/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.10.i.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-7968f31 [2022-03-17 18:55:33,176 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-17 18:55:33,178 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-17 18:55:33,220 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-17 18:55:33,220 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-17 18:55:33,221 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-17 18:55:33,222 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-17 18:55:33,223 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-17 18:55:33,225 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-17 18:55:33,229 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-17 18:55:33,229 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-17 18:55:33,230 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-17 18:55:33,231 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-17 18:55:33,231 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-17 18:55:33,232 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-17 18:55:33,233 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-17 18:55:33,233 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-17 18:55:33,234 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-17 18:55:33,235 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-17 18:55:33,236 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-17 18:55:33,237 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-03-17 18:55:33,238 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-17 18:55:33,239 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-17 18:55:33,239 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-17 18:55:33,240 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-17 18:55:33,242 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-03-17 18:55:33,242 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-03-17 18:55:33,242 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-03-17 18:55:33,243 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-03-17 18:55:33,243 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-03-17 18:55:33,244 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-03-17 18:55:33,244 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-03-17 18:55:33,245 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-03-17 18:55:33,245 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-03-17 18:55:33,246 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-03-17 18:55:33,246 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-03-17 18:55:33,247 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-03-17 18:55:33,247 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-03-17 18:55:33,247 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-03-17 18:55:33,248 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-17 18:55:33,248 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-17 18:55:33,249 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-17 18:55:33,250 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2022-03-17 18:55:33,260 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-17 18:55:33,261 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-17 18:55:33,263 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-17 18:55:33,263 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-17 18:55:33,263 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-17 18:55:33,263 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-17 18:55:33,263 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-17 18:55:33,263 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-17 18:55:33,264 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-17 18:55:33,264 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-17 18:55:33,264 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-17 18:55:33,264 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-17 18:55:33,265 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-17 18:55:33,265 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-17 18:55:33,265 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-17 18:55:33,265 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-17 18:55:33,265 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-17 18:55:33,265 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-17 18:55:33,265 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-17 18:55:33,265 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-17 18:55:33,266 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-17 18:55:33,266 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-03-17 18:55:33,266 INFO L138 SettingsManager]: * TransformationType=LOOP_ACCELERATION_JORDAN WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-03-17 18:55:33,459 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-17 18:55:33,487 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-17 18:55:33,489 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-17 18:55:33,490 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-17 18:55:33,490 INFO L275 PluginConnector]: CDTParser initialized [2022-03-17 18:55:33,491 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl/s3_srvr.blast.10.i.cil-2.c [2022-03-17 18:55:33,540 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2570ed0c1/3843352918184208b5cdd45d4b7208bc/FLAG1694df844 [2022-03-17 18:55:33,993 INFO L306 CDTParser]: Found 1 translation units. [2022-03-17 18:55:33,993 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.10.i.cil-2.c [2022-03-17 18:55:34,013 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2570ed0c1/3843352918184208b5cdd45d4b7208bc/FLAG1694df844 [2022-03-17 18:55:34,326 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2570ed0c1/3843352918184208b5cdd45d4b7208bc [2022-03-17 18:55:34,328 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-17 18:55:34,329 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-17 18:55:34,330 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-17 18:55:34,331 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-17 18:55:34,335 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-17 18:55:34,336 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 06:55:34" (1/1) ... [2022-03-17 18:55:34,337 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c4e4116 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:55:34, skipping insertion in model container [2022-03-17 18:55:34,337 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 06:55:34" (1/1) ... [2022-03-17 18:55:34,343 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-17 18:55:34,403 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-17 18:55:34,719 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.10.i.cil-2.c[73311,73324] [2022-03-17 18:55:34,726 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-17 18:55:34,741 INFO L203 MainTranslator]: Completed pre-run [2022-03-17 18:55:34,874 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.10.i.cil-2.c[73311,73324] [2022-03-17 18:55:34,877 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-17 18:55:34,900 INFO L208 MainTranslator]: Completed translation [2022-03-17 18:55:34,901 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:55:34 WrapperNode [2022-03-17 18:55:34,901 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-17 18:55:34,901 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-17 18:55:34,902 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-17 18:55:34,902 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-17 18:55:34,911 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:55:34" (1/1) ... [2022-03-17 18:55:34,911 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:55:34" (1/1) ... [2022-03-17 18:55:34,943 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:55:34" (1/1) ... [2022-03-17 18:55:34,943 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:55:34" (1/1) ... [2022-03-17 18:55:35,010 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:55:34" (1/1) ... [2022-03-17 18:55:35,025 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:55:34" (1/1) ... [2022-03-17 18:55:35,028 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:55:34" (1/1) ... [2022-03-17 18:55:35,033 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-17 18:55:35,034 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-17 18:55:35,034 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-17 18:55:35,034 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-17 18:55:35,037 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:55:34" (1/1) ... [2022-03-17 18:55:35,045 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-17 18:55:35,052 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-17 18:55:35,064 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-03-17 18:55:35,091 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-03-17 18:55:35,112 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-03-17 18:55:35,112 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-17 18:55:35,113 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-03-17 18:55:35,113 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_server_method [2022-03-17 18:55:35,113 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_server_method [2022-03-17 18:55:35,113 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-03-17 18:55:35,113 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-03-17 18:55:35,114 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-03-17 18:55:35,114 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-03-17 18:55:35,114 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-03-17 18:55:35,114 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-03-17 18:55:35,114 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-03-17 18:55:35,114 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-03-17 18:55:35,114 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-17 18:55:35,115 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-03-17 18:55:35,117 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-03-17 18:55:35,117 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-03-17 18:55:35,117 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-03-17 18:55:35,117 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-03-17 18:55:35,117 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-03-17 18:55:35,117 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_server_method [2022-03-17 18:55:35,117 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-03-17 18:55:35,118 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-03-17 18:55:35,118 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_server_method [2022-03-17 18:55:35,118 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-03-17 18:55:35,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-03-17 18:55:35,118 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-03-17 18:55:35,118 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-03-17 18:55:35,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-17 18:55:35,118 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-03-17 18:55:35,118 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-17 18:55:35,118 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-03-17 18:55:35,118 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-03-17 18:55:35,118 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-03-17 18:55:35,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-17 18:55:35,119 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-17 18:55:35,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-03-17 18:55:35,119 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-03-17 18:55:35,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-03-17 18:55:35,119 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-03-17 18:55:35,119 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-17 18:55:35,313 INFO L234 CfgBuilder]: Building ICFG [2022-03-17 18:55:35,314 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-17 18:55:35,958 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-17 18:55:36,458 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2022-03-17 18:55:36,458 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2022-03-17 18:55:36,471 INFO L275 CfgBuilder]: Performing block encoding [2022-03-17 18:55:36,482 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-17 18:55:36,482 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-03-17 18:55:36,484 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.03 06:55:36 BoogieIcfgContainer [2022-03-17 18:55:36,484 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-17 18:55:36,485 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-03-17 18:55:36,485 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-03-17 18:55:36,486 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-03-17 18:55:36,489 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.03 06:55:36" (1/1) ... [2022-03-17 18:55:36,545 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 17.03 06:55:36 BasicIcfg [2022-03-17 18:55:36,545 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-03-17 18:55:36,548 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-17 18:55:36,549 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-17 18:55:36,551 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-17 18:55:36,551 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.03 06:55:34" (1/4) ... [2022-03-17 18:55:36,552 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@237fa0b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 06:55:36, skipping insertion in model container [2022-03-17 18:55:36,552 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:55:34" (2/4) ... [2022-03-17 18:55:36,552 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@237fa0b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 06:55:36, skipping insertion in model container [2022-03-17 18:55:36,553 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.03 06:55:36" (3/4) ... [2022-03-17 18:55:36,554 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@237fa0b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.03 06:55:36, skipping insertion in model container [2022-03-17 18:55:36,554 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 17.03 06:55:36" (4/4) ... [2022-03-17 18:55:36,555 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr.blast.10.i.cil-2.cJordan [2022-03-17 18:55:36,560 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2022-03-17 18:55:36,561 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-17 18:55:36,611 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-17 18:55:36,617 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=ForwardPredicates, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP [2022-03-17 18:55:36,618 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-03-17 18:55:36,640 INFO L276 IsEmpty]: Start isEmpty. Operand has 155 states, 147 states have (on average 1.7006802721088434) internal successors, (250), 148 states have internal predecessors, (250), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-03-17 18:55:36,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-03-17 18:55:36,656 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:55:36,657 INFO L500 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:55:36,657 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:55:36,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:55:36,661 INFO L85 PathProgramCache]: Analyzing trace with hash -2072103194, now seen corresponding path program 1 times [2022-03-17 18:55:36,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:55:36,669 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689048462] [2022-03-17 18:55:36,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:55:36,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:55:36,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:55:37,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:55:37,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:55:37,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 18:55:37,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:55:37,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689048462] [2022-03-17 18:55:37,233 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1689048462] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:55:37,233 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:55:37,233 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:55:37,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980693382] [2022-03-17 18:55:37,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:55:37,241 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:55:37,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:55:37,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:55:37,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:55:37,270 INFO L87 Difference]: Start difference. First operand has 155 states, 147 states have (on average 1.7006802721088434) internal successors, (250), 148 states have internal predecessors, (250), 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 8.8) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:55:40,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:55:40,334 INFO L93 Difference]: Finished difference Result 281 states and 465 transitions. [2022-03-17 18:55:40,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:55:40,336 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 48 [2022-03-17 18:55:40,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:55:40,345 INFO L225 Difference]: With dead ends: 281 [2022-03-17 18:55:40,345 INFO L226 Difference]: Without dead ends: 255 [2022-03-17 18:55:40,346 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:55:40,349 INFO L912 BasicCegarLoop]: 152 mSDtfsCounter, 148 mSDsluCounter, 293 mSDsCounter, 0 mSdLazyCounter, 530 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 445 SdHoareTripleChecker+Invalid, 593 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 530 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-03-17 18:55:40,349 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 445 Invalid, 593 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 530 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-03-17 18:55:40,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2022-03-17 18:55:40,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 179. [2022-03-17 18:55:40,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 174 states have (on average 1.5977011494252873) internal successors, (278), 174 states have internal predecessors, (278), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:55:40,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 282 transitions. [2022-03-17 18:55:40,387 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 282 transitions. Word has length 48 [2022-03-17 18:55:40,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:55:40,387 INFO L478 AbstractCegarLoop]: Abstraction has 179 states and 282 transitions. [2022-03-17 18:55:40,388 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:55:40,388 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 282 transitions. [2022-03-17 18:55:40,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-03-17 18:55:40,390 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:55:40,390 INFO L500 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:55:40,390 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-17 18:55:40,390 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:55:40,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:55:40,391 INFO L85 PathProgramCache]: Analyzing trace with hash 190260629, now seen corresponding path program 1 times [2022-03-17 18:55:40,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:55:40,391 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828589567] [2022-03-17 18:55:40,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:55:40,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:55:40,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:55:40,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:55:40,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:55:40,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 18:55:40,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:55:40,571 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828589567] [2022-03-17 18:55:40,572 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [828589567] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:55:40,573 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:55:40,573 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:55:40,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500988681] [2022-03-17 18:55:40,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:55:40,577 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:55:40,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:55:40,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:55:40,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:55:40,578 INFO L87 Difference]: Start difference. First operand 179 states and 282 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:55:44,553 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:55:45,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:55:45,108 INFO L93 Difference]: Finished difference Result 294 states and 459 transitions. [2022-03-17 18:55:45,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:55:45,109 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 49 [2022-03-17 18:55:45,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:55:45,111 INFO L225 Difference]: With dead ends: 294 [2022-03-17 18:55:45,111 INFO L226 Difference]: Without dead ends: 294 [2022-03-17 18:55:45,111 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:55:45,112 INFO L912 BasicCegarLoop]: 119 mSDtfsCounter, 115 mSDsluCounter, 221 mSDsCounter, 0 mSdLazyCounter, 478 mSolverCounterSat, 62 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 340 SdHoareTripleChecker+Invalid, 541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 478 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-03-17 18:55:45,113 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [115 Valid, 340 Invalid, 541 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 478 Invalid, 1 Unknown, 0 Unchecked, 4.5s Time] [2022-03-17 18:55:45,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2022-03-17 18:55:45,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 219. [2022-03-17 18:55:45,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 214 states have (on average 1.644859813084112) internal successors, (352), 214 states have internal predecessors, (352), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:55:45,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 356 transitions. [2022-03-17 18:55:45,126 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 356 transitions. Word has length 49 [2022-03-17 18:55:45,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:55:45,126 INFO L478 AbstractCegarLoop]: Abstraction has 219 states and 356 transitions. [2022-03-17 18:55:45,126 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:55:45,126 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 356 transitions. [2022-03-17 18:55:45,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-03-17 18:55:45,129 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:55:45,129 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:55:45,129 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-17 18:55:45,129 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:55:45,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:55:45,130 INFO L85 PathProgramCache]: Analyzing trace with hash -205061924, now seen corresponding path program 1 times [2022-03-17 18:55:45,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:55:45,130 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102806535] [2022-03-17 18:55:45,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:55:45,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:55:45,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:55:45,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:55:45,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:55:45,309 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-03-17 18:55:45,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:55:45,310 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102806535] [2022-03-17 18:55:45,310 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1102806535] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:55:45,310 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:55:45,310 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:55:45,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953432869] [2022-03-17 18:55:45,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:55:45,311 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:55:45,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:55:45,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:55:45,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:55:45,312 INFO L87 Difference]: Start difference. First operand 219 states and 356 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:55:48,578 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:55:49,960 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:55:50,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:55:50,393 INFO L93 Difference]: Finished difference Result 247 states and 396 transitions. [2022-03-17 18:55:50,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:55:50,394 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 77 [2022-03-17 18:55:50,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:55:50,395 INFO L225 Difference]: With dead ends: 247 [2022-03-17 18:55:50,395 INFO L226 Difference]: Without dead ends: 247 [2022-03-17 18:55:50,396 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:55:50,397 INFO L912 BasicCegarLoop]: 180 mSDtfsCounter, 22 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 360 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 463 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 360 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-03-17 18:55:50,397 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 463 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 360 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2022-03-17 18:55:50,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states. [2022-03-17 18:55:50,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 230. [2022-03-17 18:55:50,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 225 states have (on average 1.6488888888888888) internal successors, (371), 225 states have internal predecessors, (371), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:55:50,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 375 transitions. [2022-03-17 18:55:50,406 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 375 transitions. Word has length 77 [2022-03-17 18:55:50,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:55:50,406 INFO L478 AbstractCegarLoop]: Abstraction has 230 states and 375 transitions. [2022-03-17 18:55:50,406 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:55:50,407 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 375 transitions. [2022-03-17 18:55:50,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-03-17 18:55:50,409 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:55:50,409 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:55:50,409 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-17 18:55:50,409 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:55:50,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:55:50,410 INFO L85 PathProgramCache]: Analyzing trace with hash 432563086, now seen corresponding path program 1 times [2022-03-17 18:55:50,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:55:50,410 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497869535] [2022-03-17 18:55:50,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:55:50,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:55:50,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:55:50,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:55:50,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:55:50,554 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-03-17 18:55:50,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:55:50,555 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1497869535] [2022-03-17 18:55:50,558 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1497869535] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:55:50,558 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:55:50,558 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:55:50,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662508393] [2022-03-17 18:55:50,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:55:50,559 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:55:50,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:55:50,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:55:50,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:55:50,560 INFO L87 Difference]: Start difference. First operand 230 states and 375 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:55:53,613 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:55:55,635 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:55:56,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:55:56,020 INFO L93 Difference]: Finished difference Result 247 states and 395 transitions. [2022-03-17 18:55:56,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:55:56,020 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 90 [2022-03-17 18:55:56,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:55:56,021 INFO L225 Difference]: With dead ends: 247 [2022-03-17 18:55:56,022 INFO L226 Difference]: Without dead ends: 247 [2022-03-17 18:55:56,022 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:55:56,023 INFO L912 BasicCegarLoop]: 181 mSDtfsCounter, 24 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 357 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 465 SdHoareTripleChecker+Invalid, 368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 357 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-03-17 18:55:56,023 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 465 Invalid, 368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 357 Invalid, 1 Unknown, 0 Unchecked, 5.4s Time] [2022-03-17 18:55:56,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states. [2022-03-17 18:55:56,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 230. [2022-03-17 18:55:56,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 225 states have (on average 1.6444444444444444) internal successors, (370), 225 states have internal predecessors, (370), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:55:56,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 374 transitions. [2022-03-17 18:55:56,031 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 374 transitions. Word has length 90 [2022-03-17 18:55:56,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:55:56,031 INFO L478 AbstractCegarLoop]: Abstraction has 230 states and 374 transitions. [2022-03-17 18:55:56,031 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:55:56,031 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 374 transitions. [2022-03-17 18:55:56,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-17 18:55:56,033 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:55:56,033 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:55:56,033 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-17 18:55:56,033 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:55:56,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:55:56,034 INFO L85 PathProgramCache]: Analyzing trace with hash -1446851934, now seen corresponding path program 1 times [2022-03-17 18:55:56,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:55:56,034 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865566137] [2022-03-17 18:55:56,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:55:56,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:55:56,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:55:56,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:55:56,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:55:56,145 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-03-17 18:55:56,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:55:56,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1865566137] [2022-03-17 18:55:56,146 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1865566137] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:55:56,146 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:55:56,146 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:55:56,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587740403] [2022-03-17 18:55:56,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:55:56,146 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:55:56,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:55:56,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:55:56,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:55:56,147 INFO L87 Difference]: Start difference. First operand 230 states and 374 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:55:59,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:55:59,489 INFO L93 Difference]: Finished difference Result 246 states and 393 transitions. [2022-03-17 18:55:59,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:55:59,489 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 91 [2022-03-17 18:55:59,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:55:59,490 INFO L225 Difference]: With dead ends: 246 [2022-03-17 18:55:59,491 INFO L226 Difference]: Without dead ends: 246 [2022-03-17 18:55:59,491 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:55:59,492 INFO L912 BasicCegarLoop]: 182 mSDtfsCounter, 28 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 356 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 467 SdHoareTripleChecker+Invalid, 365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-03-17 18:55:59,492 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 467 Invalid, 365 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 356 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-03-17 18:55:59,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2022-03-17 18:55:59,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 230. [2022-03-17 18:55:59,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 225 states have (on average 1.64) internal successors, (369), 225 states have internal predecessors, (369), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:55:59,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 373 transitions. [2022-03-17 18:55:59,498 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 373 transitions. Word has length 91 [2022-03-17 18:55:59,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:55:59,499 INFO L478 AbstractCegarLoop]: Abstraction has 230 states and 373 transitions. [2022-03-17 18:55:59,499 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:55:59,499 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 373 transitions. [2022-03-17 18:55:59,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-17 18:55:59,500 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:55:59,500 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:55:59,500 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-17 18:55:59,500 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:55:59,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:55:59,501 INFO L85 PathProgramCache]: Analyzing trace with hash -136188286, now seen corresponding path program 1 times [2022-03-17 18:55:59,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:55:59,501 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1357804912] [2022-03-17 18:55:59,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:55:59,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:55:59,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:55:59,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:55:59,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:55:59,672 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-03-17 18:55:59,672 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:55:59,672 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1357804912] [2022-03-17 18:55:59,672 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1357804912] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:55:59,672 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:55:59,673 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:55:59,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993367322] [2022-03-17 18:55:59,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:55:59,673 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:55:59,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:55:59,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:55:59,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:55:59,675 INFO L87 Difference]: Start difference. First operand 230 states and 373 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:56:00,776 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:56:03,872 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:56:04,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:56:04,389 INFO L93 Difference]: Finished difference Result 305 states and 473 transitions. [2022-03-17 18:56:04,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:56:04,389 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 91 [2022-03-17 18:56:04,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:56:04,391 INFO L225 Difference]: With dead ends: 305 [2022-03-17 18:56:04,391 INFO L226 Difference]: Without dead ends: 305 [2022-03-17 18:56:04,392 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:56:04,392 INFO L912 BasicCegarLoop]: 119 mSDtfsCounter, 142 mSDsluCounter, 221 mSDsCounter, 0 mSdLazyCounter, 478 mSolverCounterSat, 62 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 340 SdHoareTripleChecker+Invalid, 541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 478 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-03-17 18:56:04,393 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [142 Valid, 340 Invalid, 541 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 478 Invalid, 1 Unknown, 0 Unchecked, 4.7s Time] [2022-03-17 18:56:04,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states. [2022-03-17 18:56:04,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 230. [2022-03-17 18:56:04,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 225 states have (on average 1.6266666666666667) internal successors, (366), 225 states have internal predecessors, (366), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:56:04,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 370 transitions. [2022-03-17 18:56:04,399 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 370 transitions. Word has length 91 [2022-03-17 18:56:04,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:56:04,399 INFO L478 AbstractCegarLoop]: Abstraction has 230 states and 370 transitions. [2022-03-17 18:56:04,399 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) [2022-03-17 18:56:04,399 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 370 transitions. [2022-03-17 18:56:04,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-17 18:56:04,400 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:56:04,400 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:56:04,400 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-17 18:56:04,400 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:56:04,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:56:04,401 INFO L85 PathProgramCache]: Analyzing trace with hash 1894337090, now seen corresponding path program 1 times [2022-03-17 18:56:04,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:56:04,401 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679115119] [2022-03-17 18:56:04,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:56:04,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:56:04,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:56:04,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:56:04,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:56:04,514 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-03-17 18:56:04,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:56:04,515 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [679115119] [2022-03-17 18:56:04,515 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [679115119] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:56:04,515 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:56:04,515 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:56:04,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009862918] [2022-03-17 18:56:04,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:56:04,515 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:56:04,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:56:04,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:56:04,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:56:04,516 INFO L87 Difference]: Start difference. First operand 230 states and 370 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:56:05,977 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:56:07,996 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:56:10,018 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:56:12,057 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:56:12,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:56:12,458 INFO L93 Difference]: Finished difference Result 244 states and 387 transitions. [2022-03-17 18:56:12,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:56:12,458 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 91 [2022-03-17 18:56:12,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:56:12,460 INFO L225 Difference]: With dead ends: 244 [2022-03-17 18:56:12,460 INFO L226 Difference]: Without dead ends: 244 [2022-03-17 18:56:12,460 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:56:12,461 INFO L912 BasicCegarLoop]: 184 mSDtfsCounter, 20 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 349 mSolverCounterSat, 8 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 471 SdHoareTripleChecker+Invalid, 360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 349 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2022-03-17 18:56:12,461 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 471 Invalid, 360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 349 Invalid, 3 Unknown, 0 Unchecked, 7.9s Time] [2022-03-17 18:56:12,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2022-03-17 18:56:12,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 230. [2022-03-17 18:56:12,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 225 states have (on average 1.6222222222222222) internal successors, (365), 225 states have internal predecessors, (365), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:56:12,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 369 transitions. [2022-03-17 18:56:12,466 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 369 transitions. Word has length 91 [2022-03-17 18:56:12,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:56:12,467 INFO L478 AbstractCegarLoop]: Abstraction has 230 states and 369 transitions. [2022-03-17 18:56:12,467 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:56:12,467 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 369 transitions. [2022-03-17 18:56:12,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-17 18:56:12,472 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:56:12,472 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:56:12,473 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-03-17 18:56:12,473 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:56:12,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:56:12,473 INFO L85 PathProgramCache]: Analyzing trace with hash -1071343838, now seen corresponding path program 1 times [2022-03-17 18:56:12,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:56:12,473 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086358315] [2022-03-17 18:56:12,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:56:12,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:56:12,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:56:12,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:56:12,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:56:12,611 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-03-17 18:56:12,611 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:56:12,611 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1086358315] [2022-03-17 18:56:12,611 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1086358315] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:56:12,612 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:56:12,612 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:56:12,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851221136] [2022-03-17 18:56:12,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:56:12,612 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:56:12,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:56:12,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:56:12,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:56:12,613 INFO L87 Difference]: Start difference. First operand 230 states and 369 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:56:15,324 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:56:16,626 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:56:17,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:56:17,482 INFO L93 Difference]: Finished difference Result 243 states and 385 transitions. [2022-03-17 18:56:17,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:56:17,482 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 91 [2022-03-17 18:56:17,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:56:17,484 INFO L225 Difference]: With dead ends: 243 [2022-03-17 18:56:17,484 INFO L226 Difference]: Without dead ends: 243 [2022-03-17 18:56:17,484 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:56:17,485 INFO L912 BasicCegarLoop]: 185 mSDtfsCounter, 18 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 350 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 473 SdHoareTripleChecker+Invalid, 358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 350 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-03-17 18:56:17,485 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 473 Invalid, 358 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 350 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2022-03-17 18:56:17,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2022-03-17 18:56:17,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 230. [2022-03-17 18:56:17,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 225 states have (on average 1.6177777777777778) internal successors, (364), 225 states have internal predecessors, (364), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:56:17,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 368 transitions. [2022-03-17 18:56:17,489 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 368 transitions. Word has length 91 [2022-03-17 18:56:17,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:56:17,490 INFO L478 AbstractCegarLoop]: Abstraction has 230 states and 368 transitions. [2022-03-17 18:56:17,490 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:56:17,490 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 368 transitions. [2022-03-17 18:56:17,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-03-17 18:56:17,491 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:56:17,491 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:56:17,491 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-03-17 18:56:17,491 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:56:17,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:56:17,492 INFO L85 PathProgramCache]: Analyzing trace with hash 951939982, now seen corresponding path program 1 times [2022-03-17 18:56:17,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:56:17,492 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665340264] [2022-03-17 18:56:17,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:56:17,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:56:17,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:56:17,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:56:17,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:56:17,616 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-03-17 18:56:17,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:56:17,617 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665340264] [2022-03-17 18:56:17,617 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1665340264] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:56:17,617 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:56:17,617 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:56:17,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772421372] [2022-03-17 18:56:17,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:56:17,618 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:56:17,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:56:17,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:56:17,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:56:17,619 INFO L87 Difference]: Start difference. First operand 230 states and 368 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:56:19,089 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:56:21,225 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:56:22,405 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:56:22,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:56:22,766 INFO L93 Difference]: Finished difference Result 243 states and 384 transitions. [2022-03-17 18:56:22,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:56:22,767 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 92 [2022-03-17 18:56:22,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:56:22,768 INFO L225 Difference]: With dead ends: 243 [2022-03-17 18:56:22,768 INFO L226 Difference]: Without dead ends: 243 [2022-03-17 18:56:22,769 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:56:22,769 INFO L912 BasicCegarLoop]: 185 mSDtfsCounter, 22 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 350 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 473 SdHoareTripleChecker+Invalid, 358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 350 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-03-17 18:56:22,769 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 473 Invalid, 358 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 350 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2022-03-17 18:56:22,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2022-03-17 18:56:22,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 230. [2022-03-17 18:56:22,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 225 states have (on average 1.6133333333333333) internal successors, (363), 225 states have internal predecessors, (363), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:56:22,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 367 transitions. [2022-03-17 18:56:22,774 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 367 transitions. Word has length 92 [2022-03-17 18:56:22,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:56:22,774 INFO L478 AbstractCegarLoop]: Abstraction has 230 states and 367 transitions. [2022-03-17 18:56:22,775 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:56:22,775 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 367 transitions. [2022-03-17 18:56:22,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-03-17 18:56:22,775 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:56:22,776 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:56:22,776 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-03-17 18:56:22,776 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:56:22,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:56:22,776 INFO L85 PathProgramCache]: Analyzing trace with hash 2098623614, now seen corresponding path program 1 times [2022-03-17 18:56:22,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:56:22,777 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [79935295] [2022-03-17 18:56:22,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:56:22,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:56:22,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:56:22,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:56:22,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:56:22,903 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-03-17 18:56:22,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:56:22,903 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [79935295] [2022-03-17 18:56:22,904 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [79935295] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:56:22,904 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:56:22,904 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:56:22,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668563888] [2022-03-17 18:56:22,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:56:22,904 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:56:22,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:56:22,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:56:22,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:56:22,910 INFO L87 Difference]: Start difference. First operand 230 states and 367 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:56:24,392 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:56:27,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:56:27,140 INFO L93 Difference]: Finished difference Result 305 states and 467 transitions. [2022-03-17 18:56:27,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:56:27,140 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 93 [2022-03-17 18:56:27,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:56:27,142 INFO L225 Difference]: With dead ends: 305 [2022-03-17 18:56:27,142 INFO L226 Difference]: Without dead ends: 305 [2022-03-17 18:56:27,142 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:56:27,143 INFO L912 BasicCegarLoop]: 119 mSDtfsCounter, 139 mSDsluCounter, 221 mSDsCounter, 0 mSdLazyCounter, 479 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 340 SdHoareTripleChecker+Invalid, 541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 479 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-03-17 18:56:27,143 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [139 Valid, 340 Invalid, 541 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 479 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2022-03-17 18:56:27,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states. [2022-03-17 18:56:27,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 230. [2022-03-17 18:56:27,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 225 states have (on average 1.6) internal successors, (360), 225 states have internal predecessors, (360), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:56:27,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 364 transitions. [2022-03-17 18:56:27,148 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 364 transitions. Word has length 93 [2022-03-17 18:56:27,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:56:27,149 INFO L478 AbstractCegarLoop]: Abstraction has 230 states and 364 transitions. [2022-03-17 18:56:27,149 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:56:27,149 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 364 transitions. [2022-03-17 18:56:27,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-03-17 18:56:27,150 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:56:27,150 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:56:27,150 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-03-17 18:56:27,150 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:56:27,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:56:27,151 INFO L85 PathProgramCache]: Analyzing trace with hash 321944811, now seen corresponding path program 1 times [2022-03-17 18:56:27,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:56:27,151 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [22482410] [2022-03-17 18:56:27,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:56:27,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:56:27,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:56:27,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:56:27,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:56:27,251 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-03-17 18:56:27,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:56:27,252 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [22482410] [2022-03-17 18:56:27,252 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [22482410] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:56:27,252 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:56:27,252 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:56:27,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333185346] [2022-03-17 18:56:27,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:56:27,252 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:56:27,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:56:27,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:56:27,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:56:27,253 INFO L87 Difference]: Start difference. First operand 230 states and 364 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:56:28,379 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:56:31,016 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:56:32,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:56:32,079 INFO L93 Difference]: Finished difference Result 305 states and 464 transitions. [2022-03-17 18:56:32,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:56:32,080 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 94 [2022-03-17 18:56:32,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:56:32,081 INFO L225 Difference]: With dead ends: 305 [2022-03-17 18:56:32,081 INFO L226 Difference]: Without dead ends: 305 [2022-03-17 18:56:32,082 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:56:32,082 INFO L912 BasicCegarLoop]: 119 mSDtfsCounter, 137 mSDsluCounter, 221 mSDsCounter, 0 mSdLazyCounter, 478 mSolverCounterSat, 62 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 340 SdHoareTripleChecker+Invalid, 541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 478 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-03-17 18:56:32,083 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [137 Valid, 340 Invalid, 541 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 478 Invalid, 1 Unknown, 0 Unchecked, 4.8s Time] [2022-03-17 18:56:32,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states. [2022-03-17 18:56:32,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 230. [2022-03-17 18:56:32,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 225 states have (on average 1.5866666666666667) internal successors, (357), 225 states have internal predecessors, (357), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:56:32,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 361 transitions. [2022-03-17 18:56:32,088 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 361 transitions. Word has length 94 [2022-03-17 18:56:32,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:56:32,088 INFO L478 AbstractCegarLoop]: Abstraction has 230 states and 361 transitions. [2022-03-17 18:56:32,088 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:56:32,088 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 361 transitions. [2022-03-17 18:56:32,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-03-17 18:56:32,089 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:56:32,089 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:56:32,090 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-03-17 18:56:32,090 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:56:32,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:56:32,090 INFO L85 PathProgramCache]: Analyzing trace with hash 994781404, now seen corresponding path program 1 times [2022-03-17 18:56:32,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:56:32,090 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1808914309] [2022-03-17 18:56:32,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:56:32,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:56:32,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:56:32,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:56:32,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:56:32,197 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 18:56:32,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:56:32,197 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1808914309] [2022-03-17 18:56:32,197 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1808914309] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:56:32,197 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:56:32,197 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:56:32,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080621357] [2022-03-17 18:56:32,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:56:32,198 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:56:32,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:56:32,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:56:32,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:56:32,199 INFO L87 Difference]: Start difference. First operand 230 states and 361 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:56:33,560 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:56:34,766 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:56:36,782 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:56:38,761 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:56:39,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:56:39,223 INFO L93 Difference]: Finished difference Result 381 states and 598 transitions. [2022-03-17 18:56:39,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:56:39,223 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 94 [2022-03-17 18:56:39,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:56:39,225 INFO L225 Difference]: With dead ends: 381 [2022-03-17 18:56:39,225 INFO L226 Difference]: Without dead ends: 381 [2022-03-17 18:56:39,225 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:56:39,226 INFO L912 BasicCegarLoop]: 117 mSDtfsCounter, 119 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 465 mSolverCounterSat, 51 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 336 SdHoareTripleChecker+Invalid, 517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 465 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2022-03-17 18:56:39,226 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 336 Invalid, 517 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 465 Invalid, 1 Unknown, 0 Unchecked, 7.0s Time] [2022-03-17 18:56:39,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states. [2022-03-17 18:56:39,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 294. [2022-03-17 18:56:39,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 294 states, 289 states have (on average 1.6159169550173011) internal successors, (467), 289 states have internal predecessors, (467), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:56:39,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 471 transitions. [2022-03-17 18:56:39,232 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 471 transitions. Word has length 94 [2022-03-17 18:56:39,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:56:39,232 INFO L478 AbstractCegarLoop]: Abstraction has 294 states and 471 transitions. [2022-03-17 18:56:39,232 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:56:39,232 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 471 transitions. [2022-03-17 18:56:39,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-03-17 18:56:39,233 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:56:39,233 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:56:39,234 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-03-17 18:56:39,234 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:56:39,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:56:39,234 INFO L85 PathProgramCache]: Analyzing trace with hash 1036101631, now seen corresponding path program 1 times [2022-03-17 18:56:39,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:56:39,234 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822780151] [2022-03-17 18:56:39,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:56:39,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:56:39,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:56:39,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:56:39,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:56:39,352 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-03-17 18:56:39,352 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:56:39,352 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822780151] [2022-03-17 18:56:39,352 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1822780151] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:56:39,353 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:56:39,353 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:56:39,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536171780] [2022-03-17 18:56:39,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:56:39,353 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:56:39,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:56:39,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:56:39,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:56:39,354 INFO L87 Difference]: Start difference. First operand 294 states and 471 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:56:42,366 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:56:43,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:56:43,271 INFO L93 Difference]: Finished difference Result 337 states and 533 transitions. [2022-03-17 18:56:43,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:56:43,272 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 99 [2022-03-17 18:56:43,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:56:43,273 INFO L225 Difference]: With dead ends: 337 [2022-03-17 18:56:43,273 INFO L226 Difference]: Without dead ends: 337 [2022-03-17 18:56:43,274 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:56:43,274 INFO L912 BasicCegarLoop]: 188 mSDtfsCounter, 31 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 392 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 485 SdHoareTripleChecker+Invalid, 403 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 392 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-03-17 18:56:43,274 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [31 Valid, 485 Invalid, 403 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 392 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2022-03-17 18:56:43,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2022-03-17 18:56:43,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 316. [2022-03-17 18:56:43,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 316 states, 311 states have (on average 1.6141479099678457) internal successors, (502), 311 states have internal predecessors, (502), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:56:43,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 506 transitions. [2022-03-17 18:56:43,280 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 506 transitions. Word has length 99 [2022-03-17 18:56:43,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:56:43,281 INFO L478 AbstractCegarLoop]: Abstraction has 316 states and 506 transitions. [2022-03-17 18:56:43,281 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:56:43,281 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 506 transitions. [2022-03-17 18:56:43,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-03-17 18:56:43,282 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:56:43,282 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:56:43,282 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-03-17 18:56:43,282 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:56:43,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:56:43,283 INFO L85 PathProgramCache]: Analyzing trace with hash -800769138, now seen corresponding path program 1 times [2022-03-17 18:56:43,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:56:43,283 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004776559] [2022-03-17 18:56:43,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:56:43,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:56:43,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:56:43,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:56:43,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:56:43,396 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-03-17 18:56:43,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:56:43,397 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2004776559] [2022-03-17 18:56:43,397 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2004776559] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:56:43,397 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:56:43,397 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:56:43,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439460579] [2022-03-17 18:56:43,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:56:43,397 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:56:43,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:56:43,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:56:43,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:56:43,399 INFO L87 Difference]: Start difference. First operand 316 states and 506 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) [2022-03-17 18:56:45,684 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:56:47,705 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:56:49,456 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:56:49,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:56:49,847 INFO L93 Difference]: Finished difference Result 337 states and 532 transitions. [2022-03-17 18:56:49,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:56:49,848 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 107 [2022-03-17 18:56:49,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:56:49,849 INFO L225 Difference]: With dead ends: 337 [2022-03-17 18:56:49,849 INFO L226 Difference]: Without dead ends: 337 [2022-03-17 18:56:49,849 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:56:49,850 INFO L912 BasicCegarLoop]: 189 mSDtfsCounter, 36 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 390 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 485 SdHoareTripleChecker+Invalid, 402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 390 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2022-03-17 18:56:49,850 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 485 Invalid, 402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 390 Invalid, 1 Unknown, 0 Unchecked, 6.4s Time] [2022-03-17 18:56:49,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2022-03-17 18:56:49,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 316. [2022-03-17 18:56:49,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 316 states, 311 states have (on average 1.6109324758842443) internal successors, (501), 311 states have internal predecessors, (501), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:56:49,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 505 transitions. [2022-03-17 18:56:49,856 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 505 transitions. Word has length 107 [2022-03-17 18:56:49,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:56:49,856 INFO L478 AbstractCegarLoop]: Abstraction has 316 states and 505 transitions. [2022-03-17 18:56:49,856 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) [2022-03-17 18:56:49,857 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 505 transitions. [2022-03-17 18:56:49,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-03-17 18:56:49,857 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:56:49,858 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:56:49,858 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-03-17 18:56:49,858 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:56:49,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:56:49,858 INFO L85 PathProgramCache]: Analyzing trace with hash -1979223486, now seen corresponding path program 1 times [2022-03-17 18:56:49,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:56:49,858 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126407885] [2022-03-17 18:56:49,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:56:49,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:56:49,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:56:49,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:56:49,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:56:49,963 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-03-17 18:56:49,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:56:49,964 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126407885] [2022-03-17 18:56:49,964 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1126407885] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:56:49,964 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:56:49,964 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:56:49,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081109288] [2022-03-17 18:56:49,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:56:49,964 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:56:49,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:56:49,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:56:49,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:56:49,965 INFO L87 Difference]: Start difference. First operand 316 states and 505 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:56:52,189 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:56:54,281 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:56:54,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:56:54,661 INFO L93 Difference]: Finished difference Result 335 states and 529 transitions. [2022-03-17 18:56:54,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:56:54,662 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 108 [2022-03-17 18:56:54,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:56:54,663 INFO L225 Difference]: With dead ends: 335 [2022-03-17 18:56:54,664 INFO L226 Difference]: Without dead ends: 335 [2022-03-17 18:56:54,664 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:56:54,664 INFO L912 BasicCegarLoop]: 191 mSDtfsCounter, 34 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 387 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 489 SdHoareTripleChecker+Invalid, 397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 387 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-03-17 18:56:54,665 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 489 Invalid, 397 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 387 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2022-03-17 18:56:54,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335 states. [2022-03-17 18:56:54,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 335 to 316. [2022-03-17 18:56:54,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 316 states, 311 states have (on average 1.607717041800643) internal successors, (500), 311 states have internal predecessors, (500), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:56:54,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 504 transitions. [2022-03-17 18:56:54,670 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 504 transitions. Word has length 108 [2022-03-17 18:56:54,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:56:54,671 INFO L478 AbstractCegarLoop]: Abstraction has 316 states and 504 transitions. [2022-03-17 18:56:54,671 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:56:54,671 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 504 transitions. [2022-03-17 18:56:54,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-03-17 18:56:54,672 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:56:54,672 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:56:54,672 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-03-17 18:56:54,672 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:56:54,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:56:54,673 INFO L85 PathProgramCache]: Analyzing trace with hash 2067859961, now seen corresponding path program 1 times [2022-03-17 18:56:54,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:56:54,673 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536980607] [2022-03-17 18:56:54,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:56:54,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:56:54,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:56:54,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:56:54,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:56:54,800 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-03-17 18:56:54,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:56:54,800 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1536980607] [2022-03-17 18:56:54,802 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1536980607] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:56:54,802 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:56:54,802 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:56:54,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170103027] [2022-03-17 18:56:54,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:56:54,802 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:56:54,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:56:54,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:56:54,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:56:54,803 INFO L87 Difference]: Start difference. First operand 316 states and 504 transitions. Second operand has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:56:57,509 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:56:59,532 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:56:59,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:56:59,893 INFO L93 Difference]: Finished difference Result 345 states and 543 transitions. [2022-03-17 18:56:59,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:56:59,893 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 113 [2022-03-17 18:56:59,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:56:59,896 INFO L225 Difference]: With dead ends: 345 [2022-03-17 18:56:59,896 INFO L226 Difference]: Without dead ends: 345 [2022-03-17 18:56:59,896 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:56:59,896 INFO L912 BasicCegarLoop]: 221 mSDtfsCounter, 19 mSDsluCounter, 329 mSDsCounter, 0 mSdLazyCounter, 389 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 550 SdHoareTripleChecker+Invalid, 400 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 389 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-03-17 18:56:59,897 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 550 Invalid, 400 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 389 Invalid, 1 Unknown, 0 Unchecked, 5.1s Time] [2022-03-17 18:56:59,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2022-03-17 18:56:59,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 332. [2022-03-17 18:56:59,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 332 states, 327 states have (on average 1.599388379204893) internal successors, (523), 327 states have internal predecessors, (523), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:56:59,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 527 transitions. [2022-03-17 18:56:59,904 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 527 transitions. Word has length 113 [2022-03-17 18:56:59,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:56:59,904 INFO L478 AbstractCegarLoop]: Abstraction has 332 states and 527 transitions. [2022-03-17 18:56:59,904 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:56:59,904 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 527 transitions. [2022-03-17 18:56:59,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-03-17 18:56:59,905 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:56:59,905 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:56:59,905 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-03-17 18:56:59,906 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:56:59,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:56:59,906 INFO L85 PathProgramCache]: Analyzing trace with hash 814419321, now seen corresponding path program 1 times [2022-03-17 18:56:59,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:56:59,906 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895910593] [2022-03-17 18:56:59,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:56:59,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:56:59,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:57:00,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:57:00,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:57:00,029 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-03-17 18:57:00,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:57:00,029 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895910593] [2022-03-17 18:57:00,029 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1895910593] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:57:00,030 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:57:00,030 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:57:00,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413585239] [2022-03-17 18:57:00,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:57:00,030 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:57:00,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:57:00,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:57:00,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:57:00,031 INFO L87 Difference]: Start difference. First operand 332 states and 527 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:57:02,562 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:57:04,531 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.97s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:57:05,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:57:05,629 INFO L93 Difference]: Finished difference Result 406 states and 624 transitions. [2022-03-17 18:57:05,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:57:05,630 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 113 [2022-03-17 18:57:05,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:57:05,631 INFO L225 Difference]: With dead ends: 406 [2022-03-17 18:57:05,631 INFO L226 Difference]: Without dead ends: 406 [2022-03-17 18:57:05,632 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:57:05,632 INFO L912 BasicCegarLoop]: 112 mSDtfsCounter, 134 mSDsluCounter, 214 mSDsCounter, 0 mSdLazyCounter, 468 mSolverCounterSat, 63 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 326 SdHoareTripleChecker+Invalid, 532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 468 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-03-17 18:57:05,632 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [134 Valid, 326 Invalid, 532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 468 Invalid, 1 Unknown, 0 Unchecked, 5.6s Time] [2022-03-17 18:57:05,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 406 states. [2022-03-17 18:57:05,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 406 to 332. [2022-03-17 18:57:05,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 332 states, 327 states have (on average 1.584097859327217) internal successors, (518), 327 states have internal predecessors, (518), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:57:05,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 522 transitions. [2022-03-17 18:57:05,639 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 522 transitions. Word has length 113 [2022-03-17 18:57:05,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:57:05,639 INFO L478 AbstractCegarLoop]: Abstraction has 332 states and 522 transitions. [2022-03-17 18:57:05,639 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:57:05,639 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 522 transitions. [2022-03-17 18:57:05,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-03-17 18:57:05,640 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:57:05,640 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:57:05,640 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-03-17 18:57:05,640 INFO L403 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:57:05,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:57:05,641 INFO L85 PathProgramCache]: Analyzing trace with hash 1270943240, now seen corresponding path program 1 times [2022-03-17 18:57:05,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:57:05,641 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195042724] [2022-03-17 18:57:05,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:57:05,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:57:05,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:57:05,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:57:05,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:57:05,767 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-03-17 18:57:05,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:57:05,767 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195042724] [2022-03-17 18:57:05,767 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1195042724] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:57:05,791 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:57:05,791 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-17 18:57:05,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649055617] [2022-03-17 18:57:05,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:57:05,792 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-17 18:57:05,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:57:05,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-17 18:57:05,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:57:05,792 INFO L87 Difference]: Start difference. First operand 332 states and 522 transitions. Second operand has 6 states, 6 states have (on average 13.0) internal successors, (78), 5 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:57:06,836 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:57:08,763 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:57:10,067 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:57:12,087 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:57:12,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:57:12,450 INFO L93 Difference]: Finished difference Result 341 states and 533 transitions. [2022-03-17 18:57:12,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-17 18:57:12,450 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 5 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 114 [2022-03-17 18:57:12,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:57:12,451 INFO L225 Difference]: With dead ends: 341 [2022-03-17 18:57:12,451 INFO L226 Difference]: Without dead ends: 341 [2022-03-17 18:57:12,451 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-03-17 18:57:12,452 INFO L912 BasicCegarLoop]: 197 mSDtfsCounter, 3 mSDsluCounter, 412 mSDsCounter, 0 mSdLazyCounter, 429 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 609 SdHoareTripleChecker+Invalid, 434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 429 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2022-03-17 18:57:12,452 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 609 Invalid, 434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 429 Invalid, 1 Unknown, 0 Unchecked, 6.6s Time] [2022-03-17 18:57:12,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2022-03-17 18:57:12,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 341. [2022-03-17 18:57:12,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 341 states, 336 states have (on average 1.5744047619047619) internal successors, (529), 336 states have internal predecessors, (529), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:57:12,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 533 transitions. [2022-03-17 18:57:12,458 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 533 transitions. Word has length 114 [2022-03-17 18:57:12,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:57:12,458 INFO L478 AbstractCegarLoop]: Abstraction has 341 states and 533 transitions. [2022-03-17 18:57:12,458 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 5 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:57:12,459 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 533 transitions. [2022-03-17 18:57:12,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-03-17 18:57:12,460 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:57:12,460 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:57:12,460 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-03-17 18:57:12,460 INFO L403 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:57:12,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:57:12,460 INFO L85 PathProgramCache]: Analyzing trace with hash 111216116, now seen corresponding path program 1 times [2022-03-17 18:57:12,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:57:12,461 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634806339] [2022-03-17 18:57:12,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:57:12,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:57:12,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:57:12,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:57:12,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:57:12,564 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-03-17 18:57:12,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:57:12,565 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1634806339] [2022-03-17 18:57:12,565 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1634806339] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:57:12,565 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:57:12,565 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:57:12,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381426031] [2022-03-17 18:57:12,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:57:12,565 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:57:12,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:57:12,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:57:12,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:57:12,566 INFO L87 Difference]: Start difference. First operand 341 states and 533 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:57:13,701 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:57:15,021 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:57:17,042 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:57:17,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:57:17,879 INFO L93 Difference]: Finished difference Result 358 states and 554 transitions. [2022-03-17 18:57:17,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:57:17,879 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 115 [2022-03-17 18:57:17,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:57:17,881 INFO L225 Difference]: With dead ends: 358 [2022-03-17 18:57:17,881 INFO L226 Difference]: Without dead ends: 358 [2022-03-17 18:57:17,881 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:57:17,882 INFO L912 BasicCegarLoop]: 193 mSDtfsCounter, 35 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 382 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 493 SdHoareTripleChecker+Invalid, 393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 382 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-03-17 18:57:17,882 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [35 Valid, 493 Invalid, 393 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 382 Invalid, 1 Unknown, 0 Unchecked, 5.3s Time] [2022-03-17 18:57:17,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2022-03-17 18:57:17,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 341. [2022-03-17 18:57:17,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 341 states, 336 states have (on average 1.5714285714285714) internal successors, (528), 336 states have internal predecessors, (528), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:57:17,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 532 transitions. [2022-03-17 18:57:17,887 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 532 transitions. Word has length 115 [2022-03-17 18:57:17,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:57:17,888 INFO L478 AbstractCegarLoop]: Abstraction has 341 states and 532 transitions. [2022-03-17 18:57:17,888 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:57:17,888 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 532 transitions. [2022-03-17 18:57:17,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-03-17 18:57:17,889 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:57:17,889 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:57:17,889 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-03-17 18:57:17,889 INFO L403 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:57:17,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:57:17,890 INFO L85 PathProgramCache]: Analyzing trace with hash -676854904, now seen corresponding path program 1 times [2022-03-17 18:57:17,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:57:17,890 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773815847] [2022-03-17 18:57:17,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:57:17,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:57:17,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:57:17,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:57:17,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:57:18,023 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2022-03-17 18:57:18,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:57:18,024 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773815847] [2022-03-17 18:57:18,024 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1773815847] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:57:18,024 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:57:18,024 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:57:18,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787695766] [2022-03-17 18:57:18,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:57:18,024 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:57:18,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:57:18,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:57:18,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:57:18,025 INFO L87 Difference]: Start difference. First operand 341 states and 532 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:57:20,999 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:57:23,014 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:57:23,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:57:23,395 INFO L93 Difference]: Finished difference Result 348 states and 541 transitions. [2022-03-17 18:57:23,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:57:23,395 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 121 [2022-03-17 18:57:23,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:57:23,397 INFO L225 Difference]: With dead ends: 348 [2022-03-17 18:57:23,397 INFO L226 Difference]: Without dead ends: 348 [2022-03-17 18:57:23,397 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:57:23,397 INFO L912 BasicCegarLoop]: 200 mSDtfsCounter, 30 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 368 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 507 SdHoareTripleChecker+Invalid, 374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 368 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-03-17 18:57:23,398 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 507 Invalid, 374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 368 Invalid, 1 Unknown, 0 Unchecked, 5.4s Time] [2022-03-17 18:57:23,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2022-03-17 18:57:23,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 341. [2022-03-17 18:57:23,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 341 states, 336 states have (on average 1.568452380952381) internal successors, (527), 336 states have internal predecessors, (527), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:57:23,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 531 transitions. [2022-03-17 18:57:23,403 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 531 transitions. Word has length 121 [2022-03-17 18:57:23,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:57:23,403 INFO L478 AbstractCegarLoop]: Abstraction has 341 states and 531 transitions. [2022-03-17 18:57:23,403 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:57:23,404 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 531 transitions. [2022-03-17 18:57:23,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-03-17 18:57:23,405 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:57:23,405 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:57:23,405 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-03-17 18:57:23,405 INFO L403 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:57:23,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:57:23,406 INFO L85 PathProgramCache]: Analyzing trace with hash -494174528, now seen corresponding path program 1 times [2022-03-17 18:57:23,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:57:23,407 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691806201] [2022-03-17 18:57:23,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:57:23,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:57:23,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:57:23,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:57:23,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:57:23,577 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-17 18:57:23,577 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:57:23,577 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691806201] [2022-03-17 18:57:23,577 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1691806201] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:57:23,577 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:57:23,577 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:57:23,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614449730] [2022-03-17 18:57:23,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:57:23,578 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:57:23,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:57:23,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:57:23,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:57:23,579 INFO L87 Difference]: Start difference. First operand 341 states and 531 transitions. Second operand has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:57:25,855 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:57:27,822 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 [] [2022-03-17 18:57:28,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:57:28,233 INFO L93 Difference]: Finished difference Result 464 states and 710 transitions. [2022-03-17 18:57:28,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:57:28,234 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 121 [2022-03-17 18:57:28,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:57:28,235 INFO L225 Difference]: With dead ends: 464 [2022-03-17 18:57:28,235 INFO L226 Difference]: Without dead ends: 464 [2022-03-17 18:57:28,236 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:57:28,236 INFO L912 BasicCegarLoop]: 112 mSDtfsCounter, 114 mSDsluCounter, 214 mSDsCounter, 0 mSdLazyCounter, 470 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 326 SdHoareTripleChecker+Invalid, 530 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 470 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-03-17 18:57:28,236 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [114 Valid, 326 Invalid, 530 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 470 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2022-03-17 18:57:28,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2022-03-17 18:57:28,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 378. [2022-03-17 18:57:28,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 378 states, 373 states have (on average 1.579088471849866) internal successors, (589), 373 states have internal predecessors, (589), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:57:28,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 378 states and 593 transitions. [2022-03-17 18:57:28,243 INFO L78 Accepts]: Start accepts. Automaton has 378 states and 593 transitions. Word has length 121 [2022-03-17 18:57:28,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:57:28,243 INFO L478 AbstractCegarLoop]: Abstraction has 378 states and 593 transitions. [2022-03-17 18:57:28,243 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:57:28,243 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 593 transitions. [2022-03-17 18:57:28,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-03-17 18:57:28,244 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:57:28,244 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:57:28,244 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-03-17 18:57:28,245 INFO L403 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:57:28,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:57:28,245 INFO L85 PathProgramCache]: Analyzing trace with hash 208718188, now seen corresponding path program 1 times [2022-03-17 18:57:28,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:57:28,245 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832878674] [2022-03-17 18:57:28,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:57:28,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:57:28,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:57:28,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:57:28,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:57:28,392 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-17 18:57:28,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:57:28,393 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832878674] [2022-03-17 18:57:28,393 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [832878674] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:57:28,393 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:57:28,393 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:57:28,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968205856] [2022-03-17 18:57:28,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:57:28,393 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:57:28,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:57:28,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:57:28,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:57:28,394 INFO L87 Difference]: Start difference. First operand 378 states and 593 transitions. Second operand has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:57:29,791 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:57:32,418 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:57:32,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:57:32,835 INFO L93 Difference]: Finished difference Result 461 states and 704 transitions. [2022-03-17 18:57:32,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:57:32,836 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 122 [2022-03-17 18:57:32,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:57:32,837 INFO L225 Difference]: With dead ends: 461 [2022-03-17 18:57:32,838 INFO L226 Difference]: Without dead ends: 461 [2022-03-17 18:57:32,838 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:57:32,838 INFO L912 BasicCegarLoop]: 120 mSDtfsCounter, 113 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 342 SdHoareTripleChecker+Invalid, 537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-03-17 18:57:32,839 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [113 Valid, 342 Invalid, 537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 477 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2022-03-17 18:57:32,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 461 states. [2022-03-17 18:57:32,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 461 to 378. [2022-03-17 18:57:32,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 378 states, 373 states have (on average 1.5737265415549597) internal successors, (587), 373 states have internal predecessors, (587), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:57:32,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 378 states and 591 transitions. [2022-03-17 18:57:32,845 INFO L78 Accepts]: Start accepts. Automaton has 378 states and 591 transitions. Word has length 122 [2022-03-17 18:57:32,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:57:32,845 INFO L478 AbstractCegarLoop]: Abstraction has 378 states and 591 transitions. [2022-03-17 18:57:32,845 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:57:32,845 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 591 transitions. [2022-03-17 18:57:32,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-03-17 18:57:32,846 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:57:32,846 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:57:32,846 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-03-17 18:57:32,846 INFO L403 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:57:32,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:57:32,847 INFO L85 PathProgramCache]: Analyzing trace with hash -1737440945, now seen corresponding path program 1 times [2022-03-17 18:57:32,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:57:32,847 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271988862] [2022-03-17 18:57:32,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:57:32,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:57:32,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:57:32,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:57:32,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:57:32,968 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-17 18:57:32,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:57:32,968 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1271988862] [2022-03-17 18:57:32,969 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1271988862] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:57:32,969 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:57:32,969 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:57:32,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473966135] [2022-03-17 18:57:32,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:57:32,969 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:57:32,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:57:32,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:57:32,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:57:32,970 INFO L87 Difference]: Start difference. First operand 378 states and 591 transitions. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:57:35,227 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:57:36,249 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:57:36,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:57:36,679 INFO L93 Difference]: Finished difference Result 461 states and 699 transitions. [2022-03-17 18:57:36,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:57:36,680 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 129 [2022-03-17 18:57:36,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:57:36,681 INFO L225 Difference]: With dead ends: 461 [2022-03-17 18:57:36,682 INFO L226 Difference]: Without dead ends: 461 [2022-03-17 18:57:36,682 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:57:36,682 INFO L912 BasicCegarLoop]: 120 mSDtfsCounter, 134 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 478 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 342 SdHoareTripleChecker+Invalid, 536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 478 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-03-17 18:57:36,683 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [134 Valid, 342 Invalid, 536 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 478 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-03-17 18:57:36,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 461 states. [2022-03-17 18:57:36,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 461 to 378. [2022-03-17 18:57:36,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 378 states, 373 states have (on average 1.5603217158176943) internal successors, (582), 373 states have internal predecessors, (582), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:57:36,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 378 states and 586 transitions. [2022-03-17 18:57:36,689 INFO L78 Accepts]: Start accepts. Automaton has 378 states and 586 transitions. Word has length 129 [2022-03-17 18:57:36,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:57:36,690 INFO L478 AbstractCegarLoop]: Abstraction has 378 states and 586 transitions. [2022-03-17 18:57:36,690 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:57:36,690 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 586 transitions. [2022-03-17 18:57:36,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-03-17 18:57:36,691 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:57:36,691 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:57:36,691 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-03-17 18:57:36,691 INFO L403 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:57:36,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:57:36,692 INFO L85 PathProgramCache]: Analyzing trace with hash -951278431, now seen corresponding path program 1 times [2022-03-17 18:57:36,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:57:36,692 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318213454] [2022-03-17 18:57:36,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:57:36,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:57:36,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:57:36,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:57:36,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:57:36,817 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 101 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-17 18:57:36,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:57:36,817 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1318213454] [2022-03-17 18:57:36,817 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1318213454] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:57:36,818 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:57:36,818 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:57:36,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556989460] [2022-03-17 18:57:36,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:57:36,818 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:57:36,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:57:36,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:57:36,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:57:36,819 INFO L87 Difference]: Start difference. First operand 378 states and 586 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:57:38,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:57:38,793 INFO L93 Difference]: Finished difference Result 461 states and 694 transitions. [2022-03-17 18:57:38,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:57:38,794 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 130 [2022-03-17 18:57:38,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:57:38,795 INFO L225 Difference]: With dead ends: 461 [2022-03-17 18:57:38,795 INFO L226 Difference]: Without dead ends: 461 [2022-03-17 18:57:38,795 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:57:38,796 INFO L912 BasicCegarLoop]: 112 mSDtfsCounter, 133 mSDsluCounter, 214 mSDsCounter, 0 mSdLazyCounter, 469 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 326 SdHoareTripleChecker+Invalid, 531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-03-17 18:57:38,796 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [133 Valid, 326 Invalid, 531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 469 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-03-17 18:57:38,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 461 states. [2022-03-17 18:57:38,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 461 to 378. [2022-03-17 18:57:38,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 378 states, 373 states have (on average 1.5469168900804289) internal successors, (577), 373 states have internal predecessors, (577), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:57:38,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 378 states and 581 transitions. [2022-03-17 18:57:38,802 INFO L78 Accepts]: Start accepts. Automaton has 378 states and 581 transitions. Word has length 130 [2022-03-17 18:57:38,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:57:38,803 INFO L478 AbstractCegarLoop]: Abstraction has 378 states and 581 transitions. [2022-03-17 18:57:38,803 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:57:38,803 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 581 transitions. [2022-03-17 18:57:38,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-03-17 18:57:38,804 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:57:38,804 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:57:38,804 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-03-17 18:57:38,804 INFO L403 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:57:38,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:57:38,805 INFO L85 PathProgramCache]: Analyzing trace with hash 85923637, now seen corresponding path program 1 times [2022-03-17 18:57:38,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:57:38,805 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [569769385] [2022-03-17 18:57:38,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:57:38,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:57:38,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:57:38,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:57:38,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:57:38,920 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-17 18:57:38,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:57:38,920 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [569769385] [2022-03-17 18:57:38,921 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [569769385] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:57:38,921 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:57:38,921 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:57:38,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617373718] [2022-03-17 18:57:38,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:57:38,921 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:57:38,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:57:38,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:57:38,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:57:38,922 INFO L87 Difference]: Start difference. First operand 378 states and 581 transitions. Second operand has 5 states, 5 states have (on average 23.2) internal successors, (116), 4 states have internal predecessors, (116), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:57:41,229 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:57:42,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:57:42,346 INFO L93 Difference]: Finished difference Result 471 states and 714 transitions. [2022-03-17 18:57:42,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:57:42,347 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 4 states have internal predecessors, (116), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 130 [2022-03-17 18:57:42,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:57:42,348 INFO L225 Difference]: With dead ends: 471 [2022-03-17 18:57:42,348 INFO L226 Difference]: Without dead ends: 471 [2022-03-17 18:57:42,348 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:57:42,349 INFO L912 BasicCegarLoop]: 176 mSDtfsCounter, 61 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 492 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 461 SdHoareTripleChecker+Invalid, 504 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 492 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-03-17 18:57:42,349 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [61 Valid, 461 Invalid, 504 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 492 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-03-17 18:57:42,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 471 states. [2022-03-17 18:57:42,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 471 to 421. [2022-03-17 18:57:42,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 421 states, 416 states have (on average 1.5480769230769231) internal successors, (644), 416 states have internal predecessors, (644), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:57:42,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 648 transitions. [2022-03-17 18:57:42,356 INFO L78 Accepts]: Start accepts. Automaton has 421 states and 648 transitions. Word has length 130 [2022-03-17 18:57:42,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:57:42,356 INFO L478 AbstractCegarLoop]: Abstraction has 421 states and 648 transitions. [2022-03-17 18:57:42,356 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 4 states have internal predecessors, (116), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:57:42,356 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 648 transitions. [2022-03-17 18:57:42,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-03-17 18:57:42,357 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:57:42,357 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:57:42,358 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-03-17 18:57:42,358 INFO L403 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:57:42,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:57:42,358 INFO L85 PathProgramCache]: Analyzing trace with hash 869302612, now seen corresponding path program 1 times [2022-03-17 18:57:42,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:57:42,358 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820424546] [2022-03-17 18:57:42,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:57:42,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:57:42,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:57:42,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:57:42,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:57:42,465 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-03-17 18:57:42,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:57:42,465 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820424546] [2022-03-17 18:57:42,465 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [820424546] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:57:42,466 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:57:42,466 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:57:42,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418420432] [2022-03-17 18:57:42,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:57:42,466 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:57:42,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:57:42,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:57:42,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:57:42,467 INFO L87 Difference]: Start difference. First operand 421 states and 648 transitions. Second operand has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:57:44,870 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:57:46,426 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:57:48,448 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:57:48,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:57:48,821 INFO L93 Difference]: Finished difference Result 476 states and 724 transitions. [2022-03-17 18:57:48,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:57:48,822 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 130 [2022-03-17 18:57:48,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:57:48,823 INFO L225 Difference]: With dead ends: 476 [2022-03-17 18:57:48,823 INFO L226 Difference]: Without dead ends: 476 [2022-03-17 18:57:48,823 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:57:48,824 INFO L912 BasicCegarLoop]: 237 mSDtfsCounter, 34 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 452 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 581 SdHoareTripleChecker+Invalid, 463 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 452 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-03-17 18:57:48,824 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 581 Invalid, 463 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 452 Invalid, 1 Unknown, 0 Unchecked, 6.3s Time] [2022-03-17 18:57:48,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 476 states. [2022-03-17 18:57:48,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 476 to 445. [2022-03-17 18:57:48,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 445 states, 440 states have (on average 1.5454545454545454) internal successors, (680), 440 states have internal predecessors, (680), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:57:48,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 445 states to 445 states and 684 transitions. [2022-03-17 18:57:48,830 INFO L78 Accepts]: Start accepts. Automaton has 445 states and 684 transitions. Word has length 130 [2022-03-17 18:57:48,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:57:48,831 INFO L478 AbstractCegarLoop]: Abstraction has 445 states and 684 transitions. [2022-03-17 18:57:48,831 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:57:48,831 INFO L276 IsEmpty]: Start isEmpty. Operand 445 states and 684 transitions. [2022-03-17 18:57:48,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-03-17 18:57:48,832 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:57:48,832 INFO L500 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:57:48,832 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-03-17 18:57:48,832 INFO L403 AbstractCegarLoop]: === Iteration 27 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:57:48,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:57:48,833 INFO L85 PathProgramCache]: Analyzing trace with hash 892461961, now seen corresponding path program 1 times [2022-03-17 18:57:48,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:57:48,833 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581686727] [2022-03-17 18:57:48,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:57:48,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:57:48,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:57:48,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:57:48,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:57:48,966 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 102 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-03-17 18:57:48,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:57:48,966 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581686727] [2022-03-17 18:57:48,966 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [581686727] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:57:48,966 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:57:48,966 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:57:48,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624882417] [2022-03-17 18:57:48,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:57:48,967 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:57:48,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:57:48,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:57:48,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:57:48,967 INFO L87 Difference]: Start difference. First operand 445 states and 684 transitions. Second operand has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:57:51,887 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:57:53,050 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:57:54,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:57:54,245 INFO L93 Difference]: Finished difference Result 485 states and 737 transitions. [2022-03-17 18:57:54,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:57:54,245 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 143 [2022-03-17 18:57:54,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:57:54,247 INFO L225 Difference]: With dead ends: 485 [2022-03-17 18:57:54,247 INFO L226 Difference]: Without dead ends: 485 [2022-03-17 18:57:54,247 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:57:54,248 INFO L912 BasicCegarLoop]: 189 mSDtfsCounter, 90 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 500 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 485 SdHoareTripleChecker+Invalid, 512 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 500 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-03-17 18:57:54,248 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [90 Valid, 485 Invalid, 512 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 500 Invalid, 1 Unknown, 0 Unchecked, 5.3s Time] [2022-03-17 18:57:54,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 485 states. [2022-03-17 18:57:54,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 485 to 445. [2022-03-17 18:57:54,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 445 states, 440 states have (on average 1.5431818181818182) internal successors, (679), 440 states have internal predecessors, (679), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:57:54,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 445 states to 445 states and 683 transitions. [2022-03-17 18:57:54,255 INFO L78 Accepts]: Start accepts. Automaton has 445 states and 683 transitions. Word has length 143 [2022-03-17 18:57:54,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:57:54,255 INFO L478 AbstractCegarLoop]: Abstraction has 445 states and 683 transitions. [2022-03-17 18:57:54,255 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:57:54,255 INFO L276 IsEmpty]: Start isEmpty. Operand 445 states and 683 transitions. [2022-03-17 18:57:54,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-03-17 18:57:54,256 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:57:54,257 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:57:54,257 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-03-17 18:57:54,257 INFO L403 AbstractCegarLoop]: === Iteration 28 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:57:54,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:57:54,257 INFO L85 PathProgramCache]: Analyzing trace with hash 556207741, now seen corresponding path program 1 times [2022-03-17 18:57:54,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:57:54,257 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1729335838] [2022-03-17 18:57:54,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:57:54,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:57:54,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:57:54,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:57:54,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:57:54,374 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 134 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-17 18:57:54,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:57:54,374 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1729335838] [2022-03-17 18:57:54,374 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1729335838] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:57:54,374 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:57:54,374 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:57:54,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422151012] [2022-03-17 18:57:54,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:57:54,375 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:57:54,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:57:54,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:57:54,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:57:54,375 INFO L87 Difference]: Start difference. First operand 445 states and 683 transitions. Second operand has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:57:55,671 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:57:57,641 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.97s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:57:59,669 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:58:01,693 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:58:02,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:58:02,097 INFO L93 Difference]: Finished difference Result 485 states and 736 transitions. [2022-03-17 18:58:02,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:58:02,097 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 143 [2022-03-17 18:58:02,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:58:02,098 INFO L225 Difference]: With dead ends: 485 [2022-03-17 18:58:02,098 INFO L226 Difference]: Without dead ends: 485 [2022-03-17 18:58:02,098 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:58:02,099 INFO L912 BasicCegarLoop]: 189 mSDtfsCounter, 70 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 498 mSolverCounterSat, 11 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 487 SdHoareTripleChecker+Invalid, 511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 498 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2022-03-17 18:58:02,099 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [70 Valid, 487 Invalid, 511 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 498 Invalid, 2 Unknown, 0 Unchecked, 7.7s Time] [2022-03-17 18:58:02,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 485 states. [2022-03-17 18:58:02,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 485 to 445. [2022-03-17 18:58:02,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 445 states, 440 states have (on average 1.540909090909091) internal successors, (678), 440 states have internal predecessors, (678), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:58:02,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 445 states to 445 states and 682 transitions. [2022-03-17 18:58:02,106 INFO L78 Accepts]: Start accepts. Automaton has 445 states and 682 transitions. Word has length 143 [2022-03-17 18:58:02,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:58:02,107 INFO L478 AbstractCegarLoop]: Abstraction has 445 states and 682 transitions. [2022-03-17 18:58:02,107 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:58:02,107 INFO L276 IsEmpty]: Start isEmpty. Operand 445 states and 682 transitions. [2022-03-17 18:58:02,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-03-17 18:58:02,108 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:58:02,108 INFO L500 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:58:02,108 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-03-17 18:58:02,108 INFO L403 AbstractCegarLoop]: === Iteration 29 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:58:02,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:58:02,109 INFO L85 PathProgramCache]: Analyzing trace with hash 1568154570, now seen corresponding path program 1 times [2022-03-17 18:58:02,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:58:02,109 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694373840] [2022-03-17 18:58:02,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:58:02,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:58:02,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:58:02,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:58:02,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:58:02,243 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 102 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-03-17 18:58:02,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:58:02,243 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694373840] [2022-03-17 18:58:02,243 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1694373840] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:58:02,243 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:58:02,243 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:58:02,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635352057] [2022-03-17 18:58:02,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:58:02,245 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:58:02,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:58:02,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:58:02,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:58:02,246 INFO L87 Difference]: Start difference. First operand 445 states and 682 transitions. Second operand has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:58:05,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:58:05,674 INFO L93 Difference]: Finished difference Result 466 states and 709 transitions. [2022-03-17 18:58:05,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:58:05,675 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 143 [2022-03-17 18:58:05,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:58:05,676 INFO L225 Difference]: With dead ends: 466 [2022-03-17 18:58:05,676 INFO L226 Difference]: Without dead ends: 466 [2022-03-17 18:58:05,676 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:58:05,677 INFO L912 BasicCegarLoop]: 237 mSDtfsCounter, 46 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 447 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 581 SdHoareTripleChecker+Invalid, 456 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 447 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-03-17 18:58:05,677 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [46 Valid, 581 Invalid, 456 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 447 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-03-17 18:58:05,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 466 states. [2022-03-17 18:58:05,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 466 to 445. [2022-03-17 18:58:05,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 445 states, 440 states have (on average 1.5386363636363636) internal successors, (677), 440 states have internal predecessors, (677), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:58:05,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 445 states to 445 states and 681 transitions. [2022-03-17 18:58:05,684 INFO L78 Accepts]: Start accepts. Automaton has 445 states and 681 transitions. Word has length 143 [2022-03-17 18:58:05,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:58:05,684 INFO L478 AbstractCegarLoop]: Abstraction has 445 states and 681 transitions. [2022-03-17 18:58:05,684 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:58:05,684 INFO L276 IsEmpty]: Start isEmpty. Operand 445 states and 681 transitions. [2022-03-17 18:58:05,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-03-17 18:58:05,685 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:58:05,685 INFO L500 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:58:05,685 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-03-17 18:58:05,685 INFO L403 AbstractCegarLoop]: === Iteration 30 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:58:05,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:58:05,686 INFO L85 PathProgramCache]: Analyzing trace with hash 1299950139, now seen corresponding path program 1 times [2022-03-17 18:58:05,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:58:05,686 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670131019] [2022-03-17 18:58:05,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:58:05,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:58:05,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:58:05,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:58:05,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:58:05,824 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 112 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-03-17 18:58:05,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:58:05,824 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [670131019] [2022-03-17 18:58:05,824 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [670131019] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:58:05,824 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:58:05,824 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:58:05,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443397030] [2022-03-17 18:58:05,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:58:05,825 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:58:05,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:58:05,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:58:05,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:58:05,826 INFO L87 Difference]: Start difference. First operand 445 states and 681 transitions. Second operand has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:58:06,831 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:58:08,118 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:58:09,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:58:09,157 INFO L93 Difference]: Finished difference Result 475 states and 721 transitions. [2022-03-17 18:58:09,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:58:09,157 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 144 [2022-03-17 18:58:09,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:58:09,158 INFO L225 Difference]: With dead ends: 475 [2022-03-17 18:58:09,159 INFO L226 Difference]: Without dead ends: 475 [2022-03-17 18:58:09,159 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:58:09,159 INFO L912 BasicCegarLoop]: 185 mSDtfsCounter, 79 mSDsluCounter, 292 mSDsCounter, 0 mSdLazyCounter, 475 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 477 SdHoareTripleChecker+Invalid, 482 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 475 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-03-17 18:58:09,159 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [79 Valid, 477 Invalid, 482 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 475 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-03-17 18:58:09,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 475 states. [2022-03-17 18:58:09,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 475 to 445. [2022-03-17 18:58:09,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 445 states, 440 states have (on average 1.5363636363636364) internal successors, (676), 440 states have internal predecessors, (676), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:58:09,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 445 states to 445 states and 680 transitions. [2022-03-17 18:58:09,180 INFO L78 Accepts]: Start accepts. Automaton has 445 states and 680 transitions. Word has length 144 [2022-03-17 18:58:09,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:58:09,180 INFO L478 AbstractCegarLoop]: Abstraction has 445 states and 680 transitions. [2022-03-17 18:58:09,181 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:58:09,181 INFO L276 IsEmpty]: Start isEmpty. Operand 445 states and 680 transitions. [2022-03-17 18:58:09,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-03-17 18:58:09,182 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:58:09,182 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:58:09,182 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-03-17 18:58:09,182 INFO L403 AbstractCegarLoop]: === Iteration 31 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:58:09,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:58:09,183 INFO L85 PathProgramCache]: Analyzing trace with hash 2040430962, now seen corresponding path program 1 times [2022-03-17 18:58:09,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:58:09,183 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458750871] [2022-03-17 18:58:09,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:58:09,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:58:09,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:58:09,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:58:09,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:58:09,298 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 136 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-17 18:58:09,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:58:09,299 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458750871] [2022-03-17 18:58:09,299 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [458750871] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:58:09,299 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:58:09,299 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:58:09,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836503808] [2022-03-17 18:58:09,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:58:09,299 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:58:09,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:58:09,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:58:09,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:58:09,300 INFO L87 Difference]: Start difference. First operand 445 states and 680 transitions. Second operand has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:58:11,145 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:58:13,033 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:58:14,881 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:58:15,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:58:15,292 INFO L93 Difference]: Finished difference Result 528 states and 787 transitions. [2022-03-17 18:58:15,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:58:15,292 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 144 [2022-03-17 18:58:15,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:58:15,294 INFO L225 Difference]: With dead ends: 528 [2022-03-17 18:58:15,294 INFO L226 Difference]: Without dead ends: 528 [2022-03-17 18:58:15,294 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:58:15,294 INFO L912 BasicCegarLoop]: 120 mSDtfsCounter, 118 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 342 SdHoareTripleChecker+Invalid, 537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-03-17 18:58:15,294 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [118 Valid, 342 Invalid, 537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 477 Invalid, 0 Unknown, 0 Unchecked, 6.0s Time] [2022-03-17 18:58:15,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 528 states. [2022-03-17 18:58:15,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 528 to 445. [2022-03-17 18:58:15,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 445 states, 440 states have (on average 1.5227272727272727) internal successors, (670), 440 states have internal predecessors, (670), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:58:15,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 445 states to 445 states and 674 transitions. [2022-03-17 18:58:15,300 INFO L78 Accepts]: Start accepts. Automaton has 445 states and 674 transitions. Word has length 144 [2022-03-17 18:58:15,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:58:15,301 INFO L478 AbstractCegarLoop]: Abstraction has 445 states and 674 transitions. [2022-03-17 18:58:15,301 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:58:15,301 INFO L276 IsEmpty]: Start isEmpty. Operand 445 states and 674 transitions. [2022-03-17 18:58:15,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-03-17 18:58:15,302 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:58:15,302 INFO L500 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:58:15,302 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-03-17 18:58:15,302 INFO L403 AbstractCegarLoop]: === Iteration 32 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:58:15,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:58:15,303 INFO L85 PathProgramCache]: Analyzing trace with hash 771584538, now seen corresponding path program 1 times [2022-03-17 18:58:15,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:58:15,303 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694579235] [2022-03-17 18:58:15,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:58:15,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:58:15,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:58:15,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:58:15,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:58:15,416 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 112 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-03-17 18:58:15,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:58:15,416 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694579235] [2022-03-17 18:58:15,417 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1694579235] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:58:15,417 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:58:15,417 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:58:15,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315906156] [2022-03-17 18:58:15,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:58:15,417 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:58:15,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:58:15,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:58:15,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:58:15,418 INFO L87 Difference]: Start difference. First operand 445 states and 674 transitions. Second operand has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:58:18,107 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:58:20,132 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:58:20,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:58:20,476 INFO L93 Difference]: Finished difference Result 456 states and 688 transitions. [2022-03-17 18:58:20,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:58:20,477 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 144 [2022-03-17 18:58:20,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:58:20,478 INFO L225 Difference]: With dead ends: 456 [2022-03-17 18:58:20,478 INFO L226 Difference]: Without dead ends: 456 [2022-03-17 18:58:20,478 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:58:20,479 INFO L912 BasicCegarLoop]: 230 mSDtfsCounter, 36 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 416 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 567 SdHoareTripleChecker+Invalid, 422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 416 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-03-17 18:58:20,479 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 567 Invalid, 422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 416 Invalid, 1 Unknown, 0 Unchecked, 5.0s Time] [2022-03-17 18:58:20,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 456 states. [2022-03-17 18:58:20,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 456 to 445. [2022-03-17 18:58:20,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 445 states, 440 states have (on average 1.5204545454545455) internal successors, (669), 440 states have internal predecessors, (669), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:58:20,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 445 states to 445 states and 673 transitions. [2022-03-17 18:58:20,485 INFO L78 Accepts]: Start accepts. Automaton has 445 states and 673 transitions. Word has length 144 [2022-03-17 18:58:20,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:58:20,485 INFO L478 AbstractCegarLoop]: Abstraction has 445 states and 673 transitions. [2022-03-17 18:58:20,485 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:58:20,486 INFO L276 IsEmpty]: Start isEmpty. Operand 445 states and 673 transitions. [2022-03-17 18:58:20,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-03-17 18:58:20,487 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:58:20,487 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:58:20,487 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-03-17 18:58:20,487 INFO L403 AbstractCegarLoop]: === Iteration 33 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:58:20,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:58:20,487 INFO L85 PathProgramCache]: Analyzing trace with hash -715304230, now seen corresponding path program 1 times [2022-03-17 18:58:20,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:58:20,488 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547466720] [2022-03-17 18:58:20,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:58:20,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:58:20,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:58:20,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:58:20,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:58:20,599 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 130 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-17 18:58:20,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:58:20,599 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [547466720] [2022-03-17 18:58:20,599 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [547466720] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:58:20,600 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:58:20,600 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:58:20,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223650767] [2022-03-17 18:58:20,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:58:20,600 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:58:20,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:58:20,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:58:20,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:58:20,601 INFO L87 Difference]: Start difference. First operand 445 states and 673 transitions. Second operand has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:58:22,236 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:58:24,256 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:58:26,281 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:58:27,952 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:58:28,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:58:28,369 INFO L93 Difference]: Finished difference Result 568 states and 843 transitions. [2022-03-17 18:58:28,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:58:28,370 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 146 [2022-03-17 18:58:28,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:58:28,371 INFO L225 Difference]: With dead ends: 568 [2022-03-17 18:58:28,371 INFO L226 Difference]: Without dead ends: 568 [2022-03-17 18:58:28,371 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:58:28,371 INFO L912 BasicCegarLoop]: 120 mSDtfsCounter, 120 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 476 mSolverCounterSat, 58 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 342 SdHoareTripleChecker+Invalid, 536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 476 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2022-03-17 18:58:28,372 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [120 Valid, 342 Invalid, 536 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 476 Invalid, 2 Unknown, 0 Unchecked, 7.8s Time] [2022-03-17 18:58:28,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 568 states. [2022-03-17 18:58:28,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 568 to 473. [2022-03-17 18:58:28,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 473 states, 468 states have (on average 1.5128205128205128) internal successors, (708), 468 states have internal predecessors, (708), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:58:28,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 473 states to 473 states and 712 transitions. [2022-03-17 18:58:28,378 INFO L78 Accepts]: Start accepts. Automaton has 473 states and 712 transitions. Word has length 146 [2022-03-17 18:58:28,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:58:28,378 INFO L478 AbstractCegarLoop]: Abstraction has 473 states and 712 transitions. [2022-03-17 18:58:28,378 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:58:28,379 INFO L276 IsEmpty]: Start isEmpty. Operand 473 states and 712 transitions. [2022-03-17 18:58:28,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-03-17 18:58:28,380 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:58:28,380 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:58:28,380 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-03-17 18:58:28,380 INFO L403 AbstractCegarLoop]: === Iteration 34 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:58:28,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:58:28,380 INFO L85 PathProgramCache]: Analyzing trace with hash 220917447, now seen corresponding path program 1 times [2022-03-17 18:58:28,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:58:28,381 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115924329] [2022-03-17 18:58:28,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:58:28,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:58:28,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:58:28,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:58:28,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:58:28,504 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-17 18:58:28,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:58:28,505 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2115924329] [2022-03-17 18:58:28,505 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2115924329] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:58:28,505 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:58:28,505 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:58:28,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194781824] [2022-03-17 18:58:28,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:58:28,505 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:58:28,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:58:28,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:58:28,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:58:28,506 INFO L87 Difference]: Start difference. First operand 473 states and 712 transitions. Second operand has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:58:29,591 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:58:31,168 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:58:31,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:58:31,813 INFO L93 Difference]: Finished difference Result 493 states and 737 transitions. [2022-03-17 18:58:31,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:58:31,814 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 [2022-03-17 18:58:31,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:58:31,816 INFO L225 Difference]: With dead ends: 493 [2022-03-17 18:58:31,816 INFO L226 Difference]: Without dead ends: 493 [2022-03-17 18:58:31,816 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:58:31,816 INFO L912 BasicCegarLoop]: 195 mSDtfsCounter, 50 mSDsluCounter, 304 mSDsCounter, 0 mSdLazyCounter, 454 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 499 SdHoareTripleChecker+Invalid, 461 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 454 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-03-17 18:58:31,817 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [50 Valid, 499 Invalid, 461 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 454 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-03-17 18:58:31,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 493 states. [2022-03-17 18:58:31,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 493 to 473. [2022-03-17 18:58:31,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 473 states, 468 states have (on average 1.5106837606837606) internal successors, (707), 468 states have internal predecessors, (707), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:58:31,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 473 states to 473 states and 711 transitions. [2022-03-17 18:58:31,823 INFO L78 Accepts]: Start accepts. Automaton has 473 states and 711 transitions. Word has length 147 [2022-03-17 18:58:31,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:58:31,823 INFO L478 AbstractCegarLoop]: Abstraction has 473 states and 711 transitions. [2022-03-17 18:58:31,823 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:58:31,824 INFO L276 IsEmpty]: Start isEmpty. Operand 473 states and 711 transitions. [2022-03-17 18:58:31,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2022-03-17 18:58:31,824 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:58:31,825 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:58:31,825 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-03-17 18:58:31,825 INFO L403 AbstractCegarLoop]: === Iteration 35 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:58:31,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:58:31,825 INFO L85 PathProgramCache]: Analyzing trace with hash 868976307, now seen corresponding path program 1 times [2022-03-17 18:58:31,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:58:31,825 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540144522] [2022-03-17 18:58:31,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:58:31,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:58:31,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:58:31,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:58:31,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:58:31,934 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 122 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-03-17 18:58:31,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:58:31,934 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540144522] [2022-03-17 18:58:31,934 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1540144522] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:58:31,934 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:58:31,935 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:58:31,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938472216] [2022-03-17 18:58:31,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:58:31,935 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:58:31,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:58:31,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:58:31,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:58:31,936 INFO L87 Difference]: Start difference. First operand 473 states and 711 transitions. Second operand has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:58:34,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:58:34,849 INFO L93 Difference]: Finished difference Result 493 states and 736 transitions. [2022-03-17 18:58:34,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:58:34,849 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 152 [2022-03-17 18:58:34,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:58:34,851 INFO L225 Difference]: With dead ends: 493 [2022-03-17 18:58:34,851 INFO L226 Difference]: Without dead ends: 493 [2022-03-17 18:58:34,851 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:58:34,851 INFO L912 BasicCegarLoop]: 200 mSDtfsCounter, 54 mSDsluCounter, 309 mSDsCounter, 0 mSdLazyCounter, 460 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 509 SdHoareTripleChecker+Invalid, 467 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 460 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-03-17 18:58:34,851 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [54 Valid, 509 Invalid, 467 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 460 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-03-17 18:58:34,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 493 states. [2022-03-17 18:58:34,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 493 to 473. [2022-03-17 18:58:34,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 473 states, 468 states have (on average 1.5085470085470085) internal successors, (706), 468 states have internal predecessors, (706), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:58:34,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 473 states to 473 states and 710 transitions. [2022-03-17 18:58:34,857 INFO L78 Accepts]: Start accepts. Automaton has 473 states and 710 transitions. Word has length 152 [2022-03-17 18:58:34,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:58:34,858 INFO L478 AbstractCegarLoop]: Abstraction has 473 states and 710 transitions. [2022-03-17 18:58:34,858 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:58:34,858 INFO L276 IsEmpty]: Start isEmpty. Operand 473 states and 710 transitions. [2022-03-17 18:58:34,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2022-03-17 18:58:34,859 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:58:34,859 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:58:34,859 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-03-17 18:58:34,859 INFO L403 AbstractCegarLoop]: === Iteration 36 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:58:34,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:58:34,860 INFO L85 PathProgramCache]: Analyzing trace with hash 1563623314, now seen corresponding path program 1 times [2022-03-17 18:58:34,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:58:34,860 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [302233556] [2022-03-17 18:58:34,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:58:34,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:58:34,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:58:34,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:58:34,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:58:34,970 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 137 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-03-17 18:58:34,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:58:34,970 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [302233556] [2022-03-17 18:58:34,970 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [302233556] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:58:34,970 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:58:34,970 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 18:58:34,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889884513] [2022-03-17 18:58:34,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:58:34,971 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 18:58:34,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:58:34,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 18:58:34,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 18:58:34,971 INFO L87 Difference]: Start difference. First operand 473 states and 710 transitions. Second operand has 4 states, 4 states have (on average 30.0) internal successors, (120), 3 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) [2022-03-17 18:58:37,782 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:58:39,652 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:58:39,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:58:39,942 INFO L93 Difference]: Finished difference Result 913 states and 1375 transitions. [2022-03-17 18:58:39,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 18:58:39,942 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.0) internal successors, (120), 3 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 152 [2022-03-17 18:58:39,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:58:39,945 INFO L225 Difference]: With dead ends: 913 [2022-03-17 18:58:39,945 INFO L226 Difference]: Without dead ends: 913 [2022-03-17 18:58:39,945 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 18:58:39,945 INFO L912 BasicCegarLoop]: 243 mSDtfsCounter, 129 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 272 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 437 SdHoareTripleChecker+Invalid, 279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-03-17 18:58:39,946 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [129 Valid, 437 Invalid, 279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 272 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2022-03-17 18:58:39,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 913 states. [2022-03-17 18:58:39,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 913 to 911. [2022-03-17 18:58:39,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 911 states, 906 states have (on average 1.5121412803532008) internal successors, (1370), 906 states have internal predecessors, (1370), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:58:39,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 911 states to 911 states and 1374 transitions. [2022-03-17 18:58:39,957 INFO L78 Accepts]: Start accepts. Automaton has 911 states and 1374 transitions. Word has length 152 [2022-03-17 18:58:39,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:58:39,958 INFO L478 AbstractCegarLoop]: Abstraction has 911 states and 1374 transitions. [2022-03-17 18:58:39,958 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.0) internal successors, (120), 3 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) [2022-03-17 18:58:39,958 INFO L276 IsEmpty]: Start isEmpty. Operand 911 states and 1374 transitions. [2022-03-17 18:58:39,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2022-03-17 18:58:39,960 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:58:39,960 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:58:39,960 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-03-17 18:58:39,960 INFO L403 AbstractCegarLoop]: === Iteration 37 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:58:39,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:58:39,960 INFO L85 PathProgramCache]: Analyzing trace with hash -895501135, now seen corresponding path program 1 times [2022-03-17 18:58:39,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:58:39,961 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940113670] [2022-03-17 18:58:39,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:58:39,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:58:40,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:58:40,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:58:40,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:58:40,073 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-03-17 18:58:40,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:58:40,073 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1940113670] [2022-03-17 18:58:40,073 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1940113670] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:58:40,073 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:58:40,073 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 18:58:40,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385527850] [2022-03-17 18:58:40,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:58:40,074 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 18:58:40,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:58:40,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 18:58:40,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 18:58:40,075 INFO L87 Difference]: Start difference. First operand 911 states and 1374 transitions. Second operand has 4 states, 4 states have (on average 24.25) internal successors, (97), 3 states have internal predecessors, (97), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:58:41,789 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:58:43,749 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:58:44,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:58:44,354 INFO L93 Difference]: Finished difference Result 938 states and 1409 transitions. [2022-03-17 18:58:44,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 18:58:44,354 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.25) internal successors, (97), 3 states have internal predecessors, (97), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 152 [2022-03-17 18:58:44,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:58:44,356 INFO L225 Difference]: With dead ends: 938 [2022-03-17 18:58:44,356 INFO L226 Difference]: Without dead ends: 938 [2022-03-17 18:58:44,356 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 18:58:44,357 INFO L912 BasicCegarLoop]: 217 mSDtfsCounter, 15 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 411 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-03-17 18:58:44,357 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 411 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 238 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2022-03-17 18:58:44,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 938 states. [2022-03-17 18:58:44,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 938 to 938. [2022-03-17 18:58:44,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 938 states, 933 states have (on average 1.5058949624866023) internal successors, (1405), 933 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) [2022-03-17 18:58:44,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 938 states to 938 states and 1409 transitions. [2022-03-17 18:58:44,367 INFO L78 Accepts]: Start accepts. Automaton has 938 states and 1409 transitions. Word has length 152 [2022-03-17 18:58:44,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:58:44,367 INFO L478 AbstractCegarLoop]: Abstraction has 938 states and 1409 transitions. [2022-03-17 18:58:44,367 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.25) internal successors, (97), 3 states have internal predecessors, (97), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:58:44,367 INFO L276 IsEmpty]: Start isEmpty. Operand 938 states and 1409 transitions. [2022-03-17 18:58:44,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2022-03-17 18:58:44,369 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:58:44,369 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:58:44,369 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-03-17 18:58:44,369 INFO L403 AbstractCegarLoop]: === Iteration 38 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:58:44,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:58:44,370 INFO L85 PathProgramCache]: Analyzing trace with hash -1110330288, now seen corresponding path program 1 times [2022-03-17 18:58:44,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:58:44,370 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923016193] [2022-03-17 18:58:44,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:58:44,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:58:44,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:58:44,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:58:44,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:58:44,474 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2022-03-17 18:58:44,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:58:44,475 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [923016193] [2022-03-17 18:58:44,475 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [923016193] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:58:44,475 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:58:44,475 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 18:58:44,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841586494] [2022-03-17 18:58:44,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:58:44,476 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 18:58:44,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:58:44,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 18:58:44,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 18:58:44,476 INFO L87 Difference]: Start difference. First operand 938 states and 1409 transitions. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 3 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:58:45,885 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 [] [2022-03-17 18:58:47,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:58:47,880 INFO L93 Difference]: Finished difference Result 940 states and 1411 transitions. [2022-03-17 18:58:47,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 18:58:47,880 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 3 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 152 [2022-03-17 18:58:47,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:58:47,882 INFO L225 Difference]: With dead ends: 940 [2022-03-17 18:58:47,882 INFO L226 Difference]: Without dead ends: 940 [2022-03-17 18:58:47,883 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 18:58:47,883 INFO L912 BasicCegarLoop]: 205 mSDtfsCounter, 4 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 390 SdHoareTripleChecker+Invalid, 226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-03-17 18:58:47,883 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 390 Invalid, 226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-03-17 18:58:47,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 940 states. [2022-03-17 18:58:47,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 940 to 940. [2022-03-17 18:58:47,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 940 states, 935 states have (on average 1.504812834224599) internal successors, (1407), 935 states have internal predecessors, (1407), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:58:47,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 940 states to 940 states and 1411 transitions. [2022-03-17 18:58:47,893 INFO L78 Accepts]: Start accepts. Automaton has 940 states and 1411 transitions. Word has length 152 [2022-03-17 18:58:47,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:58:47,893 INFO L478 AbstractCegarLoop]: Abstraction has 940 states and 1411 transitions. [2022-03-17 18:58:47,893 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 3 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:58:47,893 INFO L276 IsEmpty]: Start isEmpty. Operand 940 states and 1411 transitions. [2022-03-17 18:58:47,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-03-17 18:58:47,895 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:58:47,895 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:58:47,895 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-03-17 18:58:47,895 INFO L403 AbstractCegarLoop]: === Iteration 39 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:58:47,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:58:47,895 INFO L85 PathProgramCache]: Analyzing trace with hash -1906476963, now seen corresponding path program 1 times [2022-03-17 18:58:47,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:58:47,896 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032497920] [2022-03-17 18:58:47,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:58:47,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:58:47,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:58:48,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:58:48,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:58:48,036 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 144 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-03-17 18:58:48,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:58:48,036 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032497920] [2022-03-17 18:58:48,036 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2032497920] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:58:48,036 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:58:48,036 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:58:48,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051870892] [2022-03-17 18:58:48,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:58:48,037 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:58:48,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:58:48,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:58:48,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:58:48,037 INFO L87 Difference]: Start difference. First operand 940 states and 1411 transitions. Second operand has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:58:50,542 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:58:51,582 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:58:52,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:58:52,953 INFO L93 Difference]: Finished difference Result 981 states and 1460 transitions. [2022-03-17 18:58:52,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:58:52,953 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 153 [2022-03-17 18:58:52,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:58:52,956 INFO L225 Difference]: With dead ends: 981 [2022-03-17 18:58:52,956 INFO L226 Difference]: Without dead ends: 981 [2022-03-17 18:58:52,957 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:58:52,957 INFO L912 BasicCegarLoop]: 199 mSDtfsCounter, 42 mSDsluCounter, 308 mSDsCounter, 0 mSdLazyCounter, 459 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 507 SdHoareTripleChecker+Invalid, 466 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 459 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-03-17 18:58:52,957 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [42 Valid, 507 Invalid, 466 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 459 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2022-03-17 18:58:52,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 981 states. [2022-03-17 18:58:52,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 981 to 940. [2022-03-17 18:58:52,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 940 states, 935 states have (on average 1.5026737967914439) internal successors, (1405), 935 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) [2022-03-17 18:58:52,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 940 states to 940 states and 1409 transitions. [2022-03-17 18:58:52,975 INFO L78 Accepts]: Start accepts. Automaton has 940 states and 1409 transitions. Word has length 153 [2022-03-17 18:58:52,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:58:52,975 INFO L478 AbstractCegarLoop]: Abstraction has 940 states and 1409 transitions. [2022-03-17 18:58:52,975 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:58:52,975 INFO L276 IsEmpty]: Start isEmpty. Operand 940 states and 1409 transitions. [2022-03-17 18:58:52,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-03-17 18:58:52,977 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:58:52,977 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:58:52,977 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-03-17 18:58:52,977 INFO L403 AbstractCegarLoop]: === Iteration 40 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:58:52,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:58:52,978 INFO L85 PathProgramCache]: Analyzing trace with hash 282794031, now seen corresponding path program 1 times [2022-03-17 18:58:52,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:58:52,978 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179202026] [2022-03-17 18:58:52,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:58:52,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:58:53,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:58:53,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:58:53,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:58:53,097 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 115 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2022-03-17 18:58:53,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:58:53,097 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179202026] [2022-03-17 18:58:53,097 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [179202026] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:58:53,097 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:58:53,097 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:58:53,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586712967] [2022-03-17 18:58:53,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:58:53,098 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:58:53,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:58:53,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:58:53,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:58:53,098 INFO L87 Difference]: Start difference. First operand 940 states and 1409 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:58:54,726 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 [] [2022-03-17 18:58:56,616 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:58:57,800 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:58:58,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:58:58,165 INFO L93 Difference]: Finished difference Result 1059 states and 1574 transitions. [2022-03-17 18:58:58,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:58:58,165 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 153 [2022-03-17 18:58:58,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:58:58,168 INFO L225 Difference]: With dead ends: 1059 [2022-03-17 18:58:58,168 INFO L226 Difference]: Without dead ends: 1059 [2022-03-17 18:58:58,168 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:58:58,168 INFO L912 BasicCegarLoop]: 223 mSDtfsCounter, 37 mSDsluCounter, 330 mSDsCounter, 0 mSdLazyCounter, 451 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 553 SdHoareTripleChecker+Invalid, 461 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 451 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-03-17 18:58:58,168 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 553 Invalid, 461 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 451 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2022-03-17 18:58:58,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1059 states. [2022-03-17 18:58:58,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1059 to 992. [2022-03-17 18:58:58,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 992 states, 987 states have (on average 1.5045592705167172) internal successors, (1485), 987 states have internal predecessors, (1485), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:58:58,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 992 states to 992 states and 1489 transitions. [2022-03-17 18:58:58,193 INFO L78 Accepts]: Start accepts. Automaton has 992 states and 1489 transitions. Word has length 153 [2022-03-17 18:58:58,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:58:58,193 INFO L478 AbstractCegarLoop]: Abstraction has 992 states and 1489 transitions. [2022-03-17 18:58:58,193 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:58:58,193 INFO L276 IsEmpty]: Start isEmpty. Operand 992 states and 1489 transitions. [2022-03-17 18:58:58,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-03-17 18:58:58,195 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:58:58,195 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:58:58,195 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-03-17 18:58:58,195 INFO L403 AbstractCegarLoop]: === Iteration 41 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:58:58,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:58:58,195 INFO L85 PathProgramCache]: Analyzing trace with hash -1671067034, now seen corresponding path program 1 times [2022-03-17 18:58:58,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:58:58,196 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251268873] [2022-03-17 18:58:58,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:58:58,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:58:58,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:58:58,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:58:58,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:58:58,316 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 146 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-03-17 18:58:58,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:58:58,316 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1251268873] [2022-03-17 18:58:58,317 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1251268873] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:58:58,317 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:58:58,317 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:58:58,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923433671] [2022-03-17 18:58:58,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:58:58,318 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:58:58,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:58:58,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:58:58,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:58:58,318 INFO L87 Difference]: Start difference. First operand 992 states and 1489 transitions. Second operand has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:59:01,304 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:59:03,048 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:59:03,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:59:03,425 INFO L93 Difference]: Finished difference Result 1029 states and 1534 transitions. [2022-03-17 18:59:03,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:59:03,426 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 154 [2022-03-17 18:59:03,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:59:03,428 INFO L225 Difference]: With dead ends: 1029 [2022-03-17 18:59:03,428 INFO L226 Difference]: Without dead ends: 1029 [2022-03-17 18:59:03,428 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:59:03,429 INFO L912 BasicCegarLoop]: 200 mSDtfsCounter, 39 mSDsluCounter, 309 mSDsCounter, 0 mSdLazyCounter, 456 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 509 SdHoareTripleChecker+Invalid, 464 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 456 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-03-17 18:59:03,429 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [39 Valid, 509 Invalid, 464 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 456 Invalid, 1 Unknown, 0 Unchecked, 5.1s Time] [2022-03-17 18:59:03,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1029 states. [2022-03-17 18:59:03,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1029 to 992. [2022-03-17 18:59:03,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 992 states, 987 states have (on average 1.502532928064843) internal successors, (1483), 987 states have internal predecessors, (1483), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:59:03,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 992 states to 992 states and 1487 transitions. [2022-03-17 18:59:03,439 INFO L78 Accepts]: Start accepts. Automaton has 992 states and 1487 transitions. Word has length 154 [2022-03-17 18:59:03,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:59:03,440 INFO L478 AbstractCegarLoop]: Abstraction has 992 states and 1487 transitions. [2022-03-17 18:59:03,440 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:59:03,440 INFO L276 IsEmpty]: Start isEmpty. Operand 992 states and 1487 transitions. [2022-03-17 18:59:03,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2022-03-17 18:59:03,441 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:59:03,441 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:59:03,442 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-03-17 18:59:03,442 INFO L403 AbstractCegarLoop]: === Iteration 42 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:59:03,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:59:03,442 INFO L85 PathProgramCache]: Analyzing trace with hash 1414324568, now seen corresponding path program 1 times [2022-03-17 18:59:03,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:59:03,442 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544736127] [2022-03-17 18:59:03,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:59:03,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:59:03,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:59:03,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:59:03,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:59:03,564 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 126 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-03-17 18:59:03,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:59:03,565 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544736127] [2022-03-17 18:59:03,565 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [544736127] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:59:03,565 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:59:03,565 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:59:03,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948498172] [2022-03-17 18:59:03,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:59:03,566 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:59:03,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:59:03,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:59:03,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:59:03,566 INFO L87 Difference]: Start difference. First operand 992 states and 1487 transitions. Second operand has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:59:05,937 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:59:08,537 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:59:08,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:59:08,965 INFO L93 Difference]: Finished difference Result 1155 states and 1691 transitions. [2022-03-17 18:59:08,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:59:08,966 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 159 [2022-03-17 18:59:08,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:59:08,968 INFO L225 Difference]: With dead ends: 1155 [2022-03-17 18:59:08,968 INFO L226 Difference]: Without dead ends: 1155 [2022-03-17 18:59:08,968 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:59:08,969 INFO L912 BasicCegarLoop]: 128 mSDtfsCounter, 122 mSDsluCounter, 230 mSDsCounter, 0 mSdLazyCounter, 485 mSolverCounterSat, 58 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 358 SdHoareTripleChecker+Invalid, 544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 485 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-03-17 18:59:08,969 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [122 Valid, 358 Invalid, 544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 485 Invalid, 1 Unknown, 0 Unchecked, 5.4s Time] [2022-03-17 18:59:08,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1155 states. [2022-03-17 18:59:08,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1155 to 992. [2022-03-17 18:59:08,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 992 states, 987 states have (on average 1.4883485309017224) internal successors, (1469), 987 states have internal predecessors, (1469), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:59:08,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 992 states to 992 states and 1473 transitions. [2022-03-17 18:59:08,978 INFO L78 Accepts]: Start accepts. Automaton has 992 states and 1473 transitions. Word has length 159 [2022-03-17 18:59:08,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:59:08,978 INFO L478 AbstractCegarLoop]: Abstraction has 992 states and 1473 transitions. [2022-03-17 18:59:08,978 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:59:08,978 INFO L276 IsEmpty]: Start isEmpty. Operand 992 states and 1473 transitions. [2022-03-17 18:59:08,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2022-03-17 18:59:08,980 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:59:08,980 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:59:08,980 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-03-17 18:59:08,980 INFO L403 AbstractCegarLoop]: === Iteration 43 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:59:08,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:59:08,981 INFO L85 PathProgramCache]: Analyzing trace with hash 293481995, now seen corresponding path program 1 times [2022-03-17 18:59:08,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:59:08,981 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427348372] [2022-03-17 18:59:08,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:59:08,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:59:09,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:59:09,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:59:09,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:59:09,095 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 128 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-03-17 18:59:09,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:59:09,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427348372] [2022-03-17 18:59:09,095 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1427348372] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:59:09,095 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:59:09,096 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:59:09,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312449817] [2022-03-17 18:59:09,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:59:09,096 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:59:09,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:59:09,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:59:09,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:59:09,097 INFO L87 Difference]: Start difference. First operand 992 states and 1473 transitions. Second operand has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:59:10,127 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:59:12,144 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:59:13,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:59:13,620 INFO L93 Difference]: Finished difference Result 1155 states and 1677 transitions. [2022-03-17 18:59:13,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:59:13,620 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 160 [2022-03-17 18:59:13,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:59:13,623 INFO L225 Difference]: With dead ends: 1155 [2022-03-17 18:59:13,623 INFO L226 Difference]: Without dead ends: 1155 [2022-03-17 18:59:13,623 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:59:13,624 INFO L912 BasicCegarLoop]: 112 mSDtfsCounter, 121 mSDsluCounter, 214 mSDsCounter, 0 mSdLazyCounter, 468 mSolverCounterSat, 62 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 326 SdHoareTripleChecker+Invalid, 531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 468 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-03-17 18:59:13,624 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [121 Valid, 326 Invalid, 531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 468 Invalid, 1 Unknown, 0 Unchecked, 4.5s Time] [2022-03-17 18:59:13,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1155 states. [2022-03-17 18:59:13,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1155 to 992. [2022-03-17 18:59:13,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 992 states, 987 states have (on average 1.4741641337386018) internal successors, (1455), 987 states have internal predecessors, (1455), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:59:13,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 992 states to 992 states and 1459 transitions. [2022-03-17 18:59:13,657 INFO L78 Accepts]: Start accepts. Automaton has 992 states and 1459 transitions. Word has length 160 [2022-03-17 18:59:13,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:59:13,657 INFO L478 AbstractCegarLoop]: Abstraction has 992 states and 1459 transitions. [2022-03-17 18:59:13,658 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:59:13,658 INFO L276 IsEmpty]: Start isEmpty. Operand 992 states and 1459 transitions. [2022-03-17 18:59:13,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2022-03-17 18:59:13,659 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:59:13,659 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:59:13,660 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-03-17 18:59:13,660 INFO L403 AbstractCegarLoop]: === Iteration 44 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:59:13,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:59:13,660 INFO L85 PathProgramCache]: Analyzing trace with hash -1842738854, now seen corresponding path program 1 times [2022-03-17 18:59:13,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:59:13,661 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962033440] [2022-03-17 18:59:13,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:59:13,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:59:13,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:59:13,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:59:13,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:59:13,776 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 140 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-03-17 18:59:13,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:59:13,776 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1962033440] [2022-03-17 18:59:13,776 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1962033440] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:59:13,776 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:59:13,776 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:59:13,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557236420] [2022-03-17 18:59:13,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:59:13,777 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:59:13,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:59:13,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:59:13,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:59:13,778 INFO L87 Difference]: Start difference. First operand 992 states and 1459 transitions. Second operand has 5 states, 5 states have (on average 23.0) internal successors, (115), 4 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) [2022-03-17 18:59:14,911 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:59:16,184 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:59:18,201 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:59:20,223 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:59:20,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:59:20,632 INFO L93 Difference]: Finished difference Result 1235 states and 1791 transitions. [2022-03-17 18:59:20,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:59:20,633 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.0) internal successors, (115), 4 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 162 [2022-03-17 18:59:20,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:59:20,635 INFO L225 Difference]: With dead ends: 1235 [2022-03-17 18:59:20,635 INFO L226 Difference]: Without dead ends: 1235 [2022-03-17 18:59:20,635 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:59:20,636 INFO L912 BasicCegarLoop]: 112 mSDtfsCounter, 114 mSDsluCounter, 214 mSDsCounter, 0 mSdLazyCounter, 468 mSolverCounterSat, 60 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 326 SdHoareTripleChecker+Invalid, 530 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 468 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2022-03-17 18:59:20,636 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [114 Valid, 326 Invalid, 530 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 468 Invalid, 2 Unknown, 0 Unchecked, 6.8s Time] [2022-03-17 18:59:20,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1235 states. [2022-03-17 18:59:20,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1235 to 1058. [2022-03-17 18:59:20,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1058 states, 1053 states have (on average 1.4710351377018043) internal successors, (1549), 1053 states have internal predecessors, (1549), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:59:20,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1058 states to 1058 states and 1553 transitions. [2022-03-17 18:59:20,648 INFO L78 Accepts]: Start accepts. Automaton has 1058 states and 1553 transitions. Word has length 162 [2022-03-17 18:59:20,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:59:20,648 INFO L478 AbstractCegarLoop]: Abstraction has 1058 states and 1553 transitions. [2022-03-17 18:59:20,648 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.0) internal successors, (115), 4 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) [2022-03-17 18:59:20,648 INFO L276 IsEmpty]: Start isEmpty. Operand 1058 states and 1553 transitions. [2022-03-17 18:59:20,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2022-03-17 18:59:20,650 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:59:20,650 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:59:20,650 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-03-17 18:59:20,650 INFO L403 AbstractCegarLoop]: === Iteration 45 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:59:20,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:59:20,651 INFO L85 PathProgramCache]: Analyzing trace with hash -1186117070, now seen corresponding path program 1 times [2022-03-17 18:59:20,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:59:20,651 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071570285] [2022-03-17 18:59:20,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:59:20,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:59:20,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:59:20,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:59:20,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:59:20,804 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 142 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-03-17 18:59:20,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:59:20,804 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2071570285] [2022-03-17 18:59:20,805 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2071570285] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:59:20,805 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:59:20,805 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:59:20,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506602939] [2022-03-17 18:59:20,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:59:20,805 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:59:20,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:59:20,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:59:20,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:59:20,806 INFO L87 Difference]: Start difference. First operand 1058 states and 1553 transitions. Second operand has 5 states, 5 states have (on average 23.2) internal successors, (116), 4 states have internal predecessors, (116), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:59:22,384 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:59:23,481 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:59:25,498 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:59:26,506 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:59:26,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:59:26,906 INFO L93 Difference]: Finished difference Result 1221 states and 1763 transitions. [2022-03-17 18:59:26,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:59:26,906 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 4 states have internal predecessors, (116), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 163 [2022-03-17 18:59:26,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:59:26,909 INFO L225 Difference]: With dead ends: 1221 [2022-03-17 18:59:26,909 INFO L226 Difference]: Without dead ends: 1221 [2022-03-17 18:59:26,909 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:59:26,909 INFO L912 BasicCegarLoop]: 116 mSDtfsCounter, 113 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 472 mSolverCounterSat, 62 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 334 SdHoareTripleChecker+Invalid, 535 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 472 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-03-17 18:59:26,909 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [113 Valid, 334 Invalid, 535 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 472 Invalid, 1 Unknown, 0 Unchecked, 6.1s Time] [2022-03-17 18:59:26,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1221 states. [2022-03-17 18:59:26,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1221 to 1058. [2022-03-17 18:59:26,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1058 states, 1053 states have (on average 1.46343779677113) internal successors, (1541), 1053 states have internal predecessors, (1541), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:59:26,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1058 states to 1058 states and 1545 transitions. [2022-03-17 18:59:26,919 INFO L78 Accepts]: Start accepts. Automaton has 1058 states and 1545 transitions. Word has length 163 [2022-03-17 18:59:26,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:59:26,919 INFO L478 AbstractCegarLoop]: Abstraction has 1058 states and 1545 transitions. [2022-03-17 18:59:26,919 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 4 states have internal predecessors, (116), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:59:26,920 INFO L276 IsEmpty]: Start isEmpty. Operand 1058 states and 1545 transitions. [2022-03-17 18:59:26,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-03-17 18:59:26,921 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:59:26,921 INFO L500 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:59:26,921 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-03-17 18:59:26,922 INFO L403 AbstractCegarLoop]: === Iteration 46 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:59:26,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:59:26,922 INFO L85 PathProgramCache]: Analyzing trace with hash -532071860, now seen corresponding path program 1 times [2022-03-17 18:59:26,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:59:26,922 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531690823] [2022-03-17 18:59:26,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:59:26,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:59:26,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:59:27,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:59:27,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:59:27,047 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 157 proven. 0 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2022-03-17 18:59:27,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:59:27,047 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531690823] [2022-03-17 18:59:27,047 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [531690823] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:59:27,048 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:59:27,048 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:59:27,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567463566] [2022-03-17 18:59:27,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:59:27,048 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:59:27,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:59:27,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:59:27,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:59:27,049 INFO L87 Difference]: Start difference. First operand 1058 states and 1545 transitions. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:59:30,874 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:59:32,905 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:59:33,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:59:33,335 INFO L93 Difference]: Finished difference Result 1201 states and 1721 transitions. [2022-03-17 18:59:33,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:59:33,336 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 165 [2022-03-17 18:59:33,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:59:33,339 INFO L225 Difference]: With dead ends: 1201 [2022-03-17 18:59:33,339 INFO L226 Difference]: Without dead ends: 1201 [2022-03-17 18:59:33,339 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:59:33,343 INFO L912 BasicCegarLoop]: 117 mSDtfsCounter, 135 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 469 mSolverCounterSat, 62 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 336 SdHoareTripleChecker+Invalid, 533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 469 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-03-17 18:59:33,343 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [135 Valid, 336 Invalid, 533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 469 Invalid, 2 Unknown, 0 Unchecked, 6.3s Time] [2022-03-17 18:59:33,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1201 states. [2022-03-17 18:59:33,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1201 to 1058. [2022-03-17 18:59:33,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1058 states, 1053 states have (on average 1.446343779677113) internal successors, (1523), 1053 states have internal predecessors, (1523), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:59:33,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1058 states to 1058 states and 1527 transitions. [2022-03-17 18:59:33,355 INFO L78 Accepts]: Start accepts. Automaton has 1058 states and 1527 transitions. Word has length 165 [2022-03-17 18:59:33,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:59:33,355 INFO L478 AbstractCegarLoop]: Abstraction has 1058 states and 1527 transitions. [2022-03-17 18:59:33,355 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:59:33,355 INFO L276 IsEmpty]: Start isEmpty. Operand 1058 states and 1527 transitions. [2022-03-17 18:59:33,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2022-03-17 18:59:33,357 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:59:33,357 INFO L500 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:59:33,357 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-03-17 18:59:33,357 INFO L403 AbstractCegarLoop]: === Iteration 47 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:59:33,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:59:33,358 INFO L85 PathProgramCache]: Analyzing trace with hash 89074648, now seen corresponding path program 1 times [2022-03-17 18:59:33,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:59:33,358 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [49213074] [2022-03-17 18:59:33,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:59:33,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:59:33,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:59:33,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:59:33,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:59:33,494 INFO L134 CoverageAnalysis]: Checked inductivity of 257 backedges. 157 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2022-03-17 18:59:33,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:59:33,494 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [49213074] [2022-03-17 18:59:33,494 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [49213074] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:59:33,494 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:59:33,494 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-17 18:59:33,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482229748] [2022-03-17 18:59:33,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:59:33,495 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-17 18:59:33,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:59:33,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-17 18:59:33,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:59:33,495 INFO L87 Difference]: Start difference. First operand 1058 states and 1527 transitions. Second operand has 6 states, 6 states have (on average 16.0) internal successors, (96), 5 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:59:34,523 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:59:36,274 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:59:38,549 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:59:40,570 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:59:40,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:59:40,998 INFO L93 Difference]: Finished difference Result 1058 states and 1525 transitions. [2022-03-17 18:59:40,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-17 18:59:40,999 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.0) internal successors, (96), 5 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 166 [2022-03-17 18:59:40,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:59:41,001 INFO L225 Difference]: With dead ends: 1058 [2022-03-17 18:59:41,001 INFO L226 Difference]: Without dead ends: 1058 [2022-03-17 18:59:41,002 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-03-17 18:59:41,002 INFO L912 BasicCegarLoop]: 111 mSDtfsCounter, 143 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 520 mSolverCounterSat, 42 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 354 SdHoareTripleChecker+Invalid, 563 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 520 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2022-03-17 18:59:41,002 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [143 Valid, 354 Invalid, 563 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 520 Invalid, 1 Unknown, 0 Unchecked, 7.5s Time] [2022-03-17 18:59:41,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1058 states. [2022-03-17 18:59:41,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1058 to 1058. [2022-03-17 18:59:41,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1058 states, 1053 states have (on average 1.4444444444444444) internal successors, (1521), 1053 states have internal predecessors, (1521), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:59:41,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1058 states to 1058 states and 1525 transitions. [2022-03-17 18:59:41,013 INFO L78 Accepts]: Start accepts. Automaton has 1058 states and 1525 transitions. Word has length 166 [2022-03-17 18:59:41,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:59:41,013 INFO L478 AbstractCegarLoop]: Abstraction has 1058 states and 1525 transitions. [2022-03-17 18:59:41,013 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.0) internal successors, (96), 5 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:59:41,013 INFO L276 IsEmpty]: Start isEmpty. Operand 1058 states and 1525 transitions. [2022-03-17 18:59:41,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2022-03-17 18:59:41,015 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:59:41,015 INFO L500 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:59:41,015 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-03-17 18:59:41,015 INFO L403 AbstractCegarLoop]: === Iteration 48 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:59:41,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:59:41,015 INFO L85 PathProgramCache]: Analyzing trace with hash -522240028, now seen corresponding path program 1 times [2022-03-17 18:59:41,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:59:41,016 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019560180] [2022-03-17 18:59:41,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:59:41,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:59:41,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:59:41,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:59:41,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:59:41,143 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 131 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2022-03-17 18:59:41,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:59:41,144 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019560180] [2022-03-17 18:59:41,144 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1019560180] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:59:41,144 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:59:41,144 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:59:41,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271990242] [2022-03-17 18:59:41,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:59:41,144 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:59:41,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:59:41,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:59:41,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:59:41,145 INFO L87 Difference]: Start difference. First operand 1058 states and 1525 transitions. Second operand has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:59:43,941 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:59:45,972 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:59:46,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:59:46,689 INFO L93 Difference]: Finished difference Result 1181 states and 1675 transitions. [2022-03-17 18:59:46,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:59:46,689 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 169 [2022-03-17 18:59:46,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:59:46,692 INFO L225 Difference]: With dead ends: 1181 [2022-03-17 18:59:46,692 INFO L226 Difference]: Without dead ends: 1181 [2022-03-17 18:59:46,692 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:59:46,692 INFO L912 BasicCegarLoop]: 123 mSDtfsCounter, 125 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 454 mSolverCounterSat, 55 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 348 SdHoareTripleChecker+Invalid, 511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 454 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-03-17 18:59:46,693 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [125 Valid, 348 Invalid, 511 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 454 Invalid, 2 Unknown, 0 Unchecked, 5.5s Time] [2022-03-17 18:59:46,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1181 states. [2022-03-17 18:59:46,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1181 to 1058. [2022-03-17 18:59:46,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1058 states, 1053 states have (on average 1.4273504273504274) internal successors, (1503), 1053 states have internal predecessors, (1503), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:59:46,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1058 states to 1058 states and 1507 transitions. [2022-03-17 18:59:46,703 INFO L78 Accepts]: Start accepts. Automaton has 1058 states and 1507 transitions. Word has length 169 [2022-03-17 18:59:46,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:59:46,703 INFO L478 AbstractCegarLoop]: Abstraction has 1058 states and 1507 transitions. [2022-03-17 18:59:46,704 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:59:46,704 INFO L276 IsEmpty]: Start isEmpty. Operand 1058 states and 1507 transitions. [2022-03-17 18:59:46,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2022-03-17 18:59:46,705 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:59:46,706 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:59:46,706 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-03-17 18:59:46,706 INFO L403 AbstractCegarLoop]: === Iteration 49 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:59:46,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:59:46,706 INFO L85 PathProgramCache]: Analyzing trace with hash -577869470, now seen corresponding path program 1 times [2022-03-17 18:59:46,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:59:46,706 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418430358] [2022-03-17 18:59:46,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:59:46,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:59:46,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:59:46,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:59:46,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:59:46,821 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2022-03-17 18:59:46,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:59:46,822 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418430358] [2022-03-17 18:59:46,822 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [418430358] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:59:46,822 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:59:46,822 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 18:59:46,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33715715] [2022-03-17 18:59:46,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:59:46,822 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 18:59:46,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:59:46,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 18:59:46,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 18:59:46,823 INFO L87 Difference]: Start difference. First operand 1058 states and 1507 transitions. Second operand has 4 states, 4 states have (on average 26.5) internal successors, (106), 3 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:59:49,098 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:59:50,709 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:59:51,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:59:51,109 INFO L93 Difference]: Finished difference Result 1558 states and 2222 transitions. [2022-03-17 18:59:51,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 18:59:51,110 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.5) internal successors, (106), 3 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 171 [2022-03-17 18:59:51,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:59:51,112 INFO L225 Difference]: With dead ends: 1558 [2022-03-17 18:59:51,112 INFO L226 Difference]: Without dead ends: 1558 [2022-03-17 18:59:51,112 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 18:59:51,112 INFO L912 BasicCegarLoop]: 370 mSDtfsCounter, 139 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 401 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 564 SdHoareTripleChecker+Invalid, 409 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-03-17 18:59:51,113 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [139 Valid, 564 Invalid, 409 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 401 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2022-03-17 18:59:51,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1558 states. [2022-03-17 18:59:51,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1558 to 1558. [2022-03-17 18:59:51,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1558 states, 1553 states have (on average 1.4282034771410175) internal successors, (2218), 1553 states have internal predecessors, (2218), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:59:51,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1558 states to 1558 states and 2222 transitions. [2022-03-17 18:59:51,128 INFO L78 Accepts]: Start accepts. Automaton has 1558 states and 2222 transitions. Word has length 171 [2022-03-17 18:59:51,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:59:51,128 INFO L478 AbstractCegarLoop]: Abstraction has 1558 states and 2222 transitions. [2022-03-17 18:59:51,128 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.5) internal successors, (106), 3 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:59:51,128 INFO L276 IsEmpty]: Start isEmpty. Operand 1558 states and 2222 transitions. [2022-03-17 18:59:51,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2022-03-17 18:59:51,131 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:59:51,131 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:59:51,131 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-03-17 18:59:51,131 INFO L403 AbstractCegarLoop]: === Iteration 50 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:59:51,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:59:51,131 INFO L85 PathProgramCache]: Analyzing trace with hash 256687454, now seen corresponding path program 1 times [2022-03-17 18:59:51,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:59:51,132 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250409851] [2022-03-17 18:59:51,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:59:51,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:59:51,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:59:51,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:59:51,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:59:51,239 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 160 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-03-17 18:59:51,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:59:51,240 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250409851] [2022-03-17 18:59:51,240 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1250409851] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:59:51,240 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:59:51,240 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 18:59:51,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226772974] [2022-03-17 18:59:51,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:59:51,240 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 18:59:51,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:59:51,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 18:59:51,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 18:59:51,241 INFO L87 Difference]: Start difference. First operand 1558 states and 2222 transitions. Second operand has 4 states, 4 states have (on average 35.5) internal successors, (142), 3 states have internal predecessors, (142), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:59:53,905 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:59:54,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:59:54,218 INFO L93 Difference]: Finished difference Result 2023 states and 2885 transitions. [2022-03-17 18:59:54,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 18:59:54,218 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.5) internal successors, (142), 3 states have internal predecessors, (142), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 172 [2022-03-17 18:59:54,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:59:54,222 INFO L225 Difference]: With dead ends: 2023 [2022-03-17 18:59:54,222 INFO L226 Difference]: Without dead ends: 2023 [2022-03-17 18:59:54,222 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 18:59:54,223 INFO L912 BasicCegarLoop]: 296 mSDtfsCounter, 132 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 325 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 490 SdHoareTripleChecker+Invalid, 332 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 325 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-03-17 18:59:54,223 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [132 Valid, 490 Invalid, 332 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 325 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-03-17 18:59:54,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2023 states. [2022-03-17 18:59:54,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2023 to 2019. [2022-03-17 18:59:54,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2019 states, 2014 states have (on average 1.428997020854022) internal successors, (2878), 2014 states have internal predecessors, (2878), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:59:54,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2019 states to 2019 states and 2882 transitions. [2022-03-17 18:59:54,254 INFO L78 Accepts]: Start accepts. Automaton has 2019 states and 2882 transitions. Word has length 172 [2022-03-17 18:59:54,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:59:54,254 INFO L478 AbstractCegarLoop]: Abstraction has 2019 states and 2882 transitions. [2022-03-17 18:59:54,254 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.5) internal successors, (142), 3 states have internal predecessors, (142), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:59:54,254 INFO L276 IsEmpty]: Start isEmpty. Operand 2019 states and 2882 transitions. [2022-03-17 18:59:54,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2022-03-17 18:59:54,256 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:59:54,256 INFO L500 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:59:54,257 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-03-17 18:59:54,257 INFO L403 AbstractCegarLoop]: === Iteration 51 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:59:54,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:59:54,257 INFO L85 PathProgramCache]: Analyzing trace with hash 1935430171, now seen corresponding path program 1 times [2022-03-17 18:59:54,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:59:54,257 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074089567] [2022-03-17 18:59:54,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:59:54,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:59:54,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:59:54,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:59:54,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:59:54,385 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 159 proven. 0 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2022-03-17 18:59:54,385 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:59:54,385 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1074089567] [2022-03-17 18:59:54,386 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1074089567] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:59:54,386 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:59:54,386 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:59:54,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16988025] [2022-03-17 18:59:54,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:59:54,386 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:59:54,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:59:54,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:59:54,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:59:54,387 INFO L87 Difference]: Start difference. First operand 2019 states and 2882 transitions. Second operand has 5 states, 5 states have (on average 24.6) internal successors, (123), 4 states have internal predecessors, (123), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:59:56,658 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:59:57,932 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:59:59,043 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:59:59,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:59:59,403 INFO L93 Difference]: Finished difference Result 2096 states and 2985 transitions. [2022-03-17 18:59:59,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:59:59,403 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.6) internal successors, (123), 4 states have internal predecessors, (123), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 181 [2022-03-17 18:59:59,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:59:59,406 INFO L225 Difference]: With dead ends: 2096 [2022-03-17 18:59:59,406 INFO L226 Difference]: Without dead ends: 2096 [2022-03-17 18:59:59,406 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:59:59,407 INFO L912 BasicCegarLoop]: 234 mSDtfsCounter, 36 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 576 SdHoareTripleChecker+Invalid, 469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-03-17 18:59:59,407 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 576 Invalid, 469 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 464 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2022-03-17 18:59:59,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2096 states. [2022-03-17 18:59:59,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2096 to 2019. [2022-03-17 18:59:59,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2019 states, 2014 states have (on average 1.4270109235352533) internal successors, (2874), 2014 states have internal predecessors, (2874), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:59:59,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2019 states to 2019 states and 2878 transitions. [2022-03-17 18:59:59,425 INFO L78 Accepts]: Start accepts. Automaton has 2019 states and 2878 transitions. Word has length 181 [2022-03-17 18:59:59,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:59:59,426 INFO L478 AbstractCegarLoop]: Abstraction has 2019 states and 2878 transitions. [2022-03-17 18:59:59,426 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.6) internal successors, (123), 4 states have internal predecessors, (123), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:59:59,426 INFO L276 IsEmpty]: Start isEmpty. Operand 2019 states and 2878 transitions. [2022-03-17 18:59:59,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2022-03-17 18:59:59,428 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:59:59,428 INFO L500 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-03-17 18:59:59,428 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-03-17 18:59:59,428 INFO L403 AbstractCegarLoop]: === Iteration 52 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:59:59,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:59:59,429 INFO L85 PathProgramCache]: Analyzing trace with hash 1940483440, now seen corresponding path program 1 times [2022-03-17 18:59:59,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:59:59,429 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261295695] [2022-03-17 18:59:59,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:59:59,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:59:59,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:59:59,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:59:59,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:59:59,579 INFO L134 CoverageAnalysis]: Checked inductivity of 286 backedges. 220 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-03-17 18:59:59,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:59:59,579 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [261295695] [2022-03-17 18:59:59,579 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [261295695] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:59:59,579 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:59:59,579 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:59:59,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996087893] [2022-03-17 18:59:59,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:59:59,580 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:59:59,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:59:59,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:59:59,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:59:59,581 INFO L87 Difference]: Start difference. First operand 2019 states and 2878 transitions. Second operand has 5 states, 5 states have (on average 25.6) internal successors, (128), 4 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:00:02,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:00:02,542 INFO L93 Difference]: Finished difference Result 2230 states and 3169 transitions. [2022-03-17 19:00:02,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:00:02,543 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.6) internal successors, (128), 4 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 184 [2022-03-17 19:00:02,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:00:02,546 INFO L225 Difference]: With dead ends: 2230 [2022-03-17 19:00:02,546 INFO L226 Difference]: Without dead ends: 2230 [2022-03-17 19:00:02,546 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 19:00:02,546 INFO L912 BasicCegarLoop]: 221 mSDtfsCounter, 62 mSDsluCounter, 327 mSDsCounter, 0 mSdLazyCounter, 503 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 548 SdHoareTripleChecker+Invalid, 508 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 503 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-03-17 19:00:02,546 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [62 Valid, 548 Invalid, 508 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 503 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-03-17 19:00:02,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2230 states. [2022-03-17 19:00:02,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2230 to 2109. [2022-03-17 19:00:02,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2109 states, 2104 states have (on average 1.4272813688212929) internal successors, (3003), 2104 states have internal predecessors, (3003), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:00:02,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2109 states to 2109 states and 3007 transitions. [2022-03-17 19:00:02,566 INFO L78 Accepts]: Start accepts. Automaton has 2109 states and 3007 transitions. Word has length 184 [2022-03-17 19:00:02,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:00:02,566 INFO L478 AbstractCegarLoop]: Abstraction has 2109 states and 3007 transitions. [2022-03-17 19:00:02,566 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.6) internal successors, (128), 4 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:00:02,566 INFO L276 IsEmpty]: Start isEmpty. Operand 2109 states and 3007 transitions. [2022-03-17 19:00:02,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2022-03-17 19:00:02,568 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:00:02,569 INFO L500 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 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] [2022-03-17 19:00:02,569 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-03-17 19:00:02,569 INFO L403 AbstractCegarLoop]: === Iteration 53 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:00:02,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:00:02,569 INFO L85 PathProgramCache]: Analyzing trace with hash -2001822662, now seen corresponding path program 1 times [2022-03-17 19:00:02,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:00:02,569 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470930611] [2022-03-17 19:00:02,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:00:02,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:00:02,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:00:02,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:00:02,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:00:02,710 INFO L134 CoverageAnalysis]: Checked inductivity of 283 backedges. 217 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-03-17 19:00:02,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:00:02,711 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1470930611] [2022-03-17 19:00:02,711 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1470930611] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:00:02,711 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:00:02,711 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:00:02,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730851173] [2022-03-17 19:00:02,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:00:02,711 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:00:02,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:00:02,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:00:02,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:00:02,712 INFO L87 Difference]: Start difference. First operand 2109 states and 3007 transitions. Second operand has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:00:04,711 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:00:06,728 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:00:08,388 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:00:08,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:00:08,757 INFO L93 Difference]: Finished difference Result 2206 states and 3127 transitions. [2022-03-17 19:00:08,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:00:08,757 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 188 [2022-03-17 19:00:08,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:00:08,760 INFO L225 Difference]: With dead ends: 2206 [2022-03-17 19:00:08,760 INFO L226 Difference]: Without dead ends: 2206 [2022-03-17 19:00:08,760 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 19:00:08,760 INFO L912 BasicCegarLoop]: 230 mSDtfsCounter, 53 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 484 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 566 SdHoareTripleChecker+Invalid, 490 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 484 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-03-17 19:00:08,760 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [53 Valid, 566 Invalid, 490 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 484 Invalid, 1 Unknown, 0 Unchecked, 6.0s Time] [2022-03-17 19:00:08,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2206 states. [2022-03-17 19:00:08,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2206 to 2109. [2022-03-17 19:00:08,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2109 states, 2104 states have (on average 1.4258555133079849) internal successors, (3000), 2104 states have internal predecessors, (3000), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:00:08,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2109 states to 2109 states and 3004 transitions. [2022-03-17 19:00:08,774 INFO L78 Accepts]: Start accepts. Automaton has 2109 states and 3004 transitions. Word has length 188 [2022-03-17 19:00:08,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:00:08,774 INFO L478 AbstractCegarLoop]: Abstraction has 2109 states and 3004 transitions. [2022-03-17 19:00:08,774 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:00:08,775 INFO L276 IsEmpty]: Start isEmpty. Operand 2109 states and 3004 transitions. [2022-03-17 19:00:08,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2022-03-17 19:00:08,777 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:00:08,777 INFO L500 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:00:08,777 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-03-17 19:00:08,777 INFO L403 AbstractCegarLoop]: === Iteration 54 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:00:08,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:00:08,778 INFO L85 PathProgramCache]: Analyzing trace with hash 1964508048, now seen corresponding path program 1 times [2022-03-17 19:00:08,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:00:08,778 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23023251] [2022-03-17 19:00:08,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:00:08,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:00:08,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:00:08,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:00:08,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:00:08,910 INFO L134 CoverageAnalysis]: Checked inductivity of 311 backedges. 240 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2022-03-17 19:00:08,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:00:08,910 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [23023251] [2022-03-17 19:00:08,910 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [23023251] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:00:08,910 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:00:08,910 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:00:08,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861988248] [2022-03-17 19:00:08,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:00:08,911 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:00:08,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:00:08,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:00:08,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:00:08,911 INFO L87 Difference]: Start difference. First operand 2109 states and 3004 transitions. Second operand has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:00:10,479 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:00:12,499 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:00:13,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:00:13,585 INFO L93 Difference]: Finished difference Result 2506 states and 3538 transitions. [2022-03-17 19:00:13,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:00:13,586 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 194 [2022-03-17 19:00:13,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:00:13,589 INFO L225 Difference]: With dead ends: 2506 [2022-03-17 19:00:13,589 INFO L226 Difference]: Without dead ends: 2506 [2022-03-17 19:00:13,589 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 19:00:13,590 INFO L912 BasicCegarLoop]: 123 mSDtfsCounter, 101 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 456 mSolverCounterSat, 54 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 348 SdHoareTripleChecker+Invalid, 511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 456 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-03-17 19:00:13,590 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [101 Valid, 348 Invalid, 511 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 456 Invalid, 1 Unknown, 0 Unchecked, 4.7s Time] [2022-03-17 19:00:13,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2506 states. [2022-03-17 19:00:13,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2506 to 2249. [2022-03-17 19:00:13,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2249 states, 2244 states have (on average 1.4206773618538324) internal successors, (3188), 2244 states have internal predecessors, (3188), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:00:13,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2249 states to 2249 states and 3192 transitions. [2022-03-17 19:00:13,606 INFO L78 Accepts]: Start accepts. Automaton has 2249 states and 3192 transitions. Word has length 194 [2022-03-17 19:00:13,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:00:13,606 INFO L478 AbstractCegarLoop]: Abstraction has 2249 states and 3192 transitions. [2022-03-17 19:00:13,606 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:00:13,606 INFO L276 IsEmpty]: Start isEmpty. Operand 2249 states and 3192 transitions. [2022-03-17 19:00:13,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-03-17 19:00:13,609 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:00:13,609 INFO L500 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:00:13,609 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-03-17 19:00:13,609 INFO L403 AbstractCegarLoop]: === Iteration 55 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:00:13,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:00:13,610 INFO L85 PathProgramCache]: Analyzing trace with hash -1929615981, now seen corresponding path program 1 times [2022-03-17 19:00:13,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:00:13,610 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89100886] [2022-03-17 19:00:13,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:00:13,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:00:13,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:00:13,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:00:13,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:00:13,740 INFO L134 CoverageAnalysis]: Checked inductivity of 314 backedges. 243 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2022-03-17 19:00:13,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:00:13,740 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [89100886] [2022-03-17 19:00:13,740 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [89100886] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:00:13,740 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:00:13,740 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:00:13,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653737170] [2022-03-17 19:00:13,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:00:13,741 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:00:13,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:00:13,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:00:13,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:00:13,741 INFO L87 Difference]: Start difference. First operand 2249 states and 3192 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) [2022-03-17 19:00:16,386 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:00:17,955 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:00:19,982 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:00:20,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:00:20,350 INFO L93 Difference]: Finished difference Result 2340 states and 3303 transitions. [2022-03-17 19:00:20,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:00:20,350 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 195 [2022-03-17 19:00:20,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:00:20,353 INFO L225 Difference]: With dead ends: 2340 [2022-03-17 19:00:20,353 INFO L226 Difference]: Without dead ends: 2340 [2022-03-17 19:00:20,354 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 19:00:20,354 INFO L912 BasicCegarLoop]: 231 mSDtfsCounter, 43 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 481 mSolverCounterSat, 5 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 568 SdHoareTripleChecker+Invalid, 488 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 481 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2022-03-17 19:00:20,354 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [43 Valid, 568 Invalid, 488 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 481 Invalid, 2 Unknown, 0 Unchecked, 6.6s Time] [2022-03-17 19:00:20,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2340 states. [2022-03-17 19:00:20,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2340 to 2267. [2022-03-17 19:00:20,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2267 states, 2262 states have (on average 1.4173297966401415) internal successors, (3206), 2262 states have internal predecessors, (3206), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:00:20,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2267 states to 2267 states and 3210 transitions. [2022-03-17 19:00:20,389 INFO L78 Accepts]: Start accepts. Automaton has 2267 states and 3210 transitions. Word has length 195 [2022-03-17 19:00:20,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:00:20,389 INFO L478 AbstractCegarLoop]: Abstraction has 2267 states and 3210 transitions. [2022-03-17 19:00:20,389 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) [2022-03-17 19:00:20,390 INFO L276 IsEmpty]: Start isEmpty. Operand 2267 states and 3210 transitions. [2022-03-17 19:00:20,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2022-03-17 19:00:20,392 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:00:20,392 INFO L500 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] [2022-03-17 19:00:20,392 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-03-17 19:00:20,392 INFO L403 AbstractCegarLoop]: === Iteration 56 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:00:20,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:00:20,393 INFO L85 PathProgramCache]: Analyzing trace with hash 2123698635, now seen corresponding path program 1 times [2022-03-17 19:00:20,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:00:20,393 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004157476] [2022-03-17 19:00:20,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:00:20,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:00:20,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:00:20,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:00:20,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:00:20,897 INFO L134 CoverageAnalysis]: Checked inductivity of 363 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2022-03-17 19:00:20,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:00:20,897 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2004157476] [2022-03-17 19:00:20,897 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2004157476] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:00:20,897 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:00:20,897 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-17 19:00:20,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103062370] [2022-03-17 19:00:20,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:00:20,898 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-17 19:00:20,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:00:20,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-17 19:00:20,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-03-17 19:00:20,899 INFO L87 Difference]: Start difference. First operand 2267 states and 3210 transitions. Second operand has 7 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:00:21,983 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:00:23,451 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:00:25,470 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:00:26,794 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:00:28,813 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:00:30,838 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:00:31,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:00:31,268 INFO L93 Difference]: Finished difference Result 2275 states and 3220 transitions. [2022-03-17 19:00:31,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-17 19:00:31,268 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 196 [2022-03-17 19:00:31,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:00:31,271 INFO L225 Difference]: With dead ends: 2275 [2022-03-17 19:00:31,271 INFO L226 Difference]: Without dead ends: 2267 [2022-03-17 19:00:31,271 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-03-17 19:00:31,271 INFO L912 BasicCegarLoop]: 203 mSDtfsCounter, 7 mSDsluCounter, 609 mSDsCounter, 0 mSdLazyCounter, 435 mSolverCounterSat, 4 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 812 SdHoareTripleChecker+Invalid, 442 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 435 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.3s IncrementalHoareTripleChecker+Time [2022-03-17 19:00:31,272 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 812 Invalid, 442 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 435 Invalid, 3 Unknown, 0 Unchecked, 10.3s Time] [2022-03-17 19:00:31,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2267 states. [2022-03-17 19:00:31,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2267 to 2267. [2022-03-17 19:00:31,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2267 states, 2262 states have (on average 1.4168877099911583) internal successors, (3205), 2262 states have internal predecessors, (3205), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:00:31,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2267 states to 2267 states and 3209 transitions. [2022-03-17 19:00:31,290 INFO L78 Accepts]: Start accepts. Automaton has 2267 states and 3209 transitions. Word has length 196 [2022-03-17 19:00:31,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:00:31,291 INFO L478 AbstractCegarLoop]: Abstraction has 2267 states and 3209 transitions. [2022-03-17 19:00:31,291 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:00:31,291 INFO L276 IsEmpty]: Start isEmpty. Operand 2267 states and 3209 transitions. [2022-03-17 19:00:31,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2022-03-17 19:00:31,293 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:00:31,293 INFO L500 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] [2022-03-17 19:00:31,293 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-03-17 19:00:31,293 INFO L403 AbstractCegarLoop]: === Iteration 57 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:00:31,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:00:31,294 INFO L85 PathProgramCache]: Analyzing trace with hash 1887080810, now seen corresponding path program 1 times [2022-03-17 19:00:31,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:00:31,294 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710987343] [2022-03-17 19:00:31,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:00:31,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:00:32,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:00:32,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:00:32,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:00:32,452 INFO L134 CoverageAnalysis]: Checked inductivity of 363 backedges. 0 proven. 209 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2022-03-17 19:00:32,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:00:32,452 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710987343] [2022-03-17 19:00:32,453 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [710987343] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-17 19:00:32,453 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [18159133] [2022-03-17 19:00:32,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:00:32,453 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-17 19:00:32,453 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-17 19:00:32,460 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-17 19:00:32,461 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-03-17 19:00:33,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:00:33,657 INFO L263 TraceCheckSpWp]: Trace formula consists of 1291 conjuncts, 154 conjunts are in the unsatisfiable core [2022-03-17 19:00:33,681 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-17 19:00:33,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:00:33,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:00:33,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:00:34,084 INFO L356 Elim1Store]: treesize reduction 1040, result has 8.0 percent of original size [2022-03-17 19:00:34,085 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 10 case distinctions, treesize of input 5332846 treesize of output 753783 [2022-03-17 19:00:34,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:00:34,506 INFO L190 IndexEqualityManager]: detected not equals via solver