 47.5) internal successors, (190), 3 states have internal predecessors, (190), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 400 [2022-04-06 09:00:18,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 09:00:18,376 INFO L225 Difference]: With dead ends: 6222 [2022-04-06 09:00:18,377 INFO L226 Difference]: Without dead ends: 6222 [2022-04-06 09:00:18,377 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 09:00:18,377 INFO L913 BasicCegarLoop]: 400 mSDtfsCounter, 146 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 474 mSolverCounterSat, 18 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 594 SdHoareTripleChecker+Invalid, 493 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 474 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-04-06 09:00:18,377 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [146 Valid, 594 Invalid, 493 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 474 Invalid, 1 Unknown, 0 Unchecked, 4.4s Time] [2022-04-06 09:00:18,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6222 states. [2022-04-06 09:00:18,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6222 to 6222. [2022-04-06 09:00:18,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6222 states, 6217 states have (on average 1.4601898021553803) internal successors, (9078), 6217 states have internal predecessors, (9078), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 09:00:18,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6222 states to 6222 states and 9082 transitions. [2022-04-06 09:00:18,421 INFO L78 Accepts]: Start accepts. Automaton has 6222 states and 9082 transitions. Word has length 400 [2022-04-06 09:00:18,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 09:00:18,421 INFO L478 AbstractCegarLoop]: Abstraction has 6222 states and 9082 transitions. [2022-04-06 09:00:18,421 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 47.5) internal successors, (190), 3 states have internal predecessors, (190), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 09:00:18,421 INFO L276 IsEmpty]: Start isEmpty. Operand 6222 states and 9082 transitions. [2022-04-06 09:00:18,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 485 [2022-04-06 09:00:18,430 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 09:00:18,431 INFO L499 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 12, 12, 11, 11, 10, 10, 9, 9, 9, 9, 9, 8, 8, 7, 7, 6, 6, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 09:00:18,431 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-04-06 09:00:18,431 INFO L403 AbstractCegarLoop]: === Iteration 47 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 09:00:18,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 09:00:18,431 INFO L85 PathProgramCache]: Analyzing trace with hash -1926651641, now seen corresponding path program 1 times [2022-04-06 09:00:18,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 09:00:18,432 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762212565] [2022-04-06 09:00:18,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 09:00:18,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 09:00:18,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 09:00:18,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 09:00:18,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 09:00:18,647 INFO L134 CoverageAnalysis]: Checked inductivity of 2132 backedges. 687 proven. 0 refuted. 0 times theorem prover too weak. 1445 trivial. 0 not checked. [2022-04-06 09:00:18,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 09:00:18,647 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762212565] [2022-04-06 09:00:18,647 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [762212565] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 09:00:18,647 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 09:00:18,647 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-06 09:00:18,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892089401] [2022-04-06 09:00:18,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 09:00:18,647 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 09:00:18,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 09:00:18,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 09:00:18,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 09:00:18,648 INFO L87 Difference]: Start difference. First operand 6222 states and 9082 transitions. Second operand has 4 states, 4 states have (on average 51.0) internal successors, (204), 3 states have internal predecessors, (204), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 09:00:20,673 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 [] [2022-04-06 09:00:21,717 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 [] [2022-04-06 09:00:22,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 09:00:22,055 INFO L93 Difference]: Finished difference Result 6743 states and 9853 transitions. [2022-04-06 09:00:22,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 09:00:22,055 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 51.0) internal successors, (204), 3 states have internal predecessors, (204), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 484 [2022-04-06 09:00:22,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 09:00:22,065 INFO L225 Difference]: With dead ends: 6743 [2022-04-06 09:00:22,065 INFO L226 Difference]: Without dead ends: 6743 [2022-04-06 09:00:22,065 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 09:00:22,066 INFO L913 BasicCegarLoop]: 197 mSDtfsCounter, 159 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 291 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-04-06 09:00:22,066 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 382 Invalid, 322 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 291 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-04-06 09:00:22,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6743 states. [2022-04-06 09:00:22,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6743 to 6743. [2022-04-06 09:00:22,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6743 states, 6738 states have (on average 1.4617097061442565) internal successors, (9849), 6738 states have internal predecessors, (9849), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 09:00:22,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6743 states to 6743 states and 9853 transitions. [2022-04-06 09:00:22,134 INFO L78 Accepts]: Start accepts. Automaton has 6743 states and 9853 transitions. Word has length 484 [2022-04-06 09:00:22,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 09:00:22,135 INFO L478 AbstractCegarLoop]: Abstraction has 6743 states and 9853 transitions. [2022-04-06 09:00:22,135 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 51.0) internal successors, (204), 3 states have internal predecessors, (204), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 09:00:22,135 INFO L276 IsEmpty]: Start isEmpty. Operand 6743 states and 9853 transitions. [2022-04-06 09:00:22,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 526 [2022-04-06 09:00:22,145 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 09:00:22,145 INFO L499 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 13, 13, 12, 12, 11, 11, 10, 10, 10, 10, 10, 9, 9, 8, 8, 7, 7, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 09:00:22,145 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-04-06 09:00:22,145 INFO L403 AbstractCegarLoop]: === Iteration 48 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 09:00:22,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 09:00:22,146 INFO L85 PathProgramCache]: Analyzing trace with hash -1218320683, now seen corresponding path program 1 times [2022-04-06 09:00:22,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 09:00:22,146 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737481315] [2022-04-06 09:00:22,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 09:00:22,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 09:00:22,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 09:00:22,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 09:00:22,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 09:00:22,409 INFO L134 CoverageAnalysis]: Checked inductivity of 2528 backedges. 1473 proven. 0 refuted. 0 times theorem prover too weak. 1055 trivial. 0 not checked. [2022-04-06 09:00:22,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 09:00:22,409 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737481315] [2022-04-06 09:00:22,409 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1737481315] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 09:00:22,409 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 09:00:22,409 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 09:00:22,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937526504] [2022-04-06 09:00:22,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 09:00:22,410 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 09:00:22,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 09:00:22,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 09:00:22,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 09:00:22,411 INFO L87 Difference]: Start difference. First operand 6743 states and 9853 transitions. Second operand has 5 states, 5 states have (on average 39.6) internal successors, (198), 4 states have internal predecessors, (198), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 09:00:23,947 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 09:00:26,424 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 09:00:27,898 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 09:00:28,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 09:00:28,368 INFO L93 Difference]: Finished difference Result 7819 states and 11343 transitions. [2022-04-06 09:00:28,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 09:00:28,368 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 39.6) internal successors, (198), 4 states have internal predecessors, (198), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 525 [2022-04-06 09:00:28,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 09:00:28,376 INFO L225 Difference]: With dead ends: 7819 [2022-04-06 09:00:28,376 INFO L226 Difference]: Without dead ends: 7819 [2022-04-06 09:00:28,376 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 09:00:28,376 INFO L913 BasicCegarLoop]: 287 mSDtfsCounter, 68 mSDsluCounter, 418 mSDsCounter, 0 mSdLazyCounter, 599 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 705 SdHoareTripleChecker+Invalid, 606 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 599 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-04-06 09:00:28,376 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [68 Valid, 705 Invalid, 606 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 599 Invalid, 1 Unknown, 0 Unchecked, 5.9s Time] [2022-04-06 09:00:28,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7819 states. [2022-04-06 09:00:28,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7819 to 7276. [2022-04-06 09:00:28,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7276 states, 7271 states have (on average 1.4618346857378628) internal successors, (10629), 7271 states have internal predecessors, (10629), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 09:00:28,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7276 states to 7276 states and 10633 transitions. [2022-04-06 09:00:28,426 INFO L78 Accepts]: Start accepts. Automaton has 7276 states and 10633 transitions. Word has length 525 [2022-04-06 09:00:28,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 09:00:28,426 INFO L478 AbstractCegarLoop]: Abstraction has 7276 states and 10633 transitions. [2022-04-06 09:00:28,426 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 39.6) internal successors, (198), 4 states have internal predecessors, (198), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 09:00:28,426 INFO L276 IsEmpty]: Start isEmpty. Operand 7276 states and 10633 transitions. [2022-04-06 09:00:28,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 526 [2022-04-06 09:00:28,433 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 09:00:28,434 INFO L499 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 13, 13, 12, 12, 11, 11, 10, 10, 10, 10, 10, 9, 9, 8, 8, 7, 7, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 09:00:28,434 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-04-06 09:00:28,434 INFO L403 AbstractCegarLoop]: === Iteration 49 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 09:00:28,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 09:00:28,434 INFO L85 PathProgramCache]: Analyzing trace with hash -1646733805, now seen corresponding path program 1 times [2022-04-06 09:00:28,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 09:00:28,434 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250309133] [2022-04-06 09:00:28,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 09:00:28,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 09:00:28,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 09:00:28,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 09:00:28,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 09:00:28,720 INFO L134 CoverageAnalysis]: Checked inductivity of 2528 backedges. 393 proven. 0 refuted. 0 times theorem prover too weak. 2135 trivial. 0 not checked. [2022-04-06 09:00:28,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 09:00:28,720 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250309133] [2022-04-06 09:00:28,720 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1250309133] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 09:00:28,720 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 09:00:28,720 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-06 09:00:28,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030205775] [2022-04-06 09:00:28,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 09:00:28,720 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 09:00:28,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 09:00:28,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 09:00:28,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 09:00:28,721 INFO L87 Difference]: Start difference. First operand 7276 states and 10633 transitions. Second operand has 4 states, 4 states have (on average 40.75) internal successors, (163), 3 states have internal predecessors, (163), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 09:00:30,436 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 09:00:33,253 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 09:00:33,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 09:00:33,668 INFO L93 Difference]: Finished difference Result 7833 states and 11444 transitions. [2022-04-06 09:00:33,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 09:00:33,669 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.75) internal successors, (163), 3 states have internal predecessors, (163), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 525 [2022-04-06 09:00:33,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 09:00:33,677 INFO L225 Difference]: With dead ends: 7833 [2022-04-06 09:00:33,677 INFO L226 Difference]: Without dead ends: 7833 [2022-04-06 09:00:33,677 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 09:00:33,678 INFO L913 BasicCegarLoop]: 400 mSDtfsCounter, 148 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 476 mSolverCounterSat, 19 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 594 SdHoareTripleChecker+Invalid, 496 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 476 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-04-06 09:00:33,678 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 594 Invalid, 496 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 476 Invalid, 1 Unknown, 0 Unchecked, 4.9s Time] [2022-04-06 09:00:33,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7833 states. [2022-04-06 09:00:33,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7833 to 7833. [2022-04-06 09:00:33,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7833 states, 7828 states have (on average 1.4614205416453756) internal successors, (11440), 7828 states have internal predecessors, (11440), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 09:00:33,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7833 states to 7833 states and 11444 transitions. [2022-04-06 09:00:33,743 INFO L78 Accepts]: Start accepts. Automaton has 7833 states and 11444 transitions. Word has length 525 [2022-04-06 09:00:33,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 09:00:33,744 INFO L478 AbstractCegarLoop]: Abstraction has 7833 states and 11444 transitions. [2022-04-06 09:00:33,744 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.75) internal successors, (163), 3 states have internal predecessors, (163), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 09:00:33,744 INFO L276 IsEmpty]: Start isEmpty. Operand 7833 states and 11444 transitions. [2022-04-06 09:00:33,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 527 [2022-04-06 09:00:33,751 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 09:00:33,751 INFO L499 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 13, 13, 12, 12, 11, 11, 10, 10, 10, 10, 10, 9, 9, 8, 8, 7, 7, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 09:00:33,751 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-04-06 09:00:33,751 INFO L403 AbstractCegarLoop]: === Iteration 50 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 09:00:33,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 09:00:33,752 INFO L85 PathProgramCache]: Analyzing trace with hash -107494532, now seen corresponding path program 1 times [2022-04-06 09:00:33,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 09:00:33,752 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [524517056] [2022-04-06 09:00:33,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 09:00:33,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 09:00:33,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 09:00:33,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 09:00:33,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 09:00:33,987 INFO L134 CoverageAnalysis]: Checked inductivity of 2528 backedges. 756 proven. 0 refuted. 0 times theorem prover too weak. 1772 trivial. 0 not checked. [2022-04-06 09:00:33,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 09:00:33,987 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [524517056] [2022-04-06 09:00:33,987 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [524517056] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 09:00:33,988 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 09:00:33,988 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-06 09:00:33,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932787426] [2022-04-06 09:00:33,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 09:00:33,988 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 09:00:33,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 09:00:33,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 09:00:33,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 09:00:33,989 INFO L87 Difference]: Start difference. First operand 7833 states and 11444 transitions. Second operand has 4 states, 4 states have (on average 51.25) internal successors, (205), 3 states have internal predecessors, (205), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 09:00:35,132 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 09:00:36,993 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 09:00:38,397 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 09:00:38,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 09:00:38,859 INFO L93 Difference]: Finished difference Result 8358 states and 12207 transitions. [2022-04-06 09:00:38,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 09:00:38,860 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 51.25) internal successors, (205), 3 states have internal predecessors, (205), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 526 [2022-04-06 09:00:38,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 09:00:38,869 INFO L225 Difference]: With dead ends: 8358 [2022-04-06 09:00:38,869 INFO L226 Difference]: Without dead ends: 8358 [2022-04-06 09:00:38,869 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 09:00:38,870 INFO L913 BasicCegarLoop]: 400 mSDtfsCounter, 146 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 594 SdHoareTripleChecker+Invalid, 496 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-04-06 09:00:38,870 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [146 Valid, 594 Invalid, 496 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 477 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2022-04-06 09:00:38,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8358 states. [2022-04-06 09:00:38,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8358 to 8358. [2022-04-06 09:00:38,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8358 states, 8353 states have (on average 1.4609122470968514) internal successors, (12203), 8353 states have internal predecessors, (12203), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 09:00:38,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8358 states to 8358 states and 12207 transitions. [2022-04-06 09:00:38,960 INFO L78 Accepts]: Start accepts. Automaton has 8358 states and 12207 transitions. Word has length 526 [2022-04-06 09:00:38,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 09:00:38,961 INFO L478 AbstractCegarLoop]: Abstraction has 8358 states and 12207 transitions. [2022-04-06 09:00:38,961 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 51.25) internal successors, (205), 3 states have internal predecessors, (205), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 09:00:38,961 INFO L276 IsEmpty]: Start isEmpty. Operand 8358 states and 12207 transitions. [2022-04-06 09:00:38,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 613 [2022-04-06 09:00:38,972 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 09:00:38,973 INFO L499 BasicCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 16, 15, 15, 14, 14, 13, 13, 12, 12, 12, 12, 12, 11, 11, 10, 10, 9, 9, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 09:00:38,973 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-04-06 09:00:38,973 INFO L403 AbstractCegarLoop]: === Iteration 51 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 09:00:38,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 09:00:38,973 INFO L85 PathProgramCache]: Analyzing trace with hash -591823516, now seen corresponding path program 1 times [2022-04-06 09:00:38,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 09:00:38,974 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2086567960] [2022-04-06 09:00:38,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 09:00:38,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 09:00:39,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 09:00:39,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 09:00:39,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 09:00:39,330 INFO L134 CoverageAnalysis]: Checked inductivity of 3438 backedges. 910 proven. 0 refuted. 0 times theorem prover too weak. 2528 trivial. 0 not checked. [2022-04-06 09:00:39,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 09:00:39,331 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2086567960] [2022-04-06 09:00:39,331 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2086567960] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 09:00:39,331 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 09:00:39,331 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-06 09:00:39,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185354393] [2022-04-06 09:00:39,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 09:00:39,331 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 09:00:39,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 09:00:39,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 09:00:39,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 09:00:39,332 INFO L87 Difference]: Start difference. First operand 8358 states and 12207 transitions. Second operand has 4 states, 4 states have (on average 52.75) internal successors, (211), 3 states have internal predecessors, (211), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 09:00:40,995 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 [] [2022-04-06 09:00:43,020 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 [] [2022-04-06 09:00:43,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 09:00:43,996 INFO L93 Difference]: Finished difference Result 8920 states and 13041 transitions. [2022-04-06 09:00:43,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 09:00:43,997 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 52.75) internal successors, (211), 3 states have internal predecessors, (211), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 612 [2022-04-06 09:00:43,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 09:00:44,005 INFO L225 Difference]: With dead ends: 8920 [2022-04-06 09:00:44,005 INFO L226 Difference]: Without dead ends: 8920 [2022-04-06 09:00:44,005 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 09:00:44,006 INFO L913 BasicCegarLoop]: 194 mSDtfsCounter, 158 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 290 mSolverCounterSat, 34 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 379 SdHoareTripleChecker+Invalid, 325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 290 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-04-06 09:00:44,006 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [158 Valid, 379 Invalid, 325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 290 Invalid, 1 Unknown, 0 Unchecked, 4.6s Time] [2022-04-06 09:00:44,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8920 states. [2022-04-06 09:00:44,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8920 to 8920. [2022-04-06 09:00:44,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8920 states, 8915 states have (on average 1.462366797532249) internal successors, (13037), 8915 states have internal predecessors, (13037), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 09:00:44,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8920 states to 8920 states and 13041 transitions. [2022-04-06 09:00:44,100 INFO L78 Accepts]: Start accepts. Automaton has 8920 states and 13041 transitions. Word has length 612 [2022-04-06 09:00:44,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 09:00:44,100 INFO L478 AbstractCegarLoop]: Abstraction has 8920 states and 13041 transitions. [2022-04-06 09:00:44,100 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 52.75) internal successors, (211), 3 states have internal predecessors, (211), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 09:00:44,101 INFO L276 IsEmpty]: Start isEmpty. Operand 8920 states and 13041 transitions. [2022-04-06 09:00:44,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 655 [2022-04-06 09:00:44,111 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 09:00:44,111 INFO L499 BasicCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 17, 17, 17, 17, 17, 17, 16, 16, 15, 15, 14, 14, 13, 13, 13, 13, 13, 12, 12, 11, 11, 10, 10, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 09:00:44,111 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-04-06 09:00:44,111 INFO L403 AbstractCegarLoop]: === Iteration 52 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 09:00:44,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 09:00:44,112 INFO L85 PathProgramCache]: Analyzing trace with hash 331960158, now seen corresponding path program 1 times [2022-04-06 09:00:44,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 09:00:44,112 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1719444833] [2022-04-06 09:00:44,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 09:00:44,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 09:00:44,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 09:00:44,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 09:00:44,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 09:00:44,831 INFO L134 CoverageAnalysis]: Checked inductivity of 3946 backedges. 1710 proven. 48 refuted. 0 times theorem prover too weak. 2188 trivial. 0 not checked. [2022-04-06 09:00:44,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 09:00:44,832 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1719444833] [2022-04-06 09:00:44,832 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1719444833] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-06 09:00:44,832 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1675499096] [2022-04-06 09:00:44,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 09:00:44,832 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-06 09:00:44,832 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-06 09:00:44,833 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) [2022-04-06 09:00:44,838 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-04-06 09:00:46,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 09:00:46,110 INFO L263 TraceCheckSpWp]: Trace formula consists of 2939 conjuncts, 34 conjunts are in the unsatisfiable core [2022-04-06 09:00:46,132 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-06 09:00:46,202 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-04-06 09:00:46,202 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-04-06 09:00:46,245 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-04-06 09:00:46,246 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2022-04-06 09:00:46,521 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2022-04-06 09:00:46,750 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-04-06 09:00:46,781 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 19 [2022-04-06 09:00:46,785 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 13 [2022-04-06 09:00:46,814 INFO L356 Elim1Store]: treesize reduction 60, result has 39.4 percent of original size [2022-04-06 09:00:46,815 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 55 [2022-04-06 09:00:46,901 INFO L356 Elim1Store]: treesize reduction 64, result has 22.9 percent of original size [2022-04-06 09:00:46,901 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 34 treesize of output 36 [2022-04-06 09:00:47,075 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-04-06 09:00:47,075 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 11 [2022-04-06 09:00:47,206 INFO L134 CoverageAnalysis]: Checked inductivity of 3946 backedges. 1705 proven. 256 refuted. 0 times theorem prover too weak. 1985 trivial. 0 not checked. [2022-04-06 09:00:47,206 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-06 09:00:47,539 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 53 [2022-04-06 09:00:47,541 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 41 [2022-04-06 09:00:49,591 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 190 treesize of output 172 [2022-04-06 09:00:49,982 INFO L134 CoverageAnalysis]: Checked inductivity of 3946 backedges. 1706 proven. 0 refuted. 0 times theorem prover too weak. 2240 trivial. 0 not checked. [2022-04-06 09:00:49,982 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1675499096] provided 1 perfect and 1 imperfect interpolant sequences [2022-04-06 09:00:49,982 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-04-06 09:00:49,983 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [11, 11] total 17 [2022-04-06 09:00:49,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130413845] [2022-04-06 09:00:49,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 09:00:49,983 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-04-06 09:00:49,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 09:00:49,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-04-06 09:00:49,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=225, Unknown=0, NotChecked=0, Total=272 [2022-04-06 09:00:49,984 INFO L87 Difference]: Start difference. First operand 8920 states and 13041 transitions. Second operand has 7 states, 7 states have (on average 32.0) internal successors, (224), 7 states have internal predecessors, (224), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 09:00:51,030 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 [] [2022-04-06 09:00:53,047 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 09:00:54,356 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 09:00:58,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 09:00:58,023 INFO L93 Difference]: Finished difference Result 15864 states and 23195 transitions. [2022-04-06 09:00:58,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-04-06 09:00:58,024 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 32.0) internal successors, (224), 7 states have internal predecessors, (224), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 654 [2022-04-06 09:00:58,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 09:00:58,037 INFO L225 Difference]: With dead ends: 15864 [2022-04-06 09:00:58,037 INFO L226 Difference]: Without dead ends: 15864 [2022-04-06 09:00:58,037 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 1326 GetRequests, 1307 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=76, Invalid=344, Unknown=0, NotChecked=0, Total=420 [2022-04-06 09:00:58,038 INFO L913 BasicCegarLoop]: 262 mSDtfsCounter, 278 mSDsluCounter, 890 mSDsCounter, 0 mSdLazyCounter, 632 mSolverCounterSat, 79 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 278 SdHoareTripleChecker+Valid, 1152 SdHoareTripleChecker+Invalid, 826 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 632 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 114 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-04-06 09:00:58,038 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [278 Valid, 1152 Invalid, 826 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 632 Invalid, 1 Unknown, 114 Unchecked, 5.0s Time] [2022-04-06 09:00:58,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15864 states. [2022-04-06 09:00:58,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15864 to 13715. [2022-04-06 09:00:58,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13715 states, 13710 states have (on average 1.47490882567469) internal successors, (20221), 13710 states have internal predecessors, (20221), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 09:00:58,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13715 states to 13715 states and 20225 transitions. [2022-04-06 09:00:58,150 INFO L78 Accepts]: Start accepts. Automaton has 13715 states and 20225 transitions. Word has length 654 [2022-04-06 09:00:58,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 09:00:58,150 INFO L478 AbstractCegarLoop]: Abstraction has 13715 states and 20225 transitions. [2022-04-06 09:00:58,150 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 32.0) internal successors, (224), 7 states have internal predecessors, (224), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 09:00:58,150 INFO L276 IsEmpty]: Start isEmpty. Operand 13715 states and 20225 transitions. [2022-04-06 09:00:58,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 657 [2022-04-06 09:00:58,165 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 09:00:58,165 INFO L499 BasicCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 17, 17, 17, 17, 17, 17, 16, 16, 15, 15, 14, 14, 13, 13, 13, 13, 13, 12, 12, 11, 11, 10, 10, 6, 6, 5, 4, 4, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 09:00:58,189 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-04-06 09:00:58,365 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-06 09:00:58,366 INFO L403 AbstractCegarLoop]: === Iteration 53 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 09:00:58,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 09:00:58,366 INFO L85 PathProgramCache]: Analyzing trace with hash -2044655492, now seen corresponding path program 1 times [2022-04-06 09:00:58,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 09:00:58,366 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795710776] [2022-04-06 09:00:58,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 09:00:58,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 09:00:58,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 09:00:58,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 09:00:58,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 09:00:58,659 INFO L134 CoverageAnalysis]: Checked inductivity of 3953 backedges. 2140 proven. 0 refuted. 0 times theorem prover too weak. 1813 trivial. 0 not checked. [2022-04-06 09:00:58,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 09:00:58,660 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795710776] [2022-04-06 09:00:58,660 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1795710776] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 09:00:58,660 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 09:00:58,660 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 09:00:58,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682231569] [2022-04-06 09:00:58,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 09:00:58,661 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 09:00:58,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 09:00:58,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 09:00:58,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 09:00:58,661 INFO L87 Difference]: Start difference. First operand 13715 states and 20225 transitions. Second operand has 5 states, 5 states have (on average 44.2) internal successors, (221), 4 states have internal predecessors, (221), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 09:01:00,701 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 [] [2022-04-06 09:01:02,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 09:01:02,859 INFO L93 Difference]: Finished difference Result 14762 states and 21608 transitions. [2022-04-06 09:01:02,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 09:01:02,863 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 44.2) internal successors, (221), 4 states have internal predecessors, (221), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 656 [2022-04-06 09:01:02,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 09:01:02,875 INFO L225 Difference]: With dead ends: 14762 [2022-04-06 09:01:02,875 INFO L226 Difference]: Without dead ends: 14762 [2022-04-06 09:01:02,876 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 09:01:02,876 INFO L913 BasicCegarLoop]: 286 mSDtfsCounter, 66 mSDsluCounter, 417 mSDsCounter, 0 mSdLazyCounter, 595 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 703 SdHoareTripleChecker+Invalid, 601 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 595 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-04-06 09:01:02,876 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [66 Valid, 703 Invalid, 601 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 595 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-04-06 09:01:02,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14762 states. [2022-04-06 09:01:02,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14762 to 13731. [2022-04-06 09:01:02,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13731 states, 13726 states have (on average 1.4743552382340084) internal successors, (20237), 13726 states have internal predecessors, (20237), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 09:01:02,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13731 states to 13731 states and 20241 transitions. [2022-04-06 09:01:02,993 INFO L78 Accepts]: Start accepts. Automaton has 13731 states and 20241 transitions. Word has length 656 [2022-04-06 09:01:02,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 09:01:02,993 INFO L478 AbstractCegarLoop]: Abstraction has 13731 states and 20241 transitions. [2022-04-06 09:01:02,994 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 44.2) internal successors, (221), 4 states have internal predecessors, (221), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 09:01:02,994 INFO L276 IsEmpty]: Start isEmpty. Operand 13731 states and 20241 transitions. [2022-04-06 09:01:03,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 699 [2022-04-06 09:01:03,009 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 09:01:03,009 INFO L499 BasicCegarLoop]: trace histogram [20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 19, 19, 19, 19, 19, 19, 18, 18, 15, 15, 14, 14, 13, 13, 13, 13, 13, 12, 12, 11, 11, 10, 10, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 09:01:03,009 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-04-06 09:01:03,009 INFO L403 AbstractCegarLoop]: === Iteration 54 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 09:01:03,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 09:01:03,009 INFO L85 PathProgramCache]: Analyzing trace with hash 88451326, now seen corresponding path program 1 times [2022-04-06 09:01:03,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 09:01:03,009 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216534235] [2022-04-06 09:01:03,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 09:01:03,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 09:01:03,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 09:01:03,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 09:01:03,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 09:01:03,388 INFO L134 CoverageAnalysis]: Checked inductivity of 4638 backedges. 2542 proven. 46 refuted. 0 times theorem prover too weak. 2050 trivial. 0 not checked. [2022-04-06 09:01:03,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 09:01:03,388 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1216534235] [2022-04-06 09:01:03,389 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1216534235] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-06 09:01:03,389 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1669279548] [2022-04-06 09:01:03,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 09:01:03,389 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-06 09:01:03,389 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-06 09:01:03,390 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-06 09:01:03,390 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-04-06 09:01:04,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 09:01:04,567 INFO L263 TraceCheckSpWp]: Trace formula consists of 3117 conjuncts, 23 conjunts are in the unsatisfiable core [2022-04-06 09:01:04,579 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-06 09:01:04,611 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-04-06 09:01:04,611 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-04-06 09:01:04,649 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-04-06 09:01:04,650 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2022-04-06 09:01:04,955 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2022-04-06 09:01:05,075 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-04-06 09:01:05,076 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-04-06 09:01:05,151 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-04-06 09:01:05,422 INFO L134 CoverageAnalysis]: Checked inductivity of 4638 backedges. 2537 proven. 238 refuted. 0 times theorem prover too weak. 1863 trivial. 0 not checked. [2022-04-06 09:01:05,422 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-06 09:01:06,119 INFO L134 CoverageAnalysis]: Checked inductivity of 4638 backedges. 2510 proven. 0 refuted. 0 times theorem prover too weak. 2128 trivial. 0 not checked. [2022-04-06 09:01:06,119 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1669279548] provided 1 perfect and 1 imperfect interpolant sequences [2022-04-06 09:01:06,119 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-04-06 09:01:06,119 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8, 8] total 11 [2022-04-06 09:01:06,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821924172] [2022-04-06 09:01:06,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 09:01:06,120 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 09:01:06,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 09:01:06,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 09:01:06,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-04-06 09:01:06,120 INFO L87 Difference]: Start difference. First operand 13731 states and 20241 transitions. Second operand has 4 states, 4 states have (on average 56.25) internal successors, (225), 4 states have internal predecessors, (225), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 09:01:08,132 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 09:01:08,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 09:01:08,424 INFO L93 Difference]: Finished difference Result 15570 states and 22723 transitions. [2022-04-06 09:01:08,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 09:01:08,424 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 56.25) internal successors, (225), 4 states have internal predecessors, (225), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 698 [2022-04-06 09:01:08,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 09:01:08,441 INFO L225 Difference]: With dead ends: 15570 [2022-04-06 09:01:08,441 INFO L226 Difference]: Without dead ends: 15570 [2022-04-06 09:01:08,442 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 1406 GetRequests, 1396 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2022-04-06 09:01:08,442 INFO L913 BasicCegarLoop]: 237 mSDtfsCounter, 120 mSDsluCounter, 360 mSDsCounter, 0 mSdLazyCounter, 248 mSolverCounterSat, 40 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 597 SdHoareTripleChecker+Invalid, 289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 248 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-04-06 09:01:08,442 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [120 Valid, 597 Invalid, 289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 248 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-04-06 09:01:08,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15570 states. [2022-04-06 09:01:08,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15570 to 13747. [2022-04-06 09:01:08,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13747 states, 13742 states have (on average 1.4726386261097366) internal successors, (20237), 13742 states have internal predecessors, (20237), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 09:01:08,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13747 states to 13747 states and 20241 transitions. [2022-04-06 09:01:08,571 INFO L78 Accepts]: Start accepts. Automaton has 13747 states and 20241 transitions. Word has length 698 [2022-04-06 09:01:08,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 09:01:08,571 INFO L478 AbstractCegarLoop]: Abstraction has 13747 states and 20241 transitions. [2022-04-06 09:01:08,572 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 56.25) internal successors, (225), 4 states have internal predecessors, (225), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 09:01:08,572 INFO L276 IsEmpty]: Start isEmpty. Operand 13747 states and 20241 transitions. [2022-04-06 09:01:08,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 701 [2022-04-06 09:01:08,588 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 09:01:08,588 INFO L499 BasicCegarLoop]: trace histogram [20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 19, 19, 19, 19, 19, 19, 18, 16, 15, 15, 14, 14, 13, 13, 13, 13, 13, 12, 12, 11, 11, 10, 10, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 09:01:08,618 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-04-06 09:01:08,788 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable53 [2022-04-06 09:01:08,789 INFO L403 AbstractCegarLoop]: === Iteration 55 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 09:01:08,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 09:01:08,789 INFO L85 PathProgramCache]: Analyzing trace with hash -1005383334, now seen corresponding path program 1 times [2022-04-06 09:01:08,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 09:01:08,790 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295563870] [2022-04-06 09:01:08,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 09:01:08,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 09:01:08,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 09:01:09,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 09:01:09,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 09:01:09,157 INFO L134 CoverageAnalysis]: Checked inductivity of 4611 backedges. 2511 proven. 0 refuted. 0 times theorem prover too weak. 2100 trivial. 0 not checked. [2022-04-06 09:01:09,157 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 09:01:09,157 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1295563870] [2022-04-06 09:01:09,157 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1295563870] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 09:01:09,157 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 09:01:09,157 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 09:01:09,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258882911] [2022-04-06 09:01:09,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 09:01:09,159 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 09:01:09,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 09:01:09,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 09:01:09,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 09:01:09,159 INFO L87 Difference]: Start difference. First operand 13747 states and 20241 transitions. Second operand has 5 states, 5 states have (on average 41.6) internal successors, (208), 4 states have internal predecessors, (208), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 09:01:11,168 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 09:01:11,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 09:01:11,646 INFO L93 Difference]: Finished difference Result 14666 states and 21426 transitions. [2022-04-06 09:01:11,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 09:01:11,646 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 41.6) internal successors, (208), 4 states have internal predecessors, (208), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 700 [2022-04-06 09:01:11,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 09:01:11,661 INFO L225 Difference]: With dead ends: 14666 [2022-04-06 09:01:11,662 INFO L226 Difference]: Without dead ends: 14666 [2022-04-06 09:01:11,662 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 09:01:11,662 INFO L913 BasicCegarLoop]: 282 mSDtfsCounter, 80 mSDsluCounter, 413 mSDsCounter, 0 mSdLazyCounter, 576 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 695 SdHoareTripleChecker+Invalid, 583 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 576 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-06 09:01:11,662 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [80 Valid, 695 Invalid, 583 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 576 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-04-06 09:01:11,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14666 states. [2022-04-06 09:01:11,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14666 to 13747. [2022-04-06 09:01:11,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13747 states, 13742 states have (on average 1.470601076990249) internal successors, (20209), 13742 states have internal predecessors, (20209), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 09:01:11,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13747 states to 13747 states and 20213 transitions. [2022-04-06 09:01:11,793 INFO L78 Accepts]: Start accepts. Automaton has 13747 states and 20213 transitions. Word has length 700 [2022-04-06 09:01:11,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 09:01:11,793 INFO L478 AbstractCegarLoop]: Abstraction has 13747 states and 20213 transitions. [2022-04-06 09:01:11,793 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 41.6) internal successors, (208), 4 states have internal predecessors, (208), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 09:01:11,793 INFO L276 IsEmpty]: Start isEmpty. Operand 13747 states and 20213 transitions. [2022-04-06 09:01:11,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 701 [2022-04-06 09:01:11,809 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 09:01:11,809 INFO L499 BasicCegarLoop]: trace histogram [20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 19, 19, 19, 19, 19, 19, 18, 18, 15, 15, 14, 14, 13, 13, 13, 13, 13, 12, 12, 11, 11, 10, 10, 6, 6, 5, 4, 4, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 09:01:11,809 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-04-06 09:01:11,809 INFO L403 AbstractCegarLoop]: === Iteration 56 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 09:01:11,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 09:01:11,810 INFO L85 PathProgramCache]: Analyzing trace with hash -539237120, now seen corresponding path program 1 times [2022-04-06 09:01:11,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 09:01:11,810 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070357215] [2022-04-06 09:01:11,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 09:01:11,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 09:01:11,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 09:01:12,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 09:01:12,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 09:01:12,175 INFO L134 CoverageAnalysis]: Checked inductivity of 4645 backedges. 2441 proven. 0 refuted. 0 times theorem prover too weak. 2204 trivial. 0 not checked. [2022-04-06 09:01:12,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 09:01:12,176 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070357215] [2022-04-06 09:01:12,176 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1070357215] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 09:01:12,176 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 09:01:12,176 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 09:01:12,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705398967] [2022-04-06 09:01:12,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 09:01:12,177 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 09:01:12,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 09:01:12,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 09:01:12,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 09:01:12,177 INFO L87 Difference]: Start difference. First operand 13747 states and 20213 transitions. Second operand has 5 states, 5 states have (on average 42.0) internal successors, (210), 4 states have internal predecessors, (210), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 09:01:13,855 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 09:01:15,902 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 09:01:17,147 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 09:01:19,166 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 [] [2022-04-06 09:01:19,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 09:01:19,552 INFO L93 Difference]: Finished difference Result 14867 states and 21739 transitions. [2022-04-06 09:01:19,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 09:01:19,552 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 42.0) internal successors, (210), 4 states have internal predecessors, (210), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 700 [2022-04-06 09:01:19,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 09:01:19,566 INFO L225 Difference]: With dead ends: 14867 [2022-04-06 09:01:19,566 INFO L226 Difference]: Without dead ends: 14867 [2022-04-06 09:01:19,566 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 09:01:19,570 INFO L913 BasicCegarLoop]: 254 mSDtfsCounter, 28 mSDsluCounter, 385 mSDsCounter, 0 mSdLazyCounter, 457 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 639 SdHoareTripleChecker+Invalid, 463 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 457 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2022-04-06 09:01:19,570 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 639 Invalid, 463 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 457 Invalid, 1 Unknown, 0 Unchecked, 7.3s Time] [2022-04-06 09:01:19,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14867 states. [2022-04-06 09:01:19,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14867 to 14475. [2022-04-06 09:01:19,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14475 states, 14470 states have (on average 1.4662750518313752) internal successors, (21217), 14470 states have internal predecessors, (21217), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 09:01:19,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14475 states to 14475 states and 21221 transitions. [2022-04-06 09:01:19,692 INFO L78 Accepts]: Start accepts. Automaton has 14475 states and 21221 transitions. Word has length 700 [2022-04-06 09:01:19,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 09:01:19,693 INFO L478 AbstractCegarLoop]: Abstraction has 14475 states and 21221 transitions. [2022-04-06 09:01:19,693 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 42.0) internal successors, (210), 4 states have internal predecessors, (210), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 09:01:19,693 INFO L276 IsEmpty]: Start isEmpty. Operand 14475 states and 21221 transitions. [2022-04-06 09:01:19,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 707 [2022-04-06 09:01:19,707 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 09:01:19,707 INFO L499 BasicCegarLoop]: trace histogram [20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 19, 19, 19, 19, 19, 19, 18, 18, 17, 17, 16, 16, 13, 13, 13, 13, 13, 12, 12, 11, 11, 10, 10, 6, 6, 5, 4, 4, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 09:01:19,707 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-04-06 09:01:19,707 INFO L403 AbstractCegarLoop]: === Iteration 57 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 09:01:19,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 09:01:19,708 INFO L85 PathProgramCache]: Analyzing trace with hash 876144030, now seen corresponding path program 1 times [2022-04-06 09:01:19,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 09:01:19,708 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976317966] [2022-04-06 09:01:19,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 09:01:19,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 09:01:19,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 09:01:20,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 09:01:20,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 09:01:20,007 INFO L134 CoverageAnalysis]: Checked inductivity of 4762 backedges. 2525 proven. 0 refuted. 0 times theorem prover too weak. 2237 trivial. 0 not checked. [2022-04-06 09:01:20,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 09:01:20,007 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [976317966] [2022-04-06 09:01:20,007 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [976317966] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 09:01:20,007 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 09:01:20,007 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 09:01:20,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158432505] [2022-04-06 09:01:20,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 09:01:20,007 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 09:01:20,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 09:01:20,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 09:01:20,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 09:01:20,008 INFO L87 Difference]: Start difference. First operand 14475 states and 21221 transitions. Second operand has 5 states, 5 states have (on average 42.4) internal successors, (212), 4 states have internal predecessors, (212), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 09:01:21,070 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 [] [2022-04-06 09:01:23,328 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 09:01:25,348 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 09:01:25,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 09:01:25,754 INFO L93 Difference]: Finished difference Result 14859 states and 21738 transitions. [2022-04-06 09:01:25,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 09:01:25,755 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 42.4) internal successors, (212), 4 states have internal predecessors, (212), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 706 [2022-04-06 09:01:25,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 09:01:25,767 INFO L225 Difference]: With dead ends: 14859 [2022-04-06 09:01:25,767 INFO L226 Difference]: Without dead ends: 14859 [2022-04-06 09:01:25,768 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 09:01:25,768 INFO L913 BasicCegarLoop]: 261 mSDtfsCounter, 42 mSDsluCounter, 393 mSDsCounter, 0 mSdLazyCounter, 505 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 654 SdHoareTripleChecker+Invalid, 513 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 505 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-04-06 09:01:25,768 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [42 Valid, 654 Invalid, 513 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 505 Invalid, 1 Unknown, 0 Unchecked, 5.7s Time] [2022-04-06 09:01:25,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14859 states. [2022-04-06 09:01:25,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14859 to 14475. [2022-04-06 09:01:25,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14475 states, 14470 states have (on average 1.4651693158258465) internal successors, (21201), 14470 states have internal predecessors, (21201), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 09:01:25,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14475 states to 14475 states and 21205 transitions. [2022-04-06 09:01:25,895 INFO L78 Accepts]: Start accepts. Automaton has 14475 states and 21205 transitions. Word has length 706 [2022-04-06 09:01:25,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 09:01:25,896 INFO L478 AbstractCegarLoop]: Abstraction has 14475 states and 21205 transitions. [2022-04-06 09:01:25,896 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 42.4) internal successors, (212), 4 states have internal predecessors, (212), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 09:01:25,896 INFO L276 IsEmpty]: Start isEmpty. Operand 14475 states and 21205 transitions. [2022-04-06 09:01:25,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 713 [2022-04-06 09:01:25,911 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 09:01:25,911 INFO L499 BasicCegarLoop]: trace histogram [20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 19, 19, 19, 19, 19, 19, 18, 18, 17, 17, 16, 16, 15, 15, 15, 15, 13, 12, 12, 11, 11, 10, 10, 6, 6, 4, 4, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 09:01:25,911 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-04-06 09:01:25,912 INFO L403 AbstractCegarLoop]: === Iteration 58 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 09:01:25,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 09:01:25,912 INFO L85 PathProgramCache]: Analyzing trace with hash 1995830594, now seen corresponding path program 1 times [2022-04-06 09:01:25,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 09:01:25,912 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441949387] [2022-04-06 09:01:25,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 09:01:25,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 09:01:26,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 09:01:26,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 09:01:26,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 09:01:26,719 INFO L134 CoverageAnalysis]: Checked inductivity of 4859 backedges. 2110 proven. 586 refuted. 0 times theorem prover too weak. 2163 trivial. 0 not checked. [2022-04-06 09:01:26,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 09:01:26,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441949387] [2022-04-06 09:01:26,719 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1441949387] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-06 09:01:26,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1449967377] [2022-04-06 09:01:26,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 09:01:26,719 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-06 09:01:26,719 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-06 09:01:26,720 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-06 09:01:26,722 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-04-06 09:01:27,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 09:01:27,982 INFO L263 TraceCheckSpWp]: Trace formula consists of 3123 conjuncts, 33 conjunts are in the unsatisfiable core [2022-04-06 09:01:27,990 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-06 09:01:28,066 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-04-06 09:01:28,066 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2022-04-06 09:01:28,331 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-04-06 09:01:28,331 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-04-06 09:01:28,415 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-04-06 09:01:28,416 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2022-04-06 09:01:28,567 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-04-06 09:01:28,592 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 19 [2022-04-06 09:01:28,595 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 13 [2022-04-06 09:01:28,608 INFO L356 Elim1Store]: treesize reduction 25, result has 43.2 percent of original size [2022-04-06 09:01:28,608 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 33 [2022-04-06 09:01:28,690 INFO L356 Elim1Store]: treesize reduction 66, result has 30.5 percent of original size [2022-04-06 09:01:28,690 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 45 [2022-04-06 09:01:28,774 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-04-06 09:01:28,774 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 23 [2022-04-06 09:01:28,845 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2022-04-06 09:01:28,980 INFO L134 CoverageAnalysis]: Checked inductivity of 4859 backedges. 2445 proven. 215 refuted. 0 times theorem prover too weak. 2199 trivial. 0 not checked. [2022-04-06 09:01:28,980 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-06 09:01:29,254 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 26 [2022-04-06 09:01:29,256 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 20 [2022-04-06 09:01:30,789 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 72 [2022-04-06 09:01:30,791 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 70 [2022-04-06 09:01:30,792 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 64 [2022-04-06 09:01:31,232 INFO L134 CoverageAnalysis]: Checked inductivity of 4859 backedges. 2258 proven. 0 refuted. 0 times theorem prover too weak. 2601 trivial. 0 not checked. [2022-04-06 09:01:31,233 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1449967377] provided 1 perfect and 1 imperfect interpolant sequences [2022-04-06 09:01:31,233 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-04-06 09:01:31,233 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [14, 9] total 22 [2022-04-06 09:01:31,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325963022] [2022-04-06 09:01:31,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 09:01:31,234 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 09:01:31,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 09:01:31,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 09:01:31,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=408, Unknown=0, NotChecked=0, Total=462 [2022-04-06 09:01:31,234 INFO L87 Difference]: Start difference. First operand 14475 states and 21205 transitions. Second operand has 5 states, 5 states have (on average 46.0) internal successors, (230), 5 states have internal predecessors, (230), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 09:01:31,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 09:01:31,403 INFO L93 Difference]: Finished difference Result 16425 states and 24140 transitions. [2022-04-06 09:01:31,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 09:01:31,404 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 46.0) internal successors, (230), 5 states have internal predecessors, (230), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 712 [2022-04-06 09:01:31,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 09:01:31,420 INFO L225 Difference]: With dead ends: 16425 [2022-04-06 09:01:31,420 INFO L226 Difference]: Without dead ends: 16425 [2022-04-06 09:01:31,421 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 1444 GetRequests, 1423 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=60, Invalid=446, Unknown=0, NotChecked=0, Total=506 [2022-04-06 09:01:31,421 INFO L913 BasicCegarLoop]: 314 mSDtfsCounter, 228 mSDsluCounter, 443 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 228 SdHoareTripleChecker+Valid, 757 SdHoareTripleChecker+Invalid, 271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 123 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-06 09:01:31,421 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [228 Valid, 757 Invalid, 271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 147 Invalid, 0 Unknown, 123 Unchecked, 0.1s Time] [2022-04-06 09:01:31,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16425 states. [2022-04-06 09:01:31,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16425 to 15499. [2022-04-06 09:01:31,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15499 states, 15494 states have (on average 1.4775396927843036) internal successors, (22893), 15494 states have internal predecessors, (22893), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 09:01:31,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15499 states to 15499 states and 22897 transitions. [2022-04-06 09:01:31,544 INFO L78 Accepts]: Start accepts. Automaton has 15499 states and 22897 transitions. Word has length 712 [2022-04-06 09:01:31,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 09:01:31,544 INFO L478 AbstractCegarLoop]: Abstraction has 15499 states and 22897 transitions. [2022-04-06 09:01:31,544 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 46.0) internal successors, (230), 5 states have internal predecessors, (230), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 09:01:31,544 INFO L276 IsEmpty]: Start isEmpty. Operand 15499 states and 22897 transitions. [2022-04-06 09:01:31,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 713 [2022-04-06 09:01:31,559 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 09:01:31,560 INFO L499 BasicCegarLoop]: trace histogram [20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 19, 19, 19, 19, 19, 19, 18, 18, 17, 17, 16, 16, 15, 15, 15, 13, 13, 12, 12, 11, 11, 10, 10, 6, 6, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 09:01:31,587 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-04-06 09:01:31,760 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-06 09:01:31,761 INFO L403 AbstractCegarLoop]: === Iteration 59 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 09:01:31,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 09:01:31,761 INFO L85 PathProgramCache]: Analyzing trace with hash 196231374, now seen corresponding path program 1 times [2022-04-06 09:01:31,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 09:01:31,761 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899591793] [2022-04-06 09:01:31,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 09:01:31,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 09:01:31,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 09:01:32,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 09:01:32,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 09:01:32,012 INFO L134 CoverageAnalysis]: Checked inductivity of 4839 backedges. 2578 proven. 0 refuted. 0 times theorem prover too weak. 2261 trivial. 0 not checked. [2022-04-06 09:01:32,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 09:01:32,012 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899591793] [2022-04-06 09:01:32,012 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1899591793] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 09:01:32,012 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 09:01:32,012 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 09:01:32,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423678624] [2022-04-06 09:01:32,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 09:01:32,013 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 09:01:32,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 09:01:32,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 09:01:32,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 09:01:32,013 INFO L87 Difference]: Start difference. First operand 15499 states and 22897 transitions. Second operand has 5 states, 5 states have (on average 43.2) internal successors, (216), 4 states have internal predecessors, (216), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 09:01:34,862 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 09:01:36,074 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 09:01:36,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 09:01:36,537 INFO L93 Difference]: Finished difference Result 17119 states and 25215 transitions. [2022-04-06 09:01:36,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 09:01:36,537 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 43.2) internal successors, (216), 4 states have internal predecessors, (216), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 712 [2022-04-06 09:01:36,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 09:01:36,553 INFO L225 Difference]: With dead ends: 17119 [2022-04-06 09:01:36,553 INFO L226 Difference]: Without dead ends: 17119 [2022-04-06 09:01:36,553 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 09:01:36,553 INFO L913 BasicCegarLoop]: 264 mSDtfsCounter, 44 mSDsluCounter, 395 mSDsCounter, 0 mSdLazyCounter, 535 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 659 SdHoareTripleChecker+Invalid, 544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 535 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-04-06 09:01:36,554 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [44 Valid, 659 Invalid, 544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 535 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2022-04-06 09:01:36,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17119 states. [2022-04-06 09:01:36,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17119 to 16363. [2022-04-06 09:01:36,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16363 states, 16358 states have (on average 1.4770143049272528) internal successors, (24161), 16358 states have internal predecessors, (24161), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 09:01:36,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16363 states to 16363 states and 24165 transitions. [2022-04-06 09:01:36,692 INFO L78 Accepts]: Start accepts. Automaton has 16363 states and 24165 transitions. Word has length 712 [2022-04-06 09:01:36,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 09:01:36,693 INFO L478 AbstractCegarLoop]: Abstraction has 16363 states and 24165 transitions. [2022-04-06 09:01:36,693 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 43.2) internal successors, (216), 4 states have internal predecessors, (216), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 09:01:36,693 INFO L276 IsEmpty]: Start isEmpty. Operand 16363 states and 24165 transitions. [2022-04-06 09:01:36,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 713 [2022-04-06 09:01:36,713 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 09:01:36,713 INFO L499 BasicCegarLoop]: trace histogram [20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 19, 19, 19, 19, 19, 19, 18, 18, 17, 17, 16, 16, 15, 15, 15, 15, 13, 12, 12, 11, 11, 10, 10, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 09:01:36,713 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-04-06 09:01:36,714 INFO L403 AbstractCegarLoop]: === Iteration 60 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 09:01:36,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 09:01:36,714 INFO L85 PathProgramCache]: Analyzing trace with hash 773050850, now seen corresponding path program 1 times [2022-04-06 09:01:36,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 09:01:36,714 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443146649] [2022-04-06 09:01:36,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 09:01:36,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 09:01:37,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 09:01:38,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 09:01:38,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 09:01:38,492 INFO L134 CoverageAnalysis]: Checked inductivity of 4859 backedges. 1563 proven. 2943 refuted. 0 times theorem prover too weak. 353 trivial. 0 not checked. [2022-04-06 09:01:38,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 09:01:38,492 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [443146649] [2022-04-06 09:01:38,492 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [443146649] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-06 09:01:38,493 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1631083713] [2022-04-06 09:01:38,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 09:01:38,493 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-06 09:01:38,493 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-06 09:01:38,494 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-06 09:01:38,494 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-04-06 09:01:40,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 09:01:40,031 INFO L263 TraceCheckSpWp]: Trace formula consists of 3125 conjuncts, 210 conjunts are in the unsatisfiable core [2022-04-06 09:01:40,046 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-06 09:01:57,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 09:02:10,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 09:02:31,299 INFO L190 IndexEqualityManager]: detected not equals via solver