/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.06.i.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-7390193 [2022-04-05 09:46:07,339 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-05 09:46:07,383 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-05 09:46:07,422 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-05 09:46:07,422 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-05 09:46:07,422 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-05 09:46:07,423 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-05 09:46:07,424 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-05 09:46:07,425 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-05 09:46:07,426 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-05 09:46:07,426 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-05 09:46:07,427 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-05 09:46:07,427 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-05 09:46:07,428 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-05 09:46:07,428 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-05 09:46:07,429 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-05 09:46:07,429 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-05 09:46:07,430 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-05 09:46:07,431 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-05 09:46:07,437 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-05 09:46:07,439 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-05 09:46:07,444 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-05 09:46:07,446 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-05 09:46:07,448 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-05 09:46:07,449 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-05 09:46:07,450 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-04-05 09:46:07,450 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-04-05 09:46:07,450 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-04-05 09:46:07,451 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-04-05 09:46:07,451 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-04-05 09:46:07,452 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2022-04-05 09:46:07,454 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-05 09:46:07,455 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-05 09:46:07,460 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-05 09:46:07,460 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/loopacceleration/qvasr/qvasr_64.epf [2022-04-05 09:46:07,481 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-05 09:46:07,481 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-05 09:46:07,482 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-04-05 09:46:07,482 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-04-05 09:46:07,483 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-04-05 09:46:07,483 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-04-05 09:46:07,483 INFO L138 SettingsManager]: * Use SBE=true [2022-04-05 09:46:07,483 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-05 09:46:07,483 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-05 09:46:07,484 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-05 09:46:07,484 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-05 09:46:07,484 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-05 09:46:07,484 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-05 09:46:07,484 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-05 09:46:07,484 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-05 09:46:07,484 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-05 09:46:07,484 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-05 09:46:07,484 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-05 09:46:07,484 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-05 09:46:07,484 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-05 09:46:07,485 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-05 09:46:07,485 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-04-05 09:46:07,485 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-04-05 09:46:07,485 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-04-05 09:46:07,485 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-04-05 09:46:07,485 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-05 09:46:07,485 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-04-05 09:46:07,485 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-04-05 09:46:07,486 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-04-05 09:46:07,486 INFO L138 SettingsManager]: * TransformationType=LOOP_ACCELERATION_QVASR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-04-05 09:46:07,664 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-05 09:46:07,680 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-05 09:46:07,682 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-05 09:46:07,682 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-05 09:46:07,683 INFO L275 PluginConnector]: CDTParser initialized [2022-04-05 09:46:07,683 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl/s3_srvr.blast.06.i.cil-1.c [2022-04-05 09:46:07,718 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/47bcc7182/4757eb0ca6184ce0a393af9f12bb78ee/FLAGcde1a573f [2022-04-05 09:46:08,130 INFO L306 CDTParser]: Found 1 translation units. [2022-04-05 09:46:08,130 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.06.i.cil-1.c [2022-04-05 09:46:08,151 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/47bcc7182/4757eb0ca6184ce0a393af9f12bb78ee/FLAGcde1a573f [2022-04-05 09:46:08,163 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/47bcc7182/4757eb0ca6184ce0a393af9f12bb78ee [2022-04-05 09:46:08,166 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-05 09:46:08,167 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-04-05 09:46:08,168 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-05 09:46:08,168 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-05 09:46:08,171 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-05 09:46:08,172 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.04 09:46:08" (1/1) ... [2022-04-05 09:46:08,173 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@438c2ab4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 09:46:08, skipping insertion in model container [2022-04-05 09:46:08,173 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.04 09:46:08" (1/1) ... [2022-04-05 09:46:08,177 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-05 09:46:08,229 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-05 09:46:08,491 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.06.i.cil-1.c[78520,78533] [2022-04-05 09:46:08,496 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-05 09:46:08,516 INFO L203 MainTranslator]: Completed pre-run [2022-04-05 09:46:08,625 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.06.i.cil-1.c[78520,78533] [2022-04-05 09:46:08,630 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-05 09:46:08,639 INFO L208 MainTranslator]: Completed translation [2022-04-05 09:46:08,640 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 09:46:08 WrapperNode [2022-04-05 09:46:08,640 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-05 09:46:08,641 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-05 09:46:08,642 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-05 09:46:08,642 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-05 09:46:08,649 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 09:46:08" (1/1) ... [2022-04-05 09:46:08,649 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 09:46:08" (1/1) ... [2022-04-05 09:46:08,687 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 09:46:08" (1/1) ... [2022-04-05 09:46:08,688 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 09:46:08" (1/1) ... [2022-04-05 09:46:08,723 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 09:46:08" (1/1) ... [2022-04-05 09:46:08,728 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 09:46:08" (1/1) ... [2022-04-05 09:46:08,730 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 09:46:08" (1/1) ... [2022-04-05 09:46:08,733 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-05 09:46:08,734 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-05 09:46:08,734 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-05 09:46:08,734 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-05 09:46:08,735 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 09:46:08" (1/1) ... [2022-04-05 09:46:08,753 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-05 09:46:08,762 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-05 09:46:08,770 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-04-05 09:46:08,791 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-04-05 09:46:08,793 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-04-05 09:46:08,793 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-05 09:46:08,794 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-04-05 09:46:08,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_server_method [2022-04-05 09:46:08,794 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_server_method [2022-04-05 09:46:08,794 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-04-05 09:46:08,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-04-05 09:46:08,795 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-04-05 09:46:08,795 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-04-05 09:46:08,795 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-04-05 09:46:08,795 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-04-05 09:46:08,796 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-04-05 09:46:08,796 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-04-05 09:46:08,796 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-05 09:46:08,796 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-04-05 09:46:08,796 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-04-05 09:46:08,796 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-04-05 09:46:08,796 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-04-05 09:46:08,796 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-04-05 09:46:08,796 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-04-05 09:46:08,796 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_server_method [2022-04-05 09:46:08,796 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-04-05 09:46:08,796 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-04-05 09:46:08,796 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_server_method [2022-04-05 09:46:08,796 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-04-05 09:46:08,796 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-04-05 09:46:08,796 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-04-05 09:46:08,797 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-04-05 09:46:08,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-05 09:46:08,797 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-04-05 09:46:08,797 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-05 09:46:08,797 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-04-05 09:46:08,797 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-04-05 09:46:08,797 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-04-05 09:46:08,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-05 09:46:08,797 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-05 09:46:08,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-04-05 09:46:08,797 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-04-05 09:46:08,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-04-05 09:46:08,797 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-04-05 09:46:08,797 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-05 09:46:08,965 INFO L234 CfgBuilder]: Building ICFG [2022-04-05 09:46:08,967 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-05 09:46:09,799 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-04-05 09:46:10,156 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2022-04-05 09:46:10,156 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2022-04-05 09:46:10,164 INFO L275 CfgBuilder]: Performing block encoding [2022-04-05 09:46:10,182 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-05 09:46:10,182 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-04-05 09:46:10,184 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.04 09:46:10 BoogieIcfgContainer [2022-04-05 09:46:10,184 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-05 09:46:10,184 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-04-05 09:46:10,184 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-04-05 09:46:10,185 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-04-05 09:46:10,187 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.04 09:46:10" (1/1) ... [2022-04-05 09:46:10,188 INFO L168 ansformationObserver]: Applying ICFG transformation LOOP_ACCELERATION_QVASR [2022-04-05 09:46:10,226 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 05.04 09:46:10 BasicIcfg [2022-04-05 09:46:10,226 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-04-05 09:46:10,227 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-05 09:46:10,227 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-05 09:46:10,229 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-05 09:46:10,229 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.04 09:46:08" (1/4) ... [2022-04-05 09:46:10,230 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3510218c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.04 09:46:10, skipping insertion in model container [2022-04-05 09:46:10,230 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 09:46:08" (2/4) ... [2022-04-05 09:46:10,230 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3510218c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.04 09:46:10, skipping insertion in model container [2022-04-05 09:46:10,230 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.04 09:46:10" (3/4) ... [2022-04-05 09:46:10,231 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3510218c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.04 09:46:10, skipping insertion in model container [2022-04-05 09:46:10,231 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 05.04 09:46:10" (4/4) ... [2022-04-05 09:46:10,232 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr.blast.06.i.cil-1.cqvasr [2022-04-05 09:46:10,235 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-04-05 09:46:10,235 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-04-05 09:46:10,271 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-05 09:46:10,278 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP [2022-04-05 09:46:10,279 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-04-05 09:46:10,300 INFO L276 IsEmpty]: Start isEmpty. Operand has 169 states, 161 states have (on average 1.7267080745341614) internal successors, (278), 162 states have internal predecessors, (278), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-04-05 09:46:10,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-04-05 09:46:10,309 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:46:10,310 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:46:10,310 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:46:10,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:46:10,313 INFO L85 PathProgramCache]: Analyzing trace with hash -1558367979, now seen corresponding path program 1 times [2022-04-05 09:46:10,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:46:10,320 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079411347] [2022-04-05 09:46:10,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:46:10,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:46:10,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:46:10,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:46:10,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:46:10,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 09:46:10,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:46:10,726 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2079411347] [2022-04-05 09:46:10,726 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2079411347] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:46:10,726 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:46:10,727 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:46:10,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978753412] [2022-04-05 09:46:10,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:46:10,732 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:46:10,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:46:10,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:46:10,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:46:10,754 INFO L87 Difference]: Start difference. First operand has 169 states, 161 states have (on average 1.7267080745341614) internal successors, (278), 162 states have internal predecessors, (278), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:46:14,219 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:46:15,621 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:46:16,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:46:16,197 INFO L93 Difference]: Finished difference Result 356 states and 604 transitions. [2022-04-05 09:46:16,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:46:16,200 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 51 [2022-04-05 09:46:16,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:46:16,206 INFO L225 Difference]: With dead ends: 356 [2022-04-05 09:46:16,206 INFO L226 Difference]: Without dead ends: 181 [2022-04-05 09:46:16,207 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:46:16,209 INFO L913 BasicCegarLoop]: 251 mSDtfsCounter, 34 mSDsluCounter, 422 mSDsCounter, 0 mSdLazyCounter, 436 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 673 SdHoareTripleChecker+Invalid, 448 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 436 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-04-05 09:46:16,210 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 673 Invalid, 448 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 436 Invalid, 1 Unknown, 0 Unchecked, 5.4s Time] [2022-04-05 09:46:16,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2022-04-05 09:46:16,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 164. [2022-04-05 09:46:16,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 159 states have (on average 1.5849056603773586) internal successors, (252), 159 states have internal predecessors, (252), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:46:16,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 256 transitions. [2022-04-05 09:46:16,238 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 256 transitions. Word has length 51 [2022-04-05 09:46:16,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:46:16,238 INFO L478 AbstractCegarLoop]: Abstraction has 164 states and 256 transitions. [2022-04-05 09:46:16,238 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:46:16,238 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 256 transitions. [2022-04-05 09:46:16,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-04-05 09:46:16,240 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:46:16,240 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:46:16,240 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-05 09:46:16,240 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:46:16,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:46:16,240 INFO L85 PathProgramCache]: Analyzing trace with hash -347522956, now seen corresponding path program 1 times [2022-04-05 09:46:16,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:46:16,241 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338549721] [2022-04-05 09:46:16,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:46:16,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:46:16,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:46:16,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:46:16,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:46:16,346 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 09:46:16,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:46:16,347 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338549721] [2022-04-05 09:46:16,347 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [338549721] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:46:16,347 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:46:16,347 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:46:16,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649847509] [2022-04-05 09:46:16,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:46:16,348 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:46:16,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:46:16,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:46:16,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:46:16,349 INFO L87 Difference]: Start difference. First operand 164 states and 256 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:46:17,427 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:46:19,453 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:46:21,058 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:46:21,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:46:21,687 INFO L93 Difference]: Finished difference Result 429 states and 676 transitions. [2022-04-05 09:46:21,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:46:21,687 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 64 [2022-04-05 09:46:21,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:46:21,689 INFO L225 Difference]: With dead ends: 429 [2022-04-05 09:46:21,689 INFO L226 Difference]: Without dead ends: 291 [2022-04-05 09:46:21,690 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:46:21,694 INFO L913 BasicCegarLoop]: 301 mSDtfsCounter, 163 mSDsluCounter, 431 mSDsCounter, 0 mSdLazyCounter, 663 mSolverCounterSat, 46 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 732 SdHoareTripleChecker+Invalid, 710 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 663 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-04-05 09:46:21,695 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [163 Valid, 732 Invalid, 710 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 663 Invalid, 1 Unknown, 0 Unchecked, 5.3s Time] [2022-04-05 09:46:21,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2022-04-05 09:46:21,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 180. [2022-04-05 09:46:21,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 175 states have (on average 1.582857142857143) internal successors, (277), 175 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) [2022-04-05 09:46:21,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 281 transitions. [2022-04-05 09:46:21,709 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 281 transitions. Word has length 64 [2022-04-05 09:46:21,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:46:21,709 INFO L478 AbstractCegarLoop]: Abstraction has 180 states and 281 transitions. [2022-04-05 09:46:21,709 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:46:21,709 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 281 transitions. [2022-04-05 09:46:21,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-04-05 09:46:21,711 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:46:21,711 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:46:21,711 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-05 09:46:21,711 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:46:21,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:46:21,711 INFO L85 PathProgramCache]: Analyzing trace with hash -443806277, now seen corresponding path program 1 times [2022-04-05 09:46:21,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:46:21,711 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236595796] [2022-04-05 09:46:21,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:46:21,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:46:21,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:46:21,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:46:21,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:46:21,842 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 09:46:21,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:46:21,842 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236595796] [2022-04-05 09:46:21,842 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [236595796] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:46:21,842 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:46:21,843 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:46:21,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323431228] [2022-04-05 09:46:21,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:46:21,843 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:46:21,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:46:21,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:46:21,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:46:21,844 INFO L87 Difference]: Start difference. First operand 180 states and 281 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:46:23,849 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:46:25,810 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:46:26,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:46:26,568 INFO L93 Difference]: Finished difference Result 350 states and 545 transitions. [2022-04-05 09:46:26,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:46:26,569 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 65 [2022-04-05 09:46:26,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:46:26,570 INFO L225 Difference]: With dead ends: 350 [2022-04-05 09:46:26,570 INFO L226 Difference]: Without dead ends: 196 [2022-04-05 09:46:26,571 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:46:26,571 INFO L913 BasicCegarLoop]: 210 mSDtfsCounter, 28 mSDsluCounter, 341 mSDsCounter, 0 mSdLazyCounter, 384 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 551 SdHoareTripleChecker+Invalid, 393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 384 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-04-05 09:46:26,572 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 551 Invalid, 393 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 384 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2022-04-05 09:46:26,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2022-04-05 09:46:26,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 180. [2022-04-05 09:46:26,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 175 states have (on average 1.5771428571428572) internal successors, (276), 175 states have internal predecessors, (276), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:46:26,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 280 transitions. [2022-04-05 09:46:26,580 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 280 transitions. Word has length 65 [2022-04-05 09:46:26,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:46:26,580 INFO L478 AbstractCegarLoop]: Abstraction has 180 states and 280 transitions. [2022-04-05 09:46:26,580 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:46:26,580 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 280 transitions. [2022-04-05 09:46:26,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-04-05 09:46:26,581 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:46:26,581 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:46:26,581 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-04-05 09:46:26,582 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:46:26,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:46:26,582 INFO L85 PathProgramCache]: Analyzing trace with hash 518015387, now seen corresponding path program 1 times [2022-04-05 09:46:26,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:46:26,582 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997460557] [2022-04-05 09:46:26,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:46:26,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:46:26,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:46:26,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:46:26,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:46:26,680 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 09:46:26,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:46:26,680 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997460557] [2022-04-05 09:46:26,680 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [997460557] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:46:26,680 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:46:26,680 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:46:26,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803860981] [2022-04-05 09:46:26,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:46:26,681 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:46:26,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:46:26,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:46:26,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:46:26,682 INFO L87 Difference]: Start difference. First operand 180 states and 280 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:46:29,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:46:29,192 INFO L93 Difference]: Finished difference Result 350 states and 544 transitions. [2022-04-05 09:46:29,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:46:29,192 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 65 [2022-04-05 09:46:29,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:46:29,193 INFO L225 Difference]: With dead ends: 350 [2022-04-05 09:46:29,193 INFO L226 Difference]: Without dead ends: 196 [2022-04-05 09:46:29,194 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:46:29,195 INFO L913 BasicCegarLoop]: 210 mSDtfsCounter, 26 mSDsluCounter, 341 mSDsCounter, 0 mSdLazyCounter, 384 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 551 SdHoareTripleChecker+Invalid, 393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 384 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-04-05 09:46:29,195 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [26 Valid, 551 Invalid, 393 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 384 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-04-05 09:46:29,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2022-04-05 09:46:29,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 180. [2022-04-05 09:46:29,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 175 states have (on average 1.5714285714285714) internal successors, (275), 175 states have internal predecessors, (275), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:46:29,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 279 transitions. [2022-04-05 09:46:29,200 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 279 transitions. Word has length 65 [2022-04-05 09:46:29,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:46:29,200 INFO L478 AbstractCegarLoop]: Abstraction has 180 states and 279 transitions. [2022-04-05 09:46:29,201 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:46:29,201 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 279 transitions. [2022-04-05 09:46:29,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-04-05 09:46:29,201 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:46:29,202 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:46:29,202 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-04-05 09:46:29,202 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:46:29,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:46:29,202 INFO L85 PathProgramCache]: Analyzing trace with hash 2105726299, now seen corresponding path program 1 times [2022-04-05 09:46:29,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:46:29,202 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224606202] [2022-04-05 09:46:29,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:46:29,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:46:29,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:46:29,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:46:29,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:46:29,311 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 09:46:29,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:46:29,311 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224606202] [2022-04-05 09:46:29,312 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1224606202] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:46:29,312 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:46:29,312 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:46:29,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189961823] [2022-04-05 09:46:29,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:46:29,313 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:46:29,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:46:29,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:46:29,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:46:29,313 INFO L87 Difference]: Start difference. First operand 180 states and 279 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:46:30,505 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:46:32,529 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:46:34,554 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:46:35,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:46:35,457 INFO L93 Difference]: Finished difference Result 461 states and 725 transitions. [2022-04-05 09:46:35,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:46:35,457 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 65 [2022-04-05 09:46:35,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:46:35,458 INFO L225 Difference]: With dead ends: 461 [2022-04-05 09:46:35,458 INFO L226 Difference]: Without dead ends: 307 [2022-04-05 09:46:35,459 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:46:35,459 INFO L913 BasicCegarLoop]: 139 mSDtfsCounter, 162 mSDsluCounter, 269 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 64 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 563 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-04-05 09:46:35,460 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [162 Valid, 408 Invalid, 563 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 497 Invalid, 2 Unknown, 0 Unchecked, 6.1s Time] [2022-04-05 09:46:35,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2022-04-05 09:46:35,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 197. [2022-04-05 09:46:35,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 192 states have (on average 1.5729166666666667) internal successors, (302), 192 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) [2022-04-05 09:46:35,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 306 transitions. [2022-04-05 09:46:35,465 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 306 transitions. Word has length 65 [2022-04-05 09:46:35,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:46:35,465 INFO L478 AbstractCegarLoop]: Abstraction has 197 states and 306 transitions. [2022-04-05 09:46:35,465 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:46:35,465 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 306 transitions. [2022-04-05 09:46:35,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-04-05 09:46:35,466 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:46:35,466 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:46:35,466 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-04-05 09:46:35,466 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:46:35,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:46:35,467 INFO L85 PathProgramCache]: Analyzing trace with hash 173308475, now seen corresponding path program 1 times [2022-04-05 09:46:35,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:46:35,467 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641478234] [2022-04-05 09:46:35,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:46:35,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:46:35,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:46:35,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:46:35,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:46:35,546 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 09:46:35,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:46:35,546 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [641478234] [2022-04-05 09:46:35,546 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [641478234] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:46:35,546 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:46:35,546 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:46:35,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671990671] [2022-04-05 09:46:35,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:46:35,547 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:46:35,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:46:35,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:46:35,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:46:35,547 INFO L87 Difference]: Start difference. First operand 197 states and 306 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:46:38,481 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:46:41,260 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:46:41,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:46:41,612 INFO L93 Difference]: Finished difference Result 381 states and 595 transitions. [2022-04-05 09:46:41,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:46:41,613 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 65 [2022-04-05 09:46:41,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:46:41,614 INFO L225 Difference]: With dead ends: 381 [2022-04-05 09:46:41,614 INFO L226 Difference]: Without dead ends: 210 [2022-04-05 09:46:41,614 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:46:41,615 INFO L913 BasicCegarLoop]: 213 mSDtfsCounter, 18 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 376 mSolverCounterSat, 8 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 557 SdHoareTripleChecker+Invalid, 386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 376 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-04-05 09:46:41,615 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 557 Invalid, 386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 376 Invalid, 2 Unknown, 0 Unchecked, 6.0s Time] [2022-04-05 09:46:41,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2022-04-05 09:46:41,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 197. [2022-04-05 09:46:41,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 192 states have (on average 1.5677083333333333) internal successors, (301), 192 states have internal predecessors, (301), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:46:41,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 305 transitions. [2022-04-05 09:46:41,619 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 305 transitions. Word has length 65 [2022-04-05 09:46:41,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:46:41,620 INFO L478 AbstractCegarLoop]: Abstraction has 197 states and 305 transitions. [2022-04-05 09:46:41,620 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:46:41,620 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 305 transitions. [2022-04-05 09:46:41,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-04-05 09:46:41,621 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:46:41,621 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:46:41,621 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-04-05 09:46:41,621 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:46:41,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:46:41,622 INFO L85 PathProgramCache]: Analyzing trace with hash -1737888044, now seen corresponding path program 1 times [2022-04-05 09:46:41,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:46:41,622 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114872633] [2022-04-05 09:46:41,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:46:41,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:46:41,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:46:41,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:46:41,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:46:41,746 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 09:46:41,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:46:41,747 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2114872633] [2022-04-05 09:46:41,747 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2114872633] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:46:41,747 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:46:41,747 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:46:41,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720049589] [2022-04-05 09:46:41,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:46:41,748 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:46:41,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:46:41,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:46:41,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:46:41,749 INFO L87 Difference]: Start difference. First operand 197 states and 305 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:46:43,493 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 [] [2022-04-05 09:46:45,520 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:46:47,546 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:46:49,569 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:46:49,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:46:49,892 INFO L93 Difference]: Finished difference Result 381 states and 594 transitions. [2022-04-05 09:46:49,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:46:49,892 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 66 [2022-04-05 09:46:49,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:46:49,893 INFO L225 Difference]: With dead ends: 381 [2022-04-05 09:46:49,893 INFO L226 Difference]: Without dead ends: 210 [2022-04-05 09:46:49,893 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:46:49,894 INFO L913 BasicCegarLoop]: 213 mSDtfsCounter, 22 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 375 mSolverCounterSat, 8 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 557 SdHoareTripleChecker+Invalid, 386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 375 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2022-04-05 09:46:49,894 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 557 Invalid, 386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 375 Invalid, 3 Unknown, 0 Unchecked, 8.1s Time] [2022-04-05 09:46:49,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2022-04-05 09:46:49,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 197. [2022-04-05 09:46:49,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 192 states have (on average 1.5625) internal successors, (300), 192 states have internal predecessors, (300), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:46:49,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 304 transitions. [2022-04-05 09:46:49,898 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 304 transitions. Word has length 66 [2022-04-05 09:46:49,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:46:49,898 INFO L478 AbstractCegarLoop]: Abstraction has 197 states and 304 transitions. [2022-04-05 09:46:49,898 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:46:49,898 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 304 transitions. [2022-04-05 09:46:49,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-04-05 09:46:49,899 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:46:49,899 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:46:49,899 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-04-05 09:46:49,901 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:46:49,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:46:49,901 INFO L85 PathProgramCache]: Analyzing trace with hash 926906423, now seen corresponding path program 1 times [2022-04-05 09:46:49,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:46:49,901 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [351812795] [2022-04-05 09:46:49,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:46:49,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:46:49,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:46:50,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:46:50,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:46:50,006 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 09:46:50,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:46:50,006 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [351812795] [2022-04-05 09:46:50,006 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [351812795] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:46:50,006 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:46:50,006 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:46:50,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075495039] [2022-04-05 09:46:50,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:46:50,006 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:46:50,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:46:50,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:46:50,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:46:50,007 INFO L87 Difference]: Start difference. First operand 197 states and 304 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:46:52,014 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:46:52,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:46:52,484 INFO L93 Difference]: Finished difference Result 478 states and 749 transitions. [2022-04-05 09:46:52,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:46:52,485 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 67 [2022-04-05 09:46:52,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:46:52,486 INFO L225 Difference]: With dead ends: 478 [2022-04-05 09:46:52,486 INFO L226 Difference]: Without dead ends: 307 [2022-04-05 09:46:52,487 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:46:52,487 INFO L913 BasicCegarLoop]: 139 mSDtfsCounter, 164 mSDsluCounter, 269 mSDsCounter, 0 mSdLazyCounter, 495 mSolverCounterSat, 64 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 560 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 495 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-05 09:46:52,487 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [164 Valid, 408 Invalid, 560 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 495 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-04-05 09:46:52,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2022-04-05 09:46:52,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 197. [2022-04-05 09:46:52,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 192 states have (on average 1.546875) internal successors, (297), 192 states have internal predecessors, (297), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:46:52,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 301 transitions. [2022-04-05 09:46:52,509 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 301 transitions. Word has length 67 [2022-04-05 09:46:52,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:46:52,510 INFO L478 AbstractCegarLoop]: Abstraction has 197 states and 301 transitions. [2022-04-05 09:46:52,510 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:46:52,510 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 301 transitions. [2022-04-05 09:46:52,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-04-05 09:46:52,510 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:46:52,510 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:46:52,510 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-04-05 09:46:52,510 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:46:52,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:46:52,511 INFO L85 PathProgramCache]: Analyzing trace with hash -1481099262, now seen corresponding path program 1 times [2022-04-05 09:46:52,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:46:52,512 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557925643] [2022-04-05 09:46:52,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:46:52,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:46:52,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:46:52,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:46:52,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:46:52,614 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 09:46:52,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:46:52,614 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [557925643] [2022-04-05 09:46:52,615 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [557925643] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:46:52,615 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:46:52,615 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:46:52,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614932295] [2022-04-05 09:46:52,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:46:52,615 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:46:52,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:46:52,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:46:52,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:46:52,616 INFO L87 Difference]: Start difference. First operand 197 states and 301 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:46:55,210 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:46:57,233 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:46:58,446 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:46:58,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:46:58,816 INFO L93 Difference]: Finished difference Result 409 states and 632 transitions. [2022-04-05 09:46:58,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:46:58,817 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 68 [2022-04-05 09:46:58,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:46:58,818 INFO L225 Difference]: With dead ends: 409 [2022-04-05 09:46:58,818 INFO L226 Difference]: Without dead ends: 238 [2022-04-05 09:46:58,818 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:46:58,819 INFO L913 BasicCegarLoop]: 232 mSDtfsCounter, 31 mSDsluCounter, 369 mSDsCounter, 0 mSdLazyCounter, 430 mSolverCounterSat, 10 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 601 SdHoareTripleChecker+Invalid, 442 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 430 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-04-05 09:46:58,819 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [31 Valid, 601 Invalid, 442 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 430 Invalid, 2 Unknown, 0 Unchecked, 6.2s Time] [2022-04-05 09:46:58,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2022-04-05 09:46:58,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 219. [2022-04-05 09:46:58,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 214 states have (on average 1.5514018691588785) internal successors, (332), 214 states have internal predecessors, (332), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:46:58,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 336 transitions. [2022-04-05 09:46:58,823 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 336 transitions. Word has length 68 [2022-04-05 09:46:58,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:46:58,823 INFO L478 AbstractCegarLoop]: Abstraction has 219 states and 336 transitions. [2022-04-05 09:46:58,823 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:46:58,823 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 336 transitions. [2022-04-05 09:46:58,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-04-05 09:46:58,824 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:46:58,824 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:46:58,824 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-04-05 09:46:58,824 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:46:58,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:46:58,824 INFO L85 PathProgramCache]: Analyzing trace with hash 544932049, now seen corresponding path program 1 times [2022-04-05 09:46:58,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:46:58,825 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660677721] [2022-04-05 09:46:58,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:46:58,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:46:58,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:46:58,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:46:58,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:46:58,900 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 09:46:58,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:46:58,900 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1660677721] [2022-04-05 09:46:58,900 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1660677721] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:46:58,900 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:46:58,900 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:46:58,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755036168] [2022-04-05 09:46:58,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:46:58,901 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:46:58,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:46:58,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:46:58,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:46:58,901 INFO L87 Difference]: Start difference. First operand 219 states and 336 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:47:00,661 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:47:02,686 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:47:04,263 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:47:04,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:47:04,697 INFO L93 Difference]: Finished difference Result 522 states and 814 transitions. [2022-04-05 09:47:04,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:47:04,697 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 68 [2022-04-05 09:47:04,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:47:04,699 INFO L225 Difference]: With dead ends: 522 [2022-04-05 09:47:04,699 INFO L226 Difference]: Without dead ends: 329 [2022-04-05 09:47:04,699 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:47:04,699 INFO L913 BasicCegarLoop]: 139 mSDtfsCounter, 162 mSDsluCounter, 269 mSDsCounter, 0 mSdLazyCounter, 498 mSolverCounterSat, 64 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 563 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 498 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-04-05 09:47:04,700 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [162 Valid, 408 Invalid, 563 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 498 Invalid, 1 Unknown, 0 Unchecked, 5.8s Time] [2022-04-05 09:47:04,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 329 states. [2022-04-05 09:47:04,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 329 to 219. [2022-04-05 09:47:04,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 214 states have (on average 1.5327102803738317) internal successors, (328), 214 states have internal predecessors, (328), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:47:04,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 332 transitions. [2022-04-05 09:47:04,704 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 332 transitions. Word has length 68 [2022-04-05 09:47:04,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:47:04,704 INFO L478 AbstractCegarLoop]: Abstraction has 219 states and 332 transitions. [2022-04-05 09:47:04,704 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:47:04,704 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 332 transitions. [2022-04-05 09:47:04,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-04-05 09:47:04,705 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:47:04,705 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:47:04,705 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-04-05 09:47:04,705 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:47:04,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:47:04,705 INFO L85 PathProgramCache]: Analyzing trace with hash -1819938328, now seen corresponding path program 1 times [2022-04-05 09:47:04,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:47:04,705 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330999467] [2022-04-05 09:47:04,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:47:04,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:47:04,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:47:04,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:47:04,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:47:04,784 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-04-05 09:47:04,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:47:04,785 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330999467] [2022-04-05 09:47:04,785 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [330999467] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:47:04,785 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:47:04,785 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:47:04,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198955045] [2022-04-05 09:47:04,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:47:04,785 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:47:04,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:47:04,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:47:04,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:47:04,786 INFO L87 Difference]: Start difference. First operand 219 states and 332 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:47:07,109 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:47:09,584 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:47:09,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:47:09,943 INFO L93 Difference]: Finished difference Result 425 states and 650 transitions. [2022-04-05 09:47:09,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:47:09,943 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 82 [2022-04-05 09:47:09,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:47:09,944 INFO L225 Difference]: With dead ends: 425 [2022-04-05 09:47:09,944 INFO L226 Difference]: Without dead ends: 232 [2022-04-05 09:47:09,945 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:47:09,945 INFO L913 BasicCegarLoop]: 250 mSDtfsCounter, 20 mSDsluCounter, 386 mSDsCounter, 0 mSdLazyCounter, 418 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 636 SdHoareTripleChecker+Invalid, 429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 418 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-04-05 09:47:09,945 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 636 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 418 Invalid, 1 Unknown, 0 Unchecked, 5.1s Time] [2022-04-05 09:47:09,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2022-04-05 09:47:09,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 219. [2022-04-05 09:47:09,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 214 states have (on average 1.52803738317757) internal successors, (327), 214 states have internal predecessors, (327), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:47:09,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 331 transitions. [2022-04-05 09:47:09,949 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 331 transitions. Word has length 82 [2022-04-05 09:47:09,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:47:09,950 INFO L478 AbstractCegarLoop]: Abstraction has 219 states and 331 transitions. [2022-04-05 09:47:09,950 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:47:09,950 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 331 transitions. [2022-04-05 09:47:09,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-04-05 09:47:09,950 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:47:09,950 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:47:09,950 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-04-05 09:47:09,951 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:47:09,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:47:09,951 INFO L85 PathProgramCache]: Analyzing trace with hash -1202823576, now seen corresponding path program 1 times [2022-04-05 09:47:09,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:47:09,951 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801147221] [2022-04-05 09:47:09,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:47:09,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:47:09,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:47:10,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:47:10,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:47:10,050 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 09:47:10,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:47:10,050 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1801147221] [2022-04-05 09:47:10,050 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1801147221] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:47:10,050 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:47:10,050 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:47:10,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839290088] [2022-04-05 09:47:10,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:47:10,051 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:47:10,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:47:10,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:47:10,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:47:10,051 INFO L87 Difference]: Start difference. First operand 219 states and 331 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) [2022-04-05 09:47:12,842 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:47:14,872 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:47:15,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:47:15,404 INFO L93 Difference]: Finished difference Result 430 states and 656 transitions. [2022-04-05 09:47:15,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:47:15,404 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 [2022-04-05 09:47:15,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:47:15,405 INFO L225 Difference]: With dead ends: 430 [2022-04-05 09:47:15,405 INFO L226 Difference]: Without dead ends: 237 [2022-04-05 09:47:15,406 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:47:15,406 INFO L913 BasicCegarLoop]: 220 mSDtfsCounter, 33 mSDsluCounter, 355 mSDsCounter, 0 mSdLazyCounter, 411 mSolverCounterSat, 10 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 575 SdHoareTripleChecker+Invalid, 423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 411 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-04-05 09:47:15,406 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 575 Invalid, 423 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 411 Invalid, 2 Unknown, 0 Unchecked, 5.3s Time] [2022-04-05 09:47:15,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2022-04-05 09:47:15,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 219. [2022-04-05 09:47:15,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 214 states have (on average 1.5233644859813085) internal successors, (326), 214 states have internal predecessors, (326), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:47:15,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 330 transitions. [2022-04-05 09:47:15,410 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 330 transitions. Word has length 82 [2022-04-05 09:47:15,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:47:15,410 INFO L478 AbstractCegarLoop]: Abstraction has 219 states and 330 transitions. [2022-04-05 09:47:15,411 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:47:15,411 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 330 transitions. [2022-04-05 09:47:15,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-04-05 09:47:15,411 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:47:15,411 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:47:15,411 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-04-05 09:47:15,412 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:47:15,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:47:15,412 INFO L85 PathProgramCache]: Analyzing trace with hash -660948, now seen corresponding path program 1 times [2022-04-05 09:47:15,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:47:15,412 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089478517] [2022-04-05 09:47:15,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:47:15,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:47:15,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:47:15,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:47:15,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:47:15,506 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-04-05 09:47:15,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:47:15,506 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089478517] [2022-04-05 09:47:15,506 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2089478517] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:47:15,506 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:47:15,506 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-05 09:47:15,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818694094] [2022-04-05 09:47:15,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:47:15,506 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-05 09:47:15,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:47:15,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-05 09:47:15,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:47:15,507 INFO L87 Difference]: Start difference. First operand 219 states and 330 transitions. Second operand has 6 states, 6 states have (on average 13.0) internal successors, (78), 5 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:47:18,028 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:47:20,053 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:47:22,082 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:47:24,102 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:47:24,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:47:24,443 INFO L93 Difference]: Finished difference Result 421 states and 642 transitions. [2022-04-05 09:47:24,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-05 09:47:24,443 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 5 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 83 [2022-04-05 09:47:24,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:47:24,444 INFO L225 Difference]: With dead ends: 421 [2022-04-05 09:47:24,444 INFO L226 Difference]: Without dead ends: 228 [2022-04-05 09:47:24,444 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-04-05 09:47:24,445 INFO L913 BasicCegarLoop]: 225 mSDtfsCounter, 3 mSDsluCounter, 496 mSDsCounter, 0 mSdLazyCounter, 454 mSolverCounterSat, 4 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 721 SdHoareTripleChecker+Invalid, 462 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 454 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.9s IncrementalHoareTripleChecker+Time [2022-04-05 09:47:24,445 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 721 Invalid, 462 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 454 Invalid, 4 Unknown, 0 Unchecked, 8.9s Time] [2022-04-05 09:47:24,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2022-04-05 09:47:24,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 228. [2022-04-05 09:47:24,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 228 states, 223 states have (on average 1.5112107623318385) internal successors, (337), 223 states have internal predecessors, (337), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:47:24,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 341 transitions. [2022-04-05 09:47:24,449 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 341 transitions. Word has length 83 [2022-04-05 09:47:24,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:47:24,449 INFO L478 AbstractCegarLoop]: Abstraction has 228 states and 341 transitions. [2022-04-05 09:47:24,449 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 5 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:47:24,449 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 341 transitions. [2022-04-05 09:47:24,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-04-05 09:47:24,450 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:47:24,450 INFO L499 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, 1] [2022-04-05 09:47:24,450 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-04-05 09:47:24,450 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:47:24,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:47:24,450 INFO L85 PathProgramCache]: Analyzing trace with hash -248960436, now seen corresponding path program 1 times [2022-04-05 09:47:24,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:47:24,450 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984466056] [2022-04-05 09:47:24,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:47:24,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:47:24,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:47:24,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:47:24,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:47:24,548 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 09:47:24,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:47:24,548 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984466056] [2022-04-05 09:47:24,548 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1984466056] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:47:24,548 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:47:24,548 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:47:24,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924862343] [2022-04-05 09:47:24,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:47:24,549 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:47:24,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:47:24,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:47:24,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:47:24,549 INFO L87 Difference]: Start difference. First operand 228 states and 341 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:47:25,824 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:47:27,844 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:47:29,869 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:47:31,896 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:47:32,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:47:32,340 INFO L93 Difference]: Finished difference Result 549 states and 836 transitions. [2022-04-05 09:47:32,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:47:32,340 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 83 [2022-04-05 09:47:32,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:47:32,342 INFO L225 Difference]: With dead ends: 549 [2022-04-05 09:47:32,342 INFO L226 Difference]: Without dead ends: 347 [2022-04-05 09:47:32,342 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:47:32,343 INFO L913 BasicCegarLoop]: 139 mSDtfsCounter, 165 mSDsluCounter, 269 mSDsCounter, 0 mSdLazyCounter, 496 mSolverCounterSat, 64 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 563 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 496 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2022-04-05 09:47:32,343 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [165 Valid, 408 Invalid, 563 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 496 Invalid, 3 Unknown, 0 Unchecked, 7.8s Time] [2022-04-05 09:47:32,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2022-04-05 09:47:32,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 228. [2022-04-05 09:47:32,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 228 states, 223 states have (on average 1.4977578475336324) internal successors, (334), 223 states have internal predecessors, (334), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:47:32,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 338 transitions. [2022-04-05 09:47:32,347 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 338 transitions. Word has length 83 [2022-04-05 09:47:32,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:47:32,347 INFO L478 AbstractCegarLoop]: Abstraction has 228 states and 338 transitions. [2022-04-05 09:47:32,348 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:47:32,348 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 338 transitions. [2022-04-05 09:47:32,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-04-05 09:47:32,348 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:47:32,348 INFO L499 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, 1] [2022-04-05 09:47:32,348 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-04-05 09:47:32,348 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:47:32,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:47:32,349 INFO L85 PathProgramCache]: Analyzing trace with hash -1365043283, now seen corresponding path program 1 times [2022-04-05 09:47:32,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:47:32,349 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572238536] [2022-04-05 09:47:32,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:47:32,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:47:32,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:47:32,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:47:32,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:47:32,427 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 09:47:32,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:47:32,427 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572238536] [2022-04-05 09:47:32,427 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [572238536] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:47:32,427 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:47:32,427 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:47:32,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541603690] [2022-04-05 09:47:32,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:47:32,428 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:47:32,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:47:32,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:47:32,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:47:32,428 INFO L87 Difference]: Start difference. First operand 228 states and 338 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:47:33,455 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:47:36,500 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:47:36,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:47:36,949 INFO L93 Difference]: Finished difference Result 539 states and 817 transitions. [2022-04-05 09:47:36,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:47:36,949 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 [2022-04-05 09:47:36,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:47:36,950 INFO L225 Difference]: With dead ends: 539 [2022-04-05 09:47:36,950 INFO L226 Difference]: Without dead ends: 337 [2022-04-05 09:47:36,950 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:47:36,951 INFO L913 BasicCegarLoop]: 140 mSDtfsCounter, 162 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 496 mSolverCounterSat, 63 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 410 SdHoareTripleChecker+Invalid, 560 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 496 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-04-05 09:47:36,951 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [162 Valid, 410 Invalid, 560 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 496 Invalid, 1 Unknown, 0 Unchecked, 4.5s Time] [2022-04-05 09:47:36,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2022-04-05 09:47:36,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 228. [2022-04-05 09:47:36,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 228 states, 223 states have (on average 1.484304932735426) internal successors, (331), 223 states have internal predecessors, (331), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:47:36,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 335 transitions. [2022-04-05 09:47:36,955 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 335 transitions. Word has length 84 [2022-04-05 09:47:36,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:47:36,955 INFO L478 AbstractCegarLoop]: Abstraction has 228 states and 335 transitions. [2022-04-05 09:47:36,955 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:47:36,955 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 335 transitions. [2022-04-05 09:47:36,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-04-05 09:47:36,956 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:47:36,956 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:47:36,956 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-04-05 09:47:36,956 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:47:36,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:47:36,956 INFO L85 PathProgramCache]: Analyzing trace with hash 2060411777, now seen corresponding path program 1 times [2022-04-05 09:47:36,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:47:36,957 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [133237071] [2022-04-05 09:47:36,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:47:36,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:47:36,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:47:37,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:47:37,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:47:37,039 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-04-05 09:47:37,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:47:37,039 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [133237071] [2022-04-05 09:47:37,040 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [133237071] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:47:37,040 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:47:37,040 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:47:37,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002538516] [2022-04-05 09:47:37,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:47:37,040 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:47:37,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:47:37,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:47:37,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:47:37,040 INFO L87 Difference]: Start difference. First operand 228 states and 335 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:47:38,466 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:47:40,402 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:47:42,434 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:47:44,386 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:47:44,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:47:44,838 INFO L93 Difference]: Finished difference Result 542 states and 811 transitions. [2022-04-05 09:47:44,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:47:44,839 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 [2022-04-05 09:47:44,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:47:44,840 INFO L225 Difference]: With dead ends: 542 [2022-04-05 09:47:44,840 INFO L226 Difference]: Without dead ends: 340 [2022-04-05 09:47:44,840 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:47:44,840 INFO L913 BasicCegarLoop]: 221 mSDtfsCounter, 104 mSDsluCounter, 358 mSDsCounter, 0 mSdLazyCounter, 568 mSolverCounterSat, 14 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 579 SdHoareTripleChecker+Invalid, 583 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 568 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2022-04-05 09:47:44,841 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [104 Valid, 579 Invalid, 583 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 568 Invalid, 1 Unknown, 0 Unchecked, 7.8s Time] [2022-04-05 09:47:44,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2022-04-05 09:47:44,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 269. [2022-04-05 09:47:44,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 269 states, 264 states have (on average 1.5113636363636365) internal successors, (399), 264 states have internal predecessors, (399), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:47:44,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 403 transitions. [2022-04-05 09:47:44,846 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 403 transitions. Word has length 90 [2022-04-05 09:47:44,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:47:44,847 INFO L478 AbstractCegarLoop]: Abstraction has 269 states and 403 transitions. [2022-04-05 09:47:44,847 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:47:44,847 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 403 transitions. [2022-04-05 09:47:44,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-04-05 09:47:44,848 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:47:44,848 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:47:44,848 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-04-05 09:47:44,848 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:47:44,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:47:44,849 INFO L85 PathProgramCache]: Analyzing trace with hash -2110482272, now seen corresponding path program 1 times [2022-04-05 09:47:44,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:47:44,849 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530417276] [2022-04-05 09:47:44,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:47:44,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:47:44,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:47:44,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:47:44,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:47:44,957 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-04-05 09:47:44,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:47:44,957 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [530417276] [2022-04-05 09:47:44,957 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [530417276] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:47:44,957 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:47:44,957 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:47:44,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283100238] [2022-04-05 09:47:44,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:47:44,958 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:47:44,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:47:44,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:47:44,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:47:44,958 INFO L87 Difference]: Start difference. First operand 269 states and 403 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:47:47,554 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:47:49,577 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:47:51,604 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:47:52,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:47:52,024 INFO L93 Difference]: Finished difference Result 639 states and 971 transitions. [2022-04-05 09:47:52,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:47:52,024 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 [2022-04-05 09:47:52,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:47:52,025 INFO L225 Difference]: With dead ends: 639 [2022-04-05 09:47:52,026 INFO L226 Difference]: Without dead ends: 396 [2022-04-05 09:47:52,026 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:47:52,026 INFO L913 BasicCegarLoop]: 141 mSDtfsCounter, 135 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 498 mSolverCounterSat, 59 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 412 SdHoareTripleChecker+Invalid, 560 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 498 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2022-04-05 09:47:52,027 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [135 Valid, 412 Invalid, 560 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 498 Invalid, 3 Unknown, 0 Unchecked, 7.0s Time] [2022-04-05 09:47:52,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 396 states. [2022-04-05 09:47:52,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 396 to 268. [2022-04-05 09:47:52,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 268 states, 263 states have (on average 1.5133079847908746) internal successors, (398), 263 states have internal predecessors, (398), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:47:52,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 402 transitions. [2022-04-05 09:47:52,034 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 402 transitions. Word has length 90 [2022-04-05 09:47:52,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:47:52,034 INFO L478 AbstractCegarLoop]: Abstraction has 268 states and 402 transitions. [2022-04-05 09:47:52,034 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:47:52,034 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 402 transitions. [2022-04-05 09:47:52,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-04-05 09:47:52,035 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:47:52,035 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:47:52,035 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-04-05 09:47:52,035 INFO L403 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:47:52,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:47:52,036 INFO L85 PathProgramCache]: Analyzing trace with hash 1958297485, now seen corresponding path program 1 times [2022-04-05 09:47:52,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:47:52,036 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903537936] [2022-04-05 09:47:52,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:47:52,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:47:52,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:47:52,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:47:52,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:47:52,125 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-04-05 09:47:52,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:47:52,125 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903537936] [2022-04-05 09:47:52,125 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [903537936] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:47:52,125 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:47:52,125 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:47:52,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84853167] [2022-04-05 09:47:52,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:47:52,125 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:47:52,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:47:52,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:47:52,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:47:52,126 INFO L87 Difference]: Start difference. First operand 268 states and 402 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:47:53,330 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:47:55,349 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:47:57,471 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:47:57,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:47:57,898 INFO L93 Difference]: Finished difference Result 619 states and 945 transitions. [2022-04-05 09:47:57,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:47:57,898 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 91 [2022-04-05 09:47:57,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:47:57,899 INFO L225 Difference]: With dead ends: 619 [2022-04-05 09:47:57,899 INFO L226 Difference]: Without dead ends: 377 [2022-04-05 09:47:57,900 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:47:57,900 INFO L913 BasicCegarLoop]: 154 mSDtfsCounter, 134 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 510 mSolverCounterSat, 60 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 438 SdHoareTripleChecker+Invalid, 571 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 510 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-04-05 09:47:57,900 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [134 Valid, 438 Invalid, 571 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 510 Invalid, 1 Unknown, 0 Unchecked, 5.8s Time] [2022-04-05 09:47:57,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2022-04-05 09:47:57,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 291. [2022-04-05 09:47:57,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 291 states, 286 states have (on average 1.548951048951049) internal successors, (443), 286 states have internal predecessors, (443), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:47:57,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 291 states and 447 transitions. [2022-04-05 09:47:57,905 INFO L78 Accepts]: Start accepts. Automaton has 291 states and 447 transitions. Word has length 91 [2022-04-05 09:47:57,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:47:57,906 INFO L478 AbstractCegarLoop]: Abstraction has 291 states and 447 transitions. [2022-04-05 09:47:57,906 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:47:57,906 INFO L276 IsEmpty]: Start isEmpty. Operand 291 states and 447 transitions. [2022-04-05 09:47:57,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-04-05 09:47:57,906 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:47:57,906 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:47:57,906 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-04-05 09:47:57,907 INFO L403 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:47:57,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:47:57,907 INFO L85 PathProgramCache]: Analyzing trace with hash -1677366494, now seen corresponding path program 1 times [2022-04-05 09:47:57,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:47:57,907 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867056996] [2022-04-05 09:47:57,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:47:57,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:47:57,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:47:58,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:47:58,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:47:58,017 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-04-05 09:47:58,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:47:58,018 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867056996] [2022-04-05 09:47:58,018 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1867056996] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:47:58,018 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:47:58,018 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:47:58,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613023857] [2022-04-05 09:47:58,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:47:58,019 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:47:58,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:47:58,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:47:58,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:47:58,019 INFO L87 Difference]: Start difference. First operand 291 states and 447 transitions. Second operand has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:47:59,452 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:48:02,432 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:48:04,464 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:48:04,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:48:04,890 INFO L93 Difference]: Finished difference Result 718 states and 1119 transitions. [2022-04-05 09:48:04,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:48:04,891 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 119 [2022-04-05 09:48:04,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:48:04,892 INFO L225 Difference]: With dead ends: 718 [2022-04-05 09:48:04,892 INFO L226 Difference]: Without dead ends: 453 [2022-04-05 09:48:04,893 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:48:04,893 INFO L913 BasicCegarLoop]: 160 mSDtfsCounter, 140 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 504 mSolverCounterSat, 47 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 450 SdHoareTripleChecker+Invalid, 553 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 504 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2022-04-05 09:48:04,893 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [140 Valid, 450 Invalid, 553 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 504 Invalid, 2 Unknown, 0 Unchecked, 6.9s Time] [2022-04-05 09:48:04,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 453 states. [2022-04-05 09:48:04,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 453 to 355. [2022-04-05 09:48:04,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 355 states, 350 states have (on average 1.562857142857143) internal successors, (547), 350 states have internal predecessors, (547), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:48:04,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 551 transitions. [2022-04-05 09:48:04,899 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 551 transitions. Word has length 119 [2022-04-05 09:48:04,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:48:04,899 INFO L478 AbstractCegarLoop]: Abstraction has 355 states and 551 transitions. [2022-04-05 09:48:04,899 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:48:04,899 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 551 transitions. [2022-04-05 09:48:04,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-04-05 09:48:04,900 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:48:04,900 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:48:04,900 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-04-05 09:48:04,900 INFO L403 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:48:04,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:48:04,900 INFO L85 PathProgramCache]: Analyzing trace with hash -493221854, now seen corresponding path program 1 times [2022-04-05 09:48:04,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:48:04,900 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510571117] [2022-04-05 09:48:04,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:48:04,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:48:04,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:48:05,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:48:05,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:48:05,005 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2022-04-05 09:48:05,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:48:05,006 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510571117] [2022-04-05 09:48:05,006 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1510571117] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:48:05,006 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:48:05,006 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:48:05,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727911900] [2022-04-05 09:48:05,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:48:05,006 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:48:05,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:48:05,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:48:05,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:48:05,007 INFO L87 Difference]: Start difference. First operand 355 states and 551 transitions. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 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) [2022-04-05 09:48:07,463 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:48:09,487 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:48:11,369 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:48:11,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:48:11,675 INFO L93 Difference]: Finished difference Result 691 states and 1082 transitions. [2022-04-05 09:48:11,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:48:11,676 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 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 124 [2022-04-05 09:48:11,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:48:11,677 INFO L225 Difference]: With dead ends: 691 [2022-04-05 09:48:11,677 INFO L226 Difference]: Without dead ends: 362 [2022-04-05 09:48:11,677 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:48:11,677 INFO L913 BasicCegarLoop]: 228 mSDtfsCounter, 30 mSDsluCounter, 363 mSDsCounter, 0 mSdLazyCounter, 395 mSolverCounterSat, 5 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 591 SdHoareTripleChecker+Invalid, 402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 395 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2022-04-05 09:48:11,678 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 591 Invalid, 402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 395 Invalid, 2 Unknown, 0 Unchecked, 6.7s Time] [2022-04-05 09:48:11,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2022-04-05 09:48:11,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 355. [2022-04-05 09:48:11,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 355 states, 350 states have (on average 1.56) internal successors, (546), 350 states have internal predecessors, (546), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:48:11,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 550 transitions. [2022-04-05 09:48:11,683 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 550 transitions. Word has length 124 [2022-04-05 09:48:11,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:48:11,683 INFO L478 AbstractCegarLoop]: Abstraction has 355 states and 550 transitions. [2022-04-05 09:48:11,683 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 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) [2022-04-05 09:48:11,683 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 550 transitions. [2022-04-05 09:48:11,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2022-04-05 09:48:11,684 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:48:11,684 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:48:11,684 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-04-05 09:48:11,684 INFO L403 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:48:11,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:48:11,684 INFO L85 PathProgramCache]: Analyzing trace with hash 423811832, now seen corresponding path program 1 times [2022-04-05 09:48:11,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:48:11,684 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359220993] [2022-04-05 09:48:11,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:48:11,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:48:11,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:48:11,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:48:11,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:48:11,766 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-04-05 09:48:11,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:48:11,766 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359220993] [2022-04-05 09:48:11,766 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [359220993] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:48:11,766 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:48:11,766 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:48:11,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306221370] [2022-04-05 09:48:11,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:48:11,767 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:48:11,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:48:11,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:48:11,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:48:11,767 INFO L87 Difference]: Start difference. First operand 355 states and 550 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:48:13,455 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:48:15,482 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:48:17,509 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:48:19,535 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:48:19,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:48:19,980 INFO L93 Difference]: Finished difference Result 784 states and 1221 transitions. [2022-04-05 09:48:19,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:48:19,980 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 125 [2022-04-05 09:48:19,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:48:19,981 INFO L225 Difference]: With dead ends: 784 [2022-04-05 09:48:19,981 INFO L226 Difference]: Without dead ends: 455 [2022-04-05 09:48:19,982 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:48:19,983 INFO L913 BasicCegarLoop]: 205 mSDtfsCounter, 91 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 531 mSolverCounterSat, 12 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 547 SdHoareTripleChecker+Invalid, 546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 531 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2022-04-05 09:48:19,983 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [91 Valid, 547 Invalid, 546 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 531 Invalid, 3 Unknown, 0 Unchecked, 8.2s Time] [2022-04-05 09:48:19,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 455 states. [2022-04-05 09:48:19,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 455 to 394. [2022-04-05 09:48:19,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 394 states, 389 states have (on average 1.5655526992287918) internal successors, (609), 389 states have internal predecessors, (609), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:48:19,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 613 transitions. [2022-04-05 09:48:19,991 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 613 transitions. Word has length 125 [2022-04-05 09:48:19,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:48:19,991 INFO L478 AbstractCegarLoop]: Abstraction has 394 states and 613 transitions. [2022-04-05 09:48:19,991 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:48:19,991 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 613 transitions. [2022-04-05 09:48:19,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2022-04-05 09:48:19,992 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:48:19,992 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:48:19,992 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-04-05 09:48:19,992 INFO L403 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:48:19,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:48:19,992 INFO L85 PathProgramCache]: Analyzing trace with hash 437344633, now seen corresponding path program 1 times [2022-04-05 09:48:19,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:48:19,992 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870420783] [2022-04-05 09:48:19,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:48:19,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:48:20,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:48:20,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:48:20,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:48:20,088 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-04-05 09:48:20,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:48:20,088 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1870420783] [2022-04-05 09:48:20,088 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1870420783] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:48:20,088 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:48:20,088 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:48:20,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14750574] [2022-04-05 09:48:20,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:48:20,088 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:48:20,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:48:20,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:48:20,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:48:20,089 INFO L87 Difference]: Start difference. First operand 394 states and 613 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:48:24,085 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:48:24,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:48:24,478 INFO L93 Difference]: Finished difference Result 888 states and 1387 transitions. [2022-04-05 09:48:24,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:48:24,480 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 125 [2022-04-05 09:48:24,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:48:24,481 INFO L225 Difference]: With dead ends: 888 [2022-04-05 09:48:24,481 INFO L226 Difference]: Without dead ends: 520 [2022-04-05 09:48:24,482 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:48:24,482 INFO L913 BasicCegarLoop]: 140 mSDtfsCounter, 136 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 60 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 410 SdHoareTripleChecker+Invalid, 558 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-04-05 09:48:24,482 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [136 Valid, 410 Invalid, 558 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 497 Invalid, 1 Unknown, 0 Unchecked, 4.4s Time] [2022-04-05 09:48:24,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 520 states. [2022-04-05 09:48:24,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 520 to 392. [2022-04-05 09:48:24,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 392 states, 387 states have (on average 1.565891472868217) internal successors, (606), 387 states have internal predecessors, (606), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:48:24,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 392 states to 392 states and 610 transitions. [2022-04-05 09:48:24,488 INFO L78 Accepts]: Start accepts. Automaton has 392 states and 610 transitions. Word has length 125 [2022-04-05 09:48:24,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:48:24,488 INFO L478 AbstractCegarLoop]: Abstraction has 392 states and 610 transitions. [2022-04-05 09:48:24,489 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:48:24,489 INFO L276 IsEmpty]: Start isEmpty. Operand 392 states and 610 transitions. [2022-04-05 09:48:24,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-04-05 09:48:24,489 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:48:24,489 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:48:24,489 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-04-05 09:48:24,490 INFO L403 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:48:24,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:48:24,490 INFO L85 PathProgramCache]: Analyzing trace with hash 295665995, now seen corresponding path program 1 times [2022-04-05 09:48:24,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:48:24,490 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514235786] [2022-04-05 09:48:24,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:48:24,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:48:24,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:48:24,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:48:24,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:48:24,599 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-04-05 09:48:24,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:48:24,600 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514235786] [2022-04-05 09:48:24,600 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [514235786] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:48:24,600 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:48:24,600 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:48:24,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335749227] [2022-04-05 09:48:24,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:48:24,601 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:48:24,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:48:24,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:48:24,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:48:24,602 INFO L87 Difference]: Start difference. First operand 392 states and 610 transitions. Second operand has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:48:27,934 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:48:28,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:48:28,626 INFO L93 Difference]: Finished difference Result 844 states and 1315 transitions. [2022-04-05 09:48:28,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:48:28,626 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 126 [2022-04-05 09:48:28,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:48:28,628 INFO L225 Difference]: With dead ends: 844 [2022-04-05 09:48:28,628 INFO L226 Difference]: Without dead ends: 478 [2022-04-05 09:48:28,629 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:48:28,629 INFO L913 BasicCegarLoop]: 140 mSDtfsCounter, 135 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 496 mSolverCounterSat, 62 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 410 SdHoareTripleChecker+Invalid, 559 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 496 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-04-05 09:48:28,629 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [135 Valid, 410 Invalid, 559 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 496 Invalid, 1 Unknown, 0 Unchecked, 4.0s Time] [2022-04-05 09:48:28,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 478 states. [2022-04-05 09:48:28,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 478 to 392. [2022-04-05 09:48:28,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 392 states, 387 states have (on average 1.5607235142118863) internal successors, (604), 387 states have internal predecessors, (604), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:48:28,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 392 states to 392 states and 608 transitions. [2022-04-05 09:48:28,635 INFO L78 Accepts]: Start accepts. Automaton has 392 states and 608 transitions. Word has length 126 [2022-04-05 09:48:28,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:48:28,635 INFO L478 AbstractCegarLoop]: Abstraction has 392 states and 608 transitions. [2022-04-05 09:48:28,636 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:48:28,636 INFO L276 IsEmpty]: Start isEmpty. Operand 392 states and 608 transitions. [2022-04-05 09:48:28,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-04-05 09:48:28,636 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:48:28,636 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:48:28,637 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-04-05 09:48:28,637 INFO L403 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:48:28,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:48:28,637 INFO L85 PathProgramCache]: Analyzing trace with hash -1786561130, now seen corresponding path program 1 times [2022-04-05 09:48:28,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:48:28,637 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258939428] [2022-04-05 09:48:28,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:48:28,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:48:28,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:48:28,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:48:28,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:48:28,724 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-04-05 09:48:28,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:48:28,724 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258939428] [2022-04-05 09:48:28,724 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1258939428] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:48:28,724 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:48:28,724 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:48:28,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067724113] [2022-04-05 09:48:28,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:48:28,724 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:48:28,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:48:28,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:48:28,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:48:28,725 INFO L87 Difference]: Start difference. First operand 392 states and 608 transitions. Second operand has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:48:31,877 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:48:32,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:48:32,705 INFO L93 Difference]: Finished difference Result 884 states and 1375 transitions. [2022-04-05 09:48:32,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:48:32,705 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 133 [2022-04-05 09:48:32,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:48:32,706 INFO L225 Difference]: With dead ends: 884 [2022-04-05 09:48:32,706 INFO L226 Difference]: Without dead ends: 518 [2022-04-05 09:48:32,707 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:48:32,707 INFO L913 BasicCegarLoop]: 140 mSDtfsCounter, 128 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 61 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 411 SdHoareTripleChecker+Invalid, 559 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-04-05 09:48:32,707 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [128 Valid, 411 Invalid, 559 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 497 Invalid, 1 Unknown, 0 Unchecked, 4.0s Time] [2022-04-05 09:48:32,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 518 states. [2022-04-05 09:48:32,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 518 to 435. [2022-04-05 09:48:32,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 435 states, 430 states have (on average 1.5651162790697675) internal successors, (673), 430 states have internal predecessors, (673), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:48:32,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 435 states to 435 states and 677 transitions. [2022-04-05 09:48:32,714 INFO L78 Accepts]: Start accepts. Automaton has 435 states and 677 transitions. Word has length 133 [2022-04-05 09:48:32,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:48:32,714 INFO L478 AbstractCegarLoop]: Abstraction has 435 states and 677 transitions. [2022-04-05 09:48:32,714 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:48:32,714 INFO L276 IsEmpty]: Start isEmpty. Operand 435 states and 677 transitions. [2022-04-05 09:48:32,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-04-05 09:48:32,715 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:48:32,715 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:48:32,715 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-04-05 09:48:32,715 INFO L403 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:48:32,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:48:32,715 INFO L85 PathProgramCache]: Analyzing trace with hash 1004226087, now seen corresponding path program 1 times [2022-04-05 09:48:32,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:48:32,716 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575696193] [2022-04-05 09:48:32,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:48:32,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:48:32,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:48:32,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:48:32,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:48:32,797 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-04-05 09:48:32,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:48:32,798 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [575696193] [2022-04-05 09:48:32,798 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [575696193] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:48:32,798 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:48:32,798 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:48:32,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146528427] [2022-04-05 09:48:32,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:48:32,798 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:48:32,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:48:32,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:48:32,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:48:32,799 INFO L87 Difference]: Start difference. First operand 435 states and 677 transitions. Second operand has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:48:34,493 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:48:36,200 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:48:38,230 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:48:39,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:48:39,442 INFO L93 Difference]: Finished difference Result 932 states and 1454 transitions. [2022-04-05 09:48:39,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:48:39,442 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 134 [2022-04-05 09:48:39,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:48:39,444 INFO L225 Difference]: With dead ends: 932 [2022-04-05 09:48:39,444 INFO L226 Difference]: Without dead ends: 523 [2022-04-05 09:48:39,445 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:48:39,445 INFO L913 BasicCegarLoop]: 205 mSDtfsCounter, 68 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 520 mSolverCounterSat, 12 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 547 SdHoareTripleChecker+Invalid, 533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 520 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2022-04-05 09:48:39,445 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [68 Valid, 547 Invalid, 533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 520 Invalid, 1 Unknown, 0 Unchecked, 6.6s Time] [2022-04-05 09:48:39,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 523 states. [2022-04-05 09:48:39,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 523 to 478. [2022-04-05 09:48:39,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 478 states, 473 states have (on average 1.5644820295983086) internal successors, (740), 473 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) [2022-04-05 09:48:39,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 478 states to 478 states and 744 transitions. [2022-04-05 09:48:39,461 INFO L78 Accepts]: Start accepts. Automaton has 478 states and 744 transitions. Word has length 134 [2022-04-05 09:48:39,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:48:39,461 INFO L478 AbstractCegarLoop]: Abstraction has 478 states and 744 transitions. [2022-04-05 09:48:39,461 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:48:39,461 INFO L276 IsEmpty]: Start isEmpty. Operand 478 states and 744 transitions. [2022-04-05 09:48:39,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-04-05 09:48:39,462 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:48:39,462 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:48:39,462 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-04-05 09:48:39,462 INFO L403 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:48:39,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:48:39,462 INFO L85 PathProgramCache]: Analyzing trace with hash -2122544954, now seen corresponding path program 1 times [2022-04-05 09:48:39,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:48:39,462 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540490763] [2022-04-05 09:48:39,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:48:39,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:48:39,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:48:39,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:48:39,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:48:39,553 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-04-05 09:48:39,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:48:39,553 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [540490763] [2022-04-05 09:48:39,553 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [540490763] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:48:39,553 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:48:39,553 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:48:39,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786747359] [2022-04-05 09:48:39,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:48:39,554 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:48:39,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:48:39,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:48:39,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:48:39,555 INFO L87 Difference]: Start difference. First operand 478 states and 744 transitions. Second operand has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:48:40,869 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:48:43,018 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:48:44,345 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:48:44,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:48:44,708 INFO L93 Difference]: Finished difference Result 977 states and 1525 transitions. [2022-04-05 09:48:44,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:48:44,708 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 134 [2022-04-05 09:48:44,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:48:44,710 INFO L225 Difference]: With dead ends: 977 [2022-04-05 09:48:44,710 INFO L226 Difference]: Without dead ends: 525 [2022-04-05 09:48:44,710 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:48:44,711 INFO L913 BasicCegarLoop]: 266 mSDtfsCounter, 35 mSDsluCounter, 401 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 667 SdHoareTripleChecker+Invalid, 492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-04-05 09:48:44,711 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [35 Valid, 667 Invalid, 492 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 482 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2022-04-05 09:48:44,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 525 states. [2022-04-05 09:48:44,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 525 to 502. [2022-04-05 09:48:44,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 502 states, 497 states have (on average 1.5613682092555332) internal successors, (776), 497 states have internal predecessors, (776), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:48:44,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 502 states to 502 states and 780 transitions. [2022-04-05 09:48:44,718 INFO L78 Accepts]: Start accepts. Automaton has 502 states and 780 transitions. Word has length 134 [2022-04-05 09:48:44,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:48:44,718 INFO L478 AbstractCegarLoop]: Abstraction has 502 states and 780 transitions. [2022-04-05 09:48:44,718 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:48:44,718 INFO L276 IsEmpty]: Start isEmpty. Operand 502 states and 780 transitions. [2022-04-05 09:48:44,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-04-05 09:48:44,719 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:48:44,719 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:48:44,720 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-04-05 09:48:44,720 INFO L403 AbstractCegarLoop]: === Iteration 27 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:48:44,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:48:44,720 INFO L85 PathProgramCache]: Analyzing trace with hash 111454881, now seen corresponding path program 1 times [2022-04-05 09:48:44,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:48:44,720 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039021536] [2022-04-05 09:48:44,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:48:44,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:48:44,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:48:44,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:48:44,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:48:44,819 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 102 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-04-05 09:48:44,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:48:44,819 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039021536] [2022-04-05 09:48:44,819 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1039021536] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:48:44,819 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:48:44,819 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:48:44,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681493300] [2022-04-05 09:48:44,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:48:44,819 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:48:44,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:48:44,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:48:44,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:48:44,820 INFO L87 Difference]: Start difference. First operand 502 states and 780 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:48:46,519 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:48:48,547 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:48:49,898 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:48:51,915 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:48:52,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:48:52,328 INFO L93 Difference]: Finished difference Result 1054 states and 1643 transitions. [2022-04-05 09:48:52,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:48:52,329 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 146 [2022-04-05 09:48:52,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:48:52,330 INFO L225 Difference]: With dead ends: 1054 [2022-04-05 09:48:52,330 INFO L226 Difference]: Without dead ends: 578 [2022-04-05 09:48:52,331 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:48:52,331 INFO L913 BasicCegarLoop]: 164 mSDtfsCounter, 155 mSDsluCounter, 294 mSDsCounter, 0 mSdLazyCounter, 498 mSolverCounterSat, 53 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 458 SdHoareTripleChecker+Invalid, 553 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 498 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2022-04-05 09:48:52,331 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [155 Valid, 458 Invalid, 553 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 498 Invalid, 2 Unknown, 0 Unchecked, 7.5s Time] [2022-04-05 09:48:52,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 578 states. [2022-04-05 09:48:52,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 578 to 502. [2022-04-05 09:48:52,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 502 states, 497 states have (on average 1.5432595573440644) internal successors, (767), 497 states have internal predecessors, (767), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:48:52,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 502 states to 502 states and 771 transitions. [2022-04-05 09:48:52,339 INFO L78 Accepts]: Start accepts. Automaton has 502 states and 771 transitions. Word has length 146 [2022-04-05 09:48:52,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:48:52,339 INFO L478 AbstractCegarLoop]: Abstraction has 502 states and 771 transitions. [2022-04-05 09:48:52,339 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:48:52,339 INFO L276 IsEmpty]: Start isEmpty. Operand 502 states and 771 transitions. [2022-04-05 09:48:52,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-04-05 09:48:52,340 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:48:52,340 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:48:52,340 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-04-05 09:48:52,340 INFO L403 AbstractCegarLoop]: === Iteration 28 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:48:52,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:48:52,340 INFO L85 PathProgramCache]: Analyzing trace with hash -1380090645, now seen corresponding path program 1 times [2022-04-05 09:48:52,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:48:52,340 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [489314441] [2022-04-05 09:48:52,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:48:52,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:48:52,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:48:52,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:48:52,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:48:52,423 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 134 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-04-05 09:48:52,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:48:52,423 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [489314441] [2022-04-05 09:48:52,423 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [489314441] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:48:52,423 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:48:52,423 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:48:52,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874898217] [2022-04-05 09:48:52,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:48:52,423 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:48:52,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:48:52,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:48:52,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:48:52,424 INFO L87 Difference]: Start difference. First operand 502 states and 771 transitions. Second operand has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:48:55,021 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:48:57,043 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:48:58,849 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:48:59,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:48:59,245 INFO L93 Difference]: Finished difference Result 1013 states and 1562 transitions. [2022-04-05 09:48:59,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:48:59,246 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 146 [2022-04-05 09:48:59,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:48:59,247 INFO L225 Difference]: With dead ends: 1013 [2022-04-05 09:48:59,247 INFO L226 Difference]: Without dead ends: 537 [2022-04-05 09:48:59,248 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:48:59,248 INFO L913 BasicCegarLoop]: 213 mSDtfsCounter, 71 mSDsluCounter, 350 mSDsCounter, 0 mSdLazyCounter, 503 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 563 SdHoareTripleChecker+Invalid, 512 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 503 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2022-04-05 09:48:59,248 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [71 Valid, 563 Invalid, 512 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 503 Invalid, 2 Unknown, 0 Unchecked, 6.8s Time] [2022-04-05 09:48:59,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 537 states. [2022-04-05 09:48:59,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 537 to 502. [2022-04-05 09:48:59,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 502 states, 497 states have (on average 1.5412474849094568) internal successors, (766), 497 states have internal predecessors, (766), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:48:59,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 502 states to 502 states and 770 transitions. [2022-04-05 09:48:59,256 INFO L78 Accepts]: Start accepts. Automaton has 502 states and 770 transitions. Word has length 146 [2022-04-05 09:48:59,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:48:59,256 INFO L478 AbstractCegarLoop]: Abstraction has 502 states and 770 transitions. [2022-04-05 09:48:59,256 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:48:59,256 INFO L276 IsEmpty]: Start isEmpty. Operand 502 states and 770 transitions. [2022-04-05 09:48:59,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-04-05 09:48:59,257 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:48:59,257 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:48:59,257 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-04-05 09:48:59,257 INFO L403 AbstractCegarLoop]: === Iteration 29 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:48:59,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:48:59,257 INFO L85 PathProgramCache]: Analyzing trace with hash 1302552011, now seen corresponding path program 1 times [2022-04-05 09:48:59,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:48:59,258 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411135065] [2022-04-05 09:48:59,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:48:59,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:48:59,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:48:59,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:48:59,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:48:59,348 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 136 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-04-05 09:48:59,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:48:59,348 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [411135065] [2022-04-05 09:48:59,348 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [411135065] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:48:59,348 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:48:59,349 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:48:59,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106117704] [2022-04-05 09:48:59,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:48:59,349 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:48:59,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:48:59,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:48:59,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:48:59,349 INFO L87 Difference]: Start difference. First operand 502 states and 770 transitions. Second operand has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:49:01,237 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:49:03,119 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:49:05,144 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:49:07,169 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:49:07,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:49:07,564 INFO L93 Difference]: Finished difference Result 1011 states and 1558 transitions. [2022-04-05 09:49:07,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:49:07,564 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 147 [2022-04-05 09:49:07,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:49:07,566 INFO L225 Difference]: With dead ends: 1011 [2022-04-05 09:49:07,566 INFO L226 Difference]: Without dead ends: 535 [2022-04-05 09:49:07,566 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:49:07,567 INFO L913 BasicCegarLoop]: 214 mSDtfsCounter, 68 mSDsluCounter, 351 mSDsCounter, 0 mSdLazyCounter, 501 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 565 SdHoareTripleChecker+Invalid, 510 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 501 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2022-04-05 09:49:07,567 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [68 Valid, 565 Invalid, 510 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 501 Invalid, 2 Unknown, 0 Unchecked, 8.2s Time] [2022-04-05 09:49:07,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 535 states. [2022-04-05 09:49:07,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 535 to 502. [2022-04-05 09:49:07,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 502 states, 497 states have (on average 1.539235412474849) internal successors, (765), 497 states have internal predecessors, (765), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:49:07,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 502 states to 502 states and 769 transitions. [2022-04-05 09:49:07,574 INFO L78 Accepts]: Start accepts. Automaton has 502 states and 769 transitions. Word has length 147 [2022-04-05 09:49:07,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:49:07,574 INFO L478 AbstractCegarLoop]: Abstraction has 502 states and 769 transitions. [2022-04-05 09:49:07,574 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:49:07,575 INFO L276 IsEmpty]: Start isEmpty. Operand 502 states and 769 transitions. [2022-04-05 09:49:07,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-04-05 09:49:07,575 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:49:07,575 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-04-05 09:49:07,576 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-04-05 09:49:07,576 INFO L403 AbstractCegarLoop]: === Iteration 30 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:49:07,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:49:07,576 INFO L85 PathProgramCache]: Analyzing trace with hash -2058960563, now seen corresponding path program 1 times [2022-04-05 09:49:07,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:49:07,576 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677839630] [2022-04-05 09:49:07,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:49:07,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:49:07,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:49:07,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:49:07,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:49:07,665 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 105 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-04-05 09:49:07,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:49:07,665 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677839630] [2022-04-05 09:49:07,665 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1677839630] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:49:07,665 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:49:07,665 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:49:07,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898276558] [2022-04-05 09:49:07,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:49:07,666 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:49:07,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:49:07,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:49:07,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:49:07,666 INFO L87 Difference]: Start difference. First operand 502 states and 769 transitions. Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:49:10,514 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:49:12,543 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:49:13,582 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:49:13,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:49:13,977 INFO L93 Difference]: Finished difference Result 1053 states and 1620 transitions. [2022-04-05 09:49:13,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:49:13,978 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 1 states have call successors, (3), 2 states have 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 [2022-04-05 09:49:13,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:49:13,979 INFO L225 Difference]: With dead ends: 1053 [2022-04-05 09:49:13,979 INFO L226 Difference]: Without dead ends: 577 [2022-04-05 09:49:13,980 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:49:13,980 INFO L913 BasicCegarLoop]: 165 mSDtfsCounter, 147 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 496 mSolverCounterSat, 52 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 460 SdHoareTripleChecker+Invalid, 550 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 496 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-04-05 09:49:13,980 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [147 Valid, 460 Invalid, 550 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 496 Invalid, 2 Unknown, 0 Unchecked, 6.3s Time] [2022-04-05 09:49:13,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 577 states. [2022-04-05 09:49:13,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 577 to 502. [2022-04-05 09:49:13,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 502 states, 497 states have (on average 1.523138832997988) internal successors, (757), 497 states have internal predecessors, (757), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:49:13,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 502 states to 502 states and 761 transitions. [2022-04-05 09:49:13,987 INFO L78 Accepts]: Start accepts. Automaton has 502 states and 761 transitions. Word has length 148 [2022-04-05 09:49:13,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:49:13,987 INFO L478 AbstractCegarLoop]: Abstraction has 502 states and 761 transitions. [2022-04-05 09:49:13,987 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:49:13,987 INFO L276 IsEmpty]: Start isEmpty. Operand 502 states and 761 transitions. [2022-04-05 09:49:13,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2022-04-05 09:49:13,988 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:49:13,988 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:49:13,988 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-04-05 09:49:13,988 INFO L403 AbstractCegarLoop]: === Iteration 31 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:49:13,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:49:13,989 INFO L85 PathProgramCache]: Analyzing trace with hash -1663867333, now seen corresponding path program 1 times [2022-04-05 09:49:13,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:49:13,989 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657942471] [2022-04-05 09:49:13,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:49:13,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:49:14,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:49:14,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:49:14,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:49:14,086 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 130 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-04-05 09:49:14,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:49:14,086 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657942471] [2022-04-05 09:49:14,087 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [657942471] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:49:14,087 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:49:14,087 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:49:14,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904186366] [2022-04-05 09:49:14,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:49:14,087 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:49:14,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:49:14,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:49:14,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:49:14,087 INFO L87 Difference]: Start difference. First operand 502 states and 761 transitions. Second operand has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:49:17,348 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:49:19,071 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:49:19,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:49:19,467 INFO L93 Difference]: Finished difference Result 1096 states and 1671 transitions. [2022-04-05 09:49:19,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:49:19,468 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 150 [2022-04-05 09:49:19,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:49:19,469 INFO L225 Difference]: With dead ends: 1096 [2022-04-05 09:49:19,469 INFO L226 Difference]: Without dead ends: 620 [2022-04-05 09:49:19,470 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:49:19,470 INFO L913 BasicCegarLoop]: 165 mSDtfsCounter, 136 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 498 mSolverCounterSat, 50 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 460 SdHoareTripleChecker+Invalid, 549 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 498 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-04-05 09:49:19,470 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [136 Valid, 460 Invalid, 549 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 498 Invalid, 1 Unknown, 0 Unchecked, 5.4s Time] [2022-04-05 09:49:19,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 620 states. [2022-04-05 09:49:19,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 620 to 530. [2022-04-05 09:49:19,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 530 states, 525 states have (on average 1.5104761904761905) internal successors, (793), 525 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) [2022-04-05 09:49:19,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 530 states to 530 states and 797 transitions. [2022-04-05 09:49:19,485 INFO L78 Accepts]: Start accepts. Automaton has 530 states and 797 transitions. Word has length 150 [2022-04-05 09:49:19,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:49:19,486 INFO L478 AbstractCegarLoop]: Abstraction has 530 states and 797 transitions. [2022-04-05 09:49:19,486 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:49:19,486 INFO L276 IsEmpty]: Start isEmpty. Operand 530 states and 797 transitions. [2022-04-05 09:49:19,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2022-04-05 09:49:19,487 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:49:19,487 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:49:19,487 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-04-05 09:49:19,487 INFO L403 AbstractCegarLoop]: === Iteration 32 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:49:19,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:49:19,487 INFO L85 PathProgramCache]: Analyzing trace with hash 227374365, now seen corresponding path program 1 times [2022-04-05 09:49:19,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:49:19,487 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1747658181] [2022-04-05 09:49:19,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:49:19,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:49:19,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:49:19,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:49:19,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:49:19,591 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-04-05 09:49:19,591 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:49:19,591 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1747658181] [2022-04-05 09:49:19,591 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1747658181] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:49:19,591 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:49:19,591 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:49:19,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915393469] [2022-04-05 09:49:19,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:49:19,591 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:49:19,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:49:19,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:49:19,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:49:19,592 INFO L87 Difference]: Start difference. First operand 530 states and 797 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:49:20,823 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:49:22,841 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:49:24,149 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:49:24,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:49:24,557 INFO L93 Difference]: Finished difference Result 1109 states and 1676 transitions. [2022-04-05 09:49:24,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:49:24,558 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 151 [2022-04-05 09:49:24,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:49:24,559 INFO L225 Difference]: With dead ends: 1109 [2022-04-05 09:49:24,559 INFO L226 Difference]: Without dead ends: 605 [2022-04-05 09:49:24,560 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:49:24,560 INFO L913 BasicCegarLoop]: 151 mSDtfsCounter, 135 mSDsluCounter, 281 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 54 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 432 SdHoareTripleChecker+Invalid, 538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-04-05 09:49:24,560 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [135 Valid, 432 Invalid, 538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 483 Invalid, 1 Unknown, 0 Unchecked, 4.9s Time] [2022-04-05 09:49:24,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 605 states. [2022-04-05 09:49:24,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 605 to 530. [2022-04-05 09:49:24,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 530 states, 525 states have (on average 1.497142857142857) internal successors, (786), 525 states have internal predecessors, (786), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:49:24,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 530 states to 530 states and 790 transitions. [2022-04-05 09:49:24,567 INFO L78 Accepts]: Start accepts. Automaton has 530 states and 790 transitions. Word has length 151 [2022-04-05 09:49:24,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:49:24,568 INFO L478 AbstractCegarLoop]: Abstraction has 530 states and 790 transitions. [2022-04-05 09:49:24,568 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:49:24,568 INFO L276 IsEmpty]: Start isEmpty. Operand 530 states and 790 transitions. [2022-04-05 09:49:24,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-04-05 09:49:24,569 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:49:24,569 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:49:24,569 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-04-05 09:49:24,569 INFO L403 AbstractCegarLoop]: === Iteration 33 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:49:24,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:49:24,569 INFO L85 PathProgramCache]: Analyzing trace with hash 1919200453, now seen corresponding path program 1 times [2022-04-05 09:49:24,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:49:24,569 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080407992] [2022-04-05 09:49:24,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:49:24,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:49:24,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:49:24,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:49:24,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:49:24,658 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 122 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-04-05 09:49:24,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:49:24,658 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080407992] [2022-04-05 09:49:24,659 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1080407992] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:49:24,659 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:49:24,659 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:49:24,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52043565] [2022-04-05 09:49:24,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:49:24,659 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:49:24,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:49:24,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:49:24,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:49:24,659 INFO L87 Difference]: Start difference. First operand 530 states and 790 transitions. Second operand has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:49:27,486 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:49:28,758 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:49:29,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:49:29,106 INFO L93 Difference]: Finished difference Result 1058 states and 1584 transitions. [2022-04-05 09:49:29,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:49:29,106 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 156 [2022-04-05 09:49:29,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:49:29,108 INFO L225 Difference]: With dead ends: 1058 [2022-04-05 09:49:29,108 INFO L226 Difference]: Without dead ends: 554 [2022-04-05 09:49:29,108 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:49:29,108 INFO L913 BasicCegarLoop]: 231 mSDtfsCounter, 62 mSDsluCounter, 368 mSDsCounter, 0 mSdLazyCounter, 491 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 599 SdHoareTripleChecker+Invalid, 498 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 491 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-04-05 09:49:29,109 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [62 Valid, 599 Invalid, 498 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 491 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2022-04-05 09:49:29,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 554 states. [2022-04-05 09:49:29,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 554 to 530. [2022-04-05 09:49:29,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 530 states, 525 states have (on average 1.4952380952380953) internal successors, (785), 525 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) [2022-04-05 09:49:29,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 530 states to 530 states and 789 transitions. [2022-04-05 09:49:29,115 INFO L78 Accepts]: Start accepts. Automaton has 530 states and 789 transitions. Word has length 156 [2022-04-05 09:49:29,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:49:29,115 INFO L478 AbstractCegarLoop]: Abstraction has 530 states and 789 transitions. [2022-04-05 09:49:29,115 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:49:29,115 INFO L276 IsEmpty]: Start isEmpty. Operand 530 states and 789 transitions. [2022-04-05 09:49:29,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-04-05 09:49:29,116 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:49:29,126 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:49:29,126 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-04-05 09:49:29,126 INFO L403 AbstractCegarLoop]: === Iteration 34 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:49:29,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:49:29,126 INFO L85 PathProgramCache]: Analyzing trace with hash 932617764, now seen corresponding path program 1 times [2022-04-05 09:49:29,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:49:29,126 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640537480] [2022-04-05 09:49:29,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:49:29,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:49:29,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:49:29,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:49:29,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:49:29,211 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 137 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-04-05 09:49:29,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:49:29,211 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640537480] [2022-04-05 09:49:29,211 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [640537480] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:49:29,211 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:49:29,211 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-05 09:49:29,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980194616] [2022-04-05 09:49:29,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:49:29,212 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-05 09:49:29,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:49:29,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-05 09:49:29,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 09:49:29,212 INFO L87 Difference]: Start difference. First operand 530 states and 789 transitions. Second operand has 4 states, 4 states have (on average 31.0) internal successors, (124), 3 states have internal predecessors, (124), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:49:32,141 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:49:32,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:49:32,471 INFO L93 Difference]: Finished difference Result 1533 states and 2301 transitions. [2022-04-05 09:49:32,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-05 09:49:32,472 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.0) internal successors, (124), 3 states have internal predecessors, (124), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 156 [2022-04-05 09:49:32,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:49:32,474 INFO L225 Difference]: With dead ends: 1533 [2022-04-05 09:49:32,474 INFO L226 Difference]: Without dead ends: 1029 [2022-04-05 09:49:32,475 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 09:49:32,475 INFO L913 BasicCegarLoop]: 262 mSDtfsCounter, 144 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 349 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 456 SdHoareTripleChecker+Invalid, 371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 349 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-04-05 09:49:32,475 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [144 Valid, 456 Invalid, 371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 349 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-04-05 09:49:32,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1029 states. [2022-04-05 09:49:32,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1029 to 1027. [2022-04-05 09:49:32,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1027 states, 1022 states have (on average 1.4833659491193738) internal successors, (1516), 1022 states have internal predecessors, (1516), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:49:32,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1027 states to 1027 states and 1520 transitions. [2022-04-05 09:49:32,488 INFO L78 Accepts]: Start accepts. Automaton has 1027 states and 1520 transitions. Word has length 156 [2022-04-05 09:49:32,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:49:32,488 INFO L478 AbstractCegarLoop]: Abstraction has 1027 states and 1520 transitions. [2022-04-05 09:49:32,488 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.0) internal successors, (124), 3 states have internal predecessors, (124), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:49:32,488 INFO L276 IsEmpty]: Start isEmpty. Operand 1027 states and 1520 transitions. [2022-04-05 09:49:32,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-04-05 09:49:32,490 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:49:32,490 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:49:32,490 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-04-05 09:49:32,490 INFO L403 AbstractCegarLoop]: === Iteration 35 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:49:32,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:49:32,490 INFO L85 PathProgramCache]: Analyzing trace with hash 2014426051, now seen corresponding path program 1 times [2022-04-05 09:49:32,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:49:32,490 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997454594] [2022-04-05 09:49:32,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:49:32,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:49:32,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:49:32,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:49:32,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:49:32,571 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-04-05 09:49:32,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:49:32,571 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997454594] [2022-04-05 09:49:32,571 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [997454594] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:49:32,571 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:49:32,571 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-05 09:49:32,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325693684] [2022-04-05 09:49:32,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:49:32,572 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-05 09:49:32,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:49:32,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-05 09:49:32,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 09:49:32,572 INFO L87 Difference]: Start difference. First operand 1027 states and 1520 transitions. Second operand has 4 states, 4 states have (on average 25.25) internal successors, (101), 3 states have internal predecessors, (101), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:49:33,973 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:49:35,984 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:49:36,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:49:36,254 INFO L93 Difference]: Finished difference Result 2055 states and 3047 transitions. [2022-04-05 09:49:36,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-05 09:49:36,254 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.25) internal successors, (101), 3 states have internal predecessors, (101), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 156 [2022-04-05 09:49:36,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:49:36,257 INFO L225 Difference]: With dead ends: 2055 [2022-04-05 09:49:36,257 INFO L226 Difference]: Without dead ends: 1054 [2022-04-05 09:49:36,258 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 09:49:36,258 INFO L913 BasicCegarLoop]: 245 mSDtfsCounter, 15 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 294 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 439 SdHoareTripleChecker+Invalid, 297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 294 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-04-05 09:49:36,258 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 439 Invalid, 297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 294 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-04-05 09:49:36,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1054 states. [2022-04-05 09:49:36,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1054 to 1054. [2022-04-05 09:49:36,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1054 states, 1049 states have (on average 1.478551000953289) internal successors, (1551), 1049 states have internal predecessors, (1551), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:49:36,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1054 states to 1054 states and 1555 transitions. [2022-04-05 09:49:36,273 INFO L78 Accepts]: Start accepts. Automaton has 1054 states and 1555 transitions. Word has length 156 [2022-04-05 09:49:36,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:49:36,273 INFO L478 AbstractCegarLoop]: Abstraction has 1054 states and 1555 transitions. [2022-04-05 09:49:36,273 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.25) internal successors, (101), 3 states have internal predecessors, (101), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:49:36,273 INFO L276 IsEmpty]: Start isEmpty. Operand 1054 states and 1555 transitions. [2022-04-05 09:49:36,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-04-05 09:49:36,275 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:49:36,275 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:49:36,275 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-04-05 09:49:36,275 INFO L403 AbstractCegarLoop]: === Iteration 36 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:49:36,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:49:36,276 INFO L85 PathProgramCache]: Analyzing trace with hash 204522466, now seen corresponding path program 1 times [2022-04-05 09:49:36,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:49:36,276 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559984151] [2022-04-05 09:49:36,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:49:36,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:49:36,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:49:36,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:49:36,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:49:36,351 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2022-04-05 09:49:36,352 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:49:36,352 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559984151] [2022-04-05 09:49:36,352 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [559984151] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:49:36,352 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:49:36,352 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-05 09:49:36,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385855087] [2022-04-05 09:49:36,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:49:36,353 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-05 09:49:36,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:49:36,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-05 09:49:36,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 09:49:36,353 INFO L87 Difference]: Start difference. First operand 1054 states and 1555 transitions. Second operand has 4 states, 4 states have (on average 21.25) internal successors, (85), 3 states have internal predecessors, (85), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:49:37,693 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:49:39,713 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:49:40,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:49:40,864 INFO L93 Difference]: Finished difference Result 2084 states and 3083 transitions. [2022-04-05 09:49:40,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-05 09:49:40,864 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 3 states have internal predecessors, (85), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 156 [2022-04-05 09:49:40,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:49:40,866 INFO L225 Difference]: With dead ends: 2084 [2022-04-05 09:49:40,866 INFO L226 Difference]: Without dead ends: 1056 [2022-04-05 09:49:40,867 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 09:49:40,868 INFO L913 BasicCegarLoop]: 233 mSDtfsCounter, 4 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 279 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 418 SdHoareTripleChecker+Invalid, 282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 279 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-04-05 09:49:40,868 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 418 Invalid, 282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 279 Invalid, 1 Unknown, 0 Unchecked, 4.5s Time] [2022-04-05 09:49:40,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1056 states. [2022-04-05 09:49:40,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1056 to 1056. [2022-04-05 09:49:40,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1056 states, 1051 states have (on average 1.477640342530923) internal successors, (1553), 1051 states have internal predecessors, (1553), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:49:40,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1056 states to 1056 states and 1557 transitions. [2022-04-05 09:49:40,879 INFO L78 Accepts]: Start accepts. Automaton has 1056 states and 1557 transitions. Word has length 156 [2022-04-05 09:49:40,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:49:40,879 INFO L478 AbstractCegarLoop]: Abstraction has 1056 states and 1557 transitions. [2022-04-05 09:49:40,880 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 3 states have internal predecessors, (85), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:49:40,880 INFO L276 IsEmpty]: Start isEmpty. Operand 1056 states and 1557 transitions. [2022-04-05 09:49:40,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2022-04-05 09:49:40,881 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:49:40,881 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:49:40,881 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-04-05 09:49:40,881 INFO L403 AbstractCegarLoop]: === Iteration 37 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:49:40,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:49:40,882 INFO L85 PathProgramCache]: Analyzing trace with hash -212926458, now seen corresponding path program 1 times [2022-04-05 09:49:40,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:49:40,882 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641628326] [2022-04-05 09:49:40,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:49:40,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:49:40,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:49:40,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:49:40,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:49:40,963 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 144 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-04-05 09:49:40,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:49:40,963 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1641628326] [2022-04-05 09:49:40,963 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1641628326] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:49:40,963 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:49:40,963 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:49:40,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933706367] [2022-04-05 09:49:40,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:49:40,963 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:49:40,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:49:40,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:49:40,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:49:40,964 INFO L87 Difference]: Start difference. First operand 1056 states and 1557 transitions. Second operand has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:49:43,920 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:49:46,851 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:49:47,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:49:47,230 INFO L93 Difference]: Finished difference Result 2132 states and 3144 transitions. [2022-04-05 09:49:47,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:49:47,230 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 158 [2022-04-05 09:49:47,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:49:47,233 INFO L225 Difference]: With dead ends: 2132 [2022-04-05 09:49:47,233 INFO L226 Difference]: Without dead ends: 1104 [2022-04-05 09:49:47,234 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:49:47,234 INFO L913 BasicCegarLoop]: 233 mSDtfsCounter, 50 mSDsluCounter, 370 mSDsCounter, 0 mSdLazyCounter, 492 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 603 SdHoareTripleChecker+Invalid, 500 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 492 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-04-05 09:49:47,234 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [50 Valid, 603 Invalid, 500 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 492 Invalid, 1 Unknown, 0 Unchecked, 6.2s Time] [2022-04-05 09:49:47,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1104 states. [2022-04-05 09:49:47,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1104 to 1056. [2022-04-05 09:49:47,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1056 states, 1051 states have (on average 1.4757373929590867) internal successors, (1551), 1051 states have internal predecessors, (1551), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:49:47,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1056 states to 1056 states and 1555 transitions. [2022-04-05 09:49:47,262 INFO L78 Accepts]: Start accepts. Automaton has 1056 states and 1555 transitions. Word has length 158 [2022-04-05 09:49:47,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:49:47,262 INFO L478 AbstractCegarLoop]: Abstraction has 1056 states and 1555 transitions. [2022-04-05 09:49:47,262 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:49:47,262 INFO L276 IsEmpty]: Start isEmpty. Operand 1056 states and 1555 transitions. [2022-04-05 09:49:47,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2022-04-05 09:49:47,264 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:49:47,264 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:49:47,264 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-04-05 09:49:47,264 INFO L403 AbstractCegarLoop]: === Iteration 38 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:49:47,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:49:47,265 INFO L85 PathProgramCache]: Analyzing trace with hash -879309571, now seen corresponding path program 1 times [2022-04-05 09:49:47,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:49:47,265 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180646834] [2022-04-05 09:49:47,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:49:47,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:49:47,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:49:47,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:49:47,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:49:47,342 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 128 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-04-05 09:49:47,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:49:47,342 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180646834] [2022-04-05 09:49:47,342 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1180646834] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:49:47,342 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:49:47,342 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-05 09:49:47,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496850585] [2022-04-05 09:49:47,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:49:47,343 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-05 09:49:47,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:49:47,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-05 09:49:47,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 09:49:47,343 INFO L87 Difference]: Start difference. First operand 1056 states and 1555 transitions. Second operand has 4 states, 4 states have (on average 32.0) internal successors, (128), 3 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:49:49,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:49:49,954 INFO L93 Difference]: Finished difference Result 2583 states and 3830 transitions. [2022-04-05 09:49:49,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-05 09:49:49,954 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.0) internal successors, (128), 3 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 158 [2022-04-05 09:49:49,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:49:49,958 INFO L225 Difference]: With dead ends: 2583 [2022-04-05 09:49:49,958 INFO L226 Difference]: Without dead ends: 1555 [2022-04-05 09:49:49,959 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 09:49:49,959 INFO L913 BasicCegarLoop]: 402 mSDtfsCounter, 149 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 489 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 596 SdHoareTripleChecker+Invalid, 511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 489 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-04-05 09:49:49,959 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [149 Valid, 596 Invalid, 511 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 489 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-04-05 09:49:49,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1555 states. [2022-04-05 09:49:49,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1555 to 1548. [2022-04-05 09:49:49,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1548 states, 1543 states have (on average 1.475048606610499) internal successors, (2276), 1543 states have internal predecessors, (2276), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:49:49,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1548 states to 1548 states and 2280 transitions. [2022-04-05 09:49:49,987 INFO L78 Accepts]: Start accepts. Automaton has 1548 states and 2280 transitions. Word has length 158 [2022-04-05 09:49:49,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:49:49,987 INFO L478 AbstractCegarLoop]: Abstraction has 1548 states and 2280 transitions. [2022-04-05 09:49:49,987 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.0) internal successors, (128), 3 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:49:49,987 INFO L276 IsEmpty]: Start isEmpty. Operand 1548 states and 2280 transitions. [2022-04-05 09:49:49,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2022-04-05 09:49:49,989 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:49:49,989 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:49:49,989 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-04-05 09:49:49,989 INFO L403 AbstractCegarLoop]: === Iteration 39 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:49:49,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:49:49,989 INFO L85 PathProgramCache]: Analyzing trace with hash 1161711826, now seen corresponding path program 1 times [2022-04-05 09:49:49,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:49:49,989 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782039359] [2022-04-05 09:49:49,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:49:49,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:49:50,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:49:50,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:49:50,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:49:50,073 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 146 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-04-05 09:49:50,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:49:50,073 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782039359] [2022-04-05 09:49:50,073 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1782039359] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:49:50,073 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:49:50,073 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:49:50,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702175614] [2022-04-05 09:49:50,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:49:50,074 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:49:50,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:49:50,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:49:50,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:49:50,074 INFO L87 Difference]: Start difference. First operand 1548 states and 2280 transitions. Second operand has 5 states, 5 states have (on average 22.8) internal successors, (114), 4 states have internal predecessors, (114), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:49:51,412 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:49:53,433 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:49:55,329 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:49:57,252 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:49:57,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:49:57,615 INFO L93 Difference]: Finished difference Result 3131 states and 4608 transitions. [2022-04-05 09:49:57,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:49:57,616 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.8) internal successors, (114), 4 states have internal predecessors, (114), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 159 [2022-04-05 09:49:57,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:49:57,619 INFO L225 Difference]: With dead ends: 3131 [2022-04-05 09:49:57,619 INFO L226 Difference]: Without dead ends: 1611 [2022-04-05 09:49:57,621 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:49:57,621 INFO L913 BasicCegarLoop]: 233 mSDtfsCounter, 45 mSDsluCounter, 370 mSDsCounter, 0 mSdLazyCounter, 489 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 603 SdHoareTripleChecker+Invalid, 497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 489 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2022-04-05 09:49:57,621 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [45 Valid, 603 Invalid, 497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 489 Invalid, 1 Unknown, 0 Unchecked, 7.5s Time] [2022-04-05 09:49:57,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1611 states. [2022-04-05 09:49:57,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1611 to 1548. [2022-04-05 09:49:57,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1548 states, 1543 states have (on average 1.4731043421905379) internal successors, (2273), 1543 states have internal predecessors, (2273), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:49:57,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1548 states to 1548 states and 2277 transitions. [2022-04-05 09:49:57,639 INFO L78 Accepts]: Start accepts. Automaton has 1548 states and 2277 transitions. Word has length 159 [2022-04-05 09:49:57,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:49:57,639 INFO L478 AbstractCegarLoop]: Abstraction has 1548 states and 2277 transitions. [2022-04-05 09:49:57,639 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.8) internal successors, (114), 4 states have internal predecessors, (114), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:49:57,639 INFO L276 IsEmpty]: Start isEmpty. Operand 1548 states and 2277 transitions. [2022-04-05 09:49:57,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2022-04-05 09:49:57,641 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:49:57,641 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:49:57,641 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-04-05 09:49:57,641 INFO L403 AbstractCegarLoop]: === Iteration 40 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:49:57,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:49:57,641 INFO L85 PathProgramCache]: Analyzing trace with hash -364993837, now seen corresponding path program 1 times [2022-04-05 09:49:57,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:49:57,641 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2116340923] [2022-04-05 09:49:57,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:49:57,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:49:57,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:49:57,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:49:57,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:49:57,733 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 115 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2022-04-05 09:49:57,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:49:57,734 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2116340923] [2022-04-05 09:49:57,734 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2116340923] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:49:57,734 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:49:57,734 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:49:57,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347827528] [2022-04-05 09:49:57,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:49:57,734 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:49:57,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:49:57,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:49:57,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:49:57,734 INFO L87 Difference]: Start difference. First operand 1548 states and 2277 transitions. Second operand has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:49:59,050 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:50:01,072 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:50:03,101 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:50:05,127 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:50:05,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:50:05,506 INFO L93 Difference]: Finished difference Result 3188 states and 4693 transitions. [2022-04-05 09:50:05,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:50:05,507 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 159 [2022-04-05 09:50:05,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:50:05,511 INFO L225 Difference]: With dead ends: 3188 [2022-04-05 09:50:05,511 INFO L226 Difference]: Without dead ends: 1668 [2022-04-05 09:50:05,512 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:50:05,513 INFO L913 BasicCegarLoop]: 260 mSDtfsCounter, 30 mSDsluCounter, 395 mSDsCounter, 0 mSdLazyCounter, 461 mSolverCounterSat, 5 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 655 SdHoareTripleChecker+Invalid, 469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 461 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2022-04-05 09:50:05,513 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 655 Invalid, 469 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 461 Invalid, 3 Unknown, 0 Unchecked, 7.7s Time] [2022-04-05 09:50:05,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1668 states. [2022-04-05 09:50:05,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1668 to 1626. [2022-04-05 09:50:05,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1626 states, 1621 states have (on average 1.472547809993831) internal successors, (2387), 1621 states have internal predecessors, (2387), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:50:05,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1626 states to 1626 states and 2391 transitions. [2022-04-05 09:50:05,532 INFO L78 Accepts]: Start accepts. Automaton has 1626 states and 2391 transitions. Word has length 159 [2022-04-05 09:50:05,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:50:05,532 INFO L478 AbstractCegarLoop]: Abstraction has 1626 states and 2391 transitions. [2022-04-05 09:50:05,532 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:50:05,532 INFO L276 IsEmpty]: Start isEmpty. Operand 1626 states and 2391 transitions. [2022-04-05 09:50:05,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-04-05 09:50:05,534 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:50:05,534 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 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] [2022-04-05 09:50:05,534 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-04-05 09:50:05,534 INFO L403 AbstractCegarLoop]: === Iteration 41 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:50:05,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:50:05,534 INFO L85 PathProgramCache]: Analyzing trace with hash 1942483546, now seen corresponding path program 1 times [2022-04-05 09:50:05,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:50:05,535 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003178312] [2022-04-05 09:50:05,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:50:05,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:50:05,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:50:05,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:50:05,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:50:05,649 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 126 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-04-05 09:50:05,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:50:05,649 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003178312] [2022-04-05 09:50:05,649 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1003178312] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:50:05,649 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:50:05,649 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:50:05,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731303797] [2022-04-05 09:50:05,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:50:05,650 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:50:05,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:50:05,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:50:05,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:50:05,661 INFO L87 Difference]: Start difference. First operand 1626 states and 2391 transitions. Second operand has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:50:09,150 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:50:09,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:50:09,576 INFO L93 Difference]: Finished difference Result 3435 states and 5038 transitions. [2022-04-05 09:50:09,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:50:09,576 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 165 [2022-04-05 09:50:09,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:50:09,580 INFO L225 Difference]: With dead ends: 3435 [2022-04-05 09:50:09,580 INFO L226 Difference]: Without dead ends: 1837 [2022-04-05 09:50:09,582 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:50:09,582 INFO L913 BasicCegarLoop]: 153 mSDtfsCounter, 137 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 486 mSolverCounterSat, 52 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 436 SdHoareTripleChecker+Invalid, 539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 486 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-04-05 09:50:09,582 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [137 Valid, 436 Invalid, 539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 486 Invalid, 1 Unknown, 0 Unchecked, 3.9s Time] [2022-04-05 09:50:09,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1837 states. [2022-04-05 09:50:09,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1837 to 1626. [2022-04-05 09:50:09,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1626 states, 1621 states have (on average 1.4577421344848858) internal successors, (2363), 1621 states have internal predecessors, (2363), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:50:09,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1626 states to 1626 states and 2367 transitions. [2022-04-05 09:50:09,604 INFO L78 Accepts]: Start accepts. Automaton has 1626 states and 2367 transitions. Word has length 165 [2022-04-05 09:50:09,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:50:09,604 INFO L478 AbstractCegarLoop]: Abstraction has 1626 states and 2367 transitions. [2022-04-05 09:50:09,604 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:50:09,604 INFO L276 IsEmpty]: Start isEmpty. Operand 1626 states and 2367 transitions. [2022-04-05 09:50:09,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2022-04-05 09:50:09,606 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:50:09,606 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 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] [2022-04-05 09:50:09,606 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-04-05 09:50:09,606 INFO L403 AbstractCegarLoop]: === Iteration 42 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:50:09,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:50:09,607 INFO L85 PathProgramCache]: Analyzing trace with hash -544777350, now seen corresponding path program 1 times [2022-04-05 09:50:09,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:50:09,607 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569645481] [2022-04-05 09:50:09,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:50:09,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:50:09,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:50:09,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:50:09,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:50:09,699 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 128 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-04-05 09:50:09,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:50:09,700 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569645481] [2022-04-05 09:50:09,700 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1569645481] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:50:09,700 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:50:09,700 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:50:09,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230295479] [2022-04-05 09:50:09,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:50:09,700 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:50:09,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:50:09,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:50:09,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:50:09,701 INFO L87 Difference]: Start difference. First operand 1626 states and 2367 transitions. Second operand has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:50:12,481 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:50:14,507 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:50:16,101 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:50:16,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:50:16,461 INFO L93 Difference]: Finished difference Result 3281 states and 4773 transitions. [2022-04-05 09:50:16,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:50:16,461 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 166 [2022-04-05 09:50:16,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:50:16,465 INFO L225 Difference]: With dead ends: 3281 [2022-04-05 09:50:16,465 INFO L226 Difference]: Without dead ends: 1683 [2022-04-05 09:50:16,467 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:50:16,467 INFO L913 BasicCegarLoop]: 236 mSDtfsCounter, 51 mSDsluCounter, 373 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 609 SdHoareTripleChecker+Invalid, 491 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2022-04-05 09:50:16,467 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [51 Valid, 609 Invalid, 491 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 482 Invalid, 2 Unknown, 0 Unchecked, 6.7s Time] [2022-04-05 09:50:16,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1683 states. [2022-04-05 09:50:16,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1683 to 1626. [2022-04-05 09:50:16,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1626 states, 1621 states have (on average 1.4558914250462678) internal successors, (2360), 1621 states have internal predecessors, (2360), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:50:16,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1626 states to 1626 states and 2364 transitions. [2022-04-05 09:50:16,488 INFO L78 Accepts]: Start accepts. Automaton has 1626 states and 2364 transitions. Word has length 166 [2022-04-05 09:50:16,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:50:16,488 INFO L478 AbstractCegarLoop]: Abstraction has 1626 states and 2364 transitions. [2022-04-05 09:50:16,488 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:50:16,488 INFO L276 IsEmpty]: Start isEmpty. Operand 1626 states and 2364 transitions. [2022-04-05 09:50:16,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2022-04-05 09:50:16,490 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:50:16,490 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:50:16,490 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-04-05 09:50:16,490 INFO L403 AbstractCegarLoop]: === Iteration 43 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:50:16,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:50:16,490 INFO L85 PathProgramCache]: Analyzing trace with hash -214165331, now seen corresponding path program 1 times [2022-04-05 09:50:16,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:50:16,491 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [672662608] [2022-04-05 09:50:16,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:50:16,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:50:16,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:50:16,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:50:16,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:50:16,601 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 140 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-04-05 09:50:16,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:50:16,602 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [672662608] [2022-04-05 09:50:16,602 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [672662608] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:50:16,602 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:50:16,602 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:50:16,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012401251] [2022-04-05 09:50:16,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:50:16,603 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:50:16,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:50:16,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:50:16,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:50:16,603 INFO L87 Difference]: Start difference. First operand 1626 states and 2364 transitions. Second operand has 5 states, 5 states have (on average 24.4) internal successors, (122), 4 states have internal predecessors, (122), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:50:18,762 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:50:20,224 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:50:22,248 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:50:22,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:50:22,685 INFO L93 Difference]: Finished difference Result 3564 states and 5179 transitions. [2022-04-05 09:50:22,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:50:22,686 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.4) internal successors, (122), 4 states have internal predecessors, (122), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 169 [2022-04-05 09:50:22,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:50:22,689 INFO L225 Difference]: With dead ends: 3564 [2022-04-05 09:50:22,689 INFO L226 Difference]: Without dead ends: 1966 [2022-04-05 09:50:22,691 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:50:22,691 INFO L913 BasicCegarLoop]: 151 mSDtfsCounter, 130 mSDsluCounter, 281 mSDsCounter, 0 mSdLazyCounter, 484 mSolverCounterSat, 52 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 432 SdHoareTripleChecker+Invalid, 537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 484 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-04-05 09:50:22,692 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [130 Valid, 432 Invalid, 537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 484 Invalid, 1 Unknown, 0 Unchecked, 6.0s Time] [2022-04-05 09:50:22,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1966 states. [2022-04-05 09:50:22,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1966 to 1725. [2022-04-05 09:50:22,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1725 states, 1720 states have (on average 1.4505813953488371) internal successors, (2495), 1720 states have internal predecessors, (2495), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:50:22,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1725 states to 1725 states and 2499 transitions. [2022-04-05 09:50:22,715 INFO L78 Accepts]: Start accepts. Automaton has 1725 states and 2499 transitions. Word has length 169 [2022-04-05 09:50:22,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:50:22,715 INFO L478 AbstractCegarLoop]: Abstraction has 1725 states and 2499 transitions. [2022-04-05 09:50:22,715 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.4) internal successors, (122), 4 states have internal predecessors, (122), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:50:22,715 INFO L276 IsEmpty]: Start isEmpty. Operand 1725 states and 2499 transitions. [2022-04-05 09:50:22,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2022-04-05 09:50:22,720 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:50:22,720 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:50:22,720 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-04-05 09:50:22,720 INFO L403 AbstractCegarLoop]: === Iteration 44 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:50:22,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:50:22,721 INFO L85 PathProgramCache]: Analyzing trace with hash -497117630, now seen corresponding path program 1 times [2022-04-05 09:50:22,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:50:22,721 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926059737] [2022-04-05 09:50:22,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:50:22,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:50:22,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:50:22,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:50:22,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:50:22,815 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 142 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-04-05 09:50:22,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:50:22,816 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [926059737] [2022-04-05 09:50:22,816 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [926059737] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:50:22,816 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:50:22,816 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:50:22,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985353620] [2022-04-05 09:50:22,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:50:22,816 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:50:22,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:50:22,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:50:22,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:50:22,817 INFO L87 Difference]: Start difference. First operand 1725 states and 2499 transitions. Second operand has 5 states, 5 states have (on average 24.6) internal successors, (123), 4 states have internal predecessors, (123), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:50:25,146 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:50:27,170 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:50:29,195 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:50:29,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:50:29,551 INFO L93 Difference]: Finished difference Result 3461 states and 5014 transitions. [2022-04-05 09:50:29,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:50:29,552 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.6) internal successors, (123), 4 states have internal predecessors, (123), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 170 [2022-04-05 09:50:29,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:50:29,554 INFO L225 Difference]: With dead ends: 3461 [2022-04-05 09:50:29,554 INFO L226 Difference]: Without dead ends: 1764 [2022-04-05 09:50:29,556 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:50:29,556 INFO L913 BasicCegarLoop]: 236 mSDtfsCounter, 35 mSDsluCounter, 373 mSDsCounter, 0 mSdLazyCounter, 475 mSolverCounterSat, 7 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 609 SdHoareTripleChecker+Invalid, 485 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 475 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2022-04-05 09:50:29,556 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [35 Valid, 609 Invalid, 485 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 475 Invalid, 3 Unknown, 0 Unchecked, 6.7s Time] [2022-04-05 09:50:29,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1764 states. [2022-04-05 09:50:29,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1764 to 1725. [2022-04-05 09:50:29,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1725 states, 1720 states have (on average 1.4488372093023256) internal successors, (2492), 1720 states have internal predecessors, (2492), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:50:29,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1725 states to 1725 states and 2496 transitions. [2022-04-05 09:50:29,577 INFO L78 Accepts]: Start accepts. Automaton has 1725 states and 2496 transitions. Word has length 170 [2022-04-05 09:50:29,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:50:29,578 INFO L478 AbstractCegarLoop]: Abstraction has 1725 states and 2496 transitions. [2022-04-05 09:50:29,578 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.6) internal successors, (123), 4 states have internal predecessors, (123), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:50:29,578 INFO L276 IsEmpty]: Start isEmpty. Operand 1725 states and 2496 transitions. [2022-04-05 09:50:29,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2022-04-05 09:50:29,580 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:50:29,580 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1] [2022-04-05 09:50:29,580 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-04-05 09:50:29,580 INFO L403 AbstractCegarLoop]: === Iteration 45 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:50:29,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:50:29,581 INFO L85 PathProgramCache]: Analyzing trace with hash -1610206959, now seen corresponding path program 1 times [2022-04-05 09:50:29,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:50:29,581 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126727428] [2022-04-05 09:50:29,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:50:29,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:50:29,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:50:29,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:50:29,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:50:29,927 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2022-04-05 09:50:29,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:50:29,927 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126727428] [2022-04-05 09:50:29,927 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2126727428] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:50:29,927 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:50:29,927 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-04-05 09:50:29,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301087050] [2022-04-05 09:50:29,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:50:29,928 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-04-05 09:50:29,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:50:29,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-04-05 09:50:29,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-04-05 09:50:29,928 INFO L87 Difference]: Start difference. First operand 1725 states and 2496 transitions. Second operand has 7 states, 6 states have (on average 13.666666666666666) internal successors, (82), 5 states have internal predecessors, (82), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:50:32,960 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:50:35,740 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:50:36,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:50:36,213 INFO L93 Difference]: Finished difference Result 3443 states and 4984 transitions. [2022-04-05 09:50:36,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-04-05 09:50:36,213 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 13.666666666666666) internal successors, (82), 5 states have internal predecessors, (82), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 180 [2022-04-05 09:50:36,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:50:36,216 INFO L225 Difference]: With dead ends: 3443 [2022-04-05 09:50:36,216 INFO L226 Difference]: Without dead ends: 1725 [2022-04-05 09:50:36,218 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-04-05 09:50:36,218 INFO L913 BasicCegarLoop]: 231 mSDtfsCounter, 7 mSDsluCounter, 720 mSDsCounter, 0 mSdLazyCounter, 466 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 951 SdHoareTripleChecker+Invalid, 471 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 466 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-04-05 09:50:36,218 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 951 Invalid, 471 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 466 Invalid, 1 Unknown, 0 Unchecked, 6.2s Time] [2022-04-05 09:50:36,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1725 states. [2022-04-05 09:50:36,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1725 to 1725. [2022-04-05 09:50:36,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1725 states, 1720 states have (on average 1.4482558139534885) internal successors, (2491), 1720 states have internal predecessors, (2491), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:50:36,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1725 states to 1725 states and 2495 transitions. [2022-04-05 09:50:36,255 INFO L78 Accepts]: Start accepts. Automaton has 1725 states and 2495 transitions. Word has length 180 [2022-04-05 09:50:36,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:50:36,255 INFO L478 AbstractCegarLoop]: Abstraction has 1725 states and 2495 transitions. [2022-04-05 09:50:36,255 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 13.666666666666666) internal successors, (82), 5 states have internal predecessors, (82), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:50:36,255 INFO L276 IsEmpty]: Start isEmpty. Operand 1725 states and 2495 transitions. [2022-04-05 09:50:36,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2022-04-05 09:50:36,257 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:50:36,257 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1] [2022-04-05 09:50:36,257 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-04-05 09:50:36,257 INFO L403 AbstractCegarLoop]: === Iteration 46 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:50:36,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:50:36,258 INFO L85 PathProgramCache]: Analyzing trace with hash -2025533776, now seen corresponding path program 1 times [2022-04-05 09:50:36,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:50:36,258 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400938146] [2022-04-05 09:50:36,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:50:36,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:50:36,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:50:37,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:50:37,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:50:37,086 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 14 proven. 146 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-04-05 09:50:37,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:50:37,086 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400938146] [2022-04-05 09:50:37,086 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [400938146] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-05 09:50:37,086 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [231696322] [2022-04-05 09:50:37,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:50:37,086 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-05 09:50:37,086 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-05 09:50:37,094 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-05 09:50:37,097 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-04-05 09:50:37,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:50:37,863 INFO L263 TraceCheckSpWp]: Trace formula consists of 1152 conjuncts, 152 conjunts are in the unsatisfiable core [2022-04-05 09:50:37,881 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-05 09:50:38,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 09:50:38,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 09:50:38,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 09:50:38,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 09:50:38,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 09:50:38,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 09:50:38,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 09:50:38,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 09:50:38,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 09:50:38,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 09:50:38,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 09:50:38,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 09:50:38,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 09:50:38,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 09:50:38,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 09:50:38,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 09:50:38,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 09:50:38,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 09:50:38,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 09:50:38,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 09:50:38,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 09:50:38,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 09:50:38,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 09:50:38,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 09:50:38,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 09:50:38,090 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 20 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5362 treesize of output 788