/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.14.i.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-34549b5 [2022-04-06 14:00:21,233 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-06 14:00:21,234 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-06 14:00:21,298 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-06 14:00:21,298 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-06 14:00:21,299 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-06 14:00:21,300 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-06 14:00:21,301 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-06 14:00:21,302 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-06 14:00:21,302 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-06 14:00:21,303 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-06 14:00:21,304 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-06 14:00:21,304 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-06 14:00:21,305 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-06 14:00:21,305 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-06 14:00:21,306 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-06 14:00:21,306 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-06 14:00:21,311 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-06 14:00:21,313 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-06 14:00:21,316 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-06 14:00:21,317 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-06 14:00:21,320 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-06 14:00:21,320 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-06 14:00:21,321 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-06 14:00:21,321 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-06 14:00:21,323 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-04-06 14:00:21,327 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-06 14:00:21,328 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-06 14:00:21,340 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-06 14:00:21,340 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/loopacceleration/qvasr/qvasr_64.epf [2022-04-06 14:00:21,355 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-06 14:00:21,355 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-06 14:00:21,356 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-04-06 14:00:21,356 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-04-06 14:00:21,356 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-04-06 14:00:21,356 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-04-06 14:00:21,356 INFO L138 SettingsManager]: * Use SBE=true [2022-04-06 14:00:21,357 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-06 14:00:21,357 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-06 14:00:21,357 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-06 14:00:21,357 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-06 14:00:21,357 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-06 14:00:21,357 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-06 14:00:21,357 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-06 14:00:21,357 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-06 14:00:21,357 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-06 14:00:21,358 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-06 14:00:21,358 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-06 14:00:21,358 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-06 14:00:21,358 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-06 14:00:21,358 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-06 14:00:21,358 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-04-06 14:00:21,358 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-04-06 14:00:21,358 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-04-06 14:00:21,358 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-04-06 14:00:21,358 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-06 14:00:21,358 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-04-06 14:00:21,359 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-04-06 14:00:21,359 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-04-06 14:00:21,359 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-04-06 14:00:21,512 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-06 14:00:21,529 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-06 14:00:21,533 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-06 14:00:21,533 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-06 14:00:21,534 INFO L275 PluginConnector]: CDTParser initialized [2022-04-06 14:00:21,535 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl/s3_srvr.blast.14.i.cil-2.c [2022-04-06 14:00:21,576 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/15026f457/40f746d0648a4becae4945707a3259b4/FLAGb1f269ae8 [2022-04-06 14:00:22,032 INFO L306 CDTParser]: Found 1 translation units. [2022-04-06 14:00:22,033 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.14.i.cil-2.c [2022-04-06 14:00:22,054 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/15026f457/40f746d0648a4becae4945707a3259b4/FLAGb1f269ae8 [2022-04-06 14:00:22,070 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/15026f457/40f746d0648a4becae4945707a3259b4 [2022-04-06 14:00:22,073 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-06 14:00:22,075 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-04-06 14:00:22,076 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-06 14:00:22,076 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-06 14:00:22,078 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-06 14:00:22,079 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.04 02:00:22" (1/1) ... [2022-04-06 14:00:22,096 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@504b3f94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 02:00:22, skipping insertion in model container [2022-04-06 14:00:22,097 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.04 02:00:22" (1/1) ... [2022-04-06 14:00:22,101 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-06 14:00:22,146 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-06 14:00:22,427 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.14.i.cil-2.c[76259,76272] [2022-04-06 14:00:22,436 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-06 14:00:22,443 INFO L203 MainTranslator]: Completed pre-run [2022-04-06 14:00:22,569 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.14.i.cil-2.c[76259,76272] [2022-04-06 14:00:22,571 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-06 14:00:22,588 INFO L208 MainTranslator]: Completed translation [2022-04-06 14:00:22,588 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 02:00:22 WrapperNode [2022-04-06 14:00:22,589 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-06 14:00:22,591 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-06 14:00:22,591 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-06 14:00:22,591 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-06 14:00:22,599 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 02:00:22" (1/1) ... [2022-04-06 14:00:22,599 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 02:00:22" (1/1) ... [2022-04-06 14:00:22,626 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 02:00:22" (1/1) ... [2022-04-06 14:00:22,627 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 02:00:22" (1/1) ... [2022-04-06 14:00:22,685 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 02:00:22" (1/1) ... [2022-04-06 14:00:22,694 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 02:00:22" (1/1) ... [2022-04-06 14:00:22,696 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 02:00:22" (1/1) ... [2022-04-06 14:00:22,700 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-06 14:00:22,700 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-06 14:00:22,701 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-06 14:00:22,701 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-06 14:00:22,701 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 02:00:22" (1/1) ... [2022-04-06 14:00:22,722 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-06 14:00:22,732 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-06 14:00:22,744 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-04-06 14:00:22,762 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-04-06 14:00:22,773 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-04-06 14:00:22,773 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-06 14:00:22,774 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-04-06 14:00:22,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_server_method [2022-04-06 14:00:22,774 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_server_method [2022-04-06 14:00:22,774 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-04-06 14:00:22,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-04-06 14:00:22,775 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-04-06 14:00:22,775 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-04-06 14:00:22,775 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-04-06 14:00:22,775 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-04-06 14:00:22,775 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-04-06 14:00:22,776 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-04-06 14:00:22,776 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-06 14:00:22,776 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-04-06 14:00:22,776 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-04-06 14:00:22,776 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-04-06 14:00:22,776 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-04-06 14:00:22,776 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-04-06 14:00:22,776 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-04-06 14:00:22,776 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_server_method [2022-04-06 14:00:22,776 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-04-06 14:00:22,776 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-04-06 14:00:22,777 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_server_method [2022-04-06 14:00:22,777 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-04-06 14:00:22,777 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-04-06 14:00:22,777 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-04-06 14:00:22,777 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-04-06 14:00:22,777 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-06 14:00:22,777 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-04-06 14:00:22,777 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-06 14:00:22,777 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-04-06 14:00:22,777 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-04-06 14:00:22,778 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-04-06 14:00:22,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-06 14:00:22,778 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-06 14:00:22,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-04-06 14:00:22,778 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-04-06 14:00:22,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-04-06 14:00:22,778 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-04-06 14:00:22,778 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-06 14:00:22,882 INFO L234 CfgBuilder]: Building ICFG [2022-04-06 14:00:22,883 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-06 14:00:23,770 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-04-06 14:00:24,120 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2022-04-06 14:00:24,120 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2022-04-06 14:00:24,129 INFO L275 CfgBuilder]: Performing block encoding [2022-04-06 14:00:24,134 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-06 14:00:24,134 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-04-06 14:00:24,136 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.04 02:00:24 BoogieIcfgContainer [2022-04-06 14:00:24,136 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-06 14:00:24,136 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-04-06 14:00:24,136 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-04-06 14:00:24,137 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-04-06 14:00:24,140 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.04 02:00:24" (1/1) ... [2022-04-06 14:00:24,141 INFO L168 ansformationObserver]: Applying ICFG transformation LOOP_ACCELERATION_QVASR [2022-04-06 14:00:24,197 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 06.04 02:00:24 BasicIcfg [2022-04-06 14:00:24,197 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-04-06 14:00:24,199 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-06 14:00:24,199 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-06 14:00:24,201 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-06 14:00:24,201 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.04 02:00:22" (1/4) ... [2022-04-06 14:00:24,202 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12a90dcd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.04 02:00:24, skipping insertion in model container [2022-04-06 14:00:24,202 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 02:00:22" (2/4) ... [2022-04-06 14:00:24,202 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12a90dcd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.04 02:00:24, skipping insertion in model container [2022-04-06 14:00:24,202 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.04 02:00:24" (3/4) ... [2022-04-06 14:00:24,203 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12a90dcd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.04 02:00:24, skipping insertion in model container [2022-04-06 14:00:24,203 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 06.04 02:00:24" (4/4) ... [2022-04-06 14:00:24,204 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr.blast.14.i.cil-2.cqvasr [2022-04-06 14:00:24,207 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-04-06 14:00:24,208 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-04-06 14:00:24,249 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-06 14:00:24,256 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 [2022-04-06 14:00:24,256 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-04-06 14:00:24,277 INFO L276 IsEmpty]: Start isEmpty. Operand has 163 states, 155 states have (on average 1.7161290322580645) internal successors, (266), 156 states have internal predecessors, (266), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-04-06 14:00:24,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-04-06 14:00:24,283 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 14:00:24,284 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 14:00:24,284 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 14:00:24,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 14:00:24,288 INFO L85 PathProgramCache]: Analyzing trace with hash -1842589219, now seen corresponding path program 1 times [2022-04-06 14:00:24,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 14:00:24,293 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84851295] [2022-04-06 14:00:24,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 14:00:24,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 14:00:24,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:00:24,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 14:00:24,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:00:24,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 14:00:24,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 14:00:24,745 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84851295] [2022-04-06 14:00:24,745 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [84851295] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 14:00:24,745 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 14:00:24,746 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 14:00:24,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834352078] [2022-04-06 14:00:24,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 14:00:24,751 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 14:00:24,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 14:00:24,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 14:00:24,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 14:00:24,774 INFO L87 Difference]: Start difference. First operand has 163 states, 155 states have (on average 1.7161290322580645) internal successors, (266), 156 states have internal predecessors, (266), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:00:26,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 14:00:26,540 INFO L93 Difference]: Finished difference Result 344 states and 580 transitions. [2022-04-06 14:00:26,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 14:00:26,543 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 49 [2022-04-06 14:00:26,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 14:00:26,549 INFO L225 Difference]: With dead ends: 344 [2022-04-06 14:00:26,549 INFO L226 Difference]: Without dead ends: 175 [2022-04-06 14:00:26,552 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 14:00:26,554 INFO L913 BasicCegarLoop]: 239 mSDtfsCounter, 34 mSDsluCounter, 398 mSDsCounter, 0 mSdLazyCounter, 425 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 637 SdHoareTripleChecker+Invalid, 436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 425 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-04-06 14:00:26,554 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 637 Invalid, 436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 425 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-04-06 14:00:26,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2022-04-06 14:00:26,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 158. [2022-04-06 14:00:26,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 153 states have (on average 1.5686274509803921) internal successors, (240), 153 states have internal predecessors, (240), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:00:26,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 244 transitions. [2022-04-06 14:00:26,584 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 244 transitions. Word has length 49 [2022-04-06 14:00:26,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 14:00:26,584 INFO L478 AbstractCegarLoop]: Abstraction has 158 states and 244 transitions. [2022-04-06 14:00:26,585 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:00:26,585 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 244 transitions. [2022-04-06 14:00:26,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-04-06 14:00:26,586 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 14:00:26,586 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 14:00:26,587 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-06 14:00:26,587 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 14:00:26,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 14:00:26,587 INFO L85 PathProgramCache]: Analyzing trace with hash -1221390176, now seen corresponding path program 1 times [2022-04-06 14:00:26,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 14:00:26,588 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531269635] [2022-04-06 14:00:26,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 14:00:26,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 14:00:26,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:00:26,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 14:00:26,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:00:26,696 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 14:00:26,696 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 14:00:26,696 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531269635] [2022-04-06 14:00:26,696 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [531269635] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 14:00:26,697 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 14:00:26,697 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 14:00:26,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546510338] [2022-04-06 14:00:26,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 14:00:26,698 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 14:00:26,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 14:00:26,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 14:00:26,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 14:00:26,698 INFO L87 Difference]: Start difference. First operand 158 states and 244 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:00:29,097 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:00:31,119 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:00:33,157 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:00:33,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 14:00:33,786 INFO L93 Difference]: Finished difference Result 413 states and 644 transitions. [2022-04-06 14:00:33,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 14:00:33,786 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 62 [2022-04-06 14:00:33,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 14:00:33,788 INFO L225 Difference]: With dead ends: 413 [2022-04-06 14:00:33,788 INFO L226 Difference]: Without dead ends: 281 [2022-04-06 14:00:33,789 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 14:00:33,790 INFO L913 BasicCegarLoop]: 281 mSDtfsCounter, 155 mSDsluCounter, 399 mSDsCounter, 0 mSdLazyCounter, 641 mSolverCounterSat, 46 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 680 SdHoareTripleChecker+Invalid, 690 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 641 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2022-04-06 14:00:33,790 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [155 Valid, 680 Invalid, 690 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 641 Invalid, 3 Unknown, 0 Unchecked, 7.0s Time] [2022-04-06 14:00:33,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2022-04-06 14:00:33,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 174. [2022-04-06 14:00:33,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 169 states have (on average 1.5680473372781065) internal successors, (265), 169 states have internal predecessors, (265), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:00:33,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 269 transitions. [2022-04-06 14:00:33,805 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 269 transitions. Word has length 62 [2022-04-06 14:00:33,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 14:00:33,805 INFO L478 AbstractCegarLoop]: Abstraction has 174 states and 269 transitions. [2022-04-06 14:00:33,805 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:00:33,806 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 269 transitions. [2022-04-06 14:00:33,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-04-06 14:00:33,813 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 14:00:33,813 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 14:00:33,813 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-06 14:00:33,814 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 14:00:33,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 14:00:33,819 INFO L85 PathProgramCache]: Analyzing trace with hash -1316073597, now seen corresponding path program 1 times [2022-04-06 14:00:33,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 14:00:33,819 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299590995] [2022-04-06 14:00:33,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 14:00:33,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 14:00:33,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:00:33,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 14:00:33,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:00:33,959 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 14:00:33,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 14:00:33,959 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299590995] [2022-04-06 14:00:33,959 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1299590995] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 14:00:33,959 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 14:00:33,960 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 14:00:33,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291096103] [2022-04-06 14:00:33,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 14:00:33,960 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 14:00:33,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 14:00:33,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 14:00:33,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 14:00:33,961 INFO L87 Difference]: Start difference. First operand 174 states and 269 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:00:35,082 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:00:37,099 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:00:39,481 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:00:39,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 14:00:39,872 INFO L93 Difference]: Finished difference Result 338 states and 521 transitions. [2022-04-06 14:00:39,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 14:00:39,872 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 63 [2022-04-06 14:00:39,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 14:00:39,874 INFO L225 Difference]: With dead ends: 338 [2022-04-06 14:00:39,874 INFO L226 Difference]: Without dead ends: 190 [2022-04-06 14:00:39,874 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 14:00:39,875 INFO L913 BasicCegarLoop]: 198 mSDtfsCounter, 28 mSDsluCounter, 317 mSDsCounter, 0 mSdLazyCounter, 370 mSolverCounterSat, 9 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 515 SdHoareTripleChecker+Invalid, 381 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 370 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-04-06 14:00:39,876 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 515 Invalid, 381 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 370 Invalid, 2 Unknown, 0 Unchecked, 5.9s Time] [2022-04-06 14:00:39,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2022-04-06 14:00:39,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 174. [2022-04-06 14:00:39,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 169 states have (on average 1.5621301775147929) internal successors, (264), 169 states have internal predecessors, (264), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:00:39,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 268 transitions. [2022-04-06 14:00:39,883 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 268 transitions. Word has length 63 [2022-04-06 14:00:39,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 14:00:39,883 INFO L478 AbstractCegarLoop]: Abstraction has 174 states and 268 transitions. [2022-04-06 14:00:39,884 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:00:39,884 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 268 transitions. [2022-04-06 14:00:39,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-04-06 14:00:39,884 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 14:00:39,885 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 14:00:39,885 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-04-06 14:00:39,885 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 14:00:39,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 14:00:39,885 INFO L85 PathProgramCache]: Analyzing trace with hash -528481437, now seen corresponding path program 1 times [2022-04-06 14:00:39,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 14:00:39,885 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219810514] [2022-04-06 14:00:39,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 14:00:39,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 14:00:39,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:00:39,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 14:00:39,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:00:39,976 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 14:00:39,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 14:00:39,976 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219810514] [2022-04-06 14:00:39,976 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1219810514] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 14:00:39,976 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 14:00:39,976 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 14:00:39,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897717481] [2022-04-06 14:00:39,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 14:00:39,977 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 14:00:39,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 14:00:39,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 14:00:39,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 14:00:39,977 INFO L87 Difference]: Start difference. First operand 174 states and 268 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:00:42,739 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 [] [2022-04-06 14:00:44,367 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:00:44,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 14:00:44,722 INFO L93 Difference]: Finished difference Result 338 states and 520 transitions. [2022-04-06 14:00:44,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 14:00:44,723 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 63 [2022-04-06 14:00:44,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 14:00:44,724 INFO L225 Difference]: With dead ends: 338 [2022-04-06 14:00:44,724 INFO L226 Difference]: Without dead ends: 190 [2022-04-06 14:00:44,725 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 14:00:44,725 INFO L913 BasicCegarLoop]: 198 mSDtfsCounter, 26 mSDsluCounter, 317 mSDsCounter, 0 mSdLazyCounter, 372 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 515 SdHoareTripleChecker+Invalid, 381 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 372 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-04-06 14:00:44,725 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [26 Valid, 515 Invalid, 381 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 372 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2022-04-06 14:00:44,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2022-04-06 14:00:44,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 174. [2022-04-06 14:00:44,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 169 states have (on average 1.5562130177514792) internal successors, (263), 169 states have internal predecessors, (263), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:00:44,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 267 transitions. [2022-04-06 14:00:44,743 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 267 transitions. Word has length 63 [2022-04-06 14:00:44,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 14:00:44,743 INFO L478 AbstractCegarLoop]: Abstraction has 174 states and 267 transitions. [2022-04-06 14:00:44,744 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:00:44,744 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 267 transitions. [2022-04-06 14:00:44,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-04-06 14:00:44,744 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 14:00:44,745 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 14:00:44,745 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-04-06 14:00:44,745 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 14:00:44,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 14:00:44,745 INFO L85 PathProgramCache]: Analyzing trace with hash 1238531875, now seen corresponding path program 1 times [2022-04-06 14:00:44,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 14:00:44,745 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422205528] [2022-04-06 14:00:44,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 14:00:44,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 14:00:44,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:00:44,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 14:00:44,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:00:44,864 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 14:00:44,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 14:00:44,865 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422205528] [2022-04-06 14:00:44,865 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [422205528] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 14:00:44,865 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 14:00:44,865 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 14:00:44,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144564201] [2022-04-06 14:00:44,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 14:00:44,866 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 14:00:44,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 14:00:44,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 14:00:44,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 14:00:44,867 INFO L87 Difference]: Start difference. First operand 174 states and 267 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:00:47,668 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:00:48,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 14:00:48,132 INFO L93 Difference]: Finished difference Result 445 states and 693 transitions. [2022-04-06 14:00:48,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 14:00:48,132 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 63 [2022-04-06 14:00:48,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 14:00:48,134 INFO L225 Difference]: With dead ends: 445 [2022-04-06 14:00:48,134 INFO L226 Difference]: Without dead ends: 297 [2022-04-06 14:00:48,134 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 14:00:48,135 INFO L913 BasicCegarLoop]: 127 mSDtfsCounter, 154 mSDsluCounter, 245 mSDsCounter, 0 mSdLazyCounter, 486 mSolverCounterSat, 64 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 372 SdHoareTripleChecker+Invalid, 551 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 486 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-04-06 14:00:48,135 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [154 Valid, 372 Invalid, 551 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 486 Invalid, 1 Unknown, 0 Unchecked, 3.2s Time] [2022-04-06 14:00:48,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 297 states. [2022-04-06 14:00:48,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 297 to 191. [2022-04-06 14:00:48,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 186 states have (on average 1.5591397849462365) internal successors, (290), 186 states have internal predecessors, (290), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:00:48,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 294 transitions. [2022-04-06 14:00:48,141 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 294 transitions. Word has length 63 [2022-04-06 14:00:48,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 14:00:48,142 INFO L478 AbstractCegarLoop]: Abstraction has 191 states and 294 transitions. [2022-04-06 14:00:48,142 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:00:48,142 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 294 transitions. [2022-04-06 14:00:48,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-04-06 14:00:48,142 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 14:00:48,143 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 14:00:48,143 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-04-06 14:00:48,143 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 14:00:48,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 14:00:48,143 INFO L85 PathProgramCache]: Analyzing trace with hash 780655619, now seen corresponding path program 1 times [2022-04-06 14:00:48,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 14:00:48,143 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419330830] [2022-04-06 14:00:48,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 14:00:48,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 14:00:48,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:00:48,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 14:00:48,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:00:48,275 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 14:00:48,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 14:00:48,275 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419330830] [2022-04-06 14:00:48,275 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1419330830] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 14:00:48,275 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 14:00:48,275 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 14:00:48,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665064029] [2022-04-06 14:00:48,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 14:00:48,276 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 14:00:48,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 14:00:48,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 14:00:48,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 14:00:48,277 INFO L87 Difference]: Start difference. First operand 191 states and 294 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:00:50,799 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:00:52,336 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:00:54,359 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:00:54,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 14:00:54,694 INFO L93 Difference]: Finished difference Result 369 states and 571 transitions. [2022-04-06 14:00:54,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 14:00:54,694 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 63 [2022-04-06 14:00:54,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 14:00:54,695 INFO L225 Difference]: With dead ends: 369 [2022-04-06 14:00:54,695 INFO L226 Difference]: Without dead ends: 204 [2022-04-06 14:00:54,696 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 14:00:54,696 INFO L913 BasicCegarLoop]: 201 mSDtfsCounter, 18 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 364 mSolverCounterSat, 8 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 521 SdHoareTripleChecker+Invalid, 374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 364 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2022-04-06 14:00:54,696 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 521 Invalid, 374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 364 Invalid, 2 Unknown, 0 Unchecked, 6.4s Time] [2022-04-06 14:00:54,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2022-04-06 14:00:54,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 191. [2022-04-06 14:00:54,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 186 states have (on average 1.553763440860215) internal successors, (289), 186 states have internal predecessors, (289), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:00:54,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 293 transitions. [2022-04-06 14:00:54,701 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 293 transitions. Word has length 63 [2022-04-06 14:00:54,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 14:00:54,701 INFO L478 AbstractCegarLoop]: Abstraction has 191 states and 293 transitions. [2022-04-06 14:00:54,701 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:00:54,701 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 293 transitions. [2022-04-06 14:00:54,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-04-06 14:00:54,702 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 14:00:54,702 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 14:00:54,702 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-04-06 14:00:54,702 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 14:00:54,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 14:00:54,703 INFO L85 PathProgramCache]: Analyzing trace with hash 881220224, now seen corresponding path program 1 times [2022-04-06 14:00:54,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 14:00:54,703 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420097315] [2022-04-06 14:00:54,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 14:00:54,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 14:00:54,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:00:54,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 14:00:54,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:00:54,823 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 14:00:54,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 14:00:54,823 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [420097315] [2022-04-06 14:00:54,823 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [420097315] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 14:00:54,823 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 14:00:54,823 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 14:00:54,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563588953] [2022-04-06 14:00:54,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 14:00:54,824 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 14:00:54,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 14:00:54,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 14:00:54,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 14:00:54,826 INFO L87 Difference]: Start difference. First operand 191 states and 293 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:00:57,606 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:00:59,246 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:01:00,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 14:01:00,503 INFO L93 Difference]: Finished difference Result 369 states and 570 transitions. [2022-04-06 14:01:00,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 14:01:00,508 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 64 [2022-04-06 14:01:00,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 14:01:00,509 INFO L225 Difference]: With dead ends: 369 [2022-04-06 14:01:00,509 INFO L226 Difference]: Without dead ends: 204 [2022-04-06 14:01:00,509 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 14:01:00,510 INFO L913 BasicCegarLoop]: 201 mSDtfsCounter, 22 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 365 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 521 SdHoareTripleChecker+Invalid, 374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 365 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-04-06 14:01:00,510 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 521 Invalid, 374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 365 Invalid, 1 Unknown, 0 Unchecked, 5.7s Time] [2022-04-06 14:01:00,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2022-04-06 14:01:00,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 191. [2022-04-06 14:01:00,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 186 states have (on average 1.5483870967741935) internal successors, (288), 186 states have internal predecessors, (288), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:01:00,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 292 transitions. [2022-04-06 14:01:00,515 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 292 transitions. Word has length 64 [2022-04-06 14:01:00,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 14:01:00,515 INFO L478 AbstractCegarLoop]: Abstraction has 191 states and 292 transitions. [2022-04-06 14:01:00,515 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:01:00,515 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 292 transitions. [2022-04-06 14:01:00,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-04-06 14:01:00,516 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 14:01:00,516 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 14:01:00,516 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-04-06 14:01:00,516 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 14:01:00,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 14:01:00,516 INFO L85 PathProgramCache]: Analyzing trace with hash 1193876863, now seen corresponding path program 1 times [2022-04-06 14:01:00,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 14:01:00,516 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [35681738] [2022-04-06 14:01:00,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 14:01:00,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 14:01:00,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:01:00,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 14:01:00,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:01:00,628 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 14:01:00,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 14:01:00,628 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [35681738] [2022-04-06 14:01:00,628 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [35681738] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 14:01:00,628 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 14:01:00,628 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 14:01:00,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525241710] [2022-04-06 14:01:00,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 14:01:00,629 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 14:01:00,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 14:01:00,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 14:01:00,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 14:01:00,629 INFO L87 Difference]: Start difference. First operand 191 states and 292 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:01:01,724 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:01:03,742 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:01:05,612 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:01:07,642 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:01:08,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 14:01:08,140 INFO L93 Difference]: Finished difference Result 462 states and 717 transitions. [2022-04-06 14:01:08,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 14:01:08,141 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 65 [2022-04-06 14:01:08,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 14:01:08,142 INFO L225 Difference]: With dead ends: 462 [2022-04-06 14:01:08,142 INFO L226 Difference]: Without dead ends: 297 [2022-04-06 14:01:08,142 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 14:01:08,143 INFO L913 BasicCegarLoop]: 127 mSDtfsCounter, 156 mSDsluCounter, 245 mSDsCounter, 0 mSdLazyCounter, 485 mSolverCounterSat, 64 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 372 SdHoareTripleChecker+Invalid, 551 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 485 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2022-04-06 14:01:08,143 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [156 Valid, 372 Invalid, 551 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 485 Invalid, 2 Unknown, 0 Unchecked, 7.5s Time] [2022-04-06 14:01:08,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 297 states. [2022-04-06 14:01:08,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 297 to 191. [2022-04-06 14:01:08,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 186 states have (on average 1.532258064516129) internal successors, (285), 186 states have internal predecessors, (285), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:01:08,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 289 transitions. [2022-04-06 14:01:08,148 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 289 transitions. Word has length 65 [2022-04-06 14:01:08,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 14:01:08,148 INFO L478 AbstractCegarLoop]: Abstraction has 191 states and 289 transitions. [2022-04-06 14:01:08,148 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:01:08,148 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 289 transitions. [2022-04-06 14:01:08,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-04-06 14:01:08,149 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 14:01:08,149 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 14:01:08,149 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-04-06 14:01:08,149 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 14:01:08,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 14:01:08,149 INFO L85 PathProgramCache]: Analyzing trace with hash -1253743811, now seen corresponding path program 1 times [2022-04-06 14:01:08,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 14:01:08,149 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [864222283] [2022-04-06 14:01:08,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 14:01:08,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 14:01:08,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:01:08,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 14:01:08,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:01:08,229 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 14:01:08,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 14:01:08,229 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [864222283] [2022-04-06 14:01:08,229 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [864222283] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 14:01:08,229 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 14:01:08,229 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 14:01:08,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583341595] [2022-04-06 14:01:08,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 14:01:08,229 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 14:01:08,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 14:01:08,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 14:01:08,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 14:01:08,230 INFO L87 Difference]: Start difference. First operand 191 states and 289 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:01:10,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 14:01:10,486 INFO L93 Difference]: Finished difference Result 359 states and 551 transitions. [2022-04-06 14:01:10,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 14:01:10,487 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 66 [2022-04-06 14:01:10,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 14:01:10,488 INFO L225 Difference]: With dead ends: 359 [2022-04-06 14:01:10,488 INFO L226 Difference]: Without dead ends: 194 [2022-04-06 14:01:10,488 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 14:01:10,488 INFO L913 BasicCegarLoop]: 208 mSDtfsCounter, 11 mSDsluCounter, 327 mSDsCounter, 0 mSdLazyCounter, 352 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 535 SdHoareTripleChecker+Invalid, 356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-04-06 14:01:10,489 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 535 Invalid, 356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 352 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-04-06 14:01:10,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2022-04-06 14:01:10,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 191. [2022-04-06 14:01:10,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 186 states have (on average 1.5268817204301075) internal successors, (284), 186 states have internal predecessors, (284), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:01:10,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 288 transitions. [2022-04-06 14:01:10,493 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 288 transitions. Word has length 66 [2022-04-06 14:01:10,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 14:01:10,493 INFO L478 AbstractCegarLoop]: Abstraction has 191 states and 288 transitions. [2022-04-06 14:01:10,493 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:01:10,494 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 288 transitions. [2022-04-06 14:01:10,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-04-06 14:01:10,494 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 14:01:10,494 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 14:01:10,494 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-04-06 14:01:10,494 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 14:01:10,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 14:01:10,495 INFO L85 PathProgramCache]: Analyzing trace with hash -1541885266, now seen corresponding path program 1 times [2022-04-06 14:01:10,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 14:01:10,495 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188803678] [2022-04-06 14:01:10,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 14:01:10,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 14:01:10,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:01:10,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 14:01:10,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:01:10,595 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 14:01:10,596 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 14:01:10,596 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188803678] [2022-04-06 14:01:10,596 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1188803678] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 14:01:10,596 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 14:01:10,596 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 14:01:10,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988461304] [2022-04-06 14:01:10,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 14:01:10,596 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 14:01:10,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 14:01:10,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 14:01:10,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 14:01:10,597 INFO L87 Difference]: Start difference. First operand 191 states and 288 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:01:12,363 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:01:14,352 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:01:16,367 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:01:16,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 14:01:16,820 INFO L93 Difference]: Finished difference Result 480 states and 738 transitions. [2022-04-06 14:01:16,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 14:01:16,820 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 66 [2022-04-06 14:01:16,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 14:01:16,822 INFO L225 Difference]: With dead ends: 480 [2022-04-06 14:01:16,822 INFO L226 Difference]: Without dead ends: 315 [2022-04-06 14:01:16,822 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 14:01:16,823 INFO L913 BasicCegarLoop]: 128 mSDtfsCounter, 131 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 490 mSolverCounterSat, 61 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 374 SdHoareTripleChecker+Invalid, 552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 490 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-04-06 14:01:16,823 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [131 Valid, 374 Invalid, 552 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 490 Invalid, 1 Unknown, 0 Unchecked, 6.2s Time] [2022-04-06 14:01:16,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2022-04-06 14:01:16,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 231. [2022-04-06 14:01:16,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 226 states have (on average 1.5663716814159292) internal successors, (354), 226 states have internal predecessors, (354), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:01:16,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 358 transitions. [2022-04-06 14:01:16,828 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 358 transitions. Word has length 66 [2022-04-06 14:01:16,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 14:01:16,828 INFO L478 AbstractCegarLoop]: Abstraction has 231 states and 358 transitions. [2022-04-06 14:01:16,828 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:01:16,829 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 358 transitions. [2022-04-06 14:01:16,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-04-06 14:01:16,829 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 14:01:16,829 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 14:01:16,829 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-04-06 14:01:16,829 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 14:01:16,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 14:01:16,830 INFO L85 PathProgramCache]: Analyzing trace with hash -524374476, now seen corresponding path program 1 times [2022-04-06 14:01:16,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 14:01:16,830 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1268725427] [2022-04-06 14:01:16,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 14:01:16,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 14:01:16,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:01:16,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 14:01:16,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:01:16,953 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 14:01:16,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 14:01:16,954 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1268725427] [2022-04-06 14:01:16,954 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1268725427] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 14:01:16,954 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 14:01:16,954 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 14:01:16,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652464737] [2022-04-06 14:01:16,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 14:01:16,954 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 14:01:16,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 14:01:16,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 14:01:16,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 14:01:16,955 INFO L87 Difference]: Start difference. First operand 231 states and 358 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:01:19,930 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:01:21,957 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:01:23,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 14:01:23,161 INFO L93 Difference]: Finished difference Result 542 states and 851 transitions. [2022-04-06 14:01:23,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 14:01:23,162 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 67 [2022-04-06 14:01:23,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 14:01:23,163 INFO L225 Difference]: With dead ends: 542 [2022-04-06 14:01:23,163 INFO L226 Difference]: Without dead ends: 337 [2022-04-06 14:01:23,163 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 14:01:23,164 INFO L913 BasicCegarLoop]: 137 mSDtfsCounter, 130 mSDsluCounter, 255 mSDsCounter, 0 mSdLazyCounter, 495 mSolverCounterSat, 62 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 392 SdHoareTripleChecker+Invalid, 559 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 495 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-04-06 14:01:23,164 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [130 Valid, 392 Invalid, 559 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 495 Invalid, 2 Unknown, 0 Unchecked, 6.2s Time] [2022-04-06 14:01:23,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2022-04-06 14:01:23,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 254. [2022-04-06 14:01:23,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 254 states, 249 states have (on average 1.6024096385542168) internal successors, (399), 249 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) [2022-04-06 14:01:23,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 403 transitions. [2022-04-06 14:01:23,170 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 403 transitions. Word has length 67 [2022-04-06 14:01:23,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 14:01:23,171 INFO L478 AbstractCegarLoop]: Abstraction has 254 states and 403 transitions. [2022-04-06 14:01:23,171 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:01:23,171 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 403 transitions. [2022-04-06 14:01:23,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-04-06 14:01:23,172 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 14:01:23,172 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 14:01:23,172 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-04-06 14:01:23,172 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 14:01:23,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 14:01:23,172 INFO L85 PathProgramCache]: Analyzing trace with hash -268597879, now seen corresponding path program 1 times [2022-04-06 14:01:23,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 14:01:23,172 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146031524] [2022-04-06 14:01:23,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 14:01:23,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 14:01:23,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:01:23,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 14:01:23,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:01:23,272 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-04-06 14:01:23,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 14:01:23,272 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1146031524] [2022-04-06 14:01:23,272 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1146031524] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 14:01:23,272 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 14:01:23,272 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 14:01:23,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909721518] [2022-04-06 14:01:23,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 14:01:23,273 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 14:01:23,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 14:01:23,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 14:01:23,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 14:01:23,273 INFO L87 Difference]: Start difference. First operand 254 states and 403 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:01:25,440 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:01:27,392 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:01:27,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 14:01:27,731 INFO L93 Difference]: Finished difference Result 523 states and 837 transitions. [2022-04-06 14:01:27,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 14:01:27,732 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 95 [2022-04-06 14:01:27,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 14:01:27,733 INFO L225 Difference]: With dead ends: 523 [2022-04-06 14:01:27,733 INFO L226 Difference]: Without dead ends: 295 [2022-04-06 14:01:27,734 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 14:01:27,734 INFO L913 BasicCegarLoop]: 206 mSDtfsCounter, 31 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 404 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 537 SdHoareTripleChecker+Invalid, 414 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 404 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-04-06 14:01:27,734 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [31 Valid, 537 Invalid, 414 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 404 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2022-04-06 14:01:27,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2022-04-06 14:01:27,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 276. [2022-04-06 14:01:27,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 276 states, 271 states have (on average 1.6014760147601477) internal successors, (434), 271 states have internal predecessors, (434), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:01:27,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 438 transitions. [2022-04-06 14:01:27,739 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 438 transitions. Word has length 95 [2022-04-06 14:01:27,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 14:01:27,739 INFO L478 AbstractCegarLoop]: Abstraction has 276 states and 438 transitions. [2022-04-06 14:01:27,740 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:01:27,740 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 438 transitions. [2022-04-06 14:01:27,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-04-06 14:01:27,740 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 14:01:27,740 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 14:01:27,741 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-04-06 14:01:27,741 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 14:01:27,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 14:01:27,741 INFO L85 PathProgramCache]: Analyzing trace with hash 2013387619, now seen corresponding path program 1 times [2022-04-06 14:01:27,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 14:01:27,741 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [320477470] [2022-04-06 14:01:27,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 14:01:27,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 14:01:27,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:01:27,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 14:01:27,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:01:27,839 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-04-06 14:01:27,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 14:01:27,839 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [320477470] [2022-04-06 14:01:27,839 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [320477470] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 14:01:27,839 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 14:01:27,839 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 14:01:27,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487810312] [2022-04-06 14:01:27,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 14:01:27,840 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 14:01:27,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 14:01:27,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 14:01:27,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 14:01:27,840 INFO L87 Difference]: Start difference. First operand 276 states and 438 transitions. Second operand has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:01:29,763 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:01:31,791 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:01:33,622 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:01:35,221 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:01:35,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 14:01:35,641 INFO L93 Difference]: Finished difference Result 539 states and 862 transitions. [2022-04-06 14:01:35,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 14:01:35,642 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 109 [2022-04-06 14:01:35,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 14:01:35,643 INFO L225 Difference]: With dead ends: 539 [2022-04-06 14:01:35,643 INFO L226 Difference]: Without dead ends: 289 [2022-04-06 14:01:35,644 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 14:01:35,644 INFO L913 BasicCegarLoop]: 239 mSDtfsCounter, 21 mSDsluCounter, 363 mSDsCounter, 0 mSdLazyCounter, 407 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 602 SdHoareTripleChecker+Invalid, 418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 407 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2022-04-06 14:01:35,644 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [21 Valid, 602 Invalid, 418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 407 Invalid, 1 Unknown, 0 Unchecked, 7.8s Time] [2022-04-06 14:01:35,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289 states. [2022-04-06 14:01:35,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 276. [2022-04-06 14:01:35,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 276 states, 271 states have (on average 1.5977859778597785) internal successors, (433), 271 states have internal predecessors, (433), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:01:35,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 437 transitions. [2022-04-06 14:01:35,650 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 437 transitions. Word has length 109 [2022-04-06 14:01:35,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 14:01:35,650 INFO L478 AbstractCegarLoop]: Abstraction has 276 states and 437 transitions. [2022-04-06 14:01:35,650 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:01:35,650 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 437 transitions. [2022-04-06 14:01:35,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-04-06 14:01:35,651 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 14:01:35,651 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 14:01:35,651 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-04-06 14:01:35,651 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 14:01:35,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 14:01:35,651 INFO L85 PathProgramCache]: Analyzing trace with hash 769236707, now seen corresponding path program 1 times [2022-04-06 14:01:35,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 14:01:35,651 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516058954] [2022-04-06 14:01:35,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 14:01:35,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 14:01:35,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:01:35,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 14:01:35,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:01:35,753 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-04-06 14:01:35,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 14:01:35,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1516058954] [2022-04-06 14:01:35,753 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1516058954] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 14:01:35,753 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 14:01:35,753 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 14:01:35,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665152510] [2022-04-06 14:01:35,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 14:01:35,753 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 14:01:35,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 14:01:35,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 14:01:35,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 14:01:35,754 INFO L87 Difference]: Start difference. First operand 276 states and 437 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:01:37,762 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:01:38,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 14:01:38,110 INFO L93 Difference]: Finished difference Result 544 states and 868 transitions. [2022-04-06 14:01:38,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 14:01:38,110 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 109 [2022-04-06 14:01:38,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 14:01:38,112 INFO L225 Difference]: With dead ends: 544 [2022-04-06 14:01:38,112 INFO L226 Difference]: Without dead ends: 294 [2022-04-06 14:01:38,112 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 14:01:38,112 INFO L913 BasicCegarLoop]: 208 mSDtfsCounter, 34 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 397 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 539 SdHoareTripleChecker+Invalid, 408 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 397 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-04-06 14:01:38,113 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 539 Invalid, 408 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 397 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-04-06 14:01:38,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2022-04-06 14:01:38,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 276. [2022-04-06 14:01:38,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 276 states, 271 states have (on average 1.5940959409594095) internal successors, (432), 271 states have internal predecessors, (432), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:01:38,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 436 transitions. [2022-04-06 14:01:38,117 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 436 transitions. Word has length 109 [2022-04-06 14:01:38,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 14:01:38,118 INFO L478 AbstractCegarLoop]: Abstraction has 276 states and 436 transitions. [2022-04-06 14:01:38,118 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:01:38,118 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 436 transitions. [2022-04-06 14:01:38,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-04-06 14:01:38,118 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 14:01:38,119 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 14:01:38,119 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-04-06 14:01:38,119 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 14:01:38,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 14:01:38,119 INFO L85 PathProgramCache]: Analyzing trace with hash 621269315, now seen corresponding path program 1 times [2022-04-06 14:01:38,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 14:01:38,119 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105253320] [2022-04-06 14:01:38,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 14:01:38,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 14:01:38,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:01:38,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 14:01:38,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:01:38,222 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-04-06 14:01:38,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 14:01:38,223 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1105253320] [2022-04-06 14:01:38,223 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1105253320] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 14:01:38,223 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 14:01:38,223 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-06 14:01:38,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903041767] [2022-04-06 14:01:38,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 14:01:38,223 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-06 14:01:38,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 14:01:38,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-06 14:01:38,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-04-06 14:01:38,224 INFO L87 Difference]: Start difference. First operand 276 states and 436 transitions. Second operand has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 5 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:01:40,233 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:01:40,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 14:01:40,607 INFO L93 Difference]: Finished difference Result 535 states and 854 transitions. [2022-04-06 14:01:40,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-06 14:01:40,608 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 5 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 110 [2022-04-06 14:01:40,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 14:01:40,612 INFO L225 Difference]: With dead ends: 535 [2022-04-06 14:01:40,612 INFO L226 Difference]: Without dead ends: 285 [2022-04-06 14:01:40,613 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 [2022-04-06 14:01:40,613 INFO L913 BasicCegarLoop]: 213 mSDtfsCounter, 3 mSDsluCounter, 460 mSDsCounter, 0 mSdLazyCounter, 441 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 673 SdHoareTripleChecker+Invalid, 446 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 441 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-06 14:01:40,613 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 673 Invalid, 446 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 441 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-04-06 14:01:40,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2022-04-06 14:01:40,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 285. [2022-04-06 14:01:40,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 280 states have (on average 1.582142857142857) internal successors, (443), 280 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) [2022-04-06 14:01:40,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 447 transitions. [2022-04-06 14:01:40,618 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 447 transitions. Word has length 110 [2022-04-06 14:01:40,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 14:01:40,618 INFO L478 AbstractCegarLoop]: Abstraction has 285 states and 447 transitions. [2022-04-06 14:01:40,618 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 5 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:01:40,618 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 447 transitions. [2022-04-06 14:01:40,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-04-06 14:01:40,619 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 14:01:40,619 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 14:01:40,619 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-04-06 14:01:40,619 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 14:01:40,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 14:01:40,619 INFO L85 PathProgramCache]: Analyzing trace with hash 1743617315, now seen corresponding path program 1 times [2022-04-06 14:01:40,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 14:01:40,619 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [717839042] [2022-04-06 14:01:40,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 14:01:40,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 14:01:40,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:01:40,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 14:01:40,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:01:40,705 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-04-06 14:01:40,705 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 14:01:40,705 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [717839042] [2022-04-06 14:01:40,705 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [717839042] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 14:01:40,705 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 14:01:40,705 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 14:01:40,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518288541] [2022-04-06 14:01:40,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 14:01:40,706 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 14:01:40,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 14:01:40,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 14:01:40,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 14:01:40,706 INFO L87 Difference]: Start difference. First operand 285 states and 447 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) [2022-04-06 14:01:41,890 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:01:43,076 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:01:44,273 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:01:46,290 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:01:46,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 14:01:46,636 INFO L93 Difference]: Finished difference Result 571 states and 899 transitions. [2022-04-06 14:01:46,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 14:01:46,636 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 110 [2022-04-06 14:01:46,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 14:01:46,637 INFO L225 Difference]: With dead ends: 571 [2022-04-06 14:01:46,637 INFO L226 Difference]: Without dead ends: 312 [2022-04-06 14:01:46,638 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 14:01:46,638 INFO L913 BasicCegarLoop]: 208 mSDtfsCounter, 39 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 400 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 539 SdHoareTripleChecker+Invalid, 411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 400 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-04-06 14:01:46,638 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [39 Valid, 539 Invalid, 411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 400 Invalid, 1 Unknown, 0 Unchecked, 5.9s Time] [2022-04-06 14:01:46,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2022-04-06 14:01:46,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 285. [2022-04-06 14:01:46,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 280 states have (on average 1.5785714285714285) internal successors, (442), 280 states have internal predecessors, (442), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:01:46,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 446 transitions. [2022-04-06 14:01:46,644 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 446 transitions. Word has length 110 [2022-04-06 14:01:46,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 14:01:46,644 INFO L478 AbstractCegarLoop]: Abstraction has 285 states and 446 transitions. [2022-04-06 14:01:46,644 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) [2022-04-06 14:01:46,644 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 446 transitions. [2022-04-06 14:01:46,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-04-06 14:01:46,645 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 14:01:46,645 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 14:01:46,645 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-04-06 14:01:46,645 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 14:01:46,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 14:01:46,645 INFO L85 PathProgramCache]: Analyzing trace with hash -552642818, now seen corresponding path program 1 times [2022-04-06 14:01:46,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 14:01:46,645 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441636948] [2022-04-06 14:01:46,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 14:01:46,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 14:01:46,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:01:46,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 14:01:46,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:01:46,726 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-04-06 14:01:46,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 14:01:46,726 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441636948] [2022-04-06 14:01:46,726 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [441636948] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 14:01:46,726 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 14:01:46,726 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 14:01:46,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319791042] [2022-04-06 14:01:46,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 14:01:46,727 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 14:01:46,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 14:01:46,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 14:01:46,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 14:01:46,727 INFO L87 Difference]: Start difference. First operand 285 states and 446 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:01:48,559 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:01:50,949 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:01:51,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 14:01:51,374 INFO L93 Difference]: Finished difference Result 636 states and 992 transitions. [2022-04-06 14:01:51,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 14:01:51,374 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 111 [2022-04-06 14:01:51,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 14:01:51,375 INFO L225 Difference]: With dead ends: 636 [2022-04-06 14:01:51,375 INFO L226 Difference]: Without dead ends: 377 [2022-04-06 14:01:51,376 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 14:01:51,376 INFO L913 BasicCegarLoop]: 137 mSDtfsCounter, 156 mSDsluCounter, 255 mSDsCounter, 0 mSdLazyCounter, 496 mSolverCounterSat, 62 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 392 SdHoareTripleChecker+Invalid, 559 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 496 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-04-06 14:01:51,376 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [156 Valid, 392 Invalid, 559 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 496 Invalid, 1 Unknown, 0 Unchecked, 4.6s Time] [2022-04-06 14:01:51,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2022-04-06 14:01:51,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 285. [2022-04-06 14:01:51,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 280 states have (on average 1.5642857142857143) internal successors, (438), 280 states have internal predecessors, (438), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:01:51,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 442 transitions. [2022-04-06 14:01:51,381 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 442 transitions. Word has length 111 [2022-04-06 14:01:51,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 14:01:51,382 INFO L478 AbstractCegarLoop]: Abstraction has 285 states and 442 transitions. [2022-04-06 14:01:51,382 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:01:51,382 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 442 transitions. [2022-04-06 14:01:51,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-04-06 14:01:51,382 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 14:01:51,383 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 14:01:51,383 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-04-06 14:01:51,383 INFO L403 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 14:01:51,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 14:01:51,383 INFO L85 PathProgramCache]: Analyzing trace with hash 1410842427, now seen corresponding path program 1 times [2022-04-06 14:01:51,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 14:01:51,383 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415612392] [2022-04-06 14:01:51,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 14:01:51,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 14:01:51,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:01:51,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 14:01:51,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:01:51,476 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-04-06 14:01:51,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 14:01:51,477 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415612392] [2022-04-06 14:01:51,477 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [415612392] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 14:01:51,477 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 14:01:51,477 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 14:01:51,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139407555] [2022-04-06 14:01:51,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 14:01:51,478 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 14:01:51,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 14:01:51,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 14:01:51,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 14:01:51,480 INFO L87 Difference]: Start difference. First operand 285 states and 442 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:01:52,744 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:01:54,764 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:01:56,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 14:01:56,209 INFO L93 Difference]: Finished difference Result 561 states and 876 transitions. [2022-04-06 14:01:56,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 14:01:56,209 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 113 [2022-04-06 14:01:56,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 14:01:56,214 INFO L225 Difference]: With dead ends: 561 [2022-04-06 14:01:56,214 INFO L226 Difference]: Without dead ends: 302 [2022-04-06 14:01:56,215 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 14:01:56,215 INFO L913 BasicCegarLoop]: 209 mSDtfsCounter, 33 mSDsluCounter, 332 mSDsCounter, 0 mSdLazyCounter, 398 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 541 SdHoareTripleChecker+Invalid, 409 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 398 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-04-06 14:01:56,215 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 541 Invalid, 409 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 398 Invalid, 1 Unknown, 0 Unchecked, 4.7s Time] [2022-04-06 14:01:56,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2022-04-06 14:01:56,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 285. [2022-04-06 14:01:56,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 280 states have (on average 1.5607142857142857) internal successors, (437), 280 states have internal predecessors, (437), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:01:56,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 441 transitions. [2022-04-06 14:01:56,220 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 441 transitions. Word has length 113 [2022-04-06 14:01:56,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 14:01:56,220 INFO L478 AbstractCegarLoop]: Abstraction has 285 states and 441 transitions. [2022-04-06 14:01:56,220 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:01:56,220 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 441 transitions. [2022-04-06 14:01:56,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-04-06 14:01:56,221 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 14:01:56,221 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 14:01:56,221 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-04-06 14:01:56,221 INFO L403 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 14:01:56,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 14:01:56,222 INFO L85 PathProgramCache]: Analyzing trace with hash -1137654742, now seen corresponding path program 1 times [2022-04-06 14:01:56,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 14:01:56,222 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241309041] [2022-04-06 14:01:56,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 14:01:56,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 14:01:56,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:01:56,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 14:01:56,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:01:56,312 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-04-06 14:01:56,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 14:01:56,312 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241309041] [2022-04-06 14:01:56,312 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [241309041] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 14:01:56,313 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 14:01:56,313 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 14:01:56,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212580618] [2022-04-06 14:01:56,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 14:01:56,314 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 14:01:56,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 14:01:56,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 14:01:56,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 14:01:56,314 INFO L87 Difference]: Start difference. First operand 285 states and 441 transitions. Second operand has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:01:58,321 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:01:58,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 14:01:58,735 INFO L93 Difference]: Finished difference Result 652 states and 1015 transitions. [2022-04-06 14:01:58,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 14:01:58,736 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 117 [2022-04-06 14:01:58,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 14:01:58,737 INFO L225 Difference]: With dead ends: 652 [2022-04-06 14:01:58,737 INFO L226 Difference]: Without dead ends: 393 [2022-04-06 14:01:58,737 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 14:01:58,738 INFO L913 BasicCegarLoop]: 205 mSDtfsCounter, 96 mSDsluCounter, 330 mSDsCounter, 0 mSdLazyCounter, 534 mSolverCounterSat, 12 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 535 SdHoareTripleChecker+Invalid, 547 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 534 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-06 14:01:58,738 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [96 Valid, 535 Invalid, 547 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 534 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-04-06 14:01:58,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2022-04-06 14:01:58,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 319. [2022-04-06 14:01:58,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 319 states, 314 states have (on average 1.570063694267516) internal successors, (493), 314 states have internal predecessors, (493), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:01:58,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 497 transitions. [2022-04-06 14:01:58,743 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 497 transitions. Word has length 117 [2022-04-06 14:01:58,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 14:01:58,743 INFO L478 AbstractCegarLoop]: Abstraction has 319 states and 497 transitions. [2022-04-06 14:01:58,743 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:01:58,743 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 497 transitions. [2022-04-06 14:01:58,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-04-06 14:01:58,744 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 14:01:58,744 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 14:01:58,744 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-04-06 14:01:58,744 INFO L403 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 14:01:58,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 14:01:58,744 INFO L85 PathProgramCache]: Analyzing trace with hash -1383967829, now seen corresponding path program 1 times [2022-04-06 14:01:58,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 14:01:58,744 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600296535] [2022-04-06 14:01:58,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 14:01:58,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 14:01:58,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:01:58,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 14:01:58,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:01:58,848 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-04-06 14:01:58,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 14:01:58,848 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600296535] [2022-04-06 14:01:58,849 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [600296535] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 14:01:58,849 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 14:01:58,849 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 14:01:58,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50054481] [2022-04-06 14:01:58,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 14:01:58,849 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 14:01:58,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 14:01:58,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 14:01:58,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 14:01:58,849 INFO L87 Difference]: Start difference. First operand 319 states and 497 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) [2022-04-06 14:02:01,540 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 [] [2022-04-06 14:02:02,856 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:02:03,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 14:02:03,222 INFO L93 Difference]: Finished difference Result 669 states and 1046 transitions. [2022-04-06 14:02:03,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 14:02:03,223 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 117 [2022-04-06 14:02:03,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 14:02:03,224 INFO L225 Difference]: With dead ends: 669 [2022-04-06 14:02:03,224 INFO L226 Difference]: Without dead ends: 376 [2022-04-06 14:02:03,225 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 14:02:03,225 INFO L913 BasicCegarLoop]: 257 mSDtfsCounter, 38 mSDsluCounter, 380 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 637 SdHoareTripleChecker+Invalid, 487 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-04-06 14:02:03,225 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 637 Invalid, 487 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 477 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2022-04-06 14:02:03,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 376 states. [2022-04-06 14:02:03,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 376 to 343. [2022-04-06 14:02:03,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 343 states, 338 states have (on average 1.5710059171597632) internal successors, (531), 338 states have internal predecessors, (531), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:02:03,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 535 transitions. [2022-04-06 14:02:03,232 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 535 transitions. Word has length 117 [2022-04-06 14:02:03,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 14:02:03,232 INFO L478 AbstractCegarLoop]: Abstraction has 343 states and 535 transitions. [2022-04-06 14:02:03,232 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) [2022-04-06 14:02:03,232 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 535 transitions. [2022-04-06 14:02:03,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-04-06 14:02:03,233 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 14:02:03,233 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 14:02:03,233 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-04-06 14:02:03,233 INFO L403 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 14:02:03,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 14:02:03,233 INFO L85 PathProgramCache]: Analyzing trace with hash -1058943794, now seen corresponding path program 1 times [2022-04-06 14:02:03,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 14:02:03,234 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1156650658] [2022-04-06 14:02:03,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 14:02:03,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 14:02:03,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:02:03,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 14:02:03,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:02:03,319 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2022-04-06 14:02:03,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 14:02:03,319 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1156650658] [2022-04-06 14:02:03,319 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1156650658] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 14:02:03,319 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 14:02:03,319 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 14:02:03,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351616479] [2022-04-06 14:02:03,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 14:02:03,320 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 14:02:03,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 14:02:03,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 14:02:03,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 14:02:03,320 INFO L87 Difference]: Start difference. First operand 343 states and 535 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:02:05,013 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:02:06,567 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:02:06,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 14:02:06,969 INFO L93 Difference]: Finished difference Result 742 states and 1158 transitions. [2022-04-06 14:02:06,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 14:02:06,969 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 122 [2022-04-06 14:02:06,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 14:02:06,970 INFO L225 Difference]: With dead ends: 742 [2022-04-06 14:02:06,970 INFO L226 Difference]: Without dead ends: 425 [2022-04-06 14:02:06,971 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 14:02:06,971 INFO L913 BasicCegarLoop]: 128 mSDtfsCounter, 157 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 485 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 374 SdHoareTripleChecker+Invalid, 548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 485 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-04-06 14:02:06,971 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [157 Valid, 374 Invalid, 548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 485 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-04-06 14:02:06,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 425 states. [2022-04-06 14:02:06,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 425 to 343. [2022-04-06 14:02:06,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 343 states, 338 states have (on average 1.5532544378698225) internal successors, (525), 338 states have internal predecessors, (525), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:02:06,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 529 transitions. [2022-04-06 14:02:06,977 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 529 transitions. Word has length 122 [2022-04-06 14:02:06,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 14:02:06,977 INFO L478 AbstractCegarLoop]: Abstraction has 343 states and 529 transitions. [2022-04-06 14:02:06,977 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:02:06,977 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 529 transitions. [2022-04-06 14:02:06,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-04-06 14:02:06,978 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 14:02:06,978 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 14:02:06,978 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-04-06 14:02:06,978 INFO L403 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 14:02:06,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 14:02:06,978 INFO L85 PathProgramCache]: Analyzing trace with hash 1303023360, now seen corresponding path program 1 times [2022-04-06 14:02:06,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 14:02:06,979 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845217859] [2022-04-06 14:02:06,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 14:02:06,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 14:02:07,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:02:07,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 14:02:07,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:02:07,085 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-04-06 14:02:07,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 14:02:07,085 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1845217859] [2022-04-06 14:02:07,085 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1845217859] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 14:02:07,085 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 14:02:07,086 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 14:02:07,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147819197] [2022-04-06 14:02:07,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 14:02:07,086 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 14:02:07,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 14:02:07,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 14:02:07,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 14:02:07,086 INFO L87 Difference]: Start difference. First operand 343 states and 529 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) [2022-04-06 14:02:09,187 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:02:10,883 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 [] [2022-04-06 14:02:11,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 14:02:11,293 INFO L93 Difference]: Finished difference Result 782 states and 1214 transitions. [2022-04-06 14:02:11,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 14:02:11,294 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 123 [2022-04-06 14:02:11,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 14:02:11,295 INFO L225 Difference]: With dead ends: 782 [2022-04-06 14:02:11,295 INFO L226 Difference]: Without dead ends: 465 [2022-04-06 14:02:11,296 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 14:02:11,296 INFO L913 BasicCegarLoop]: 128 mSDtfsCounter, 130 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 486 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 374 SdHoareTripleChecker+Invalid, 546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 486 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-04-06 14:02:11,296 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [130 Valid, 374 Invalid, 546 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 486 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2022-04-06 14:02:11,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 465 states. [2022-04-06 14:02:11,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 465 to 380. [2022-04-06 14:02:11,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 380 states, 375 states have (on average 1.5653333333333332) internal successors, (587), 375 states have internal predecessors, (587), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:02:11,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 591 transitions. [2022-04-06 14:02:11,302 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 591 transitions. Word has length 123 [2022-04-06 14:02:11,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 14:02:11,302 INFO L478 AbstractCegarLoop]: Abstraction has 380 states and 591 transitions. [2022-04-06 14:02:11,302 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) [2022-04-06 14:02:11,302 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 591 transitions. [2022-04-06 14:02:11,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-04-06 14:02:11,303 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 14:02:11,303 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 14:02:11,303 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-04-06 14:02:11,303 INFO L403 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 14:02:11,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 14:02:11,303 INFO L85 PathProgramCache]: Analyzing trace with hash -1648642121, now seen corresponding path program 1 times [2022-04-06 14:02:11,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 14:02:11,304 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830204205] [2022-04-06 14:02:11,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 14:02:11,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 14:02:11,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:02:11,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 14:02:11,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:02:11,394 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-04-06 14:02:11,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 14:02:11,395 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1830204205] [2022-04-06 14:02:11,395 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1830204205] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 14:02:11,395 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 14:02:11,395 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 14:02:11,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772279093] [2022-04-06 14:02:11,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 14:02:11,395 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 14:02:11,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 14:02:11,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 14:02:11,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 14:02:11,396 INFO L87 Difference]: Start difference. First operand 380 states and 591 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) [2022-04-06 14:02:14,261 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:02:15,396 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:02:16,679 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:02:17,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 14:02:17,072 INFO L93 Difference]: Finished difference Result 795 states and 1241 transitions. [2022-04-06 14:02:17,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 14:02:17,073 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 124 [2022-04-06 14:02:17,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 14:02:17,074 INFO L225 Difference]: With dead ends: 795 [2022-04-06 14:02:17,074 INFO L226 Difference]: Without dead ends: 441 [2022-04-06 14:02:17,075 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 14:02:17,075 INFO L913 BasicCegarLoop]: 190 mSDtfsCounter, 84 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 515 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 505 SdHoareTripleChecker+Invalid, 526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 515 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-04-06 14:02:17,075 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [84 Valid, 505 Invalid, 526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 515 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2022-04-06 14:02:17,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 441 states. [2022-04-06 14:02:17,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 441 to 386. [2022-04-06 14:02:17,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 386 states, 381 states have (on average 1.5669291338582678) internal successors, (597), 381 states have internal predecessors, (597), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:02:17,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 601 transitions. [2022-04-06 14:02:17,081 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 601 transitions. Word has length 124 [2022-04-06 14:02:17,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 14:02:17,081 INFO L478 AbstractCegarLoop]: Abstraction has 386 states and 601 transitions. [2022-04-06 14:02:17,081 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) [2022-04-06 14:02:17,081 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 601 transitions. [2022-04-06 14:02:17,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-04-06 14:02:17,082 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 14:02:17,082 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 14:02:17,082 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-04-06 14:02:17,082 INFO L403 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 14:02:17,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 14:02:17,082 INFO L85 PathProgramCache]: Analyzing trace with hash -880398396, now seen corresponding path program 1 times [2022-04-06 14:02:17,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 14:02:17,082 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683205233] [2022-04-06 14:02:17,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 14:02:17,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 14:02:17,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:02:17,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 14:02:17,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:02:17,202 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 105 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-04-06 14:02:17,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 14:02:17,203 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1683205233] [2022-04-06 14:02:17,203 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1683205233] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 14:02:17,203 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 14:02:17,203 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 14:02:17,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277276377] [2022-04-06 14:02:17,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 14:02:17,203 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 14:02:17,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 14:02:17,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 14:02:17,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 14:02:17,204 INFO L87 Difference]: Start difference. First operand 386 states and 601 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:02:19,209 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:02:21,811 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:02:22,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 14:02:22,194 INFO L93 Difference]: Finished difference Result 827 states and 1289 transitions. [2022-04-06 14:02:22,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 14:02:22,195 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 131 [2022-04-06 14:02:22,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 14:02:22,196 INFO L225 Difference]: With dead ends: 827 [2022-04-06 14:02:22,196 INFO L226 Difference]: Without dead ends: 467 [2022-04-06 14:02:22,196 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 14:02:22,197 INFO L913 BasicCegarLoop]: 129 mSDtfsCounter, 149 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 376 SdHoareTripleChecker+Invalid, 544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-04-06 14:02:22,197 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [149 Valid, 376 Invalid, 544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 483 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2022-04-06 14:02:22,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 467 states. [2022-04-06 14:02:22,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 467 to 386. [2022-04-06 14:02:22,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 386 states, 381 states have (on average 1.5538057742782152) internal successors, (592), 381 states have internal predecessors, (592), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:02:22,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 596 transitions. [2022-04-06 14:02:22,202 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 596 transitions. Word has length 131 [2022-04-06 14:02:22,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 14:02:22,202 INFO L478 AbstractCegarLoop]: Abstraction has 386 states and 596 transitions. [2022-04-06 14:02:22,203 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:02:22,203 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 596 transitions. [2022-04-06 14:02:22,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-04-06 14:02:22,204 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 14:02:22,204 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 14:02:22,204 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-04-06 14:02:22,204 INFO L403 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 14:02:22,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 14:02:22,205 INFO L85 PathProgramCache]: Analyzing trace with hash 1831808920, now seen corresponding path program 1 times [2022-04-06 14:02:22,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 14:02:22,205 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957240753] [2022-04-06 14:02:22,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 14:02:22,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 14:02:22,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:02:22,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 14:02:22,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:02:22,288 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-04-06 14:02:22,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 14:02:22,288 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [957240753] [2022-04-06 14:02:22,288 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [957240753] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 14:02:22,288 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 14:02:22,289 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 14:02:22,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486322467] [2022-04-06 14:02:22,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 14:02:22,289 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 14:02:22,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 14:02:22,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 14:02:22,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 14:02:22,289 INFO L87 Difference]: Start difference. First operand 386 states and 596 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) [2022-04-06 14:02:26,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 14:02:26,029 INFO L93 Difference]: Finished difference Result 867 states and 1345 transitions. [2022-04-06 14:02:26,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 14:02:26,029 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 131 [2022-04-06 14:02:26,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 14:02:26,030 INFO L225 Difference]: With dead ends: 867 [2022-04-06 14:02:26,030 INFO L226 Difference]: Without dead ends: 507 [2022-04-06 14:02:26,031 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 14:02:26,031 INFO L913 BasicCegarLoop]: 139 mSDtfsCounter, 122 mSDsluCounter, 258 mSDsCounter, 0 mSdLazyCounter, 494 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 397 SdHoareTripleChecker+Invalid, 552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 494 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-04-06 14:02:26,031 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [122 Valid, 397 Invalid, 552 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 494 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-04-06 14:02:26,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 507 states. [2022-04-06 14:02:26,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 507 to 429. [2022-04-06 14:02:26,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 429 states, 424 states have (on average 1.5636792452830188) internal successors, (663), 424 states have internal predecessors, (663), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:02:26,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 429 states and 667 transitions. [2022-04-06 14:02:26,037 INFO L78 Accepts]: Start accepts. Automaton has 429 states and 667 transitions. Word has length 131 [2022-04-06 14:02:26,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 14:02:26,037 INFO L478 AbstractCegarLoop]: Abstraction has 429 states and 667 transitions. [2022-04-06 14:02:26,037 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) [2022-04-06 14:02:26,038 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states and 667 transitions. [2022-04-06 14:02:26,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-04-06 14:02:26,038 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 14:02:26,038 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 14:02:26,038 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-04-06 14:02:26,039 INFO L403 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 14:02:26,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 14:02:26,039 INFO L85 PathProgramCache]: Analyzing trace with hash 2144536674, now seen corresponding path program 1 times [2022-04-06 14:02:26,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 14:02:26,039 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804499705] [2022-04-06 14:02:26,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 14:02:26,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 14:02:26,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:02:26,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 14:02:26,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:02:26,134 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 81 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-04-06 14:02:26,134 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 14:02:26,134 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804499705] [2022-04-06 14:02:26,134 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [804499705] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 14:02:26,134 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 14:02:26,135 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 14:02:26,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490163467] [2022-04-06 14:02:26,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 14:02:26,135 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 14:02:26,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 14:02:26,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 14:02:26,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 14:02:26,136 INFO L87 Difference]: Start difference. First operand 429 states and 667 transitions. Second operand has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:02:27,176 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:02:29,162 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:02:31,194 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:02:33,222 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:02:33,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 14:02:33,608 INFO L93 Difference]: Finished difference Result 913 states and 1421 transitions. [2022-04-06 14:02:33,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 14:02:33,609 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 132 [2022-04-06 14:02:33,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 14:02:33,610 INFO L225 Difference]: With dead ends: 913 [2022-04-06 14:02:33,610 INFO L226 Difference]: Without dead ends: 510 [2022-04-06 14:02:33,611 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 14:02:33,611 INFO L913 BasicCegarLoop]: 129 mSDtfsCounter, 154 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 481 mSolverCounterSat, 61 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 376 SdHoareTripleChecker+Invalid, 544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 481 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2022-04-06 14:02:33,611 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [154 Valid, 376 Invalid, 544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 481 Invalid, 2 Unknown, 0 Unchecked, 7.5s Time] [2022-04-06 14:02:33,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 510 states. [2022-04-06 14:02:33,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 510 to 429. [2022-04-06 14:02:33,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 429 states, 424 states have (on average 1.5471698113207548) internal successors, (656), 424 states have internal predecessors, (656), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:02:33,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 429 states and 660 transitions. [2022-04-06 14:02:33,617 INFO L78 Accepts]: Start accepts. Automaton has 429 states and 660 transitions. Word has length 132 [2022-04-06 14:02:33,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 14:02:33,617 INFO L478 AbstractCegarLoop]: Abstraction has 429 states and 660 transitions. [2022-04-06 14:02:33,617 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:02:33,617 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states and 660 transitions. [2022-04-06 14:02:33,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-04-06 14:02:33,618 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 14:02:33,618 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 14:02:33,618 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-04-06 14:02:33,618 INFO L403 AbstractCegarLoop]: === Iteration 27 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 14:02:33,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 14:02:33,619 INFO L85 PathProgramCache]: Analyzing trace with hash 930118479, now seen corresponding path program 1 times [2022-04-06 14:02:33,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 14:02:33,619 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606150740] [2022-04-06 14:02:33,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 14:02:33,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 14:02:33,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:02:33,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 14:02:33,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:02:33,702 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-04-06 14:02:33,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 14:02:33,703 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606150740] [2022-04-06 14:02:33,703 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1606150740] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 14:02:33,703 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 14:02:33,703 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 14:02:33,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456158614] [2022-04-06 14:02:33,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 14:02:33,703 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 14:02:33,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 14:02:33,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 14:02:33,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 14:02:33,704 INFO L87 Difference]: Start difference. First operand 429 states and 660 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) [2022-04-06 14:02:34,968 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:02:36,991 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:02:39,017 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:02:41,047 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:02:41,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 14:02:41,458 INFO L93 Difference]: Finished difference Result 913 states and 1407 transitions. [2022-04-06 14:02:41,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 14:02:41,458 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 132 [2022-04-06 14:02:41,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 14:02:41,459 INFO L225 Difference]: With dead ends: 913 [2022-04-06 14:02:41,460 INFO L226 Difference]: Without dead ends: 508 [2022-04-06 14:02:41,460 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 14:02:41,460 INFO L913 BasicCegarLoop]: 139 mSDtfsCounter, 122 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 491 mSolverCounterSat, 58 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 396 SdHoareTripleChecker+Invalid, 551 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 491 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2022-04-06 14:02:41,460 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [122 Valid, 396 Invalid, 551 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 491 Invalid, 2 Unknown, 0 Unchecked, 7.7s Time] [2022-04-06 14:02:41,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 508 states. [2022-04-06 14:02:41,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 508 to 431. [2022-04-06 14:02:41,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 431 states, 426 states have (on average 1.5469483568075117) internal successors, (659), 426 states have internal predecessors, (659), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:02:41,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 431 states to 431 states and 663 transitions. [2022-04-06 14:02:41,466 INFO L78 Accepts]: Start accepts. Automaton has 431 states and 663 transitions. Word has length 132 [2022-04-06 14:02:41,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 14:02:41,466 INFO L478 AbstractCegarLoop]: Abstraction has 431 states and 663 transitions. [2022-04-06 14:02:41,466 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) [2022-04-06 14:02:41,467 INFO L276 IsEmpty]: Start isEmpty. Operand 431 states and 663 transitions. [2022-04-06 14:02:41,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-04-06 14:02:41,467 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 14:02:41,467 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 14:02:41,467 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-04-06 14:02:41,468 INFO L403 AbstractCegarLoop]: === Iteration 28 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 14:02:41,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 14:02:41,468 INFO L85 PathProgramCache]: Analyzing trace with hash 895416220, now seen corresponding path program 1 times [2022-04-06 14:02:41,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 14:02:41,468 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [207824334] [2022-04-06 14:02:41,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 14:02:41,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 14:02:41,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:02:41,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 14:02:41,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:02:41,554 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 93 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-04-06 14:02:41,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 14:02:41,554 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [207824334] [2022-04-06 14:02:41,554 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [207824334] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 14:02:41,554 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 14:02:41,554 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 14:02:41,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140618329] [2022-04-06 14:02:41,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 14:02:41,554 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 14:02:41,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 14:02:41,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 14:02:41,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 14:02:41,555 INFO L87 Difference]: Start difference. First operand 431 states and 663 transitions. Second operand has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:02:45,058 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:02:45,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 14:02:45,425 INFO L93 Difference]: Finished difference Result 874 states and 1350 transitions. [2022-04-06 14:02:45,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 14:02:45,425 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 135 [2022-04-06 14:02:45,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 14:02:45,426 INFO L225 Difference]: With dead ends: 874 [2022-04-06 14:02:45,427 INFO L226 Difference]: Without dead ends: 469 [2022-04-06 14:02:45,427 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 14:02:45,427 INFO L913 BasicCegarLoop]: 201 mSDtfsCounter, 88 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 493 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 525 SdHoareTripleChecker+Invalid, 501 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 493 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-04-06 14:02:45,428 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [88 Valid, 525 Invalid, 501 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 493 Invalid, 1 Unknown, 0 Unchecked, 3.9s Time] [2022-04-06 14:02:45,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469 states. [2022-04-06 14:02:45,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 469 to 431. [2022-04-06 14:02:45,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 431 states, 426 states have (on average 1.5446009389671362) internal successors, (658), 426 states have internal predecessors, (658), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:02:45,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 431 states to 431 states and 662 transitions. [2022-04-06 14:02:45,433 INFO L78 Accepts]: Start accepts. Automaton has 431 states and 662 transitions. Word has length 135 [2022-04-06 14:02:45,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 14:02:45,433 INFO L478 AbstractCegarLoop]: Abstraction has 431 states and 662 transitions. [2022-04-06 14:02:45,433 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:02:45,433 INFO L276 IsEmpty]: Start isEmpty. Operand 431 states and 662 transitions. [2022-04-06 14:02:45,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-04-06 14:02:45,434 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 14:02:45,434 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 14:02:45,434 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-04-06 14:02:45,434 INFO L403 AbstractCegarLoop]: === Iteration 29 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 14:02:45,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 14:02:45,435 INFO L85 PathProgramCache]: Analyzing trace with hash -1545205539, now seen corresponding path program 1 times [2022-04-06 14:02:45,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 14:02:45,435 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553035524] [2022-04-06 14:02:45,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 14:02:45,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 14:02:45,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:02:45,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 14:02:45,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:02:45,516 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 93 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-04-06 14:02:45,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 14:02:45,516 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553035524] [2022-04-06 14:02:45,516 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1553035524] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 14:02:45,516 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 14:02:45,516 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 14:02:45,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032322294] [2022-04-06 14:02:45,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 14:02:45,517 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 14:02:45,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 14:02:45,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 14:02:45,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 14:02:45,517 INFO L87 Difference]: Start difference. First operand 431 states and 662 transitions. Second operand has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:02:46,639 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:02:48,657 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:02:50,194 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:02:52,217 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:02:52,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 14:02:52,586 INFO L93 Difference]: Finished difference Result 848 states and 1311 transitions. [2022-04-06 14:02:52,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 14:02:52,586 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 135 [2022-04-06 14:02:52,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 14:02:52,587 INFO L225 Difference]: With dead ends: 848 [2022-04-06 14:02:52,587 INFO L226 Difference]: Without dead ends: 443 [2022-04-06 14:02:52,588 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 14:02:52,588 INFO L913 BasicCegarLoop]: 248 mSDtfsCounter, 36 mSDsluCounter, 371 mSDsCounter, 0 mSdLazyCounter, 433 mSolverCounterSat, 5 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 619 SdHoareTripleChecker+Invalid, 440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 433 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2022-04-06 14:02:52,588 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 619 Invalid, 440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 433 Invalid, 2 Unknown, 0 Unchecked, 7.1s Time] [2022-04-06 14:02:52,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443 states. [2022-04-06 14:02:52,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 431. [2022-04-06 14:02:52,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 431 states, 426 states have (on average 1.5422535211267605) internal successors, (657), 426 states have internal predecessors, (657), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:02:52,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 431 states to 431 states and 661 transitions. [2022-04-06 14:02:52,594 INFO L78 Accepts]: Start accepts. Automaton has 431 states and 661 transitions. Word has length 135 [2022-04-06 14:02:52,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 14:02:52,594 INFO L478 AbstractCegarLoop]: Abstraction has 431 states and 661 transitions. [2022-04-06 14:02:52,594 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:02:52,594 INFO L276 IsEmpty]: Start isEmpty. Operand 431 states and 661 transitions. [2022-04-06 14:02:52,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2022-04-06 14:02:52,595 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 14:02:52,595 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 14:02:52,595 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-04-06 14:02:52,596 INFO L403 AbstractCegarLoop]: === Iteration 30 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 14:02:52,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 14:02:52,596 INFO L85 PathProgramCache]: Analyzing trace with hash 106764108, now seen corresponding path program 1 times [2022-04-06 14:02:52,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 14:02:52,596 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001709318] [2022-04-06 14:02:52,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 14:02:52,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 14:02:52,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:02:52,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 14:02:52,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:02:52,685 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 122 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-04-06 14:02:52,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 14:02:52,685 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001709318] [2022-04-06 14:02:52,686 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1001709318] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 14:02:52,686 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 14:02:52,686 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 14:02:52,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654278371] [2022-04-06 14:02:52,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 14:02:52,686 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 14:02:52,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 14:02:52,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 14:02:52,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 14:02:52,686 INFO L87 Difference]: Start difference. First operand 431 states and 661 transitions. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:02:54,047 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:02:56,070 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:02:57,919 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:02:58,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 14:02:58,880 INFO L93 Difference]: Finished difference Result 874 states and 1346 transitions. [2022-04-06 14:02:58,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 14:02:58,881 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 139 [2022-04-06 14:02:58,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 14:02:58,882 INFO L225 Difference]: With dead ends: 874 [2022-04-06 14:02:58,882 INFO L226 Difference]: Without dead ends: 469 [2022-04-06 14:02:58,883 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 14:02:58,883 INFO L913 BasicCegarLoop]: 208 mSDtfsCounter, 78 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 500 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 541 SdHoareTripleChecker+Invalid, 508 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 500 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-04-06 14:02:58,883 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [78 Valid, 541 Invalid, 508 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 500 Invalid, 1 Unknown, 0 Unchecked, 6.2s Time] [2022-04-06 14:02:58,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469 states. [2022-04-06 14:02:58,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 469 to 431. [2022-04-06 14:02:58,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 431 states, 426 states have (on average 1.539906103286385) internal successors, (656), 426 states have internal predecessors, (656), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:02:58,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 431 states to 431 states and 660 transitions. [2022-04-06 14:02:58,889 INFO L78 Accepts]: Start accepts. Automaton has 431 states and 660 transitions. Word has length 139 [2022-04-06 14:02:58,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 14:02:58,889 INFO L478 AbstractCegarLoop]: Abstraction has 431 states and 660 transitions. [2022-04-06 14:02:58,889 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:02:58,889 INFO L276 IsEmpty]: Start isEmpty. Operand 431 states and 660 transitions. [2022-04-06 14:02:58,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2022-04-06 14:02:58,890 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 14:02:58,890 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 14:02:58,890 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-04-06 14:02:58,890 INFO L403 AbstractCegarLoop]: === Iteration 31 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 14:02:58,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 14:02:58,891 INFO L85 PathProgramCache]: Analyzing trace with hash -863526899, now seen corresponding path program 1 times [2022-04-06 14:02:58,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 14:02:58,891 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962192230] [2022-04-06 14:02:58,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 14:02:58,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 14:02:58,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:02:58,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 14:02:58,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:02:58,978 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 121 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-04-06 14:02:58,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 14:02:58,978 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962192230] [2022-04-06 14:02:58,978 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [962192230] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 14:02:58,978 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 14:02:58,978 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 14:02:58,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342448600] [2022-04-06 14:02:58,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 14:02:58,979 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 14:02:58,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 14:02:58,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 14:02:58,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 14:02:58,979 INFO L87 Difference]: Start difference. First operand 431 states and 660 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) [2022-04-06 14:03:01,512 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:03:03,535 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:03:04,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 14:03:04,555 INFO L93 Difference]: Finished difference Result 991 states and 1529 transitions. [2022-04-06 14:03:04,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 14:03:04,555 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 139 [2022-04-06 14:03:04,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 14:03:04,557 INFO L225 Difference]: With dead ends: 991 [2022-04-06 14:03:04,557 INFO L226 Difference]: Without dead ends: 586 [2022-04-06 14:03:04,557 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 14:03:04,558 INFO L913 BasicCegarLoop]: 146 mSDtfsCounter, 130 mSDsluCounter, 264 mSDsCounter, 0 mSdLazyCounter, 485 mSolverCounterSat, 47 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 410 SdHoareTripleChecker+Invalid, 533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 485 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-04-06 14:03:04,558 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [130 Valid, 410 Invalid, 533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 485 Invalid, 1 Unknown, 0 Unchecked, 5.6s Time] [2022-04-06 14:03:04,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 586 states. [2022-04-06 14:03:04,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 586 to 495. [2022-04-06 14:03:04,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 495 states, 490 states have (on average 1.542857142857143) internal successors, (756), 490 states have internal predecessors, (756), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:03:04,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 495 states to 495 states and 760 transitions. [2022-04-06 14:03:04,565 INFO L78 Accepts]: Start accepts. Automaton has 495 states and 760 transitions. Word has length 139 [2022-04-06 14:03:04,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 14:03:04,565 INFO L478 AbstractCegarLoop]: Abstraction has 495 states and 760 transitions. [2022-04-06 14:03:04,565 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) [2022-04-06 14:03:04,565 INFO L276 IsEmpty]: Start isEmpty. Operand 495 states and 760 transitions. [2022-04-06 14:03:04,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-04-06 14:03:04,566 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 14:03:04,566 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 14:03:04,566 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-04-06 14:03:04,566 INFO L403 AbstractCegarLoop]: === Iteration 32 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 14:03:04,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 14:03:04,566 INFO L85 PathProgramCache]: Analyzing trace with hash -353743273, now seen corresponding path program 1 times [2022-04-06 14:03:04,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 14:03:04,567 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187983220] [2022-04-06 14:03:04,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 14:03:04,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 14:03:04,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:03:04,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 14:03:04,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:03:04,657 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 134 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-04-06 14:03:04,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 14:03:04,658 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1187983220] [2022-04-06 14:03:04,658 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1187983220] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 14:03:04,658 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 14:03:04,658 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 14:03:04,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415337781] [2022-04-06 14:03:04,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 14:03:04,658 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 14:03:04,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 14:03:04,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 14:03:04,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 14:03:04,659 INFO L87 Difference]: Start difference. First operand 495 states and 760 transitions. Second operand has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:03:07,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 14:03:07,010 INFO L93 Difference]: Finished difference Result 1002 states and 1544 transitions. [2022-04-06 14:03:07,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 14:03:07,011 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 144 [2022-04-06 14:03:07,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 14:03:07,012 INFO L225 Difference]: With dead ends: 1002 [2022-04-06 14:03:07,012 INFO L226 Difference]: Without dead ends: 533 [2022-04-06 14:03:07,013 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 14:03:07,013 INFO L913 BasicCegarLoop]: 208 mSDtfsCounter, 71 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 501 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 541 SdHoareTripleChecker+Invalid, 508 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 501 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-04-06 14:03:07,013 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [71 Valid, 541 Invalid, 508 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 501 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-04-06 14:03:07,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 533 states. [2022-04-06 14:03:07,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 533 to 495. [2022-04-06 14:03:07,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 495 states, 490 states have (on average 1.5408163265306123) internal successors, (755), 490 states have internal predecessors, (755), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:03:07,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 495 states to 495 states and 759 transitions. [2022-04-06 14:03:07,020 INFO L78 Accepts]: Start accepts. Automaton has 495 states and 759 transitions. Word has length 144 [2022-04-06 14:03:07,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 14:03:07,020 INFO L478 AbstractCegarLoop]: Abstraction has 495 states and 759 transitions. [2022-04-06 14:03:07,020 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:03:07,020 INFO L276 IsEmpty]: Start isEmpty. Operand 495 states and 759 transitions. [2022-04-06 14:03:07,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-04-06 14:03:07,021 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 14:03:07,021 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 14:03:07,021 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-04-06 14:03:07,021 INFO L403 AbstractCegarLoop]: === Iteration 33 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 14:03:07,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 14:03:07,021 INFO L85 PathProgramCache]: Analyzing trace with hash -649786349, now seen corresponding path program 1 times [2022-04-06 14:03:07,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 14:03:07,021 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793310087] [2022-04-06 14:03:07,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 14:03:07,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 14:03:07,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:03:07,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 14:03:07,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:03:07,151 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 136 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-04-06 14:03:07,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 14:03:07,151 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793310087] [2022-04-06 14:03:07,151 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1793310087] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 14:03:07,151 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 14:03:07,151 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 14:03:07,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868840942] [2022-04-06 14:03:07,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 14:03:07,151 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 14:03:07,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 14:03:07,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 14:03:07,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 14:03:07,152 INFO L87 Difference]: Start difference. First operand 495 states and 759 transitions. Second operand has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:03:08,457 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:03:10,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 14:03:10,153 INFO L93 Difference]: Finished difference Result 1041 states and 1598 transitions. [2022-04-06 14:03:10,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 14:03:10,153 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 145 [2022-04-06 14:03:10,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 14:03:10,155 INFO L225 Difference]: With dead ends: 1041 [2022-04-06 14:03:10,155 INFO L226 Difference]: Without dead ends: 572 [2022-04-06 14:03:10,155 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 14:03:10,156 INFO L913 BasicCegarLoop]: 130 mSDtfsCounter, 132 mSDsluCounter, 248 mSDsCounter, 0 mSdLazyCounter, 481 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 481 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-04-06 14:03:10,156 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [132 Valid, 378 Invalid, 542 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 481 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-04-06 14:03:10,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 572 states. [2022-04-06 14:03:10,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 572 to 495. [2022-04-06 14:03:10,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 495 states, 490 states have (on average 1.526530612244898) internal successors, (748), 490 states have internal predecessors, (748), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:03:10,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 495 states to 495 states and 752 transitions. [2022-04-06 14:03:10,162 INFO L78 Accepts]: Start accepts. Automaton has 495 states and 752 transitions. Word has length 145 [2022-04-06 14:03:10,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 14:03:10,162 INFO L478 AbstractCegarLoop]: Abstraction has 495 states and 752 transitions. [2022-04-06 14:03:10,163 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:03:10,163 INFO L276 IsEmpty]: Start isEmpty. Operand 495 states and 752 transitions. [2022-04-06 14:03:10,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-04-06 14:03:10,163 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 14:03:10,164 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 14:03:10,164 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-04-06 14:03:10,164 INFO L403 AbstractCegarLoop]: === Iteration 34 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 14:03:10,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 14:03:10,164 INFO L85 PathProgramCache]: Analyzing trace with hash 1588807284, now seen corresponding path program 1 times [2022-04-06 14:03:10,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 14:03:10,164 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265014246] [2022-04-06 14:03:10,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 14:03:10,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 14:03:10,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:03:10,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 14:03:10,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:03:10,250 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 136 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-04-06 14:03:10,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 14:03:10,250 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265014246] [2022-04-06 14:03:10,250 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1265014246] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 14:03:10,250 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 14:03:10,250 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-06 14:03:10,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144899595] [2022-04-06 14:03:10,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 14:03:10,251 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 14:03:10,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 14:03:10,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 14:03:10,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 14:03:10,251 INFO L87 Difference]: Start difference. First operand 495 states and 752 transitions. Second operand has 4 states, 4 states have (on average 28.5) internal successors, (114), 3 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) [2022-04-06 14:03:11,848 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:03:13,794 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:03:15,823 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:03:16,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 14:03:16,131 INFO L93 Difference]: Finished difference Result 1428 states and 2190 transitions. [2022-04-06 14:03:16,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 14:03:16,131 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.5) internal successors, (114), 3 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 146 [2022-04-06 14:03:16,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 14:03:16,134 INFO L225 Difference]: With dead ends: 1428 [2022-04-06 14:03:16,134 INFO L226 Difference]: Without dead ends: 959 [2022-04-06 14:03:16,134 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 14:03:16,135 INFO L913 BasicCegarLoop]: 253 mSDtfsCounter, 144 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 315 mSolverCounterSat, 16 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 447 SdHoareTripleChecker+Invalid, 332 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 315 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-04-06 14:03:16,135 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [144 Valid, 447 Invalid, 332 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 315 Invalid, 1 Unknown, 0 Unchecked, 5.9s Time] [2022-04-06 14:03:16,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 959 states. [2022-04-06 14:03:16,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 959 to 957. [2022-04-06 14:03:16,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 957 states, 952 states have (on average 1.5210084033613445) internal successors, (1448), 952 states have internal predecessors, (1448), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:03:16,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 957 states to 957 states and 1452 transitions. [2022-04-06 14:03:16,147 INFO L78 Accepts]: Start accepts. Automaton has 957 states and 1452 transitions. Word has length 146 [2022-04-06 14:03:16,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 14:03:16,147 INFO L478 AbstractCegarLoop]: Abstraction has 957 states and 1452 transitions. [2022-04-06 14:03:16,147 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.5) internal successors, (114), 3 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) [2022-04-06 14:03:16,147 INFO L276 IsEmpty]: Start isEmpty. Operand 957 states and 1452 transitions. [2022-04-06 14:03:16,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-04-06 14:03:16,149 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 14:03:16,149 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 14:03:16,149 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-04-06 14:03:16,149 INFO L403 AbstractCegarLoop]: === Iteration 35 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 14:03:16,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 14:03:16,149 INFO L85 PathProgramCache]: Analyzing trace with hash -1244580013, now seen corresponding path program 1 times [2022-04-06 14:03:16,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 14:03:16,149 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043317436] [2022-04-06 14:03:16,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 14:03:16,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 14:03:16,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:03:16,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 14:03:16,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:03:16,251 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 115 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2022-04-06 14:03:16,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 14:03:16,252 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043317436] [2022-04-06 14:03:16,252 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2043317436] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 14:03:16,252 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 14:03:16,252 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 14:03:16,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382163592] [2022-04-06 14:03:16,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 14:03:16,252 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 14:03:16,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 14:03:16,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 14:03:16,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 14:03:16,253 INFO L87 Difference]: Start difference. First operand 957 states and 1452 transitions. Second operand has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:03:17,383 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:03:19,401 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:03:22,200 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:03:22,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 14:03:22,570 INFO L93 Difference]: Finished difference Result 1987 states and 3016 transitions. [2022-04-06 14:03:22,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 14:03:22,570 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 146 [2022-04-06 14:03:22,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 14:03:22,573 INFO L225 Difference]: With dead ends: 1987 [2022-04-06 14:03:22,573 INFO L226 Difference]: Without dead ends: 1056 [2022-04-06 14:03:22,574 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 14:03:22,575 INFO L913 BasicCegarLoop]: 242 mSDtfsCounter, 38 mSDsluCounter, 365 mSDsCounter, 0 mSdLazyCounter, 465 mSolverCounterSat, 9 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 607 SdHoareTripleChecker+Invalid, 476 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 465 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-04-06 14:03:22,575 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 607 Invalid, 476 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 465 Invalid, 2 Unknown, 0 Unchecked, 6.3s Time] [2022-04-06 14:03:22,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1056 states. [2022-04-06 14:03:22,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1056 to 1009. [2022-04-06 14:03:22,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1009 states, 1004 states have (on average 1.5199203187250996) internal successors, (1526), 1004 states have internal predecessors, (1526), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:03:22,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1009 states to 1009 states and 1530 transitions. [2022-04-06 14:03:22,587 INFO L78 Accepts]: Start accepts. Automaton has 1009 states and 1530 transitions. Word has length 146 [2022-04-06 14:03:22,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 14:03:22,587 INFO L478 AbstractCegarLoop]: Abstraction has 1009 states and 1530 transitions. [2022-04-06 14:03:22,587 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:03:22,587 INFO L276 IsEmpty]: Start isEmpty. Operand 1009 states and 1530 transitions. [2022-04-06 14:03:22,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-04-06 14:03:22,589 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 14:03:22,589 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] [2022-04-06 14:03:22,589 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-04-06 14:03:22,589 INFO L403 AbstractCegarLoop]: === Iteration 36 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 14:03:22,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 14:03:22,590 INFO L85 PathProgramCache]: Analyzing trace with hash 1093415464, now seen corresponding path program 1 times [2022-04-06 14:03:22,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 14:03:22,590 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [337561942] [2022-04-06 14:03:22,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 14:03:22,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 14:03:22,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:03:22,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 14:03:22,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:03:22,678 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 130 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-04-06 14:03:22,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 14:03:22,678 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [337561942] [2022-04-06 14:03:22,678 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [337561942] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 14:03:22,678 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 14:03:22,678 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 14:03:22,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387158072] [2022-04-06 14:03:22,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 14:03:22,678 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 14:03:22,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 14:03:22,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 14:03:22,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 14:03:22,679 INFO L87 Difference]: Start difference. First operand 1009 states and 1530 transitions. Second operand has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:03:24,679 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:03:26,710 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:03:28,739 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:03:29,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 14:03:29,868 INFO L93 Difference]: Finished difference Result 2063 states and 3127 transitions. [2022-04-06 14:03:29,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 14:03:29,869 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 148 [2022-04-06 14:03:29,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 14:03:29,871 INFO L225 Difference]: With dead ends: 2063 [2022-04-06 14:03:29,871 INFO L226 Difference]: Without dead ends: 1080 [2022-04-06 14:03:29,872 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 14:03:29,874 INFO L913 BasicCegarLoop]: 209 mSDtfsCounter, 70 mSDsluCounter, 334 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 543 SdHoareTripleChecker+Invalid, 506 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2022-04-06 14:03:29,874 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [70 Valid, 543 Invalid, 506 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 497 Invalid, 2 Unknown, 0 Unchecked, 7.2s Time] [2022-04-06 14:03:29,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1080 states. [2022-04-06 14:03:29,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1080 to 1009. [2022-04-06 14:03:29,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1009 states, 1004 states have (on average 1.5179282868525896) internal successors, (1524), 1004 states have internal predecessors, (1524), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:03:29,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1009 states to 1009 states and 1528 transitions. [2022-04-06 14:03:29,886 INFO L78 Accepts]: Start accepts. Automaton has 1009 states and 1528 transitions. Word has length 148 [2022-04-06 14:03:29,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 14:03:29,886 INFO L478 AbstractCegarLoop]: Abstraction has 1009 states and 1528 transitions. [2022-04-06 14:03:29,887 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:03:29,887 INFO L276 IsEmpty]: Start isEmpty. Operand 1009 states and 1528 transitions. [2022-04-06 14:03:29,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-04-06 14:03:29,889 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 14:03:29,889 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] [2022-04-06 14:03:29,889 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-04-06 14:03:29,889 INFO L403 AbstractCegarLoop]: === Iteration 37 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 14:03:29,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 14:03:29,889 INFO L85 PathProgramCache]: Analyzing trace with hash -627251098, now seen corresponding path program 1 times [2022-04-06 14:03:29,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 14:03:29,889 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440351047] [2022-04-06 14:03:29,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 14:03:29,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 14:03:29,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:03:29,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 14:03:29,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:03:29,985 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-04-06 14:03:29,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 14:03:29,986 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [440351047] [2022-04-06 14:03:29,986 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [440351047] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 14:03:29,986 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 14:03:29,986 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 14:03:29,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010519303] [2022-04-06 14:03:29,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 14:03:29,987 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 14:03:29,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 14:03:29,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 14:03:29,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 14:03:29,988 INFO L87 Difference]: Start difference. First operand 1009 states and 1528 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) [2022-04-06 14:03:31,030 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:03:32,756 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:03:34,780 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:03:36,257 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:03:36,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 14:03:36,674 INFO L93 Difference]: Finished difference Result 2141 states and 3228 transitions. [2022-04-06 14:03:36,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 14:03:36,675 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 149 [2022-04-06 14:03:36,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 14:03:36,678 INFO L225 Difference]: With dead ends: 2141 [2022-04-06 14:03:36,678 INFO L226 Difference]: Without dead ends: 1158 [2022-04-06 14:03:36,679 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 14:03:36,679 INFO L913 BasicCegarLoop]: 130 mSDtfsCounter, 133 mSDsluCounter, 248 mSDsCounter, 0 mSdLazyCounter, 480 mSolverCounterSat, 61 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 480 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2022-04-06 14:03:36,679 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [133 Valid, 378 Invalid, 542 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 480 Invalid, 1 Unknown, 0 Unchecked, 6.7s Time] [2022-04-06 14:03:36,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1158 states. [2022-04-06 14:03:36,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1158 to 1009. [2022-04-06 14:03:36,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1009 states, 1004 states have (on average 1.50398406374502) internal successors, (1510), 1004 states have internal predecessors, (1510), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:03:36,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1009 states to 1009 states and 1514 transitions. [2022-04-06 14:03:36,693 INFO L78 Accepts]: Start accepts. Automaton has 1009 states and 1514 transitions. Word has length 149 [2022-04-06 14:03:36,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 14:03:36,693 INFO L478 AbstractCegarLoop]: Abstraction has 1009 states and 1514 transitions. [2022-04-06 14:03:36,693 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) [2022-04-06 14:03:36,693 INFO L276 IsEmpty]: Start isEmpty. Operand 1009 states and 1514 transitions. [2022-04-06 14:03:36,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2022-04-06 14:03:36,695 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 14:03:36,695 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 14:03:36,695 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-04-06 14:03:36,695 INFO L403 AbstractCegarLoop]: === Iteration 38 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 14:03:36,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 14:03:36,695 INFO L85 PathProgramCache]: Analyzing trace with hash -1463851763, now seen corresponding path program 1 times [2022-04-06 14:03:36,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 14:03:36,696 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127687903] [2022-04-06 14:03:36,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 14:03:36,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 14:03:36,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:03:36,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 14:03:36,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:03:36,814 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 126 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-04-06 14:03:36,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 14:03:36,814 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1127687903] [2022-04-06 14:03:36,814 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1127687903] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 14:03:36,814 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 14:03:36,814 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 14:03:36,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358134809] [2022-04-06 14:03:36,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 14:03:36,816 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 14:03:36,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 14:03:36,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 14:03:36,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 14:03:36,816 INFO L87 Difference]: Start difference. First operand 1009 states and 1514 transitions. Second operand has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:03:39,254 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:03:41,271 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:03:41,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 14:03:41,640 INFO L93 Difference]: Finished difference Result 2047 states and 3069 transitions. [2022-04-06 14:03:41,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 14:03:41,640 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 152 [2022-04-06 14:03:41,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 14:03:41,643 INFO L225 Difference]: With dead ends: 2047 [2022-04-06 14:03:41,643 INFO L226 Difference]: Without dead ends: 1064 [2022-04-06 14:03:41,644 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 14:03:41,644 INFO L913 BasicCegarLoop]: 218 mSDtfsCounter, 61 mSDsluCounter, 343 mSDsCounter, 0 mSdLazyCounter, 480 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 561 SdHoareTripleChecker+Invalid, 488 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 480 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-04-06 14:03:41,644 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [61 Valid, 561 Invalid, 488 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 480 Invalid, 1 Unknown, 0 Unchecked, 4.8s Time] [2022-04-06 14:03:41,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1064 states. [2022-04-06 14:03:41,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1064 to 1009. [2022-04-06 14:03:41,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1009 states, 1004 states have (on average 1.50199203187251) internal successors, (1508), 1004 states have internal predecessors, (1508), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:03:41,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1009 states to 1009 states and 1512 transitions. [2022-04-06 14:03:41,667 INFO L78 Accepts]: Start accepts. Automaton has 1009 states and 1512 transitions. Word has length 152 [2022-04-06 14:03:41,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 14:03:41,668 INFO L478 AbstractCegarLoop]: Abstraction has 1009 states and 1512 transitions. [2022-04-06 14:03:41,668 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:03:41,668 INFO L276 IsEmpty]: Start isEmpty. Operand 1009 states and 1512 transitions. [2022-04-06 14:03:41,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-04-06 14:03:41,669 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 14:03:41,669 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 14:03:41,669 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-04-06 14:03:41,669 INFO L403 AbstractCegarLoop]: === Iteration 39 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 14:03:41,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 14:03:41,670 INFO L85 PathProgramCache]: Analyzing trace with hash 1470705865, now seen corresponding path program 1 times [2022-04-06 14:03:41,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 14:03:41,670 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158738770] [2022-04-06 14:03:41,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 14:03:41,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 14:03:41,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:03:41,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 14:03:41,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:03:41,763 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 128 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-04-06 14:03:41,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 14:03:41,764 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [158738770] [2022-04-06 14:03:41,764 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [158738770] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 14:03:41,764 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 14:03:41,764 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 14:03:41,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135012891] [2022-04-06 14:03:41,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 14:03:41,764 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 14:03:41,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 14:03:41,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 14:03:41,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 14:03:41,765 INFO L87 Difference]: Start difference. First operand 1009 states and 1512 transitions. Second operand has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:03:43,772 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:03:44,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 14:03:44,192 INFO L93 Difference]: Finished difference Result 2141 states and 3196 transitions. [2022-04-06 14:03:44,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 14:03:44,192 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 153 [2022-04-06 14:03:44,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 14:03:44,195 INFO L225 Difference]: With dead ends: 2141 [2022-04-06 14:03:44,195 INFO L226 Difference]: Without dead ends: 1158 [2022-04-06 14:03:44,196 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 14:03:44,197 INFO L913 BasicCegarLoop]: 130 mSDtfsCounter, 134 mSDsluCounter, 248 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 61 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-06 14:03:44,197 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [134 Valid, 378 Invalid, 539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 477 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-04-06 14:03:44,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1158 states. [2022-04-06 14:03:44,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1158 to 1009. [2022-04-06 14:03:44,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1009 states, 1004 states have (on average 1.4880478087649402) internal successors, (1494), 1004 states have internal predecessors, (1494), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:03:44,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1009 states to 1009 states and 1498 transitions. [2022-04-06 14:03:44,221 INFO L78 Accepts]: Start accepts. Automaton has 1009 states and 1498 transitions. Word has length 153 [2022-04-06 14:03:44,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 14:03:44,221 INFO L478 AbstractCegarLoop]: Abstraction has 1009 states and 1498 transitions. [2022-04-06 14:03:44,221 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:03:44,222 INFO L276 IsEmpty]: Start isEmpty. Operand 1009 states and 1498 transitions. [2022-04-06 14:03:44,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-04-06 14:03:44,223 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 14:03:44,223 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 14:03:44,223 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-04-06 14:03:44,223 INFO L403 AbstractCegarLoop]: === Iteration 40 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 14:03:44,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 14:03:44,223 INFO L85 PathProgramCache]: Analyzing trace with hash 1804153017, now seen corresponding path program 1 times [2022-04-06 14:03:44,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 14:03:44,224 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859353837] [2022-04-06 14:03:44,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 14:03:44,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 14:03:44,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:03:44,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 14:03:44,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:03:44,309 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 140 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-04-06 14:03:44,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 14:03:44,309 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859353837] [2022-04-06 14:03:44,309 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [859353837] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 14:03:44,309 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 14:03:44,309 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 14:03:44,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742945923] [2022-04-06 14:03:44,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 14:03:44,309 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 14:03:44,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 14:03:44,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 14:03:44,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 14:03:44,310 INFO L87 Difference]: Start difference. First operand 1009 states and 1498 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) [2022-04-06 14:03:45,836 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:03:47,860 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:03:49,886 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:03:51,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 14:03:51,053 INFO L93 Difference]: Finished difference Result 2043 states and 3031 transitions. [2022-04-06 14:03:51,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 14:03:51,053 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 156 [2022-04-06 14:03:51,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 14:03:51,056 INFO L225 Difference]: With dead ends: 2043 [2022-04-06 14:03:51,056 INFO L226 Difference]: Without dead ends: 1060 [2022-04-06 14:03:51,057 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 14:03:51,058 INFO L913 BasicCegarLoop]: 221 mSDtfsCounter, 51 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 567 SdHoareTripleChecker+Invalid, 482 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2022-04-06 14:03:51,058 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [51 Valid, 567 Invalid, 482 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 473 Invalid, 2 Unknown, 0 Unchecked, 6.7s Time] [2022-04-06 14:03:51,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1060 states. [2022-04-06 14:03:51,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1060 to 1009. [2022-04-06 14:03:51,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1009 states, 1004 states have (on average 1.4860557768924303) internal successors, (1492), 1004 states have internal predecessors, (1492), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:03:51,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1009 states to 1009 states and 1496 transitions. [2022-04-06 14:03:51,070 INFO L78 Accepts]: Start accepts. Automaton has 1009 states and 1496 transitions. Word has length 156 [2022-04-06 14:03:51,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 14:03:51,070 INFO L478 AbstractCegarLoop]: Abstraction has 1009 states and 1496 transitions. [2022-04-06 14:03:51,070 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) [2022-04-06 14:03:51,071 INFO L276 IsEmpty]: Start isEmpty. Operand 1009 states and 1496 transitions. [2022-04-06 14:03:51,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-04-06 14:03:51,072 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 14:03:51,072 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] [2022-04-06 14:03:51,072 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-04-06 14:03:51,072 INFO L403 AbstractCegarLoop]: === Iteration 41 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 14:03:51,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 14:03:51,072 INFO L85 PathProgramCache]: Analyzing trace with hash 1187930418, now seen corresponding path program 1 times [2022-04-06 14:03:51,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 14:03:51,073 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18160578] [2022-04-06 14:03:51,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 14:03:51,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 14:03:51,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:03:51,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 14:03:51,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:03:51,163 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 144 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-04-06 14:03:51,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 14:03:51,163 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [18160578] [2022-04-06 14:03:51,163 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [18160578] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 14:03:51,163 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 14:03:51,163 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 14:03:51,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057763137] [2022-04-06 14:03:51,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 14:03:51,164 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 14:03:51,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 14:03:51,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 14:03:51,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 14:03:51,164 INFO L87 Difference]: Start difference. First operand 1009 states and 1496 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:03:53,065 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:03:54,787 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:03:56,811 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:03:58,834 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:03:59,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 14:03:59,284 INFO L93 Difference]: Finished difference Result 2225 states and 3292 transitions. [2022-04-06 14:03:59,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 14:03:59,284 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 156 [2022-04-06 14:03:59,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 14:03:59,287 INFO L225 Difference]: With dead ends: 2225 [2022-04-06 14:03:59,287 INFO L226 Difference]: Without dead ends: 1242 [2022-04-06 14:03:59,288 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 14:03:59,289 INFO L913 BasicCegarLoop]: 130 mSDtfsCounter, 125 mSDsluCounter, 248 mSDsCounter, 0 mSdLazyCounter, 480 mSolverCounterSat, 59 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 480 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2022-04-06 14:03:59,289 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [125 Valid, 378 Invalid, 541 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 480 Invalid, 2 Unknown, 0 Unchecked, 8.1s Time] [2022-04-06 14:03:59,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1242 states. [2022-04-06 14:03:59,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1242 to 1079. [2022-04-06 14:03:59,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1079 states, 1074 states have (on average 1.4804469273743017) internal successors, (1590), 1074 states have internal predecessors, (1590), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:03:59,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1079 states to 1079 states and 1594 transitions. [2022-04-06 14:03:59,304 INFO L78 Accepts]: Start accepts. Automaton has 1079 states and 1594 transitions. Word has length 156 [2022-04-06 14:03:59,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 14:03:59,304 INFO L478 AbstractCegarLoop]: Abstraction has 1079 states and 1594 transitions. [2022-04-06 14:03:59,304 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:03:59,304 INFO L276 IsEmpty]: Start isEmpty. Operand 1079 states and 1594 transitions. [2022-04-06 14:03:59,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2022-04-06 14:03:59,305 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 14:03:59,306 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 14:03:59,306 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-04-06 14:03:59,306 INFO L403 AbstractCegarLoop]: === Iteration 42 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 14:03:59,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 14:03:59,306 INFO L85 PathProgramCache]: Analyzing trace with hash 72810464, now seen corresponding path program 1 times [2022-04-06 14:03:59,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 14:03:59,306 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146352318] [2022-04-06 14:03:59,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 14:03:59,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 14:03:59,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:03:59,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 14:03:59,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:03:59,393 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 142 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-04-06 14:03:59,393 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 14:03:59,393 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2146352318] [2022-04-06 14:03:59,393 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2146352318] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 14:03:59,393 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 14:03:59,393 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 14:03:59,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517176592] [2022-04-06 14:03:59,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 14:03:59,394 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 14:03:59,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 14:03:59,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 14:03:59,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 14:03:59,394 INFO L87 Difference]: Start difference. First operand 1079 states and 1594 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:04:01,412 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:04:01,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 14:04:01,788 INFO L93 Difference]: Finished difference Result 2171 states and 3207 transitions. [2022-04-06 14:04:01,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 14:04:01,788 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 157 [2022-04-06 14:04:01,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 14:04:01,791 INFO L225 Difference]: With dead ends: 2171 [2022-04-06 14:04:01,791 INFO L226 Difference]: Without dead ends: 1118 [2022-04-06 14:04:01,792 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 14:04:01,792 INFO L913 BasicCegarLoop]: 223 mSDtfsCounter, 41 mSDsluCounter, 348 mSDsCounter, 0 mSdLazyCounter, 467 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 571 SdHoareTripleChecker+Invalid, 475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 467 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-06 14:04:01,792 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [41 Valid, 571 Invalid, 475 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 467 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-04-06 14:04:01,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1118 states. [2022-04-06 14:04:01,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1118 to 1079. [2022-04-06 14:04:01,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1079 states, 1074 states have (on average 1.4785847299813781) internal successors, (1588), 1074 states have internal predecessors, (1588), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:04:01,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1079 states to 1079 states and 1592 transitions. [2022-04-06 14:04:01,806 INFO L78 Accepts]: Start accepts. Automaton has 1079 states and 1592 transitions. Word has length 157 [2022-04-06 14:04:01,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 14:04:01,807 INFO L478 AbstractCegarLoop]: Abstraction has 1079 states and 1592 transitions. [2022-04-06 14:04:01,807 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:04:01,807 INFO L276 IsEmpty]: Start isEmpty. Operand 1079 states and 1592 transitions. [2022-04-06 14:04:01,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2022-04-06 14:04:01,808 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 14:04:01,808 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] [2022-04-06 14:04:01,808 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-04-06 14:04:01,808 INFO L403 AbstractCegarLoop]: === Iteration 43 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 14:04:01,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 14:04:01,809 INFO L85 PathProgramCache]: Analyzing trace with hash -1360449574, now seen corresponding path program 1 times [2022-04-06 14:04:01,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 14:04:01,809 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925361895] [2022-04-06 14:04:01,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 14:04:01,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 14:04:01,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:04:01,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 14:04:01,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:04:01,926 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 146 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-04-06 14:04:01,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 14:04:01,926 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925361895] [2022-04-06 14:04:01,927 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1925361895] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 14:04:01,927 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 14:04:01,927 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 14:04:01,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14499364] [2022-04-06 14:04:01,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 14:04:01,927 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 14:04:01,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 14:04:01,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 14:04:01,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 14:04:01,928 INFO L87 Difference]: Start difference. First operand 1079 states and 1592 transitions. Second operand has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:04:03,535 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:04:05,886 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:04:07,914 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:04:08,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 14:04:08,275 INFO L93 Difference]: Finished difference Result 2165 states and 3196 transitions. [2022-04-06 14:04:08,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 14:04:08,275 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 157 [2022-04-06 14:04:08,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 14:04:08,278 INFO L225 Difference]: With dead ends: 2165 [2022-04-06 14:04:08,278 INFO L226 Difference]: Without dead ends: 1112 [2022-04-06 14:04:08,279 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 14:04:08,279 INFO L913 BasicCegarLoop]: 224 mSDtfsCounter, 35 mSDsluCounter, 349 mSDsCounter, 0 mSdLazyCounter, 467 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 573 SdHoareTripleChecker+Invalid, 476 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 467 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-04-06 14:04:08,280 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [35 Valid, 573 Invalid, 476 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 467 Invalid, 2 Unknown, 0 Unchecked, 6.3s Time] [2022-04-06 14:04:08,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1112 states. [2022-04-06 14:04:08,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1112 to 1079. [2022-04-06 14:04:08,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1079 states, 1074 states have (on average 1.4767225325884543) internal successors, (1586), 1074 states have internal predecessors, (1586), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:04:08,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1079 states to 1079 states and 1590 transitions. [2022-04-06 14:04:08,294 INFO L78 Accepts]: Start accepts. Automaton has 1079 states and 1590 transitions. Word has length 157 [2022-04-06 14:04:08,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 14:04:08,294 INFO L478 AbstractCegarLoop]: Abstraction has 1079 states and 1590 transitions. [2022-04-06 14:04:08,294 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:04:08,294 INFO L276 IsEmpty]: Start isEmpty. Operand 1079 states and 1590 transitions. [2022-04-06 14:04:08,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2022-04-06 14:04:08,296 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 14:04:08,296 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 14:04:08,296 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-04-06 14:04:08,296 INFO L403 AbstractCegarLoop]: === Iteration 44 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 14:04:08,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 14:04:08,296 INFO L85 PathProgramCache]: Analyzing trace with hash -195278239, now seen corresponding path program 1 times [2022-04-06 14:04:08,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 14:04:08,296 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133580801] [2022-04-06 14:04:08,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 14:04:08,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 14:04:08,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:04:08,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 14:04:08,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:04:08,395 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 141 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-04-06 14:04:08,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 14:04:08,395 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1133580801] [2022-04-06 14:04:08,395 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1133580801] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 14:04:08,395 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 14:04:08,395 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 14:04:08,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109305214] [2022-04-06 14:04:08,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 14:04:08,395 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 14:04:08,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 14:04:08,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 14:04:08,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 14:04:08,396 INFO L87 Difference]: Start difference. First operand 1079 states and 1590 transitions. Second operand has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:04:10,403 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:04:10,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 14:04:10,764 INFO L93 Difference]: Finished difference Result 2159 states and 3186 transitions. [2022-04-06 14:04:10,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 14:04:10,764 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 164 [2022-04-06 14:04:10,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 14:04:10,767 INFO L225 Difference]: With dead ends: 2159 [2022-04-06 14:04:10,767 INFO L226 Difference]: Without dead ends: 1106 [2022-04-06 14:04:10,768 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 14:04:10,768 INFO L913 BasicCegarLoop]: 246 mSDtfsCounter, 41 mSDsluCounter, 369 mSDsCounter, 0 mSdLazyCounter, 441 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 615 SdHoareTripleChecker+Invalid, 447 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 441 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-04-06 14:04:10,769 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [41 Valid, 615 Invalid, 447 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 441 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-04-06 14:04:10,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1106 states. [2022-04-06 14:04:10,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1106 to 1079. [2022-04-06 14:04:10,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1079 states, 1074 states have (on average 1.4748603351955307) internal successors, (1584), 1074 states have internal predecessors, (1584), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:04:10,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1079 states to 1079 states and 1588 transitions. [2022-04-06 14:04:10,782 INFO L78 Accepts]: Start accepts. Automaton has 1079 states and 1588 transitions. Word has length 164 [2022-04-06 14:04:10,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 14:04:10,782 INFO L478 AbstractCegarLoop]: Abstraction has 1079 states and 1588 transitions. [2022-04-06 14:04:10,782 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:04:10,782 INFO L276 IsEmpty]: Start isEmpty. Operand 1079 states and 1588 transitions. [2022-04-06 14:04:10,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-04-06 14:04:10,784 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 14:04:10,784 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 14:04:10,784 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-04-06 14:04:10,784 INFO L403 AbstractCegarLoop]: === Iteration 45 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 14:04:10,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 14:04:10,784 INFO L85 PathProgramCache]: Analyzing trace with hash -170870402, now seen corresponding path program 1 times [2022-04-06 14:04:10,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 14:04:10,784 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317880676] [2022-04-06 14:04:10,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 14:04:10,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 14:04:10,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:04:10,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 14:04:10,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:04:10,867 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2022-04-06 14:04:10,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 14:04:10,867 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1317880676] [2022-04-06 14:04:10,867 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1317880676] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 14:04:10,867 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 14:04:10,867 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-06 14:04:10,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125641830] [2022-04-06 14:04:10,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 14:04:10,867 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 14:04:10,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 14:04:10,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 14:04:10,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 14:04:10,868 INFO L87 Difference]: Start difference. First operand 1079 states and 1588 transitions. Second operand has 4 states, 4 states have (on average 24.0) internal successors, (96), 3 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) [2022-04-06 14:04:12,417 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:04:14,441 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:04:16,417 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:04:16,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 14:04:16,669 INFO L93 Difference]: Finished difference Result 2159 states and 3183 transitions. [2022-04-06 14:04:16,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 14:04:16,670 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.0) internal successors, (96), 3 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 165 [2022-04-06 14:04:16,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 14:04:16,673 INFO L225 Difference]: With dead ends: 2159 [2022-04-06 14:04:16,673 INFO L226 Difference]: Without dead ends: 1106 [2022-04-06 14:04:16,674 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 14:04:16,674 INFO L913 BasicCegarLoop]: 233 mSDtfsCounter, 15 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 269 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 427 SdHoareTripleChecker+Invalid, 273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 269 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-04-06 14:04:16,674 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 427 Invalid, 273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 269 Invalid, 1 Unknown, 0 Unchecked, 5.8s Time] [2022-04-06 14:04:16,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1106 states. [2022-04-06 14:04:16,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1106 to 1106. [2022-04-06 14:04:16,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1106 states, 1101 states have (on average 1.4704813805631245) internal successors, (1619), 1101 states have internal predecessors, (1619), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:04:16,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1106 states to 1106 states and 1623 transitions. [2022-04-06 14:04:16,688 INFO L78 Accepts]: Start accepts. Automaton has 1106 states and 1623 transitions. Word has length 165 [2022-04-06 14:04:16,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 14:04:16,688 INFO L478 AbstractCegarLoop]: Abstraction has 1106 states and 1623 transitions. [2022-04-06 14:04:16,688 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.0) internal successors, (96), 3 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) [2022-04-06 14:04:16,688 INFO L276 IsEmpty]: Start isEmpty. Operand 1106 states and 1623 transitions. [2022-04-06 14:04:16,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-04-06 14:04:16,689 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 14:04:16,690 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 14:04:16,690 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-04-06 14:04:16,690 INFO L403 AbstractCegarLoop]: === Iteration 46 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 14:04:16,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 14:04:16,690 INFO L85 PathProgramCache]: Analyzing trace with hash -1064805313, now seen corresponding path program 1 times [2022-04-06 14:04:16,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 14:04:16,690 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [102866990] [2022-04-06 14:04:16,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 14:04:16,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 14:04:16,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:04:16,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 14:04:16,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:04:16,805 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2022-04-06 14:04:16,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 14:04:16,805 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [102866990] [2022-04-06 14:04:16,805 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [102866990] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 14:04:16,805 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 14:04:16,806 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-06 14:04:16,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [126080422] [2022-04-06 14:04:16,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 14:04:16,806 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 14:04:16,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 14:04:16,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 14:04:16,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 14:04:16,806 INFO L87 Difference]: Start difference. First operand 1106 states and 1623 transitions. Second operand has 4 states, 4 states have (on average 20.0) internal successors, (80), 3 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) [2022-04-06 14:04:19,358 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:04:21,069 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:04:21,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 14:04:21,310 INFO L93 Difference]: Finished difference Result 2188 states and 3219 transitions. [2022-04-06 14:04:21,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 14:04:21,310 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 3 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 165 [2022-04-06 14:04:21,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 14:04:21,316 INFO L225 Difference]: With dead ends: 2188 [2022-04-06 14:04:21,316 INFO L226 Difference]: Without dead ends: 1108 [2022-04-06 14:04:21,317 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 14:04:21,317 INFO L913 BasicCegarLoop]: 221 mSDtfsCounter, 4 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 406 SdHoareTripleChecker+Invalid, 258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-04-06 14:04:21,318 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 406 Invalid, 258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 255 Invalid, 1 Unknown, 0 Unchecked, 4.5s Time] [2022-04-06 14:04:21,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1108 states. [2022-04-06 14:04:21,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1108 to 1108. [2022-04-06 14:04:21,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1108 states, 1103 states have (on average 1.4696282864913872) internal successors, (1621), 1103 states have internal predecessors, (1621), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:04:21,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1108 states to 1108 states and 1625 transitions. [2022-04-06 14:04:21,332 INFO L78 Accepts]: Start accepts. Automaton has 1108 states and 1625 transitions. Word has length 165 [2022-04-06 14:04:21,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 14:04:21,332 INFO L478 AbstractCegarLoop]: Abstraction has 1108 states and 1625 transitions. [2022-04-06 14:04:21,332 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 3 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) [2022-04-06 14:04:21,332 INFO L276 IsEmpty]: Start isEmpty. Operand 1108 states and 1625 transitions. [2022-04-06 14:04:21,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2022-04-06 14:04:21,333 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 14:04:21,333 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 14:04:21,333 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-04-06 14:04:21,333 INFO L403 AbstractCegarLoop]: === Iteration 47 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 14:04:21,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 14:04:21,334 INFO L85 PathProgramCache]: Analyzing trace with hash -1588960868, now seen corresponding path program 1 times [2022-04-06 14:04:21,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 14:04:21,334 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803834009] [2022-04-06 14:04:21,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 14:04:21,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 14:04:21,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:04:21,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 14:04:21,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:04:21,439 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 156 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-04-06 14:04:21,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 14:04:21,439 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803834009] [2022-04-06 14:04:21,439 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1803834009] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 14:04:21,439 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 14:04:21,439 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 14:04:21,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054251478] [2022-04-06 14:04:21,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 14:04:21,440 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 14:04:21,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 14:04:21,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 14:04:21,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 14:04:21,440 INFO L87 Difference]: Start difference. First operand 1108 states and 1625 transitions. Second operand has 5 states, 5 states have (on average 27.2) internal successors, (136), 4 states have internal predecessors, (136), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:04:22,464 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:04:24,955 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:04:26,978 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:04:27,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 14:04:27,408 INFO L93 Difference]: Finished difference Result 2284 states and 3346 transitions. [2022-04-06 14:04:27,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 14:04:27,408 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.2) internal successors, (136), 4 states have internal predecessors, (136), 1 states have call successors, (3), 2 states have 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 [2022-04-06 14:04:27,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 14:04:27,411 INFO L225 Difference]: With dead ends: 2284 [2022-04-06 14:04:27,411 INFO L226 Difference]: Without dead ends: 1204 [2022-04-06 14:04:27,412 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 14:04:27,412 INFO L913 BasicCegarLoop]: 233 mSDtfsCounter, 76 mSDsluCounter, 355 mSDsCounter, 0 mSdLazyCounter, 551 mSolverCounterSat, 9 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 588 SdHoareTripleChecker+Invalid, 562 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 551 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-04-06 14:04:27,412 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [76 Valid, 588 Invalid, 562 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 551 Invalid, 2 Unknown, 0 Unchecked, 5.9s Time] [2022-04-06 14:04:27,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1204 states. [2022-04-06 14:04:27,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1204 to 1108. [2022-04-06 14:04:27,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1108 states, 1103 states have (on average 1.4678150498640072) internal successors, (1619), 1103 states have internal predecessors, (1619), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:04:27,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1108 states to 1108 states and 1623 transitions. [2022-04-06 14:04:27,443 INFO L78 Accepts]: Start accepts. Automaton has 1108 states and 1623 transitions. Word has length 166 [2022-04-06 14:04:27,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 14:04:27,444 INFO L478 AbstractCegarLoop]: Abstraction has 1108 states and 1623 transitions. [2022-04-06 14:04:27,444 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.2) internal successors, (136), 4 states have internal predecessors, (136), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:04:27,444 INFO L276 IsEmpty]: Start isEmpty. Operand 1108 states and 1623 transitions. [2022-04-06 14:04:27,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2022-04-06 14:04:27,445 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 14:04:27,445 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] [2022-04-06 14:04:27,445 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-04-06 14:04:27,445 INFO L403 AbstractCegarLoop]: === Iteration 48 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 14:04:27,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 14:04:27,446 INFO L85 PathProgramCache]: Analyzing trace with hash 1891628692, now seen corresponding path program 1 times [2022-04-06 14:04:27,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 14:04:27,446 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102915429] [2022-04-06 14:04:27,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 14:04:27,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 14:04:27,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:04:27,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 14:04:27,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:04:27,752 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2022-04-06 14:04:27,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 14:04:27,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2102915429] [2022-04-06 14:04:27,753 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2102915429] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 14:04:27,753 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 14:04:27,753 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-04-06 14:04:27,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149031601] [2022-04-06 14:04:27,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 14:04:27,753 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-04-06 14:04:27,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 14:04:27,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-04-06 14:04:27,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-04-06 14:04:27,754 INFO L87 Difference]: Start difference. First operand 1108 states and 1623 transitions. Second operand has 7 states, 6 states have (on average 12.666666666666666) internal successors, (76), 5 states have internal predecessors, (76), 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) [2022-04-06 14:04:29,397 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:04:31,421 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:04:33,702 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:04:35,728 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:04:37,753 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 14:04:38,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 14:04:38,207 INFO L93 Difference]: Finished difference Result 2209 states and 3238 transitions. [2022-04-06 14:04:38,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-04-06 14:04:38,208 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 12.666666666666666) internal successors, (76), 5 states have internal predecessors, (76), 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 174 [2022-04-06 14:04:38,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 14:04:38,210 INFO L225 Difference]: With dead ends: 2209 [2022-04-06 14:04:38,210 INFO L226 Difference]: Without dead ends: 1108 [2022-04-06 14:04:38,211 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 [2022-04-06 14:04:38,212 INFO L913 BasicCegarLoop]: 219 mSDtfsCounter, 7 mSDsluCounter, 672 mSDsCounter, 0 mSdLazyCounter, 452 mSolverCounterSat, 4 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 891 SdHoareTripleChecker+Invalid, 459 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 452 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.4s IncrementalHoareTripleChecker+Time [2022-04-06 14:04:38,212 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 891 Invalid, 459 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 452 Invalid, 3 Unknown, 0 Unchecked, 10.4s Time] [2022-04-06 14:04:38,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1108 states. [2022-04-06 14:04:38,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1108 to 1108. [2022-04-06 14:04:38,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1108 states, 1103 states have (on average 1.4669084315503174) internal successors, (1618), 1103 states have internal predecessors, (1618), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:04:38,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1108 states to 1108 states and 1622 transitions. [2022-04-06 14:04:38,237 INFO L78 Accepts]: Start accepts. Automaton has 1108 states and 1622 transitions. Word has length 174 [2022-04-06 14:04:38,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 14:04:38,237 INFO L478 AbstractCegarLoop]: Abstraction has 1108 states and 1622 transitions. [2022-04-06 14:04:38,237 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 12.666666666666666) internal successors, (76), 5 states have internal predecessors, (76), 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) [2022-04-06 14:04:38,237 INFO L276 IsEmpty]: Start isEmpty. Operand 1108 states and 1622 transitions. [2022-04-06 14:04:38,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2022-04-06 14:04:38,238 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 14:04:38,238 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] [2022-04-06 14:04:38,239 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-04-06 14:04:38,239 INFO L403 AbstractCegarLoop]: === Iteration 49 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 14:04:38,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 14:04:38,239 INFO L85 PathProgramCache]: Analyzing trace with hash 1546712947, now seen corresponding path program 1 times [2022-04-06 14:04:38,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 14:04:38,239 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132952228] [2022-04-06 14:04:38,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 14:04:38,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 14:04:38,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:04:38,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 14:04:38,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:04:38,925 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 14 proven. 169 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-04-06 14:04:38,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 14:04:38,925 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132952228] [2022-04-06 14:04:38,925 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1132952228] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-06 14:04:38,925 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1022607026] [2022-04-06 14:04:38,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 14:04:38,926 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-06 14:04:38,926 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-06 14:04:38,936 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-06 14:04:38,938 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-04-06 14:04:39,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:04:39,820 INFO L263 TraceCheckSpWp]: Trace formula consists of 1149 conjuncts, 189 conjunts are in the unsatisfiable core [2022-04-06 14:04:39,838 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-06 14:04:39,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 14:04:39,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 14:04:39,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 14:04:39,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 14:04:39,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 14:04:39,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 14:04:39,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 14:04:39,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 14:04:39,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 14:04:39,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 14:04:39,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 14:04:39,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 14:04:39,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 14:04:39,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 14:04:39,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 14:04:39,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 14:04:39,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 14:04:39,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 14:04:39,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 14:04:39,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 14:04:39,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 14:04:39,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 14:04:39,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 14:04:39,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 14:04:39,974 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 19 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10547 treesize of output 1500