/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-7390193 [2022-04-05 10:00:45,015 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-05 10:00:45,017 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-05 10:00:45,052 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-05 10:00:45,053 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-05 10:00:45,054 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-05 10:00:45,057 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-05 10:00:45,063 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-05 10:00:45,065 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-05 10:00:45,071 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-05 10:00:45,072 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-05 10:00:45,073 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-05 10:00:45,074 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-05 10:00:45,076 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-05 10:00:45,077 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-05 10:00:45,078 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-05 10:00:45,080 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-05 10:00:45,082 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-05 10:00:45,086 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-05 10:00:45,089 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-05 10:00:45,090 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-05 10:00:45,090 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-05 10:00:45,091 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-05 10:00:45,092 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-05 10:00:45,093 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-05 10:00:45,095 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-04-05 10:00:45,095 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-04-05 10:00:45,095 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-04-05 10:00:45,096 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-04-05 10:00:45,096 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-04-05 10:00:45,097 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2022-04-05 10:00:45,100 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-05 10:00:45,101 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-05 10:00:45,107 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-05 10:00:45,108 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/loopacceleration/qvasr/qvasr_64.epf [2022-04-05 10:00:45,136 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-05 10:00:45,136 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-05 10:00:45,137 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-04-05 10:00:45,137 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-04-05 10:00:45,138 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-04-05 10:00:45,138 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-04-05 10:00:45,138 INFO L138 SettingsManager]: * Use SBE=true [2022-04-05 10:00:45,138 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-05 10:00:45,139 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-05 10:00:45,139 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-05 10:00:45,139 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-05 10:00:45,140 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-05 10:00:45,140 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-05 10:00:45,140 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-05 10:00:45,140 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-05 10:00:45,140 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-05 10:00:45,140 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-05 10:00:45,140 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-05 10:00:45,140 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-05 10:00:45,141 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-05 10:00:45,141 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-05 10:00:45,141 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-04-05 10:00:45,141 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-04-05 10:00:45,141 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-04-05 10:00:45,141 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-04-05 10:00:45,142 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-05 10:00:45,142 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-04-05 10:00:45,142 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-04-05 10:00:45,143 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-04-05 10:00:45,143 INFO L138 SettingsManager]: * TransformationType=LOOP_ACCELERATION_QVASR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-04-05 10:00:45,358 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-05 10:00:45,377 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-05 10:00:45,379 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-05 10:00:45,380 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-05 10:00:45,382 INFO L275 PluginConnector]: CDTParser initialized [2022-04-05 10:00:45,383 INFO L432 ainManager$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 [2022-04-05 10:00:45,437 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b9e27f895/c6460bc6727346fea0bff9551b7386ed/FLAGd64275438 [2022-04-05 10:00:45,902 INFO L306 CDTParser]: Found 1 translation units. [2022-04-05 10:00:45,902 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.14.i.cil-2.c [2022-04-05 10:00:45,935 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b9e27f895/c6460bc6727346fea0bff9551b7386ed/FLAGd64275438 [2022-04-05 10:00:46,177 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b9e27f895/c6460bc6727346fea0bff9551b7386ed [2022-04-05 10:00:46,179 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-05 10:00:46,180 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-04-05 10:00:46,181 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-05 10:00:46,181 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-05 10:00:46,184 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-05 10:00:46,184 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.04 10:00:46" (1/1) ... [2022-04-05 10:00:46,185 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67d4f756 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 10:00:46, skipping insertion in model container [2022-04-05 10:00:46,185 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.04 10:00:46" (1/1) ... [2022-04-05 10:00:46,191 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-05 10:00:46,234 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-05 10:00:46,589 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] [2022-04-05 10:00:46,598 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-05 10:00:46,609 INFO L203 MainTranslator]: Completed pre-run [2022-04-05 10:00:46,693 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] [2022-04-05 10:00:46,708 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-05 10:00:46,723 INFO L208 MainTranslator]: Completed translation [2022-04-05 10:00:46,723 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 10:00:46 WrapperNode [2022-04-05 10:00:46,724 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-05 10:00:46,725 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-05 10:00:46,726 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-05 10:00:46,726 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-05 10:00:46,736 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 10:00:46" (1/1) ... [2022-04-05 10:00:46,736 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 10:00:46" (1/1) ... [2022-04-05 10:00:46,770 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 10:00:46" (1/1) ... [2022-04-05 10:00:46,770 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 10:00:46" (1/1) ... [2022-04-05 10:00:46,833 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 10:00:46" (1/1) ... [2022-04-05 10:00:46,848 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 10:00:46" (1/1) ... [2022-04-05 10:00:46,851 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 10:00:46" (1/1) ... [2022-04-05 10:00:46,856 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-05 10:00:46,857 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-05 10:00:46,857 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-05 10:00:46,857 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-05 10:00:46,866 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 10:00:46" (1/1) ... [2022-04-05 10:00:46,872 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-05 10:00:46,887 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-05 10:00:46,900 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-04-05 10:00:46,926 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-04-05 10:00:46,944 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-04-05 10:00:46,944 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-05 10:00:46,945 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-04-05 10:00:46,945 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_server_method [2022-04-05 10:00:46,945 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_server_method [2022-04-05 10:00:46,945 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-04-05 10:00:46,945 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-04-05 10:00:46,946 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-04-05 10:00:46,947 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-04-05 10:00:46,947 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-04-05 10:00:46,947 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-04-05 10:00:46,947 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-04-05 10:00:46,947 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-04-05 10:00:46,947 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-05 10:00:46,947 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-04-05 10:00:46,947 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-04-05 10:00:46,947 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-04-05 10:00:46,948 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-04-05 10:00:46,948 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-04-05 10:00:46,948 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-04-05 10:00:46,948 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_server_method [2022-04-05 10:00:46,948 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-04-05 10:00:46,948 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-04-05 10:00:46,948 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_server_method [2022-04-05 10:00:46,948 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-04-05 10:00:46,948 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-04-05 10:00:46,948 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-04-05 10:00:46,949 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-04-05 10:00:46,949 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-05 10:00:46,949 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-04-05 10:00:46,949 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-05 10:00:46,949 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-04-05 10:00:46,949 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-04-05 10:00:46,949 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-04-05 10:00:46,949 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-05 10:00:46,949 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-05 10:00:46,949 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-04-05 10:00:46,949 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-04-05 10:00:46,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-04-05 10:00:46,950 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-04-05 10:00:46,950 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-05 10:00:47,123 INFO L234 CfgBuilder]: Building ICFG [2022-04-05 10:00:47,124 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-05 10:00:48,146 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-04-05 10:00:48,627 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2022-04-05 10:00:48,627 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2022-04-05 10:00:48,639 INFO L275 CfgBuilder]: Performing block encoding [2022-04-05 10:00:48,646 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-05 10:00:48,646 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-04-05 10:00:48,648 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.04 10:00:48 BoogieIcfgContainer [2022-04-05 10:00:48,648 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-05 10:00:48,649 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-04-05 10:00:48,649 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-04-05 10:00:48,650 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-04-05 10:00:48,652 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.04 10:00:48" (1/1) ... [2022-04-05 10:00:48,654 INFO L168 ansformationObserver]: Applying ICFG transformation LOOP_ACCELERATION_QVASR [2022-04-05 10:00:48,698 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 05.04 10:00:48 BasicIcfg [2022-04-05 10:00:48,698 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-04-05 10:00:48,701 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-05 10:00:48,701 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-05 10:00:48,704 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-05 10:00:48,704 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.04 10:00:46" (1/4) ... [2022-04-05 10:00:48,707 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@690f5da2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.04 10:00:48, skipping insertion in model container [2022-04-05 10:00:48,707 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 10:00:46" (2/4) ... [2022-04-05 10:00:48,707 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@690f5da2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.04 10:00:48, skipping insertion in model container [2022-04-05 10:00:48,707 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.04 10:00:48" (3/4) ... [2022-04-05 10:00:48,709 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@690f5da2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.04 10:00:48, skipping insertion in model container [2022-04-05 10:00:48,709 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 05.04 10:00:48" (4/4) ... [2022-04-05 10:00:48,710 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr.blast.14.i.cil-2.cqvasr [2022-04-05 10:00:48,718 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-04-05 10:00:48,718 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-04-05 10:00:48,759 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-05 10:00:48,767 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP [2022-04-05 10:00:48,767 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-04-05 10:00:48,800 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) [2022-04-05 10:00:48,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-04-05 10:00:48,811 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:00:48,812 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 10:00:48,812 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:00:48,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:00:48,820 INFO L85 PathProgramCache]: Analyzing trace with hash -1842589219, now seen corresponding path program 1 times [2022-04-05 10:00:48,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:00:48,828 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [19331976] [2022-04-05 10:00:48,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:00:48,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:00:49,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:00:49,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:00:49,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:00:49,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 10:00:49,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:00:49,335 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [19331976] [2022-04-05 10:00:49,336 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [19331976] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 10:00:49,336 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 10:00:49,336 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 10:00:49,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508162923] [2022-04-05 10:00:49,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 10:00:49,343 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 10:00:49,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 10:00:49,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 10:00:49,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 10:00:49,378 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) [2022-04-05 10:00:51,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 10:00:51,535 INFO L93 Difference]: Finished difference Result 344 states and 580 transitions. [2022-04-05 10:00:51,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 10:00:51,537 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 49 [2022-04-05 10:00:51,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 10:00:51,545 INFO L225 Difference]: With dead ends: 344 [2022-04-05 10:00:51,546 INFO L226 Difference]: Without dead ends: 175 [2022-04-05 10:00:51,549 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 10:00:51,559 INFO L913 BasicCegarLoop]: 239 mSDtfsCounter, 34 mSDsluCounter, 398 mSDsCounter, 0 mSdLazyCounter, 425 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s 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, 2.1s IncrementalHoareTripleChecker+Time [2022-04-05 10:00:51,561 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 637 Invalid, 436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 425 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-04-05 10:00:51,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2022-04-05 10:00:51,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 158. [2022-04-05 10:00:51,638 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) [2022-04-05 10:00:51,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 244 transitions. [2022-04-05 10:00:51,640 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 244 transitions. Word has length 49 [2022-04-05 10:00:51,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 10:00:51,641 INFO L478 AbstractCegarLoop]: Abstraction has 158 states and 244 transitions. [2022-04-05 10:00:51,641 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:00:51,641 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 244 transitions. [2022-04-05 10:00:51,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-04-05 10:00:51,643 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:00:51,643 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 10:00:51,644 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-05 10:00:51,644 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:00:51,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:00:51,644 INFO L85 PathProgramCache]: Analyzing trace with hash -1221390176, now seen corresponding path program 1 times [2022-04-05 10:00:51,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:00:51,645 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654952332] [2022-04-05 10:00:51,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:00:51,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:00:51,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:00:51,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:00:51,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:00:51,875 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 10:00:51,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:00:51,879 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1654952332] [2022-04-05 10:00:51,879 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1654952332] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 10:00:51,879 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 10:00:51,879 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 10:00:51,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979036274] [2022-04-05 10:00:51,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 10:00:51,880 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 10:00:51,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 10:00:51,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 10:00:51,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 10:00:51,881 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) [2022-04-05 10:00:54,340 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:00:56,367 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:00:58,082 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:00:58,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 10:00:58,830 INFO L93 Difference]: Finished difference Result 413 states and 644 transitions. [2022-04-05 10:00:58,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 10:00:58,831 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 62 [2022-04-05 10:00:58,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 10:00:58,834 INFO L225 Difference]: With dead ends: 413 [2022-04-05 10:00:58,834 INFO L226 Difference]: Without dead ends: 281 [2022-04-05 10:00:58,835 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 10:00:58,836 INFO L913 BasicCegarLoop]: 281 mSDtfsCounter, 155 mSDsluCounter, 399 mSDsCounter, 0 mSdLazyCounter, 642 mSolverCounterSat, 46 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 680 SdHoareTripleChecker+Invalid, 690 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 642 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2022-04-05 10:00:58,836 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [155 Valid, 680 Invalid, 690 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 642 Invalid, 2 Unknown, 0 Unchecked, 6.9s Time] [2022-04-05 10:00:58,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2022-04-05 10:00:58,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 174. [2022-04-05 10:00:58,849 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) [2022-04-05 10:00:58,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 269 transitions. [2022-04-05 10:00:58,850 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 269 transitions. Word has length 62 [2022-04-05 10:00:58,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 10:00:58,851 INFO L478 AbstractCegarLoop]: Abstraction has 174 states and 269 transitions. [2022-04-05 10:00:58,851 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:00:58,851 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 269 transitions. [2022-04-05 10:00:58,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-04-05 10:00:58,853 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:00:58,853 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 10:00:58,853 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-05 10:00:58,853 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:00:58,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:00:58,854 INFO L85 PathProgramCache]: Analyzing trace with hash -1316073597, now seen corresponding path program 1 times [2022-04-05 10:00:58,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:00:58,854 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503725320] [2022-04-05 10:00:58,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:00:58,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:00:58,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:00:59,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:00:59,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:00:59,026 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 10:00:59,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:00:59,026 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [503725320] [2022-04-05 10:00:59,027 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [503725320] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 10:00:59,027 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 10:00:59,027 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 10:00:59,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196586652] [2022-04-05 10:00:59,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 10:00:59,028 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 10:00:59,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 10:00:59,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 10:00:59,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 10:00:59,029 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) [2022-04-05 10:01:00,061 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:01:02,739 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:01:04,760 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:01:05,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 10:01:05,235 INFO L93 Difference]: Finished difference Result 338 states and 521 transitions. [2022-04-05 10:01:05,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 10:01:05,236 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 63 [2022-04-05 10:01:05,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 10:01:05,238 INFO L225 Difference]: With dead ends: 338 [2022-04-05 10:01:05,238 INFO L226 Difference]: Without dead ends: 190 [2022-04-05 10:01:05,239 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 10:01:05,240 INFO L913 BasicCegarLoop]: 198 mSDtfsCounter, 28 mSDsluCounter, 317 mSDsCounter, 0 mSdLazyCounter, 370 mSolverCounterSat, 9 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s 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, 6.2s IncrementalHoareTripleChecker+Time [2022-04-05 10:01:05,240 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 515 Invalid, 381 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 370 Invalid, 2 Unknown, 0 Unchecked, 6.2s Time] [2022-04-05 10:01:05,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2022-04-05 10:01:05,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 174. [2022-04-05 10:01:05,249 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) [2022-04-05 10:01:05,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 268 transitions. [2022-04-05 10:01:05,250 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 268 transitions. Word has length 63 [2022-04-05 10:01:05,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 10:01:05,250 INFO L478 AbstractCegarLoop]: Abstraction has 174 states and 268 transitions. [2022-04-05 10:01:05,250 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:01:05,250 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 268 transitions. [2022-04-05 10:01:05,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-04-05 10:01:05,259 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:01:05,259 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 10:01:05,260 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-04-05 10:01:05,260 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:01:05,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:01:05,260 INFO L85 PathProgramCache]: Analyzing trace with hash -528481437, now seen corresponding path program 1 times [2022-04-05 10:01:05,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:01:05,261 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076043319] [2022-04-05 10:01:05,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:01:05,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:01:05,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:01:05,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:01:05,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:01:05,414 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 10:01:05,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:01:05,416 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076043319] [2022-04-05 10:01:05,416 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1076043319] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 10:01:05,417 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 10:01:05,417 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 10:01:05,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791439186] [2022-04-05 10:01:05,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 10:01:05,417 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 10:01:05,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 10:01:05,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 10:01:05,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 10:01:05,418 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) [2022-04-05 10:01:07,433 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:01:07,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 10:01:07,859 INFO L93 Difference]: Finished difference Result 338 states and 520 transitions. [2022-04-05 10:01:07,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 10:01:07,860 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 63 [2022-04-05 10:01:07,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 10:01:07,861 INFO L225 Difference]: With dead ends: 338 [2022-04-05 10:01:07,861 INFO L226 Difference]: Without dead ends: 190 [2022-04-05 10:01:07,862 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 10:01:07,863 INFO L913 BasicCegarLoop]: 198 mSDtfsCounter, 26 mSDsluCounter, 317 mSDsCounter, 0 mSdLazyCounter, 368 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 515 SdHoareTripleChecker+Invalid, 378 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 368 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-05 10:01:07,863 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [26 Valid, 515 Invalid, 378 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 368 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-04-05 10:01:07,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2022-04-05 10:01:07,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 174. [2022-04-05 10:01:07,870 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) [2022-04-05 10:01:07,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 267 transitions. [2022-04-05 10:01:07,877 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 267 transitions. Word has length 63 [2022-04-05 10:01:07,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 10:01:07,877 INFO L478 AbstractCegarLoop]: Abstraction has 174 states and 267 transitions. [2022-04-05 10:01:07,878 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:01:07,878 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 267 transitions. [2022-04-05 10:01:07,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-04-05 10:01:07,879 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:01:07,879 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 10:01:07,880 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-04-05 10:01:07,880 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:01:07,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:01:07,880 INFO L85 PathProgramCache]: Analyzing trace with hash 1238531875, now seen corresponding path program 1 times [2022-04-05 10:01:07,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:01:07,881 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947437166] [2022-04-05 10:01:07,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:01:07,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:01:07,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:01:08,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:01:08,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:01:08,024 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 10:01:08,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:01:08,025 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [947437166] [2022-04-05 10:01:08,025 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [947437166] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 10:01:08,025 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 10:01:08,025 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 10:01:08,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14866448] [2022-04-05 10:01:08,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 10:01:08,026 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 10:01:08,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 10:01:08,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 10:01:08,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 10:01:08,026 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) [2022-04-05 10:01:10,610 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:01:12,063 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:01:13,229 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:01:13,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 10:01:13,790 INFO L93 Difference]: Finished difference Result 445 states and 693 transitions. [2022-04-05 10:01:13,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 10:01:13,791 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 63 [2022-04-05 10:01:13,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 10:01:13,793 INFO L225 Difference]: With dead ends: 445 [2022-04-05 10:01:13,793 INFO L226 Difference]: Without dead ends: 297 [2022-04-05 10:01:13,794 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 10:01:13,794 INFO L913 BasicCegarLoop]: 127 mSDtfsCounter, 154 mSDsluCounter, 245 mSDsCounter, 0 mSdLazyCounter, 486 mSolverCounterSat, 64 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s 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, 5.7s IncrementalHoareTripleChecker+Time [2022-04-05 10:01:13,795 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [154 Valid, 372 Invalid, 551 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 486 Invalid, 1 Unknown, 0 Unchecked, 5.7s Time] [2022-04-05 10:01:13,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 297 states. [2022-04-05 10:01:13,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 297 to 191. [2022-04-05 10:01:13,803 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) [2022-04-05 10:01:13,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 294 transitions. [2022-04-05 10:01:13,810 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 294 transitions. Word has length 63 [2022-04-05 10:01:13,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 10:01:13,810 INFO L478 AbstractCegarLoop]: Abstraction has 191 states and 294 transitions. [2022-04-05 10:01:13,810 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:01:13,811 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 294 transitions. [2022-04-05 10:01:13,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-04-05 10:01:13,811 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:01:13,812 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 10:01:13,812 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-04-05 10:01:13,812 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:01:13,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:01:13,813 INFO L85 PathProgramCache]: Analyzing trace with hash 780655619, now seen corresponding path program 1 times [2022-04-05 10:01:13,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:01:13,813 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105581060] [2022-04-05 10:01:13,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:01:13,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:01:13,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:01:13,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:01:13,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:01:13,975 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 10:01:13,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:01:13,977 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1105581060] [2022-04-05 10:01:13,977 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1105581060] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 10:01:13,977 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 10:01:13,977 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 10:01:13,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529484195] [2022-04-05 10:01:13,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 10:01:13,978 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 10:01:13,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 10:01:13,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 10:01:13,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 10:01:13,979 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) [2022-04-05 10:01:15,443 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:01:17,464 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:01:19,488 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:01:20,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 10:01:20,404 INFO L93 Difference]: Finished difference Result 369 states and 571 transitions. [2022-04-05 10:01:20,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 10:01:20,404 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 63 [2022-04-05 10:01:20,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 10:01:20,405 INFO L225 Difference]: With dead ends: 369 [2022-04-05 10:01:20,406 INFO L226 Difference]: Without dead ends: 204 [2022-04-05 10:01:20,406 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 10:01:20,407 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 [2022-04-05 10:01:20,407 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] [2022-04-05 10:01:20,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2022-04-05 10:01:20,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 191. [2022-04-05 10:01:20,416 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) [2022-04-05 10:01:20,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 293 transitions. [2022-04-05 10:01:20,417 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 293 transitions. Word has length 63 [2022-04-05 10:01:20,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 10:01:20,417 INFO L478 AbstractCegarLoop]: Abstraction has 191 states and 293 transitions. [2022-04-05 10:01:20,417 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:01:20,417 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 293 transitions. [2022-04-05 10:01:20,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-04-05 10:01:20,418 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:01:20,418 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 10:01:20,418 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-04-05 10:01:20,418 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:01:20,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:01:20,419 INFO L85 PathProgramCache]: Analyzing trace with hash 881220224, now seen corresponding path program 1 times [2022-04-05 10:01:20,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:01:20,419 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634319996] [2022-04-05 10:01:20,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:01:20,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:01:20,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:01:20,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:01:20,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:01:20,564 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 10:01:20,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:01:20,564 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [634319996] [2022-04-05 10:01:20,564 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [634319996] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 10:01:20,564 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 10:01:20,564 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 10:01:20,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887393438] [2022-04-05 10:01:20,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 10:01:20,566 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 10:01:20,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 10:01:20,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 10:01:20,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 10:01:20,567 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) [2022-04-05 10:01:22,286 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:01:24,307 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:01:26,334 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:01:28,367 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:01:28,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 10:01:28,762 INFO L93 Difference]: Finished difference Result 369 states and 570 transitions. [2022-04-05 10:01:28,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 10:01:28,763 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 64 [2022-04-05 10:01:28,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 10:01:28,764 INFO L225 Difference]: With dead ends: 369 [2022-04-05 10:01:28,764 INFO L226 Difference]: Without dead ends: 204 [2022-04-05 10:01:28,764 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 10:01:28,765 INFO L913 BasicCegarLoop]: 201 mSDtfsCounter, 22 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 363 mSolverCounterSat, 8 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 521 SdHoareTripleChecker+Invalid, 374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 363 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2022-04-05 10:01:28,765 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 521 Invalid, 374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 363 Invalid, 3 Unknown, 0 Unchecked, 8.2s Time] [2022-04-05 10:01:28,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2022-04-05 10:01:28,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 191. [2022-04-05 10:01:28,772 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) [2022-04-05 10:01:28,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 292 transitions. [2022-04-05 10:01:28,773 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 292 transitions. Word has length 64 [2022-04-05 10:01:28,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 10:01:28,773 INFO L478 AbstractCegarLoop]: Abstraction has 191 states and 292 transitions. [2022-04-05 10:01:28,774 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:01:28,774 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 292 transitions. [2022-04-05 10:01:28,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-04-05 10:01:28,774 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:01:28,775 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 10:01:28,775 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-04-05 10:01:28,775 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:01:28,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:01:28,775 INFO L85 PathProgramCache]: Analyzing trace with hash 1193876863, now seen corresponding path program 1 times [2022-04-05 10:01:28,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:01:28,776 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235759479] [2022-04-05 10:01:28,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:01:28,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:01:28,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:01:28,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:01:28,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:01:28,877 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 10:01:28,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:01:28,878 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235759479] [2022-04-05 10:01:28,878 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [235759479] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 10:01:28,878 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 10:01:28,878 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 10:01:28,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079571306] [2022-04-05 10:01:28,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 10:01:28,879 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 10:01:28,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 10:01:28,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 10:01:28,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 10:01:28,880 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) [2022-04-05 10:01:30,893 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:01:31,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 10:01:31,444 INFO L93 Difference]: Finished difference Result 462 states and 717 transitions. [2022-04-05 10:01:31,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 10:01:31,444 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 65 [2022-04-05 10:01:31,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 10:01:31,446 INFO L225 Difference]: With dead ends: 462 [2022-04-05 10:01:31,446 INFO L226 Difference]: Without dead ends: 297 [2022-04-05 10:01:31,447 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 10:01:31,447 INFO L913 BasicCegarLoop]: 127 mSDtfsCounter, 156 mSDsluCounter, 245 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 64 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 372 SdHoareTripleChecker+Invalid, 548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-04-05 10:01:31,447 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [156 Valid, 372 Invalid, 548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 483 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-04-05 10:01:31,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 297 states. [2022-04-05 10:01:31,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 297 to 191. [2022-04-05 10:01:31,453 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) [2022-04-05 10:01:31,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 289 transitions. [2022-04-05 10:01:31,454 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 289 transitions. Word has length 65 [2022-04-05 10:01:31,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 10:01:31,455 INFO L478 AbstractCegarLoop]: Abstraction has 191 states and 289 transitions. [2022-04-05 10:01:31,455 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:01:31,455 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 289 transitions. [2022-04-05 10:01:31,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-04-05 10:01:31,456 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:01:31,456 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 10:01:31,456 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-04-05 10:01:31,456 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:01:31,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:01:31,456 INFO L85 PathProgramCache]: Analyzing trace with hash -1253743811, now seen corresponding path program 1 times [2022-04-05 10:01:31,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:01:31,457 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570783923] [2022-04-05 10:01:31,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:01:31,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:01:31,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:01:31,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:01:31,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:01:31,571 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 10:01:31,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:01:31,571 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570783923] [2022-04-05 10:01:31,572 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [570783923] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 10:01:31,572 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 10:01:31,572 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 10:01:31,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793957735] [2022-04-05 10:01:31,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 10:01:31,573 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 10:01:31,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 10:01:31,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 10:01:31,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 10:01:31,574 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) [2022-04-05 10:01:33,584 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:01:33,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 10:01:33,987 INFO L93 Difference]: Finished difference Result 359 states and 551 transitions. [2022-04-05 10:01:33,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 10:01:33,987 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 66 [2022-04-05 10:01:33,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 10:01:33,990 INFO L225 Difference]: With dead ends: 359 [2022-04-05 10:01:33,991 INFO L226 Difference]: Without dead ends: 194 [2022-04-05 10:01:33,991 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 10:01:33,992 INFO L913 BasicCegarLoop]: 208 mSDtfsCounter, 11 mSDsluCounter, 327 mSDsCounter, 0 mSdLazyCounter, 348 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 535 SdHoareTripleChecker+Invalid, 353 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 348 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-05 10:01:33,992 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 535 Invalid, 353 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 348 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-04-05 10:01:33,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2022-04-05 10:01:33,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 191. [2022-04-05 10:01:33,997 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) [2022-04-05 10:01:33,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 288 transitions. [2022-04-05 10:01:33,997 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 288 transitions. Word has length 66 [2022-04-05 10:01:33,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 10:01:33,998 INFO L478 AbstractCegarLoop]: Abstraction has 191 states and 288 transitions. [2022-04-05 10:01:33,998 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:01:33,998 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 288 transitions. [2022-04-05 10:01:33,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-04-05 10:01:33,999 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:01:33,999 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 10:01:33,999 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-04-05 10:01:33,999 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:01:33,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:01:33,999 INFO L85 PathProgramCache]: Analyzing trace with hash -1541885266, now seen corresponding path program 1 times [2022-04-05 10:01:34,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:01:34,000 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141982008] [2022-04-05 10:01:34,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:01:34,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:01:34,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:01:34,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:01:34,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:01:34,148 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 10:01:34,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:01:34,148 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1141982008] [2022-04-05 10:01:34,148 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1141982008] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 10:01:34,148 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 10:01:34,149 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 10:01:34,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391499999] [2022-04-05 10:01:34,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 10:01:34,149 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 10:01:34,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 10:01:34,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 10:01:34,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 10:01:34,150 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) [2022-04-05 10:01:35,162 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:01:37,189 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:01:39,209 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:01:39,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 10:01:39,683 INFO L93 Difference]: Finished difference Result 480 states and 738 transitions. [2022-04-05 10:01:39,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 10:01:39,683 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 66 [2022-04-05 10:01:39,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 10:01:39,685 INFO L225 Difference]: With dead ends: 480 [2022-04-05 10:01:39,685 INFO L226 Difference]: Without dead ends: 315 [2022-04-05 10:01:39,685 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 10:01:39,686 INFO L913 BasicCegarLoop]: 128 mSDtfsCounter, 131 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 490 mSolverCounterSat, 61 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s 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, 5.5s IncrementalHoareTripleChecker+Time [2022-04-05 10:01:39,686 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [131 Valid, 374 Invalid, 552 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 490 Invalid, 1 Unknown, 0 Unchecked, 5.5s Time] [2022-04-05 10:01:39,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2022-04-05 10:01:39,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 231. [2022-04-05 10:01:39,693 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) [2022-04-05 10:01:39,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 358 transitions. [2022-04-05 10:01:39,694 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 358 transitions. Word has length 66 [2022-04-05 10:01:39,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 10:01:39,695 INFO L478 AbstractCegarLoop]: Abstraction has 231 states and 358 transitions. [2022-04-05 10:01:39,695 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:01:39,695 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 358 transitions. [2022-04-05 10:01:39,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-04-05 10:01:39,697 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:01:39,698 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 10:01:39,698 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-04-05 10:01:39,698 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:01:39,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:01:39,698 INFO L85 PathProgramCache]: Analyzing trace with hash -524374476, now seen corresponding path program 1 times [2022-04-05 10:01:39,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:01:39,699 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970624385] [2022-04-05 10:01:39,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:01:39,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:01:39,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:01:39,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:01:39,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:01:39,842 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 10:01:39,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:01:39,842 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970624385] [2022-04-05 10:01:39,842 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [970624385] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 10:01:39,842 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 10:01:39,842 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 10:01:39,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812094435] [2022-04-05 10:01:39,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 10:01:39,843 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 10:01:39,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 10:01:39,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 10:01:39,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 10:01:39,844 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) [2022-04-05 10:01:41,856 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:01:42,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 10:01:42,346 INFO L93 Difference]: Finished difference Result 542 states and 851 transitions. [2022-04-05 10:01:42,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 10:01:42,346 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 67 [2022-04-05 10:01:42,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 10:01:42,348 INFO L225 Difference]: With dead ends: 542 [2022-04-05 10:01:42,348 INFO L226 Difference]: Without dead ends: 337 [2022-04-05 10:01:42,349 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 10:01:42,349 INFO L913 BasicCegarLoop]: 137 mSDtfsCounter, 130 mSDsluCounter, 255 mSDsCounter, 0 mSdLazyCounter, 493 mSolverCounterSat, 62 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 392 SdHoareTripleChecker+Invalid, 556 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 493 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-04-05 10:01:42,349 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [130 Valid, 392 Invalid, 556 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 493 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-04-05 10:01:42,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2022-04-05 10:01:42,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 254. [2022-04-05 10:01:42,355 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) [2022-04-05 10:01:42,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 403 transitions. [2022-04-05 10:01:42,357 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 403 transitions. Word has length 67 [2022-04-05 10:01:42,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 10:01:42,357 INFO L478 AbstractCegarLoop]: Abstraction has 254 states and 403 transitions. [2022-04-05 10:01:42,357 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:01:42,357 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 403 transitions. [2022-04-05 10:01:42,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-04-05 10:01:42,358 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:01:42,358 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 10:01:42,358 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-04-05 10:01:42,358 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:01:42,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:01:42,359 INFO L85 PathProgramCache]: Analyzing trace with hash -268597879, now seen corresponding path program 1 times [2022-04-05 10:01:42,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:01:42,359 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [79733336] [2022-04-05 10:01:42,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:01:42,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:01:42,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:01:42,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:01:42,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:01:42,462 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-04-05 10:01:42,462 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:01:42,462 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [79733336] [2022-04-05 10:01:42,462 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [79733336] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 10:01:42,462 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 10:01:42,462 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 10:01:42,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884902528] [2022-04-05 10:01:42,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 10:01:42,463 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 10:01:42,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 10:01:42,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 10:01:42,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 10:01:42,464 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) [2022-04-05 10:01:44,139 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:01:46,160 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:01:48,161 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:01:49,379 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:01:49,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 10:01:49,775 INFO L93 Difference]: Finished difference Result 523 states and 837 transitions. [2022-04-05 10:01:49,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 10:01:49,775 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 95 [2022-04-05 10:01:49,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 10:01:49,777 INFO L225 Difference]: With dead ends: 523 [2022-04-05 10:01:49,777 INFO L226 Difference]: Without dead ends: 295 [2022-04-05 10:01:49,778 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 10:01:49,778 INFO L913 BasicCegarLoop]: 206 mSDtfsCounter, 31 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 403 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 537 SdHoareTripleChecker+Invalid, 414 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 403 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2022-04-05 10:01:49,778 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [31 Valid, 537 Invalid, 414 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 403 Invalid, 1 Unknown, 0 Unchecked, 7.3s Time] [2022-04-05 10:01:49,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2022-04-05 10:01:49,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 276. [2022-04-05 10:01:49,784 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) [2022-04-05 10:01:49,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 438 transitions. [2022-04-05 10:01:49,785 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 438 transitions. Word has length 95 [2022-04-05 10:01:49,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 10:01:49,785 INFO L478 AbstractCegarLoop]: Abstraction has 276 states and 438 transitions. [2022-04-05 10:01:49,785 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:01:49,785 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 438 transitions. [2022-04-05 10:01:49,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-04-05 10:01:49,786 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:01:49,786 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 10:01:49,787 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-04-05 10:01:49,787 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:01:49,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:01:49,787 INFO L85 PathProgramCache]: Analyzing trace with hash 2013387619, now seen corresponding path program 1 times [2022-04-05 10:01:49,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:01:49,787 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594406195] [2022-04-05 10:01:49,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:01:49,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:01:49,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:01:49,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:01:49,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:01:49,924 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-04-05 10:01:49,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:01:49,925 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1594406195] [2022-04-05 10:01:49,925 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1594406195] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 10:01:49,925 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 10:01:49,925 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 10:01:49,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861381161] [2022-04-05 10:01:49,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 10:01:49,926 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 10:01:49,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 10:01:49,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 10:01:49,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 10:01:49,926 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) [2022-04-05 10:01:50,996 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:01:52,047 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:01:53,692 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:01:55,715 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:01:56,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 10:01:56,124 INFO L93 Difference]: Finished difference Result 539 states and 862 transitions. [2022-04-05 10:01:56,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 10:01:56,124 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 109 [2022-04-05 10:01:56,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 10:01:56,128 INFO L225 Difference]: With dead ends: 539 [2022-04-05 10:01:56,128 INFO L226 Difference]: Without dead ends: 289 [2022-04-05 10:01:56,129 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 10:01:56,130 INFO L913 BasicCegarLoop]: 239 mSDtfsCounter, 21 mSDsluCounter, 363 mSDsCounter, 0 mSdLazyCounter, 407 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s 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, 6.2s IncrementalHoareTripleChecker+Time [2022-04-05 10:01:56,130 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [21 Valid, 602 Invalid, 418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 407 Invalid, 1 Unknown, 0 Unchecked, 6.2s Time] [2022-04-05 10:01:56,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289 states. [2022-04-05 10:01:56,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 276. [2022-04-05 10:01:56,137 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) [2022-04-05 10:01:56,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 437 transitions. [2022-04-05 10:01:56,138 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 437 transitions. Word has length 109 [2022-04-05 10:01:56,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 10:01:56,139 INFO L478 AbstractCegarLoop]: Abstraction has 276 states and 437 transitions. [2022-04-05 10:01:56,139 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:01:56,139 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 437 transitions. [2022-04-05 10:01:56,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-04-05 10:01:56,140 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:01:56,140 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 10:01:56,140 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-04-05 10:01:56,141 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:01:56,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:01:56,141 INFO L85 PathProgramCache]: Analyzing trace with hash 769236707, now seen corresponding path program 1 times [2022-04-05 10:01:56,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:01:56,141 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717000698] [2022-04-05 10:01:56,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:01:56,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:01:56,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:01:56,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:01:56,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:01:56,250 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-04-05 10:01:56,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:01:56,251 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1717000698] [2022-04-05 10:01:56,251 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1717000698] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 10:01:56,251 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 10:01:56,251 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 10:01:56,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929041899] [2022-04-05 10:01:56,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 10:01:56,251 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 10:01:56,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 10:01:56,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 10:01:56,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 10:01:56,253 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) [2022-04-05 10:01:58,267 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:01:58,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 10:01:58,628 INFO L93 Difference]: Finished difference Result 544 states and 868 transitions. [2022-04-05 10:01:58,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 10:01:58,629 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 109 [2022-04-05 10:01:58,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 10:01:58,630 INFO L225 Difference]: With dead ends: 544 [2022-04-05 10:01:58,630 INFO L226 Difference]: Without dead ends: 294 [2022-04-05 10:01:58,630 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 10:01:58,631 INFO L913 BasicCegarLoop]: 208 mSDtfsCounter, 34 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 397 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s 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, 2.4s IncrementalHoareTripleChecker+Time [2022-04-05 10:01:58,631 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 539 Invalid, 408 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 397 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-04-05 10:01:58,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2022-04-05 10:01:58,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 276. [2022-04-05 10:01:58,636 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) [2022-04-05 10:01:58,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 436 transitions. [2022-04-05 10:01:58,637 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 436 transitions. Word has length 109 [2022-04-05 10:01:58,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 10:01:58,637 INFO L478 AbstractCegarLoop]: Abstraction has 276 states and 436 transitions. [2022-04-05 10:01:58,638 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:01:58,638 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 436 transitions. [2022-04-05 10:01:58,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-04-05 10:01:58,639 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:01:58,639 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 10:01:58,639 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-04-05 10:01:58,639 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:01:58,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:01:58,640 INFO L85 PathProgramCache]: Analyzing trace with hash 621269315, now seen corresponding path program 1 times [2022-04-05 10:01:58,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:01:58,640 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307393533] [2022-04-05 10:01:58,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:01:58,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:01:58,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:01:58,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:01:58,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:01:58,760 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-04-05 10:01:58,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:01:58,761 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307393533] [2022-04-05 10:01:58,761 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1307393533] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 10:01:58,761 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 10:01:58,761 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-05 10:01:58,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744588138] [2022-04-05 10:01:58,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 10:01:58,761 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-05 10:01:58,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 10:01:58,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-05 10:01:58,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-04-05 10:01:58,762 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) [2022-04-05 10:02:00,277 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 [] [2022-04-05 10:02:02,300 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:02:03,937 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:02:05,962 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:02:06,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 10:02:06,783 INFO L93 Difference]: Finished difference Result 535 states and 854 transitions. [2022-04-05 10:02:06,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-05 10:02:06,783 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 5 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 110 [2022-04-05 10:02:06,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 10:02:06,784 INFO L225 Difference]: With dead ends: 535 [2022-04-05 10:02:06,784 INFO L226 Difference]: Without dead ends: 285 [2022-04-05 10:02:06,785 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-04-05 10:02:06,786 INFO L913 BasicCegarLoop]: 213 mSDtfsCounter, 3 mSDsluCounter, 460 mSDsCounter, 0 mSdLazyCounter, 444 mSolverCounterSat, 4 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 673 SdHoareTripleChecker+Invalid, 450 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 444 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2022-04-05 10:02:06,786 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 673 Invalid, 450 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 444 Invalid, 2 Unknown, 0 Unchecked, 8.0s Time] [2022-04-05 10:02:06,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2022-04-05 10:02:06,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 285. [2022-04-05 10:02:06,791 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) [2022-04-05 10:02:06,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 447 transitions. [2022-04-05 10:02:06,792 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 447 transitions. Word has length 110 [2022-04-05 10:02:06,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 10:02:06,793 INFO L478 AbstractCegarLoop]: Abstraction has 285 states and 447 transitions. [2022-04-05 10:02:06,793 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 5 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:02:06,793 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 447 transitions. [2022-04-05 10:02:06,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-04-05 10:02:06,794 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:02:06,794 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 10:02:06,794 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-04-05 10:02:06,794 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:02:06,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:02:06,795 INFO L85 PathProgramCache]: Analyzing trace with hash 1743617315, now seen corresponding path program 1 times [2022-04-05 10:02:06,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:02:06,795 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2047979268] [2022-04-05 10:02:06,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:02:06,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:02:06,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:02:06,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:02:06,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:02:06,916 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-04-05 10:02:06,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:02:06,916 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2047979268] [2022-04-05 10:02:06,916 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2047979268] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 10:02:06,916 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 10:02:06,917 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 10:02:06,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136274669] [2022-04-05 10:02:06,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 10:02:06,917 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 10:02:06,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 10:02:06,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 10:02:06,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 10:02:06,918 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) [2022-04-05 10:02:09,658 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:02:11,685 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:02:12,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 10:02:12,461 INFO L93 Difference]: Finished difference Result 571 states and 899 transitions. [2022-04-05 10:02:12,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 10:02:12,462 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 110 [2022-04-05 10:02:12,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 10:02:12,463 INFO L225 Difference]: With dead ends: 571 [2022-04-05 10:02:12,463 INFO L226 Difference]: Without dead ends: 312 [2022-04-05 10:02:12,464 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 10:02:12,464 INFO L913 BasicCegarLoop]: 208 mSDtfsCounter, 39 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 399 mSolverCounterSat, 10 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 539 SdHoareTripleChecker+Invalid, 411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 399 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-04-05 10:02:12,465 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [39 Valid, 539 Invalid, 411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 399 Invalid, 2 Unknown, 0 Unchecked, 5.5s Time] [2022-04-05 10:02:12,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2022-04-05 10:02:12,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 285. [2022-04-05 10:02:12,471 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) [2022-04-05 10:02:12,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 446 transitions. [2022-04-05 10:02:12,472 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 446 transitions. Word has length 110 [2022-04-05 10:02:12,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 10:02:12,472 INFO L478 AbstractCegarLoop]: Abstraction has 285 states and 446 transitions. [2022-04-05 10:02:12,472 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:02:12,472 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 446 transitions. [2022-04-05 10:02:12,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-04-05 10:02:12,473 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:02:12,473 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 10:02:12,474 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-04-05 10:02:12,474 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:02:12,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:02:12,474 INFO L85 PathProgramCache]: Analyzing trace with hash -552642818, now seen corresponding path program 1 times [2022-04-05 10:02:12,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:02:12,474 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896605738] [2022-04-05 10:02:12,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:02:12,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:02:12,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:02:12,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:02:12,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:02:12,607 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-04-05 10:02:12,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:02:12,607 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896605738] [2022-04-05 10:02:12,607 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1896605738] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 10:02:12,607 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 10:02:12,607 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 10:02:12,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695450762] [2022-04-05 10:02:12,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 10:02:12,608 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 10:02:12,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 10:02:12,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 10:02:12,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 10:02:12,609 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) [2022-04-05 10:02:14,187 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:02:15,848 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:02:17,876 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:02:18,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 10:02:18,929 INFO L93 Difference]: Finished difference Result 636 states and 992 transitions. [2022-04-05 10:02:18,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 10:02:18,929 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 111 [2022-04-05 10:02:18,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 10:02:18,931 INFO L225 Difference]: With dead ends: 636 [2022-04-05 10:02:18,931 INFO L226 Difference]: Without dead ends: 377 [2022-04-05 10:02:18,931 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 10:02:18,932 INFO L913 BasicCegarLoop]: 137 mSDtfsCounter, 156 mSDsluCounter, 255 mSDsCounter, 0 mSdLazyCounter, 496 mSolverCounterSat, 62 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s 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, 6.3s IncrementalHoareTripleChecker+Time [2022-04-05 10:02:18,932 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [156 Valid, 392 Invalid, 559 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 496 Invalid, 1 Unknown, 0 Unchecked, 6.3s Time] [2022-04-05 10:02:18,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2022-04-05 10:02:18,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 285. [2022-04-05 10:02:18,938 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) [2022-04-05 10:02:18,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 442 transitions. [2022-04-05 10:02:18,939 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 442 transitions. Word has length 111 [2022-04-05 10:02:18,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 10:02:18,939 INFO L478 AbstractCegarLoop]: Abstraction has 285 states and 442 transitions. [2022-04-05 10:02:18,939 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:02:18,940 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 442 transitions. [2022-04-05 10:02:18,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-04-05 10:02:18,941 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:02:18,941 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 10:02:18,941 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-04-05 10:02:18,941 INFO L403 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:02:18,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:02:18,941 INFO L85 PathProgramCache]: Analyzing trace with hash 1410842427, now seen corresponding path program 1 times [2022-04-05 10:02:18,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:02:18,942 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680726271] [2022-04-05 10:02:18,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:02:18,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:02:18,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:02:19,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:02:19,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:02:19,057 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-04-05 10:02:19,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:02:19,058 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680726271] [2022-04-05 10:02:19,058 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [680726271] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 10:02:19,059 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 10:02:19,059 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 10:02:19,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122457425] [2022-04-05 10:02:19,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 10:02:19,059 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 10:02:19,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 10:02:19,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 10:02:19,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 10:02:19,060 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) [2022-04-05 10:02:21,073 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:02:21,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 10:02:21,447 INFO L93 Difference]: Finished difference Result 561 states and 876 transitions. [2022-04-05 10:02:21,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 10:02:21,447 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 113 [2022-04-05 10:02:21,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 10:02:21,448 INFO L225 Difference]: With dead ends: 561 [2022-04-05 10:02:21,448 INFO L226 Difference]: Without dead ends: 302 [2022-04-05 10:02:21,449 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 10:02:21,449 INFO L913 BasicCegarLoop]: 209 mSDtfsCounter, 33 mSDsluCounter, 332 mSDsCounter, 0 mSdLazyCounter, 395 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 541 SdHoareTripleChecker+Invalid, 406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 395 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-05 10:02:21,449 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 541 Invalid, 406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 395 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-04-05 10:02:21,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2022-04-05 10:02:21,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 285. [2022-04-05 10:02:21,455 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) [2022-04-05 10:02:21,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 441 transitions. [2022-04-05 10:02:21,456 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 441 transitions. Word has length 113 [2022-04-05 10:02:21,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 10:02:21,456 INFO L478 AbstractCegarLoop]: Abstraction has 285 states and 441 transitions. [2022-04-05 10:02:21,457 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:02:21,457 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 441 transitions. [2022-04-05 10:02:21,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-04-05 10:02:21,458 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:02:21,458 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 10:02:21,458 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-04-05 10:02:21,458 INFO L403 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:02:21,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:02:21,459 INFO L85 PathProgramCache]: Analyzing trace with hash -1137654742, now seen corresponding path program 1 times [2022-04-05 10:02:21,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:02:21,459 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34138456] [2022-04-05 10:02:21,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:02:21,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:02:21,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:02:21,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:02:21,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:02:21,621 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-04-05 10:02:21,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:02:21,621 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [34138456] [2022-04-05 10:02:21,621 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [34138456] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 10:02:21,621 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 10:02:21,621 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 10:02:21,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955355636] [2022-04-05 10:02:21,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 10:02:21,622 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 10:02:21,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 10:02:21,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 10:02:21,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 10:02:21,623 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) [2022-04-05 10:02:22,935 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:02:24,013 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:02:25,649 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:02:26,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 10:02:26,091 INFO L93 Difference]: Finished difference Result 652 states and 1015 transitions. [2022-04-05 10:02:26,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 10:02:26,092 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 117 [2022-04-05 10:02:26,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 10:02:26,093 INFO L225 Difference]: With dead ends: 652 [2022-04-05 10:02:26,093 INFO L226 Difference]: Without dead ends: 393 [2022-04-05 10:02:26,094 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 10:02:26,094 INFO L913 BasicCegarLoop]: 205 mSDtfsCounter, 96 mSDsluCounter, 330 mSDsCounter, 0 mSdLazyCounter, 538 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 535 SdHoareTripleChecker+Invalid, 550 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 538 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-04-05 10:02:26,095 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [96 Valid, 535 Invalid, 550 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 538 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2022-04-05 10:02:26,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2022-04-05 10:02:26,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 319. [2022-04-05 10:02:26,101 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) [2022-04-05 10:02:26,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 497 transitions. [2022-04-05 10:02:26,102 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 497 transitions. Word has length 117 [2022-04-05 10:02:26,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 10:02:26,103 INFO L478 AbstractCegarLoop]: Abstraction has 319 states and 497 transitions. [2022-04-05 10:02:26,103 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:02:26,103 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 497 transitions. [2022-04-05 10:02:26,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-04-05 10:02:26,104 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:02:26,104 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 10:02:26,104 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-04-05 10:02:26,104 INFO L403 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:02:26,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:02:26,105 INFO L85 PathProgramCache]: Analyzing trace with hash -1383967829, now seen corresponding path program 1 times [2022-04-05 10:02:26,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:02:26,105 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954675691] [2022-04-05 10:02:26,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:02:26,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:02:26,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:02:26,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:02:26,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:02:26,231 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-04-05 10:02:26,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:02:26,231 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954675691] [2022-04-05 10:02:26,231 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1954675691] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 10:02:26,231 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 10:02:26,232 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 10:02:26,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995487493] [2022-04-05 10:02:26,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 10:02:26,232 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 10:02:26,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 10:02:26,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 10:02:26,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 10:02:26,233 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) [2022-04-05 10:02:28,018 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:02:29,644 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:02:31,669 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:02:32,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 10:02:32,085 INFO L93 Difference]: Finished difference Result 669 states and 1046 transitions. [2022-04-05 10:02:32,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 10:02:32,085 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 117 [2022-04-05 10:02:32,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 10:02:32,086 INFO L225 Difference]: With dead ends: 669 [2022-04-05 10:02:32,086 INFO L226 Difference]: Without dead ends: 376 [2022-04-05 10:02:32,087 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 10:02:32,087 INFO L913 BasicCegarLoop]: 257 mSDtfsCounter, 38 mSDsluCounter, 380 mSDsCounter, 0 mSdLazyCounter, 476 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 637 SdHoareTripleChecker+Invalid, 487 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 476 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-04-05 10:02:32,087 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 637 Invalid, 487 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 476 Invalid, 1 Unknown, 0 Unchecked, 5.8s Time] [2022-04-05 10:02:32,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 376 states. [2022-04-05 10:02:32,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 376 to 343. [2022-04-05 10:02:32,094 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) [2022-04-05 10:02:32,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 535 transitions. [2022-04-05 10:02:32,095 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 535 transitions. Word has length 117 [2022-04-05 10:02:32,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 10:02:32,095 INFO L478 AbstractCegarLoop]: Abstraction has 343 states and 535 transitions. [2022-04-05 10:02:32,096 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:02:32,096 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 535 transitions. [2022-04-05 10:02:32,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-04-05 10:02:32,097 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:02:32,097 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 10:02:32,097 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-04-05 10:02:32,097 INFO L403 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:02:32,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:02:32,098 INFO L85 PathProgramCache]: Analyzing trace with hash -1058943794, now seen corresponding path program 1 times [2022-04-05 10:02:32,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:02:32,098 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856033172] [2022-04-05 10:02:32,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:02:32,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:02:32,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:02:32,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:02:32,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:02:32,213 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2022-04-05 10:02:32,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:02:32,213 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856033172] [2022-04-05 10:02:32,213 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [856033172] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 10:02:32,213 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 10:02:32,214 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 10:02:32,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648125721] [2022-04-05 10:02:32,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 10:02:32,214 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 10:02:32,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 10:02:32,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 10:02:32,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 10:02:32,215 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) [2022-04-05 10:02:33,511 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:02:35,531 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:02:37,557 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:02:38,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 10:02:38,674 INFO L93 Difference]: Finished difference Result 742 states and 1158 transitions. [2022-04-05 10:02:38,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 10:02:38,674 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 [2022-04-05 10:02:38,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 10:02:38,675 INFO L225 Difference]: With dead ends: 742 [2022-04-05 10:02:38,676 INFO L226 Difference]: Without dead ends: 425 [2022-04-05 10:02:38,676 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 10:02:38,677 INFO L913 BasicCegarLoop]: 128 mSDtfsCounter, 157 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 63 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 374 SdHoareTripleChecker+Invalid, 548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2022-04-05 10:02:38,677 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [157 Valid, 374 Invalid, 548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 483 Invalid, 2 Unknown, 0 Unchecked, 6.4s Time] [2022-04-05 10:02:38,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 425 states. [2022-04-05 10:02:38,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 425 to 343. [2022-04-05 10:02:38,684 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) [2022-04-05 10:02:38,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 529 transitions. [2022-04-05 10:02:38,685 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 529 transitions. Word has length 122 [2022-04-05 10:02:38,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 10:02:38,685 INFO L478 AbstractCegarLoop]: Abstraction has 343 states and 529 transitions. [2022-04-05 10:02:38,686 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:02:38,686 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 529 transitions. [2022-04-05 10:02:38,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-04-05 10:02:38,704 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:02:38,704 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 10:02:38,704 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-04-05 10:02:38,705 INFO L403 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:02:38,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:02:38,705 INFO L85 PathProgramCache]: Analyzing trace with hash 1303023360, now seen corresponding path program 1 times [2022-04-05 10:02:38,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:02:38,705 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181161905] [2022-04-05 10:02:38,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:02:38,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:02:38,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:02:38,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:02:38,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:02:38,827 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-04-05 10:02:38,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:02:38,827 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181161905] [2022-04-05 10:02:38,827 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [181161905] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 10:02:38,827 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 10:02:38,827 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 10:02:38,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001989070] [2022-04-05 10:02:38,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 10:02:38,828 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 10:02:38,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 10:02:38,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 10:02:38,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 10:02:38,829 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) [2022-04-05 10:02:40,121 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:02:42,139 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:02:44,166 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:02:46,190 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:02:46,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 10:02:46,654 INFO L93 Difference]: Finished difference Result 782 states and 1214 transitions. [2022-04-05 10:02:46,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 10:02:46,655 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 123 [2022-04-05 10:02:46,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 10:02:46,657 INFO L225 Difference]: With dead ends: 782 [2022-04-05 10:02:46,657 INFO L226 Difference]: Without dead ends: 465 [2022-04-05 10:02:46,657 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 10:02:46,658 INFO L913 BasicCegarLoop]: 128 mSDtfsCounter, 130 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 60 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 374 SdHoareTripleChecker+Invalid, 546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2022-04-05 10:02:46,658 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [130 Valid, 374 Invalid, 546 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 483 Invalid, 3 Unknown, 0 Unchecked, 7.8s Time] [2022-04-05 10:02:46,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 465 states. [2022-04-05 10:02:46,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 465 to 380. [2022-04-05 10:02:46,665 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) [2022-04-05 10:02:46,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 591 transitions. [2022-04-05 10:02:46,666 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 591 transitions. Word has length 123 [2022-04-05 10:02:46,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 10:02:46,667 INFO L478 AbstractCegarLoop]: Abstraction has 380 states and 591 transitions. [2022-04-05 10:02:46,667 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:02:46,667 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 591 transitions. [2022-04-05 10:02:46,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-04-05 10:02:46,668 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:02:46,668 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 10:02:46,668 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-04-05 10:02:46,668 INFO L403 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:02:46,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:02:46,669 INFO L85 PathProgramCache]: Analyzing trace with hash -1648642121, now seen corresponding path program 1 times [2022-04-05 10:02:46,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:02:46,669 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045264715] [2022-04-05 10:02:46,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:02:46,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:02:46,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:02:46,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:02:46,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:02:46,785 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-04-05 10:02:46,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:02:46,785 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1045264715] [2022-04-05 10:02:46,785 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1045264715] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 10:02:46,785 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 10:02:46,785 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 10:02:46,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442283075] [2022-04-05 10:02:46,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 10:02:46,786 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 10:02:46,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 10:02:46,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 10:02:46,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 10:02:46,787 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) [2022-04-05 10:02:50,289 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:02:51,960 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:02:52,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 10:02:52,378 INFO L93 Difference]: Finished difference Result 795 states and 1241 transitions. [2022-04-05 10:02:52,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 10:02:52,379 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 124 [2022-04-05 10:02:52,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 10:02:52,380 INFO L225 Difference]: With dead ends: 795 [2022-04-05 10:02:52,380 INFO L226 Difference]: Without dead ends: 441 [2022-04-05 10:02:52,381 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 10:02:52,381 INFO L913 BasicCegarLoop]: 190 mSDtfsCounter, 84 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 515 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s 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, 5.6s IncrementalHoareTripleChecker+Time [2022-04-05 10:02:52,381 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [84 Valid, 505 Invalid, 526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 515 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2022-04-05 10:02:52,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 441 states. [2022-04-05 10:02:52,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 441 to 386. [2022-04-05 10:02:52,389 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) [2022-04-05 10:02:52,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 601 transitions. [2022-04-05 10:02:52,390 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 601 transitions. Word has length 124 [2022-04-05 10:02:52,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 10:02:52,390 INFO L478 AbstractCegarLoop]: Abstraction has 386 states and 601 transitions. [2022-04-05 10:02:52,390 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:02:52,390 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 601 transitions. [2022-04-05 10:02:52,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-04-05 10:02:52,392 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:02:52,392 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 10:02:52,392 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-04-05 10:02:52,392 INFO L403 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:02:52,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:02:52,392 INFO L85 PathProgramCache]: Analyzing trace with hash -880398396, now seen corresponding path program 1 times [2022-04-05 10:02:52,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:02:52,393 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667503077] [2022-04-05 10:02:52,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:02:52,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:02:52,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:02:52,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:02:52,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:02:52,502 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 105 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-04-05 10:02:52,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:02:52,502 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667503077] [2022-04-05 10:02:52,502 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [667503077] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 10:02:52,502 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 10:02:52,503 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 10:02:52,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157163995] [2022-04-05 10:02:52,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 10:02:52,503 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 10:02:52,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 10:02:52,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 10:02:52,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 10:02:52,504 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) [2022-04-05 10:02:54,064 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:02:56,089 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:02:57,887 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:02:59,639 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:03:00,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 10:03:00,111 INFO L93 Difference]: Finished difference Result 827 states and 1289 transitions. [2022-04-05 10:03:00,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 10:03:00,111 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 131 [2022-04-05 10:03:00,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 10:03:00,113 INFO L225 Difference]: With dead ends: 827 [2022-04-05 10:03:00,113 INFO L226 Difference]: Without dead ends: 467 [2022-04-05 10:03:00,114 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 10:03:00,115 INFO L913 BasicCegarLoop]: 129 mSDtfsCounter, 149 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 61 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 376 SdHoareTripleChecker+Invalid, 544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2022-04-05 10:03:00,115 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [149 Valid, 376 Invalid, 544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 482 Invalid, 1 Unknown, 0 Unchecked, 7.6s Time] [2022-04-05 10:03:00,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 467 states. [2022-04-05 10:03:00,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 467 to 386. [2022-04-05 10:03:00,122 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) [2022-04-05 10:03:00,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 596 transitions. [2022-04-05 10:03:00,123 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 596 transitions. Word has length 131 [2022-04-05 10:03:00,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 10:03:00,124 INFO L478 AbstractCegarLoop]: Abstraction has 386 states and 596 transitions. [2022-04-05 10:03:00,124 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:03:00,124 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 596 transitions. [2022-04-05 10:03:00,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-04-05 10:03:00,125 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:03:00,125 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 10:03:00,125 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-04-05 10:03:00,125 INFO L403 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:03:00,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:03:00,126 INFO L85 PathProgramCache]: Analyzing trace with hash 1831808920, now seen corresponding path program 1 times [2022-04-05 10:03:00,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:03:00,126 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749073100] [2022-04-05 10:03:00,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:03:00,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:03:00,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:03:00,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:03:00,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:03:00,239 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-04-05 10:03:00,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:03:00,239 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1749073100] [2022-04-05 10:03:00,239 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1749073100] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 10:03:00,239 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 10:03:00,239 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 10:03:00,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017853152] [2022-04-05 10:03:00,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 10:03:00,240 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 10:03:00,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 10:03:00,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 10:03:00,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 10:03:00,240 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) [2022-04-05 10:03:01,741 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:03:03,602 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:03:04,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 10:03:04,051 INFO L93 Difference]: Finished difference Result 867 states and 1345 transitions. [2022-04-05 10:03:04,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 10:03:04,051 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 131 [2022-04-05 10:03:04,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 10:03:04,053 INFO L225 Difference]: With dead ends: 867 [2022-04-05 10:03:04,053 INFO L226 Difference]: Without dead ends: 507 [2022-04-05 10:03:04,053 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 10:03:04,054 INFO L913 BasicCegarLoop]: 139 mSDtfsCounter, 122 mSDsluCounter, 258 mSDsCounter, 0 mSdLazyCounter, 494 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s 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, 3.8s IncrementalHoareTripleChecker+Time [2022-04-05 10:03:04,054 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [122 Valid, 397 Invalid, 552 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 494 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2022-04-05 10:03:04,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 507 states. [2022-04-05 10:03:04,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 507 to 429. [2022-04-05 10:03:04,062 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) [2022-04-05 10:03:04,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 429 states and 667 transitions. [2022-04-05 10:03:04,063 INFO L78 Accepts]: Start accepts. Automaton has 429 states and 667 transitions. Word has length 131 [2022-04-05 10:03:04,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 10:03:04,063 INFO L478 AbstractCegarLoop]: Abstraction has 429 states and 667 transitions. [2022-04-05 10:03:04,064 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:03:04,064 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states and 667 transitions. [2022-04-05 10:03:04,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-04-05 10:03:04,065 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:03:04,065 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 10:03:04,065 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-04-05 10:03:04,065 INFO L403 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:03:04,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:03:04,066 INFO L85 PathProgramCache]: Analyzing trace with hash 2144536674, now seen corresponding path program 1 times [2022-04-05 10:03:04,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:03:04,066 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113865323] [2022-04-05 10:03:04,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:03:04,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:03:04,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:03:04,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:03:04,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:03:04,211 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 81 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-04-05 10:03:04,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:03:04,212 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [113865323] [2022-04-05 10:03:04,212 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [113865323] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 10:03:04,212 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 10:03:04,212 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 10:03:04,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753395] [2022-04-05 10:03:04,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 10:03:04,213 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 10:03:04,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 10:03:04,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 10:03:04,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 10:03:04,214 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) [2022-04-05 10:03:06,636 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:03:08,660 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:03:10,684 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:03:11,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 10:03:11,123 INFO L93 Difference]: Finished difference Result 913 states and 1421 transitions. [2022-04-05 10:03:11,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 10:03:11,124 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 132 [2022-04-05 10:03:11,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 10:03:11,125 INFO L225 Difference]: With dead ends: 913 [2022-04-05 10:03:11,125 INFO L226 Difference]: Without dead ends: 510 [2022-04-05 10:03:11,126 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 10:03:11,126 INFO L913 BasicCegarLoop]: 129 mSDtfsCounter, 154 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 480 mSolverCounterSat, 61 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 376 SdHoareTripleChecker+Invalid, 544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 480 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2022-04-05 10:03:11,126 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [154 Valid, 376 Invalid, 544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 480 Invalid, 3 Unknown, 0 Unchecked, 6.9s Time] [2022-04-05 10:03:11,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 510 states. [2022-04-05 10:03:11,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 510 to 429. [2022-04-05 10:03:11,134 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) [2022-04-05 10:03:11,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 429 states and 660 transitions. [2022-04-05 10:03:11,135 INFO L78 Accepts]: Start accepts. Automaton has 429 states and 660 transitions. Word has length 132 [2022-04-05 10:03:11,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 10:03:11,135 INFO L478 AbstractCegarLoop]: Abstraction has 429 states and 660 transitions. [2022-04-05 10:03:11,135 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:03:11,135 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states and 660 transitions. [2022-04-05 10:03:11,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-04-05 10:03:11,137 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:03:11,137 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 10:03:11,137 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-04-05 10:03:11,137 INFO L403 AbstractCegarLoop]: === Iteration 27 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:03:11,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:03:11,138 INFO L85 PathProgramCache]: Analyzing trace with hash 930118479, now seen corresponding path program 1 times [2022-04-05 10:03:11,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:03:11,138 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654294703] [2022-04-05 10:03:11,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:03:11,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:03:11,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:03:11,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:03:11,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:03:11,273 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-04-05 10:03:11,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:03:11,273 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [654294703] [2022-04-05 10:03:11,273 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [654294703] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 10:03:11,273 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 10:03:11,273 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 10:03:11,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084352271] [2022-04-05 10:03:11,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 10:03:11,274 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 10:03:11,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 10:03:11,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 10:03:11,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 10:03:11,274 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) [2022-04-05 10:03:12,813 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:03:14,257 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:03:16,277 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:03:16,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 10:03:16,738 INFO L93 Difference]: Finished difference Result 913 states and 1407 transitions. [2022-04-05 10:03:16,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 10:03:16,738 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 132 [2022-04-05 10:03:16,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 10:03:16,740 INFO L225 Difference]: With dead ends: 913 [2022-04-05 10:03:16,740 INFO L226 Difference]: Without dead ends: 508 [2022-04-05 10:03:16,741 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 10:03:16,741 INFO L913 BasicCegarLoop]: 139 mSDtfsCounter, 122 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 492 mSolverCounterSat, 58 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 396 SdHoareTripleChecker+Invalid, 551 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 492 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-04-05 10:03:16,741 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [122 Valid, 396 Invalid, 551 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 492 Invalid, 1 Unknown, 0 Unchecked, 5.4s Time] [2022-04-05 10:03:16,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 508 states. [2022-04-05 10:03:16,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 508 to 431. [2022-04-05 10:03:16,749 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) [2022-04-05 10:03:16,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 431 states to 431 states and 663 transitions. [2022-04-05 10:03:16,750 INFO L78 Accepts]: Start accepts. Automaton has 431 states and 663 transitions. Word has length 132 [2022-04-05 10:03:16,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 10:03:16,750 INFO L478 AbstractCegarLoop]: Abstraction has 431 states and 663 transitions. [2022-04-05 10:03:16,751 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:03:16,751 INFO L276 IsEmpty]: Start isEmpty. Operand 431 states and 663 transitions. [2022-04-05 10:03:16,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-04-05 10:03:16,752 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:03:16,752 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 10:03:16,752 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-04-05 10:03:16,752 INFO L403 AbstractCegarLoop]: === Iteration 28 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:03:16,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:03:16,753 INFO L85 PathProgramCache]: Analyzing trace with hash 895416220, now seen corresponding path program 1 times [2022-04-05 10:03:16,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:03:16,753 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770587161] [2022-04-05 10:03:16,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:03:16,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:03:16,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:03:16,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:03:16,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:03:16,863 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 93 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-04-05 10:03:16,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:03:16,863 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770587161] [2022-04-05 10:03:16,863 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1770587161] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 10:03:16,864 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 10:03:16,864 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 10:03:16,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037412786] [2022-04-05 10:03:16,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 10:03:16,864 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 10:03:16,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 10:03:16,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 10:03:16,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 10:03:16,865 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) [2022-04-05 10:03:18,022 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:03:20,041 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:03:22,529 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:03:22,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 10:03:22,919 INFO L93 Difference]: Finished difference Result 874 states and 1350 transitions. [2022-04-05 10:03:22,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 10:03:22,919 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 135 [2022-04-05 10:03:22,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 10:03:22,921 INFO L225 Difference]: With dead ends: 874 [2022-04-05 10:03:22,921 INFO L226 Difference]: Without dead ends: 469 [2022-04-05 10:03:22,922 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 10:03:22,922 INFO L913 BasicCegarLoop]: 201 mSDtfsCounter, 88 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 492 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 525 SdHoareTripleChecker+Invalid, 501 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 492 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-04-05 10:03:22,923 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [88 Valid, 525 Invalid, 501 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 492 Invalid, 2 Unknown, 0 Unchecked, 6.0s Time] [2022-04-05 10:03:22,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469 states. [2022-04-05 10:03:22,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 469 to 431. [2022-04-05 10:03:22,930 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) [2022-04-05 10:03:22,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 431 states to 431 states and 662 transitions. [2022-04-05 10:03:22,931 INFO L78 Accepts]: Start accepts. Automaton has 431 states and 662 transitions. Word has length 135 [2022-04-05 10:03:22,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 10:03:22,931 INFO L478 AbstractCegarLoop]: Abstraction has 431 states and 662 transitions. [2022-04-05 10:03:22,931 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:03:22,932 INFO L276 IsEmpty]: Start isEmpty. Operand 431 states and 662 transitions. [2022-04-05 10:03:22,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-04-05 10:03:22,933 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:03:22,933 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 10:03:22,933 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-04-05 10:03:22,933 INFO L403 AbstractCegarLoop]: === Iteration 29 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:03:22,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:03:22,934 INFO L85 PathProgramCache]: Analyzing trace with hash -1545205539, now seen corresponding path program 1 times [2022-04-05 10:03:22,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:03:22,934 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796782698] [2022-04-05 10:03:22,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:03:22,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:03:22,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:03:23,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:03:23,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:03:23,048 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 93 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-04-05 10:03:23,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:03:23,049 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1796782698] [2022-04-05 10:03:23,049 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1796782698] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 10:03:23,049 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 10:03:23,049 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 10:03:23,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190734561] [2022-04-05 10:03:23,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 10:03:23,049 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 10:03:23,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 10:03:23,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 10:03:23,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 10:03:23,050 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) [2022-04-05 10:03:24,929 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:03:26,953 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:03:28,978 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:03:31,001 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:03:31,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 10:03:31,376 INFO L93 Difference]: Finished difference Result 848 states and 1311 transitions. [2022-04-05 10:03:31,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 10:03:31,376 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 135 [2022-04-05 10:03:31,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 10:03:31,378 INFO L225 Difference]: With dead ends: 848 [2022-04-05 10:03:31,378 INFO L226 Difference]: Without dead ends: 443 [2022-04-05 10:03:31,378 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 10:03:31,379 INFO L913 BasicCegarLoop]: 248 mSDtfsCounter, 36 mSDsluCounter, 371 mSDsCounter, 0 mSdLazyCounter, 432 mSolverCounterSat, 5 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 619 SdHoareTripleChecker+Invalid, 440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 432 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2022-04-05 10:03:31,379 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 619 Invalid, 440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 432 Invalid, 3 Unknown, 0 Unchecked, 8.3s Time] [2022-04-05 10:03:31,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443 states. [2022-04-05 10:03:31,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 431. [2022-04-05 10:03:31,386 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) [2022-04-05 10:03:31,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 431 states to 431 states and 661 transitions. [2022-04-05 10:03:31,387 INFO L78 Accepts]: Start accepts. Automaton has 431 states and 661 transitions. Word has length 135 [2022-04-05 10:03:31,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 10:03:31,387 INFO L478 AbstractCegarLoop]: Abstraction has 431 states and 661 transitions. [2022-04-05 10:03:31,387 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:03:31,388 INFO L276 IsEmpty]: Start isEmpty. Operand 431 states and 661 transitions. [2022-04-05 10:03:31,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2022-04-05 10:03:31,389 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:03:31,389 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 10:03:31,389 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-04-05 10:03:31,389 INFO L403 AbstractCegarLoop]: === Iteration 30 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:03:31,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:03:31,390 INFO L85 PathProgramCache]: Analyzing trace with hash 106764108, now seen corresponding path program 1 times [2022-04-05 10:03:31,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:03:31,390 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583651634] [2022-04-05 10:03:31,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:03:31,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:03:31,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:03:31,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:03:31,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:03:31,500 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 122 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-04-05 10:03:31,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:03:31,501 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583651634] [2022-04-05 10:03:31,501 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [583651634] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 10:03:31,501 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 10:03:31,501 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 10:03:31,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864756494] [2022-04-05 10:03:31,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 10:03:31,501 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 10:03:31,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 10:03:31,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 10:03:31,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 10:03:31,502 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) [2022-04-05 10:03:32,581 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:03:34,600 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:03:37,240 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:03:37,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 10:03:37,660 INFO L93 Difference]: Finished difference Result 874 states and 1346 transitions. [2022-04-05 10:03:37,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 10:03:37,660 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 139 [2022-04-05 10:03:37,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 10:03:37,662 INFO L225 Difference]: With dead ends: 874 [2022-04-05 10:03:37,662 INFO L226 Difference]: Without dead ends: 469 [2022-04-05 10:03:37,662 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 10:03:37,663 INFO L913 BasicCegarLoop]: 208 mSDtfsCounter, 78 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 499 mSolverCounterSat, 7 mSolverCounterUnsat, 2 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, 499 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-04-05 10:03:37,663 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [78 Valid, 541 Invalid, 508 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 499 Invalid, 2 Unknown, 0 Unchecked, 6.1s Time] [2022-04-05 10:03:37,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469 states. [2022-04-05 10:03:37,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 469 to 431. [2022-04-05 10:03:37,670 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) [2022-04-05 10:03:37,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 431 states to 431 states and 660 transitions. [2022-04-05 10:03:37,671 INFO L78 Accepts]: Start accepts. Automaton has 431 states and 660 transitions. Word has length 139 [2022-04-05 10:03:37,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 10:03:37,671 INFO L478 AbstractCegarLoop]: Abstraction has 431 states and 660 transitions. [2022-04-05 10:03:37,672 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:03:37,672 INFO L276 IsEmpty]: Start isEmpty. Operand 431 states and 660 transitions. [2022-04-05 10:03:37,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2022-04-05 10:03:37,673 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:03:37,673 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 10:03:37,673 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-04-05 10:03:37,673 INFO L403 AbstractCegarLoop]: === Iteration 31 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:03:37,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:03:37,674 INFO L85 PathProgramCache]: Analyzing trace with hash -863526899, now seen corresponding path program 1 times [2022-04-05 10:03:37,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:03:37,674 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329970220] [2022-04-05 10:03:37,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:03:37,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:03:37,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:03:37,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:03:37,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:03:37,786 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 121 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-04-05 10:03:37,786 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:03:37,786 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329970220] [2022-04-05 10:03:37,786 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [329970220] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 10:03:37,786 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 10:03:37,787 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 10:03:37,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833963114] [2022-04-05 10:03:37,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 10:03:37,787 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 10:03:37,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 10:03:37,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 10:03:37,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 10:03:37,788 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) [2022-04-05 10:03:40,788 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:03:42,815 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:03:44,850 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:03:45,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 10:03:45,272 INFO L93 Difference]: Finished difference Result 991 states and 1529 transitions. [2022-04-05 10:03:45,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 10:03:45,272 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 [2022-04-05 10:03:45,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 10:03:45,273 INFO L225 Difference]: With dead ends: 991 [2022-04-05 10:03:45,274 INFO L226 Difference]: Without dead ends: 586 [2022-04-05 10:03:45,274 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 10:03:45,274 INFO L913 BasicCegarLoop]: 146 mSDtfsCounter, 130 mSDsluCounter, 264 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 47 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 410 SdHoareTripleChecker+Invalid, 533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2022-04-05 10:03:45,275 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [130 Valid, 410 Invalid, 533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 483 Invalid, 3 Unknown, 0 Unchecked, 7.5s Time] [2022-04-05 10:03:45,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 586 states. [2022-04-05 10:03:45,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 586 to 495. [2022-04-05 10:03:45,283 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) [2022-04-05 10:03:45,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 495 states to 495 states and 760 transitions. [2022-04-05 10:03:45,284 INFO L78 Accepts]: Start accepts. Automaton has 495 states and 760 transitions. Word has length 139 [2022-04-05 10:03:45,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 10:03:45,284 INFO L478 AbstractCegarLoop]: Abstraction has 495 states and 760 transitions. [2022-04-05 10:03:45,284 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:03:45,284 INFO L276 IsEmpty]: Start isEmpty. Operand 495 states and 760 transitions. [2022-04-05 10:03:45,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-04-05 10:03:45,286 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:03:45,286 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 10:03:45,286 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-04-05 10:03:45,286 INFO L403 AbstractCegarLoop]: === Iteration 32 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:03:45,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:03:45,286 INFO L85 PathProgramCache]: Analyzing trace with hash -353743273, now seen corresponding path program 1 times [2022-04-05 10:03:45,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:03:45,287 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [47473493] [2022-04-05 10:03:45,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:03:45,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:03:45,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:03:45,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:03:45,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:03:45,418 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 134 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-04-05 10:03:45,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:03:45,419 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [47473493] [2022-04-05 10:03:45,419 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [47473493] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 10:03:45,419 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 10:03:45,419 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 10:03:45,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893531510] [2022-04-05 10:03:45,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 10:03:45,419 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 10:03:45,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 10:03:45,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 10:03:45,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 10:03:45,420 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) [2022-04-05 10:03:49,263 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:03:51,288 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:03:51,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 10:03:51,678 INFO L93 Difference]: Finished difference Result 1002 states and 1544 transitions. [2022-04-05 10:03:51,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 10:03:51,678 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 144 [2022-04-05 10:03:51,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 10:03:51,680 INFO L225 Difference]: With dead ends: 1002 [2022-04-05 10:03:51,681 INFO L226 Difference]: Without dead ends: 533 [2022-04-05 10:03:51,681 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 10:03:51,682 INFO L913 BasicCegarLoop]: 208 mSDtfsCounter, 71 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 499 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 541 SdHoareTripleChecker+Invalid, 508 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 499 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-04-05 10:03:51,682 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [71 Valid, 541 Invalid, 508 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 499 Invalid, 2 Unknown, 0 Unchecked, 6.2s Time] [2022-04-05 10:03:51,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 533 states. [2022-04-05 10:03:51,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 533 to 495. [2022-04-05 10:03:51,690 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) [2022-04-05 10:03:51,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 495 states to 495 states and 759 transitions. [2022-04-05 10:03:51,692 INFO L78 Accepts]: Start accepts. Automaton has 495 states and 759 transitions. Word has length 144 [2022-04-05 10:03:51,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 10:03:51,692 INFO L478 AbstractCegarLoop]: Abstraction has 495 states and 759 transitions. [2022-04-05 10:03:51,692 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:03:51,692 INFO L276 IsEmpty]: Start isEmpty. Operand 495 states and 759 transitions. [2022-04-05 10:03:51,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-04-05 10:03:51,693 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:03:51,694 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 10:03:51,694 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-04-05 10:03:51,694 INFO L403 AbstractCegarLoop]: === Iteration 33 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:03:51,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:03:51,694 INFO L85 PathProgramCache]: Analyzing trace with hash -649786349, now seen corresponding path program 1 times [2022-04-05 10:03:51,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:03:51,694 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1439386145] [2022-04-05 10:03:51,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:03:51,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:03:51,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:03:51,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:03:51,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:03:51,804 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 136 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-04-05 10:03:51,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:03:51,805 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1439386145] [2022-04-05 10:03:51,805 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1439386145] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 10:03:51,805 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 10:03:51,805 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 10:03:51,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383045052] [2022-04-05 10:03:51,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 10:03:51,805 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 10:03:51,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 10:03:51,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 10:03:51,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 10:03:51,806 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) [2022-04-05 10:03:53,452 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:03:55,089 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:03:56,557 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:03:56,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 10:03:56,983 INFO L93 Difference]: Finished difference Result 1041 states and 1598 transitions. [2022-04-05 10:03:56,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 10:03:56,983 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 145 [2022-04-05 10:03:56,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 10:03:56,985 INFO L225 Difference]: With dead ends: 1041 [2022-04-05 10:03:56,985 INFO L226 Difference]: Without dead ends: 572 [2022-04-05 10:03:56,986 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 10:03:56,986 INFO L913 BasicCegarLoop]: 130 mSDtfsCounter, 132 mSDsluCounter, 248 mSDsCounter, 0 mSdLazyCounter, 481 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s 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, 5.2s IncrementalHoareTripleChecker+Time [2022-04-05 10:03:56,986 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [132 Valid, 378 Invalid, 542 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 481 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2022-04-05 10:03:56,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 572 states. [2022-04-05 10:03:56,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 572 to 495. [2022-04-05 10:03:56,994 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) [2022-04-05 10:03:56,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 495 states to 495 states and 752 transitions. [2022-04-05 10:03:56,995 INFO L78 Accepts]: Start accepts. Automaton has 495 states and 752 transitions. Word has length 145 [2022-04-05 10:03:56,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 10:03:56,996 INFO L478 AbstractCegarLoop]: Abstraction has 495 states and 752 transitions. [2022-04-05 10:03:56,996 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:03:56,996 INFO L276 IsEmpty]: Start isEmpty. Operand 495 states and 752 transitions. [2022-04-05 10:03:56,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-04-05 10:03:56,997 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:03:56,997 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] [2022-04-05 10:03:56,997 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-04-05 10:03:56,997 INFO L403 AbstractCegarLoop]: === Iteration 34 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:03:56,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:03:56,998 INFO L85 PathProgramCache]: Analyzing trace with hash 1588807284, now seen corresponding path program 1 times [2022-04-05 10:03:56,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:03:56,998 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850395391] [2022-04-05 10:03:56,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:03:56,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:03:57,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:03:57,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:03:57,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:03:57,115 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 136 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-04-05 10:03:57,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:03:57,115 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1850395391] [2022-04-05 10:03:57,115 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1850395391] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 10:03:57,115 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 10:03:57,115 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-05 10:03:57,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326060501] [2022-04-05 10:03:57,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 10:03:57,116 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-05 10:03:57,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 10:03:57,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-05 10:03:57,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 10:03:57,116 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) [2022-04-05 10:03:58,687 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:04:00,710 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:04:01,976 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:04:02,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 10:04:02,312 INFO L93 Difference]: Finished difference Result 1428 states and 2190 transitions. [2022-04-05 10:04:02,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-05 10:04:02,313 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 [2022-04-05 10:04:02,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 10:04:02,315 INFO L225 Difference]: With dead ends: 1428 [2022-04-05 10:04:02,315 INFO L226 Difference]: Without dead ends: 959 [2022-04-05 10:04:02,316 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 10:04:02,316 INFO L913 BasicCegarLoop]: 253 mSDtfsCounter, 144 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 315 mSolverCounterSat, 16 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s 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, 5.2s IncrementalHoareTripleChecker+Time [2022-04-05 10:04:02,316 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [144 Valid, 447 Invalid, 332 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 315 Invalid, 1 Unknown, 0 Unchecked, 5.2s Time] [2022-04-05 10:04:02,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 959 states. [2022-04-05 10:04:02,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 959 to 957. [2022-04-05 10:04:02,330 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) [2022-04-05 10:04:02,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 957 states to 957 states and 1452 transitions. [2022-04-05 10:04:02,332 INFO L78 Accepts]: Start accepts. Automaton has 957 states and 1452 transitions. Word has length 146 [2022-04-05 10:04:02,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 10:04:02,332 INFO L478 AbstractCegarLoop]: Abstraction has 957 states and 1452 transitions. [2022-04-05 10:04:02,332 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) [2022-04-05 10:04:02,332 INFO L276 IsEmpty]: Start isEmpty. Operand 957 states and 1452 transitions. [2022-04-05 10:04:02,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-04-05 10:04:02,334 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:04:02,334 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] [2022-04-05 10:04:02,334 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-04-05 10:04:02,335 INFO L403 AbstractCegarLoop]: === Iteration 35 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:04:02,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:04:02,335 INFO L85 PathProgramCache]: Analyzing trace with hash -1244580013, now seen corresponding path program 1 times [2022-04-05 10:04:02,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:04:02,335 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474901645] [2022-04-05 10:04:02,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:04:02,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:04:02,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:04:02,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:04:02,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:04:02,445 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 115 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2022-04-05 10:04:02,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:04:02,446 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1474901645] [2022-04-05 10:04:02,446 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1474901645] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 10:04:02,446 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 10:04:02,446 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 10:04:02,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317675386] [2022-04-05 10:04:02,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 10:04:02,446 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 10:04:02,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 10:04:02,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 10:04:02,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 10:04:02,447 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) [2022-04-05 10:04:04,463 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:04:04,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 10:04:04,872 INFO L93 Difference]: Finished difference Result 1987 states and 3016 transitions. [2022-04-05 10:04:04,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 10:04:04,873 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 [2022-04-05 10:04:04,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 10:04:04,876 INFO L225 Difference]: With dead ends: 1987 [2022-04-05 10:04:04,876 INFO L226 Difference]: Without dead ends: 1056 [2022-04-05 10:04:04,878 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 10:04:04,878 INFO L913 BasicCegarLoop]: 242 mSDtfsCounter, 38 mSDsluCounter, 365 mSDsCounter, 0 mSdLazyCounter, 463 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 607 SdHoareTripleChecker+Invalid, 473 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 463 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-05 10:04:04,878 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 607 Invalid, 473 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 463 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-04-05 10:04:04,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1056 states. [2022-04-05 10:04:04,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1056 to 1009. [2022-04-05 10:04:04,894 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) [2022-04-05 10:04:04,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1009 states to 1009 states and 1530 transitions. [2022-04-05 10:04:04,896 INFO L78 Accepts]: Start accepts. Automaton has 1009 states and 1530 transitions. Word has length 146 [2022-04-05 10:04:04,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 10:04:04,896 INFO L478 AbstractCegarLoop]: Abstraction has 1009 states and 1530 transitions. [2022-04-05 10:04:04,896 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:04:04,896 INFO L276 IsEmpty]: Start isEmpty. Operand 1009 states and 1530 transitions. [2022-04-05 10:04:04,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-04-05 10:04:04,898 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:04:04,898 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] [2022-04-05 10:04:04,899 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-04-05 10:04:04,899 INFO L403 AbstractCegarLoop]: === Iteration 36 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:04:04,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:04:04,899 INFO L85 PathProgramCache]: Analyzing trace with hash 1093415464, now seen corresponding path program 1 times [2022-04-05 10:04:04,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:04:04,899 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574346631] [2022-04-05 10:04:04,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:04:04,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:04:04,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:04:05,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:04:05,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:04:05,014 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 130 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-04-05 10:04:05,014 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:04:05,014 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574346631] [2022-04-05 10:04:05,014 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [574346631] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 10:04:05,014 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 10:04:05,014 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 10:04:05,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375836300] [2022-04-05 10:04:05,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 10:04:05,015 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 10:04:05,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 10:04:05,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 10:04:05,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 10:04:05,016 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) [2022-04-05 10:04:06,079 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:04:07,144 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:04:08,208 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:04:08,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 10:04:08,924 INFO L93 Difference]: Finished difference Result 2063 states and 3127 transitions. [2022-04-05 10:04:08,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 10:04:08,925 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 [2022-04-05 10:04:08,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 10:04:08,927 INFO L225 Difference]: With dead ends: 2063 [2022-04-05 10:04:08,927 INFO L226 Difference]: Without dead ends: 1080 [2022-04-05 10:04:08,928 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 10:04:08,928 INFO L913 BasicCegarLoop]: 209 mSDtfsCounter, 70 mSDsluCounter, 334 mSDsCounter, 0 mSdLazyCounter, 499 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 543 SdHoareTripleChecker+Invalid, 506 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 499 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-04-05 10:04:08,929 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [70 Valid, 543 Invalid, 506 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 499 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2022-04-05 10:04:08,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1080 states. [2022-04-05 10:04:08,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1080 to 1009. [2022-04-05 10:04:08,943 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) [2022-04-05 10:04:08,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1009 states to 1009 states and 1528 transitions. [2022-04-05 10:04:08,945 INFO L78 Accepts]: Start accepts. Automaton has 1009 states and 1528 transitions. Word has length 148 [2022-04-05 10:04:08,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 10:04:08,946 INFO L478 AbstractCegarLoop]: Abstraction has 1009 states and 1528 transitions. [2022-04-05 10:04:08,946 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) [2022-04-05 10:04:08,946 INFO L276 IsEmpty]: Start isEmpty. Operand 1009 states and 1528 transitions. [2022-04-05 10:04:08,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-04-05 10:04:08,948 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:04:08,948 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] [2022-04-05 10:04:08,948 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-04-05 10:04:08,948 INFO L403 AbstractCegarLoop]: === Iteration 37 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:04:08,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:04:08,949 INFO L85 PathProgramCache]: Analyzing trace with hash -627251098, now seen corresponding path program 1 times [2022-04-05 10:04:08,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:04:08,949 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979749424] [2022-04-05 10:04:08,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:04:08,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:04:09,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:04:09,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:04:09,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:04:09,060 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-04-05 10:04:09,061 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:04:09,061 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979749424] [2022-04-05 10:04:09,061 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [979749424] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 10:04:09,061 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 10:04:09,061 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 10:04:09,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283122180] [2022-04-05 10:04:09,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 10:04:09,062 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 10:04:09,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 10:04:09,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 10:04:09,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 10:04:09,062 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) [2022-04-05 10:04:11,350 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:04:13,343 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:04:13,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 10:04:13,786 INFO L93 Difference]: Finished difference Result 2141 states and 3228 transitions. [2022-04-05 10:04:13,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 10:04:13,787 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 149 [2022-04-05 10:04:13,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 10:04:13,791 INFO L225 Difference]: With dead ends: 2141 [2022-04-05 10:04:13,791 INFO L226 Difference]: Without dead ends: 1158 [2022-04-05 10:04:13,792 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 [2022-04-05 10:04:13,793 INFO L913 BasicCegarLoop]: 130 mSDtfsCounter, 133 mSDsluCounter, 248 mSDsCounter, 0 mSdLazyCounter, 480 mSolverCounterSat, 61 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s 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, 4.7s IncrementalHoareTripleChecker+Time [2022-04-05 10:04:13,793 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [133 Valid, 378 Invalid, 542 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 480 Invalid, 1 Unknown, 0 Unchecked, 4.7s Time] [2022-04-05 10:04:13,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1158 states. [2022-04-05 10:04:13,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1158 to 1009. [2022-04-05 10:04:13,810 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) [2022-04-05 10:04:13,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1009 states to 1009 states and 1514 transitions. [2022-04-05 10:04:13,812 INFO L78 Accepts]: Start accepts. Automaton has 1009 states and 1514 transitions. Word has length 149 [2022-04-05 10:04:13,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 10:04:13,812 INFO L478 AbstractCegarLoop]: Abstraction has 1009 states and 1514 transitions. [2022-04-05 10:04:13,812 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:04:13,813 INFO L276 IsEmpty]: Start isEmpty. Operand 1009 states and 1514 transitions. [2022-04-05 10:04:13,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2022-04-05 10:04:13,815 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:04:13,815 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] [2022-04-05 10:04:13,815 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-04-05 10:04:13,815 INFO L403 AbstractCegarLoop]: === Iteration 38 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:04:13,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:04:13,815 INFO L85 PathProgramCache]: Analyzing trace with hash -1463851763, now seen corresponding path program 1 times [2022-04-05 10:04:13,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:04:13,816 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232388000] [2022-04-05 10:04:13,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:04:13,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:04:13,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:04:13,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:04:13,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:04:13,932 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 126 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-04-05 10:04:13,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:04:13,933 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232388000] [2022-04-05 10:04:13,933 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1232388000] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 10:04:13,933 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 10:04:13,933 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 10:04:13,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849547295] [2022-04-05 10:04:13,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 10:04:13,934 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 10:04:13,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 10:04:13,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 10:04:13,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 10:04:13,934 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) [2022-04-05 10:04:15,623 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:04:17,650 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:04:19,645 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:04:21,675 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:04:22,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 10:04:22,064 INFO L93 Difference]: Finished difference Result 2047 states and 3069 transitions. [2022-04-05 10:04:22,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 10:04:22,064 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 [2022-04-05 10:04:22,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 10:04:22,067 INFO L225 Difference]: With dead ends: 2047 [2022-04-05 10:04:22,067 INFO L226 Difference]: Without dead ends: 1064 [2022-04-05 10:04:22,068 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 10:04:22,068 INFO L913 BasicCegarLoop]: 218 mSDtfsCounter, 61 mSDsluCounter, 343 mSDsCounter, 0 mSdLazyCounter, 479 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 561 SdHoareTripleChecker+Invalid, 488 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 479 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2022-04-05 10:04:22,068 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [61 Valid, 561 Invalid, 488 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 479 Invalid, 2 Unknown, 0 Unchecked, 8.1s Time] [2022-04-05 10:04:22,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1064 states. [2022-04-05 10:04:22,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1064 to 1009. [2022-04-05 10:04:22,108 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) [2022-04-05 10:04:22,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1009 states to 1009 states and 1512 transitions. [2022-04-05 10:04:22,110 INFO L78 Accepts]: Start accepts. Automaton has 1009 states and 1512 transitions. Word has length 152 [2022-04-05 10:04:22,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 10:04:22,110 INFO L478 AbstractCegarLoop]: Abstraction has 1009 states and 1512 transitions. [2022-04-05 10:04:22,110 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:04:22,110 INFO L276 IsEmpty]: Start isEmpty. Operand 1009 states and 1512 transitions. [2022-04-05 10:04:22,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-04-05 10:04:22,112 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:04:22,112 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] [2022-04-05 10:04:22,112 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-04-05 10:04:22,112 INFO L403 AbstractCegarLoop]: === Iteration 39 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:04:22,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:04:22,113 INFO L85 PathProgramCache]: Analyzing trace with hash 1470705865, now seen corresponding path program 1 times [2022-04-05 10:04:22,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:04:22,113 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51853597] [2022-04-05 10:04:22,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:04:22,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:04:22,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:04:22,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:04:22,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:04:22,243 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 128 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-04-05 10:04:22,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:04:22,243 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51853597] [2022-04-05 10:04:22,243 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [51853597] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 10:04:22,243 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 10:04:22,243 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 10:04:22,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463298023] [2022-04-05 10:04:22,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 10:04:22,244 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 10:04:22,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 10:04:22,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 10:04:22,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 10:04:22,244 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) [2022-04-05 10:04:23,736 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:04:25,098 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:04:26,455 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:04:27,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 10:04:27,516 INFO L93 Difference]: Finished difference Result 2141 states and 3196 transitions. [2022-04-05 10:04:27,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 10:04:27,516 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 [2022-04-05 10:04:27,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 10:04:27,519 INFO L225 Difference]: With dead ends: 2141 [2022-04-05 10:04:27,519 INFO L226 Difference]: Without dead ends: 1158 [2022-04-05 10:04:27,520 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 10:04:27,520 INFO L913 BasicCegarLoop]: 130 mSDtfsCounter, 134 mSDsluCounter, 248 mSDsCounter, 0 mSdLazyCounter, 481 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 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, 5.2s IncrementalHoareTripleChecker+Time [2022-04-05 10:04:27,520 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [134 Valid, 378 Invalid, 542 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 481 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2022-04-05 10:04:27,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1158 states. [2022-04-05 10:04:27,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1158 to 1009. [2022-04-05 10:04:27,537 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) [2022-04-05 10:04:27,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1009 states to 1009 states and 1498 transitions. [2022-04-05 10:04:27,539 INFO L78 Accepts]: Start accepts. Automaton has 1009 states and 1498 transitions. Word has length 153 [2022-04-05 10:04:27,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 10:04:27,539 INFO L478 AbstractCegarLoop]: Abstraction has 1009 states and 1498 transitions. [2022-04-05 10:04:27,539 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:04:27,539 INFO L276 IsEmpty]: Start isEmpty. Operand 1009 states and 1498 transitions. [2022-04-05 10:04:27,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-04-05 10:04:27,541 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:04:27,541 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] [2022-04-05 10:04:27,542 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-04-05 10:04:27,542 INFO L403 AbstractCegarLoop]: === Iteration 40 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:04:27,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:04:27,542 INFO L85 PathProgramCache]: Analyzing trace with hash 1804153017, now seen corresponding path program 1 times [2022-04-05 10:04:27,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:04:27,542 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934254817] [2022-04-05 10:04:27,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:04:27,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:04:27,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:04:27,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:04:27,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:04:27,653 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 140 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-04-05 10:04:27,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:04:27,653 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934254817] [2022-04-05 10:04:27,653 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [934254817] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 10:04:27,653 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 10:04:27,654 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 10:04:27,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797695892] [2022-04-05 10:04:27,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 10:04:27,654 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 10:04:27,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 10:04:27,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 10:04:27,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 10:04:27,655 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) [2022-04-05 10:04:29,587 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.93s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:04:31,474 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:04:33,863 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:04:34,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 10:04:34,280 INFO L93 Difference]: Finished difference Result 2043 states and 3031 transitions. [2022-04-05 10:04:34,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 10:04:34,281 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 [2022-04-05 10:04:34,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 10:04:34,284 INFO L225 Difference]: With dead ends: 2043 [2022-04-05 10:04:34,284 INFO L226 Difference]: Without dead ends: 1060 [2022-04-05 10:04:34,285 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 10:04:34,286 INFO L913 BasicCegarLoop]: 221 mSDtfsCounter, 51 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 474 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 567 SdHoareTripleChecker+Invalid, 482 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 474 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2022-04-05 10:04:34,286 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [51 Valid, 567 Invalid, 482 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 474 Invalid, 1 Unknown, 0 Unchecked, 6.6s Time] [2022-04-05 10:04:34,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1060 states. [2022-04-05 10:04:34,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1060 to 1009. [2022-04-05 10:04:34,302 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) [2022-04-05 10:04:34,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1009 states to 1009 states and 1496 transitions. [2022-04-05 10:04:34,304 INFO L78 Accepts]: Start accepts. Automaton has 1009 states and 1496 transitions. Word has length 156 [2022-04-05 10:04:34,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 10:04:34,304 INFO L478 AbstractCegarLoop]: Abstraction has 1009 states and 1496 transitions. [2022-04-05 10:04:34,304 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:04:34,304 INFO L276 IsEmpty]: Start isEmpty. Operand 1009 states and 1496 transitions. [2022-04-05 10:04:34,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-04-05 10:04:34,306 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:04:34,307 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] [2022-04-05 10:04:34,307 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-04-05 10:04:34,307 INFO L403 AbstractCegarLoop]: === Iteration 41 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:04:34,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:04:34,307 INFO L85 PathProgramCache]: Analyzing trace with hash 1187930418, now seen corresponding path program 1 times [2022-04-05 10:04:34,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:04:34,307 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084300537] [2022-04-05 10:04:34,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:04:34,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:04:34,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:04:34,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:04:34,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:04:34,455 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 144 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-04-05 10:04:34,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:04:34,456 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084300537] [2022-04-05 10:04:34,456 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2084300537] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 10:04:34,456 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 10:04:34,456 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 10:04:34,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811023859] [2022-04-05 10:04:34,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 10:04:34,456 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 10:04:34,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 10:04:34,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 10:04:34,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 10:04:34,459 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) [2022-04-05 10:04:36,086 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:04:38,917 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:04:39,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 10:04:39,378 INFO L93 Difference]: Finished difference Result 2225 states and 3292 transitions. [2022-04-05 10:04:39,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 10:04:39,378 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 [2022-04-05 10:04:39,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 10:04:39,382 INFO L225 Difference]: With dead ends: 2225 [2022-04-05 10:04:39,382 INFO L226 Difference]: Without dead ends: 1242 [2022-04-05 10:04:39,383 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 10:04:39,384 INFO L913 BasicCegarLoop]: 130 mSDtfsCounter, 125 mSDsluCounter, 248 mSDsCounter, 0 mSdLazyCounter, 481 mSolverCounterSat, 59 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 481 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-04-05 10:04:39,384 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [125 Valid, 378 Invalid, 541 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 481 Invalid, 1 Unknown, 0 Unchecked, 4.9s Time] [2022-04-05 10:04:39,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1242 states. [2022-04-05 10:04:39,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1242 to 1079. [2022-04-05 10:04:39,400 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) [2022-04-05 10:04:39,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1079 states to 1079 states and 1594 transitions. [2022-04-05 10:04:39,402 INFO L78 Accepts]: Start accepts. Automaton has 1079 states and 1594 transitions. Word has length 156 [2022-04-05 10:04:39,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 10:04:39,403 INFO L478 AbstractCegarLoop]: Abstraction has 1079 states and 1594 transitions. [2022-04-05 10:04:39,403 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:04:39,403 INFO L276 IsEmpty]: Start isEmpty. Operand 1079 states and 1594 transitions. [2022-04-05 10:04:39,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2022-04-05 10:04:39,405 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:04:39,405 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] [2022-04-05 10:04:39,405 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-04-05 10:04:39,405 INFO L403 AbstractCegarLoop]: === Iteration 42 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:04:39,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:04:39,406 INFO L85 PathProgramCache]: Analyzing trace with hash 72810464, now seen corresponding path program 1 times [2022-04-05 10:04:39,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:04:39,406 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648182077] [2022-04-05 10:04:39,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:04:39,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:04:39,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:04:39,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:04:39,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:04:39,519 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 142 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-04-05 10:04:39,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:04:39,519 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1648182077] [2022-04-05 10:04:39,519 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1648182077] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 10:04:39,519 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 10:04:39,519 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 10:04:39,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763598376] [2022-04-05 10:04:39,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 10:04:39,520 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 10:04:39,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 10:04:39,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 10:04:39,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 10:04:39,520 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) [2022-04-05 10:04:41,209 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:04:43,232 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:04:45,257 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:04:47,280 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:04:47,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 10:04:47,655 INFO L93 Difference]: Finished difference Result 2171 states and 3207 transitions. [2022-04-05 10:04:47,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 10:04:47,655 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 [2022-04-05 10:04:47,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 10:04:47,658 INFO L225 Difference]: With dead ends: 2171 [2022-04-05 10:04:47,658 INFO L226 Difference]: Without dead ends: 1118 [2022-04-05 10:04:47,659 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 10:04:47,660 INFO L913 BasicCegarLoop]: 223 mSDtfsCounter, 41 mSDsluCounter, 348 mSDsCounter, 0 mSdLazyCounter, 468 mSolverCounterSat, 7 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 571 SdHoareTripleChecker+Invalid, 478 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 468 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2022-04-05 10:04:47,660 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [41 Valid, 571 Invalid, 478 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 468 Invalid, 3 Unknown, 0 Unchecked, 8.1s Time] [2022-04-05 10:04:47,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1118 states. [2022-04-05 10:04:47,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1118 to 1079. [2022-04-05 10:04:47,673 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) [2022-04-05 10:04:47,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1079 states to 1079 states and 1592 transitions. [2022-04-05 10:04:47,675 INFO L78 Accepts]: Start accepts. Automaton has 1079 states and 1592 transitions. Word has length 157 [2022-04-05 10:04:47,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 10:04:47,675 INFO L478 AbstractCegarLoop]: Abstraction has 1079 states and 1592 transitions. [2022-04-05 10:04:47,676 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:04:47,676 INFO L276 IsEmpty]: Start isEmpty. Operand 1079 states and 1592 transitions. [2022-04-05 10:04:47,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2022-04-05 10:04:47,678 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:04:47,678 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] [2022-04-05 10:04:47,678 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-04-05 10:04:47,678 INFO L403 AbstractCegarLoop]: === Iteration 43 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:04:47,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:04:47,679 INFO L85 PathProgramCache]: Analyzing trace with hash -1360449574, now seen corresponding path program 1 times [2022-04-05 10:04:47,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:04:47,679 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480137847] [2022-04-05 10:04:47,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:04:47,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:04:47,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:04:47,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:04:47,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:04:47,815 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 146 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-04-05 10:04:47,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:04:47,816 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1480137847] [2022-04-05 10:04:47,816 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1480137847] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 10:04:47,816 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 10:04:47,816 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 10:04:47,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156501215] [2022-04-05 10:04:47,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 10:04:47,817 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 10:04:47,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 10:04:47,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 10:04:47,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 10:04:47,818 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) [2022-04-05 10:04:49,508 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:04:51,528 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:04:53,554 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:04:53,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 10:04:53,956 INFO L93 Difference]: Finished difference Result 2165 states and 3196 transitions. [2022-04-05 10:04:53,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 10:04:53,956 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 [2022-04-05 10:04:53,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 10:04:53,959 INFO L225 Difference]: With dead ends: 2165 [2022-04-05 10:04:53,959 INFO L226 Difference]: Without dead ends: 1112 [2022-04-05 10:04:53,960 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 10:04:53,960 INFO L913 BasicCegarLoop]: 224 mSDtfsCounter, 35 mSDsluCounter, 349 mSDsCounter, 0 mSdLazyCounter, 467 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s 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, 6.1s IncrementalHoareTripleChecker+Time [2022-04-05 10:04:53,961 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [35 Valid, 573 Invalid, 476 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 467 Invalid, 2 Unknown, 0 Unchecked, 6.1s Time] [2022-04-05 10:04:53,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1112 states. [2022-04-05 10:04:53,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1112 to 1079. [2022-04-05 10:04:53,975 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) [2022-04-05 10:04:53,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1079 states to 1079 states and 1590 transitions. [2022-04-05 10:04:53,977 INFO L78 Accepts]: Start accepts. Automaton has 1079 states and 1590 transitions. Word has length 157 [2022-04-05 10:04:53,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 10:04:53,977 INFO L478 AbstractCegarLoop]: Abstraction has 1079 states and 1590 transitions. [2022-04-05 10:04:53,977 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:04:53,977 INFO L276 IsEmpty]: Start isEmpty. Operand 1079 states and 1590 transitions. [2022-04-05 10:04:53,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2022-04-05 10:04:53,979 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:04:53,979 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] [2022-04-05 10:04:53,980 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-04-05 10:04:53,980 INFO L403 AbstractCegarLoop]: === Iteration 44 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:04:53,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:04:53,980 INFO L85 PathProgramCache]: Analyzing trace with hash -195278239, now seen corresponding path program 1 times [2022-04-05 10:04:53,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:04:53,980 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618872330] [2022-04-05 10:04:53,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:04:53,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:04:54,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:04:54,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:04:54,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:04:54,099 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 141 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-04-05 10:04:54,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:04:54,099 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [618872330] [2022-04-05 10:04:54,099 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [618872330] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 10:04:54,099 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 10:04:54,099 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 10:04:54,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686903725] [2022-04-05 10:04:54,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 10:04:54,100 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 10:04:54,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 10:04:54,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 10:04:54,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 10:04:54,101 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) [2022-04-05 10:04:55,221 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:04:57,240 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:04:59,267 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:05:00,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 10:05:00,161 INFO L93 Difference]: Finished difference Result 2159 states and 3186 transitions. [2022-04-05 10:05:00,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 10:05:00,161 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 [2022-04-05 10:05:00,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 10:05:00,164 INFO L225 Difference]: With dead ends: 2159 [2022-04-05 10:05:00,164 INFO L226 Difference]: Without dead ends: 1106 [2022-04-05 10:05:00,166 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 10:05:00,166 INFO L913 BasicCegarLoop]: 246 mSDtfsCounter, 41 mSDsluCounter, 369 mSDsCounter, 0 mSdLazyCounter, 443 mSolverCounterSat, 5 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 615 SdHoareTripleChecker+Invalid, 450 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 443 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-04-05 10:05:00,166 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [41 Valid, 615 Invalid, 450 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 443 Invalid, 2 Unknown, 0 Unchecked, 6.0s Time] [2022-04-05 10:05:00,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1106 states. [2022-04-05 10:05:00,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1106 to 1079. [2022-04-05 10:05:00,183 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) [2022-04-05 10:05:00,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1079 states to 1079 states and 1588 transitions. [2022-04-05 10:05:00,184 INFO L78 Accepts]: Start accepts. Automaton has 1079 states and 1588 transitions. Word has length 164 [2022-04-05 10:05:00,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 10:05:00,185 INFO L478 AbstractCegarLoop]: Abstraction has 1079 states and 1588 transitions. [2022-04-05 10:05:00,185 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:05:00,185 INFO L276 IsEmpty]: Start isEmpty. Operand 1079 states and 1588 transitions. [2022-04-05 10:05:00,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-04-05 10:05:00,187 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:05:00,187 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] [2022-04-05 10:05:00,187 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-04-05 10:05:00,187 INFO L403 AbstractCegarLoop]: === Iteration 45 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:05:00,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:05:00,187 INFO L85 PathProgramCache]: Analyzing trace with hash -170870402, now seen corresponding path program 1 times [2022-04-05 10:05:00,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:05:00,188 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020295461] [2022-04-05 10:05:00,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:05:00,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:05:00,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:05:00,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:05:00,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:05:00,310 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2022-04-05 10:05:00,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:05:00,310 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1020295461] [2022-04-05 10:05:00,310 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1020295461] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 10:05:00,310 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 10:05:00,310 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-05 10:05:00,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986298709] [2022-04-05 10:05:00,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 10:05:00,311 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-05 10:05:00,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 10:05:00,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-05 10:05:00,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 10:05:00,311 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) [2022-04-05 10:05:02,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 10:05:02,575 INFO L93 Difference]: Finished difference Result 2159 states and 3183 transitions. [2022-04-05 10:05:02,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-05 10:05:02,576 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 [2022-04-05 10:05:02,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 10:05:02,579 INFO L225 Difference]: With dead ends: 2159 [2022-04-05 10:05:02,579 INFO L226 Difference]: Without dead ends: 1106 [2022-04-05 10:05:02,580 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 10:05:02,581 INFO L913 BasicCegarLoop]: 233 mSDtfsCounter, 15 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 270 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 427 SdHoareTripleChecker+Invalid, 273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-04-05 10:05:02,581 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 427 Invalid, 273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 270 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-04-05 10:05:02,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1106 states. [2022-04-05 10:05:02,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1106 to 1106. [2022-04-05 10:05:02,595 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) [2022-04-05 10:05:02,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1106 states to 1106 states and 1623 transitions. [2022-04-05 10:05:02,596 INFO L78 Accepts]: Start accepts. Automaton has 1106 states and 1623 transitions. Word has length 165 [2022-04-05 10:05:02,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 10:05:02,597 INFO L478 AbstractCegarLoop]: Abstraction has 1106 states and 1623 transitions. [2022-04-05 10:05:02,597 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) [2022-04-05 10:05:02,597 INFO L276 IsEmpty]: Start isEmpty. Operand 1106 states and 1623 transitions. [2022-04-05 10:05:02,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-04-05 10:05:02,599 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:05:02,599 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] [2022-04-05 10:05:02,599 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-04-05 10:05:02,599 INFO L403 AbstractCegarLoop]: === Iteration 46 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:05:02,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:05:02,600 INFO L85 PathProgramCache]: Analyzing trace with hash -1064805313, now seen corresponding path program 1 times [2022-04-05 10:05:02,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:05:02,600 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804696231] [2022-04-05 10:05:02,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:05:02,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:05:02,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:05:02,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:05:02,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:05:02,692 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2022-04-05 10:05:02,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:05:02,692 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804696231] [2022-04-05 10:05:02,693 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [804696231] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 10:05:02,693 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 10:05:02,693 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-05 10:05:02,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796430292] [2022-04-05 10:05:02,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 10:05:02,693 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-05 10:05:02,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 10:05:02,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-05 10:05:02,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 10:05:02,694 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) [2022-04-05 10:05:04,709 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:05:04,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 10:05:04,946 INFO L93 Difference]: Finished difference Result 2188 states and 3219 transitions. [2022-04-05 10:05:04,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-05 10:05:04,947 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 [2022-04-05 10:05:04,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 10:05:04,949 INFO L225 Difference]: With dead ends: 2188 [2022-04-05 10:05:04,949 INFO L226 Difference]: Without dead ends: 1108 [2022-04-05 10:05:04,950 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 10:05:04,951 INFO L913 BasicCegarLoop]: 221 mSDtfsCounter, 4 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 406 SdHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-04-05 10:05:04,951 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 406 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 253 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2022-04-05 10:05:04,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1108 states. [2022-04-05 10:05:04,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1108 to 1108. [2022-04-05 10:05:04,968 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) [2022-04-05 10:05:04,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1108 states to 1108 states and 1625 transitions. [2022-04-05 10:05:04,969 INFO L78 Accepts]: Start accepts. Automaton has 1108 states and 1625 transitions. Word has length 165 [2022-04-05 10:05:04,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 10:05:04,970 INFO L478 AbstractCegarLoop]: Abstraction has 1108 states and 1625 transitions. [2022-04-05 10:05:04,970 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) [2022-04-05 10:05:04,970 INFO L276 IsEmpty]: Start isEmpty. Operand 1108 states and 1625 transitions. [2022-04-05 10:05:04,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2022-04-05 10:05:04,971 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:05:04,972 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] [2022-04-05 10:05:04,972 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-04-05 10:05:04,972 INFO L403 AbstractCegarLoop]: === Iteration 47 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:05:04,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:05:04,972 INFO L85 PathProgramCache]: Analyzing trace with hash -1588960868, now seen corresponding path program 1 times [2022-04-05 10:05:04,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:05:04,973 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679366046] [2022-04-05 10:05:04,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:05:04,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:05:05,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:05:05,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:05:05,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:05:05,088 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 156 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-04-05 10:05:05,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:05:05,088 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [679366046] [2022-04-05 10:05:05,088 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [679366046] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 10:05:05,089 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 10:05:05,089 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 10:05:05,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095385699] [2022-04-05 10:05:05,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 10:05:05,089 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 10:05:05,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 10:05:05,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 10:05:05,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 10:05:05,090 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) [2022-04-05 10:05:06,459 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:05:08,528 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:05:08,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 10:05:08,976 INFO L93 Difference]: Finished difference Result 2284 states and 3346 transitions. [2022-04-05 10:05:08,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 10:05:08,977 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 [2022-04-05 10:05:08,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 10:05:08,979 INFO L225 Difference]: With dead ends: 2284 [2022-04-05 10:05:08,979 INFO L226 Difference]: Without dead ends: 1204 [2022-04-05 10:05:08,980 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 10:05:08,981 INFO L913 BasicCegarLoop]: 233 mSDtfsCounter, 76 mSDsluCounter, 355 mSDsCounter, 0 mSdLazyCounter, 553 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 588 SdHoareTripleChecker+Invalid, 562 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 553 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-04-05 10:05:08,981 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [76 Valid, 588 Invalid, 562 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 553 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2022-04-05 10:05:08,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1204 states. [2022-04-05 10:05:08,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1204 to 1108. [2022-04-05 10:05:08,992 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) [2022-04-05 10:05:08,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1108 states to 1108 states and 1623 transitions. [2022-04-05 10:05:08,993 INFO L78 Accepts]: Start accepts. Automaton has 1108 states and 1623 transitions. Word has length 166 [2022-04-05 10:05:08,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 10:05:08,994 INFO L478 AbstractCegarLoop]: Abstraction has 1108 states and 1623 transitions. [2022-04-05 10:05:08,994 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) [2022-04-05 10:05:08,994 INFO L276 IsEmpty]: Start isEmpty. Operand 1108 states and 1623 transitions. [2022-04-05 10:05:08,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2022-04-05 10:05:08,995 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:05:08,995 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] [2022-04-05 10:05:08,996 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-04-05 10:05:08,996 INFO L403 AbstractCegarLoop]: === Iteration 48 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:05:08,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:05:08,996 INFO L85 PathProgramCache]: Analyzing trace with hash 1891628692, now seen corresponding path program 1 times [2022-04-05 10:05:08,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:05:08,996 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2110481678] [2022-04-05 10:05:08,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:05:08,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:05:09,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:05:09,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:05:09,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:05:09,368 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2022-04-05 10:05:09,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:05:09,369 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2110481678] [2022-04-05 10:05:09,369 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2110481678] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 10:05:09,369 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 10:05:09,369 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-04-05 10:05:09,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497186552] [2022-04-05 10:05:09,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 10:05:09,370 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-04-05 10:05:09,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 10:05:09,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-04-05 10:05:09,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-04-05 10:05:09,370 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) [2022-04-05 10:05:11,252 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:05:13,999 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:05:16,024 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:05:17,083 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:05:17,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 10:05:17,553 INFO L93 Difference]: Finished difference Result 2209 states and 3238 transitions. [2022-04-05 10:05:17,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-04-05 10:05:17,553 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 [2022-04-05 10:05:17,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 10:05:17,555 INFO L225 Difference]: With dead ends: 2209 [2022-04-05 10:05:17,556 INFO L226 Difference]: Without dead ends: 1108 [2022-04-05 10:05:17,557 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-04-05 10:05:17,557 INFO L913 BasicCegarLoop]: 219 mSDtfsCounter, 7 mSDsluCounter, 672 mSDsCounter, 0 mSdLazyCounter, 453 mSolverCounterSat, 4 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 891 SdHoareTripleChecker+Invalid, 459 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 453 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2022-04-05 10:05:17,558 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 891 Invalid, 459 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 453 Invalid, 2 Unknown, 0 Unchecked, 8.1s Time] [2022-04-05 10:05:17,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1108 states. [2022-04-05 10:05:17,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1108 to 1108. [2022-04-05 10:05:17,570 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) [2022-04-05 10:05:17,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1108 states to 1108 states and 1622 transitions. [2022-04-05 10:05:17,572 INFO L78 Accepts]: Start accepts. Automaton has 1108 states and 1622 transitions. Word has length 174 [2022-04-05 10:05:17,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 10:05:17,572 INFO L478 AbstractCegarLoop]: Abstraction has 1108 states and 1622 transitions. [2022-04-05 10:05:17,572 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) [2022-04-05 10:05:17,572 INFO L276 IsEmpty]: Start isEmpty. Operand 1108 states and 1622 transitions. [2022-04-05 10:05:17,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2022-04-05 10:05:17,574 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:05:17,574 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] [2022-04-05 10:05:17,574 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-04-05 10:05:17,574 INFO L403 AbstractCegarLoop]: === Iteration 49 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:05:17,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:05:17,575 INFO L85 PathProgramCache]: Analyzing trace with hash 1546712947, now seen corresponding path program 1 times [2022-04-05 10:05:17,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:05:17,575 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316337150] [2022-04-05 10:05:17,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:05:17,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:05:17,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:05:18,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:05:18,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:05:18,431 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 14 proven. 169 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-04-05 10:05:18,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:05:18,432 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316337150] [2022-04-05 10:05:18,432 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [316337150] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-05 10:05:18,432 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [610841682] [2022-04-05 10:05:18,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:05:18,432 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-05 10:05:18,432 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-05 10:05:18,435 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-05 10:05:18,454 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-04-05 10:05:19,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:05:19,395 INFO L263 TraceCheckSpWp]: Trace formula consists of 1149 conjuncts, 189 conjunts are in the unsatisfiable core [2022-04-05 10:05:19,415 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-05 10:05:19,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:05:19,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:05:19,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:05:19,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:05:19,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:05:19,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:05:19,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:05:19,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:05:19,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:05:19,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:05:19,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:05:19,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:05:19,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:05:19,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:05:19,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:05:19,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:05:19,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:05:19,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:05:19,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:05:19,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:05:19,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:05:19,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:05:19,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:05:19,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:05:19,613 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