/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/loopacceleration/qvasr/qvasr_64.epf -i ../../../trunk/examples/svcomp/openssl/s3_srvr.blast.12.i.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-7390193 [2022-04-05 09:54:18,194 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-05 09:54:18,196 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-05 09:54:18,217 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-05 09:54:18,217 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-05 09:54:18,218 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-05 09:54:18,219 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-05 09:54:18,220 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-05 09:54:18,221 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-05 09:54:18,222 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-05 09:54:18,222 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-05 09:54:18,223 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-05 09:54:18,223 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-05 09:54:18,224 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-05 09:54:18,224 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-05 09:54:18,225 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-05 09:54:18,225 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-05 09:54:18,226 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-05 09:54:18,227 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-05 09:54:18,228 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-05 09:54:18,229 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-05 09:54:18,234 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-05 09:54:18,235 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-05 09:54:18,235 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-05 09:54:18,236 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-05 09:54:18,238 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-04-05 09:54:18,238 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-04-05 09:54:18,238 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-04-05 09:54:18,239 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-04-05 09:54:18,239 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-04-05 09:54:18,239 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-04-05 09:54:18,240 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-04-05 09:54:18,240 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-04-05 09:54:18,241 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-04-05 09:54:18,241 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-04-05 09:54:18,242 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-04-05 09:54:18,242 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-04-05 09:54:18,242 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-04-05 09:54:18,242 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-04-05 09:54:18,243 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-05 09:54:18,243 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-05 09:54:18,249 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-05 09:54:18,249 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/loopacceleration/qvasr/qvasr_64.epf [2022-04-05 09:54:18,279 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-05 09:54:18,279 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-05 09:54:18,280 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-04-05 09:54:18,280 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-04-05 09:54:18,280 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-04-05 09:54:18,281 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-04-05 09:54:18,281 INFO L138 SettingsManager]: * Use SBE=true [2022-04-05 09:54:18,281 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-05 09:54:18,281 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-05 09:54:18,282 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-05 09:54:18,282 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-05 09:54:18,282 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-05 09:54:18,282 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-05 09:54:18,282 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-05 09:54:18,282 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-05 09:54:18,282 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-05 09:54:18,282 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-05 09:54:18,282 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-05 09:54:18,282 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-05 09:54:18,282 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-05 09:54:18,283 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-05 09:54:18,283 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-04-05 09:54:18,283 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-04-05 09:54:18,283 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-04-05 09:54:18,283 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-04-05 09:54:18,283 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-05 09:54:18,283 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-04-05 09:54:18,284 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-04-05 09:54:18,284 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-04-05 09:54:18,285 INFO L138 SettingsManager]: * TransformationType=LOOP_ACCELERATION_QVASR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-04-05 09:54:18,493 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-05 09:54:18,518 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-05 09:54:18,520 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-05 09:54:18,521 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-05 09:54:18,521 INFO L275 PluginConnector]: CDTParser initialized [2022-04-05 09:54:18,522 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl/s3_srvr.blast.12.i.cil-2.c [2022-04-05 09:54:18,572 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e0a3c6ec3/c3272f6591dd4e65888a6418a183c69e/FLAG1e5982146 [2022-04-05 09:54:19,043 INFO L306 CDTParser]: Found 1 translation units. [2022-04-05 09:54:19,044 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.12.i.cil-2.c [2022-04-05 09:54:19,060 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e0a3c6ec3/c3272f6591dd4e65888a6418a183c69e/FLAG1e5982146 [2022-04-05 09:54:19,550 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e0a3c6ec3/c3272f6591dd4e65888a6418a183c69e [2022-04-05 09:54:19,552 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-05 09:54:19,553 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-04-05 09:54:19,557 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-05 09:54:19,557 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-05 09:54:19,561 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-05 09:54:19,561 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.04 09:54:19" (1/1) ... [2022-04-05 09:54:19,562 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b834089 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 09:54:19, skipping insertion in model container [2022-04-05 09:54:19,562 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.04 09:54:19" (1/1) ... [2022-04-05 09:54:19,567 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-05 09:54:19,626 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-05 09:54:19,897 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.12.i.cil-2.c[75436,75449] [2022-04-05 09:54:19,903 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-05 09:54:19,912 INFO L203 MainTranslator]: Completed pre-run [2022-04-05 09:54:20,028 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.12.i.cil-2.c[75436,75449] [2022-04-05 09:54:20,036 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-05 09:54:20,049 INFO L208 MainTranslator]: Completed translation [2022-04-05 09:54:20,049 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 09:54:20 WrapperNode [2022-04-05 09:54:20,051 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-05 09:54:20,052 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-05 09:54:20,052 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-05 09:54:20,052 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-05 09:54:20,062 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 09:54:20" (1/1) ... [2022-04-05 09:54:20,062 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 09:54:20" (1/1) ... [2022-04-05 09:54:20,090 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 09:54:20" (1/1) ... [2022-04-05 09:54:20,091 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 09:54:20" (1/1) ... [2022-04-05 09:54:20,145 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 09:54:20" (1/1) ... [2022-04-05 09:54:20,150 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 09:54:20" (1/1) ... [2022-04-05 09:54:20,162 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 09:54:20" (1/1) ... [2022-04-05 09:54:20,166 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-05 09:54:20,167 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-05 09:54:20,167 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-05 09:54:20,167 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-05 09:54:20,173 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 09:54:20" (1/1) ... [2022-04-05 09:54:20,177 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-05 09:54:20,187 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-05 09:54:20,197 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-04-05 09:54:20,215 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-04-05 09:54:20,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-04-05 09:54:20,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-05 09:54:20,230 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-04-05 09:54:20,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_server_method [2022-04-05 09:54:20,231 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_server_method [2022-04-05 09:54:20,231 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-04-05 09:54:20,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-04-05 09:54:20,231 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-04-05 09:54:20,232 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-04-05 09:54:20,232 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-04-05 09:54:20,232 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-04-05 09:54:20,232 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-04-05 09:54:20,232 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-04-05 09:54:20,232 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-05 09:54:20,232 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-04-05 09:54:20,232 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-04-05 09:54:20,232 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-04-05 09:54:20,233 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-04-05 09:54:20,233 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-04-05 09:54:20,233 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-04-05 09:54:20,233 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_server_method [2022-04-05 09:54:20,233 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-04-05 09:54:20,233 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-04-05 09:54:20,233 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_server_method [2022-04-05 09:54:20,233 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-04-05 09:54:20,233 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-04-05 09:54:20,233 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-04-05 09:54:20,233 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-04-05 09:54:20,233 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-05 09:54:20,233 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-04-05 09:54:20,233 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-05 09:54:20,234 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-04-05 09:54:20,234 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-04-05 09:54:20,234 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-04-05 09:54:20,234 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-05 09:54:20,234 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-05 09:54:20,234 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-04-05 09:54:20,234 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-04-05 09:54:20,234 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-04-05 09:54:20,234 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-04-05 09:54:20,234 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-05 09:54:20,395 INFO L234 CfgBuilder]: Building ICFG [2022-04-05 09:54:20,396 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-05 09:54:21,425 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-04-05 09:54:21,860 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2022-04-05 09:54:21,860 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2022-04-05 09:54:21,875 INFO L275 CfgBuilder]: Performing block encoding [2022-04-05 09:54:21,884 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-05 09:54:21,884 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-04-05 09:54:21,886 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.04 09:54:21 BoogieIcfgContainer [2022-04-05 09:54:21,886 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-05 09:54:21,887 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-04-05 09:54:21,887 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-04-05 09:54:21,888 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-04-05 09:54:21,890 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.04 09:54:21" (1/1) ... [2022-04-05 09:54:21,892 INFO L168 ansformationObserver]: Applying ICFG transformation LOOP_ACCELERATION_QVASR [2022-04-05 09:54:21,959 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 05.04 09:54:21 BasicIcfg [2022-04-05 09:54:21,959 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-04-05 09:54:21,962 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-05 09:54:21,963 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-05 09:54:21,965 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-05 09:54:21,965 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.04 09:54:19" (1/4) ... [2022-04-05 09:54:21,966 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b9e66bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.04 09:54:21, skipping insertion in model container [2022-04-05 09:54:21,966 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 09:54:20" (2/4) ... [2022-04-05 09:54:21,966 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b9e66bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.04 09:54:21, skipping insertion in model container [2022-04-05 09:54:21,966 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.04 09:54:21" (3/4) ... [2022-04-05 09:54:21,967 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b9e66bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.04 09:54:21, skipping insertion in model container [2022-04-05 09:54:21,967 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 05.04 09:54:21" (4/4) ... [2022-04-05 09:54:21,968 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr.blast.12.i.cil-2.cqvasr [2022-04-05 09:54:21,976 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-04-05 09:54:21,976 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-04-05 09:54:22,021 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-05 09:54:22,027 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP [2022-04-05 09:54:22,027 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-04-05 09:54:22,050 INFO L276 IsEmpty]: Start isEmpty. Operand has 161 states, 153 states have (on average 1.7124183006535947) internal successors, (262), 154 states have internal predecessors, (262), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-04-05 09:54:22,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-04-05 09:54:22,059 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:54:22,060 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:54:22,060 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:54:22,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:54:22,064 INFO L85 PathProgramCache]: Analyzing trace with hash 1539324216, now seen corresponding path program 1 times [2022-04-05 09:54:22,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:54:22,074 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1156935828] [2022-04-05 09:54:22,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:54:22,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:54:22,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:54:22,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:54:22,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:54:22,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 09:54:22,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:54:22,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1156935828] [2022-04-05 09:54:22,487 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1156935828] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:54:22,487 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:54:22,488 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:54:22,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947193013] [2022-04-05 09:54:22,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:54:22,492 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:54:22,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:54:22,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:54:22,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:54:22,511 INFO L87 Difference]: Start difference. First operand has 161 states, 153 states have (on average 1.7124183006535947) internal successors, (262), 154 states have internal predecessors, (262), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:54:24,308 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:54:25,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:54:25,911 INFO L93 Difference]: Finished difference Result 340 states and 572 transitions. [2022-04-05 09:54:25,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:54:25,913 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 [2022-04-05 09:54:25,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:54:25,920 INFO L225 Difference]: With dead ends: 340 [2022-04-05 09:54:25,920 INFO L226 Difference]: Without dead ends: 173 [2022-04-05 09:54:25,923 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:54:25,925 INFO L913 BasicCegarLoop]: 235 mSDtfsCounter, 34 mSDsluCounter, 390 mSDsCounter, 0 mSdLazyCounter, 421 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 625 SdHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-04-05 09:54:25,925 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 625 Invalid, 432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 421 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-04-05 09:54:25,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2022-04-05 09:54:25,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 156. [2022-04-05 09:54:25,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 151 states have (on average 1.5629139072847682) internal successors, (236), 151 states have internal predecessors, (236), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:54:25,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 240 transitions. [2022-04-05 09:54:25,957 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 240 transitions. Word has length 49 [2022-04-05 09:54:25,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:54:25,957 INFO L478 AbstractCegarLoop]: Abstraction has 156 states and 240 transitions. [2022-04-05 09:54:25,957 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) [2022-04-05 09:54:25,957 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 240 transitions. [2022-04-05 09:54:25,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-04-05 09:54:25,959 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:54:25,959 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:54:25,959 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-05 09:54:25,960 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:54:25,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:54:25,960 INFO L85 PathProgramCache]: Analyzing trace with hash 590087869, now seen corresponding path program 1 times [2022-04-05 09:54:25,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:54:25,960 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635210111] [2022-04-05 09:54:25,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:54:25,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:54:26,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:54:26,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:54:26,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:54:26,150 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 09:54:26,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:54:26,152 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1635210111] [2022-04-05 09:54:26,152 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1635210111] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:54:26,152 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:54:26,152 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:54:26,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610567094] [2022-04-05 09:54:26,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:54:26,153 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:54:26,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:54:26,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:54:26,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:54:26,154 INFO L87 Difference]: Start difference. First operand 156 states and 240 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:54:29,638 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:54:31,661 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:54:32,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:54:32,306 INFO L93 Difference]: Finished difference Result 408 states and 634 transitions. [2022-04-05 09:54:32,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:54:32,306 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 62 [2022-04-05 09:54:32,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:54:32,308 INFO L225 Difference]: With dead ends: 408 [2022-04-05 09:54:32,308 INFO L226 Difference]: Without dead ends: 278 [2022-04-05 09:54:32,309 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:54:32,310 INFO L913 BasicCegarLoop]: 275 mSDtfsCounter, 153 mSDsluCounter, 389 mSDsCounter, 0 mSdLazyCounter, 637 mSolverCounterSat, 46 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 664 SdHoareTripleChecker+Invalid, 684 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 637 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-04-05 09:54:32,310 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [153 Valid, 664 Invalid, 684 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 637 Invalid, 1 Unknown, 0 Unchecked, 6.1s Time] [2022-04-05 09:54:32,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2022-04-05 09:54:32,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 172. [2022-04-05 09:54:32,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 167 states have (on average 1.562874251497006) internal successors, (261), 167 states have internal predecessors, (261), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:54:32,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 265 transitions. [2022-04-05 09:54:32,334 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 265 transitions. Word has length 62 [2022-04-05 09:54:32,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:54:32,334 INFO L478 AbstractCegarLoop]: Abstraction has 172 states and 265 transitions. [2022-04-05 09:54:32,334 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:54:32,334 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 265 transitions. [2022-04-05 09:54:32,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-04-05 09:54:32,336 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:54:32,336 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:54:32,336 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-05 09:54:32,336 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:54:32,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:54:32,336 INFO L85 PathProgramCache]: Analyzing trace with hash -994828130, now seen corresponding path program 1 times [2022-04-05 09:54:32,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:54:32,337 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2082910565] [2022-04-05 09:54:32,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:54:32,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:54:32,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:54:32,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:54:32,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:54:32,458 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 09:54:32,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:54:32,459 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2082910565] [2022-04-05 09:54:32,459 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2082910565] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:54:32,459 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:54:32,459 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:54:32,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413247095] [2022-04-05 09:54:32,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:54:32,459 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:54:32,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:54:32,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:54:32,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:54:32,460 INFO L87 Difference]: Start difference. First operand 172 states and 265 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:54:34,476 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:54:35,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:54:35,777 INFO L93 Difference]: Finished difference Result 334 states and 513 transitions. [2022-04-05 09:54:35,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:54:35,777 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 63 [2022-04-05 09:54:35,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:54:35,778 INFO L225 Difference]: With dead ends: 334 [2022-04-05 09:54:35,778 INFO L226 Difference]: Without dead ends: 188 [2022-04-05 09:54:35,779 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:54:35,780 INFO L913 BasicCegarLoop]: 194 mSDtfsCounter, 28 mSDsluCounter, 309 mSDsCounter, 0 mSdLazyCounter, 368 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 503 SdHoareTripleChecker+Invalid, 377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-04-05 09:54:35,780 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 503 Invalid, 377 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 368 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-04-05 09:54:35,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2022-04-05 09:54:35,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 172. [2022-04-05 09:54:35,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 167 states have (on average 1.5568862275449102) internal successors, (260), 167 states have internal predecessors, (260), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:54:35,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 264 transitions. [2022-04-05 09:54:35,786 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 264 transitions. Word has length 63 [2022-04-05 09:54:35,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:54:35,790 INFO L478 AbstractCegarLoop]: Abstraction has 172 states and 264 transitions. [2022-04-05 09:54:35,790 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:54:35,790 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 264 transitions. [2022-04-05 09:54:35,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-04-05 09:54:35,796 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:54:35,797 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:54:35,797 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-04-05 09:54:35,797 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:54:35,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:54:35,798 INFO L85 PathProgramCache]: Analyzing trace with hash -207235970, now seen corresponding path program 1 times [2022-04-05 09:54:35,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:54:35,799 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176734513] [2022-04-05 09:54:35,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:54:35,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:54:35,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:54:35,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:54:35,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:54:35,928 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 09:54:35,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:54:35,931 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1176734513] [2022-04-05 09:54:35,931 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1176734513] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:54:35,931 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:54:35,931 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:54:35,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332171640] [2022-04-05 09:54:35,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:54:35,932 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:54:35,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:54:35,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:54:35,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:54:35,933 INFO L87 Difference]: Start difference. First operand 172 states and 264 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:54:37,038 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 [] [2022-04-05 09:54:39,053 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:54:40,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:54:40,256 INFO L93 Difference]: Finished difference Result 334 states and 512 transitions. [2022-04-05 09:54:40,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:54:40,256 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 63 [2022-04-05 09:54:40,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:54:40,257 INFO L225 Difference]: With dead ends: 334 [2022-04-05 09:54:40,257 INFO L226 Difference]: Without dead ends: 188 [2022-04-05 09:54:40,258 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:54:40,259 INFO L913 BasicCegarLoop]: 194 mSDtfsCounter, 26 mSDsluCounter, 309 mSDsCounter, 0 mSdLazyCounter, 367 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 503 SdHoareTripleChecker+Invalid, 377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 367 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-04-05 09:54:40,259 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [26 Valid, 503 Invalid, 377 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 367 Invalid, 1 Unknown, 0 Unchecked, 4.3s Time] [2022-04-05 09:54:40,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2022-04-05 09:54:40,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 172. [2022-04-05 09:54:40,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 167 states have (on average 1.5508982035928143) internal successors, (259), 167 states have internal predecessors, (259), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:54:40,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 263 transitions. [2022-04-05 09:54:40,265 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 263 transitions. Word has length 63 [2022-04-05 09:54:40,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:54:40,265 INFO L478 AbstractCegarLoop]: Abstraction has 172 states and 263 transitions. [2022-04-05 09:54:40,266 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:54:40,266 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 263 transitions. [2022-04-05 09:54:40,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-04-05 09:54:40,266 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:54:40,266 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:54:40,267 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-04-05 09:54:40,267 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:54:40,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:54:40,267 INFO L85 PathProgramCache]: Analyzing trace with hash 1559777342, now seen corresponding path program 1 times [2022-04-05 09:54:40,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:54:40,267 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221068587] [2022-04-05 09:54:40,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:54:40,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:54:40,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:54:40,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:54:40,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:54:40,395 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 09:54:40,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:54:40,395 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221068587] [2022-04-05 09:54:40,396 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1221068587] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:54:40,396 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:54:40,396 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:54:40,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455008134] [2022-04-05 09:54:40,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:54:40,397 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:54:40,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:54:40,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:54:40,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:54:40,397 INFO L87 Difference]: Start difference. First operand 172 states and 263 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:54:43,373 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:54:43,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:54:43,831 INFO L93 Difference]: Finished difference Result 440 states and 683 transitions. [2022-04-05 09:54:43,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:54:43,831 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 63 [2022-04-05 09:54:43,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:54:43,832 INFO L225 Difference]: With dead ends: 440 [2022-04-05 09:54:43,832 INFO L226 Difference]: Without dead ends: 294 [2022-04-05 09:54:43,833 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:54:43,834 INFO L913 BasicCegarLoop]: 123 mSDtfsCounter, 152 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 547 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-04-05 09:54:43,834 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [152 Valid, 360 Invalid, 547 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 483 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-04-05 09:54:43,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2022-04-05 09:54:43,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 189. [2022-04-05 09:54:43,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189 states, 184 states have (on average 1.5543478260869565) internal successors, (286), 184 states have internal predecessors, (286), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:54:43,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 290 transitions. [2022-04-05 09:54:43,845 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 290 transitions. Word has length 63 [2022-04-05 09:54:43,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:54:43,845 INFO L478 AbstractCegarLoop]: Abstraction has 189 states and 290 transitions. [2022-04-05 09:54:43,846 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:54:43,846 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 290 transitions. [2022-04-05 09:54:43,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-04-05 09:54:43,847 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:54:43,847 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:54:43,847 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-04-05 09:54:43,847 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:54:43,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:54:43,847 INFO L85 PathProgramCache]: Analyzing trace with hash 1101901086, now seen corresponding path program 1 times [2022-04-05 09:54:43,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:54:43,848 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831789255] [2022-04-05 09:54:43,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:54:43,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:54:43,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:54:43,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:54:43,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:54:43,978 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 09:54:43,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:54:43,978 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831789255] [2022-04-05 09:54:43,978 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1831789255] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:54:43,979 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:54:43,979 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:54:43,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089722020] [2022-04-05 09:54:43,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:54:43,979 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:54:43,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:54:43,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:54:43,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:54:43,980 INFO L87 Difference]: Start difference. First operand 189 states and 290 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:54:46,701 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:54:48,723 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:54:49,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:54:49,932 INFO L93 Difference]: Finished difference Result 365 states and 563 transitions. [2022-04-05 09:54:49,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:54:49,932 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 63 [2022-04-05 09:54:49,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:54:49,933 INFO L225 Difference]: With dead ends: 365 [2022-04-05 09:54:49,933 INFO L226 Difference]: Without dead ends: 202 [2022-04-05 09:54:49,934 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:54:49,934 INFO L913 BasicCegarLoop]: 197 mSDtfsCounter, 18 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 360 mSolverCounterSat, 8 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 509 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 360 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-04-05 09:54:49,934 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 509 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 360 Invalid, 2 Unknown, 0 Unchecked, 5.9s Time] [2022-04-05 09:54:49,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2022-04-05 09:54:49,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 189. [2022-04-05 09:54:49,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189 states, 184 states have (on average 1.548913043478261) internal successors, (285), 184 states have internal predecessors, (285), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:54:49,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 289 transitions. [2022-04-05 09:54:49,940 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 289 transitions. Word has length 63 [2022-04-05 09:54:49,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:54:49,940 INFO L478 AbstractCegarLoop]: Abstraction has 189 states and 289 transitions. [2022-04-05 09:54:49,940 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:54:49,941 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 289 transitions. [2022-04-05 09:54:49,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-04-05 09:54:49,941 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:54:49,941 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:54:49,941 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-04-05 09:54:49,941 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:54:49,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:54:49,942 INFO L85 PathProgramCache]: Analyzing trace with hash -2045071267, now seen corresponding path program 1 times [2022-04-05 09:54:49,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:54:49,942 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447390323] [2022-04-05 09:54:49,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:54:49,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:54:49,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:54:50,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:54:50,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:54:50,046 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 09:54:50,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:54:50,046 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447390323] [2022-04-05 09:54:50,046 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [447390323] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:54:50,046 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:54:50,046 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:54:50,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731229809] [2022-04-05 09:54:50,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:54:50,047 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:54:50,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:54:50,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:54:50,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:54:50,048 INFO L87 Difference]: Start difference. First operand 189 states and 289 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:54:51,130 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:54:53,095 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:54:55,116 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:54:55,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:54:55,466 INFO L93 Difference]: Finished difference Result 365 states and 562 transitions. [2022-04-05 09:54:55,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:54:55,467 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 64 [2022-04-05 09:54:55,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:54:55,468 INFO L225 Difference]: With dead ends: 365 [2022-04-05 09:54:55,468 INFO L226 Difference]: Without dead ends: 202 [2022-04-05 09:54:55,468 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:54:55,469 INFO L913 BasicCegarLoop]: 197 mSDtfsCounter, 22 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 361 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 509 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 361 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-04-05 09:54:55,469 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 509 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 361 Invalid, 1 Unknown, 0 Unchecked, 5.4s Time] [2022-04-05 09:54:55,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2022-04-05 09:54:55,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 189. [2022-04-05 09:54:55,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189 states, 184 states have (on average 1.5434782608695652) internal successors, (284), 184 states have internal predecessors, (284), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:54:55,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 288 transitions. [2022-04-05 09:54:55,474 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 288 transitions. Word has length 64 [2022-04-05 09:54:55,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:54:55,474 INFO L478 AbstractCegarLoop]: Abstraction has 189 states and 288 transitions. [2022-04-05 09:54:55,474 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:54:55,474 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 288 transitions. [2022-04-05 09:54:55,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-04-05 09:54:55,475 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:54:55,475 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:54:55,475 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-04-05 09:54:55,475 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:54:55,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:54:55,475 INFO L85 PathProgramCache]: Analyzing trace with hash 673154778, now seen corresponding path program 1 times [2022-04-05 09:54:55,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:54:55,475 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [195947953] [2022-04-05 09:54:55,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:54:55,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:54:55,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:54:55,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:54:55,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:54:55,586 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 09:54:55,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:54:55,586 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [195947953] [2022-04-05 09:54:55,586 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [195947953] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:54:55,586 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:54:55,586 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:54:55,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938061060] [2022-04-05 09:54:55,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:54:55,587 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:54:55,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:54:55,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:54:55,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:54:55,587 INFO L87 Difference]: Start difference. First operand 189 states and 288 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:54:56,679 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 [] [2022-04-05 09:54:58,695 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:54:59,874 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:55:01,338 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 [] [2022-04-05 09:55:01,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:55:01,822 INFO L93 Difference]: Finished difference Result 457 states and 707 transitions. [2022-04-05 09:55:01,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:55:01,822 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 65 [2022-04-05 09:55:01,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:55:01,823 INFO L225 Difference]: With dead ends: 457 [2022-04-05 09:55:01,823 INFO L226 Difference]: Without dead ends: 294 [2022-04-05 09:55:01,824 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:55:01,824 INFO L913 BasicCegarLoop]: 123 mSDtfsCounter, 154 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 64 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 547 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-04-05 09:55:01,824 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [154 Valid, 360 Invalid, 547 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 482 Invalid, 1 Unknown, 0 Unchecked, 6.2s Time] [2022-04-05 09:55:01,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2022-04-05 09:55:01,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 189. [2022-04-05 09:55:01,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189 states, 184 states have (on average 1.5271739130434783) internal successors, (281), 184 states have internal predecessors, (281), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:55:01,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 285 transitions. [2022-04-05 09:55:01,831 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 285 transitions. Word has length 65 [2022-04-05 09:55:01,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:55:01,831 INFO L478 AbstractCegarLoop]: Abstraction has 189 states and 285 transitions. [2022-04-05 09:55:01,831 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:55:01,831 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 285 transitions. [2022-04-05 09:55:01,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-04-05 09:55:01,832 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:55:01,832 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:55:01,832 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-04-05 09:55:01,832 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:55:01,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:55:01,832 INFO L85 PathProgramCache]: Analyzing trace with hash -216258342, now seen corresponding path program 1 times [2022-04-05 09:55:01,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:55:01,832 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074194216] [2022-04-05 09:55:01,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:55:01,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:55:01,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:55:01,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:55:01,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:55:01,952 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 09:55:01,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:55:01,953 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1074194216] [2022-04-05 09:55:01,953 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1074194216] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:55:01,953 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:55:01,953 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:55:01,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876651372] [2022-04-05 09:55:01,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:55:01,954 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:55:01,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:55:01,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:55:01,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:55:01,955 INFO L87 Difference]: Start difference. First operand 189 states and 285 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:55:03,180 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:55:04,384 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:55:05,636 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:55:07,654 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:55:07,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:55:07,973 INFO L93 Difference]: Finished difference Result 355 states and 543 transitions. [2022-04-05 09:55:07,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:55:07,974 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 66 [2022-04-05 09:55:07,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:55:07,975 INFO L225 Difference]: With dead ends: 355 [2022-04-05 09:55:07,975 INFO L226 Difference]: Without dead ends: 192 [2022-04-05 09:55:07,975 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:55:07,976 INFO L913 BasicCegarLoop]: 204 mSDtfsCounter, 11 mSDsluCounter, 319 mSDsCounter, 0 mSdLazyCounter, 347 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 523 SdHoareTripleChecker+Invalid, 352 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 347 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-04-05 09:55:07,976 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 523 Invalid, 352 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 347 Invalid, 1 Unknown, 0 Unchecked, 6.0s Time] [2022-04-05 09:55:07,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2022-04-05 09:55:07,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 189. [2022-04-05 09:55:07,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189 states, 184 states have (on average 1.5217391304347827) internal successors, (280), 184 states have internal predecessors, (280), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:55:07,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 284 transitions. [2022-04-05 09:55:07,981 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 284 transitions. Word has length 66 [2022-04-05 09:55:07,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:55:07,981 INFO L478 AbstractCegarLoop]: Abstraction has 189 states and 284 transitions. [2022-04-05 09:55:07,981 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:55:07,981 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 284 transitions. [2022-04-05 09:55:07,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-04-05 09:55:07,982 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:55:07,982 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:55:07,982 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-04-05 09:55:07,982 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:55:07,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:55:07,982 INFO L85 PathProgramCache]: Analyzing trace with hash -504399797, now seen corresponding path program 1 times [2022-04-05 09:55:07,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:55:07,983 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014500254] [2022-04-05 09:55:07,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:55:07,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:55:08,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:55:08,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:55:08,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:55:08,084 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 09:55:08,084 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:55:08,085 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1014500254] [2022-04-05 09:55:08,085 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1014500254] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:55:08,085 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:55:08,085 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:55:08,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576761723] [2022-04-05 09:55:08,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:55:08,085 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:55:08,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:55:08,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:55:08,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:55:08,086 INFO L87 Difference]: Start difference. First operand 189 states and 284 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:55:09,533 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:55:11,549 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:55:13,573 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:55:14,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:55:14,045 INFO L93 Difference]: Finished difference Result 475 states and 728 transitions. [2022-04-05 09:55:14,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:55:14,045 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 66 [2022-04-05 09:55:14,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:55:14,046 INFO L225 Difference]: With dead ends: 475 [2022-04-05 09:55:14,047 INFO L226 Difference]: Without dead ends: 312 [2022-04-05 09:55:14,047 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:55:14,048 INFO L913 BasicCegarLoop]: 124 mSDtfsCounter, 129 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 485 mSolverCounterSat, 61 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 362 SdHoareTripleChecker+Invalid, 548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 485 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-04-05 09:55:14,048 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [129 Valid, 362 Invalid, 548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 485 Invalid, 2 Unknown, 0 Unchecked, 5.9s Time] [2022-04-05 09:55:14,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2022-04-05 09:55:14,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 229. [2022-04-05 09:55:14,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 229 states, 224 states have (on average 1.5625) internal successors, (350), 224 states have internal predecessors, (350), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:55:14,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 354 transitions. [2022-04-05 09:55:14,053 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 354 transitions. Word has length 66 [2022-04-05 09:55:14,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:55:14,053 INFO L478 AbstractCegarLoop]: Abstraction has 229 states and 354 transitions. [2022-04-05 09:55:14,053 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:55:14,053 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 354 transitions. [2022-04-05 09:55:14,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-04-05 09:55:14,054 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:55:14,054 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:55:14,054 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-04-05 09:55:14,054 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:55:14,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:55:14,054 INFO L85 PathProgramCache]: Analyzing trace with hash 1572904911, now seen corresponding path program 1 times [2022-04-05 09:55:14,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:55:14,055 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619194960] [2022-04-05 09:55:14,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:55:14,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:55:14,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:55:14,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:55:14,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:55:14,160 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 09:55:14,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:55:14,160 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1619194960] [2022-04-05 09:55:14,160 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1619194960] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:55:14,160 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:55:14,160 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:55:14,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128697631] [2022-04-05 09:55:14,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:55:14,161 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:55:14,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:55:14,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:55:14,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:55:14,161 INFO L87 Difference]: Start difference. First operand 229 states and 354 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:55:15,957 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:55:17,982 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:55:20,448 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 [] [2022-04-05 09:55:20,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:55:20,927 INFO L93 Difference]: Finished difference Result 537 states and 841 transitions. [2022-04-05 09:55:20,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:55:20,928 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 67 [2022-04-05 09:55:20,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:55:20,929 INFO L225 Difference]: With dead ends: 537 [2022-04-05 09:55:20,929 INFO L226 Difference]: Without dead ends: 334 [2022-04-05 09:55:20,930 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:55:20,930 INFO L913 BasicCegarLoop]: 133 mSDtfsCounter, 128 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 492 mSolverCounterSat, 62 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 555 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 492 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2022-04-05 09:55:20,930 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [128 Valid, 380 Invalid, 555 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 492 Invalid, 1 Unknown, 0 Unchecked, 6.7s Time] [2022-04-05 09:55:20,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2022-04-05 09:55:20,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 252. [2022-04-05 09:55:20,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 252 states, 247 states have (on average 1.5991902834008098) internal successors, (395), 247 states have internal predecessors, (395), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:55:20,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 399 transitions. [2022-04-05 09:55:20,936 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 399 transitions. Word has length 67 [2022-04-05 09:55:20,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:55:20,936 INFO L478 AbstractCegarLoop]: Abstraction has 252 states and 399 transitions. [2022-04-05 09:55:20,936 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:55:20,936 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 399 transitions. [2022-04-05 09:55:20,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-04-05 09:55:20,937 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:55:20,937 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:55:20,937 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-04-05 09:55:20,937 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:55:20,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:55:20,937 INFO L85 PathProgramCache]: Analyzing trace with hash -1467131228, now seen corresponding path program 1 times [2022-04-05 09:55:20,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:55:20,937 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055859878] [2022-04-05 09:55:20,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:55:20,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:55:20,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:55:21,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:55:21,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:55:21,034 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-04-05 09:55:21,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:55:21,034 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2055859878] [2022-04-05 09:55:21,034 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2055859878] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:55:21,034 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:55:21,035 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:55:21,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618899845] [2022-04-05 09:55:21,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:55:21,035 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:55:21,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:55:21,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:55:21,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:55:21,036 INFO L87 Difference]: Start difference. First operand 252 states and 399 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:55:22,507 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:55:24,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:55:24,382 INFO L93 Difference]: Finished difference Result 519 states and 829 transitions. [2022-04-05 09:55:24,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:55:24,383 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 95 [2022-04-05 09:55:24,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:55:24,384 INFO L225 Difference]: With dead ends: 519 [2022-04-05 09:55:24,384 INFO L226 Difference]: Without dead ends: 293 [2022-04-05 09:55:24,384 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:55:24,385 INFO L913 BasicCegarLoop]: 202 mSDtfsCounter, 31 mSDsluCounter, 323 mSDsCounter, 0 mSdLazyCounter, 400 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 525 SdHoareTripleChecker+Invalid, 410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 400 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-04-05 09:55:24,385 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [31 Valid, 525 Invalid, 410 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 400 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-04-05 09:55:24,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2022-04-05 09:55:24,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 274. [2022-04-05 09:55:24,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274 states, 269 states have (on average 1.5985130111524164) internal successors, (430), 269 states have internal predecessors, (430), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:55:24,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 434 transitions. [2022-04-05 09:55:24,390 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 434 transitions. Word has length 95 [2022-04-05 09:55:24,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:55:24,391 INFO L478 AbstractCegarLoop]: Abstraction has 274 states and 434 transitions. [2022-04-05 09:55:24,391 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:55:24,391 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 434 transitions. [2022-04-05 09:55:24,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-04-05 09:55:24,391 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:55:24,392 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:55:24,392 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-04-05 09:55:24,392 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:55:24,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:55:24,392 INFO L85 PathProgramCache]: Analyzing trace with hash -1395619266, now seen corresponding path program 1 times [2022-04-05 09:55:24,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:55:24,392 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546403874] [2022-04-05 09:55:24,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:55:24,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:55:24,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:55:24,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:55:24,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:55:24,480 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-04-05 09:55:24,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:55:24,481 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1546403874] [2022-04-05 09:55:24,481 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1546403874] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:55:24,481 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:55:24,481 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:55:24,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177531609] [2022-04-05 09:55:24,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:55:24,481 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:55:24,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:55:24,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:55:24,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:55:24,482 INFO L87 Difference]: Start difference. First operand 274 states and 434 transitions. Second operand has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:55:26,341 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:55:27,999 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:55:28,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:55:28,943 INFO L93 Difference]: Finished difference Result 535 states and 854 transitions. [2022-04-05 09:55:28,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:55:28,943 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 109 [2022-04-05 09:55:28,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:55:28,945 INFO L225 Difference]: With dead ends: 535 [2022-04-05 09:55:28,945 INFO L226 Difference]: Without dead ends: 287 [2022-04-05 09:55:28,946 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:55:28,946 INFO L913 BasicCegarLoop]: 235 mSDtfsCounter, 21 mSDsluCounter, 355 mSDsCounter, 0 mSdLazyCounter, 404 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 590 SdHoareTripleChecker+Invalid, 414 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 404 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-04-05 09:55:28,947 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [21 Valid, 590 Invalid, 414 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 404 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2022-04-05 09:55:28,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2022-04-05 09:55:28,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 274. [2022-04-05 09:55:28,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274 states, 269 states have (on average 1.5947955390334572) internal successors, (429), 269 states have internal predecessors, (429), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:55:28,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 433 transitions. [2022-04-05 09:55:28,952 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 433 transitions. Word has length 109 [2022-04-05 09:55:28,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:55:28,953 INFO L478 AbstractCegarLoop]: Abstraction has 274 states and 433 transitions. [2022-04-05 09:55:28,953 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:55:28,953 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 433 transitions. [2022-04-05 09:55:28,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-04-05 09:55:28,955 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:55:28,955 INFO L499 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:55:28,955 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-04-05 09:55:28,956 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:55:28,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:55:28,956 INFO L85 PathProgramCache]: Analyzing trace with hash 1655197118, now seen corresponding path program 1 times [2022-04-05 09:55:28,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:55:28,956 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865648203] [2022-04-05 09:55:28,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:55:28,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:55:29,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:55:29,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:55:29,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:55:29,075 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-04-05 09:55:29,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:55:29,076 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1865648203] [2022-04-05 09:55:29,076 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1865648203] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:55:29,076 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:55:29,076 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:55:29,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298829432] [2022-04-05 09:55:29,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:55:29,076 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:55:29,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:55:29,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:55:29,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:55:29,077 INFO L87 Difference]: Start difference. First operand 274 states and 433 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:55:30,334 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:55:32,354 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:55:34,377 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:55:36,398 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:55:36,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:55:36,737 INFO L93 Difference]: Finished difference Result 540 states and 860 transitions. [2022-04-05 09:55:36,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:55:36,738 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 109 [2022-04-05 09:55:36,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:55:36,739 INFO L225 Difference]: With dead ends: 540 [2022-04-05 09:55:36,739 INFO L226 Difference]: Without dead ends: 292 [2022-04-05 09:55:36,739 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:55:36,740 INFO L913 BasicCegarLoop]: 204 mSDtfsCounter, 34 mSDsluCounter, 323 mSDsCounter, 0 mSdLazyCounter, 394 mSolverCounterSat, 10 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 527 SdHoareTripleChecker+Invalid, 407 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 394 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2022-04-05 09:55:36,740 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 527 Invalid, 407 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 394 Invalid, 3 Unknown, 0 Unchecked, 7.6s Time] [2022-04-05 09:55:36,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2022-04-05 09:55:36,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 274. [2022-04-05 09:55:36,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274 states, 269 states have (on average 1.5910780669144982) internal successors, (428), 269 states have internal predecessors, (428), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:55:36,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 432 transitions. [2022-04-05 09:55:36,745 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 432 transitions. Word has length 109 [2022-04-05 09:55:36,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:55:36,745 INFO L478 AbstractCegarLoop]: Abstraction has 274 states and 432 transitions. [2022-04-05 09:55:36,745 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:55:36,745 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 432 transitions. [2022-04-05 09:55:36,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-04-05 09:55:36,746 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:55:36,746 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:55:36,746 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-04-05 09:55:36,746 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:55:36,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:55:36,747 INFO L85 PathProgramCache]: Analyzing trace with hash -1978728096, now seen corresponding path program 1 times [2022-04-05 09:55:36,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:55:36,747 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479994535] [2022-04-05 09:55:36,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:55:36,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:55:36,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:55:36,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:55:36,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:55:36,847 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-04-05 09:55:36,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:55:36,848 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [479994535] [2022-04-05 09:55:36,848 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [479994535] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:55:36,848 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:55:36,848 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-05 09:55:36,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841902921] [2022-04-05 09:55:36,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:55:36,848 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-05 09:55:36,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:55:36,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-05 09:55:36,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:55:36,849 INFO L87 Difference]: Start difference. First operand 274 states and 432 transitions. Second operand has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 5 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:55:38,535 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:55:40,560 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:55:41,900 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:55:43,919 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:55:45,538 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:55:45,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:55:45,889 INFO L93 Difference]: Finished difference Result 531 states and 846 transitions. [2022-04-05 09:55:45,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-05 09:55:45,890 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 5 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 110 [2022-04-05 09:55:45,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:55:45,891 INFO L225 Difference]: With dead ends: 531 [2022-04-05 09:55:45,891 INFO L226 Difference]: Without dead ends: 283 [2022-04-05 09:55:45,892 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-04-05 09:55:45,892 INFO L913 BasicCegarLoop]: 209 mSDtfsCounter, 3 mSDsluCounter, 448 mSDsCounter, 0 mSdLazyCounter, 440 mSolverCounterSat, 4 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 657 SdHoareTripleChecker+Invalid, 446 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 440 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.0s IncrementalHoareTripleChecker+Time [2022-04-05 09:55:45,892 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 657 Invalid, 446 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 440 Invalid, 2 Unknown, 0 Unchecked, 9.0s Time] [2022-04-05 09:55:45,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2022-04-05 09:55:45,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 283. [2022-04-05 09:55:45,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 278 states have (on average 1.579136690647482) internal successors, (439), 278 states have internal predecessors, (439), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:55:45,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 443 transitions. [2022-04-05 09:55:45,898 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 443 transitions. Word has length 110 [2022-04-05 09:55:45,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:55:45,898 INFO L478 AbstractCegarLoop]: Abstraction has 283 states and 443 transitions. [2022-04-05 09:55:45,898 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 5 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:55:45,898 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 443 transitions. [2022-04-05 09:55:45,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-04-05 09:55:45,899 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:55:45,899 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:55:45,899 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-04-05 09:55:45,899 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:55:45,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:55:45,900 INFO L85 PathProgramCache]: Analyzing trace with hash -856380096, now seen corresponding path program 1 times [2022-04-05 09:55:45,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:55:45,900 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108409754] [2022-04-05 09:55:45,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:55:45,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:55:45,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:55:45,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:55:45,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:55:45,996 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-04-05 09:55:45,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:55:45,997 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2108409754] [2022-04-05 09:55:45,997 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2108409754] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:55:45,997 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:55:45,997 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:55:45,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915997467] [2022-04-05 09:55:45,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:55:45,997 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:55:45,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:55:45,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:55:45,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:55:45,998 INFO L87 Difference]: Start difference. First operand 283 states and 443 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) [2022-04-05 09:55:47,754 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 [] [2022-04-05 09:55:50,097 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:55:52,124 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:55:52,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:55:52,440 INFO L93 Difference]: Finished difference Result 567 states and 891 transitions. [2022-04-05 09:55:52,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:55:52,440 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 110 [2022-04-05 09:55:52,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:55:52,441 INFO L225 Difference]: With dead ends: 567 [2022-04-05 09:55:52,441 INFO L226 Difference]: Without dead ends: 310 [2022-04-05 09:55:52,442 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:55:52,442 INFO L913 BasicCegarLoop]: 204 mSDtfsCounter, 39 mSDsluCounter, 323 mSDsCounter, 0 mSdLazyCounter, 396 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 527 SdHoareTripleChecker+Invalid, 407 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 396 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2022-04-05 09:55:52,442 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [39 Valid, 527 Invalid, 407 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 396 Invalid, 1 Unknown, 0 Unchecked, 6.4s Time] [2022-04-05 09:55:52,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2022-04-05 09:55:52,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 283. [2022-04-05 09:55:52,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 278 states have (on average 1.5755395683453237) internal successors, (438), 278 states have internal predecessors, (438), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:55:52,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 442 transitions. [2022-04-05 09:55:52,447 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 442 transitions. Word has length 110 [2022-04-05 09:55:52,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:55:52,447 INFO L478 AbstractCegarLoop]: Abstraction has 283 states and 442 transitions. [2022-04-05 09:55:52,448 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) [2022-04-05 09:55:52,448 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 442 transitions. [2022-04-05 09:55:52,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-04-05 09:55:52,448 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:55:52,448 INFO L499 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:55:52,449 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-04-05 09:55:52,449 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:55:52,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:55:52,449 INFO L85 PathProgramCache]: Analyzing trace with hash 451816985, now seen corresponding path program 1 times [2022-04-05 09:55:52,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:55:52,449 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605112224] [2022-04-05 09:55:52,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:55:52,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:55:52,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:55:52,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:55:52,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:55:52,546 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-04-05 09:55:52,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:55:52,546 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1605112224] [2022-04-05 09:55:52,547 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1605112224] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:55:52,547 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:55:52,547 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:55:52,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138905820] [2022-04-05 09:55:52,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:55:52,547 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:55:52,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:55:52,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:55:52,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:55:52,548 INFO L87 Difference]: Start difference. First operand 283 states and 442 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) [2022-04-05 09:55:55,024 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:55:56,778 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:55:58,803 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:55:59,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:55:59,246 INFO L93 Difference]: Finished difference Result 631 states and 982 transitions. [2022-04-05 09:55:59,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:55:59,246 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 111 [2022-04-05 09:55:59,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:55:59,247 INFO L225 Difference]: With dead ends: 631 [2022-04-05 09:55:59,247 INFO L226 Difference]: Without dead ends: 374 [2022-04-05 09:55:59,248 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:55:59,248 INFO L913 BasicCegarLoop]: 133 mSDtfsCounter, 154 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 491 mSolverCounterSat, 62 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 555 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 491 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2022-04-05 09:55:59,248 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [154 Valid, 380 Invalid, 555 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 491 Invalid, 2 Unknown, 0 Unchecked, 6.7s Time] [2022-04-05 09:55:59,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 374 states. [2022-04-05 09:55:59,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 374 to 283. [2022-04-05 09:55:59,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 278 states have (on average 1.5611510791366907) internal successors, (434), 278 states have internal predecessors, (434), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:55:59,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 438 transitions. [2022-04-05 09:55:59,255 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 438 transitions. Word has length 111 [2022-04-05 09:55:59,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:55:59,255 INFO L478 AbstractCegarLoop]: Abstraction has 283 states and 438 transitions. [2022-04-05 09:55:59,255 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) [2022-04-05 09:55:59,255 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 438 transitions. [2022-04-05 09:55:59,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-04-05 09:55:59,256 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:55:59,256 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:55:59,256 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-04-05 09:55:59,256 INFO L403 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:55:59,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:55:59,256 INFO L85 PathProgramCache]: Analyzing trace with hash 329100950, now seen corresponding path program 1 times [2022-04-05 09:55:59,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:55:59,257 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686891221] [2022-04-05 09:55:59,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:55:59,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:55:59,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:55:59,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:55:59,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:55:59,352 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-04-05 09:55:59,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:55:59,353 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686891221] [2022-04-05 09:55:59,353 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [686891221] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:55:59,353 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:55:59,353 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:55:59,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722724108] [2022-04-05 09:55:59,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:55:59,353 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:55:59,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:55:59,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:55:59,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:55:59,354 INFO L87 Difference]: Start difference. First operand 283 states and 438 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:56:00,389 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:56:02,223 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:56:04,737 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:56:05,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:56:05,073 INFO L93 Difference]: Finished difference Result 557 states and 868 transitions. [2022-04-05 09:56:05,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:56:05,073 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 113 [2022-04-05 09:56:05,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:56:05,074 INFO L225 Difference]: With dead ends: 557 [2022-04-05 09:56:05,074 INFO L226 Difference]: Without dead ends: 300 [2022-04-05 09:56:05,075 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:56:05,075 INFO L913 BasicCegarLoop]: 205 mSDtfsCounter, 33 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 394 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 529 SdHoareTripleChecker+Invalid, 405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 394 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-04-05 09:56:05,075 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 529 Invalid, 405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 394 Invalid, 1 Unknown, 0 Unchecked, 5.7s Time] [2022-04-05 09:56:05,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2022-04-05 09:56:05,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 283. [2022-04-05 09:56:05,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 278 states have (on average 1.5575539568345325) internal successors, (433), 278 states have internal predecessors, (433), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:56:05,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 437 transitions. [2022-04-05 09:56:05,080 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 437 transitions. Word has length 113 [2022-04-05 09:56:05,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:56:05,080 INFO L478 AbstractCegarLoop]: Abstraction has 283 states and 437 transitions. [2022-04-05 09:56:05,080 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:56:05,081 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 437 transitions. [2022-04-05 09:56:05,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-04-05 09:56:05,081 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:56:05,081 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:56:05,081 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-04-05 09:56:05,081 INFO L403 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:56:05,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:56:05,082 INFO L85 PathProgramCache]: Analyzing trace with hash 1124427590, now seen corresponding path program 1 times [2022-04-05 09:56:05,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:56:05,082 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [810689577] [2022-04-05 09:56:05,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:56:05,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:56:05,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:56:05,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:56:05,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:56:05,154 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 67 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-04-05 09:56:05,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:56:05,155 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [810689577] [2022-04-05 09:56:05,155 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [810689577] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:56:05,155 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:56:05,155 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-05 09:56:05,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406033541] [2022-04-05 09:56:05,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:56:05,155 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-05 09:56:05,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:56:05,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-05 09:56:05,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 09:56:05,156 INFO L87 Difference]: Start difference. First operand 283 states and 437 transitions. Second operand has 4 states, 4 states have (on average 21.75) internal successors, (87), 3 states have internal predecessors, (87), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:56:06,659 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 [] [2022-04-05 09:56:07,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:56:07,621 INFO L93 Difference]: Finished difference Result 792 states and 1246 transitions. [2022-04-05 09:56:07,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-05 09:56:07,622 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 3 states have internal predecessors, (87), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 117 [2022-04-05 09:56:07,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:56:07,623 INFO L225 Difference]: With dead ends: 792 [2022-04-05 09:56:07,623 INFO L226 Difference]: Without dead ends: 535 [2022-04-05 09:56:07,624 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 09:56:07,624 INFO L913 BasicCegarLoop]: 347 mSDtfsCounter, 164 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 402 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 541 SdHoareTripleChecker+Invalid, 416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-05 09:56:07,624 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [164 Valid, 541 Invalid, 416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 402 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-04-05 09:56:07,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 535 states. [2022-04-05 09:56:07,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 535 to 535. [2022-04-05 09:56:07,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 535 states, 530 states have (on average 1.5509433962264152) internal successors, (822), 530 states have internal predecessors, (822), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:56:07,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 535 states to 535 states and 826 transitions. [2022-04-05 09:56:07,632 INFO L78 Accepts]: Start accepts. Automaton has 535 states and 826 transitions. Word has length 117 [2022-04-05 09:56:07,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:56:07,633 INFO L478 AbstractCegarLoop]: Abstraction has 535 states and 826 transitions. [2022-04-05 09:56:07,633 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 3 states have internal predecessors, (87), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:56:07,633 INFO L276 IsEmpty]: Start isEmpty. Operand 535 states and 826 transitions. [2022-04-05 09:56:07,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-04-05 09:56:07,634 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:56:07,634 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:56:07,634 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-04-05 09:56:07,634 INFO L403 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:56:07,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:56:07,634 INFO L85 PathProgramCache]: Analyzing trace with hash 1608102917, now seen corresponding path program 1 times [2022-04-05 09:56:07,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:56:07,635 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66367224] [2022-04-05 09:56:07,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:56:07,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:56:07,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:56:07,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:56:07,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:56:07,760 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-04-05 09:56:07,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:56:07,761 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [66367224] [2022-04-05 09:56:07,761 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [66367224] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:56:07,761 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:56:07,761 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:56:07,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112779414] [2022-04-05 09:56:07,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:56:07,761 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:56:07,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:56:07,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:56:07,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:56:07,762 INFO L87 Difference]: Start difference. First operand 535 states and 826 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) [2022-04-05 09:56:09,070 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:56:10,850 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:56:12,875 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:56:14,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:56:14,087 INFO L93 Difference]: Finished difference Result 1255 states and 1932 transitions. [2022-04-05 09:56:14,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:56:14,088 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 117 [2022-04-05 09:56:14,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:56:14,090 INFO L225 Difference]: With dead ends: 1255 [2022-04-05 09:56:14,090 INFO L226 Difference]: Without dead ends: 746 [2022-04-05 09:56:14,091 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:56:14,091 INFO L913 BasicCegarLoop]: 201 mSDtfsCounter, 94 mSDsluCounter, 322 mSDsCounter, 0 mSdLazyCounter, 533 mSolverCounterSat, 12 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 523 SdHoareTripleChecker+Invalid, 546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 533 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-04-05 09:56:14,091 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [94 Valid, 523 Invalid, 546 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 533 Invalid, 1 Unknown, 0 Unchecked, 6.3s Time] [2022-04-05 09:56:14,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 746 states. [2022-04-05 09:56:14,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 746 to 602. [2022-04-05 09:56:14,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 602 states, 597 states have (on average 1.5628140703517588) internal successors, (933), 597 states have internal predecessors, (933), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:56:14,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 602 states to 602 states and 937 transitions. [2022-04-05 09:56:14,101 INFO L78 Accepts]: Start accepts. Automaton has 602 states and 937 transitions. Word has length 117 [2022-04-05 09:56:14,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:56:14,101 INFO L478 AbstractCegarLoop]: Abstraction has 602 states and 937 transitions. [2022-04-05 09:56:14,101 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) [2022-04-05 09:56:14,101 INFO L276 IsEmpty]: Start isEmpty. Operand 602 states and 937 transitions. [2022-04-05 09:56:14,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-04-05 09:56:14,102 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:56:14,102 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:56:14,103 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-04-05 09:56:14,103 INFO L403 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:56:14,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:56:14,103 INFO L85 PathProgramCache]: Analyzing trace with hash 1361789830, now seen corresponding path program 1 times [2022-04-05 09:56:14,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:56:14,103 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452258358] [2022-04-05 09:56:14,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:56:14,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:56:14,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:56:14,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:56:14,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:56:14,185 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-04-05 09:56:14,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:56:14,186 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1452258358] [2022-04-05 09:56:14,186 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1452258358] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:56:14,186 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:56:14,186 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:56:14,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55628380] [2022-04-05 09:56:14,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:56:14,186 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:56:14,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:56:14,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:56:14,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:56:14,187 INFO L87 Difference]: Start difference. First operand 602 states and 937 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:56:15,283 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:56:17,299 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:56:18,918 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 [] [2022-04-05 09:56:19,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:56:19,302 INFO L93 Difference]: Finished difference Result 1236 states and 1927 transitions. [2022-04-05 09:56:19,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:56:19,302 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 117 [2022-04-05 09:56:19,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:56:19,304 INFO L225 Difference]: With dead ends: 1236 [2022-04-05 09:56:19,304 INFO L226 Difference]: Without dead ends: 660 [2022-04-05 09:56:19,305 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:56:19,305 INFO L913 BasicCegarLoop]: 253 mSDtfsCounter, 38 mSDsluCounter, 372 mSDsCounter, 0 mSdLazyCounter, 472 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 625 SdHoareTripleChecker+Invalid, 483 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 472 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-04-05 09:56:19,306 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 625 Invalid, 483 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 472 Invalid, 1 Unknown, 0 Unchecked, 5.1s Time] [2022-04-05 09:56:19,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 660 states. [2022-04-05 09:56:19,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 660 to 626. [2022-04-05 09:56:19,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 626 states, 621 states have (on average 1.5636070853462158) internal successors, (971), 621 states have internal predecessors, (971), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:56:19,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 626 states to 626 states and 975 transitions. [2022-04-05 09:56:19,315 INFO L78 Accepts]: Start accepts. Automaton has 626 states and 975 transitions. Word has length 117 [2022-04-05 09:56:19,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:56:19,315 INFO L478 AbstractCegarLoop]: Abstraction has 626 states and 975 transitions. [2022-04-05 09:56:19,315 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:56:19,315 INFO L276 IsEmpty]: Start isEmpty. Operand 626 states and 975 transitions. [2022-04-05 09:56:19,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-04-05 09:56:19,316 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:56:19,316 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:56:19,317 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-04-05 09:56:19,317 INFO L403 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:56:19,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:56:19,317 INFO L85 PathProgramCache]: Analyzing trace with hash -2029915318, now seen corresponding path program 1 times [2022-04-05 09:56:19,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:56:19,317 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960673666] [2022-04-05 09:56:19,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:56:19,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:56:19,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:56:19,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:56:19,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:56:19,391 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2022-04-05 09:56:19,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:56:19,392 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960673666] [2022-04-05 09:56:19,392 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [960673666] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:56:19,392 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:56:19,392 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-05 09:56:19,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30963053] [2022-04-05 09:56:19,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:56:19,392 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-05 09:56:19,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:56:19,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-05 09:56:19,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 09:56:19,393 INFO L87 Difference]: Start difference. First operand 626 states and 975 transitions. Second operand has 4 states, 4 states have (on average 19.25) internal successors, (77), 3 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:56:21,411 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:56:21,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:56:21,657 INFO L93 Difference]: Finished difference Result 1228 states and 1923 transitions. [2022-04-05 09:56:21,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-05 09:56:21,658 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 3 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 122 [2022-04-05 09:56:21,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:56:21,659 INFO L225 Difference]: With dead ends: 1228 [2022-04-05 09:56:21,660 INFO L226 Difference]: Without dead ends: 628 [2022-04-05 09:56:21,661 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 09:56:21,661 INFO L913 BasicCegarLoop]: 217 mSDtfsCounter, 4 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 245 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 402 SdHoareTripleChecker+Invalid, 248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 245 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-04-05 09:56:21,661 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 402 Invalid, 248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 245 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2022-04-05 09:56:21,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 628 states. [2022-04-05 09:56:21,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 628 to 628. [2022-04-05 09:56:21,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 628 states, 623 states have (on average 1.5617977528089888) internal successors, (973), 623 states have internal predecessors, (973), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:56:21,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 628 states to 628 states and 977 transitions. [2022-04-05 09:56:21,670 INFO L78 Accepts]: Start accepts. Automaton has 628 states and 977 transitions. Word has length 122 [2022-04-05 09:56:21,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:56:21,670 INFO L478 AbstractCegarLoop]: Abstraction has 628 states and 977 transitions. [2022-04-05 09:56:21,670 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 3 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:56:21,671 INFO L276 IsEmpty]: Start isEmpty. Operand 628 states and 977 transitions. [2022-04-05 09:56:21,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-04-05 09:56:21,672 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:56:21,672 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:56:21,672 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-04-05 09:56:21,672 INFO L403 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:56:21,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:56:21,672 INFO L85 PathProgramCache]: Analyzing trace with hash 467142555, now seen corresponding path program 1 times [2022-04-05 09:56:21,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:56:21,672 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741773721] [2022-04-05 09:56:21,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:56:21,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:56:21,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:56:21,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:56:21,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:56:21,760 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-04-05 09:56:21,760 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:56:21,760 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741773721] [2022-04-05 09:56:21,761 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1741773721] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:56:21,761 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:56:21,761 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:56:21,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288255184] [2022-04-05 09:56:21,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:56:21,761 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:56:21,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:56:21,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:56:21,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:56:21,762 INFO L87 Difference]: Start difference. First operand 628 states and 977 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) [2022-04-05 09:56:24,189 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:56:26,212 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:56:27,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:56:27,396 INFO L93 Difference]: Finished difference Result 1372 states and 2119 transitions. [2022-04-05 09:56:27,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:56:27,397 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 123 [2022-04-05 09:56:27,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:56:27,399 INFO L225 Difference]: With dead ends: 1372 [2022-04-05 09:56:27,399 INFO L226 Difference]: Without dead ends: 772 [2022-04-05 09:56:27,400 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:56:27,400 INFO L913 BasicCegarLoop]: 200 mSDtfsCounter, 88 mSDsluCounter, 321 mSDsCounter, 0 mSdLazyCounter, 531 mSolverCounterSat, 12 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 521 SdHoareTripleChecker+Invalid, 545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 531 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-04-05 09:56:27,400 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [88 Valid, 521 Invalid, 545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 531 Invalid, 2 Unknown, 0 Unchecked, 5.6s Time] [2022-04-05 09:56:27,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 772 states. [2022-04-05 09:56:27,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 772 to 638. [2022-04-05 09:56:27,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 638 states, 633 states have (on average 1.565560821484992) internal successors, (991), 633 states have internal predecessors, (991), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:56:27,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 638 states to 638 states and 995 transitions. [2022-04-05 09:56:27,410 INFO L78 Accepts]: Start accepts. Automaton has 638 states and 995 transitions. Word has length 123 [2022-04-05 09:56:27,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:56:27,410 INFO L478 AbstractCegarLoop]: Abstraction has 638 states and 995 transitions. [2022-04-05 09:56:27,410 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) [2022-04-05 09:56:27,410 INFO L276 IsEmpty]: Start isEmpty. Operand 638 states and 995 transitions. [2022-04-05 09:56:27,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-04-05 09:56:27,411 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:56:27,412 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:56:27,412 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-04-05 09:56:27,412 INFO L403 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:56:27,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:56:27,412 INFO L85 PathProgramCache]: Analyzing trace with hash -1791142380, now seen corresponding path program 1 times [2022-04-05 09:56:27,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:56:27,412 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161426913] [2022-04-05 09:56:27,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:56:27,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:56:27,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:56:27,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:56:27,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:56:27,497 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-04-05 09:56:27,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:56:27,497 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161426913] [2022-04-05 09:56:27,497 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1161426913] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:56:27,497 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:56:27,497 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:56:27,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725212529] [2022-04-05 09:56:27,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:56:27,498 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:56:27,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:56:27,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:56:27,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:56:27,498 INFO L87 Difference]: Start difference. First operand 638 states and 995 transitions. Second operand has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:56:29,880 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:56:31,370 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:56:32,620 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:56:33,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:56:33,050 INFO L93 Difference]: Finished difference Result 1426 states and 2198 transitions. [2022-04-05 09:56:33,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:56:33,051 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 124 [2022-04-05 09:56:33,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:56:33,053 INFO L225 Difference]: With dead ends: 1426 [2022-04-05 09:56:33,053 INFO L226 Difference]: Without dead ends: 816 [2022-04-05 09:56:33,054 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:56:33,054 INFO L913 BasicCegarLoop]: 133 mSDtfsCounter, 128 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 492 mSolverCounterSat, 61 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 554 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 492 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-04-05 09:56:33,055 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [128 Valid, 380 Invalid, 554 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 492 Invalid, 1 Unknown, 0 Unchecked, 5.5s Time] [2022-04-05 09:56:33,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 816 states. [2022-04-05 09:56:33,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 816 to 638. [2022-04-05 09:56:33,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 638 states, 633 states have (on average 1.5592417061611374) internal successors, (987), 633 states have internal predecessors, (987), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:56:33,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 638 states to 638 states and 991 transitions. [2022-04-05 09:56:33,065 INFO L78 Accepts]: Start accepts. Automaton has 638 states and 991 transitions. Word has length 124 [2022-04-05 09:56:33,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:56:33,065 INFO L478 AbstractCegarLoop]: Abstraction has 638 states and 991 transitions. [2022-04-05 09:56:33,065 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:56:33,065 INFO L276 IsEmpty]: Start isEmpty. Operand 638 states and 991 transitions. [2022-04-05 09:56:33,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-04-05 09:56:33,067 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:56:33,067 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2022-04-05 09:56:33,067 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-04-05 09:56:33,067 INFO L403 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:56:33,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:56:33,067 INFO L85 PathProgramCache]: Analyzing trace with hash -1190647457, now seen corresponding path program 1 times [2022-04-05 09:56:33,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:56:33,067 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1239147470] [2022-04-05 09:56:33,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:56:33,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:56:33,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:56:33,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:56:33,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:56:33,174 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 105 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-04-05 09:56:33,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:56:33,175 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1239147470] [2022-04-05 09:56:33,175 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1239147470] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:56:33,175 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:56:33,175 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:56:33,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493061466] [2022-04-05 09:56:33,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:56:33,175 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:56:33,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:56:33,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:56:33,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:56:33,176 INFO L87 Difference]: Start difference. First operand 638 states and 991 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:56:36,239 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:56:38,263 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:56:38,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:56:38,693 INFO L93 Difference]: Finished difference Result 1424 states and 2188 transitions. [2022-04-05 09:56:38,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:56:38,693 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 131 [2022-04-05 09:56:38,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:56:38,696 INFO L225 Difference]: With dead ends: 1424 [2022-04-05 09:56:38,696 INFO L226 Difference]: Without dead ends: 814 [2022-04-05 09:56:38,697 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:56:38,697 INFO L913 BasicCegarLoop]: 131 mSDtfsCounter, 147 mSDsluCounter, 245 mSDsCounter, 0 mSdLazyCounter, 486 mSolverCounterSat, 60 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 376 SdHoareTripleChecker+Invalid, 548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 486 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-04-05 09:56:38,697 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [147 Valid, 376 Invalid, 548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 486 Invalid, 2 Unknown, 0 Unchecked, 5.5s Time] [2022-04-05 09:56:38,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 814 states. [2022-04-05 09:56:38,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 814 to 638. [2022-04-05 09:56:38,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 638 states, 633 states have (on average 1.5481832543443919) internal successors, (980), 633 states have internal predecessors, (980), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:56:38,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 638 states to 638 states and 984 transitions. [2022-04-05 09:56:38,709 INFO L78 Accepts]: Start accepts. Automaton has 638 states and 984 transitions. Word has length 131 [2022-04-05 09:56:38,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:56:38,709 INFO L478 AbstractCegarLoop]: Abstraction has 638 states and 984 transitions. [2022-04-05 09:56:38,709 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:56:38,709 INFO L276 IsEmpty]: Start isEmpty. Operand 638 states and 984 transitions. [2022-04-05 09:56:38,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-04-05 09:56:38,710 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:56:38,710 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:56:38,710 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-04-05 09:56:38,710 INFO L403 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:56:38,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:56:38,711 INFO L85 PathProgramCache]: Analyzing trace with hash -1305819021, now seen corresponding path program 1 times [2022-04-05 09:56:38,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:56:38,711 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446587809] [2022-04-05 09:56:38,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:56:38,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:56:38,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:56:38,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:56:38,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:56:38,796 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-04-05 09:56:38,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:56:38,796 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446587809] [2022-04-05 09:56:38,796 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [446587809] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:56:38,796 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:56:38,796 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:56:38,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496423530] [2022-04-05 09:56:38,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:56:38,796 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:56:38,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:56:38,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:56:38,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:56:38,797 INFO L87 Difference]: Start difference. First operand 638 states and 984 transitions. Second operand has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:56:40,243 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:56:41,965 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:56:43,985 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:56:44,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:56:44,428 INFO L93 Difference]: Finished difference Result 1504 states and 2308 transitions. [2022-04-05 09:56:44,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:56:44,428 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 131 [2022-04-05 09:56:44,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:56:44,431 INFO L225 Difference]: With dead ends: 1504 [2022-04-05 09:56:44,431 INFO L226 Difference]: Without dead ends: 894 [2022-04-05 09:56:44,432 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:56:44,432 INFO L913 BasicCegarLoop]: 134 mSDtfsCounter, 120 mSDsluCounter, 249 mSDsCounter, 0 mSdLazyCounter, 491 mSolverCounterSat, 59 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 383 SdHoareTripleChecker+Invalid, 551 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 491 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-04-05 09:56:44,432 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [120 Valid, 383 Invalid, 551 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 491 Invalid, 1 Unknown, 0 Unchecked, 5.6s Time] [2022-04-05 09:56:44,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 894 states. [2022-04-05 09:56:44,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 894 to 724. [2022-04-05 09:56:44,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 724 states, 719 states have (on average 1.5632823365785813) internal successors, (1124), 719 states have internal predecessors, (1124), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:56:44,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 724 states to 724 states and 1128 transitions. [2022-04-05 09:56:44,444 INFO L78 Accepts]: Start accepts. Automaton has 724 states and 1128 transitions. Word has length 131 [2022-04-05 09:56:44,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:56:44,444 INFO L478 AbstractCegarLoop]: Abstraction has 724 states and 1128 transitions. [2022-04-05 09:56:44,444 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:56:44,444 INFO L276 IsEmpty]: Start isEmpty. Operand 724 states and 1128 transitions. [2022-04-05 09:56:44,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-04-05 09:56:44,446 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:56:44,446 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:56:44,446 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-04-05 09:56:44,446 INFO L403 AbstractCegarLoop]: === Iteration 27 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:56:44,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:56:44,446 INFO L85 PathProgramCache]: Analyzing trace with hash 1116751295, now seen corresponding path program 1 times [2022-04-05 09:56:44,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:56:44,446 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900842856] [2022-04-05 09:56:44,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:56:44,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:56:44,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:56:44,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:56:44,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:56:44,557 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 81 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-04-05 09:56:44,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:56:44,558 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900842856] [2022-04-05 09:56:44,558 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [900842856] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:56:44,558 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:56:44,558 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:56:44,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178579519] [2022-04-05 09:56:44,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:56:44,558 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:56:44,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:56:44,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:56:44,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:56:44,559 INFO L87 Difference]: Start difference. First operand 724 states and 1128 transitions. Second operand has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:56:46,113 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:56:48,134 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:56:49,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:56:49,275 INFO L93 Difference]: Finished difference Result 1546 states and 2388 transitions. [2022-04-05 09:56:49,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:56:49,276 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 132 [2022-04-05 09:56:49,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:56:49,278 INFO L225 Difference]: With dead ends: 1546 [2022-04-05 09:56:49,278 INFO L226 Difference]: Without dead ends: 850 [2022-04-05 09:56:49,279 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:56:49,279 INFO L913 BasicCegarLoop]: 201 mSDtfsCounter, 106 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 529 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 521 SdHoareTripleChecker+Invalid, 541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 529 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-04-05 09:56:49,279 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [106 Valid, 521 Invalid, 541 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 529 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2022-04-05 09:56:49,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 850 states. [2022-04-05 09:56:49,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 850 to 724. [2022-04-05 09:56:49,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 724 states, 719 states have (on average 1.560500695410292) internal successors, (1122), 719 states have internal predecessors, (1122), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:56:49,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 724 states to 724 states and 1126 transitions. [2022-04-05 09:56:49,291 INFO L78 Accepts]: Start accepts. Automaton has 724 states and 1126 transitions. Word has length 132 [2022-04-05 09:56:49,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:56:49,291 INFO L478 AbstractCegarLoop]: Abstraction has 724 states and 1126 transitions. [2022-04-05 09:56:49,291 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:56:49,291 INFO L276 IsEmpty]: Start isEmpty. Operand 724 states and 1126 transitions. [2022-04-05 09:56:49,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-04-05 09:56:49,292 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:56:49,293 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:56:49,293 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-04-05 09:56:49,293 INFO L403 AbstractCegarLoop]: === Iteration 28 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:56:49,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:56:49,293 INFO L85 PathProgramCache]: Analyzing trace with hash 1369921516, now seen corresponding path program 1 times [2022-04-05 09:56:49,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:56:49,293 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862736655] [2022-04-05 09:56:49,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:56:49,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:56:49,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:56:49,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:56:49,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:56:49,412 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-04-05 09:56:49,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:56:49,412 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [862736655] [2022-04-05 09:56:49,412 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [862736655] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:56:49,412 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:56:49,412 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:56:49,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586191182] [2022-04-05 09:56:49,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:56:49,412 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:56:49,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:56:49,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:56:49,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:56:49,413 INFO L87 Difference]: Start difference. First operand 724 states and 1126 transitions. Second operand has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:56:50,953 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:56:52,558 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:56:54,453 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 [] [2022-04-05 09:56:55,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:56:55,419 INFO L93 Difference]: Finished difference Result 1534 states and 2369 transitions. [2022-04-05 09:56:55,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:56:55,419 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 132 [2022-04-05 09:56:55,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:56:55,422 INFO L225 Difference]: With dead ends: 1534 [2022-04-05 09:56:55,422 INFO L226 Difference]: Without dead ends: 838 [2022-04-05 09:56:55,423 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:56:55,423 INFO L913 BasicCegarLoop]: 204 mSDtfsCounter, 69 mSDsluCounter, 325 mSDsCounter, 0 mSdLazyCounter, 522 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 529 SdHoareTripleChecker+Invalid, 534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 522 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-04-05 09:56:55,423 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [69 Valid, 529 Invalid, 534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 522 Invalid, 0 Unknown, 0 Unchecked, 6.0s Time] [2022-04-05 09:56:55,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 838 states. [2022-04-05 09:56:55,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 838 to 732. [2022-04-05 09:56:55,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 732 states, 727 states have (on average 1.5543328748280605) internal successors, (1130), 727 states have internal predecessors, (1130), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:56:55,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 732 states to 732 states and 1134 transitions. [2022-04-05 09:56:55,435 INFO L78 Accepts]: Start accepts. Automaton has 732 states and 1134 transitions. Word has length 132 [2022-04-05 09:56:55,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:56:55,435 INFO L478 AbstractCegarLoop]: Abstraction has 732 states and 1134 transitions. [2022-04-05 09:56:55,436 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:56:55,436 INFO L276 IsEmpty]: Start isEmpty. Operand 732 states and 1134 transitions. [2022-04-05 09:56:55,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-04-05 09:56:55,437 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:56:55,437 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:56:55,437 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-04-05 09:56:55,437 INFO L403 AbstractCegarLoop]: === Iteration 29 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:56:55,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:56:55,437 INFO L85 PathProgramCache]: Analyzing trace with hash -1970297826, now seen corresponding path program 1 times [2022-04-05 09:56:55,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:56:55,437 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543429038] [2022-04-05 09:56:55,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:56:55,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:56:55,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:56:55,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:56:55,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:56:55,525 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 81 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-04-05 09:56:55,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:56:55,525 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543429038] [2022-04-05 09:56:55,525 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1543429038] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:56:55,525 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:56:55,525 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:56:55,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609952885] [2022-04-05 09:56:55,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:56:55,527 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:56:55,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:56:55,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:56:55,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:56:55,527 INFO L87 Difference]: Start difference. First operand 732 states and 1134 transitions. Second operand has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:56:56,584 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 [] [2022-04-05 09:56:58,601 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:57:00,612 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:57:02,640 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:57:03,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:57:03,019 INFO L93 Difference]: Finished difference Result 1469 states and 2279 transitions. [2022-04-05 09:57:03,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:57:03,019 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 132 [2022-04-05 09:57:03,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:57:03,021 INFO L225 Difference]: With dead ends: 1469 [2022-04-05 09:57:03,021 INFO L226 Difference]: Without dead ends: 765 [2022-04-05 09:57:03,022 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:57:03,022 INFO L913 BasicCegarLoop]: 252 mSDtfsCounter, 48 mSDsluCounter, 371 mSDsCounter, 0 mSdLazyCounter, 463 mSolverCounterSat, 10 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 623 SdHoareTripleChecker+Invalid, 475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 463 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2022-04-05 09:57:03,023 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [48 Valid, 623 Invalid, 475 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 463 Invalid, 2 Unknown, 0 Unchecked, 7.5s Time] [2022-04-05 09:57:03,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 765 states. [2022-04-05 09:57:03,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 765 to 732. [2022-04-05 09:57:03,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 732 states, 727 states have (on average 1.5529573590096286) internal successors, (1129), 727 states have internal predecessors, (1129), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:57:03,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 732 states to 732 states and 1133 transitions. [2022-04-05 09:57:03,033 INFO L78 Accepts]: Start accepts. Automaton has 732 states and 1133 transitions. Word has length 132 [2022-04-05 09:57:03,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:57:03,033 INFO L478 AbstractCegarLoop]: Abstraction has 732 states and 1133 transitions. [2022-04-05 09:57:03,033 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:57:03,033 INFO L276 IsEmpty]: Start isEmpty. Operand 732 states and 1133 transitions. [2022-04-05 09:57:03,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-04-05 09:57:03,034 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:57:03,034 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:57:03,034 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-04-05 09:57:03,035 INFO L403 AbstractCegarLoop]: === Iteration 30 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:57:03,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:57:03,035 INFO L85 PathProgramCache]: Analyzing trace with hash 963957175, now seen corresponding path program 1 times [2022-04-05 09:57:03,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:57:03,035 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076050496] [2022-04-05 09:57:03,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:57:03,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:57:03,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:57:03,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:57:03,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:57:03,119 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 93 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-04-05 09:57:03,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:57:03,119 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076050496] [2022-04-05 09:57:03,119 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1076050496] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:57:03,120 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:57:03,120 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:57:03,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953677306] [2022-04-05 09:57:03,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:57:03,120 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:57:03,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:57:03,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:57:03,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:57:03,120 INFO L87 Difference]: Start difference. First operand 732 states and 1133 transitions. Second operand has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:57:05,135 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:57:05,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:57:05,564 INFO L93 Difference]: Finished difference Result 1612 states and 2472 transitions. [2022-04-05 09:57:05,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:57:05,565 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 135 [2022-04-05 09:57:05,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:57:05,567 INFO L225 Difference]: With dead ends: 1612 [2022-04-05 09:57:05,567 INFO L226 Difference]: Without dead ends: 908 [2022-04-05 09:57:05,568 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:57:05,569 INFO L913 BasicCegarLoop]: 135 mSDtfsCounter, 149 mSDsluCounter, 249 mSDsCounter, 0 mSdLazyCounter, 488 mSolverCounterSat, 60 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 549 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 488 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-05 09:57:05,569 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [149 Valid, 384 Invalid, 549 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 488 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-04-05 09:57:05,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 908 states. [2022-04-05 09:57:05,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 908 to 732. [2022-04-05 09:57:05,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 732 states, 727 states have (on average 1.5378266850068776) internal successors, (1118), 727 states have internal predecessors, (1118), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:57:05,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 732 states to 732 states and 1122 transitions. [2022-04-05 09:57:05,580 INFO L78 Accepts]: Start accepts. Automaton has 732 states and 1122 transitions. Word has length 135 [2022-04-05 09:57:05,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:57:05,581 INFO L478 AbstractCegarLoop]: Abstraction has 732 states and 1122 transitions. [2022-04-05 09:57:05,581 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:57:05,581 INFO L276 IsEmpty]: Start isEmpty. Operand 732 states and 1122 transitions. [2022-04-05 09:57:05,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2022-04-05 09:57:05,582 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:57:05,582 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:57:05,582 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-04-05 09:57:05,582 INFO L403 AbstractCegarLoop]: === Iteration 31 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:57:05,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:57:05,582 INFO L85 PathProgramCache]: Analyzing trace with hash -81620505, now seen corresponding path program 1 times [2022-04-05 09:57:05,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:57:05,583 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629901516] [2022-04-05 09:57:05,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:57:05,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:57:05,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:57:05,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:57:05,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:57:05,674 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 122 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-04-05 09:57:05,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:57:05,674 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629901516] [2022-04-05 09:57:05,674 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [629901516] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:57:05,674 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:57:05,675 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:57:05,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154142223] [2022-04-05 09:57:05,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:57:05,675 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:57:05,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:57:05,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:57:05,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:57:05,675 INFO L87 Difference]: Start difference. First operand 732 states and 1122 transitions. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:57:07,682 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:57:08,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:57:08,141 INFO L93 Difference]: Finished difference Result 1612 states and 2450 transitions. [2022-04-05 09:57:08,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:57:08,141 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 139 [2022-04-05 09:57:08,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:57:08,143 INFO L225 Difference]: With dead ends: 1612 [2022-04-05 09:57:08,143 INFO L226 Difference]: Without dead ends: 908 [2022-04-05 09:57:08,144 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:57:08,145 INFO L913 BasicCegarLoop]: 142 mSDtfsCounter, 139 mSDsluCounter, 256 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 57 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 398 SdHoareTripleChecker+Invalid, 555 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-05 09:57:08,145 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [139 Valid, 398 Invalid, 555 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 497 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-04-05 09:57:08,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 908 states. [2022-04-05 09:57:08,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 908 to 732. [2022-04-05 09:57:08,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 732 states, 727 states have (on average 1.5268225584594224) internal successors, (1110), 727 states have internal predecessors, (1110), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:57:08,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 732 states to 732 states and 1114 transitions. [2022-04-05 09:57:08,157 INFO L78 Accepts]: Start accepts. Automaton has 732 states and 1114 transitions. Word has length 139 [2022-04-05 09:57:08,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:57:08,157 INFO L478 AbstractCegarLoop]: Abstraction has 732 states and 1114 transitions. [2022-04-05 09:57:08,157 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:57:08,157 INFO L276 IsEmpty]: Start isEmpty. Operand 732 states and 1114 transitions. [2022-04-05 09:57:08,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2022-04-05 09:57:08,158 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:57:08,159 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:57:08,159 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-04-05 09:57:08,159 INFO L403 AbstractCegarLoop]: === Iteration 32 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:57:08,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:57:08,159 INFO L85 PathProgramCache]: Analyzing trace with hash -1051911512, now seen corresponding path program 1 times [2022-04-05 09:57:08,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:57:08,159 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [827030503] [2022-04-05 09:57:08,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:57:08,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:57:08,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:57:08,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:57:08,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:57:08,267 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 115 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-04-05 09:57:08,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:57:08,267 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [827030503] [2022-04-05 09:57:08,267 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [827030503] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:57:08,268 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:57:08,268 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:57:08,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153650942] [2022-04-05 09:57:08,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:57:08,268 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:57:08,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:57:08,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:57:08,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:57:08,269 INFO L87 Difference]: Start difference. First operand 732 states and 1114 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) [2022-04-05 09:57:11,356 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:57:13,381 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:57:13,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:57:13,781 INFO L93 Difference]: Finished difference Result 1554 states and 2360 transitions. [2022-04-05 09:57:13,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:57:13,781 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 139 [2022-04-05 09:57:13,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:57:13,783 INFO L225 Difference]: With dead ends: 1554 [2022-04-05 09:57:13,783 INFO L226 Difference]: Without dead ends: 850 [2022-04-05 09:57:13,784 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:57:13,785 INFO L913 BasicCegarLoop]: 252 mSDtfsCounter, 38 mSDsluCounter, 371 mSDsCounter, 0 mSdLazyCounter, 480 mSolverCounterSat, 10 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 623 SdHoareTripleChecker+Invalid, 492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 480 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-04-05 09:57:13,785 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 623 Invalid, 492 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 480 Invalid, 2 Unknown, 0 Unchecked, 5.5s Time] [2022-04-05 09:57:13,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 850 states. [2022-04-05 09:57:13,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 850 to 784. [2022-04-05 09:57:13,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 784 states, 779 states have (on average 1.5250320924261873) internal successors, (1188), 779 states have internal predecessors, (1188), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:57:13,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 784 states to 784 states and 1192 transitions. [2022-04-05 09:57:13,798 INFO L78 Accepts]: Start accepts. Automaton has 784 states and 1192 transitions. Word has length 139 [2022-04-05 09:57:13,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:57:13,798 INFO L478 AbstractCegarLoop]: Abstraction has 784 states and 1192 transitions. [2022-04-05 09:57:13,798 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) [2022-04-05 09:57:13,798 INFO L276 IsEmpty]: Start isEmpty. Operand 784 states and 1192 transitions. [2022-04-05 09:57:13,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-04-05 09:57:13,799 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:57:13,800 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:57:13,800 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-04-05 09:57:13,800 INFO L403 AbstractCegarLoop]: === Iteration 33 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:57:13,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:57:13,800 INFO L85 PathProgramCache]: Analyzing trace with hash -30045473, now seen corresponding path program 1 times [2022-04-05 09:57:13,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:57:13,800 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013310964] [2022-04-05 09:57:13,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:57:13,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:57:13,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:57:13,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:57:13,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:57:13,886 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 130 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-04-05 09:57:13,886 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:57:13,886 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013310964] [2022-04-05 09:57:13,886 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1013310964] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:57:13,886 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:57:13,886 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:57:13,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54388663] [2022-04-05 09:57:13,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:57:13,887 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:57:13,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:57:13,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:57:13,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:57:13,887 INFO L87 Difference]: Start difference. First operand 784 states and 1192 transitions. Second operand has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:57:15,694 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:57:17,719 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:57:19,742 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:57:20,804 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:57:21,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:57:21,224 INFO L93 Difference]: Finished difference Result 1626 states and 2465 transitions. [2022-04-05 09:57:21,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:57:21,224 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 142 [2022-04-05 09:57:21,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:57:21,226 INFO L225 Difference]: With dead ends: 1626 [2022-04-05 09:57:21,226 INFO L226 Difference]: Without dead ends: 870 [2022-04-05 09:57:21,227 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:57:21,228 INFO L913 BasicCegarLoop]: 210 mSDtfsCounter, 78 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 520 mSolverCounterSat, 12 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 541 SdHoareTripleChecker+Invalid, 534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 520 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2022-04-05 09:57:21,228 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [78 Valid, 541 Invalid, 534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 520 Invalid, 2 Unknown, 0 Unchecked, 7.3s Time] [2022-04-05 09:57:21,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 870 states. [2022-04-05 09:57:21,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 870 to 784. [2022-04-05 09:57:21,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 784 states, 779 states have (on average 1.5224646983311938) internal successors, (1186), 779 states have internal predecessors, (1186), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:57:21,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 784 states to 784 states and 1190 transitions. [2022-04-05 09:57:21,239 INFO L78 Accepts]: Start accepts. Automaton has 784 states and 1190 transitions. Word has length 142 [2022-04-05 09:57:21,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:57:21,239 INFO L478 AbstractCegarLoop]: Abstraction has 784 states and 1190 transitions. [2022-04-05 09:57:21,239 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:57:21,239 INFO L276 IsEmpty]: Start isEmpty. Operand 784 states and 1190 transitions. [2022-04-05 09:57:21,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-04-05 09:57:21,241 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:57:21,241 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:57:21,241 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-04-05 09:57:21,241 INFO L403 AbstractCegarLoop]: === Iteration 34 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:57:21,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:57:21,241 INFO L85 PathProgramCache]: Analyzing trace with hash 1238333083, now seen corresponding path program 1 times [2022-04-05 09:57:21,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:57:21,241 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585741531] [2022-04-05 09:57:21,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:57:21,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:57:21,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:57:21,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:57:21,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:57:21,335 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-04-05 09:57:21,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:57:21,335 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585741531] [2022-04-05 09:57:21,336 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1585741531] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:57:21,336 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:57:21,336 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:57:21,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123005138] [2022-04-05 09:57:21,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:57:21,336 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:57:21,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:57:21,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:57:21,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:57:21,337 INFO L87 Difference]: Start difference. First operand 784 states and 1190 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) [2022-04-05 09:57:22,353 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:57:24,371 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:57:25,455 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:57:26,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:57:26,517 INFO L93 Difference]: Finished difference Result 1716 states and 2586 transitions. [2022-04-05 09:57:26,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:57:26,517 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 [2022-04-05 09:57:26,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:57:26,520 INFO L225 Difference]: With dead ends: 1716 [2022-04-05 09:57:26,520 INFO L226 Difference]: Without dead ends: 960 [2022-04-05 09:57:26,521 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:57:26,521 INFO L913 BasicCegarLoop]: 135 mSDtfsCounter, 134 mSDsluCounter, 249 mSDsCounter, 0 mSdLazyCounter, 491 mSolverCounterSat, 60 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 491 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-04-05 09:57:26,522 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [134 Valid, 384 Invalid, 552 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 491 Invalid, 1 Unknown, 0 Unchecked, 5.2s Time] [2022-04-05 09:57:26,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 960 states. [2022-04-05 09:57:26,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 960 to 784. [2022-04-05 09:57:26,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 784 states, 779 states have (on average 1.5121951219512195) internal successors, (1178), 779 states have internal predecessors, (1178), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:57:26,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 784 states to 784 states and 1182 transitions. [2022-04-05 09:57:26,534 INFO L78 Accepts]: Start accepts. Automaton has 784 states and 1182 transitions. Word has length 143 [2022-04-05 09:57:26,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:57:26,535 INFO L478 AbstractCegarLoop]: Abstraction has 784 states and 1182 transitions. [2022-04-05 09:57:26,535 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) [2022-04-05 09:57:26,535 INFO L276 IsEmpty]: Start isEmpty. Operand 784 states and 1182 transitions. [2022-04-05 09:57:26,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-04-05 09:57:26,536 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:57:26,536 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:57:26,536 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-04-05 09:57:26,536 INFO L403 AbstractCegarLoop]: === Iteration 35 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:57:26,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:57:26,537 INFO L85 PathProgramCache]: Analyzing trace with hash -1434976918, now seen corresponding path program 1 times [2022-04-05 09:57:26,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:57:26,537 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793701783] [2022-04-05 09:57:26,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:57:26,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:57:26,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:57:26,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:57:26,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:57:26,646 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 102 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-04-05 09:57:26,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:57:26,646 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793701783] [2022-04-05 09:57:26,646 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1793701783] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:57:26,646 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:57:26,646 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:57:26,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1225567998] [2022-04-05 09:57:26,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:57:26,646 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:57:26,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:57:26,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:57:26,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:57:26,647 INFO L87 Difference]: Start difference. First operand 784 states and 1182 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) [2022-04-05 09:57:29,796 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:57:31,820 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:57:32,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:57:32,229 INFO L93 Difference]: Finished difference Result 1285 states and 1936 transitions. [2022-04-05 09:57:32,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:57:32,229 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 [2022-04-05 09:57:32,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:57:32,231 INFO L225 Difference]: With dead ends: 1285 [2022-04-05 09:57:32,231 INFO L226 Difference]: Without dead ends: 529 [2022-04-05 09:57:32,232 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:57:32,232 INFO L913 BasicCegarLoop]: 135 mSDtfsCounter, 151 mSDsluCounter, 249 mSDsCounter, 0 mSdLazyCounter, 487 mSolverCounterSat, 59 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 487 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-04-05 09:57:32,232 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [151 Valid, 384 Invalid, 548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 487 Invalid, 2 Unknown, 0 Unchecked, 5.6s Time] [2022-04-05 09:57:32,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 529 states. [2022-04-05 09:57:32,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 529 to 448. [2022-04-05 09:57:32,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 448 states, 443 states have (on average 1.4830699774266365) internal successors, (657), 443 states have internal predecessors, (657), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:57:32,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 448 states to 448 states and 661 transitions. [2022-04-05 09:57:32,239 INFO L78 Accepts]: Start accepts. Automaton has 448 states and 661 transitions. Word has length 144 [2022-04-05 09:57:32,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:57:32,239 INFO L478 AbstractCegarLoop]: Abstraction has 448 states and 661 transitions. [2022-04-05 09:57:32,239 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) [2022-04-05 09:57:32,239 INFO L276 IsEmpty]: Start isEmpty. Operand 448 states and 661 transitions. [2022-04-05 09:57:32,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-04-05 09:57:32,240 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:57:32,240 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:57:32,240 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-04-05 09:57:32,240 INFO L403 AbstractCegarLoop]: === Iteration 36 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:57:32,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:57:32,241 INFO L85 PathProgramCache]: Analyzing trace with hash -1789601228, now seen corresponding path program 1 times [2022-04-05 09:57:32,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:57:32,241 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443277934] [2022-04-05 09:57:32,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:57:32,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:57:32,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:57:32,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:57:32,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:57:32,329 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 134 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-04-05 09:57:32,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:57:32,329 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1443277934] [2022-04-05 09:57:32,329 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1443277934] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:57:32,329 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:57:32,330 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:57:32,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433166569] [2022-04-05 09:57:32,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:57:32,330 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:57:32,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:57:32,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:57:32,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:57:32,330 INFO L87 Difference]: Start difference. First operand 448 states and 661 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) [2022-04-05 09:57:33,451 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:57:35,468 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:57:37,489 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:57:38,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:57:38,858 INFO L93 Difference]: Finished difference Result 992 states and 1474 transitions. [2022-04-05 09:57:38,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:57:38,859 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 [2022-04-05 09:57:38,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:57:38,860 INFO L225 Difference]: With dead ends: 992 [2022-04-05 09:57:38,860 INFO L226 Difference]: Without dead ends: 572 [2022-04-05 09:57:38,861 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:57:38,861 INFO L913 BasicCegarLoop]: 135 mSDtfsCounter, 131 mSDsluCounter, 249 mSDsCounter, 0 mSdLazyCounter, 490 mSolverCounterSat, 53 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 490 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2022-04-05 09:57:38,861 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [131 Valid, 384 Invalid, 545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 490 Invalid, 2 Unknown, 0 Unchecked, 6.5s Time] [2022-04-05 09:57:38,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 572 states. [2022-04-05 09:57:38,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 572 to 478. [2022-04-05 09:57:38,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 478 states, 473 states have (on average 1.477801268498943) internal successors, (699), 473 states have internal predecessors, (699), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:57:38,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 478 states to 478 states and 703 transitions. [2022-04-05 09:57:38,868 INFO L78 Accepts]: Start accepts. Automaton has 478 states and 703 transitions. Word has length 144 [2022-04-05 09:57:38,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:57:38,868 INFO L478 AbstractCegarLoop]: Abstraction has 478 states and 703 transitions. [2022-04-05 09:57:38,868 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) [2022-04-05 09:57:38,868 INFO L276 IsEmpty]: Start isEmpty. Operand 478 states and 703 transitions. [2022-04-05 09:57:38,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-04-05 09:57:38,869 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:57:38,869 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:57:38,869 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-04-05 09:57:38,870 INFO L403 AbstractCegarLoop]: === Iteration 37 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:57:38,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:57:38,870 INFO L85 PathProgramCache]: Analyzing trace with hash -1236073746, now seen corresponding path program 1 times [2022-04-05 09:57:38,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:57:38,870 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403128190] [2022-04-05 09:57:38,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:57:38,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:57:38,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:57:38,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:57:38,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:57:38,954 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 126 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-04-05 09:57:38,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:57:38,954 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403128190] [2022-04-05 09:57:38,954 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [403128190] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:57:38,954 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:57:38,954 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:57:38,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347880081] [2022-04-05 09:57:38,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:57:38,955 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:57:38,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:57:38,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:57:38,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:57:38,955 INFO L87 Difference]: Start difference. First operand 478 states and 703 transitions. Second operand has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:57:40,407 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:57:42,428 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:57:44,454 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:57:46,475 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:57:46,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:57:46,846 INFO L93 Difference]: Finished difference Result 955 states and 1411 transitions. [2022-04-05 09:57:46,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:57:46,846 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 145 [2022-04-05 09:57:46,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:57:46,847 INFO L225 Difference]: With dead ends: 955 [2022-04-05 09:57:46,848 INFO L226 Difference]: Without dead ends: 505 [2022-04-05 09:57:46,848 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:57:46,848 INFO L913 BasicCegarLoop]: 213 mSDtfsCounter, 61 mSDsluCounter, 334 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 7 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 547 SdHoareTripleChecker+Invalid, 483 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2022-04-05 09:57:46,849 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [61 Valid, 547 Invalid, 483 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 473 Invalid, 3 Unknown, 0 Unchecked, 7.9s Time] [2022-04-05 09:57:46,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 505 states. [2022-04-05 09:57:46,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 505 to 478. [2022-04-05 09:57:46,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 478 states, 473 states have (on average 1.4756871035940804) internal successors, (698), 473 states have internal predecessors, (698), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:57:46,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 478 states to 478 states and 702 transitions. [2022-04-05 09:57:46,855 INFO L78 Accepts]: Start accepts. Automaton has 478 states and 702 transitions. Word has length 145 [2022-04-05 09:57:46,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:57:46,856 INFO L478 AbstractCegarLoop]: Abstraction has 478 states and 702 transitions. [2022-04-05 09:57:46,856 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:57:46,856 INFO L276 IsEmpty]: Start isEmpty. Operand 478 states and 702 transitions. [2022-04-05 09:57:46,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-04-05 09:57:46,857 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:57:46,857 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:57:46,857 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-04-05 09:57:46,857 INFO L403 AbstractCegarLoop]: === Iteration 38 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:57:46,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:57:46,857 INFO L85 PathProgramCache]: Analyzing trace with hash 2083258222, now seen corresponding path program 1 times [2022-04-05 09:57:46,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:57:46,857 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21901287] [2022-04-05 09:57:46,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:57:46,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:57:46,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:57:46,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:57:46,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:57:46,958 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 136 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-04-05 09:57:46,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:57:46,958 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21901287] [2022-04-05 09:57:46,958 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [21901287] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:57:46,958 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:57:46,958 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:57:46,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414797722] [2022-04-05 09:57:46,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:57:46,959 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:57:46,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:57:46,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:57:46,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:57:46,959 INFO L87 Difference]: Start difference. First operand 478 states and 702 transitions. Second operand has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:57:49,353 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:57:51,379 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:57:53,400 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:57:53,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:57:53,814 INFO L93 Difference]: Finished difference Result 1009 states and 1488 transitions. [2022-04-05 09:57:53,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:57:53,814 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 145 [2022-04-05 09:57:53,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:57:53,816 INFO L225 Difference]: With dead ends: 1009 [2022-04-05 09:57:53,816 INFO L226 Difference]: Without dead ends: 559 [2022-04-05 09:57:53,816 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:57:53,817 INFO L913 BasicCegarLoop]: 135 mSDtfsCounter, 130 mSDsluCounter, 249 mSDsCounter, 0 mSdLazyCounter, 486 mSolverCounterSat, 59 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 486 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2022-04-05 09:57:53,817 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [130 Valid, 384 Invalid, 548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 486 Invalid, 3 Unknown, 0 Unchecked, 6.8s Time] [2022-04-05 09:57:53,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 559 states. [2022-04-05 09:57:53,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 559 to 478. [2022-04-05 09:57:53,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 478 states, 473 states have (on average 1.46723044397463) internal successors, (694), 473 states have internal predecessors, (694), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:57:53,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 478 states to 478 states and 698 transitions. [2022-04-05 09:57:53,824 INFO L78 Accepts]: Start accepts. Automaton has 478 states and 698 transitions. Word has length 145 [2022-04-05 09:57:53,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:57:53,824 INFO L478 AbstractCegarLoop]: Abstraction has 478 states and 698 transitions. [2022-04-05 09:57:53,824 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:57:53,824 INFO L276 IsEmpty]: Start isEmpty. Operand 478 states and 698 transitions. [2022-04-05 09:57:53,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-04-05 09:57:53,825 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:57:53,825 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:57:53,825 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-04-05 09:57:53,825 INFO L403 AbstractCegarLoop]: === Iteration 39 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:57:53,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:57:53,825 INFO L85 PathProgramCache]: Analyzing trace with hash -932365580, now seen corresponding path program 1 times [2022-04-05 09:57:53,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:57:53,825 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974132217] [2022-04-05 09:57:53,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:57:53,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:57:53,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:57:53,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:57:53,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:57:53,930 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 128 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-04-05 09:57:53,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:57:53,930 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [974132217] [2022-04-05 09:57:53,930 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [974132217] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:57:53,930 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:57:53,930 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:57:53,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873129536] [2022-04-05 09:57:53,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:57:53,930 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:57:53,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:57:53,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:57:53,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:57:53,931 INFO L87 Difference]: Start difference. First operand 478 states and 698 transitions. Second operand has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:57:55,117 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:57:57,886 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:57:59,909 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:58:00,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:58:00,280 INFO L93 Difference]: Finished difference Result 951 states and 1396 transitions. [2022-04-05 09:58:00,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:58:00,280 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 146 [2022-04-05 09:58:00,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:58:00,281 INFO L225 Difference]: With dead ends: 951 [2022-04-05 09:58:00,282 INFO L226 Difference]: Without dead ends: 501 [2022-04-05 09:58:00,282 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:58:00,282 INFO L913 BasicCegarLoop]: 217 mSDtfsCounter, 56 mSDsluCounter, 338 mSDsCounter, 0 mSdLazyCounter, 466 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 555 SdHoareTripleChecker+Invalid, 475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 466 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-04-05 09:58:00,283 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [56 Valid, 555 Invalid, 475 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 466 Invalid, 2 Unknown, 0 Unchecked, 6.3s Time] [2022-04-05 09:58:00,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 501 states. [2022-04-05 09:58:00,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 501 to 478. [2022-04-05 09:58:00,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 478 states, 473 states have (on average 1.4651162790697674) internal successors, (693), 473 states have internal predecessors, (693), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:58:00,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 478 states to 478 states and 697 transitions. [2022-04-05 09:58:00,289 INFO L78 Accepts]: Start accepts. Automaton has 478 states and 697 transitions. Word has length 146 [2022-04-05 09:58:00,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:58:00,290 INFO L478 AbstractCegarLoop]: Abstraction has 478 states and 697 transitions. [2022-04-05 09:58:00,290 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:58:00,290 INFO L276 IsEmpty]: Start isEmpty. Operand 478 states and 697 transitions. [2022-04-05 09:58:00,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-04-05 09:58:00,291 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:58:00,291 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:58:00,291 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-04-05 09:58:00,291 INFO L403 AbstractCegarLoop]: === Iteration 40 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:58:00,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:58:00,291 INFO L85 PathProgramCache]: Analyzing trace with hash 423911587, now seen corresponding path program 1 times [2022-04-05 09:58:00,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:58:00,291 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788525331] [2022-04-05 09:58:00,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:58:00,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:58:00,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:58:00,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:58:00,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:58:00,380 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 139 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-04-05 09:58:00,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:58:00,381 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [788525331] [2022-04-05 09:58:00,381 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [788525331] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:58:00,381 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:58:00,381 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:58:00,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596142133] [2022-04-05 09:58:00,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:58:00,381 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:58:00,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:58:00,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:58:00,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:58:00,382 INFO L87 Difference]: Start difference. First operand 478 states and 697 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) [2022-04-05 09:58:02,333 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:58:04,422 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:58:04,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:58:04,772 INFO L93 Difference]: Finished difference Result 951 states and 1394 transitions. [2022-04-05 09:58:04,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:58:04,773 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 149 [2022-04-05 09:58:04,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:58:04,774 INFO L225 Difference]: With dead ends: 951 [2022-04-05 09:58:04,774 INFO L226 Difference]: Without dead ends: 501 [2022-04-05 09:58:04,775 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:58:04,775 INFO L913 BasicCegarLoop]: 217 mSDtfsCounter, 49 mSDsluCounter, 338 mSDsCounter, 0 mSdLazyCounter, 468 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 555 SdHoareTripleChecker+Invalid, 475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 468 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-04-05 09:58:04,775 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [49 Valid, 555 Invalid, 475 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 468 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2022-04-05 09:58:04,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 501 states. [2022-04-05 09:58:04,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 501 to 478. [2022-04-05 09:58:04,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 478 states, 473 states have (on average 1.4630021141649048) internal successors, (692), 473 states have internal predecessors, (692), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:58:04,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 478 states to 478 states and 696 transitions. [2022-04-05 09:58:04,782 INFO L78 Accepts]: Start accepts. Automaton has 478 states and 696 transitions. Word has length 149 [2022-04-05 09:58:04,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:58:04,782 INFO L478 AbstractCegarLoop]: Abstraction has 478 states and 696 transitions. [2022-04-05 09:58:04,782 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) [2022-04-05 09:58:04,782 INFO L276 IsEmpty]: Start isEmpty. Operand 478 states and 696 transitions. [2022-04-05 09:58:04,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2022-04-05 09:58:04,783 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:58:04,783 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:58:04,784 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-04-05 09:58:04,784 INFO L403 AbstractCegarLoop]: === Iteration 41 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:58:04,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:58:04,784 INFO L85 PathProgramCache]: Analyzing trace with hash -1331112290, now seen corresponding path program 1 times [2022-04-05 09:58:04,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:58:04,784 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991869214] [2022-04-05 09:58:04,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:58:04,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:58:04,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:58:04,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:58:04,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:58:04,897 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 140 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-04-05 09:58:04,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:58:04,897 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1991869214] [2022-04-05 09:58:04,897 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1991869214] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:58:04,897 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:58:04,897 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:58:04,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404770393] [2022-04-05 09:58:04,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:58:04,898 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:58:04,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:58:04,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:58:04,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:58:04,900 INFO L87 Difference]: Start difference. First operand 478 states and 696 transitions. Second operand has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:58:07,853 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:58:09,172 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 [] [2022-04-05 09:58:09,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:58:09,586 INFO L93 Difference]: Finished difference Result 1009 states and 1476 transitions. [2022-04-05 09:58:09,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:58:09,586 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 150 [2022-04-05 09:58:09,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:58:09,588 INFO L225 Difference]: With dead ends: 1009 [2022-04-05 09:58:09,588 INFO L226 Difference]: Without dead ends: 559 [2022-04-05 09:58:09,589 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:58:09,589 INFO L913 BasicCegarLoop]: 135 mSDtfsCounter, 126 mSDsluCounter, 249 mSDsCounter, 0 mSdLazyCounter, 488 mSolverCounterSat, 59 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 488 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-04-05 09:58:09,589 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [126 Valid, 384 Invalid, 548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 488 Invalid, 1 Unknown, 0 Unchecked, 4.7s Time] [2022-04-05 09:58:09,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 559 states. [2022-04-05 09:58:09,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 559 to 478. [2022-04-05 09:58:09,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 478 states, 473 states have (on average 1.4545454545454546) internal successors, (688), 473 states have internal predecessors, (688), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:58:09,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 478 states to 478 states and 692 transitions. [2022-04-05 09:58:09,596 INFO L78 Accepts]: Start accepts. Automaton has 478 states and 692 transitions. Word has length 150 [2022-04-05 09:58:09,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:58:09,596 INFO L478 AbstractCegarLoop]: Abstraction has 478 states and 692 transitions. [2022-04-05 09:58:09,596 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:58:09,596 INFO L276 IsEmpty]: Start isEmpty. Operand 478 states and 692 transitions. [2022-04-05 09:58:09,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2022-04-05 09:58:09,597 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:58:09,597 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:58:09,597 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-04-05 09:58:09,598 INFO L403 AbstractCegarLoop]: === Iteration 42 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:58:09,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:58:09,598 INFO L85 PathProgramCache]: Analyzing trace with hash -1878533287, now seen corresponding path program 1 times [2022-04-05 09:58:09,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:58:09,598 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800870593] [2022-04-05 09:58:09,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:58:09,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:58:09,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:58:09,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:58:09,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:58:09,684 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 141 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-04-05 09:58:09,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:58:09,684 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1800870593] [2022-04-05 09:58:09,684 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1800870593] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:58:09,684 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:58:09,684 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:58:09,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725077144] [2022-04-05 09:58:09,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:58:09,685 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:58:09,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:58:09,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:58:09,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:58:09,685 INFO L87 Difference]: Start difference. First operand 478 states and 692 transitions. Second operand has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:58:12,597 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:58:14,397 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:58:15,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:58:15,184 INFO L93 Difference]: Finished difference Result 1052 states and 1533 transitions. [2022-04-05 09:58:15,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:58:15,184 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 150 [2022-04-05 09:58:15,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:58:15,185 INFO L225 Difference]: With dead ends: 1052 [2022-04-05 09:58:15,185 INFO L226 Difference]: Without dead ends: 602 [2022-04-05 09:58:15,186 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:58:15,186 INFO L913 BasicCegarLoop]: 135 mSDtfsCounter, 124 mSDsluCounter, 249 mSDsCounter, 0 mSdLazyCounter, 489 mSolverCounterSat, 57 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 547 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 489 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-04-05 09:58:15,186 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [124 Valid, 384 Invalid, 547 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 489 Invalid, 1 Unknown, 0 Unchecked, 5.5s Time] [2022-04-05 09:58:15,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 602 states. [2022-04-05 09:58:15,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 602 to 513. [2022-04-05 09:58:15,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 513 states, 508 states have (on average 1.4507874015748032) internal successors, (737), 508 states have internal predecessors, (737), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:58:15,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 513 states to 513 states and 741 transitions. [2022-04-05 09:58:15,193 INFO L78 Accepts]: Start accepts. Automaton has 513 states and 741 transitions. Word has length 150 [2022-04-05 09:58:15,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:58:15,194 INFO L478 AbstractCegarLoop]: Abstraction has 513 states and 741 transitions. [2022-04-05 09:58:15,194 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:58:15,194 INFO L276 IsEmpty]: Start isEmpty. Operand 513 states and 741 transitions. [2022-04-05 09:58:15,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2022-04-05 09:58:15,195 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:58:15,195 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:58:15,195 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-04-05 09:58:15,195 INFO L403 AbstractCegarLoop]: === Iteration 43 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:58:15,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:58:15,195 INFO L85 PathProgramCache]: Analyzing trace with hash -200206081, now seen corresponding path program 1 times [2022-04-05 09:58:15,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:58:15,196 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763853931] [2022-04-05 09:58:15,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:58:15,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:58:15,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:58:15,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:58:15,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:58:15,284 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 142 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-04-05 09:58:15,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:58:15,284 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763853931] [2022-04-05 09:58:15,284 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1763853931] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:58:15,285 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:58:15,285 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:58:15,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660704595] [2022-04-05 09:58:15,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:58:15,285 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:58:15,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:58:15,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:58:15,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:58:15,285 INFO L87 Difference]: Start difference. First operand 513 states and 741 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:58:18,787 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:58:19,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:58:19,134 INFO L93 Difference]: Finished difference Result 1012 states and 1469 transitions. [2022-04-05 09:58:19,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:58:19,135 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 151 [2022-04-05 09:58:19,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:58:19,136 INFO L225 Difference]: With dead ends: 1012 [2022-04-05 09:58:19,136 INFO L226 Difference]: Without dead ends: 527 [2022-04-05 09:58:19,137 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:58:19,137 INFO L913 BasicCegarLoop]: 220 mSDtfsCounter, 33 mSDsluCounter, 341 mSDsCounter, 0 mSdLazyCounter, 462 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 561 SdHoareTripleChecker+Invalid, 469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 462 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-04-05 09:58:19,137 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 561 Invalid, 469 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 462 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2022-04-05 09:58:19,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 527 states. [2022-04-05 09:58:19,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 527 to 513. [2022-04-05 09:58:19,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 513 states, 508 states have (on average 1.4488188976377954) internal successors, (736), 508 states have internal predecessors, (736), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:58:19,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 513 states to 513 states and 740 transitions. [2022-04-05 09:58:19,145 INFO L78 Accepts]: Start accepts. Automaton has 513 states and 740 transitions. Word has length 151 [2022-04-05 09:58:19,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:58:19,145 INFO L478 AbstractCegarLoop]: Abstraction has 513 states and 740 transitions. [2022-04-05 09:58:19,145 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:58:19,145 INFO L276 IsEmpty]: Start isEmpty. Operand 513 states and 740 transitions. [2022-04-05 09:58:19,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-04-05 09:58:19,146 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:58:19,146 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 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] [2022-04-05 09:58:19,146 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-04-05 09:58:19,146 INFO L403 AbstractCegarLoop]: === Iteration 44 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:58:19,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:58:19,146 INFO L85 PathProgramCache]: Analyzing trace with hash 721708220, now seen corresponding path program 1 times [2022-04-05 09:58:19,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:58:19,147 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956626745] [2022-04-05 09:58:19,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:58:19,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:58:19,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:58:19,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:58:19,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:58:19,248 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 126 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-04-05 09:58:19,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:58:19,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956626745] [2022-04-05 09:58:19,248 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1956626745] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:58:19,248 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:58:19,248 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:58:19,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933065681] [2022-04-05 09:58:19,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:58:19,249 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:58:19,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:58:19,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:58:19,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:58:19,249 INFO L87 Difference]: Start difference. First operand 513 states and 740 transitions. Second operand has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:58:20,920 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:58:22,939 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:58:23,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:58:23,685 INFO L93 Difference]: Finished difference Result 1069 states and 1551 transitions. [2022-04-05 09:58:23,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:58:23,685 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 154 [2022-04-05 09:58:23,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:58:23,687 INFO L225 Difference]: With dead ends: 1069 [2022-04-05 09:58:23,687 INFO L226 Difference]: Without dead ends: 584 [2022-04-05 09:58:23,688 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:58:23,688 INFO L913 BasicCegarLoop]: 146 mSDtfsCounter, 140 mSDsluCounter, 260 mSDsCounter, 0 mSdLazyCounter, 478 mSolverCounterSat, 53 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 406 SdHoareTripleChecker+Invalid, 532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 478 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-04-05 09:58:23,688 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [140 Valid, 406 Invalid, 532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 478 Invalid, 1 Unknown, 0 Unchecked, 4.4s Time] [2022-04-05 09:58:23,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 584 states. [2022-04-05 09:58:23,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 584 to 513. [2022-04-05 09:58:23,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 513 states, 508 states have (on average 1.43503937007874) internal successors, (729), 508 states have internal predecessors, (729), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:58:23,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 513 states to 513 states and 733 transitions. [2022-04-05 09:58:23,695 INFO L78 Accepts]: Start accepts. Automaton has 513 states and 733 transitions. Word has length 154 [2022-04-05 09:58:23,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:58:23,696 INFO L478 AbstractCegarLoop]: Abstraction has 513 states and 733 transitions. [2022-04-05 09:58:23,696 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:58:23,696 INFO L276 IsEmpty]: Start isEmpty. Operand 513 states and 733 transitions. [2022-04-05 09:58:23,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2022-04-05 09:58:23,697 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:58:23,697 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:58:23,697 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-04-05 09:58:23,697 INFO L403 AbstractCegarLoop]: === Iteration 45 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:58:23,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:58:23,698 INFO L85 PathProgramCache]: Analyzing trace with hash -293704765, now seen corresponding path program 1 times [2022-04-05 09:58:23,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:58:23,698 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566924615] [2022-04-05 09:58:23,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:58:23,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:58:23,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:58:23,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:58:23,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:58:23,786 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 145 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-04-05 09:58:23,786 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:58:23,786 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566924615] [2022-04-05 09:58:23,786 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1566924615] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:58:23,787 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:58:23,787 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-05 09:58:23,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714634433] [2022-04-05 09:58:23,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:58:23,787 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-05 09:58:23,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:58:23,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-05 09:58:23,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 09:58:23,787 INFO L87 Difference]: Start difference. First operand 513 states and 733 transitions. Second operand has 4 states, 4 states have (on average 29.5) internal successors, (118), 3 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:58:26,082 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:58:27,899 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:58:28,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:58:28,186 INFO L93 Difference]: Finished difference Result 1453 states and 2098 transitions. [2022-04-05 09:58:28,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-05 09:58:28,187 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.5) internal successors, (118), 3 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 158 [2022-04-05 09:58:28,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:58:28,189 INFO L225 Difference]: With dead ends: 1453 [2022-04-05 09:58:28,189 INFO L226 Difference]: Without dead ends: 968 [2022-04-05 09:58:28,190 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 09:58:28,190 INFO L913 BasicCegarLoop]: 239 mSDtfsCounter, 145 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 293 mSolverCounterSat, 14 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 433 SdHoareTripleChecker+Invalid, 308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 293 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-04-05 09:58:28,190 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [145 Valid, 433 Invalid, 308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 293 Invalid, 1 Unknown, 0 Unchecked, 4.4s Time] [2022-04-05 09:58:28,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 968 states. [2022-04-05 09:58:28,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 968 to 968. [2022-04-05 09:58:28,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 968 states, 963 states have (on average 1.4330218068535825) internal successors, (1380), 963 states have internal predecessors, (1380), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:58:28,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 968 states to 968 states and 1384 transitions. [2022-04-05 09:58:28,203 INFO L78 Accepts]: Start accepts. Automaton has 968 states and 1384 transitions. Word has length 158 [2022-04-05 09:58:28,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:58:28,203 INFO L478 AbstractCegarLoop]: Abstraction has 968 states and 1384 transitions. [2022-04-05 09:58:28,203 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.5) internal successors, (118), 3 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:58:28,203 INFO L276 IsEmpty]: Start isEmpty. Operand 968 states and 1384 transitions. [2022-04-05 09:58:28,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2022-04-05 09:58:28,205 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:58:28,205 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:58:28,205 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-04-05 09:58:28,205 INFO L403 AbstractCegarLoop]: === Iteration 46 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:58:28,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:58:28,205 INFO L85 PathProgramCache]: Analyzing trace with hash -1249774760, now seen corresponding path program 1 times [2022-04-05 09:58:28,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:58:28,205 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1093227821] [2022-04-05 09:58:28,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:58:28,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:58:28,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:58:28,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:58:28,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:58:28,307 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 163 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2022-04-05 09:58:28,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:58:28,307 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1093227821] [2022-04-05 09:58:28,307 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1093227821] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:58:28,307 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:58:28,307 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:58:28,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960959199] [2022-04-05 09:58:28,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:58:28,308 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:58:28,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:58:28,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:58:28,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:58:28,308 INFO L87 Difference]: Start difference. First operand 968 states and 1384 transitions. Second operand has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:58:30,316 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:58:30,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:58:30,735 INFO L93 Difference]: Finished difference Result 2204 states and 3161 transitions. [2022-04-05 09:58:30,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:58:30,735 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 169 [2022-04-05 09:58:30,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:58:30,739 INFO L225 Difference]: With dead ends: 2204 [2022-04-05 09:58:30,739 INFO L226 Difference]: Without dead ends: 1264 [2022-04-05 09:58:30,740 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:58:30,740 INFO L913 BasicCegarLoop]: 141 mSDtfsCounter, 118 mSDsluCounter, 255 mSDsCounter, 0 mSdLazyCounter, 460 mSolverCounterSat, 43 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 396 SdHoareTripleChecker+Invalid, 504 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 460 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-05 09:58:30,740 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [118 Valid, 396 Invalid, 504 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 460 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-04-05 09:58:30,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1264 states. [2022-04-05 09:58:30,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1264 to 1096. [2022-04-05 09:58:30,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1096 states, 1091 states have (on average 1.4298808432630614) internal successors, (1560), 1091 states have internal predecessors, (1560), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:58:30,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1096 states to 1096 states and 1564 transitions. [2022-04-05 09:58:30,756 INFO L78 Accepts]: Start accepts. Automaton has 1096 states and 1564 transitions. Word has length 169 [2022-04-05 09:58:30,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:58:30,757 INFO L478 AbstractCegarLoop]: Abstraction has 1096 states and 1564 transitions. [2022-04-05 09:58:30,757 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:58:30,757 INFO L276 IsEmpty]: Start isEmpty. Operand 1096 states and 1564 transitions. [2022-04-05 09:58:30,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2022-04-05 09:58:30,758 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:58:30,758 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:58:30,758 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-04-05 09:58:30,759 INFO L403 AbstractCegarLoop]: === Iteration 47 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:58:30,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:58:30,759 INFO L85 PathProgramCache]: Analyzing trace with hash 1656372398, now seen corresponding path program 1 times [2022-04-05 09:58:30,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:58:30,759 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457216296] [2022-04-05 09:58:30,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:58:30,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:58:30,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:58:30,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:58:30,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:58:30,870 INFO L134 CoverageAnalysis]: Checked inductivity of 254 backedges. 159 proven. 0 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2022-04-05 09:58:30,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:58:30,870 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1457216296] [2022-04-05 09:58:30,870 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1457216296] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:58:30,870 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:58:30,871 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:58:30,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376148445] [2022-04-05 09:58:30,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:58:30,871 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:58:30,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:58:30,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:58:30,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:58:30,871 INFO L87 Difference]: Start difference. First operand 1096 states and 1564 transitions. Second operand has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:58:33,793 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:58:35,203 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:58:36,432 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:58:36,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:58:36,841 INFO L93 Difference]: Finished difference Result 2264 states and 3243 transitions. [2022-04-05 09:58:36,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:58:36,841 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 175 [2022-04-05 09:58:36,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:58:36,844 INFO L225 Difference]: With dead ends: 2264 [2022-04-05 09:58:36,844 INFO L226 Difference]: Without dead ends: 1196 [2022-04-05 09:58:36,846 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:58:36,846 INFO L913 BasicCegarLoop]: 250 mSDtfsCounter, 40 mSDsluCounter, 369 mSDsCounter, 0 mSdLazyCounter, 491 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 619 SdHoareTripleChecker+Invalid, 497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 491 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-04-05 09:58:36,846 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [40 Valid, 619 Invalid, 497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 491 Invalid, 1 Unknown, 0 Unchecked, 5.9s Time] [2022-04-05 09:58:36,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1196 states. [2022-04-05 09:58:36,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1196 to 1152. [2022-04-05 09:58:36,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1152 states, 1147 states have (on average 1.4315605928509154) internal successors, (1642), 1147 states have internal predecessors, (1642), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:58:36,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1152 states to 1152 states and 1646 transitions. [2022-04-05 09:58:36,862 INFO L78 Accepts]: Start accepts. Automaton has 1152 states and 1646 transitions. Word has length 175 [2022-04-05 09:58:36,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:58:36,862 INFO L478 AbstractCegarLoop]: Abstraction has 1152 states and 1646 transitions. [2022-04-05 09:58:36,862 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:58:36,862 INFO L276 IsEmpty]: Start isEmpty. Operand 1152 states and 1646 transitions. [2022-04-05 09:58:36,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2022-04-05 09:58:36,864 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:58:36,864 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:58:36,864 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-04-05 09:58:36,864 INFO L403 AbstractCegarLoop]: === Iteration 48 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:58:36,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:58:36,864 INFO L85 PathProgramCache]: Analyzing trace with hash 1721152593, now seen corresponding path program 1 times [2022-04-05 09:58:36,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:58:36,864 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873453397] [2022-04-05 09:58:36,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:58:36,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:58:36,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:58:36,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:58:36,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:58:36,976 INFO L134 CoverageAnalysis]: Checked inductivity of 363 backedges. 276 proven. 0 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2022-04-05 09:58:36,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:58:36,976 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1873453397] [2022-04-05 09:58:36,976 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1873453397] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:58:36,976 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:58:36,976 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-05 09:58:36,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934619001] [2022-04-05 09:58:36,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:58:36,977 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-05 09:58:36,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:58:36,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-05 09:58:36,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 09:58:36,978 INFO L87 Difference]: Start difference. First operand 1152 states and 1646 transitions. Second operand has 4 states, 4 states have (on average 31.0) internal successors, (124), 3 states have internal predecessors, (124), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:58:38,048 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:58:39,176 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:58:40,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:58:40,436 INFO L93 Difference]: Finished difference Result 2823 states and 4055 transitions. [2022-04-05 09:58:40,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-05 09:58:40,436 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.0) internal successors, (124), 3 states have internal predecessors, (124), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 200 [2022-04-05 09:58:40,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:58:40,439 INFO L225 Difference]: With dead ends: 2823 [2022-04-05 09:58:40,439 INFO L226 Difference]: Without dead ends: 1699 [2022-04-05 09:58:40,441 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 09:58:40,441 INFO L913 BasicCegarLoop]: 389 mSDtfsCounter, 147 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 444 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 583 SdHoareTripleChecker+Invalid, 458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 444 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-04-05 09:58:40,441 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [147 Valid, 583 Invalid, 458 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 444 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-04-05 09:58:40,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1699 states. [2022-04-05 09:58:40,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1699 to 1699. [2022-04-05 09:58:40,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1699 states, 1694 states have (on average 1.4309327036599764) internal successors, (2424), 1694 states have internal predecessors, (2424), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:58:40,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1699 states to 1699 states and 2428 transitions. [2022-04-05 09:58:40,466 INFO L78 Accepts]: Start accepts. Automaton has 1699 states and 2428 transitions. Word has length 200 [2022-04-05 09:58:40,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:58:40,466 INFO L478 AbstractCegarLoop]: Abstraction has 1699 states and 2428 transitions. [2022-04-05 09:58:40,466 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.0) internal successors, (124), 3 states have internal predecessors, (124), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:58:40,467 INFO L276 IsEmpty]: Start isEmpty. Operand 1699 states and 2428 transitions. [2022-04-05 09:58:40,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2022-04-05 09:58:40,469 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:58:40,469 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:58:40,469 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-04-05 09:58:40,469 INFO L403 AbstractCegarLoop]: === Iteration 49 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:58:40,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:58:40,470 INFO L85 PathProgramCache]: Analyzing trace with hash -864047940, now seen corresponding path program 1 times [2022-04-05 09:58:40,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:58:40,470 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170953453] [2022-04-05 09:58:40,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:58:40,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:58:40,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:58:40,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:58:40,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:58:40,589 INFO L134 CoverageAnalysis]: Checked inductivity of 363 backedges. 182 proven. 0 refuted. 0 times theorem prover too weak. 181 trivial. 0 not checked. [2022-04-05 09:58:40,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:58:40,589 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170953453] [2022-04-05 09:58:40,590 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1170953453] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:58:40,590 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:58:40,590 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-05 09:58:40,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447678106] [2022-04-05 09:58:40,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:58:40,590 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-05 09:58:40,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:58:40,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-05 09:58:40,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 09:58:40,590 INFO L87 Difference]: Start difference. First operand 1699 states and 2428 transitions. Second operand has 4 states, 4 states have (on average 26.75) internal successors, (107), 3 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:58:42,599 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:58:42,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:58:42,878 INFO L93 Difference]: Finished difference Result 3918 states and 5620 transitions. [2022-04-05 09:58:42,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-05 09:58:42,878 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.75) internal successors, (107), 3 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 201 [2022-04-05 09:58:42,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:58:42,882 INFO L225 Difference]: With dead ends: 3918 [2022-04-05 09:58:42,882 INFO L226 Difference]: Without dead ends: 2247 [2022-04-05 09:58:42,884 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 09:58:42,884 INFO L913 BasicCegarLoop]: 199 mSDtfsCounter, 157 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 258 mSolverCounterSat, 17 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 258 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-04-05 09:58:42,884 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [157 Valid, 384 Invalid, 276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 258 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-04-05 09:58:42,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2247 states. [2022-04-05 09:58:42,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2247 to 2247. [2022-04-05 09:58:42,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2247 states, 2242 states have (on average 1.4330954504906335) internal successors, (3213), 2242 states have internal predecessors, (3213), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:58:42,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2247 states to 2247 states and 3217 transitions. [2022-04-05 09:58:42,917 INFO L78 Accepts]: Start accepts. Automaton has 2247 states and 3217 transitions. Word has length 201 [2022-04-05 09:58:42,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:58:42,917 INFO L478 AbstractCegarLoop]: Abstraction has 2247 states and 3217 transitions. [2022-04-05 09:58:42,917 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.75) internal successors, (107), 3 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:58:42,917 INFO L276 IsEmpty]: Start isEmpty. Operand 2247 states and 3217 transitions. [2022-04-05 09:58:42,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2022-04-05 09:58:42,920 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:58:42,920 INFO L499 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:58:42,920 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-04-05 09:58:42,920 INFO L403 AbstractCegarLoop]: === Iteration 50 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:58:42,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:58:42,921 INFO L85 PathProgramCache]: Analyzing trace with hash -1153640501, now seen corresponding path program 1 times [2022-04-05 09:58:42,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:58:42,921 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687078011] [2022-04-05 09:58:42,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:58:42,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:58:43,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:58:43,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:58:43,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:58:43,058 INFO L134 CoverageAnalysis]: Checked inductivity of 515 backedges. 374 proven. 0 refuted. 0 times theorem prover too weak. 141 trivial. 0 not checked. [2022-04-05 09:58:43,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:58:43,058 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687078011] [2022-04-05 09:58:43,058 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [687078011] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:58:43,058 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:58:43,059 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-05 09:58:43,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918550371] [2022-04-05 09:58:43,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:58:43,059 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-05 09:58:43,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:58:43,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-05 09:58:43,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 09:58:43,059 INFO L87 Difference]: Start difference. First operand 2247 states and 3217 transitions. Second operand has 4 states, 4 states have (on average 33.0) internal successors, (132), 3 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) [2022-04-05 09:58:45,049 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 [] [2022-04-05 09:58:47,071 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:58:47,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:58:47,496 INFO L93 Difference]: Finished difference Result 5013 states and 7190 transitions. [2022-04-05 09:58:47,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-05 09:58:47,496 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.0) internal successors, (132), 3 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 233 [2022-04-05 09:58:47,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:58:47,500 INFO L225 Difference]: With dead ends: 5013 [2022-04-05 09:58:47,500 INFO L226 Difference]: Without dead ends: 2794 [2022-04-05 09:58:47,503 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 09:58:47,503 INFO L913 BasicCegarLoop]: 391 mSDtfsCounter, 152 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 445 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 585 SdHoareTripleChecker+Invalid, 453 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 445 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-04-05 09:58:47,503 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [152 Valid, 585 Invalid, 453 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 445 Invalid, 1 Unknown, 0 Unchecked, 4.4s Time] [2022-04-05 09:58:47,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2794 states. [2022-04-05 09:58:47,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2794 to 2794. [2022-04-05 09:58:47,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2794 states, 2789 states have (on average 1.4324130512728577) internal successors, (3995), 2789 states have internal predecessors, (3995), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:58:47,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2794 states to 2794 states and 3999 transitions. [2022-04-05 09:58:47,542 INFO L78 Accepts]: Start accepts. Automaton has 2794 states and 3999 transitions. Word has length 233 [2022-04-05 09:58:47,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:58:47,542 INFO L478 AbstractCegarLoop]: Abstraction has 2794 states and 3999 transitions. [2022-04-05 09:58:47,542 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.0) internal successors, (132), 3 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) [2022-04-05 09:58:47,542 INFO L276 IsEmpty]: Start isEmpty. Operand 2794 states and 3999 transitions. [2022-04-05 09:58:47,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2022-04-05 09:58:47,546 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:58:47,546 INFO L499 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:58:47,546 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-04-05 09:58:47,546 INFO L403 AbstractCegarLoop]: === Iteration 51 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:58:47,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:58:47,546 INFO L85 PathProgramCache]: Analyzing trace with hash 1539767600, now seen corresponding path program 1 times [2022-04-05 09:58:47,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:58:47,547 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361957910] [2022-04-05 09:58:47,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:58:47,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:58:47,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:58:47,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:58:47,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:58:47,671 INFO L134 CoverageAnalysis]: Checked inductivity of 515 backedges. 270 proven. 0 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2022-04-05 09:58:47,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:58:47,671 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361957910] [2022-04-05 09:58:47,671 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1361957910] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:58:47,671 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:58:47,671 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-05 09:58:47,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299076039] [2022-04-05 09:58:47,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:58:47,672 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-05 09:58:47,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:58:47,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-05 09:58:47,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 09:58:47,672 INFO L87 Difference]: Start difference. First operand 2794 states and 3999 transitions. Second operand has 4 states, 4 states have (on average 37.25) internal successors, (149), 3 states have internal predecessors, (149), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:58:49,417 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:58:50,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:58:50,291 INFO L93 Difference]: Finished difference Result 6108 states and 8762 transitions. [2022-04-05 09:58:50,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-05 09:58:50,292 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.25) internal successors, (149), 3 states have internal predecessors, (149), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 239 [2022-04-05 09:58:50,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:58:50,297 INFO L225 Difference]: With dead ends: 6108 [2022-04-05 09:58:50,297 INFO L226 Difference]: Without dead ends: 3342 [2022-04-05 09:58:50,300 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 09:58:50,300 INFO L913 BasicCegarLoop]: 198 mSDtfsCounter, 162 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 261 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 383 SdHoareTripleChecker+Invalid, 279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-04-05 09:58:50,301 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [162 Valid, 383 Invalid, 279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 261 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-04-05 09:58:50,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3342 states. [2022-04-05 09:58:50,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3342 to 3342. [2022-04-05 09:58:50,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3342 states, 3337 states have (on average 1.4339226850464488) internal successors, (4785), 3337 states have internal predecessors, (4785), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:58:50,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3342 states to 3342 states and 4789 transitions. [2022-04-05 09:58:50,366 INFO L78 Accepts]: Start accepts. Automaton has 3342 states and 4789 transitions. Word has length 239 [2022-04-05 09:58:50,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:58:50,366 INFO L478 AbstractCegarLoop]: Abstraction has 3342 states and 4789 transitions. [2022-04-05 09:58:50,367 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.25) internal successors, (149), 3 states have internal predecessors, (149), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:58:50,367 INFO L276 IsEmpty]: Start isEmpty. Operand 3342 states and 4789 transitions. [2022-04-05 09:58:50,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2022-04-05 09:58:50,372 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:58:50,372 INFO L499 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:58:50,372 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-04-05 09:58:50,372 INFO L403 AbstractCegarLoop]: === Iteration 52 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:58:50,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:58:50,373 INFO L85 PathProgramCache]: Analyzing trace with hash -117759833, now seen corresponding path program 1 times [2022-04-05 09:58:50,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:58:50,373 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054082545] [2022-04-05 09:58:50,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:58:50,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:58:50,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:58:50,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:58:50,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:58:50,489 INFO L134 CoverageAnalysis]: Checked inductivity of 515 backedges. 270 proven. 0 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2022-04-05 09:58:50,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:58:50,489 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054082545] [2022-04-05 09:58:50,489 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2054082545] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:58:50,489 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:58:50,489 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-05 09:58:50,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244298108] [2022-04-05 09:58:50,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:58:50,490 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-05 09:58:50,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:58:50,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-05 09:58:50,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 09:58:50,490 INFO L87 Difference]: Start difference. First operand 3342 states and 4789 transitions. Second operand has 4 states, 4 states have (on average 37.75) internal successors, (151), 3 states have internal predecessors, (151), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:58:52,497 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:58:52,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:58:52,819 INFO L93 Difference]: Finished difference Result 7204 states and 10342 transitions. [2022-04-05 09:58:52,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-05 09:58:52,820 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.75) internal successors, (151), 3 states have internal predecessors, (151), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 241 [2022-04-05 09:58:52,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:58:52,825 INFO L225 Difference]: With dead ends: 7204 [2022-04-05 09:58:52,825 INFO L226 Difference]: Without dead ends: 3890 [2022-04-05 09:58:52,828 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 09:58:52,829 INFO L913 BasicCegarLoop]: 197 mSDtfsCounter, 163 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 258 mSolverCounterSat, 19 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 258 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-04-05 09:58:52,829 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [163 Valid, 382 Invalid, 278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 258 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-04-05 09:58:52,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3890 states. [2022-04-05 09:58:52,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3890 to 3890. [2022-04-05 09:58:52,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3890 states, 3885 states have (on average 1.4352638352638352) internal successors, (5576), 3885 states have internal predecessors, (5576), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:58:52,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3890 states to 3890 states and 5580 transitions. [2022-04-05 09:58:52,882 INFO L78 Accepts]: Start accepts. Automaton has 3890 states and 5580 transitions. Word has length 241 [2022-04-05 09:58:52,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:58:52,882 INFO L478 AbstractCegarLoop]: Abstraction has 3890 states and 5580 transitions. [2022-04-05 09:58:52,882 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.75) internal successors, (151), 3 states have internal predecessors, (151), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:58:52,882 INFO L276 IsEmpty]: Start isEmpty. Operand 3890 states and 5580 transitions. [2022-04-05 09:58:52,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2022-04-05 09:58:52,887 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:58:52,887 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 5, 5, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:58:52,888 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-04-05 09:58:52,888 INFO L403 AbstractCegarLoop]: === Iteration 53 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:58:52,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:58:52,888 INFO L85 PathProgramCache]: Analyzing trace with hash -352741277, now seen corresponding path program 1 times [2022-04-05 09:58:52,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:58:52,888 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344553070] [2022-04-05 09:58:52,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:58:52,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:58:52,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:58:53,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:58:53,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:58:53,037 INFO L134 CoverageAnalysis]: Checked inductivity of 694 backedges. 181 proven. 0 refuted. 0 times theorem prover too weak. 513 trivial. 0 not checked. [2022-04-05 09:58:53,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:58:53,038 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1344553070] [2022-04-05 09:58:53,038 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1344553070] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:58:53,038 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:58:53,038 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-05 09:58:53,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248099684] [2022-04-05 09:58:53,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:58:53,038 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-05 09:58:53,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:58:53,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-05 09:58:53,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 09:58:53,039 INFO L87 Difference]: Start difference. First operand 3890 states and 5580 transitions. Second operand has 4 states, 4 states have (on average 32.0) internal successors, (128), 3 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:58:54,645 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 [] [2022-04-05 09:58:57,031 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:58:57,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:58:57,488 INFO L93 Difference]: Finished difference Result 8295 states and 11917 transitions. [2022-04-05 09:58:57,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-05 09:58:57,489 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.0) internal successors, (128), 3 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 274 [2022-04-05 09:58:57,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:58:57,496 INFO L225 Difference]: With dead ends: 8295 [2022-04-05 09:58:57,496 INFO L226 Difference]: Without dead ends: 4433 [2022-04-05 09:58:57,501 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 09:58:57,501 INFO L913 BasicCegarLoop]: 388 mSDtfsCounter, 146 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 440 mSolverCounterSat, 13 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 582 SdHoareTripleChecker+Invalid, 454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 440 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-04-05 09:58:57,501 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [146 Valid, 582 Invalid, 454 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 440 Invalid, 1 Unknown, 0 Unchecked, 4.4s Time] [2022-04-05 09:58:57,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4433 states. [2022-04-05 09:58:57,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4433 to 4433. [2022-04-05 09:58:57,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4433 states, 4428 states have (on average 1.4347335140018067) internal successors, (6353), 4428 states have internal predecessors, (6353), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:58:57,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4433 states to 4433 states and 6357 transitions. [2022-04-05 09:58:57,584 INFO L78 Accepts]: Start accepts. Automaton has 4433 states and 6357 transitions. Word has length 274 [2022-04-05 09:58:57,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:58:57,584 INFO L478 AbstractCegarLoop]: Abstraction has 4433 states and 6357 transitions. [2022-04-05 09:58:57,584 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.0) internal successors, (128), 3 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:58:57,584 INFO L276 IsEmpty]: Start isEmpty. Operand 4433 states and 6357 transitions. [2022-04-05 09:58:57,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2022-04-05 09:58:57,590 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:58:57,590 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 5, 5, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:58:57,590 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-04-05 09:58:57,590 INFO L403 AbstractCegarLoop]: === Iteration 54 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:58:57,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:58:57,590 INFO L85 PathProgramCache]: Analyzing trace with hash 1108838722, now seen corresponding path program 1 times [2022-04-05 09:58:57,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:58:57,590 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061485125] [2022-04-05 09:58:57,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:58:57,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:58:57,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:58:57,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:58:57,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:58:57,722 INFO L134 CoverageAnalysis]: Checked inductivity of 694 backedges. 330 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2022-04-05 09:58:57,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:58:57,723 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2061485125] [2022-04-05 09:58:57,723 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2061485125] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:58:57,723 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:58:57,723 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-05 09:58:57,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299112521] [2022-04-05 09:58:57,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:58:57,723 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-05 09:58:57,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:58:57,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-05 09:58:57,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 09:58:57,724 INFO L87 Difference]: Start difference. First operand 4433 states and 6357 transitions. Second operand has 4 states, 4 states have (on average 39.25) internal successors, (157), 3 states have internal predecessors, (157), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:58:58,826 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 [] [2022-04-05 09:59:00,843 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:59:02,867 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:59:03,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:59:03,331 INFO L93 Difference]: Finished difference Result 9353 states and 13431 transitions. [2022-04-05 09:59:03,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-05 09:59:03,331 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.25) internal successors, (157), 3 states have internal predecessors, (157), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 274 [2022-04-05 09:59:03,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:59:03,339 INFO L225 Difference]: With dead ends: 9353 [2022-04-05 09:59:03,339 INFO L226 Difference]: Without dead ends: 4948 [2022-04-05 09:59:03,345 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 09:59:03,345 INFO L913 BasicCegarLoop]: 391 mSDtfsCounter, 152 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 444 mSolverCounterSat, 14 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 585 SdHoareTripleChecker+Invalid, 460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 444 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-04-05 09:59:03,346 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [152 Valid, 585 Invalid, 460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 444 Invalid, 2 Unknown, 0 Unchecked, 5.5s Time] [2022-04-05 09:59:03,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4948 states. [2022-04-05 09:59:03,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4948 to 4948. [2022-04-05 09:59:03,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4948 states, 4943 states have (on average 1.4341493020432936) internal successors, (7089), 4943 states have internal predecessors, (7089), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:59:03,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4948 states to 4948 states and 7093 transitions. [2022-04-05 09:59:03,446 INFO L78 Accepts]: Start accepts. Automaton has 4948 states and 7093 transitions. Word has length 274 [2022-04-05 09:59:03,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:59:03,446 INFO L478 AbstractCegarLoop]: Abstraction has 4948 states and 7093 transitions. [2022-04-05 09:59:03,446 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.25) internal successors, (157), 3 states have internal predecessors, (157), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:59:03,446 INFO L276 IsEmpty]: Start isEmpty. Operand 4948 states and 7093 transitions. [2022-04-05 09:59:03,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 349 [2022-04-05 09:59:03,453 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:59:03,453 INFO L499 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 9, 9, 8, 8, 7, 7, 6, 6, 6, 6, 6, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:59:03,453 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-04-05 09:59:03,453 INFO L403 AbstractCegarLoop]: === Iteration 55 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:59:03,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:59:03,453 INFO L85 PathProgramCache]: Analyzing trace with hash -107701387, now seen corresponding path program 1 times [2022-04-05 09:59:03,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:59:03,453 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2139138946] [2022-04-05 09:59:03,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:59:03,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:59:03,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:59:03,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:59:03,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:59:03,650 INFO L134 CoverageAnalysis]: Checked inductivity of 1159 backedges. 433 proven. 0 refuted. 0 times theorem prover too weak. 726 trivial. 0 not checked. [2022-04-05 09:59:03,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:59:03,650 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2139138946] [2022-04-05 09:59:03,650 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2139138946] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:59:03,650 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:59:03,650 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-05 09:59:03,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888632038] [2022-04-05 09:59:03,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:59:03,651 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-05 09:59:03,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:59:03,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-05 09:59:03,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 09:59:03,651 INFO L87 Difference]: Start difference. First operand 4948 states and 7093 transitions. Second operand has 4 states, 4 states have (on average 35.0) internal successors, (140), 3 states have internal predecessors, (140), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:59:05,658 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:59:05,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:59:05,980 INFO L93 Difference]: Finished difference Result 10416 states and 14950 transitions. [2022-04-05 09:59:05,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-05 09:59:05,981 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.0) internal successors, (140), 3 states have internal predecessors, (140), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 348 [2022-04-05 09:59:05,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:59:06,002 INFO L225 Difference]: With dead ends: 10416 [2022-04-05 09:59:06,002 INFO L226 Difference]: Without dead ends: 5496 [2022-04-05 09:59:06,007 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 09:59:06,007 INFO L913 BasicCegarLoop]: 194 mSDtfsCounter, 154 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 258 mSolverCounterSat, 22 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 379 SdHoareTripleChecker+Invalid, 281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 258 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-04-05 09:59:06,007 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [154 Valid, 379 Invalid, 281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 258 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-04-05 09:59:06,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5496 states. [2022-04-05 09:59:06,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5496 to 5496. [2022-04-05 09:59:06,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5496 states, 5491 states have (on average 1.4356219267892916) internal successors, (7883), 5491 states have internal predecessors, (7883), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:59:06,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5496 states to 5496 states and 7887 transitions. [2022-04-05 09:59:06,120 INFO L78 Accepts]: Start accepts. Automaton has 5496 states and 7887 transitions. Word has length 348 [2022-04-05 09:59:06,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:59:06,120 INFO L478 AbstractCegarLoop]: Abstraction has 5496 states and 7887 transitions. [2022-04-05 09:59:06,120 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.0) internal successors, (140), 3 states have internal predecessors, (140), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:59:06,120 INFO L276 IsEmpty]: Start isEmpty. Operand 5496 states and 7887 transitions. [2022-04-05 09:59:06,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 390 [2022-04-05 09:59:06,127 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:59:06,128 INFO L499 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 10, 10, 9, 9, 8, 8, 7, 7, 7, 7, 7, 6, 6, 5, 5, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:59:06,128 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-04-05 09:59:06,128 INFO L403 AbstractCegarLoop]: === Iteration 56 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:59:06,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:59:06,128 INFO L85 PathProgramCache]: Analyzing trace with hash -1664082659, now seen corresponding path program 1 times [2022-04-05 09:59:06,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:59:06,128 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218824922] [2022-04-05 09:59:06,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:59:06,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:59:06,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:59:06,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:59:06,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:59:06,332 INFO L134 CoverageAnalysis]: Checked inductivity of 1440 backedges. 499 proven. 0 refuted. 0 times theorem prover too weak. 941 trivial. 0 not checked. [2022-04-05 09:59:06,333 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:59:06,333 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1218824922] [2022-04-05 09:59:06,333 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1218824922] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:59:06,333 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:59:06,333 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-05 09:59:06,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927482777] [2022-04-05 09:59:06,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:59:06,334 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-05 09:59:06,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:59:06,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-05 09:59:06,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 09:59:06,334 INFO L87 Difference]: Start difference. First operand 5496 states and 7887 transitions. Second operand has 4 states, 4 states have (on average 37.0) internal successors, (148), 3 states have internal predecessors, (148), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:59:08,344 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:59:08,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:59:08,694 INFO L93 Difference]: Finished difference Result 6046 states and 8684 transitions. [2022-04-05 09:59:08,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-05 09:59:08,694 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.0) internal successors, (148), 3 states have internal predecessors, (148), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 389 [2022-04-05 09:59:08,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:59:08,700 INFO L225 Difference]: With dead ends: 6046 [2022-04-05 09:59:08,701 INFO L226 Difference]: Without dead ends: 6044 [2022-04-05 09:59:08,702 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 09:59:08,702 INFO L913 BasicCegarLoop]: 193 mSDtfsCounter, 155 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 258 mSolverCounterSat, 23 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 258 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-04-05 09:59:08,702 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [155 Valid, 378 Invalid, 282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 258 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-04-05 09:59:08,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6044 states. [2022-04-05 09:59:08,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6044 to 6044. [2022-04-05 09:59:08,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6044 states, 6039 states have (on average 1.4369928796158304) internal successors, (8678), 6039 states have internal predecessors, (8678), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:59:08,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6044 states to 6044 states and 8682 transitions. [2022-04-05 09:59:08,807 INFO L78 Accepts]: Start accepts. Automaton has 6044 states and 8682 transitions. Word has length 389 [2022-04-05 09:59:08,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:59:08,808 INFO L478 AbstractCegarLoop]: Abstraction has 6044 states and 8682 transitions. [2022-04-05 09:59:08,808 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.0) internal successors, (148), 3 states have internal predecessors, (148), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:59:08,808 INFO L276 IsEmpty]: Start isEmpty. Operand 6044 states and 8682 transitions. [2022-04-05 09:59:08,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 398 [2022-04-05 09:59:08,816 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:59:08,816 INFO L499 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 10, 10, 9, 9, 8, 8, 7, 7, 7, 7, 7, 6, 6, 5, 5, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:59:08,816 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-04-05 09:59:08,816 INFO L403 AbstractCegarLoop]: === Iteration 57 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:59:08,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:59:08,816 INFO L85 PathProgramCache]: Analyzing trace with hash 1764989462, now seen corresponding path program 1 times [2022-04-05 09:59:08,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:59:08,816 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790311190] [2022-04-05 09:59:08,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:59:08,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:59:08,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:59:09,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:59:09,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:59:09,010 INFO L134 CoverageAnalysis]: Checked inductivity of 1445 backedges. 717 proven. 0 refuted. 0 times theorem prover too weak. 728 trivial. 0 not checked. [2022-04-05 09:59:09,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:59:09,010 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [790311190] [2022-04-05 09:59:09,010 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [790311190] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:59:09,010 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:59:09,010 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:59:09,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128292961] [2022-04-05 09:59:09,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:59:09,011 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:59:09,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:59:09,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:59:09,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:59:09,011 INFO L87 Difference]: Start difference. First operand 6044 states and 8682 transitions. Second operand has 5 states, 5 states have (on average 37.4) internal successors, (187), 4 states have internal predecessors, (187), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:59:10,749 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:59:12,773 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:59:14,796 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:59:16,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:59:16,112 INFO L93 Difference]: Finished difference Result 12961 states and 18579 transitions. [2022-04-05 09:59:16,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:59:16,112 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 37.4) internal successors, (187), 4 states have internal predecessors, (187), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 397 [2022-04-05 09:59:16,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:59:16,119 INFO L225 Difference]: With dead ends: 12961 [2022-04-05 09:59:16,119 INFO L226 Difference]: Without dead ends: 6945 [2022-04-05 09:59:16,126 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:59:16,126 INFO L913 BasicCegarLoop]: 271 mSDtfsCounter, 64 mSDsluCounter, 390 mSDsCounter, 0 mSdLazyCounter, 582 mSolverCounterSat, 6 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 661 SdHoareTripleChecker+Invalid, 590 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 582 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2022-04-05 09:59:16,127 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [64 Valid, 661 Invalid, 590 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 582 Invalid, 2 Unknown, 0 Unchecked, 7.0s Time] [2022-04-05 09:59:16,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6945 states. [2022-04-05 09:59:16,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6945 to 6495. [2022-04-05 09:59:16,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6495 states, 6490 states have (on average 1.4354391371340525) internal successors, (9316), 6490 states have internal predecessors, (9316), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:59:16,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6495 states to 6495 states and 9320 transitions. [2022-04-05 09:59:16,236 INFO L78 Accepts]: Start accepts. Automaton has 6495 states and 9320 transitions. Word has length 397 [2022-04-05 09:59:16,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:59:16,236 INFO L478 AbstractCegarLoop]: Abstraction has 6495 states and 9320 transitions. [2022-04-05 09:59:16,236 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 37.4) internal successors, (187), 4 states have internal predecessors, (187), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:59:16,236 INFO L276 IsEmpty]: Start isEmpty. Operand 6495 states and 9320 transitions. [2022-04-05 09:59:16,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 398 [2022-04-05 09:59:16,245 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:59:16,245 INFO L499 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 10, 10, 9, 9, 8, 8, 7, 7, 7, 7, 7, 6, 6, 5, 5, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:59:16,245 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-04-05 09:59:16,245 INFO L403 AbstractCegarLoop]: === Iteration 58 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:59:16,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:59:16,246 INFO L85 PathProgramCache]: Analyzing trace with hash -2056458891, now seen corresponding path program 1 times [2022-04-05 09:59:16,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:59:16,246 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467035] [2022-04-05 09:59:16,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:59:16,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:59:16,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:59:16,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:59:16,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:59:16,979 INFO L134 CoverageAnalysis]: Checked inductivity of 1445 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1445 trivial. 0 not checked. [2022-04-05 09:59:16,979 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:59:16,979 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467035] [2022-04-05 09:59:16,980 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [467035] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:59:16,980 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:59:16,980 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-04-05 09:59:16,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403545408] [2022-04-05 09:59:16,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:59:16,980 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-04-05 09:59:16,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:59:16,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-04-05 09:59:16,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-04-05 09:59:16,981 INFO L87 Difference]: Start difference. First operand 6495 states and 9320 transitions. Second operand has 7 states, 6 states have (on average 19.5) internal successors, (117), 5 states have internal predecessors, (117), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:59:18,029 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:59:20,043 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:59:22,827 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:59:24,855 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:59:26,880 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:59:27,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:59:27,469 INFO L93 Difference]: Finished difference Result 12983 states and 18632 transitions. [2022-04-05 09:59:27,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-04-05 09:59:27,469 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 19.5) internal successors, (117), 5 states have internal predecessors, (117), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 397 [2022-04-05 09:59:27,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:59:27,477 INFO L225 Difference]: With dead ends: 12983 [2022-04-05 09:59:27,477 INFO L226 Difference]: Without dead ends: 6495 [2022-04-05 09:59:27,484 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-04-05 09:59:27,484 INFO L913 BasicCegarLoop]: 215 mSDtfsCounter, 7 mSDsluCounter, 656 mSDsCounter, 0 mSdLazyCounter, 448 mSolverCounterSat, 4 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 871 SdHoareTripleChecker+Invalid, 455 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 448 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.4s IncrementalHoareTripleChecker+Time [2022-04-05 09:59:27,484 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 871 Invalid, 455 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 448 Invalid, 3 Unknown, 0 Unchecked, 10.4s Time] [2022-04-05 09:59:27,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6495 states. [2022-04-05 09:59:27,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6495 to 6495. [2022-04-05 09:59:27,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6495 states, 6490 states have (on average 1.4352850539291218) internal successors, (9315), 6490 states have internal predecessors, (9315), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:59:27,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6495 states to 6495 states and 9319 transitions. [2022-04-05 09:59:27,583 INFO L78 Accepts]: Start accepts. Automaton has 6495 states and 9319 transitions. Word has length 397 [2022-04-05 09:59:27,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:59:27,583 INFO L478 AbstractCegarLoop]: Abstraction has 6495 states and 9319 transitions. [2022-04-05 09:59:27,583 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 19.5) internal successors, (117), 5 states have internal predecessors, (117), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:59:27,583 INFO L276 IsEmpty]: Start isEmpty. Operand 6495 states and 9319 transitions. [2022-04-05 09:59:27,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 398 [2022-04-05 09:59:27,591 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:59:27,592 INFO L499 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 10, 10, 9, 9, 8, 8, 7, 7, 7, 7, 7, 6, 6, 5, 5, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:59:27,592 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-04-05 09:59:27,592 INFO L403 AbstractCegarLoop]: === Iteration 59 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:59:27,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:59:27,593 INFO L85 PathProgramCache]: Analyzing trace with hash 1001650358, now seen corresponding path program 1 times [2022-04-05 09:59:27,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:59:27,593 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2116089273] [2022-04-05 09:59:27,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:59:27,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:59:28,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:59:29,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:59:29,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:59:29,420 INFO L134 CoverageAnalysis]: Checked inductivity of 1445 backedges. 140 proven. 1228 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2022-04-05 09:59:29,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:59:29,420 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2116089273] [2022-04-05 09:59:29,420 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2116089273] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-05 09:59:29,421 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [801301276] [2022-04-05 09:59:29,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:59:29,421 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-05 09:59:29,421 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-05 09:59:29,423 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-05 09:59:29,426 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-04-05 09:59:30,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:59:30,654 INFO L263 TraceCheckSpWp]: Trace formula consists of 2032 conjuncts, 253 conjunts are in the unsatisfiable core [2022-04-05 09:59:30,709 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-05 09:59:30,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 09:59:30,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 09:59:32,347 INFO L356 Elim1Store]: treesize reduction 520, result has 8.1 percent of original size [2022-04-05 09:59:32,348 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 5 case distinctions, treesize of input 23994990 treesize of output 21865134 [2022-04-05 09:59:44,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 09:59:44,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 09:59:44,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 09:59:44,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 09:59:44,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 09:59:44,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 09:59:55,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:00:35,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:00:35,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:00:35,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:00:35,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:00:35,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:00:35,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:00:35,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:00:35,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:00:35,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:00:35,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:00:35,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:00:35,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:00:35,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:00:35,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:00:35,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:00:35,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:00:35,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:00:35,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:00:35,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:00:35,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:00:35,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:01:20,071 WARN L232 SmtUtils]: Spent 39.98s on a formula simplification. DAG size of input: 346 DAG size of output: 126 (called from [L 353] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-04-05 10:01:20,076 INFO L356 Elim1Store]: treesize reduction 15763, result has 11.5 percent of original size [2022-04-05 10:01:21,431 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 7 stores, 3 select indices, 3 select index equivalence classes, 22 disjoint index pairs (out of 3 index pairs), introduced 10 new quantified variables, introduced 21 case distinctions, treesize of input 3059461249852944398 treesize of output 1673620735560334835