/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.08.i.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05ce600 [2022-02-24 00:44:13,182 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-24 00:44:13,184 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-24 00:44:13,217 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-24 00:44:13,218 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-24 00:44:13,218 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-24 00:44:13,222 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-24 00:44:13,224 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-24 00:44:13,225 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-24 00:44:13,225 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-24 00:44:13,226 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-24 00:44:13,227 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-24 00:44:13,227 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-24 00:44:13,227 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-24 00:44:13,228 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-24 00:44:13,229 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-24 00:44:13,229 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-24 00:44:13,230 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-24 00:44:13,231 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-24 00:44:13,232 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-24 00:44:13,233 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-24 00:44:13,233 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-24 00:44:13,234 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-24 00:44:13,235 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-24 00:44:13,236 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-24 00:44:13,236 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-24 00:44:13,237 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-24 00:44:13,237 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-24 00:44:13,237 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-24 00:44:13,238 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2022-02-24 00:44:13,241 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-24 00:44:13,242 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-24 00:44:13,242 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-24 00:44:13,243 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/loopacceleration/qvasr/qvasr_64.epf [2022-02-24 00:44:13,270 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-24 00:44:13,270 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-24 00:44:13,271 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-24 00:44:13,271 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-24 00:44:13,272 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-24 00:44:13,272 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-24 00:44:13,272 INFO L138 SettingsManager]: * Use SBE=true [2022-02-24 00:44:13,272 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-24 00:44:13,272 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-24 00:44:13,272 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-24 00:44:13,273 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-24 00:44:13,273 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-24 00:44:13,273 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-24 00:44:13,273 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-24 00:44:13,273 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-24 00:44:13,273 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-24 00:44:13,273 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-24 00:44:13,274 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-24 00:44:13,274 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-24 00:44:13,274 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-24 00:44:13,274 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-24 00:44:13,274 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-24 00:44:13,274 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-24 00:44:13,274 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-24 00:44:13,275 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-24 00:44:13,275 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-24 00:44:13,275 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-02-24 00:44:13,275 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-02-24 00:44:13,276 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-24 00:44:13,276 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-02-24 00:44:13,452 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-24 00:44:13,468 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-24 00:44:13,470 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-24 00:44:13,471 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-24 00:44:13,472 INFO L275 PluginConnector]: CDTParser initialized [2022-02-24 00:44:13,473 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl/s3_srvr.blast.08.i.cil-1.c [2022-02-24 00:44:13,518 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/efb2d1647/ae5a02ec3997400584c8e24e0a32accc/FLAGd52900eb1 [2022-02-24 00:44:13,917 INFO L306 CDTParser]: Found 1 translation units. [2022-02-24 00:44:13,917 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.08.i.cil-1.c [2022-02-24 00:44:13,931 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/efb2d1647/ae5a02ec3997400584c8e24e0a32accc/FLAGd52900eb1 [2022-02-24 00:44:13,939 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/efb2d1647/ae5a02ec3997400584c8e24e0a32accc [2022-02-24 00:44:13,941 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-24 00:44:13,942 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-02-24 00:44:13,943 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-24 00:44:13,943 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-24 00:44:13,945 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-24 00:44:13,945 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 12:44:13" (1/1) ... [2022-02-24 00:44:13,946 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f58334b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:44:13, skipping insertion in model container [2022-02-24 00:44:13,946 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 12:44:13" (1/1) ... [2022-02-24 00:44:13,950 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-24 00:44:14,001 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-24 00:44:14,288 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.08.i.cil-1.c[74696,74709] [2022-02-24 00:44:14,295 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-24 00:44:14,302 INFO L203 MainTranslator]: Completed pre-run [2022-02-24 00:44:14,418 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.08.i.cil-1.c[74696,74709] [2022-02-24 00:44:14,429 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-24 00:44:14,441 INFO L208 MainTranslator]: Completed translation [2022-02-24 00:44:14,442 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:44:14 WrapperNode [2022-02-24 00:44:14,442 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-24 00:44:14,444 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-24 00:44:14,444 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-24 00:44:14,444 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-24 00:44:14,452 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:44:14" (1/1) ... [2022-02-24 00:44:14,452 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:44:14" (1/1) ... [2022-02-24 00:44:14,480 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:44:14" (1/1) ... [2022-02-24 00:44:14,480 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:44:14" (1/1) ... [2022-02-24 00:44:14,529 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:44:14" (1/1) ... [2022-02-24 00:44:14,535 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:44:14" (1/1) ... [2022-02-24 00:44:14,537 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:44:14" (1/1) ... [2022-02-24 00:44:14,541 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-24 00:44:14,541 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-24 00:44:14,541 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-24 00:44:14,541 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-24 00:44:14,542 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:44:14" (1/1) ... [2022-02-24 00:44:14,547 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-24 00:44:14,555 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-24 00:44:14,565 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) [2022-02-24 00:44:14,582 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 [2022-02-24 00:44:14,597 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-02-24 00:44:14,598 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-24 00:44:14,598 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-02-24 00:44:14,598 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_server_method [2022-02-24 00:44:14,598 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_server_method [2022-02-24 00:44:14,598 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-02-24 00:44:14,598 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-02-24 00:44:14,598 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-02-24 00:44:14,599 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-02-24 00:44:14,600 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-02-24 00:44:14,600 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-02-24 00:44:14,600 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-02-24 00:44:14,600 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-02-24 00:44:14,600 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-24 00:44:14,600 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-02-24 00:44:14,600 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-02-24 00:44:14,600 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-02-24 00:44:14,600 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-02-24 00:44:14,601 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-02-24 00:44:14,601 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-02-24 00:44:14,601 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_server_method [2022-02-24 00:44:14,601 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-02-24 00:44:14,601 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-02-24 00:44:14,601 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_server_method [2022-02-24 00:44:14,601 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-02-24 00:44:14,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-02-24 00:44:14,602 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-02-24 00:44:14,602 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-02-24 00:44:14,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-24 00:44:14,602 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-02-24 00:44:14,602 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-24 00:44:14,602 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-02-24 00:44:14,602 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-02-24 00:44:14,602 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-02-24 00:44:14,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-24 00:44:14,602 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-24 00:44:14,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-02-24 00:44:14,602 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-02-24 00:44:14,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-02-24 00:44:14,602 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-02-24 00:44:14,603 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-24 00:44:14,726 INFO L234 CfgBuilder]: Building ICFG [2022-02-24 00:44:14,732 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-24 00:44:15,762 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-02-24 00:44:16,162 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2022-02-24 00:44:16,163 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2022-02-24 00:44:16,172 INFO L275 CfgBuilder]: Performing block encoding [2022-02-24 00:44:16,180 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-24 00:44:16,180 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-02-24 00:44:16,183 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 12:44:16 BoogieIcfgContainer [2022-02-24 00:44:16,183 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-24 00:44:16,184 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-02-24 00:44:16,184 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-02-24 00:44:16,185 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-02-24 00:44:16,187 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 12:44:16" (1/1) ... [2022-02-24 00:44:16,226 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 24.02 12:44:16 BasicIcfg [2022-02-24 00:44:16,227 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-02-24 00:44:16,228 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-24 00:44:16,228 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-24 00:44:16,230 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-24 00:44:16,230 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.02 12:44:13" (1/4) ... [2022-02-24 00:44:16,231 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2eb36293 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 12:44:16, skipping insertion in model container [2022-02-24 00:44:16,231 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:44:14" (2/4) ... [2022-02-24 00:44:16,231 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2eb36293 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 12:44:16, skipping insertion in model container [2022-02-24 00:44:16,231 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 12:44:16" (3/4) ... [2022-02-24 00:44:16,231 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2eb36293 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.02 12:44:16, skipping insertion in model container [2022-02-24 00:44:16,231 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 24.02 12:44:16" (4/4) ... [2022-02-24 00:44:16,232 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr.blast.08.i.cil-1.cqvasr [2022-02-24 00:44:16,236 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-24 00:44:16,236 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-24 00:44:16,266 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-24 00:44:16,270 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2022-02-24 00:44:16,270 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-02-24 00:44:16,283 INFO L276 IsEmpty]: Start isEmpty. Operand has 159 states, 151 states have (on average 1.7086092715231789) internal successors, (258), 152 states have internal predecessors, (258), 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) [2022-02-24 00:44:16,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-02-24 00:44:16,289 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:44:16,289 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:44:16,290 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:44:16,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:44:16,293 INFO L85 PathProgramCache]: Analyzing trace with hash -1946519082, now seen corresponding path program 1 times [2022-02-24 00:44:16,299 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:44:16,299 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727156753] [2022-02-24 00:44:16,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:44:16,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:44:16,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:44:16,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:44:16,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:44:16,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 00:44:16,709 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:44:16,709 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727156753] [2022-02-24 00:44:16,710 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1727156753] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:44:16,710 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:44:16,710 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:44:16,711 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206847694] [2022-02-24 00:44:16,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:44:16,716 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:44:16,717 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:44:16,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:44:16,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:44:16,744 INFO L87 Difference]: Start difference. First operand has 159 states, 151 states have (on average 1.7086092715231789) internal successors, (258), 152 states have internal predecessors, (258), 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 9.2) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:44:19,896 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:44:20,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:44:20,399 INFO L93 Difference]: Finished difference Result 336 states and 564 transitions. [2022-02-24 00:44:20,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:44:20,401 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 50 [2022-02-24 00:44:20,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:44:20,407 INFO L225 Difference]: With dead ends: 336 [2022-02-24 00:44:20,407 INFO L226 Difference]: Without dead ends: 171 [2022-02-24 00:44:20,409 INFO L932 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 [2022-02-24 00:44:20,415 INFO L933 BasicCegarLoop]: 231 mSDtfsCounter, 34 mSDsluCounter, 382 mSDsCounter, 0 mSdLazyCounter, 417 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 613 SdHoareTripleChecker+Invalid, 428 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 417 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-02-24 00:44:20,419 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 613 Invalid, 428 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 417 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-02-24 00:44:20,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2022-02-24 00:44:20,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 154. [2022-02-24 00:44:20,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 149 states have (on average 1.5570469798657718) internal successors, (232), 149 states have internal predecessors, (232), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:44:20,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 236 transitions. [2022-02-24 00:44:20,466 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 236 transitions. Word has length 50 [2022-02-24 00:44:20,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:44:20,466 INFO L470 AbstractCegarLoop]: Abstraction has 154 states and 236 transitions. [2022-02-24 00:44:20,466 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:44:20,466 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 236 transitions. [2022-02-24 00:44:20,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-02-24 00:44:20,469 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:44:20,469 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:44:20,469 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-24 00:44:20,470 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:44:20,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:44:20,470 INFO L85 PathProgramCache]: Analyzing trace with hash 888216424, now seen corresponding path program 1 times [2022-02-24 00:44:20,470 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:44:20,470 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293725651] [2022-02-24 00:44:20,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:44:20,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:44:20,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:44:20,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:44:20,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:44:20,656 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 00:44:20,656 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:44:20,656 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293725651] [2022-02-24 00:44:20,656 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1293725651] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:44:20,656 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:44:20,657 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:44:20,657 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400757671] [2022-02-24 00:44:20,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:44:20,658 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:44:20,658 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:44:20,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:44:20,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:44:20,659 INFO L87 Difference]: Start difference. First operand 154 states and 236 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) [2022-02-24 00:44:23,213 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:44:25,592 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:44:26,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:44:26,180 INFO L93 Difference]: Finished difference Result 400 states and 618 transitions. [2022-02-24 00:44:26,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:44:26,181 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 [2022-02-24 00:44:26,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:44:26,182 INFO L225 Difference]: With dead ends: 400 [2022-02-24 00:44:26,183 INFO L226 Difference]: Without dead ends: 272 [2022-02-24 00:44:26,183 INFO L932 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 [2022-02-24 00:44:26,184 INFO L933 BasicCegarLoop]: 263 mSDtfsCounter, 145 mSDsluCounter, 373 mSDsCounter, 0 mSdLazyCounter, 626 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 636 SdHoareTripleChecker+Invalid, 672 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 626 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-02-24 00:44:26,184 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [145 Valid, 636 Invalid, 672 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 626 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2022-02-24 00:44:26,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2022-02-24 00:44:26,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 170. [2022-02-24 00:44:26,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 165 states have (on average 1.5575757575757576) internal successors, (257), 165 states have internal predecessors, (257), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:44:26,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 261 transitions. [2022-02-24 00:44:26,194 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 261 transitions. Word has length 63 [2022-02-24 00:44:26,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:44:26,194 INFO L470 AbstractCegarLoop]: Abstraction has 170 states and 261 transitions. [2022-02-24 00:44:26,194 INFO L471 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) [2022-02-24 00:44:26,195 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 261 transitions. [2022-02-24 00:44:26,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-02-24 00:44:26,196 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:44:26,196 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:44:26,196 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-24 00:44:26,196 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:44:26,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:44:26,197 INFO L85 PathProgramCache]: Analyzing trace with hash -1909217456, now seen corresponding path program 1 times [2022-02-24 00:44:26,197 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:44:26,197 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119780866] [2022-02-24 00:44:26,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:44:26,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:44:26,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:44:26,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:44:26,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:44:26,328 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 00:44:26,328 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:44:26,328 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119780866] [2022-02-24 00:44:26,328 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [119780866] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:44:26,329 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:44:26,329 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:44:26,329 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801490001] [2022-02-24 00:44:26,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:44:26,330 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:44:26,330 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:44:26,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:44:26,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:44:26,330 INFO L87 Difference]: Start difference. First operand 170 states and 261 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) [2022-02-24 00:44:29,189 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:44:30,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:44:30,013 INFO L93 Difference]: Finished difference Result 431 states and 668 transitions. [2022-02-24 00:44:30,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:44:30,014 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 [2022-02-24 00:44:30,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:44:30,016 INFO L225 Difference]: With dead ends: 431 [2022-02-24 00:44:30,016 INFO L226 Difference]: Without dead ends: 287 [2022-02-24 00:44:30,017 INFO L932 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 [2022-02-24 00:44:30,017 INFO L933 BasicCegarLoop]: 120 mSDtfsCounter, 150 mSDsluCounter, 230 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 350 SdHoareTripleChecker+Invalid, 540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-02-24 00:44:30,017 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [150 Valid, 350 Invalid, 540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 477 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-02-24 00:44:30,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2022-02-24 00:44:30,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 181. [2022-02-24 00:44:30,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 176 states have (on average 1.5397727272727273) internal successors, (271), 176 states have internal predecessors, (271), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:44:30,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 275 transitions. [2022-02-24 00:44:30,025 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 275 transitions. Word has length 64 [2022-02-24 00:44:30,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:44:30,025 INFO L470 AbstractCegarLoop]: Abstraction has 181 states and 275 transitions. [2022-02-24 00:44:30,026 INFO L471 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) [2022-02-24 00:44:30,026 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 275 transitions. [2022-02-24 00:44:30,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-02-24 00:44:30,027 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:44:30,027 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:44:30,027 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-02-24 00:44:30,027 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:44:30,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:44:30,028 INFO L85 PathProgramCache]: Analyzing trace with hash 1031303024, now seen corresponding path program 1 times [2022-02-24 00:44:30,028 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:44:30,028 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594585640] [2022-02-24 00:44:30,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:44:30,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:44:30,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:44:30,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:44:30,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:44:30,183 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 00:44:30,183 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:44:30,186 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1594585640] [2022-02-24 00:44:30,186 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1594585640] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:44:30,186 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:44:30,186 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:44:30,187 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956288048] [2022-02-24 00:44:30,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:44:30,187 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:44:30,188 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:44:30,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:44:30,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:44:30,188 INFO L87 Difference]: Start difference. First operand 181 states and 275 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) [2022-02-24 00:44:31,981 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 [] [2022-02-24 00:44:34,056 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 [] [2022-02-24 00:44:34,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:44:34,374 INFO L93 Difference]: Finished difference Result 352 states and 534 transitions. [2022-02-24 00:44:34,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:44:34,374 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 [2022-02-24 00:44:34,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:44:34,375 INFO L225 Difference]: With dead ends: 352 [2022-02-24 00:44:34,376 INFO L226 Difference]: Without dead ends: 197 [2022-02-24 00:44:34,376 INFO L932 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 [2022-02-24 00:44:34,377 INFO L933 BasicCegarLoop]: 190 mSDtfsCounter, 26 mSDsluCounter, 301 mSDsCounter, 0 mSdLazyCounter, 364 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 491 SdHoareTripleChecker+Invalid, 373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 364 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-02-24 00:44:34,377 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [26 Valid, 491 Invalid, 373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 364 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2022-02-24 00:44:34,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2022-02-24 00:44:34,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 181. [2022-02-24 00:44:34,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 176 states have (on average 1.5340909090909092) internal successors, (270), 176 states have internal predecessors, (270), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:44:34,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 274 transitions. [2022-02-24 00:44:34,386 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 274 transitions. Word has length 64 [2022-02-24 00:44:34,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:44:34,386 INFO L470 AbstractCegarLoop]: Abstraction has 181 states and 274 transitions. [2022-02-24 00:44:34,386 INFO L471 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) [2022-02-24 00:44:34,386 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 274 transitions. [2022-02-24 00:44:34,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-02-24 00:44:34,387 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:44:34,387 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:44:34,387 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-02-24 00:44:34,388 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:44:34,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:44:34,388 INFO L85 PathProgramCache]: Analyzing trace with hash -1335121200, now seen corresponding path program 1 times [2022-02-24 00:44:34,388 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:44:34,388 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983358682] [2022-02-24 00:44:34,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:44:34,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:44:34,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:44:34,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:44:34,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:44:34,500 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 00:44:34,500 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:44:34,500 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1983358682] [2022-02-24 00:44:34,500 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1983358682] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:44:34,500 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:44:34,500 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:44:34,500 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226738106] [2022-02-24 00:44:34,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:44:34,501 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:44:34,501 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:44:34,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:44:34,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:44:34,502 INFO L87 Difference]: Start difference. First operand 181 states and 274 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) [2022-02-24 00:44:36,511 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 [] [2022-02-24 00:44:36,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:44:36,929 INFO L93 Difference]: Finished difference Result 351 states and 532 transitions. [2022-02-24 00:44:36,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:44:36,929 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 [2022-02-24 00:44:36,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:44:36,930 INFO L225 Difference]: With dead ends: 351 [2022-02-24 00:44:36,930 INFO L226 Difference]: Without dead ends: 196 [2022-02-24 00:44:36,931 INFO L932 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 [2022-02-24 00:44:36,931 INFO L933 BasicCegarLoop]: 191 mSDtfsCounter, 19 mSDsluCounter, 302 mSDsCounter, 0 mSdLazyCounter, 358 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 493 SdHoareTripleChecker+Invalid, 368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 358 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-24 00:44:36,931 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 493 Invalid, 368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 358 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-24 00:44:36,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2022-02-24 00:44:36,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 181. [2022-02-24 00:44:36,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 176 states have (on average 1.5284090909090908) internal successors, (269), 176 states have internal predecessors, (269), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:44:36,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 273 transitions. [2022-02-24 00:44:36,937 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 273 transitions. Word has length 64 [2022-02-24 00:44:36,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:44:36,937 INFO L470 AbstractCegarLoop]: Abstraction has 181 states and 273 transitions. [2022-02-24 00:44:36,937 INFO L471 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) [2022-02-24 00:44:36,937 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 273 transitions. [2022-02-24 00:44:36,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-02-24 00:44:36,938 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:44:36,939 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:44:36,939 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-02-24 00:44:36,939 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:44:36,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:44:36,939 INFO L85 PathProgramCache]: Analyzing trace with hash -25859152, now seen corresponding path program 1 times [2022-02-24 00:44:36,939 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:44:36,939 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1331127376] [2022-02-24 00:44:36,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:44:36,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:44:37,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:44:37,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:44:37,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:44:37,065 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 00:44:37,065 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:44:37,065 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1331127376] [2022-02-24 00:44:37,067 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1331127376] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:44:37,067 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:44:37,068 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:44:37,068 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742409612] [2022-02-24 00:44:37,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:44:37,068 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:44:37,068 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:44:37,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:44:37,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:44:37,070 INFO L87 Difference]: Start difference. First operand 181 states and 273 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) [2022-02-24 00:44:39,082 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 [] [2022-02-24 00:44:39,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:44:39,546 INFO L93 Difference]: Finished difference Result 442 states and 678 transitions. [2022-02-24 00:44:39,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:44:39,546 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 [2022-02-24 00:44:39,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:44:39,547 INFO L225 Difference]: With dead ends: 442 [2022-02-24 00:44:39,548 INFO L226 Difference]: Without dead ends: 287 [2022-02-24 00:44:39,548 INFO L932 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 [2022-02-24 00:44:39,549 INFO L933 BasicCegarLoop]: 120 mSDtfsCounter, 143 mSDsluCounter, 230 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 63 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 350 SdHoareTripleChecker+Invalid, 537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-24 00:44:39,549 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [143 Valid, 350 Invalid, 537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 473 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-24 00:44:39,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2022-02-24 00:44:39,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 187. [2022-02-24 00:44:39,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 182 states have (on average 1.532967032967033) internal successors, (279), 182 states have internal predecessors, (279), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:44:39,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 283 transitions. [2022-02-24 00:44:39,554 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 283 transitions. Word has length 64 [2022-02-24 00:44:39,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:44:39,554 INFO L470 AbstractCegarLoop]: Abstraction has 187 states and 283 transitions. [2022-02-24 00:44:39,555 INFO L471 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) [2022-02-24 00:44:39,555 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 283 transitions. [2022-02-24 00:44:39,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-02-24 00:44:39,560 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:44:39,560 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:44:39,560 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-02-24 00:44:39,560 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:44:39,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:44:39,560 INFO L85 PathProgramCache]: Analyzing trace with hash 1757731560, now seen corresponding path program 1 times [2022-02-24 00:44:39,560 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:44:39,561 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558730908] [2022-02-24 00:44:39,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:44:39,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:44:39,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:44:39,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:44:39,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:44:39,680 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 00:44:39,680 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:44:39,681 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558730908] [2022-02-24 00:44:39,681 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1558730908] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:44:39,681 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:44:39,681 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:44:39,681 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769327583] [2022-02-24 00:44:39,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:44:39,682 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:44:39,682 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:44:39,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:44:39,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:44:39,682 INFO L87 Difference]: Start difference. First operand 187 states and 283 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) [2022-02-24 00:44:42,600 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 [] [2022-02-24 00:44:44,625 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 [] [2022-02-24 00:44:44,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:44:44,949 INFO L93 Difference]: Finished difference Result 361 states and 550 transitions. [2022-02-24 00:44:44,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:44:44,950 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 [2022-02-24 00:44:44,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:44:44,951 INFO L225 Difference]: With dead ends: 361 [2022-02-24 00:44:44,951 INFO L226 Difference]: Without dead ends: 200 [2022-02-24 00:44:44,951 INFO L932 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 [2022-02-24 00:44:44,952 INFO L933 BasicCegarLoop]: 193 mSDtfsCounter, 22 mSDsluCounter, 304 mSDsCounter, 0 mSdLazyCounter, 356 mSolverCounterSat, 8 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 497 SdHoareTripleChecker+Invalid, 366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 356 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-02-24 00:44:44,952 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 497 Invalid, 366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 356 Invalid, 2 Unknown, 0 Unchecked, 5.2s Time] [2022-02-24 00:44:44,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2022-02-24 00:44:44,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 187. [2022-02-24 00:44:44,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 182 states have (on average 1.5274725274725274) internal successors, (278), 182 states have internal predecessors, (278), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:44:44,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 282 transitions. [2022-02-24 00:44:44,957 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 282 transitions. Word has length 65 [2022-02-24 00:44:44,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:44:44,957 INFO L470 AbstractCegarLoop]: Abstraction has 187 states and 282 transitions. [2022-02-24 00:44:44,957 INFO L471 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) [2022-02-24 00:44:44,957 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 282 transitions. [2022-02-24 00:44:44,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-02-24 00:44:44,958 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:44:44,958 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:44:44,958 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-02-24 00:44:44,958 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:44:44,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:44:44,958 INFO L85 PathProgramCache]: Analyzing trace with hash 2096002932, now seen corresponding path program 1 times [2022-02-24 00:44:44,958 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:44:44,959 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015593223] [2022-02-24 00:44:44,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:44:44,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:44:45,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:44:45,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:44:45,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:44:45,098 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 00:44:45,098 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:44:45,099 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1015593223] [2022-02-24 00:44:45,099 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1015593223] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:44:45,099 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:44:45,099 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:44:45,099 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639771729] [2022-02-24 00:44:45,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:44:45,099 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:44:45,099 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:44:45,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:44:45,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:44:45,100 INFO L87 Difference]: Start difference. First operand 187 states and 282 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) [2022-02-24 00:44:47,108 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 [] [2022-02-24 00:44:47,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:44:47,438 INFO L93 Difference]: Finished difference Result 361 states and 549 transitions. [2022-02-24 00:44:47,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:44:47,438 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 [2022-02-24 00:44:47,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:44:47,439 INFO L225 Difference]: With dead ends: 361 [2022-02-24 00:44:47,439 INFO L226 Difference]: Without dead ends: 200 [2022-02-24 00:44:47,439 INFO L932 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 [2022-02-24 00:44:47,440 INFO L933 BasicCegarLoop]: 193 mSDtfsCounter, 20 mSDsluCounter, 304 mSDsCounter, 0 mSdLazyCounter, 354 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 497 SdHoareTripleChecker+Invalid, 363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 354 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-02-24 00:44:47,440 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 497 Invalid, 363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 354 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-02-24 00:44:47,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2022-02-24 00:44:47,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 187. [2022-02-24 00:44:47,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 182 states have (on average 1.521978021978022) internal successors, (277), 182 states have internal predecessors, (277), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:44:47,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 281 transitions. [2022-02-24 00:44:47,444 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 281 transitions. Word has length 66 [2022-02-24 00:44:47,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:44:47,445 INFO L470 AbstractCegarLoop]: Abstraction has 187 states and 281 transitions. [2022-02-24 00:44:47,445 INFO L471 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) [2022-02-24 00:44:47,445 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 281 transitions. [2022-02-24 00:44:47,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-02-24 00:44:47,445 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:44:47,445 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:44:47,446 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-02-24 00:44:47,446 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:44:47,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:44:47,446 INFO L85 PathProgramCache]: Analyzing trace with hash 1315364651, now seen corresponding path program 1 times [2022-02-24 00:44:47,446 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:44:47,446 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676842212] [2022-02-24 00:44:47,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:44:47,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:44:47,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:44:47,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:44:47,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:44:47,538 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 00:44:47,538 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:44:47,538 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [676842212] [2022-02-24 00:44:47,538 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [676842212] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:44:47,538 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:44:47,538 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:44:47,538 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062275133] [2022-02-24 00:44:47,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:44:47,539 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:44:47,539 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:44:47,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:44:47,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:44:47,539 INFO L87 Difference]: Start difference. First operand 187 states and 281 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) [2022-02-24 00:44:49,547 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 [] [2022-02-24 00:44:49,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:44:49,981 INFO L93 Difference]: Finished difference Result 448 states and 685 transitions. [2022-02-24 00:44:49,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:44:49,982 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 [2022-02-24 00:44:49,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:44:49,983 INFO L225 Difference]: With dead ends: 448 [2022-02-24 00:44:49,983 INFO L226 Difference]: Without dead ends: 287 [2022-02-24 00:44:49,984 INFO L932 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 [2022-02-24 00:44:49,984 INFO L933 BasicCegarLoop]: 120 mSDtfsCounter, 144 mSDsluCounter, 230 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 63 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 350 SdHoareTripleChecker+Invalid, 537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-24 00:44:49,984 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [144 Valid, 350 Invalid, 537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 473 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-24 00:44:49,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2022-02-24 00:44:49,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 187. [2022-02-24 00:44:49,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 182 states have (on average 1.5054945054945055) internal successors, (274), 182 states have internal predecessors, (274), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:44:49,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 278 transitions. [2022-02-24 00:44:49,989 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 278 transitions. Word has length 67 [2022-02-24 00:44:49,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:44:49,989 INFO L470 AbstractCegarLoop]: Abstraction has 187 states and 278 transitions. [2022-02-24 00:44:49,990 INFO L471 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) [2022-02-24 00:44:49,990 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 278 transitions. [2022-02-24 00:44:49,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-02-24 00:44:49,990 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:44:49,990 INFO L514 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] [2022-02-24 00:44:49,990 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-02-24 00:44:49,990 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:44:49,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:44:49,991 INFO L85 PathProgramCache]: Analyzing trace with hash 972914138, now seen corresponding path program 1 times [2022-02-24 00:44:49,991 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:44:49,991 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828377679] [2022-02-24 00:44:49,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:44:49,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:44:50,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:44:50,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:44:50,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:44:50,101 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 00:44:50,102 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:44:50,102 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828377679] [2022-02-24 00:44:50,102 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [828377679] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:44:50,102 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:44:50,102 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:44:50,102 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957323493] [2022-02-24 00:44:50,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:44:50,107 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:44:50,107 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:44:50,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:44:50,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:44:50,108 INFO L87 Difference]: Start difference. First operand 187 states and 278 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) [2022-02-24 00:44:51,516 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 [] [2022-02-24 00:44:53,227 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:44:55,251 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:44:56,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:44:56,229 INFO L93 Difference]: Finished difference Result 388 states and 585 transitions. [2022-02-24 00:44:56,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:44:56,230 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 [2022-02-24 00:44:56,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:44:56,231 INFO L225 Difference]: With dead ends: 388 [2022-02-24 00:44:56,231 INFO L226 Difference]: Without dead ends: 227 [2022-02-24 00:44:56,231 INFO L932 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 [2022-02-24 00:44:56,232 INFO L933 BasicCegarLoop]: 199 mSDtfsCounter, 30 mSDsluCounter, 316 mSDsCounter, 0 mSdLazyCounter, 393 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 515 SdHoareTripleChecker+Invalid, 403 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 393 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-02-24 00:44:56,232 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 515 Invalid, 403 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 393 Invalid, 1 Unknown, 0 Unchecked, 6.1s Time] [2022-02-24 00:44:56,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2022-02-24 00:44:56,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 209. [2022-02-24 00:44:56,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 204 states have (on average 1.5098039215686274) internal successors, (308), 204 states have internal predecessors, (308), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:44:56,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 312 transitions. [2022-02-24 00:44:56,237 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 312 transitions. Word has length 67 [2022-02-24 00:44:56,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:44:56,237 INFO L470 AbstractCegarLoop]: Abstraction has 209 states and 312 transitions. [2022-02-24 00:44:56,237 INFO L471 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) [2022-02-24 00:44:56,237 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 312 transitions. [2022-02-24 00:44:56,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-02-24 00:44:56,238 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:44:56,238 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:44:56,238 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-02-24 00:44:56,238 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:44:56,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:44:56,238 INFO L85 PathProgramCache]: Analyzing trace with hash 2136087668, now seen corresponding path program 1 times [2022-02-24 00:44:56,238 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:44:56,238 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131599393] [2022-02-24 00:44:56,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:44:56,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:44:56,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:44:56,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:44:56,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:44:56,336 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-02-24 00:44:56,336 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:44:56,336 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2131599393] [2022-02-24 00:44:56,336 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2131599393] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:44:56,336 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:44:56,337 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:44:56,337 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532393994] [2022-02-24 00:44:56,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:44:56,337 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:44:56,337 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:44:56,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:44:56,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:44:56,338 INFO L87 Difference]: Start difference. First operand 209 states and 312 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:44:58,341 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:45:00,280 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:45:01,851 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:45:02,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:45:02,205 INFO L93 Difference]: Finished difference Result 404 states and 609 transitions. [2022-02-24 00:45:02,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:45:02,205 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 81 [2022-02-24 00:45:02,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:45:02,207 INFO L225 Difference]: With dead ends: 404 [2022-02-24 00:45:02,207 INFO L226 Difference]: Without dead ends: 221 [2022-02-24 00:45:02,207 INFO L932 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 [2022-02-24 00:45:02,208 INFO L933 BasicCegarLoop]: 230 mSDtfsCounter, 20 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 396 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 576 SdHoareTripleChecker+Invalid, 405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 396 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-02-24 00:45:02,208 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 576 Invalid, 405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 396 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2022-02-24 00:45:02,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2022-02-24 00:45:02,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 209. [2022-02-24 00:45:02,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 204 states have (on average 1.5049019607843137) internal successors, (307), 204 states have internal predecessors, (307), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:45:02,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 311 transitions. [2022-02-24 00:45:02,212 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 311 transitions. Word has length 81 [2022-02-24 00:45:02,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:45:02,212 INFO L470 AbstractCegarLoop]: Abstraction has 209 states and 311 transitions. [2022-02-24 00:45:02,213 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:45:02,213 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 311 transitions. [2022-02-24 00:45:02,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-02-24 00:45:02,213 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:45:02,213 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:45:02,213 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-02-24 00:45:02,213 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:45:02,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:45:02,214 INFO L85 PathProgramCache]: Analyzing trace with hash -230336556, now seen corresponding path program 1 times [2022-02-24 00:45:02,214 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:45:02,214 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417852589] [2022-02-24 00:45:02,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:45:02,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:45:02,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:45:02,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:45:02,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:45:02,333 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 00:45:02,333 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:45:02,333 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1417852589] [2022-02-24 00:45:02,334 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1417852589] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:45:02,334 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:45:02,334 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:45:02,334 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598591324] [2022-02-24 00:45:02,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:45:02,334 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:45:02,334 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:45:02,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:45:02,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:45:02,335 INFO L87 Difference]: Start difference. First operand 209 states and 311 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:45:04,109 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 [] [2022-02-24 00:45:06,131 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:45:08,155 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:45:08,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:45:08,594 INFO L93 Difference]: Finished difference Result 491 states and 745 transitions. [2022-02-24 00:45:08,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:45:08,595 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 81 [2022-02-24 00:45:08,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:45:08,596 INFO L225 Difference]: With dead ends: 491 [2022-02-24 00:45:08,596 INFO L226 Difference]: Without dead ends: 308 [2022-02-24 00:45:08,596 INFO L932 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 [2022-02-24 00:45:08,597 INFO L933 BasicCegarLoop]: 121 mSDtfsCounter, 141 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 62 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-02-24 00:45:08,597 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [141 Valid, 352 Invalid, 537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 473 Invalid, 2 Unknown, 0 Unchecked, 6.2s Time] [2022-02-24 00:45:08,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308 states. [2022-02-24 00:45:08,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 210. [2022-02-24 00:45:08,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 205 states have (on average 1.497560975609756) internal successors, (307), 205 states have internal predecessors, (307), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:45:08,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 311 transitions. [2022-02-24 00:45:08,602 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 311 transitions. Word has length 81 [2022-02-24 00:45:08,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:45:08,602 INFO L470 AbstractCegarLoop]: Abstraction has 210 states and 311 transitions. [2022-02-24 00:45:08,602 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:45:08,602 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 311 transitions. [2022-02-24 00:45:08,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-02-24 00:45:08,603 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:45:08,603 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:45:08,603 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-02-24 00:45:08,603 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:45:08,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:45:08,603 INFO L85 PathProgramCache]: Analyzing trace with hash 22437823, now seen corresponding path program 1 times [2022-02-24 00:45:08,603 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:45:08,603 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990330814] [2022-02-24 00:45:08,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:45:08,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:45:08,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:45:08,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:45:08,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:45:08,690 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 00:45:08,690 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:45:08,690 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [990330814] [2022-02-24 00:45:08,690 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [990330814] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:45:08,690 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:45:08,690 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:45:08,690 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928551945] [2022-02-24 00:45:08,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:45:08,691 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:45:08,691 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:45:08,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:45:08,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:45:08,691 INFO L87 Difference]: Start difference. First operand 210 states and 311 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:45:10,196 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:45:12,017 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:45:14,041 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:45:15,227 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:45:15,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:45:15,551 INFO L93 Difference]: Finished difference Result 411 states and 615 transitions. [2022-02-24 00:45:15,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:45:15,551 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 82 [2022-02-24 00:45:15,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:45:15,552 INFO L225 Difference]: With dead ends: 411 [2022-02-24 00:45:15,552 INFO L226 Difference]: Without dead ends: 227 [2022-02-24 00:45:15,552 INFO L932 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 [2022-02-24 00:45:15,553 INFO L933 BasicCegarLoop]: 201 mSDtfsCounter, 38 mSDsluCounter, 316 mSDsCounter, 0 mSdLazyCounter, 390 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 517 SdHoareTripleChecker+Invalid, 400 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 390 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2022-02-24 00:45:15,554 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 517 Invalid, 400 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 390 Invalid, 1 Unknown, 0 Unchecked, 6.8s Time] [2022-02-24 00:45:15,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2022-02-24 00:45:15,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 210. [2022-02-24 00:45:15,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 205 states have (on average 1.4926829268292683) internal successors, (306), 205 states have internal predecessors, (306), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:45:15,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 310 transitions. [2022-02-24 00:45:15,558 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 310 transitions. Word has length 82 [2022-02-24 00:45:15,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:45:15,558 INFO L470 AbstractCegarLoop]: Abstraction has 210 states and 310 transitions. [2022-02-24 00:45:15,558 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:45:15,558 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 310 transitions. [2022-02-24 00:45:15,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-02-24 00:45:15,558 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:45:15,559 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:45:15,559 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-02-24 00:45:15,559 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:45:15,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:45:15,559 INFO L85 PathProgramCache]: Analyzing trace with hash 2019421135, now seen corresponding path program 1 times [2022-02-24 00:45:15,559 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:45:15,559 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1156158599] [2022-02-24 00:45:15,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:45:15,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:45:15,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:45:15,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:45:15,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:45:15,673 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 00:45:15,673 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:45:15,673 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1156158599] [2022-02-24 00:45:15,673 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1156158599] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:45:15,673 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:45:15,673 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:45:15,673 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469783301] [2022-02-24 00:45:15,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:45:15,674 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:45:15,674 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:45:15,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:45:15,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:45:15,675 INFO L87 Difference]: Start difference. First operand 210 states and 310 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) [2022-02-24 00:45:18,428 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:45:20,450 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:45:22,473 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:45:22,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:45:22,795 INFO L93 Difference]: Finished difference Result 411 states and 613 transitions. [2022-02-24 00:45:22,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:45:22,796 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 83 [2022-02-24 00:45:22,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:45:22,797 INFO L225 Difference]: With dead ends: 411 [2022-02-24 00:45:22,797 INFO L226 Difference]: Without dead ends: 227 [2022-02-24 00:45:22,797 INFO L932 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 [2022-02-24 00:45:22,798 INFO L933 BasicCegarLoop]: 201 mSDtfsCounter, 36 mSDsluCounter, 316 mSDsCounter, 0 mSdLazyCounter, 388 mSolverCounterSat, 9 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 517 SdHoareTripleChecker+Invalid, 400 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 388 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2022-02-24 00:45:22,798 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 517 Invalid, 400 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 388 Invalid, 3 Unknown, 0 Unchecked, 7.1s Time] [2022-02-24 00:45:22,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2022-02-24 00:45:22,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 210. [2022-02-24 00:45:22,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 205 states have (on average 1.4878048780487805) internal successors, (305), 205 states have internal predecessors, (305), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:45:22,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 309 transitions. [2022-02-24 00:45:22,802 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 309 transitions. Word has length 83 [2022-02-24 00:45:22,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:45:22,802 INFO L470 AbstractCegarLoop]: Abstraction has 210 states and 309 transitions. [2022-02-24 00:45:22,802 INFO L471 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) [2022-02-24 00:45:22,802 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 309 transitions. [2022-02-24 00:45:22,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-02-24 00:45:22,803 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:45:22,803 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:45:22,803 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-02-24 00:45:22,803 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:45:22,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:45:22,804 INFO L85 PathProgramCache]: Analyzing trace with hash -915248837, now seen corresponding path program 1 times [2022-02-24 00:45:22,804 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:45:22,804 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746820667] [2022-02-24 00:45:22,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:45:22,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:45:22,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:45:22,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:45:22,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:45:22,890 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 00:45:22,890 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:45:22,890 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1746820667] [2022-02-24 00:45:22,890 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1746820667] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:45:22,890 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:45:22,890 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:45:22,890 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851573766] [2022-02-24 00:45:22,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:45:22,891 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:45:22,891 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:45:22,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:45:22,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:45:22,891 INFO L87 Difference]: Start difference. First operand 210 states and 309 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) [2022-02-24 00:45:26,601 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 [] [2022-02-24 00:45:27,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:45:27,014 INFO L93 Difference]: Finished difference Result 492 states and 739 transitions. [2022-02-24 00:45:27,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:45:27,015 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 84 [2022-02-24 00:45:27,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:45:27,016 INFO L225 Difference]: With dead ends: 492 [2022-02-24 00:45:27,016 INFO L226 Difference]: Without dead ends: 308 [2022-02-24 00:45:27,016 INFO L932 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 [2022-02-24 00:45:27,017 INFO L933 BasicCegarLoop]: 121 mSDtfsCounter, 144 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 474 mSolverCounterSat, 62 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 474 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-02-24 00:45:27,017 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [144 Valid, 352 Invalid, 537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 474 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2022-02-24 00:45:27,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308 states. [2022-02-24 00:45:27,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 210. [2022-02-24 00:45:27,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 205 states have (on average 1.473170731707317) internal successors, (302), 205 states have internal predecessors, (302), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:45:27,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 306 transitions. [2022-02-24 00:45:27,022 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 306 transitions. Word has length 84 [2022-02-24 00:45:27,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:45:27,023 INFO L470 AbstractCegarLoop]: Abstraction has 210 states and 306 transitions. [2022-02-24 00:45:27,023 INFO L471 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) [2022-02-24 00:45:27,023 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 306 transitions. [2022-02-24 00:45:27,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-02-24 00:45:27,023 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:45:27,023 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:45:27,024 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-02-24 00:45:27,024 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:45:27,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:45:27,024 INFO L85 PathProgramCache]: Analyzing trace with hash 733553435, now seen corresponding path program 1 times [2022-02-24 00:45:27,024 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:45:27,024 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115955197] [2022-02-24 00:45:27,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:45:27,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:45:27,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:45:27,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:45:27,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:45:27,167 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-02-24 00:45:27,167 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:45:27,167 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2115955197] [2022-02-24 00:45:27,168 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2115955197] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:45:27,168 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:45:27,168 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:45:27,168 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673578422] [2022-02-24 00:45:27,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:45:27,169 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:45:27,169 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:45:27,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:45:27,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:45:27,169 INFO L87 Difference]: Start difference. First operand 210 states and 306 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:45:29,641 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:45:31,606 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.97s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:45:32,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:45:32,715 INFO L93 Difference]: Finished difference Result 498 states and 739 transitions. [2022-02-24 00:45:32,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:45:32,715 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 89 [2022-02-24 00:45:32,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:45:32,716 INFO L225 Difference]: With dead ends: 498 [2022-02-24 00:45:32,716 INFO L226 Difference]: Without dead ends: 314 [2022-02-24 00:45:32,717 INFO L932 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 [2022-02-24 00:45:32,717 INFO L933 BasicCegarLoop]: 187 mSDtfsCounter, 91 mSDsluCounter, 304 mSDsCounter, 0 mSdLazyCounter, 530 mSolverCounterSat, 13 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 491 SdHoareTripleChecker+Invalid, 544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 530 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-02-24 00:45:32,717 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [91 Valid, 491 Invalid, 544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 530 Invalid, 1 Unknown, 0 Unchecked, 5.5s Time] [2022-02-24 00:45:32,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2022-02-24 00:45:32,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 251. [2022-02-24 00:45:32,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 251 states, 246 states have (on average 1.5040650406504066) internal successors, (370), 246 states have internal predecessors, (370), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:45:32,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 374 transitions. [2022-02-24 00:45:32,722 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 374 transitions. Word has length 89 [2022-02-24 00:45:32,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:45:32,722 INFO L470 AbstractCegarLoop]: Abstraction has 251 states and 374 transitions. [2022-02-24 00:45:32,722 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:45:32,723 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 374 transitions. [2022-02-24 00:45:32,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-02-24 00:45:32,723 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:45:32,723 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:45:32,723 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-02-24 00:45:32,723 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:45:32,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:45:32,724 INFO L85 PathProgramCache]: Analyzing trace with hash -1202106852, now seen corresponding path program 1 times [2022-02-24 00:45:32,724 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:45:32,724 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602320737] [2022-02-24 00:45:32,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:45:32,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:45:32,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:45:32,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:45:32,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:45:32,823 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-02-24 00:45:32,823 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:45:32,823 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602320737] [2022-02-24 00:45:32,823 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [602320737] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:45:32,823 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:45:32,823 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:45:32,823 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609517681] [2022-02-24 00:45:32,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:45:32,823 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:45:32,824 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:45:32,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:45:32,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:45:32,824 INFO L87 Difference]: Start difference. First operand 251 states and 374 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:45:35,369 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:45:37,395 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:45:39,305 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:45:39,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:45:39,739 INFO L93 Difference]: Finished difference Result 593 states and 895 transitions. [2022-02-24 00:45:39,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:45:39,739 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 89 [2022-02-24 00:45:39,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:45:39,740 INFO L225 Difference]: With dead ends: 593 [2022-02-24 00:45:39,740 INFO L226 Difference]: Without dead ends: 368 [2022-02-24 00:45:39,741 INFO L932 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 [2022-02-24 00:45:39,741 INFO L933 BasicCegarLoop]: 122 mSDtfsCounter, 118 mSDsluCounter, 232 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 58 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 354 SdHoareTripleChecker+Invalid, 537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2022-02-24 00:45:39,742 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [118 Valid, 354 Invalid, 537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 477 Invalid, 2 Unknown, 0 Unchecked, 6.9s Time] [2022-02-24 00:45:39,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 368 states. [2022-02-24 00:45:39,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 368 to 250. [2022-02-24 00:45:39,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 250 states, 245 states have (on average 1.506122448979592) internal successors, (369), 245 states have internal predecessors, (369), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:45:39,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 373 transitions. [2022-02-24 00:45:39,751 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 373 transitions. Word has length 89 [2022-02-24 00:45:39,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:45:39,751 INFO L470 AbstractCegarLoop]: Abstraction has 250 states and 373 transitions. [2022-02-24 00:45:39,751 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:45:39,751 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 373 transitions. [2022-02-24 00:45:39,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-02-24 00:45:39,752 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:45:39,752 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:45:39,752 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-02-24 00:45:39,752 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:45:39,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:45:39,753 INFO L85 PathProgramCache]: Analyzing trace with hash -2117392348, now seen corresponding path program 1 times [2022-02-24 00:45:39,753 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:45:39,753 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463042116] [2022-02-24 00:45:39,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:45:39,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:45:39,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:45:39,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:45:39,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:45:39,842 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-02-24 00:45:39,843 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:45:39,843 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [463042116] [2022-02-24 00:45:39,843 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [463042116] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:45:39,843 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:45:39,843 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:45:39,843 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493447486] [2022-02-24 00:45:39,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:45:39,843 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:45:39,843 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:45:39,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:45:39,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:45:39,844 INFO L87 Difference]: Start difference. First operand 250 states and 373 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:45:42,948 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 [] [2022-02-24 00:45:44,969 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 [] [2022-02-24 00:45:45,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:45:45,391 INFO L93 Difference]: Finished difference Result 570 states and 861 transitions. [2022-02-24 00:45:45,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:45:45,391 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 90 [2022-02-24 00:45:45,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:45:45,392 INFO L225 Difference]: With dead ends: 570 [2022-02-24 00:45:45,393 INFO L226 Difference]: Without dead ends: 346 [2022-02-24 00:45:45,393 INFO L932 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 [2022-02-24 00:45:45,393 INFO L933 BasicCegarLoop]: 179 mSDtfsCounter, 80 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 512 mSolverCounterSat, 13 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 475 SdHoareTripleChecker+Invalid, 526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 512 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-02-24 00:45:45,393 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [80 Valid, 475 Invalid, 526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 512 Invalid, 1 Unknown, 0 Unchecked, 5.5s Time] [2022-02-24 00:45:45,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2022-02-24 00:45:45,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 292. [2022-02-24 00:45:45,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 292 states, 287 states have (on average 1.5261324041811846) internal successors, (438), 287 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) [2022-02-24 00:45:45,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 442 transitions. [2022-02-24 00:45:45,399 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 442 transitions. Word has length 90 [2022-02-24 00:45:45,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:45:45,399 INFO L470 AbstractCegarLoop]: Abstraction has 292 states and 442 transitions. [2022-02-24 00:45:45,399 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:45:45,399 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 442 transitions. [2022-02-24 00:45:45,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-02-24 00:45:45,400 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:45:45,400 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:45:45,400 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-02-24 00:45:45,400 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:45:45,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:45:45,400 INFO L85 PathProgramCache]: Analyzing trace with hash -1993319101, now seen corresponding path program 1 times [2022-02-24 00:45:45,400 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:45:45,400 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1766061934] [2022-02-24 00:45:45,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:45:45,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:45:45,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:45:45,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:45:45,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:45:45,486 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-02-24 00:45:45,487 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:45:45,487 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1766061934] [2022-02-24 00:45:45,487 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1766061934] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:45:45,487 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:45:45,487 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:45:45,487 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [126098540] [2022-02-24 00:45:45,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:45:45,487 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:45:45,487 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:45:45,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:45:45,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:45:45,488 INFO L87 Difference]: Start difference. First operand 292 states and 442 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:45:47,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:45:47,918 INFO L93 Difference]: Finished difference Result 656 states and 1005 transitions. [2022-02-24 00:45:47,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:45:47,918 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 90 [2022-02-24 00:45:47,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:45:47,920 INFO L225 Difference]: With dead ends: 656 [2022-02-24 00:45:47,920 INFO L226 Difference]: Without dead ends: 390 [2022-02-24 00:45:47,920 INFO L932 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 [2022-02-24 00:45:47,921 INFO L933 BasicCegarLoop]: 133 mSDtfsCounter, 117 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 487 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 376 SdHoareTripleChecker+Invalid, 546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 487 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-24 00:45:47,921 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [117 Valid, 376 Invalid, 546 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 487 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-02-24 00:45:47,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390 states. [2022-02-24 00:45:47,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 390 to 272. [2022-02-24 00:45:47,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 272 states, 267 states have (on average 1.5430711610486891) internal successors, (412), 267 states have internal predecessors, (412), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:45:47,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 416 transitions. [2022-02-24 00:45:47,926 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 416 transitions. Word has length 90 [2022-02-24 00:45:47,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:45:47,926 INFO L470 AbstractCegarLoop]: Abstraction has 272 states and 416 transitions. [2022-02-24 00:45:47,926 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:45:47,926 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 416 transitions. [2022-02-24 00:45:47,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-02-24 00:45:47,927 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:45:47,927 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:45:47,927 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-02-24 00:45:47,927 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:45:47,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:45:47,928 INFO L85 PathProgramCache]: Analyzing trace with hash 1693007915, now seen corresponding path program 1 times [2022-02-24 00:45:47,928 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:45:47,928 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241773202] [2022-02-24 00:45:47,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:45:47,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:45:47,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:45:48,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:45:48,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:45:48,021 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-02-24 00:45:48,021 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:45:48,021 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241773202] [2022-02-24 00:45:48,021 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [241773202] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:45:48,021 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:45:48,021 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:45:48,022 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392701722] [2022-02-24 00:45:48,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:45:48,022 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:45:48,022 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:45:48,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:45:48,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:45:48,022 INFO L87 Difference]: Start difference. First operand 272 states and 416 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) [2022-02-24 00:45:49,639 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:45:51,663 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:45:53,687 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:45:54,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:45:54,823 INFO L93 Difference]: Finished difference Result 611 states and 942 transitions. [2022-02-24 00:45:54,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:45:54,823 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 118 [2022-02-24 00:45:54,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:45:54,825 INFO L225 Difference]: With dead ends: 611 [2022-02-24 00:45:54,825 INFO L226 Difference]: Without dead ends: 365 [2022-02-24 00:45:54,825 INFO L932 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 [2022-02-24 00:45:54,826 INFO L933 BasicCegarLoop]: 182 mSDtfsCounter, 86 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 505 mSolverCounterSat, 11 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 481 SdHoareTripleChecker+Invalid, 518 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 505 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2022-02-24 00:45:54,826 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [86 Valid, 481 Invalid, 518 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 505 Invalid, 2 Unknown, 0 Unchecked, 6.8s Time] [2022-02-24 00:45:54,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 365 states. [2022-02-24 00:45:54,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 365 to 306. [2022-02-24 00:45:54,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 306 states, 301 states have (on average 1.548172757475083) internal successors, (466), 301 states have internal predecessors, (466), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:45:54,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 470 transitions. [2022-02-24 00:45:54,831 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 470 transitions. Word has length 118 [2022-02-24 00:45:54,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:45:54,831 INFO L470 AbstractCegarLoop]: Abstraction has 306 states and 470 transitions. [2022-02-24 00:45:54,831 INFO L471 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) [2022-02-24 00:45:54,832 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 470 transitions. [2022-02-24 00:45:54,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-02-24 00:45:54,832 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:45:54,832 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:45:54,832 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-02-24 00:45:54,832 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:45:54,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:45:54,833 INFO L85 PathProgramCache]: Analyzing trace with hash -1647730486, now seen corresponding path program 1 times [2022-02-24 00:45:54,833 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:45:54,833 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557848857] [2022-02-24 00:45:54,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:45:54,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:45:54,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:45:54,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:45:54,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:45:54,956 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-02-24 00:45:54,956 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:45:54,956 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [557848857] [2022-02-24 00:45:54,956 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [557848857] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:45:54,957 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:45:54,957 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:45:54,957 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199095960] [2022-02-24 00:45:54,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:45:54,958 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:45:54,958 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:45:54,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:45:54,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:45:54,959 INFO L87 Difference]: Start difference. First operand 306 states and 470 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) [2022-02-24 00:45:57,290 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:45:59,842 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:46:00,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:46:00,265 INFO L93 Difference]: Finished difference Result 738 states and 1147 transitions. [2022-02-24 00:46:00,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:46:00,266 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 118 [2022-02-24 00:46:00,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:46:00,267 INFO L225 Difference]: With dead ends: 738 [2022-02-24 00:46:00,267 INFO L226 Difference]: Without dead ends: 458 [2022-02-24 00:46:00,268 INFO L932 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 [2022-02-24 00:46:00,268 INFO L933 BasicCegarLoop]: 127 mSDtfsCounter, 123 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 468 mSolverCounterSat, 48 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 364 SdHoareTripleChecker+Invalid, 518 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 468 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-02-24 00:46:00,268 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [123 Valid, 364 Invalid, 518 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 468 Invalid, 2 Unknown, 0 Unchecked, 5.3s Time] [2022-02-24 00:46:00,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 458 states. [2022-02-24 00:46:00,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 458 to 336. [2022-02-24 00:46:00,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 336 states, 331 states have (on average 1.5589123867069485) internal successors, (516), 331 states have internal predecessors, (516), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:46:00,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 520 transitions. [2022-02-24 00:46:00,274 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 520 transitions. Word has length 118 [2022-02-24 00:46:00,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:46:00,275 INFO L470 AbstractCegarLoop]: Abstraction has 336 states and 520 transitions. [2022-02-24 00:46:00,275 INFO L471 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) [2022-02-24 00:46:00,275 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 520 transitions. [2022-02-24 00:46:00,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-02-24 00:46:00,275 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:46:00,276 INFO L514 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] [2022-02-24 00:46:00,276 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-02-24 00:46:00,276 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:46:00,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:46:00,276 INFO L85 PathProgramCache]: Analyzing trace with hash -783527628, now seen corresponding path program 1 times [2022-02-24 00:46:00,276 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:46:00,276 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503010254] [2022-02-24 00:46:00,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:46:00,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:46:00,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:46:00,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:46:00,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:46:00,369 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-02-24 00:46:00,369 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:46:00,370 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1503010254] [2022-02-24 00:46:00,370 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1503010254] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:46:00,370 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:46:00,370 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:46:00,370 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375175215] [2022-02-24 00:46:00,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:46:00,370 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:46:00,370 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:46:00,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:46:00,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:46:00,371 INFO L87 Difference]: Start difference. First operand 336 states and 520 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) [2022-02-24 00:46:01,621 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:46:04,022 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:46:06,043 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 [] [2022-02-24 00:46:06,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:46:06,537 INFO L93 Difference]: Finished difference Result 762 states and 1183 transitions. [2022-02-24 00:46:06,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:46:06,538 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 [2022-02-24 00:46:06,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:46:06,539 INFO L225 Difference]: With dead ends: 762 [2022-02-24 00:46:06,539 INFO L226 Difference]: Without dead ends: 452 [2022-02-24 00:46:06,540 INFO L932 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 [2022-02-24 00:46:06,540 INFO L933 BasicCegarLoop]: 121 mSDtfsCounter, 119 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 475 mSolverCounterSat, 59 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 535 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 475 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-02-24 00:46:06,540 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 352 Invalid, 535 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 475 Invalid, 1 Unknown, 0 Unchecked, 6.1s Time] [2022-02-24 00:46:06,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 452 states. [2022-02-24 00:46:06,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 452 to 373. [2022-02-24 00:46:06,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 373 states, 368 states have (on average 1.565217391304348) internal successors, (576), 368 states have internal predecessors, (576), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:46:06,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 580 transitions. [2022-02-24 00:46:06,547 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 580 transitions. Word has length 123 [2022-02-24 00:46:06,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:46:06,547 INFO L470 AbstractCegarLoop]: Abstraction has 373 states and 580 transitions. [2022-02-24 00:46:06,547 INFO L471 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) [2022-02-24 00:46:06,547 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 580 transitions. [2022-02-24 00:46:06,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-02-24 00:46:06,548 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:46:06,548 INFO L514 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] [2022-02-24 00:46:06,548 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-02-24 00:46:06,548 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:46:06,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:46:06,548 INFO L85 PathProgramCache]: Analyzing trace with hash -1000254116, now seen corresponding path program 1 times [2022-02-24 00:46:06,548 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:46:06,549 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757125380] [2022-02-24 00:46:06,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:46:06,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:46:06,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:46:06,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:46:06,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:46:06,636 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-02-24 00:46:06,636 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:46:06,637 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1757125380] [2022-02-24 00:46:06,637 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1757125380] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:46:06,637 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:46:06,637 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:46:06,637 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438663755] [2022-02-24 00:46:06,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:46:06,637 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:46:06,637 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:46:06,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:46:06,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:46:06,638 INFO L87 Difference]: Start difference. First operand 373 states and 580 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) [2022-02-24 00:46:08,334 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 [] [2022-02-24 00:46:09,852 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:46:11,876 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:46:13,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:46:13,251 INFO L93 Difference]: Finished difference Result 811 states and 1266 transitions. [2022-02-24 00:46:13,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:46:13,251 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 [2022-02-24 00:46:13,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:46:13,253 INFO L225 Difference]: With dead ends: 811 [2022-02-24 00:46:13,253 INFO L226 Difference]: Without dead ends: 464 [2022-02-24 00:46:13,253 INFO L932 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 [2022-02-24 00:46:13,254 INFO L933 BasicCegarLoop]: 183 mSDtfsCounter, 77 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 504 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 483 SdHoareTripleChecker+Invalid, 516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 504 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2022-02-24 00:46:13,254 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [77 Valid, 483 Invalid, 516 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 504 Invalid, 1 Unknown, 0 Unchecked, 6.6s Time] [2022-02-24 00:46:13,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2022-02-24 00:46:13,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 413. [2022-02-24 00:46:13,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 413 states, 408 states have (on average 1.5686274509803921) internal successors, (640), 408 states have internal predecessors, (640), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:46:13,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 644 transitions. [2022-02-24 00:46:13,260 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 644 transitions. Word has length 124 [2022-02-24 00:46:13,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:46:13,260 INFO L470 AbstractCegarLoop]: Abstraction has 413 states and 644 transitions. [2022-02-24 00:46:13,261 INFO L471 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) [2022-02-24 00:46:13,261 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 644 transitions. [2022-02-24 00:46:13,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-02-24 00:46:13,261 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:46:13,261 INFO L514 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] [2022-02-24 00:46:13,262 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-02-24 00:46:13,262 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:46:13,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:46:13,262 INFO L85 PathProgramCache]: Analyzing trace with hash 108561083, now seen corresponding path program 1 times [2022-02-24 00:46:13,262 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:46:13,262 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [605244679] [2022-02-24 00:46:13,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:46:13,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:46:13,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:46:13,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:46:13,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:46:13,376 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-02-24 00:46:13,376 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:46:13,376 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [605244679] [2022-02-24 00:46:13,376 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [605244679] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:46:13,376 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:46:13,376 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:46:13,376 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871883567] [2022-02-24 00:46:13,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:46:13,377 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:46:13,377 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:46:13,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:46:13,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:46:13,377 INFO L87 Difference]: Start difference. First operand 413 states and 644 transitions. Second operand has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:46:14,807 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:46:16,221 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:46:18,188 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.97s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:46:19,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:46:19,122 INFO L93 Difference]: Finished difference Result 845 states and 1323 transitions. [2022-02-24 00:46:19,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:46:19,123 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 124 [2022-02-24 00:46:19,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:46:19,124 INFO L225 Difference]: With dead ends: 845 [2022-02-24 00:46:19,124 INFO L226 Difference]: Without dead ends: 458 [2022-02-24 00:46:19,125 INFO L932 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 [2022-02-24 00:46:19,125 INFO L933 BasicCegarLoop]: 245 mSDtfsCounter, 34 mSDsluCounter, 360 mSDsCounter, 0 mSdLazyCounter, 458 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 605 SdHoareTripleChecker+Invalid, 467 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 458 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-02-24 00:46:19,125 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 605 Invalid, 467 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 458 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2022-02-24 00:46:19,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 458 states. [2022-02-24 00:46:19,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 458 to 437. [2022-02-24 00:46:19,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 437 states, 432 states have (on average 1.5648148148148149) internal successors, (676), 432 states have internal predecessors, (676), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:46:19,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 437 states and 680 transitions. [2022-02-24 00:46:19,135 INFO L78 Accepts]: Start accepts. Automaton has 437 states and 680 transitions. Word has length 124 [2022-02-24 00:46:19,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:46:19,135 INFO L470 AbstractCegarLoop]: Abstraction has 437 states and 680 transitions. [2022-02-24 00:46:19,135 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:46:19,135 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states and 680 transitions. [2022-02-24 00:46:19,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-02-24 00:46:19,136 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:46:19,136 INFO L514 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] [2022-02-24 00:46:19,136 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-02-24 00:46:19,136 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:46:19,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:46:19,137 INFO L85 PathProgramCache]: Analyzing trace with hash -1153121249, now seen corresponding path program 1 times [2022-02-24 00:46:19,137 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:46:19,137 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662596057] [2022-02-24 00:46:19,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:46:19,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:46:19,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:46:19,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:46:19,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:46:19,236 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-02-24 00:46:19,236 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:46:19,236 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662596057] [2022-02-24 00:46:19,236 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [662596057] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:46:19,236 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:46:19,236 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:46:19,236 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978595154] [2022-02-24 00:46:19,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:46:19,237 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:46:19,237 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:46:19,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:46:19,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:46:19,237 INFO L87 Difference]: Start difference. First operand 437 states and 680 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) [2022-02-24 00:46:21,055 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:46:22,144 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 [] [2022-02-24 00:46:22,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:46:22,911 INFO L93 Difference]: Finished difference Result 964 states and 1502 transitions. [2022-02-24 00:46:22,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:46:22,912 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 [2022-02-24 00:46:22,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:46:22,919 INFO L225 Difference]: With dead ends: 964 [2022-02-24 00:46:22,919 INFO L226 Difference]: Without dead ends: 553 [2022-02-24 00:46:22,935 INFO L932 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 [2022-02-24 00:46:22,936 INFO L933 BasicCegarLoop]: 121 mSDtfsCounter, 112 mSDsluCounter, 232 mSDsCounter, 0 mSdLazyCounter, 476 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 353 SdHoareTripleChecker+Invalid, 536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 476 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-02-24 00:46:22,936 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [112 Valid, 353 Invalid, 536 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 476 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-02-24 00:46:22,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2022-02-24 00:46:22,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 480. [2022-02-24 00:46:22,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 480 states, 475 states have (on average 1.5705263157894738) internal successors, (746), 475 states have internal predecessors, (746), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:46:22,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 480 states to 480 states and 750 transitions. [2022-02-24 00:46:22,951 INFO L78 Accepts]: Start accepts. Automaton has 480 states and 750 transitions. Word has length 132 [2022-02-24 00:46:22,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:46:22,951 INFO L470 AbstractCegarLoop]: Abstraction has 480 states and 750 transitions. [2022-02-24 00:46:22,952 INFO L471 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) [2022-02-24 00:46:22,952 INFO L276 IsEmpty]: Start isEmpty. Operand 480 states and 750 transitions. [2022-02-24 00:46:22,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-02-24 00:46:22,953 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:46:22,953 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:46:22,953 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-02-24 00:46:22,953 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:46:22,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:46:22,953 INFO L85 PathProgramCache]: Analyzing trace with hash 1150642105, now seen corresponding path program 1 times [2022-02-24 00:46:22,953 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:46:22,954 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805434130] [2022-02-24 00:46:22,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:46:22,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:46:23,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:46:23,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:46:23,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:46:23,062 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-02-24 00:46:23,063 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:46:23,063 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805434130] [2022-02-24 00:46:23,063 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1805434130] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:46:23,063 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:46:23,063 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:46:23,063 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353846759] [2022-02-24 00:46:23,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:46:23,063 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:46:23,063 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:46:23,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:46:23,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:46:23,064 INFO L87 Difference]: Start difference. First operand 480 states and 750 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) [2022-02-24 00:46:26,067 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:46:28,092 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 [] [2022-02-24 00:46:28,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:46:28,484 INFO L93 Difference]: Finished difference Result 977 states and 1528 transitions. [2022-02-24 00:46:28,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:46:28,484 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 133 [2022-02-24 00:46:28,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:46:28,486 INFO L225 Difference]: With dead ends: 977 [2022-02-24 00:46:28,486 INFO L226 Difference]: Without dead ends: 523 [2022-02-24 00:46:28,487 INFO L932 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 [2022-02-24 00:46:28,487 INFO L933 BasicCegarLoop]: 186 mSDtfsCounter, 61 mSDsluCounter, 303 mSDsCounter, 0 mSdLazyCounter, 498 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 489 SdHoareTripleChecker+Invalid, 510 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 498 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-02-24 00:46:28,487 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [61 Valid, 489 Invalid, 510 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 498 Invalid, 1 Unknown, 0 Unchecked, 5.4s Time] [2022-02-24 00:46:28,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 523 states. [2022-02-24 00:46:28,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 523 to 483. [2022-02-24 00:46:28,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 483 states, 478 states have (on average 1.5669456066945606) internal successors, (749), 478 states have internal predecessors, (749), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:46:28,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 753 transitions. [2022-02-24 00:46:28,494 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 753 transitions. Word has length 133 [2022-02-24 00:46:28,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:46:28,495 INFO L470 AbstractCegarLoop]: Abstraction has 483 states and 753 transitions. [2022-02-24 00:46:28,495 INFO L471 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) [2022-02-24 00:46:28,496 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 753 transitions. [2022-02-24 00:46:28,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2022-02-24 00:46:28,497 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:46:28,497 INFO L514 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, 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] [2022-02-24 00:46:28,497 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-02-24 00:46:28,497 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:46:28,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:46:28,498 INFO L85 PathProgramCache]: Analyzing trace with hash -388650695, now seen corresponding path program 1 times [2022-02-24 00:46:28,498 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:46:28,498 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67296923] [2022-02-24 00:46:28,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:46:28,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:46:28,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:46:28,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:46:28,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:46:28,659 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 81 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-02-24 00:46:28,659 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:46:28,659 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67296923] [2022-02-24 00:46:28,659 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [67296923] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:46:28,659 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:46:28,659 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:46:28,659 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200303787] [2022-02-24 00:46:28,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:46:28,659 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:46:28,660 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:46:28,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:46:28,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:46:28,660 INFO L87 Difference]: Start difference. First operand 483 states and 753 transitions. Second operand has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:46:31,084 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 [] [2022-02-24 00:46:33,357 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:46:33,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:46:33,785 INFO L93 Difference]: Finished difference Result 1016 states and 1583 transitions. [2022-02-24 00:46:33,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:46:33,785 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 139 [2022-02-24 00:46:33,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:46:33,787 INFO L225 Difference]: With dead ends: 1016 [2022-02-24 00:46:33,787 INFO L226 Difference]: Without dead ends: 559 [2022-02-24 00:46:33,788 INFO L932 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 [2022-02-24 00:46:33,788 INFO L933 BasicCegarLoop]: 121 mSDtfsCounter, 144 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 474 mSolverCounterSat, 61 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 474 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-02-24 00:46:33,788 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [144 Valid, 352 Invalid, 536 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 474 Invalid, 1 Unknown, 0 Unchecked, 5.1s Time] [2022-02-24 00:46:33,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 559 states. [2022-02-24 00:46:33,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 559 to 483. [2022-02-24 00:46:33,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 483 states, 478 states have (on average 1.5481171548117154) internal successors, (740), 478 states have internal predecessors, (740), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:46:33,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 744 transitions. [2022-02-24 00:46:33,796 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 744 transitions. Word has length 139 [2022-02-24 00:46:33,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:46:33,796 INFO L470 AbstractCegarLoop]: Abstraction has 483 states and 744 transitions. [2022-02-24 00:46:33,796 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:46:33,796 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 744 transitions. [2022-02-24 00:46:33,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2022-02-24 00:46:33,797 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:46:33,797 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:46:33,797 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-02-24 00:46:33,797 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:46:33,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:46:33,797 INFO L85 PathProgramCache]: Analyzing trace with hash -1482777273, now seen corresponding path program 1 times [2022-02-24 00:46:33,798 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:46:33,798 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326773720] [2022-02-24 00:46:33,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:46:33,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:46:33,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:46:33,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:46:33,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:46:33,894 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 85 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-02-24 00:46:33,894 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:46:33,894 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326773720] [2022-02-24 00:46:33,894 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [326773720] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:46:33,894 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:46:33,894 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:46:33,894 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448250333] [2022-02-24 00:46:33,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:46:33,895 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:46:33,895 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:46:33,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:46:33,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:46:33,895 INFO L87 Difference]: Start difference. First operand 483 states and 744 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) [2022-02-24 00:46:35,597 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 [] [2022-02-24 00:46:38,240 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:46:38,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:46:38,669 INFO L93 Difference]: Finished difference Result 1006 states and 1552 transitions. [2022-02-24 00:46:38,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:46:38,670 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 140 [2022-02-24 00:46:38,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:46:38,671 INFO L225 Difference]: With dead ends: 1006 [2022-02-24 00:46:38,671 INFO L226 Difference]: Without dead ends: 549 [2022-02-24 00:46:38,672 INFO L932 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 [2022-02-24 00:46:38,672 INFO L933 BasicCegarLoop]: 143 mSDtfsCounter, 135 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 475 mSolverCounterSat, 52 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 396 SdHoareTripleChecker+Invalid, 528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 475 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-02-24 00:46:38,672 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [135 Valid, 396 Invalid, 528 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 475 Invalid, 1 Unknown, 0 Unchecked, 4.7s Time] [2022-02-24 00:46:38,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 549 states. [2022-02-24 00:46:38,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 549 to 483. [2022-02-24 00:46:38,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 483 states, 478 states have (on average 1.5292887029288702) internal successors, (731), 478 states have internal predecessors, (731), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:46:38,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 735 transitions. [2022-02-24 00:46:38,681 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 735 transitions. Word has length 140 [2022-02-24 00:46:38,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:46:38,681 INFO L470 AbstractCegarLoop]: Abstraction has 483 states and 735 transitions. [2022-02-24 00:46:38,681 INFO L471 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) [2022-02-24 00:46:38,681 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 735 transitions. [2022-02-24 00:46:38,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-02-24 00:46:38,691 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:46:38,691 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:46:38,691 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-02-24 00:46:38,691 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:46:38,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:46:38,692 INFO L85 PathProgramCache]: Analyzing trace with hash 768602161, now seen corresponding path program 1 times [2022-02-24 00:46:38,692 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:46:38,692 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447003992] [2022-02-24 00:46:38,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:46:38,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:46:38,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:46:38,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:46:38,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:46:38,812 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 134 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-02-24 00:46:38,812 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:46:38,812 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1447003992] [2022-02-24 00:46:38,812 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1447003992] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:46:38,812 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:46:38,813 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:46:38,813 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274359391] [2022-02-24 00:46:38,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:46:38,813 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:46:38,813 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:46:38,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:46:38,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:46:38,813 INFO L87 Difference]: Start difference. First operand 483 states and 735 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) [2022-02-24 00:46:40,726 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:46:42,753 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:46:43,928 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:46:45,634 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:46:46,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:46:46,064 INFO L93 Difference]: Finished difference Result 1049 states and 1602 transitions. [2022-02-24 00:46:46,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:46:46,064 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 [2022-02-24 00:46:46,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:46:46,066 INFO L225 Difference]: With dead ends: 1049 [2022-02-24 00:46:46,066 INFO L226 Difference]: Without dead ends: 592 [2022-02-24 00:46:46,067 INFO L932 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 [2022-02-24 00:46:46,067 INFO L933 BasicCegarLoop]: 131 mSDtfsCounter, 117 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 466 mSolverCounterSat, 48 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 372 SdHoareTripleChecker+Invalid, 515 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 466 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2022-02-24 00:46:46,067 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [117 Valid, 372 Invalid, 515 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 466 Invalid, 1 Unknown, 0 Unchecked, 7.2s Time] [2022-02-24 00:46:46,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 592 states. [2022-02-24 00:46:46,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 592 to 513. [2022-02-24 00:46:46,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 513 states, 508 states have (on average 1.5177165354330708) internal successors, (771), 508 states have internal predecessors, (771), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:46:46,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 513 states to 513 states and 775 transitions. [2022-02-24 00:46:46,077 INFO L78 Accepts]: Start accepts. Automaton has 513 states and 775 transitions. Word has length 145 [2022-02-24 00:46:46,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:46:46,077 INFO L470 AbstractCegarLoop]: Abstraction has 513 states and 775 transitions. [2022-02-24 00:46:46,077 INFO L471 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) [2022-02-24 00:46:46,077 INFO L276 IsEmpty]: Start isEmpty. Operand 513 states and 775 transitions. [2022-02-24 00:46:46,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-02-24 00:46:46,078 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:46:46,078 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:46:46,078 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-02-24 00:46:46,078 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:46:46,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:46:46,078 INFO L85 PathProgramCache]: Analyzing trace with hash 1175650522, now seen corresponding path program 1 times [2022-02-24 00:46:46,079 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:46:46,079 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2010263058] [2022-02-24 00:46:46,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:46:46,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:46:46,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:46:46,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:46:46,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:46:46,168 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 122 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-02-24 00:46:46,168 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:46:46,168 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2010263058] [2022-02-24 00:46:46,168 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2010263058] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:46:46,168 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:46:46,168 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:46:46,168 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194813935] [2022-02-24 00:46:46,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:46:46,169 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:46:46,169 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:46:46,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:46:46,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:46:46,169 INFO L87 Difference]: Start difference. First operand 513 states and 775 transitions. Second operand has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:46:47,543 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:46:49,602 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 [] [2022-02-24 00:46:50,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:46:50,308 INFO L93 Difference]: Finished difference Result 1066 states and 1614 transitions. [2022-02-24 00:46:50,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:46:50,309 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 1 states have call successors, (3), 2 states have 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 [2022-02-24 00:46:50,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:46:50,310 INFO L225 Difference]: With dead ends: 1066 [2022-02-24 00:46:50,310 INFO L226 Difference]: Without dead ends: 579 [2022-02-24 00:46:50,311 INFO L932 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 [2022-02-24 00:46:50,313 INFO L933 BasicCegarLoop]: 148 mSDtfsCounter, 123 mSDsluCounter, 258 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 406 SdHoareTripleChecker+Invalid, 532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-02-24 00:46:50,313 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [123 Valid, 406 Invalid, 532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 483 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-02-24 00:46:50,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 579 states. [2022-02-24 00:46:50,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 579 to 513. [2022-02-24 00:46:50,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 513 states, 508 states have (on average 1.5019685039370079) internal successors, (763), 508 states have internal predecessors, (763), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:46:50,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 513 states to 513 states and 767 transitions. [2022-02-24 00:46:50,322 INFO L78 Accepts]: Start accepts. Automaton has 513 states and 767 transitions. Word has length 146 [2022-02-24 00:46:50,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:46:50,322 INFO L470 AbstractCegarLoop]: Abstraction has 513 states and 767 transitions. [2022-02-24 00:46:50,323 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:46:50,323 INFO L276 IsEmpty]: Start isEmpty. Operand 513 states and 767 transitions. [2022-02-24 00:46:50,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-02-24 00:46:50,324 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:46:50,324 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:46:50,324 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-02-24 00:46:50,324 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:46:50,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:46:50,324 INFO L85 PathProgramCache]: Analyzing trace with hash 404056418, now seen corresponding path program 1 times [2022-02-24 00:46:50,324 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:46:50,324 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640085413] [2022-02-24 00:46:50,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:46:50,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:46:50,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:46:50,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:46:50,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:46:50,425 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 136 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-02-24 00:46:50,425 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:46:50,425 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640085413] [2022-02-24 00:46:50,425 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1640085413] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:46:50,425 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:46:50,425 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:46:50,425 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789407904] [2022-02-24 00:46:50,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:46:50,426 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:46:50,426 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:46:50,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:46:50,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:46:50,426 INFO L87 Difference]: Start difference. First operand 513 states and 767 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) [2022-02-24 00:46:52,976 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 [] [2022-02-24 00:46:54,461 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:46:55,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:46:55,373 INFO L93 Difference]: Finished difference Result 1028 states and 1543 transitions. [2022-02-24 00:46:55,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:46:55,374 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 [2022-02-24 00:46:55,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:46:55,375 INFO L225 Difference]: With dead ends: 1028 [2022-02-24 00:46:55,375 INFO L226 Difference]: Without dead ends: 541 [2022-02-24 00:46:55,376 INFO L932 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 [2022-02-24 00:46:55,376 INFO L933 BasicCegarLoop]: 200 mSDtfsCounter, 58 mSDsluCounter, 317 mSDsCounter, 0 mSdLazyCounter, 486 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 517 SdHoareTripleChecker+Invalid, 494 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 486 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-02-24 00:46:55,376 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [58 Valid, 517 Invalid, 494 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 486 Invalid, 1 Unknown, 0 Unchecked, 4.9s Time] [2022-02-24 00:46:55,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 541 states. [2022-02-24 00:46:55,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 541 to 513. [2022-02-24 00:46:55,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 513 states, 508 states have (on average 1.5) internal successors, (762), 508 states have internal predecessors, (762), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:46:55,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 513 states to 513 states and 766 transitions. [2022-02-24 00:46:55,390 INFO L78 Accepts]: Start accepts. Automaton has 513 states and 766 transitions. Word has length 146 [2022-02-24 00:46:55,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:46:55,390 INFO L470 AbstractCegarLoop]: Abstraction has 513 states and 766 transitions. [2022-02-24 00:46:55,391 INFO L471 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) [2022-02-24 00:46:55,391 INFO L276 IsEmpty]: Start isEmpty. Operand 513 states and 766 transitions. [2022-02-24 00:46:55,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-02-24 00:46:55,392 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:46:55,392 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:46:55,392 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-02-24 00:46:55,392 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:46:55,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:46:55,393 INFO L85 PathProgramCache]: Analyzing trace with hash 222448889, now seen corresponding path program 1 times [2022-02-24 00:46:55,393 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:46:55,393 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741914918] [2022-02-24 00:46:55,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:46:55,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:46:55,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:46:55,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:46:55,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:46:55,493 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 127 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-02-24 00:46:55,493 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:46:55,493 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [741914918] [2022-02-24 00:46:55,493 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [741914918] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:46:55,493 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:46:55,494 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:46:55,494 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393868943] [2022-02-24 00:46:55,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:46:55,494 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:46:55,494 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:46:55,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:46:55,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:46:55,494 INFO L87 Difference]: Start difference. First operand 513 states and 766 transitions. Second operand has 5 states, 5 states have (on average 23.2) internal successors, (116), 4 states have internal predecessors, (116), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:46:57,507 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 [] [2022-02-24 00:46:57,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:46:57,927 INFO L93 Difference]: Finished difference Result 1066 states and 1596 transitions. [2022-02-24 00:46:57,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:46:57,927 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 4 states have internal predecessors, (116), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 146 [2022-02-24 00:46:57,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:46:57,929 INFO L225 Difference]: With dead ends: 1066 [2022-02-24 00:46:57,929 INFO L226 Difference]: Without dead ends: 579 [2022-02-24 00:46:57,930 INFO L932 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 [2022-02-24 00:46:57,930 INFO L933 BasicCegarLoop]: 143 mSDtfsCounter, 109 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 472 mSolverCounterSat, 53 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 396 SdHoareTripleChecker+Invalid, 526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 472 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-24 00:46:57,930 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [109 Valid, 396 Invalid, 526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 472 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-24 00:46:57,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 579 states. [2022-02-24 00:46:57,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 579 to 513. [2022-02-24 00:46:57,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 513 states, 508 states have (on average 1.4940944881889764) internal successors, (759), 508 states have internal predecessors, (759), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:46:57,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 513 states to 513 states and 763 transitions. [2022-02-24 00:46:57,937 INFO L78 Accepts]: Start accepts. Automaton has 513 states and 763 transitions. Word has length 146 [2022-02-24 00:46:57,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:46:57,937 INFO L470 AbstractCegarLoop]: Abstraction has 513 states and 763 transitions. [2022-02-24 00:46:57,937 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 4 states have internal predecessors, (116), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:46:57,938 INFO L276 IsEmpty]: Start isEmpty. Operand 513 states and 763 transitions. [2022-02-24 00:46:57,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-02-24 00:46:57,938 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:46:57,939 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:46:57,939 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-02-24 00:46:57,939 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:46:57,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:46:57,939 INFO L85 PathProgramCache]: Analyzing trace with hash -1085963958, now seen corresponding path program 1 times [2022-02-24 00:46:57,939 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:46:57,939 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2109451727] [2022-02-24 00:46:57,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:46:57,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:46:57,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:46:58,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:46:58,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:46:58,028 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 130 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-02-24 00:46:58,028 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:46:58,028 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2109451727] [2022-02-24 00:46:58,028 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2109451727] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:46:58,028 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:46:58,028 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:46:58,028 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878267927] [2022-02-24 00:46:58,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:46:58,028 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:46:58,028 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:46:58,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:46:58,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:46:58,029 INFO L87 Difference]: Start difference. First operand 513 states and 763 transitions. Second operand has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:47:00,043 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 [] [2022-02-24 00:47:00,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:47:00,455 INFO L93 Difference]: Finished difference Result 1109 states and 1655 transitions. [2022-02-24 00:47:00,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:47:00,455 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 148 [2022-02-24 00:47:00,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:47:00,457 INFO L225 Difference]: With dead ends: 1109 [2022-02-24 00:47:00,457 INFO L226 Difference]: Without dead ends: 622 [2022-02-24 00:47:00,458 INFO L932 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 [2022-02-24 00:47:00,458 INFO L933 BasicCegarLoop]: 143 mSDtfsCounter, 118 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 50 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 396 SdHoareTripleChecker+Invalid, 524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-24 00:47:00,458 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [118 Valid, 396 Invalid, 524 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 473 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-24 00:47:00,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 622 states. [2022-02-24 00:47:00,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 622 to 541. [2022-02-24 00:47:00,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 541 states, 536 states have (on average 1.4794776119402986) internal successors, (793), 536 states have internal predecessors, (793), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:47:00,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 541 states to 541 states and 797 transitions. [2022-02-24 00:47:00,465 INFO L78 Accepts]: Start accepts. Automaton has 541 states and 797 transitions. Word has length 148 [2022-02-24 00:47:00,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:47:00,466 INFO L470 AbstractCegarLoop]: Abstraction has 541 states and 797 transitions. [2022-02-24 00:47:00,466 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:47:00,466 INFO L276 IsEmpty]: Start isEmpty. Operand 541 states and 797 transitions. [2022-02-24 00:47:00,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-02-24 00:47:00,467 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:47:00,467 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:47:00,467 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-02-24 00:47:00,467 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:47:00,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:47:00,467 INFO L85 PathProgramCache]: Analyzing trace with hash 542827771, now seen corresponding path program 1 times [2022-02-24 00:47:00,467 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:47:00,467 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915845464] [2022-02-24 00:47:00,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:47:00,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:47:00,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:47:00,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:47:00,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:47:00,556 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-02-24 00:47:00,556 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:47:00,556 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915845464] [2022-02-24 00:47:00,556 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1915845464] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:47:00,556 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:47:00,556 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:47:00,556 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898604890] [2022-02-24 00:47:00,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:47:00,556 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:47:00,556 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:47:00,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:47:00,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:47:00,557 INFO L87 Difference]: Start difference. First operand 541 states and 797 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) [2022-02-24 00:47:03,006 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 [] [2022-02-24 00:47:05,035 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 [] [2022-02-24 00:47:05,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:47:05,787 INFO L93 Difference]: Finished difference Result 1122 states and 1658 transitions. [2022-02-24 00:47:05,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:47:05,787 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 [2022-02-24 00:47:05,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:47:05,789 INFO L225 Difference]: With dead ends: 1122 [2022-02-24 00:47:05,789 INFO L226 Difference]: Without dead ends: 607 [2022-02-24 00:47:05,791 INFO L932 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 [2022-02-24 00:47:05,793 INFO L933 BasicCegarLoop]: 131 mSDtfsCounter, 117 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 462 mSolverCounterSat, 54 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 372 SdHoareTripleChecker+Invalid, 518 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 462 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-02-24 00:47:05,793 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [117 Valid, 372 Invalid, 518 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 462 Invalid, 2 Unknown, 0 Unchecked, 5.2s Time] [2022-02-24 00:47:05,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 607 states. [2022-02-24 00:47:05,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 607 to 541. [2022-02-24 00:47:05,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 541 states, 536 states have (on average 1.4645522388059702) internal successors, (785), 536 states have internal predecessors, (785), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:47:05,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 541 states to 541 states and 789 transitions. [2022-02-24 00:47:05,821 INFO L78 Accepts]: Start accepts. Automaton has 541 states and 789 transitions. Word has length 149 [2022-02-24 00:47:05,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:47:05,821 INFO L470 AbstractCegarLoop]: Abstraction has 541 states and 789 transitions. [2022-02-24 00:47:05,821 INFO L471 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) [2022-02-24 00:47:05,821 INFO L276 IsEmpty]: Start isEmpty. Operand 541 states and 789 transitions. [2022-02-24 00:47:05,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2022-02-24 00:47:05,851 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:47:05,851 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:47:05,851 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-02-24 00:47:05,851 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:47:05,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:47:05,852 INFO L85 PathProgramCache]: Analyzing trace with hash -290566255, now seen corresponding path program 1 times [2022-02-24 00:47:05,852 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:47:05,852 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961781280] [2022-02-24 00:47:05,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:47:05,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:47:05,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:47:05,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:47:05,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:47:05,950 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 144 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-02-24 00:47:05,950 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:47:05,950 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [961781280] [2022-02-24 00:47:05,950 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [961781280] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:47:05,950 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:47:05,951 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:47:05,951 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767677559] [2022-02-24 00:47:05,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:47:05,951 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:47:05,951 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:47:05,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:47:05,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:47:05,951 INFO L87 Difference]: Start difference. First operand 541 states and 789 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) [2022-02-24 00:47:07,384 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:47:09,406 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:47:11,756 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:47:12,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:47:12,182 INFO L93 Difference]: Finished difference Result 1165 states and 1705 transitions. [2022-02-24 00:47:12,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:47:12,182 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 155 [2022-02-24 00:47:12,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:47:12,184 INFO L225 Difference]: With dead ends: 1165 [2022-02-24 00:47:12,184 INFO L226 Difference]: Without dead ends: 650 [2022-02-24 00:47:12,185 INFO L932 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 [2022-02-24 00:47:12,185 INFO L933 BasicCegarLoop]: 131 mSDtfsCounter, 110 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 463 mSolverCounterSat, 52 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 372 SdHoareTripleChecker+Invalid, 517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 463 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-02-24 00:47:12,185 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 372 Invalid, 517 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 463 Invalid, 2 Unknown, 0 Unchecked, 6.2s Time] [2022-02-24 00:47:12,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 650 states. [2022-02-24 00:47:12,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 650 to 576. [2022-02-24 00:47:12,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 576 states, 571 states have (on average 1.457092819614711) internal successors, (832), 571 states have internal predecessors, (832), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:47:12,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 576 states to 576 states and 836 transitions. [2022-02-24 00:47:12,196 INFO L78 Accepts]: Start accepts. Automaton has 576 states and 836 transitions. Word has length 155 [2022-02-24 00:47:12,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:47:12,196 INFO L470 AbstractCegarLoop]: Abstraction has 576 states and 836 transitions. [2022-02-24 00:47:12,196 INFO L471 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) [2022-02-24 00:47:12,196 INFO L276 IsEmpty]: Start isEmpty. Operand 576 states and 836 transitions. [2022-02-24 00:47:12,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2022-02-24 00:47:12,197 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:47:12,198 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:47:12,198 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-02-24 00:47:12,198 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:47:12,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:47:12,199 INFO L85 PathProgramCache]: Analyzing trace with hash -1528516420, now seen corresponding path program 1 times [2022-02-24 00:47:12,199 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:47:12,199 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093787214] [2022-02-24 00:47:12,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:47:12,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:47:12,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:47:12,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:47:12,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:47:12,328 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 137 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-02-24 00:47:12,328 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:47:12,328 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2093787214] [2022-02-24 00:47:12,329 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2093787214] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:47:12,329 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:47:12,329 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-24 00:47:12,329 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674780851] [2022-02-24 00:47:12,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:47:12,329 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-24 00:47:12,329 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:47:12,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-24 00:47:12,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 00:47:12,330 INFO L87 Difference]: Start difference. First operand 576 states and 836 transitions. Second operand has 4 states, 4 states have (on average 30.75) internal successors, (123), 3 states have internal predecessors, (123), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:47:14,871 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:47:16,892 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:47:17,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:47:17,197 INFO L93 Difference]: Finished difference Result 1630 states and 2384 transitions. [2022-02-24 00:47:17,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-24 00:47:17,197 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.75) internal successors, (123), 3 states have internal predecessors, (123), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 155 [2022-02-24 00:47:17,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:47:17,200 INFO L225 Difference]: With dead ends: 1630 [2022-02-24 00:47:17,200 INFO L226 Difference]: Without dead ends: 1080 [2022-02-24 00:47:17,201 INFO L932 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 [2022-02-24 00:47:17,201 INFO L933 BasicCegarLoop]: 254 mSDtfsCounter, 134 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 295 mSolverCounterSat, 10 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 448 SdHoareTripleChecker+Invalid, 307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 295 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-02-24 00:47:17,201 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [134 Valid, 448 Invalid, 307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 295 Invalid, 2 Unknown, 0 Unchecked, 4.8s Time] [2022-02-24 00:47:17,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1080 states. [2022-02-24 00:47:17,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1080 to 1080. [2022-02-24 00:47:17,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1080 states, 1075 states have (on average 1.455813953488372) internal successors, (1565), 1075 states have internal predecessors, (1565), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:47:17,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1080 states to 1080 states and 1569 transitions. [2022-02-24 00:47:17,216 INFO L78 Accepts]: Start accepts. Automaton has 1080 states and 1569 transitions. Word has length 155 [2022-02-24 00:47:17,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:47:17,217 INFO L470 AbstractCegarLoop]: Abstraction has 1080 states and 1569 transitions. [2022-02-24 00:47:17,217 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.75) internal successors, (123), 3 states have internal predecessors, (123), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:47:17,217 INFO L276 IsEmpty]: Start isEmpty. Operand 1080 states and 1569 transitions. [2022-02-24 00:47:17,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2022-02-24 00:47:17,220 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:47:17,220 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:47:17,220 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-02-24 00:47:17,220 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:47:17,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:47:17,221 INFO L85 PathProgramCache]: Analyzing trace with hash -2047808707, now seen corresponding path program 1 times [2022-02-24 00:47:17,221 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:47:17,221 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472909879] [2022-02-24 00:47:17,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:47:17,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:47:17,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:47:17,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:47:17,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:47:17,301 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-02-24 00:47:17,301 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:47:17,301 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472909879] [2022-02-24 00:47:17,301 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [472909879] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:47:17,301 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:47:17,301 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-24 00:47:17,301 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75366208] [2022-02-24 00:47:17,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:47:17,302 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-24 00:47:17,302 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:47:17,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-24 00:47:17,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 00:47:17,303 INFO L87 Difference]: Start difference. First operand 1080 states and 1569 transitions. Second operand has 4 states, 4 states have (on average 25.0) internal successors, (100), 3 states have internal predecessors, (100), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:47:19,861 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:47:21,251 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:47:21,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:47:21,514 INFO L93 Difference]: Finished difference Result 2161 states and 3145 transitions. [2022-02-24 00:47:21,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-24 00:47:21,515 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 3 states have internal predecessors, (100), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 155 [2022-02-24 00:47:21,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:47:21,517 INFO L225 Difference]: With dead ends: 2161 [2022-02-24 00:47:21,518 INFO L226 Difference]: Without dead ends: 1107 [2022-02-24 00:47:21,539 INFO L932 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 [2022-02-24 00:47:21,539 INFO L933 BasicCegarLoop]: 225 mSDtfsCounter, 15 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 419 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-02-24 00:47:21,540 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 419 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 253 Invalid, 1 Unknown, 0 Unchecked, 4.2s Time] [2022-02-24 00:47:21,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1107 states. [2022-02-24 00:47:21,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1107 to 1107. [2022-02-24 00:47:21,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1107 states, 1102 states have (on average 1.4519056261343013) internal successors, (1600), 1102 states have internal predecessors, (1600), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:47:21,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1107 states to 1107 states and 1604 transitions. [2022-02-24 00:47:21,554 INFO L78 Accepts]: Start accepts. Automaton has 1107 states and 1604 transitions. Word has length 155 [2022-02-24 00:47:21,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:47:21,554 INFO L470 AbstractCegarLoop]: Abstraction has 1107 states and 1604 transitions. [2022-02-24 00:47:21,555 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 3 states have internal predecessors, (100), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:47:21,555 INFO L276 IsEmpty]: Start isEmpty. Operand 1107 states and 1604 transitions. [2022-02-24 00:47:21,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2022-02-24 00:47:21,559 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:47:21,559 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:47:21,560 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-02-24 00:47:21,560 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:47:21,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:47:21,560 INFO L85 PathProgramCache]: Analyzing trace with hash 1773132606, now seen corresponding path program 1 times [2022-02-24 00:47:21,560 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:47:21,560 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401705705] [2022-02-24 00:47:21,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:47:21,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:47:21,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:47:21,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:47:21,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:47:21,639 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2022-02-24 00:47:21,639 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:47:21,639 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1401705705] [2022-02-24 00:47:21,639 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1401705705] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:47:21,639 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:47:21,639 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-24 00:47:21,639 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877517617] [2022-02-24 00:47:21,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:47:21,641 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-24 00:47:21,641 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:47:21,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-24 00:47:21,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 00:47:21,641 INFO L87 Difference]: Start difference. First operand 1107 states and 1604 transitions. Second operand has 4 states, 4 states have (on average 21.0) internal successors, (84), 3 states have internal predecessors, (84), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:47:24,223 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 [] [2022-02-24 00:47:24,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:47:24,771 INFO L93 Difference]: Finished difference Result 2190 states and 3181 transitions. [2022-02-24 00:47:24,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-24 00:47:24,771 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 3 states have internal predecessors, (84), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 155 [2022-02-24 00:47:24,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:47:24,774 INFO L225 Difference]: With dead ends: 2190 [2022-02-24 00:47:24,774 INFO L226 Difference]: Without dead ends: 1109 [2022-02-24 00:47:24,775 INFO L932 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 [2022-02-24 00:47:24,775 INFO L933 BasicCegarLoop]: 213 mSDtfsCounter, 4 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 240 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 398 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-02-24 00:47:24,776 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 398 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 240 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-02-24 00:47:24,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1109 states. [2022-02-24 00:47:24,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1109 to 1109. [2022-02-24 00:47:24,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1109 states, 1104 states have (on average 1.451086956521739) internal successors, (1602), 1104 states have internal predecessors, (1602), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:47:24,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1109 states to 1109 states and 1606 transitions. [2022-02-24 00:47:24,791 INFO L78 Accepts]: Start accepts. Automaton has 1109 states and 1606 transitions. Word has length 155 [2022-02-24 00:47:24,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:47:24,791 INFO L470 AbstractCegarLoop]: Abstraction has 1109 states and 1606 transitions. [2022-02-24 00:47:24,791 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 3 states have internal predecessors, (84), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:47:24,791 INFO L276 IsEmpty]: Start isEmpty. Operand 1109 states and 1606 transitions. [2022-02-24 00:47:24,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-02-24 00:47:24,794 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:47:24,794 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:47:24,794 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-02-24 00:47:24,794 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:47:24,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:47:24,794 INFO L85 PathProgramCache]: Analyzing trace with hash -1040554030, now seen corresponding path program 1 times [2022-02-24 00:47:24,794 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:47:24,794 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533339070] [2022-02-24 00:47:24,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:47:24,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:47:24,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:47:24,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:47:24,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:47:24,916 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2022-02-24 00:47:24,916 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:47:24,916 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1533339070] [2022-02-24 00:47:24,916 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1533339070] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:47:24,917 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:47:24,917 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-24 00:47:24,917 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856416542] [2022-02-24 00:47:24,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:47:24,917 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-24 00:47:24,917 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:47:24,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-24 00:47:24,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 00:47:24,917 INFO L87 Difference]: Start difference. First operand 1109 states and 1606 transitions. Second operand has 4 states, 4 states have (on average 27.0) internal successors, (108), 3 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:47:26,915 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:47:28,944 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:47:30,964 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:47:31,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:47:31,402 INFO L93 Difference]: Finished difference Result 2732 states and 3976 transitions. [2022-02-24 00:47:31,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-24 00:47:31,402 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 3 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 173 [2022-02-24 00:47:31,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:47:31,406 INFO L225 Difference]: With dead ends: 2732 [2022-02-24 00:47:31,406 INFO L226 Difference]: Without dead ends: 1651 [2022-02-24 00:47:31,408 INFO L932 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 [2022-02-24 00:47:31,408 INFO L933 BasicCegarLoop]: 384 mSDtfsCounter, 141 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 425 mSolverCounterSat, 10 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 578 SdHoareTripleChecker+Invalid, 437 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 425 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2022-02-24 00:47:31,408 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [141 Valid, 578 Invalid, 437 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 425 Invalid, 2 Unknown, 0 Unchecked, 6.5s Time] [2022-02-24 00:47:31,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1651 states. [2022-02-24 00:47:31,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1651 to 1651. [2022-02-24 00:47:31,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1651 states, 1646 states have (on average 1.451397326852977) internal successors, (2389), 1646 states have internal predecessors, (2389), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:47:31,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1651 states to 1651 states and 2393 transitions. [2022-02-24 00:47:31,430 INFO L78 Accepts]: Start accepts. Automaton has 1651 states and 2393 transitions. Word has length 173 [2022-02-24 00:47:31,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:47:31,430 INFO L470 AbstractCegarLoop]: Abstraction has 1651 states and 2393 transitions. [2022-02-24 00:47:31,430 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 3 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:47:31,430 INFO L276 IsEmpty]: Start isEmpty. Operand 1651 states and 2393 transitions. [2022-02-24 00:47:31,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2022-02-24 00:47:31,432 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:47:31,432 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:47:31,433 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-02-24 00:47:31,433 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:47:31,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:47:31,433 INFO L85 PathProgramCache]: Analyzing trace with hash -865236792, now seen corresponding path program 1 times [2022-02-24 00:47:31,433 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:47:31,433 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633489612] [2022-02-24 00:47:31,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:47:31,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:47:31,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:47:31,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:47:31,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:47:31,554 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 160 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-02-24 00:47:31,554 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:47:31,554 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633489612] [2022-02-24 00:47:31,554 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [633489612] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:47:31,555 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:47:31,555 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-24 00:47:31,555 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999615448] [2022-02-24 00:47:31,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:47:31,555 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-24 00:47:31,555 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:47:31,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-24 00:47:31,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 00:47:31,555 INFO L87 Difference]: Start difference. First operand 1651 states and 2393 transitions. Second operand has 4 states, 4 states have (on average 36.0) internal successors, (144), 3 states have internal predecessors, (144), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:47:33,571 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 [] [2022-02-24 00:47:34,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:47:34,005 INFO L93 Difference]: Finished difference Result 3784 states and 5503 transitions. [2022-02-24 00:47:34,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-24 00:47:34,006 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 36.0) internal successors, (144), 3 states have internal predecessors, (144), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 174 [2022-02-24 00:47:34,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:47:34,011 INFO L225 Difference]: With dead ends: 3784 [2022-02-24 00:47:34,011 INFO L226 Difference]: Without dead ends: 2161 [2022-02-24 00:47:34,013 INFO L932 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 [2022-02-24 00:47:34,013 INFO L933 BasicCegarLoop]: 378 mSDtfsCounter, 138 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 418 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 572 SdHoareTripleChecker+Invalid, 429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 418 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-24 00:47:34,014 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [138 Valid, 572 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 418 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-24 00:47:34,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2161 states. [2022-02-24 00:47:34,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2161 to 2161. [2022-02-24 00:47:34,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2161 states, 2156 states have (on average 1.4512987012987013) internal successors, (3129), 2156 states have internal predecessors, (3129), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:47:34,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2161 states to 2161 states and 3133 transitions. [2022-02-24 00:47:34,042 INFO L78 Accepts]: Start accepts. Automaton has 2161 states and 3133 transitions. Word has length 174 [2022-02-24 00:47:34,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:47:34,042 INFO L470 AbstractCegarLoop]: Abstraction has 2161 states and 3133 transitions. [2022-02-24 00:47:34,042 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.0) internal successors, (144), 3 states have internal predecessors, (144), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:47:34,042 INFO L276 IsEmpty]: Start isEmpty. Operand 2161 states and 3133 transitions. [2022-02-24 00:47:34,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2022-02-24 00:47:34,045 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:47:34,046 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2022-02-24 00:47:34,046 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-02-24 00:47:34,046 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:47:34,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:47:34,046 INFO L85 PathProgramCache]: Analyzing trace with hash 1896913379, now seen corresponding path program 1 times [2022-02-24 00:47:34,046 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:47:34,046 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977028859] [2022-02-24 00:47:34,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:47:34,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:47:34,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:47:34,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:47:34,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:47:34,208 INFO L134 CoverageAnalysis]: Checked inductivity of 506 backedges. 307 proven. 0 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2022-02-24 00:47:34,208 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:47:34,208 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [977028859] [2022-02-24 00:47:34,208 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [977028859] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:47:34,208 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:47:34,208 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-24 00:47:34,208 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453170968] [2022-02-24 00:47:34,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:47:34,209 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-24 00:47:34,209 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:47:34,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-24 00:47:34,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 00:47:34,210 INFO L87 Difference]: Start difference. First operand 2161 states and 3133 transitions. Second operand has 4 states, 4 states have (on average 39.75) internal successors, (159), 3 states have internal predecessors, (159), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:47:36,225 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 [] [2022-02-24 00:47:36,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:47:36,499 INFO L93 Difference]: Finished difference Result 4842 states and 7039 transitions. [2022-02-24 00:47:36,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-24 00:47:36,499 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.75) internal successors, (159), 3 states have internal predecessors, (159), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 257 [2022-02-24 00:47:36,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:47:36,506 INFO L225 Difference]: With dead ends: 4842 [2022-02-24 00:47:36,506 INFO L226 Difference]: Without dead ends: 2709 [2022-02-24 00:47:36,508 INFO L932 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 [2022-02-24 00:47:36,509 INFO L933 BasicCegarLoop]: 197 mSDtfsCounter, 151 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 248 mSolverCounterSat, 15 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 248 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-02-24 00:47:36,509 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [151 Valid, 382 Invalid, 264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 248 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-02-24 00:47:36,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2709 states. [2022-02-24 00:47:36,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2709 to 2709. [2022-02-24 00:47:36,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2709 states, 2704 states have (on average 1.4530325443786982) internal successors, (3929), 2704 states have internal predecessors, (3929), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:47:36,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2709 states to 2709 states and 3933 transitions. [2022-02-24 00:47:36,544 INFO L78 Accepts]: Start accepts. Automaton has 2709 states and 3933 transitions. Word has length 257 [2022-02-24 00:47:36,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:47:36,544 INFO L470 AbstractCegarLoop]: Abstraction has 2709 states and 3933 transitions. [2022-02-24 00:47:36,544 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.75) internal successors, (159), 3 states have internal predecessors, (159), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:47:36,544 INFO L276 IsEmpty]: Start isEmpty. Operand 2709 states and 3933 transitions. [2022-02-24 00:47:36,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2022-02-24 00:47:36,548 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:47:36,548 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:47:36,549 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-02-24 00:47:36,549 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:47:36,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:47:36,549 INFO L85 PathProgramCache]: Analyzing trace with hash 503424760, now seen corresponding path program 1 times [2022-02-24 00:47:36,549 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:47:36,549 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677189630] [2022-02-24 00:47:36,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:47:36,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:47:36,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:47:36,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:47:36,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:47:36,708 INFO L134 CoverageAnalysis]: Checked inductivity of 715 backedges. 482 proven. 0 refuted. 0 times theorem prover too weak. 233 trivial. 0 not checked. [2022-02-24 00:47:36,710 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:47:36,710 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [677189630] [2022-02-24 00:47:36,710 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [677189630] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:47:36,710 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:47:36,710 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:47:36,710 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521753726] [2022-02-24 00:47:36,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:47:36,711 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:47:36,711 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:47:36,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:47:36,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:47:36,711 INFO L87 Difference]: Start difference. First operand 2709 states and 3933 transitions. Second operand has 5 states, 5 states have (on average 33.4) internal successors, (167), 4 states have internal predecessors, (167), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:47:38,720 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 [] [2022-02-24 00:47:39,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:47:39,141 INFO L93 Difference]: Finished difference Result 5743 states and 8310 transitions. [2022-02-24 00:47:39,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:47:39,142 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.4) internal successors, (167), 4 states have internal predecessors, (167), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 298 [2022-02-24 00:47:39,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:47:39,161 INFO L225 Difference]: With dead ends: 5743 [2022-02-24 00:47:39,161 INFO L226 Difference]: Without dead ends: 3062 [2022-02-24 00:47:39,164 INFO L932 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 [2022-02-24 00:47:39,165 INFO L933 BasicCegarLoop]: 257 mSDtfsCounter, 49 mSDsluCounter, 372 mSDsCounter, 0 mSdLazyCounter, 535 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 629 SdHoareTripleChecker+Invalid, 542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 535 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-24 00:47:39,165 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [49 Valid, 629 Invalid, 542 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 535 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-24 00:47:39,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3062 states. [2022-02-24 00:47:39,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3062 to 2914. [2022-02-24 00:47:39,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2914 states, 2909 states have (on average 1.450326572705397) internal successors, (4219), 2909 states have internal predecessors, (4219), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:47:39,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2914 states to 2914 states and 4223 transitions. [2022-02-24 00:47:39,227 INFO L78 Accepts]: Start accepts. Automaton has 2914 states and 4223 transitions. Word has length 298 [2022-02-24 00:47:39,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:47:39,228 INFO L470 AbstractCegarLoop]: Abstraction has 2914 states and 4223 transitions. [2022-02-24 00:47:39,228 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.4) internal successors, (167), 4 states have internal predecessors, (167), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:47:39,228 INFO L276 IsEmpty]: Start isEmpty. Operand 2914 states and 4223 transitions. [2022-02-24 00:47:39,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2022-02-24 00:47:39,231 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:47:39,232 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:47:39,232 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-02-24 00:47:39,232 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:47:39,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:47:39,232 INFO L85 PathProgramCache]: Analyzing trace with hash -1861311687, now seen corresponding path program 1 times [2022-02-24 00:47:39,232 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:47:39,232 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405389935] [2022-02-24 00:47:39,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:47:39,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:47:39,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:47:39,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:47:39,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:47:39,359 INFO L134 CoverageAnalysis]: Checked inductivity of 715 backedges. 203 proven. 0 refuted. 0 times theorem prover too weak. 512 trivial. 0 not checked. [2022-02-24 00:47:39,359 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:47:39,360 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405389935] [2022-02-24 00:47:39,360 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1405389935] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:47:39,360 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:47:39,360 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-24 00:47:39,361 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948832682] [2022-02-24 00:47:39,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:47:39,361 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-24 00:47:39,361 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:47:39,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-24 00:47:39,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 00:47:39,362 INFO L87 Difference]: Start difference. First operand 2914 states and 4223 transitions. Second operand has 4 states, 4 states have (on average 30.25) internal successors, (121), 3 states have internal predecessors, (121), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:47:40,453 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 [] [2022-02-24 00:47:42,932 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 [] [2022-02-24 00:47:43,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:47:43,379 INFO L93 Difference]: Finished difference Result 6384 states and 9270 transitions. [2022-02-24 00:47:43,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-24 00:47:43,380 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 3 states have internal predecessors, (121), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 298 [2022-02-24 00:47:43,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:47:43,386 INFO L225 Difference]: With dead ends: 6384 [2022-02-24 00:47:43,386 INFO L226 Difference]: Without dead ends: 3498 [2022-02-24 00:47:43,389 INFO L932 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 [2022-02-24 00:47:43,390 INFO L933 BasicCegarLoop]: 384 mSDtfsCounter, 141 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 428 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 578 SdHoareTripleChecker+Invalid, 440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 428 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-02-24 00:47:43,390 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [141 Valid, 578 Invalid, 440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 428 Invalid, 1 Unknown, 0 Unchecked, 3.9s Time] [2022-02-24 00:47:43,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3498 states. [2022-02-24 00:47:43,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3498 to 3498. [2022-02-24 00:47:43,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3498 states, 3493 states have (on average 1.450042943028915) internal successors, (5065), 3493 states have internal predecessors, (5065), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:47:43,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3498 states to 3498 states and 5069 transitions. [2022-02-24 00:47:43,450 INFO L78 Accepts]: Start accepts. Automaton has 3498 states and 5069 transitions. Word has length 298 [2022-02-24 00:47:43,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:47:43,451 INFO L470 AbstractCegarLoop]: Abstraction has 3498 states and 5069 transitions. [2022-02-24 00:47:43,451 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 3 states have internal predecessors, (121), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:47:43,451 INFO L276 IsEmpty]: Start isEmpty. Operand 3498 states and 5069 transitions. [2022-02-24 00:47:43,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 300 [2022-02-24 00:47:43,456 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:47:43,456 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 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] [2022-02-24 00:47:43,456 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-02-24 00:47:43,456 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:47:43,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:47:43,457 INFO L85 PathProgramCache]: Analyzing trace with hash 1063867079, now seen corresponding path program 1 times [2022-02-24 00:47:43,457 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:47:43,457 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786623581] [2022-02-24 00:47:43,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:47:43,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:47:43,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:47:43,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:47:43,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:47:43,611 INFO L134 CoverageAnalysis]: Checked inductivity of 715 backedges. 379 proven. 0 refuted. 0 times theorem prover too weak. 336 trivial. 0 not checked. [2022-02-24 00:47:43,612 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:47:43,612 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1786623581] [2022-02-24 00:47:43,612 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1786623581] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:47:43,612 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:47:43,612 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-24 00:47:43,612 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466887685] [2022-02-24 00:47:43,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:47:43,612 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-24 00:47:43,612 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:47:43,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-24 00:47:43,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 00:47:43,613 INFO L87 Difference]: Start difference. First operand 3498 states and 5069 transitions. Second operand has 4 states, 4 states have (on average 40.75) internal successors, (163), 3 states have internal predecessors, (163), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:47:45,525 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:47:47,360 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:47:48,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:47:48,667 INFO L93 Difference]: Finished difference Result 7520 states and 10915 transitions. [2022-02-24 00:47:48,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-24 00:47:48,667 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.75) internal successors, (163), 3 states have internal predecessors, (163), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 299 [2022-02-24 00:47:48,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:47:48,673 INFO L225 Difference]: With dead ends: 7520 [2022-02-24 00:47:48,674 INFO L226 Difference]: Without dead ends: 4050 [2022-02-24 00:47:48,678 INFO L932 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 [2022-02-24 00:47:48,678 INFO L933 BasicCegarLoop]: 384 mSDtfsCounter, 138 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 429 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 578 SdHoareTripleChecker+Invalid, 440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 429 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-02-24 00:47:48,678 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [138 Valid, 578 Invalid, 440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 429 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2022-02-24 00:47:48,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4050 states. [2022-02-24 00:47:48,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4050 to 4050. [2022-02-24 00:47:48,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4050 states, 4045 states have (on average 1.4496909765142152) internal successors, (5864), 4045 states have internal predecessors, (5864), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:47:48,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4050 states to 4050 states and 5868 transitions. [2022-02-24 00:47:48,756 INFO L78 Accepts]: Start accepts. Automaton has 4050 states and 5868 transitions. Word has length 299 [2022-02-24 00:47:48,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:47:48,756 INFO L470 AbstractCegarLoop]: Abstraction has 4050 states and 5868 transitions. [2022-02-24 00:47:48,756 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.75) internal successors, (163), 3 states have internal predecessors, (163), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:47:48,756 INFO L276 IsEmpty]: Start isEmpty. Operand 4050 states and 5868 transitions. [2022-02-24 00:47:48,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 385 [2022-02-24 00:47:48,762 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:47:48,762 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:47:48,762 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-02-24 00:47:48,763 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:47:48,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:47:48,763 INFO L85 PathProgramCache]: Analyzing trace with hash -836812725, now seen corresponding path program 1 times [2022-02-24 00:47:48,763 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:47:48,763 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111190976] [2022-02-24 00:47:48,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:47:48,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:47:48,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:47:48,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:47:48,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:47:48,933 INFO L134 CoverageAnalysis]: Checked inductivity of 1244 backedges. 529 proven. 0 refuted. 0 times theorem prover too weak. 715 trivial. 0 not checked. [2022-02-24 00:47:48,933 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:47:48,933 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111190976] [2022-02-24 00:47:48,933 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [111190976] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:47:48,933 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:47:48,933 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-24 00:47:48,933 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7899246] [2022-02-24 00:47:48,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:47:48,934 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-24 00:47:48,934 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:47:48,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-24 00:47:48,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 00:47:48,934 INFO L87 Difference]: Start difference. First operand 4050 states and 5868 transitions. Second operand has 4 states, 4 states have (on average 42.25) internal successors, (169), 3 states have internal predecessors, (169), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:47:51,658 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:47:51,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:47:51,960 INFO L93 Difference]: Finished difference Result 8661 states and 12567 transitions. [2022-02-24 00:47:51,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-24 00:47:51,960 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.25) internal successors, (169), 3 states have internal predecessors, (169), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 384 [2022-02-24 00:47:51,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:47:51,967 INFO L225 Difference]: With dead ends: 8661 [2022-02-24 00:47:51,967 INFO L226 Difference]: Without dead ends: 4639 [2022-02-24 00:47:51,972 INFO L932 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 [2022-02-24 00:47:51,972 INFO L933 BasicCegarLoop]: 194 mSDtfsCounter, 150 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 379 SdHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-02-24 00:47:51,972 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [150 Valid, 379 Invalid, 269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-02-24 00:47:51,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4639 states. [2022-02-24 00:47:52,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4639 to 4639. [2022-02-24 00:47:52,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4639 states, 4634 states have (on average 1.451230038843332) internal successors, (6725), 4634 states have internal predecessors, (6725), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:47:52,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4639 states to 4639 states and 6729 transitions. [2022-02-24 00:47:52,080 INFO L78 Accepts]: Start accepts. Automaton has 4639 states and 6729 transitions. Word has length 384 [2022-02-24 00:47:52,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:47:52,080 INFO L470 AbstractCegarLoop]: Abstraction has 4639 states and 6729 transitions. [2022-02-24 00:47:52,081 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.25) internal successors, (169), 3 states have internal predecessors, (169), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:47:52,081 INFO L276 IsEmpty]: Start isEmpty. Operand 4639 states and 6729 transitions. [2022-02-24 00:47:52,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 427 [2022-02-24 00:47:52,088 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:47:52,089 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:47:52,089 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-02-24 00:47:52,089 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:47:52,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:47:52,089 INFO L85 PathProgramCache]: Analyzing trace with hash 909790957, now seen corresponding path program 1 times [2022-02-24 00:47:52,089 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:47:52,089 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463291918] [2022-02-24 00:47:52,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:47:52,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:47:52,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:47:52,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:47:52,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:47:52,608 INFO L134 CoverageAnalysis]: Checked inductivity of 1565 backedges. 921 proven. 330 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2022-02-24 00:47:52,608 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:47:52,608 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [463291918] [2022-02-24 00:47:52,608 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [463291918] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-24 00:47:52,608 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1522875031] [2022-02-24 00:47:52,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:47:52,609 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-24 00:47:52,609 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-24 00:47:52,610 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) [2022-02-24 00:47:52,613 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-02-24 00:47:53,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:47:53,572 INFO L263 TraceCheckSpWp]: Trace formula consists of 2029 conjuncts, 37 conjunts are in the unsatisfiable core [2022-02-24 00:47:53,589 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-24 00:47:53,659 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-02-24 00:47:53,660 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-02-24 00:47:53,754 INFO L356 Elim1Store]: treesize reduction 36, result has 2.7 percent of original size [2022-02-24 00:47:53,755 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 28 treesize of output 10 [2022-02-24 00:47:53,967 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2022-02-24 00:47:54,105 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-02-24 00:47:54,133 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 19 [2022-02-24 00:47:54,136 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 13 [2022-02-24 00:47:54,164 INFO L356 Elim1Store]: treesize reduction 60, result has 39.4 percent of original size [2022-02-24 00:47:54,164 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 55 [2022-02-24 00:47:54,206 INFO L356 Elim1Store]: treesize reduction 64, result has 22.9 percent of original size [2022-02-24 00:47:54,206 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 34 treesize of output 36 [2022-02-24 00:47:54,411 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-02-24 00:47:54,412 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 11 [2022-02-24 00:47:54,549 INFO L134 CoverageAnalysis]: Checked inductivity of 1565 backedges. 950 proven. 126 refuted. 0 times theorem prover too weak. 489 trivial. 0 not checked. [2022-02-24 00:47:54,549 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-24 00:47:54,891 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 53 [2022-02-24 00:47:54,895 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 41 [2022-02-24 00:47:58,542 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 100 treesize of output 88 [2022-02-24 00:47:58,775 INFO L134 CoverageAnalysis]: Checked inductivity of 1565 backedges. 948 proven. 0 refuted. 0 times theorem prover too weak. 617 trivial. 0 not checked. [2022-02-24 00:47:58,776 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1522875031] provided 1 perfect and 1 imperfect interpolant sequences [2022-02-24 00:47:58,776 INFO L191 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-02-24 00:47:58,776 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [11, 13] total 23 [2022-02-24 00:47:58,776 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014262787] [2022-02-24 00:47:58,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:47:58,777 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-24 00:47:58,777 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:47:58,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-24 00:47:58,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=438, Unknown=1, NotChecked=0, Total=506 [2022-02-24 00:47:58,777 INFO L87 Difference]: Start difference. First operand 4639 states and 6729 transitions. Second operand has 7 states, 7 states have (on average 25.857142857142858) internal successors, (181), 7 states have internal predecessors, (181), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:48:00,784 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 [] [2022-02-24 00:48:09,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:48:09,580 INFO L93 Difference]: Finished difference Result 11901 states and 17269 transitions. [2022-02-24 00:48:09,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-24 00:48:09,581 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.857142857142858) internal successors, (181), 7 states have internal predecessors, (181), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 426 [2022-02-24 00:48:09,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:48:09,626 INFO L225 Difference]: With dead ends: 11901 [2022-02-24 00:48:09,626 INFO L226 Difference]: Without dead ends: 7290 [2022-02-24 00:48:09,631 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 872 GetRequests, 847 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 11.9s TimeCoverageRelationStatistics Valid=98, Invalid=601, Unknown=3, NotChecked=0, Total=702 [2022-02-24 00:48:09,632 INFO L933 BasicCegarLoop]: 230 mSDtfsCounter, 270 mSDsluCounter, 741 mSDsCounter, 0 mSdLazyCounter, 613 mSolverCounterSat, 86 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 270 SdHoareTripleChecker+Valid, 971 SdHoareTripleChecker+Invalid, 890 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 613 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 190 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-02-24 00:48:09,632 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [270 Valid, 971 Invalid, 890 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 613 Invalid, 1 Unknown, 190 Unchecked, 2.6s Time] [2022-02-24 00:48:09,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7290 states. [2022-02-24 00:48:09,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7290 to 6393. [2022-02-24 00:48:09,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6393 states, 6388 states have (on average 1.4600814026299311) internal successors, (9327), 6388 states have internal predecessors, (9327), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:48:09,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6393 states to 6393 states and 9331 transitions. [2022-02-24 00:48:09,735 INFO L78 Accepts]: Start accepts. Automaton has 6393 states and 9331 transitions. Word has length 426 [2022-02-24 00:48:09,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:48:09,735 INFO L470 AbstractCegarLoop]: Abstraction has 6393 states and 9331 transitions. [2022-02-24 00:48:09,735 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.857142857142858) internal successors, (181), 7 states have internal predecessors, (181), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:48:09,735 INFO L276 IsEmpty]: Start isEmpty. Operand 6393 states and 9331 transitions. [2022-02-24 00:48:09,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 429 [2022-02-24 00:48:09,744 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:48:09,744 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 6, 6, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:48:09,770 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-02-24 00:48:09,959 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2022-02-24 00:48:09,960 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:48:09,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:48:09,960 INFO L85 PathProgramCache]: Analyzing trace with hash 972462257, now seen corresponding path program 1 times [2022-02-24 00:48:09,960 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:48:09,960 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102177712] [2022-02-24 00:48:09,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:48:09,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:48:10,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:48:10,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:48:10,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:48:10,144 INFO L134 CoverageAnalysis]: Checked inductivity of 1572 backedges. 1008 proven. 0 refuted. 0 times theorem prover too weak. 564 trivial. 0 not checked. [2022-02-24 00:48:10,144 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:48:10,144 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102177712] [2022-02-24 00:48:10,144 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1102177712] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:48:10,144 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:48:10,144 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:48:10,144 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867297081] [2022-02-24 00:48:10,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:48:10,145 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:48:10,145 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:48:10,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:48:10,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:48:10,145 INFO L87 Difference]: Start difference. First operand 6393 states and 9331 transitions. Second operand has 5 states, 5 states have (on average 35.4) internal successors, (177), 4 states have internal predecessors, (177), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:48:11,567 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:48:14,247 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:48:16,274 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:48:16,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:48:16,845 INFO L93 Difference]: Finished difference Result 13071 states and 19017 transitions. [2022-02-24 00:48:16,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:48:16,845 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.4) internal successors, (177), 4 states have internal predecessors, (177), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 428 [2022-02-24 00:48:16,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:48:16,857 INFO L225 Difference]: With dead ends: 13071 [2022-02-24 00:48:16,857 INFO L226 Difference]: Without dead ends: 6706 [2022-02-24 00:48:16,864 INFO L932 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 [2022-02-24 00:48:16,865 INFO L933 BasicCegarLoop]: 256 mSDtfsCounter, 47 mSDsluCounter, 371 mSDsCounter, 0 mSdLazyCounter, 532 mSolverCounterSat, 6 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 627 SdHoareTripleChecker+Invalid, 540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 532 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2022-02-24 00:48:16,866 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [47 Valid, 627 Invalid, 540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 532 Invalid, 2 Unknown, 0 Unchecked, 6.6s Time] [2022-02-24 00:48:16,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6706 states. [2022-02-24 00:48:16,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6706 to 6401. [2022-02-24 00:48:16,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6401 states, 6396 states have (on average 1.4595059412132583) internal successors, (9335), 6396 states have internal predecessors, (9335), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:48:16,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6401 states to 6401 states and 9339 transitions. [2022-02-24 00:48:16,994 INFO L78 Accepts]: Start accepts. Automaton has 6401 states and 9339 transitions. Word has length 428 [2022-02-24 00:48:16,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:48:16,995 INFO L470 AbstractCegarLoop]: Abstraction has 6401 states and 9339 transitions. [2022-02-24 00:48:16,995 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.4) internal successors, (177), 4 states have internal predecessors, (177), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:48:16,995 INFO L276 IsEmpty]: Start isEmpty. Operand 6401 states and 9339 transitions. [2022-02-24 00:48:17,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 471 [2022-02-24 00:48:17,004 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:48:17,004 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:48:17,004 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-02-24 00:48:17,004 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:48:17,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:48:17,004 INFO L85 PathProgramCache]: Analyzing trace with hash -1597716625, now seen corresponding path program 1 times [2022-02-24 00:48:17,004 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:48:17,004 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1747596731] [2022-02-24 00:48:17,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:48:17,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:48:17,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:48:17,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:48:17,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:48:17,216 INFO L134 CoverageAnalysis]: Checked inductivity of 1959 backedges. 1114 proven. 0 refuted. 0 times theorem prover too weak. 845 trivial. 0 not checked. [2022-02-24 00:48:17,216 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:48:17,216 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1747596731] [2022-02-24 00:48:17,216 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1747596731] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:48:17,216 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:48:17,216 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:48:17,216 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669201782] [2022-02-24 00:48:17,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:48:17,218 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:48:17,218 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:48:17,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:48:17,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:48:17,218 INFO L87 Difference]: Start difference. First operand 6401 states and 9339 transitions. Second operand has 5 states, 5 states have (on average 32.6) internal successors, (163), 4 states have internal predecessors, (163), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:48:19,091 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:48:21,122 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:48:23,149 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:48:25,173 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:48:25,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:48:25,824 INFO L93 Difference]: Finished difference Result 13079 states and 19017 transitions. [2022-02-24 00:48:25,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:48:25,824 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.6) internal successors, (163), 4 states have internal predecessors, (163), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 470 [2022-02-24 00:48:25,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:48:25,876 INFO L225 Difference]: With dead ends: 13079 [2022-02-24 00:48:25,876 INFO L226 Difference]: Without dead ends: 6706 [2022-02-24 00:48:25,905 INFO L932 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 [2022-02-24 00:48:25,906 INFO L933 BasicCegarLoop]: 255 mSDtfsCounter, 66 mSDsluCounter, 370 mSDsCounter, 0 mSdLazyCounter, 530 mSolverCounterSat, 6 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 625 SdHoareTripleChecker+Invalid, 539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 530 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.5s IncrementalHoareTripleChecker+Time [2022-02-24 00:48:25,907 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [66 Valid, 625 Invalid, 539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 530 Invalid, 3 Unknown, 0 Unchecked, 8.5s Time] [2022-02-24 00:48:25,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6706 states. [2022-02-24 00:48:26,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6706 to 6401. [2022-02-24 00:48:26,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6401 states, 6396 states have (on average 1.4576297686053783) internal successors, (9323), 6396 states have internal predecessors, (9323), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:48:26,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6401 states to 6401 states and 9327 transitions. [2022-02-24 00:48:26,155 INFO L78 Accepts]: Start accepts. Automaton has 6401 states and 9327 transitions. Word has length 470 [2022-02-24 00:48:26,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:48:26,155 INFO L470 AbstractCegarLoop]: Abstraction has 6401 states and 9327 transitions. [2022-02-24 00:48:26,155 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.6) internal successors, (163), 4 states have internal predecessors, (163), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:48:26,155 INFO L276 IsEmpty]: Start isEmpty. Operand 6401 states and 9327 transitions. [2022-02-24 00:48:26,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 473 [2022-02-24 00:48:26,164 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:48:26,164 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 11, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:48:26,164 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-02-24 00:48:26,164 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:48:26,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:48:26,165 INFO L85 PathProgramCache]: Analyzing trace with hash -872562479, now seen corresponding path program 1 times [2022-02-24 00:48:26,165 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:48:26,165 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223065320] [2022-02-24 00:48:26,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:48:26,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:48:26,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:48:26,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:48:26,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:48:26,379 INFO L134 CoverageAnalysis]: Checked inductivity of 1978 backedges. 1127 proven. 0 refuted. 0 times theorem prover too weak. 851 trivial. 0 not checked. [2022-02-24 00:48:26,379 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:48:26,379 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1223065320] [2022-02-24 00:48:26,379 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1223065320] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:48:26,379 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:48:26,380 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:48:26,380 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615755339] [2022-02-24 00:48:26,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:48:26,380 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:48:26,380 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:48:26,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:48:26,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:48:26,380 INFO L87 Difference]: Start difference. First operand 6401 states and 9327 transitions. Second operand has 5 states, 5 states have (on average 32.8) internal successors, (164), 4 states have internal predecessors, (164), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:48:28,388 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 [] [2022-02-24 00:48:28,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:48:28,949 INFO L93 Difference]: Finished difference Result 13031 states and 18927 transitions. [2022-02-24 00:48:28,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:48:28,950 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.8) internal successors, (164), 4 states have internal predecessors, (164), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 472 [2022-02-24 00:48:28,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:48:28,958 INFO L225 Difference]: With dead ends: 13031 [2022-02-24 00:48:28,958 INFO L226 Difference]: Without dead ends: 6658 [2022-02-24 00:48:28,964 INFO L932 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 [2022-02-24 00:48:28,965 INFO L933 BasicCegarLoop]: 251 mSDtfsCounter, 60 mSDsluCounter, 366 mSDsCounter, 0 mSdLazyCounter, 514 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 617 SdHoareTripleChecker+Invalid, 521 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 514 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-24 00:48:28,965 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [60 Valid, 617 Invalid, 521 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 514 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-24 00:48:28,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6658 states. [2022-02-24 00:48:29,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6658 to 6401. [2022-02-24 00:48:29,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6401 states, 6396 states have (on average 1.4557535959974985) internal successors, (9311), 6396 states have internal predecessors, (9311), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:48:29,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6401 states to 6401 states and 9315 transitions. [2022-02-24 00:48:29,117 INFO L78 Accepts]: Start accepts. Automaton has 6401 states and 9315 transitions. Word has length 472 [2022-02-24 00:48:29,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:48:29,117 INFO L470 AbstractCegarLoop]: Abstraction has 6401 states and 9315 transitions. [2022-02-24 00:48:29,118 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.8) internal successors, (164), 4 states have internal predecessors, (164), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:48:29,118 INFO L276 IsEmpty]: Start isEmpty. Operand 6401 states and 9315 transitions. [2022-02-24 00:48:29,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 473 [2022-02-24 00:48:29,127 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:48:29,127 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 11, 11, 11, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:48:29,127 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-02-24 00:48:29,128 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:48:29,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:48:29,128 INFO L85 PathProgramCache]: Analyzing trace with hash -128117199, now seen corresponding path program 1 times [2022-02-24 00:48:29,128 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:48:29,128 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102472552] [2022-02-24 00:48:29,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:48:29,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:48:29,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:48:29,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:48:29,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:48:29,362 INFO L134 CoverageAnalysis]: Checked inductivity of 2004 backedges. 1238 proven. 46 refuted. 0 times theorem prover too weak. 720 trivial. 0 not checked. [2022-02-24 00:48:29,362 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:48:29,362 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2102472552] [2022-02-24 00:48:29,362 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2102472552] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-24 00:48:29,362 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [694841291] [2022-02-24 00:48:29,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:48:29,362 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-24 00:48:29,362 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-24 00:48:29,364 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-24 00:48:29,365 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-02-24 00:48:30,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:48:30,376 INFO L263 TraceCheckSpWp]: Trace formula consists of 2213 conjuncts, 23 conjunts are in the unsatisfiable core [2022-02-24 00:48:30,411 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-24 00:48:30,452 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-02-24 00:48:30,452 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-02-24 00:48:30,496 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-02-24 00:48:30,497 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2022-02-24 00:48:30,566 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2022-02-24 00:48:30,715 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-02-24 00:48:30,715 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-02-24 00:48:30,789 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-02-24 00:48:31,054 INFO L134 CoverageAnalysis]: Checked inductivity of 2004 backedges. 1233 proven. 126 refuted. 0 times theorem prover too weak. 645 trivial. 0 not checked. [2022-02-24 00:48:31,054 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-24 00:48:31,604 INFO L134 CoverageAnalysis]: Checked inductivity of 2004 backedges. 1254 proven. 0 refuted. 0 times theorem prover too weak. 750 trivial. 0 not checked. [2022-02-24 00:48:31,604 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [694841291] provided 1 perfect and 1 imperfect interpolant sequences [2022-02-24 00:48:31,604 INFO L191 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-02-24 00:48:31,605 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8, 8] total 11 [2022-02-24 00:48:31,605 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081110992] [2022-02-24 00:48:31,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:48:31,605 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-24 00:48:31,605 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:48:31,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-24 00:48:31,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-02-24 00:48:31,606 INFO L87 Difference]: Start difference. First operand 6401 states and 9315 transitions. Second operand has 4 states, 4 states have (on average 46.0) internal successors, (184), 4 states have internal predecessors, (184), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:48:33,456 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:48:33,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:48:33,799 INFO L93 Difference]: Finished difference Result 13483 states and 19567 transitions. [2022-02-24 00:48:33,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-24 00:48:33,800 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 46.0) internal successors, (184), 4 states have internal predecessors, (184), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 472 [2022-02-24 00:48:33,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:48:33,808 INFO L225 Difference]: With dead ends: 13483 [2022-02-24 00:48:33,808 INFO L226 Difference]: Without dead ends: 7110 [2022-02-24 00:48:33,816 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 954 GetRequests, 944 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2022-02-24 00:48:33,816 INFO L933 BasicCegarLoop]: 191 mSDtfsCounter, 104 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 248 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 489 SdHoareTripleChecker+Invalid, 293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-02-24 00:48:33,816 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [104 Valid, 489 Invalid, 293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 248 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-02-24 00:48:33,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7110 states. [2022-02-24 00:48:33,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7110 to 6408. [2022-02-24 00:48:33,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6408 states, 6403 states have (on average 1.454005934718101) internal successors, (9310), 6403 states have internal predecessors, (9310), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:48:33,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6408 states to 6408 states and 9314 transitions. [2022-02-24 00:48:33,939 INFO L78 Accepts]: Start accepts. Automaton has 6408 states and 9314 transitions. Word has length 472 [2022-02-24 00:48:33,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:48:33,940 INFO L470 AbstractCegarLoop]: Abstraction has 6408 states and 9314 transitions. [2022-02-24 00:48:33,940 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 46.0) internal successors, (184), 4 states have internal predecessors, (184), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:48:33,940 INFO L276 IsEmpty]: Start isEmpty. Operand 6408 states and 9314 transitions. [2022-02-24 00:48:33,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 475 [2022-02-24 00:48:33,948 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:48:33,948 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 11, 11, 11, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 6, 6, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-02-24 00:48:33,973 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-02-24 00:48:34,161 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2022-02-24 00:48:34,161 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:48:34,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:48:34,161 INFO L85 PathProgramCache]: Analyzing trace with hash -1834067689, now seen corresponding path program 1 times [2022-02-24 00:48:34,161 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:48:34,162 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986255180] [2022-02-24 00:48:34,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:48:34,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:48:34,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:48:34,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:48:34,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:48:34,377 INFO L134 CoverageAnalysis]: Checked inductivity of 2011 backedges. 1185 proven. 0 refuted. 0 times theorem prover too weak. 826 trivial. 0 not checked. [2022-02-24 00:48:34,377 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:48:34,378 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986255180] [2022-02-24 00:48:34,378 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1986255180] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:48:34,378 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:48:34,378 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:48:34,378 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4911982] [2022-02-24 00:48:34,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:48:34,378 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:48:34,378 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:48:34,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:48:34,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:48:34,379 INFO L87 Difference]: Start difference. First operand 6408 states and 9314 transitions. Second operand has 5 states, 5 states have (on average 33.8) internal successors, (169), 4 states have internal predecessors, (169), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:48:35,844 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:48:37,867 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:48:39,139 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:48:41,162 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:48:41,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:48:41,649 INFO L93 Difference]: Finished difference Result 13258 states and 19258 transitions. [2022-02-24 00:48:41,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:48:41,650 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.8) internal successors, (169), 4 states have internal predecessors, (169), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 474 [2022-02-24 00:48:41,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:48:41,657 INFO L225 Difference]: With dead ends: 13258 [2022-02-24 00:48:41,657 INFO L226 Difference]: Without dead ends: 6878 [2022-02-24 00:48:41,662 INFO L932 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 [2022-02-24 00:48:41,663 INFO L933 BasicCegarLoop]: 238 mSDtfsCounter, 27 mSDsluCounter, 353 mSDsCounter, 0 mSdLazyCounter, 440 mSolverCounterSat, 5 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 591 SdHoareTripleChecker+Invalid, 447 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 440 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2022-02-24 00:48:41,663 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [27 Valid, 591 Invalid, 447 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 440 Invalid, 2 Unknown, 0 Unchecked, 7.2s Time] [2022-02-24 00:48:41,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6878 states. [2022-02-24 00:48:41,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6878 to 6720. [2022-02-24 00:48:41,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6720 states, 6715 states have (on average 1.4525688756515265) internal successors, (9754), 6715 states have internal predecessors, (9754), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:48:41,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6720 states to 6720 states and 9758 transitions. [2022-02-24 00:48:41,768 INFO L78 Accepts]: Start accepts. Automaton has 6720 states and 9758 transitions. Word has length 474 [2022-02-24 00:48:41,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:48:41,769 INFO L470 AbstractCegarLoop]: Abstraction has 6720 states and 9758 transitions. [2022-02-24 00:48:41,769 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.8) internal successors, (169), 4 states have internal predecessors, (169), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:48:41,769 INFO L276 IsEmpty]: Start isEmpty. Operand 6720 states and 9758 transitions. [2022-02-24 00:48:41,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 485 [2022-02-24 00:48:41,777 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:48:41,778 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 9, 9, 9, 9, 9, 9, 9, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:48:41,778 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-02-24 00:48:41,778 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:48:41,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:48:41,778 INFO L85 PathProgramCache]: Analyzing trace with hash 895560963, now seen corresponding path program 1 times [2022-02-24 00:48:41,778 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:48:41,778 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398431701] [2022-02-24 00:48:41,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:48:41,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:48:41,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:48:42,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:48:42,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:48:42,402 INFO L134 CoverageAnalysis]: Checked inductivity of 2136 backedges. 1059 proven. 854 refuted. 0 times theorem prover too weak. 223 trivial. 0 not checked. [2022-02-24 00:48:42,402 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:48:42,402 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [398431701] [2022-02-24 00:48:42,402 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [398431701] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-24 00:48:42,402 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [430721346] [2022-02-24 00:48:42,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:48:42,403 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-24 00:48:42,403 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-24 00:48:42,404 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-24 00:48:42,405 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-02-24 00:48:43,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:48:43,512 INFO L263 TraceCheckSpWp]: Trace formula consists of 2213 conjuncts, 27 conjunts are in the unsatisfiable core [2022-02-24 00:48:43,520 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-24 00:48:43,557 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-02-24 00:48:43,558 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-02-24 00:48:43,615 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-02-24 00:48:43,615 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2022-02-24 00:48:43,724 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-02-24 00:48:43,732 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 19 [2022-02-24 00:48:43,735 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 13 [2022-02-24 00:48:43,749 INFO L356 Elim1Store]: treesize reduction 25, result has 43.2 percent of original size [2022-02-24 00:48:43,750 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 33 [2022-02-24 00:48:43,810 INFO L356 Elim1Store]: treesize reduction 66, result has 30.5 percent of original size [2022-02-24 00:48:43,810 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 45 [2022-02-24 00:48:43,878 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-02-24 00:48:43,878 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 23 [2022-02-24 00:48:46,006 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-02-24 00:48:46,007 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 11 [2022-02-24 00:48:46,316 INFO L134 CoverageAnalysis]: Checked inductivity of 2136 backedges. 1281 proven. 68 refuted. 0 times theorem prover too weak. 787 trivial. 0 not checked. [2022-02-24 00:48:46,316 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-24 00:48:46,965 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 26 [2022-02-24 00:48:46,967 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 20 [2022-02-24 00:48:49,913 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 72 [2022-02-24 00:48:49,916 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 70 [2022-02-24 00:48:49,918 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 64 [2022-02-24 00:48:50,037 INFO L134 CoverageAnalysis]: Checked inductivity of 2136 backedges. 1304 proven. 27 refuted. 0 times theorem prover too weak. 805 trivial. 0 not checked. [2022-02-24 00:48:50,037 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [430721346] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-24 00:48:50,037 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-24 00:48:50,037 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 9, 7] total 21 [2022-02-24 00:48:50,037 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666821960] [2022-02-24 00:48:50,038 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-24 00:48:50,038 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-02-24 00:48:50,038 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:48:50,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-02-24 00:48:50,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=354, Unknown=2, NotChecked=0, Total=420 [2022-02-24 00:48:50,039 INFO L87 Difference]: Start difference. First operand 6720 states and 9758 transitions. Second operand has 21 states, 21 states have (on average 19.333333333333332) internal successors, (406), 20 states have internal predecessors, (406), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:48:51,896 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:48:53,928 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:48:56,909 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:48:58,936 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:49:00,961 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:49:02,985 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:49:04,072 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:49:06,087 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:49:08,113 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:49:09,334 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:49:21,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:49:21,185 INFO L93 Difference]: Finished difference Result 19886 states and 28692 transitions. [2022-02-24 00:49:21,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-24 00:49:21,185 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 19.333333333333332) internal successors, (406), 20 states have internal predecessors, (406), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 484 [2022-02-24 00:49:21,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:49:21,203 INFO L225 Difference]: With dead ends: 19886 [2022-02-24 00:49:21,204 INFO L226 Difference]: Without dead ends: 13194 [2022-02-24 00:49:21,214 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1024 GetRequests, 985 SyntacticMatches, 1 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 273 ImplicationChecksByTransitivity, 13.4s TimeCoverageRelationStatistics Valid=252, Invalid=1302, Unknown=6, NotChecked=0, Total=1560 [2022-02-24 00:49:21,214 INFO L933 BasicCegarLoop]: 371 mSDtfsCounter, 1227 mSDsluCounter, 3854 mSDsCounter, 0 mSdLazyCounter, 4208 mSolverCounterSat, 333 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1227 SdHoareTripleChecker+Valid, 4225 SdHoareTripleChecker+Invalid, 5067 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 333 IncrementalHoareTripleChecker+Valid, 4208 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 519 IncrementalHoareTripleChecker+Unchecked, 22.6s IncrementalHoareTripleChecker+Time [2022-02-24 00:49:21,215 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1227 Valid, 4225 Invalid, 5067 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [333 Valid, 4208 Invalid, 7 Unknown, 519 Unchecked, 22.6s Time] [2022-02-24 00:49:21,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13194 states. [2022-02-24 00:49:21,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13194 to 7754. [2022-02-24 00:49:21,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7754 states, 7749 states have (on average 1.4502516453735965) internal successors, (11238), 7749 states have internal predecessors, (11238), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:49:21,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7754 states to 7754 states and 11242 transitions. [2022-02-24 00:49:21,402 INFO L78 Accepts]: Start accepts. Automaton has 7754 states and 11242 transitions. Word has length 484 [2022-02-24 00:49:21,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:49:21,402 INFO L470 AbstractCegarLoop]: Abstraction has 7754 states and 11242 transitions. [2022-02-24 00:49:21,402 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 19.333333333333332) internal successors, (406), 20 states have internal predecessors, (406), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:49:21,403 INFO L276 IsEmpty]: Start isEmpty. Operand 7754 states and 11242 transitions. [2022-02-24 00:49:21,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 485 [2022-02-24 00:49:21,412 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:49:21,412 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 6, 6, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:49:21,436 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-02-24 00:49:21,635 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-24 00:49:21,636 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:49:21,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:49:21,636 INFO L85 PathProgramCache]: Analyzing trace with hash 1405695153, now seen corresponding path program 1 times [2022-02-24 00:49:21,636 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:49:21,636 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372588455] [2022-02-24 00:49:21,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:49:21,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:49:21,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:49:21,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:49:21,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:49:21,805 INFO L134 CoverageAnalysis]: Checked inductivity of 2034 backedges. 1210 proven. 0 refuted. 0 times theorem prover too weak. 824 trivial. 0 not checked. [2022-02-24 00:49:21,805 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:49:21,805 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [372588455] [2022-02-24 00:49:21,805 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [372588455] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:49:21,805 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:49:21,805 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:49:21,805 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988869595] [2022-02-24 00:49:21,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:49:21,806 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:49:21,806 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:49:21,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:49:21,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:49:21,806 INFO L87 Difference]: Start difference. First operand 7754 states and 11242 transitions. Second operand has 5 states, 5 states have (on average 35.8) internal successors, (179), 4 states have internal predecessors, (179), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:49:23,819 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 [] [2022-02-24 00:49:24,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:49:24,361 INFO L93 Difference]: Finished difference Result 15776 states and 22872 transitions. [2022-02-24 00:49:24,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:49:24,361 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 4 states have internal predecessors, (179), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 484 [2022-02-24 00:49:24,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:49:24,370 INFO L225 Difference]: With dead ends: 15776 [2022-02-24 00:49:24,370 INFO L226 Difference]: Without dead ends: 8050 [2022-02-24 00:49:24,376 INFO L932 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 [2022-02-24 00:49:24,376 INFO L933 BasicCegarLoop]: 230 mSDtfsCounter, 38 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 463 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 576 SdHoareTripleChecker+Invalid, 469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 463 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-24 00:49:24,376 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 576 Invalid, 469 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 463 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-24 00:49:24,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8050 states. [2022-02-24 00:49:24,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8050 to 7754. [2022-02-24 00:49:24,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7754 states, 7749 states have (on average 1.4484449606400827) internal successors, (11224), 7749 states have internal predecessors, (11224), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:49:24,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7754 states to 7754 states and 11228 transitions. [2022-02-24 00:49:24,515 INFO L78 Accepts]: Start accepts. Automaton has 7754 states and 11228 transitions. Word has length 484 [2022-02-24 00:49:24,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:49:24,515 INFO L470 AbstractCegarLoop]: Abstraction has 7754 states and 11228 transitions. [2022-02-24 00:49:24,515 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 4 states have internal predecessors, (179), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:49:24,515 INFO L276 IsEmpty]: Start isEmpty. Operand 7754 states and 11228 transitions. [2022-02-24 00:49:24,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 485 [2022-02-24 00:49:24,525 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:49:24,525 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 9, 9, 9, 9, 9, 9, 9, 9, 6, 6, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:49:24,525 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-02-24 00:49:24,525 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:49:24,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:49:24,526 INFO L85 PathProgramCache]: Analyzing trace with hash -894388527, now seen corresponding path program 1 times [2022-02-24 00:49:24,526 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:49:24,526 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121828433] [2022-02-24 00:49:24,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:49:24,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:49:24,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:49:24,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:49:24,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:49:24,709 INFO L134 CoverageAnalysis]: Checked inductivity of 2124 backedges. 1280 proven. 0 refuted. 0 times theorem prover too weak. 844 trivial. 0 not checked. [2022-02-24 00:49:24,709 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:49:24,709 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [121828433] [2022-02-24 00:49:24,709 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [121828433] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:49:24,709 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:49:24,709 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:49:24,709 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421450068] [2022-02-24 00:49:24,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:49:24,710 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:49:24,710 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:49:24,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:49:24,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:49:24,710 INFO L87 Difference]: Start difference. First operand 7754 states and 11228 transitions. Second operand has 5 states, 5 states have (on average 34.6) internal successors, (173), 4 states have internal predecessors, (173), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:49:26,531 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 [] [2022-02-24 00:49:28,558 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:49:30,587 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:49:31,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:49:31,976 INFO L93 Difference]: Finished difference Result 16182 states and 23404 transitions. [2022-02-24 00:49:31,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:49:31,976 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 34.6) internal successors, (173), 4 states have internal predecessors, (173), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 484 [2022-02-24 00:49:31,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:49:31,986 INFO L225 Difference]: With dead ends: 16182 [2022-02-24 00:49:31,986 INFO L226 Difference]: Without dead ends: 8456 [2022-02-24 00:49:31,993 INFO L932 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 [2022-02-24 00:49:31,994 INFO L933 BasicCegarLoop]: 241 mSDtfsCounter, 32 mSDsluCounter, 356 mSDsCounter, 0 mSdLazyCounter, 479 mSolverCounterSat, 9 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 597 SdHoareTripleChecker+Invalid, 490 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 479 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2022-02-24 00:49:31,994 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [32 Valid, 597 Invalid, 490 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 479 Invalid, 2 Unknown, 0 Unchecked, 7.1s Time] [2022-02-24 00:49:31,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8456 states. [2022-02-24 00:49:32,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8456 to 8202. [2022-02-24 00:49:32,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8202 states, 8197 states have (on average 1.447846773209711) internal successors, (11868), 8197 states have internal predecessors, (11868), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:49:32,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8202 states to 8202 states and 11872 transitions. [2022-02-24 00:49:32,177 INFO L78 Accepts]: Start accepts. Automaton has 8202 states and 11872 transitions. Word has length 484 [2022-02-24 00:49:32,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:49:32,177 INFO L470 AbstractCegarLoop]: Abstraction has 8202 states and 11872 transitions. [2022-02-24 00:49:32,177 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 34.6) internal successors, (173), 4 states have internal predecessors, (173), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:49:32,177 INFO L276 IsEmpty]: Start isEmpty. Operand 8202 states and 11872 transitions. [2022-02-24 00:49:32,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 485 [2022-02-24 00:49:32,186 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:49:32,186 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 9, 9, 9, 9, 9, 9, 9, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:49:32,187 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-02-24 00:49:32,187 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:49:32,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:49:32,188 INFO L85 PathProgramCache]: Analyzing trace with hash -1692367487, now seen corresponding path program 1 times [2022-02-24 00:49:32,188 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:49:32,188 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817910059] [2022-02-24 00:49:32,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:49:32,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:49:32,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:49:34,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:49:34,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:49:34,110 INFO L134 CoverageAnalysis]: Checked inductivity of 2136 backedges. 59 proven. 2013 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2022-02-24 00:49:34,110 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:49:34,110 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1817910059] [2022-02-24 00:49:34,110 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1817910059] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-24 00:49:34,110 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [188470135] [2022-02-24 00:49:34,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:49:34,110 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-24 00:49:34,110 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-24 00:49:34,112 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-24 00:49:34,119 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-02-24 00:49:35,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:49:35,291 INFO L263 TraceCheckSpWp]: Trace formula consists of 2215 conjuncts, 102 conjunts are in the unsatisfiable core [2022-02-24 00:49:35,300 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-24 00:49:35,369 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-02-24 00:49:35,369 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-02-24 00:49:35,487 INFO L356 Elim1Store]: treesize reduction 36, result has 2.7 percent of original size [2022-02-24 00:49:35,487 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 28 treesize of output 10 [2022-02-24 00:49:35,628 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2022-02-24 00:49:35,760 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2022-02-24 00:49:35,877 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-02-24 00:49:35,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:49:35,940 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 44 [2022-02-24 00:49:35,963 INFO L356 Elim1Store]: treesize reduction 72, result has 40.0 percent of original size [2022-02-24 00:49:35,963 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 41 treesize of output 60 [2022-02-24 00:49:35,971 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-02-24 00:49:35,972 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 85 treesize of output 72 [2022-02-24 00:49:36,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:49:36,553 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 57 [2022-02-24 00:49:36,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:49:36,573 INFO L356 Elim1Store]: treesize reduction 127, result has 14.2 percent of original size [2022-02-24 00:49:36,573 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 59 treesize of output 49 [2022-02-24 00:49:36,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:49:36,578 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 51 [2022-02-24 00:49:36,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:49:36,636 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 51 [2022-02-24 00:49:36,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:49:36,657 INFO L356 Elim1Store]: treesize reduction 77, result has 35.8 percent of original size [2022-02-24 00:49:36,657 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 44 treesize of output 68 [2022-02-24 00:49:36,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:49:36,660 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 67 [2022-02-24 00:49:37,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:49:37,222 INFO L356 Elim1Store]: treesize reduction 60, result has 45.9 percent of original size [2022-02-24 00:49:37,222 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 160 treesize of output 155 [2022-02-24 00:49:37,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:49:37,250 INFO L356 Elim1Store]: treesize reduction 40, result has 49.4 percent of original size [2022-02-24 00:49:37,250 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 137 treesize of output 132 [2022-02-24 00:49:37,315 INFO L356 Elim1Store]: treesize reduction 45, result has 52.6 percent of original size [2022-02-24 00:49:37,315 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 40 treesize of output 73 [2022-02-24 00:49:38,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:49:38,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:49:38,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:49:38,566 INFO L356 Elim1Store]: treesize reduction 148, result has 30.2 percent of original size [2022-02-24 00:49:38,567 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 227 treesize of output 270 [2022-02-24 00:49:38,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:49:38,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:49:38,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:49:38,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:49:38,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:49:38,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:49:38,576 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 273 treesize of output 225 [2022-02-24 00:49:38,605 INFO L356 Elim1Store]: treesize reduction 154, result has 15.4 percent of original size [2022-02-24 00:49:38,605 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 273 treesize of output 225 [2022-02-24 00:49:41,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:49:41,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:49:41,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:49:41,608 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 222 treesize of output 182 [2022-02-24 00:49:41,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:49:41,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:49:41,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:49:41,614 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 222 treesize of output 182 [2022-02-24 00:49:41,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:49:41,634 INFO L356 Elim1Store]: treesize reduction 77, result has 35.8 percent of original size [2022-02-24 00:49:41,634 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 222 treesize of output 240 [2022-02-24 00:49:41,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:49:41,871 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 163 treesize of output 109 [2022-02-24 00:49:41,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:49:41,874 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 117 treesize of output 69 [2022-02-24 00:49:41,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:49:41,890 INFO L356 Elim1Store]: treesize reduction 100, result has 16.0 percent of original size [2022-02-24 00:49:41,890 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 63 treesize of output 59 [2022-02-24 00:49:41,937 INFO L356 Elim1Store]: treesize reduction 64, result has 22.9 percent of original size [2022-02-24 00:49:41,937 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 35 [2022-02-24 00:49:42,018 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-02-24 00:49:42,019 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 11 [2022-02-24 00:49:42,076 INFO L134 CoverageAnalysis]: Checked inductivity of 2136 backedges. 991 proven. 445 refuted. 0 times theorem prover too weak. 700 trivial. 0 not checked. [2022-02-24 00:49:42,077 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-24 00:49:45,065 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-24 00:49:45,066 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-24 00:49:45,070 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 268 treesize of output 214 [2022-02-24 00:49:47,647 INFO L134 CoverageAnalysis]: Checked inductivity of 2136 backedges. 1133 proven. 141 refuted. 0 times theorem prover too weak. 862 trivial. 0 not checked. [2022-02-24 00:49:47,647 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [188470135] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-24 00:49:47,647 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-24 00:49:47,647 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 20, 13] total 50 [2022-02-24 00:49:47,647 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879765743] [2022-02-24 00:49:47,647 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-24 00:49:47,648 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2022-02-24 00:49:47,648 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:49:47,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2022-02-24 00:49:47,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=272, Invalid=2177, Unknown=1, NotChecked=0, Total=2450 [2022-02-24 00:49:47,649 INFO L87 Difference]: Start difference. First operand 8202 states and 11872 transitions. Second operand has 50 states, 49 states have (on average 15.857142857142858) internal successors, (777), 48 states have internal predecessors, (777), 3 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:49:49,676 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 [] [2022-02-24 00:50:12,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:50:12,353 INFO L93 Difference]: Finished difference Result 42972 states and 61379 transitions. [2022-02-24 00:50:12,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 138 states. [2022-02-24 00:50:12,372 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 49 states have (on average 15.857142857142858) internal successors, (777), 48 states have internal predecessors, (777), 3 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 484 [2022-02-24 00:50:12,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:50:12,417 INFO L225 Difference]: With dead ends: 42972 [2022-02-24 00:50:12,417 INFO L226 Difference]: Without dead ends: 34777 [2022-02-24 00:50:12,435 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1224 GetRequests, 1040 SyntacticMatches, 10 SemanticMatches, 174 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10316 ImplicationChecksByTransitivity, 11.3s TimeCoverageRelationStatistics Valid=2926, Invalid=27873, Unknown=1, NotChecked=0, Total=30800 [2022-02-24 00:50:12,435 INFO L933 BasicCegarLoop]: 584 mSDtfsCounter, 2637 mSDsluCounter, 14313 mSDsCounter, 0 mSdLazyCounter, 15689 mSolverCounterSat, 483 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2637 SdHoareTripleChecker+Valid, 14897 SdHoareTripleChecker+Invalid, 18748 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 483 IncrementalHoareTripleChecker+Valid, 15689 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 2575 IncrementalHoareTripleChecker+Unchecked, 16.6s IncrementalHoareTripleChecker+Time [2022-02-24 00:50:12,435 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2637 Valid, 14897 Invalid, 18748 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [483 Valid, 15689 Invalid, 1 Unknown, 2575 Unchecked, 16.6s Time] [2022-02-24 00:50:12,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34777 states. [2022-02-24 00:50:13,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34777 to 22669. [2022-02-24 00:50:13,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22669 states, 22664 states have (on average 1.450891281327215) internal successors, (32883), 22664 states have internal predecessors, (32883), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:50:13,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22669 states to 22669 states and 32887 transitions. [2022-02-24 00:50:13,104 INFO L78 Accepts]: Start accepts. Automaton has 22669 states and 32887 transitions. Word has length 484 [2022-02-24 00:50:13,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:50:13,105 INFO L470 AbstractCegarLoop]: Abstraction has 22669 states and 32887 transitions. [2022-02-24 00:50:13,105 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 49 states have (on average 15.857142857142858) internal successors, (777), 48 states have internal predecessors, (777), 3 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:50:13,105 INFO L276 IsEmpty]: Start isEmpty. Operand 22669 states and 32887 transitions. [2022-02-24 00:50:13,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 486 [2022-02-24 00:50:13,127 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:50:13,128 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 9, 9, 9, 9, 9, 9, 9, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:50:13,153 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-02-24 00:50:13,351 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-24 00:50:13,351 INFO L402 AbstractCegarLoop]: === Iteration 56 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:50:13,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:50:13,352 INFO L85 PathProgramCache]: Analyzing trace with hash 333843097, now seen corresponding path program 1 times [2022-02-24 00:50:13,352 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:50:13,352 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [315292382] [2022-02-24 00:50:13,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:50:13,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:50:13,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:50:13,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:50:13,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:50:13,525 INFO L134 CoverageAnalysis]: Checked inductivity of 2136 backedges. 1557 proven. 0 refuted. 0 times theorem prover too weak. 579 trivial. 0 not checked. [2022-02-24 00:50:13,526 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:50:13,526 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [315292382] [2022-02-24 00:50:13,526 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [315292382] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:50:13,526 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:50:13,526 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-24 00:50:13,526 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143278332] [2022-02-24 00:50:13,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:50:13,527 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-24 00:50:13,527 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:50:13,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-24 00:50:13,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 00:50:13,527 INFO L87 Difference]: Start difference. First operand 22669 states and 32887 transitions. Second operand has 4 states, 4 states have (on average 49.0) internal successors, (196), 3 states have internal predecessors, (196), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:50:16,366 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 [] [2022-02-24 00:50:18,391 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 [] [2022-02-24 00:50:19,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:50:19,512 INFO L93 Difference]: Finished difference Result 52526 states and 75827 transitions. [2022-02-24 00:50:19,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-24 00:50:19,513 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 49.0) internal successors, (196), 3 states have internal predecessors, (196), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 485 [2022-02-24 00:50:19,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:50:19,551 INFO L225 Difference]: With dead ends: 52526 [2022-02-24 00:50:19,552 INFO L226 Difference]: Without dead ends: 29885 [2022-02-24 00:50:19,568 INFO L932 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 [2022-02-24 00:50:19,568 INFO L933 BasicCegarLoop]: 375 mSDtfsCounter, 136 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 381 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 587 SdHoareTripleChecker+Invalid, 385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 381 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-02-24 00:50:19,569 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [136 Valid, 587 Invalid, 385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 381 Invalid, 2 Unknown, 0 Unchecked, 5.3s Time] [2022-02-24 00:50:19,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29885 states. [2022-02-24 00:50:20,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29885 to 29883. [2022-02-24 00:50:20,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29883 states, 29878 states have (on average 1.4371109177321106) internal successors, (42938), 29878 states have internal predecessors, (42938), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:50:20,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29883 states to 29883 states and 42942 transitions. [2022-02-24 00:50:20,398 INFO L78 Accepts]: Start accepts. Automaton has 29883 states and 42942 transitions. Word has length 485 [2022-02-24 00:50:20,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:50:20,398 INFO L470 AbstractCegarLoop]: Abstraction has 29883 states and 42942 transitions. [2022-02-24 00:50:20,398 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 49.0) internal successors, (196), 3 states have internal predecessors, (196), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:50:20,398 INFO L276 IsEmpty]: Start isEmpty. Operand 29883 states and 42942 transitions. [2022-02-24 00:50:20,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 487 [2022-02-24 00:50:20,432 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:50:20,432 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 9, 9, 9, 9, 9, 9, 9, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-02-24 00:50:20,432 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-02-24 00:50:20,432 INFO L402 AbstractCegarLoop]: === Iteration 57 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:50:20,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:50:20,432 INFO L85 PathProgramCache]: Analyzing trace with hash 58098956, now seen corresponding path program 1 times [2022-02-24 00:50:20,432 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:50:20,432 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993807283] [2022-02-24 00:50:20,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:50:20,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:50:21,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:50:23,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:50:23,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:50:23,631 INFO L134 CoverageAnalysis]: Checked inductivity of 2137 backedges. 407 proven. 1719 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-02-24 00:50:23,631 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:50:23,631 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993807283] [2022-02-24 00:50:23,632 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1993807283] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-24 00:50:23,632 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1851199715] [2022-02-24 00:50:23,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:50:23,632 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-24 00:50:23,632 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-24 00:50:23,633 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-24 00:50:23,634 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-02-24 00:50:24,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:50:24,721 INFO L263 TraceCheckSpWp]: Trace formula consists of 2296 conjuncts, 103 conjunts are in the unsatisfiable core [2022-02-24 00:50:24,730 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-24 00:50:24,791 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-02-24 00:50:24,791 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-02-24 00:50:24,919 INFO L356 Elim1Store]: treesize reduction 36, result has 2.7 percent of original size [2022-02-24 00:50:24,919 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 28 treesize of output 10 [2022-02-24 00:50:25,008 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2022-02-24 00:50:25,141 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2022-02-24 00:50:25,336 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-02-24 00:50:25,337 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2022-02-24 00:50:25,348 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-02-24 00:50:25,348 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2022-02-24 00:50:25,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:50:25,357 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 44 [2022-02-24 00:50:25,380 INFO L356 Elim1Store]: treesize reduction 72, result has 40.0 percent of original size [2022-02-24 00:50:25,381 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 41 treesize of output 60 [2022-02-24 00:50:25,389 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-02-24 00:50:25,389 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 73 treesize of output 66 [2022-02-24 00:50:26,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:50:26,034 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 57 [2022-02-24 00:50:26,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:50:26,053 INFO L356 Elim1Store]: treesize reduction 127, result has 14.2 percent of original size [2022-02-24 00:50:26,053 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 59 treesize of output 49 [2022-02-24 00:50:26,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:50:26,058 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 51 [2022-02-24 00:50:26,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:50:26,140 INFO L356 Elim1Store]: treesize reduction 77, result has 35.8 percent of original size [2022-02-24 00:50:26,141 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 44 treesize of output 68 [2022-02-24 00:50:26,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:50:26,148 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 67 [2022-02-24 00:50:26,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:50:26,153 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 67 [2022-02-24 00:50:26,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:50:26,866 INFO L356 Elim1Store]: treesize reduction 60, result has 45.9 percent of original size [2022-02-24 00:50:26,866 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 160 treesize of output 155 [2022-02-24 00:50:26,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:50:26,900 INFO L356 Elim1Store]: treesize reduction 40, result has 49.4 percent of original size [2022-02-24 00:50:26,901 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 137 treesize of output 132 [2022-02-24 00:50:26,945 INFO L356 Elim1Store]: treesize reduction 45, result has 52.6 percent of original size [2022-02-24 00:50:26,946 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 40 treesize of output 73 [2022-02-24 00:50:28,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:50:28,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:50:28,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:50:28,712 INFO L356 Elim1Store]: treesize reduction 148, result has 30.2 percent of original size [2022-02-24 00:50:28,712 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 294 treesize of output 319 [2022-02-24 00:50:28,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:50:28,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:50:28,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:50:28,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:50:28,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:50:28,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:50:28,722 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 322 treesize of output 268 [2022-02-24 00:50:28,751 INFO L356 Elim1Store]: treesize reduction 154, result has 15.4 percent of original size [2022-02-24 00:50:28,751 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 322 treesize of output 250 [2022-02-24 00:50:32,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:50:32,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:50:32,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:50:32,673 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 289 treesize of output 219 [2022-02-24 00:50:32,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:50:32,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:50:32,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:50:32,679 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 289 treesize of output 237 [2022-02-24 00:50:32,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:50:32,701 INFO L356 Elim1Store]: treesize reduction 77, result has 35.8 percent of original size [2022-02-24 00:50:32,702 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 289 treesize of output 289 [2022-02-24 00:50:33,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:50:33,008 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 163 treesize of output 109 [2022-02-24 00:50:33,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:50:33,013 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 117 treesize of output 69 [2022-02-24 00:50:33,037 INFO L356 Elim1Store]: treesize reduction 101, result has 22.9 percent of original size [2022-02-24 00:50:33,037 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 83 treesize of output 84 [2022-02-24 00:50:33,111 INFO L356 Elim1Store]: treesize reduction 64, result has 22.9 percent of original size [2022-02-24 00:50:33,112 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 35 [2022-02-24 00:50:33,251 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-02-24 00:50:33,251 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 11 [2022-02-24 00:50:33,290 INFO L134 CoverageAnalysis]: Checked inductivity of 2137 backedges. 992 proven. 445 refuted. 0 times theorem prover too weak. 700 trivial. 0 not checked. [2022-02-24 00:50:33,290 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-24 00:50:36,090 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-24 00:50:36,091 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-24 00:50:36,092 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 262 treesize of output 202 [2022-02-24 00:50:36,109 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-24 00:50:36,112 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-24 00:50:36,113 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 214 treesize of output 154 [2022-02-24 00:50:59,394 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-24 00:50:59,395 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-24 00:50:59,397 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 65 [2022-02-24 00:50:59,400 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-24 00:50:59,401 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-24 00:50:59,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:50:59,403 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2022-02-24 00:50:59,666 INFO L134 CoverageAnalysis]: Checked inductivity of 2137 backedges. 1134 proven. 141 refuted. 0 times theorem prover too weak. 862 trivial. 0 not checked. [2022-02-24 00:50:59,666 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1851199715] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-24 00:50:59,667 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-24 00:50:59,667 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 20, 14] total 59 [2022-02-24 00:50:59,667 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355013958] [2022-02-24 00:50:59,667 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-24 00:50:59,668 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 59 states [2022-02-24 00:50:59,668 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:50:59,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 59 interpolants. [2022-02-24 00:50:59,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=289, Invalid=3123, Unknown=10, NotChecked=0, Total=3422 [2022-02-24 00:50:59,669 INFO L87 Difference]: Start difference. First operand 29883 states and 42942 transitions. Second operand has 59 states, 59 states have (on average 13.64406779661017) internal successors, (805), 58 states have internal predecessors, (805), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:51:01,688 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 [] [2022-02-24 00:57:15,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:57:15,432 INFO L93 Difference]: Finished difference Result 819307 states and 1145521 transitions. [2022-02-24 00:57:15,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 1482 states. [2022-02-24 00:57:15,434 INFO L78 Accepts]: Start accepts. Automaton has has 59 states, 59 states have (on average 13.64406779661017) internal successors, (805), 58 states have internal predecessors, (805), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 486 [2022-02-24 00:57:15,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:57:17,124 INFO L225 Difference]: With dead ends: 819307 [2022-02-24 00:57:17,124 INFO L226 Difference]: Without dead ends: 789452 [2022-02-24 00:57:17,643 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3516 GetRequests, 1740 SyntacticMatches, 255 SemanticMatches, 1521 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1261041 ImplicationChecksByTransitivity, 295.2s TimeCoverageRelationStatistics Valid=125553, Invalid=2192443, Unknown=10, NotChecked=0, Total=2318006 [2022-02-24 00:57:17,643 INFO L933 BasicCegarLoop]: 1496 mSDtfsCounter, 14536 mSDsluCounter, 43813 mSDsCounter, 0 mSdLazyCounter, 41870 mSolverCounterSat, 2957 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 47.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14536 SdHoareTripleChecker+Valid, 45309 SdHoareTripleChecker+Invalid, 67673 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 2957 IncrementalHoareTripleChecker+Valid, 41870 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 22845 IncrementalHoareTripleChecker+Unchecked, 53.1s IncrementalHoareTripleChecker+Time [2022-02-24 00:57:17,643 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14536 Valid, 45309 Invalid, 67673 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [2957 Valid, 41870 Invalid, 1 Unknown, 22845 Unchecked, 53.1s Time] [2022-02-24 00:57:18,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 789452 states. [2022-02-24 00:57:33,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 789452 to 283838. [2022-02-24 00:57:33,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283838 states, 283833 states have (on average 1.4323246416026325) internal successors, (406541), 283833 states have internal predecessors, (406541), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:57:34,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283838 states to 283838 states and 406545 transitions. [2022-02-24 00:57:34,287 INFO L78 Accepts]: Start accepts. Automaton has 283838 states and 406545 transitions. Word has length 486 [2022-02-24 00:57:34,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:57:34,288 INFO L470 AbstractCegarLoop]: Abstraction has 283838 states and 406545 transitions. [2022-02-24 00:57:34,288 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 59 states, 59 states have (on average 13.64406779661017) internal successors, (805), 58 states have internal predecessors, (805), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:57:34,288 INFO L276 IsEmpty]: Start isEmpty. Operand 283838 states and 406545 transitions. [2022-02-24 00:57:34,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 491 [2022-02-24 00:57:34,940 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:57:34,940 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 9, 9, 9, 9, 9, 9, 6, 6, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-02-24 00:57:34,965 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-02-24 00:57:35,164 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable56 [2022-02-24 00:57:35,164 INFO L402 AbstractCegarLoop]: === Iteration 58 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:57:35,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:57:35,165 INFO L85 PathProgramCache]: Analyzing trace with hash 588751362, now seen corresponding path program 1 times [2022-02-24 00:57:35,165 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:57:35,165 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811235337] [2022-02-24 00:57:35,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:57:35,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:57:35,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:57:35,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:57:35,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:57:35,314 INFO L134 CoverageAnalysis]: Checked inductivity of 2163 backedges. 1236 proven. 0 refuted. 0 times theorem prover too weak. 927 trivial. 0 not checked. [2022-02-24 00:57:35,314 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:57:35,314 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811235337] [2022-02-24 00:57:35,314 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1811235337] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:57:35,314 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:57:35,314 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:57:35,314 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150395815] [2022-02-24 00:57:35,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:57:35,315 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:57:35,315 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:57:35,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:57:35,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:57:35,315 INFO L87 Difference]: Start difference. First operand 283838 states and 406545 transitions. Second operand has 5 states, 5 states have (on average 32.8) internal successors, (164), 4 states have internal predecessors, (164), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:57:37,323 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 [] [2022-02-24 00:57:47,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:57:47,993 INFO L93 Difference]: Finished difference Result 558686 states and 798255 transitions. [2022-02-24 00:57:47,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:57:47,994 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.8) internal successors, (164), 4 states have internal predecessors, (164), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 490 [2022-02-24 00:57:47,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:57:48,615 INFO L225 Difference]: With dead ends: 558686 [2022-02-24 00:57:48,615 INFO L226 Difference]: Without dead ends: 274876 [2022-02-24 00:57:48,772 INFO L932 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 [2022-02-24 00:57:48,772 INFO L933 BasicCegarLoop]: 227 mSDtfsCounter, 14 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 383 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 569 SdHoareTripleChecker+Invalid, 389 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 383 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-02-24 00:57:48,772 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14 Valid, 569 Invalid, 389 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 383 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-02-24 00:57:49,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274876 states.