/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.15.i.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-7968f31 [2022-03-17 23:39:37,827 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-17 23:39:37,828 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-17 23:39:37,893 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-17 23:39:37,893 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-17 23:39:37,894 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-17 23:39:37,895 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-17 23:39:37,896 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-17 23:39:37,897 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-17 23:39:37,898 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-17 23:39:37,898 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-17 23:39:37,899 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-17 23:39:37,899 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-17 23:39:37,900 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-17 23:39:37,901 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-17 23:39:37,901 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-17 23:39:37,902 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-17 23:39:37,903 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-17 23:39:37,912 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-17 23:39:37,917 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-17 23:39:37,920 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-03-17 23:39:37,923 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-17 23:39:37,924 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-17 23:39:37,926 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-17 23:39:37,927 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-17 23:39:37,928 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-03-17 23:39:37,928 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-03-17 23:39:37,929 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-03-17 23:39:37,929 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-03-17 23:39:37,929 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-03-17 23:39:37,930 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2022-03-17 23:39:37,937 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-17 23:39:37,937 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-17 23:39:37,939 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-17 23:39:37,939 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/loopacceleration/qvasr/qvasr_64.epf [2022-03-17 23:39:37,962 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-17 23:39:37,962 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-17 23:39:37,963 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-17 23:39:37,963 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-17 23:39:37,964 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-17 23:39:37,964 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-17 23:39:37,964 INFO L138 SettingsManager]: * Use SBE=true [2022-03-17 23:39:37,965 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-17 23:39:37,965 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-17 23:39:37,965 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-17 23:39:37,966 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-17 23:39:37,966 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-17 23:39:37,966 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-17 23:39:37,966 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-17 23:39:37,966 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-17 23:39:37,966 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-17 23:39:37,966 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-17 23:39:37,966 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-17 23:39:37,967 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-17 23:39:37,967 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-17 23:39:37,967 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-17 23:39:37,967 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-17 23:39:37,967 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-17 23:39:37,967 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-17 23:39:37,968 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-17 23:39:37,968 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-17 23:39:37,968 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-03-17 23:39:37,968 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-03-17 23:39:37,969 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-03-17 23:39:37,969 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-03-17 23:39:38,143 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-17 23:39:38,158 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-17 23:39:38,160 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-17 23:39:38,161 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-17 23:39:38,162 INFO L275 PluginConnector]: CDTParser initialized [2022-03-17 23:39:38,163 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl/s3_srvr.blast.15.i.cil-1.c [2022-03-17 23:39:38,225 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9c50ea211/746255675ce440a9bf3b99de23dd19a1/FLAGce5a07d63 [2022-03-17 23:39:38,647 INFO L306 CDTParser]: Found 1 translation units. [2022-03-17 23:39:38,648 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.15.i.cil-1.c [2022-03-17 23:39:38,658 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9c50ea211/746255675ce440a9bf3b99de23dd19a1/FLAGce5a07d63 [2022-03-17 23:39:38,667 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9c50ea211/746255675ce440a9bf3b99de23dd19a1 [2022-03-17 23:39:38,668 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-17 23:39:38,669 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-17 23:39:38,675 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-17 23:39:38,675 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-17 23:39:38,678 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-17 23:39:38,678 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 11:39:38" (1/1) ... [2022-03-17 23:39:38,679 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e229155 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:39:38, skipping insertion in model container [2022-03-17 23:39:38,679 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 11:39:38" (1/1) ... [2022-03-17 23:39:38,683 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-17 23:39:38,716 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-17 23:39:39,002 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.15.i.cil-1.c[75550,75563] [2022-03-17 23:39:39,008 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-17 23:39:39,016 INFO L203 MainTranslator]: Completed pre-run [2022-03-17 23:39:39,136 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.15.i.cil-1.c[75550,75563] [2022-03-17 23:39:39,143 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-17 23:39:39,156 INFO L208 MainTranslator]: Completed translation [2022-03-17 23:39:39,156 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:39:39 WrapperNode [2022-03-17 23:39:39,157 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-17 23:39:39,158 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-17 23:39:39,159 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-17 23:39:39,159 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-17 23:39:39,166 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:39:39" (1/1) ... [2022-03-17 23:39:39,166 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:39:39" (1/1) ... [2022-03-17 23:39:39,193 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:39:39" (1/1) ... [2022-03-17 23:39:39,193 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:39:39" (1/1) ... [2022-03-17 23:39:39,236 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:39:39" (1/1) ... [2022-03-17 23:39:39,252 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:39:39" (1/1) ... [2022-03-17 23:39:39,254 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:39:39" (1/1) ... [2022-03-17 23:39:39,262 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-17 23:39:39,263 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-17 23:39:39,263 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-17 23:39:39,263 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-17 23:39:39,263 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:39:39" (1/1) ... [2022-03-17 23:39:39,268 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-17 23:39:39,277 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-17 23:39:39,286 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) [2022-03-17 23:39:39,303 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 [2022-03-17 23:39:39,312 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-03-17 23:39:39,323 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-17 23:39:39,323 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-03-17 23:39:39,324 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_server_method [2022-03-17 23:39:39,324 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_server_method [2022-03-17 23:39:39,324 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-03-17 23:39:39,324 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-03-17 23:39:39,324 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-03-17 23:39:39,324 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-03-17 23:39:39,324 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-03-17 23:39:39,324 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-03-17 23:39:39,324 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-03-17 23:39:39,324 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-03-17 23:39:39,324 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-17 23:39:39,324 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-03-17 23:39:39,325 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-03-17 23:39:39,325 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-03-17 23:39:39,325 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-03-17 23:39:39,325 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-03-17 23:39:39,325 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-03-17 23:39:39,325 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_server_method [2022-03-17 23:39:39,325 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-03-17 23:39:39,325 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-03-17 23:39:39,325 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_server_method [2022-03-17 23:39:39,325 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-03-17 23:39:39,325 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-03-17 23:39:39,325 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-03-17 23:39:39,325 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-03-17 23:39:39,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-17 23:39:39,326 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-03-17 23:39:39,326 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-17 23:39:39,326 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-03-17 23:39:39,326 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-03-17 23:39:39,326 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-03-17 23:39:39,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-17 23:39:39,326 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-17 23:39:39,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-03-17 23:39:39,326 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-03-17 23:39:39,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-03-17 23:39:39,326 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-03-17 23:39:39,326 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-17 23:39:39,430 INFO L234 CfgBuilder]: Building ICFG [2022-03-17 23:39:39,431 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-17 23:39:40,428 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-17 23:39:40,758 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2022-03-17 23:39:40,759 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2022-03-17 23:39:40,771 INFO L275 CfgBuilder]: Performing block encoding [2022-03-17 23:39:40,776 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-17 23:39:40,777 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-03-17 23:39:40,778 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.03 11:39:40 BoogieIcfgContainer [2022-03-17 23:39:40,778 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-17 23:39:40,779 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-03-17 23:39:40,779 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-03-17 23:39:40,780 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-03-17 23:39:40,782 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.03 11:39:40" (1/1) ... [2022-03-17 23:39:40,811 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 17.03 11:39:40 BasicIcfg [2022-03-17 23:39:40,811 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-03-17 23:39:40,812 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-17 23:39:40,812 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-17 23:39:40,814 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-17 23:39:40,815 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.03 11:39:38" (1/4) ... [2022-03-17 23:39:40,815 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@82fe8b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 11:39:40, skipping insertion in model container [2022-03-17 23:39:40,815 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:39:39" (2/4) ... [2022-03-17 23:39:40,815 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@82fe8b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 11:39:40, skipping insertion in model container [2022-03-17 23:39:40,816 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.03 11:39:40" (3/4) ... [2022-03-17 23:39:40,816 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@82fe8b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.03 11:39:40, skipping insertion in model container [2022-03-17 23:39:40,816 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 17.03 11:39:40" (4/4) ... [2022-03-17 23:39:40,817 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr.blast.15.i.cil-1.cqvasr [2022-03-17 23:39:40,820 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-17 23:39:40,821 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-17 23:39:40,849 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-17 23:39:40,853 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 [2022-03-17 23:39:40,853 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-03-17 23:39:40,865 INFO L276 IsEmpty]: Start isEmpty. Operand has 161 states, 153 states have (on average 1.7124183006535947) internal successors, (262), 154 states have internal predecessors, (262), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-03-17 23:39:40,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-03-17 23:39:40,870 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:39:40,870 INFO L500 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:39:40,871 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:39:40,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:39:40,874 INFO L85 PathProgramCache]: Analyzing trace with hash 588345913, now seen corresponding path program 1 times [2022-03-17 23:39:40,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:39:40,880 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1257552122] [2022-03-17 23:39:40,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:39:40,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:39:41,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:39:41,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:39:41,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:39:41,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 23:39:41,352 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:39:41,352 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1257552122] [2022-03-17 23:39:41,353 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1257552122] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:39:41,353 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:39:41,353 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:39:41,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455770785] [2022-03-17 23:39:41,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:39:41,357 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:39:41,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:39:41,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:39:41,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:39:41,374 INFO L87 Difference]: Start difference. First operand has 161 states, 153 states have (on average 1.7124183006535947) internal successors, (262), 154 states have internal predecessors, (262), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:39:43,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:39:43,262 INFO L93 Difference]: Finished difference Result 340 states and 572 transitions. [2022-03-17 23:39:43,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:39:43,264 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 50 [2022-03-17 23:39:43,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:39:43,270 INFO L225 Difference]: With dead ends: 340 [2022-03-17 23:39:43,271 INFO L226 Difference]: Without dead ends: 173 [2022-03-17 23:39:43,273 INFO L911 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 [2022-03-17 23:39:43,275 INFO L912 BasicCegarLoop]: 235 mSDtfsCounter, 34 mSDsluCounter, 390 mSDsCounter, 0 mSdLazyCounter, 421 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 625 SdHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-03-17 23:39:43,276 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 625 Invalid, 432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 421 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-03-17 23:39:43,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2022-03-17 23:39:43,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 156. [2022-03-17 23:39:43,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 151 states have (on average 1.5629139072847682) internal successors, (236), 151 states have internal predecessors, (236), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:39:43,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 240 transitions. [2022-03-17 23:39:43,324 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 240 transitions. Word has length 50 [2022-03-17 23:39:43,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:39:43,324 INFO L478 AbstractCegarLoop]: Abstraction has 156 states and 240 transitions. [2022-03-17 23:39:43,324 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:39:43,325 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 240 transitions. [2022-03-17 23:39:43,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-03-17 23:39:43,331 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:39:43,331 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:39:43,331 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-17 23:39:43,332 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:39:43,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:39:43,332 INFO L85 PathProgramCache]: Analyzing trace with hash 566970957, now seen corresponding path program 1 times [2022-03-17 23:39:43,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:39:43,332 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287297846] [2022-03-17 23:39:43,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:39:43,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:39:43,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:39:43,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:39:43,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:39:43,565 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 23:39:43,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:39:43,566 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287297846] [2022-03-17 23:39:43,569 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [287297846] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:39:43,569 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:39:43,569 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:39:43,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860200622] [2022-03-17 23:39:43,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:39:43,570 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:39:43,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:39:43,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:39:43,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:39:43,571 INFO L87 Difference]: Start difference. First operand 156 states and 240 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) [2022-03-17 23:39:46,024 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:39:47,806 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:39:49,827 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:39:50,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:39:50,455 INFO L93 Difference]: Finished difference Result 405 states and 628 transitions. [2022-03-17 23:39:50,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:39:50,456 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 [2022-03-17 23:39:50,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:39:50,457 INFO L225 Difference]: With dead ends: 405 [2022-03-17 23:39:50,457 INFO L226 Difference]: Without dead ends: 275 [2022-03-17 23:39:50,458 INFO L911 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 [2022-03-17 23:39:50,459 INFO L912 BasicCegarLoop]: 269 mSDtfsCounter, 147 mSDsluCounter, 383 mSDsCounter, 0 mSdLazyCounter, 630 mSolverCounterSat, 46 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 652 SdHoareTripleChecker+Invalid, 678 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 630 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2022-03-17 23:39:50,459 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [147 Valid, 652 Invalid, 678 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 630 Invalid, 2 Unknown, 0 Unchecked, 6.8s Time] [2022-03-17 23:39:50,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2022-03-17 23:39:50,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 172. [2022-03-17 23:39:50,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 167 states have (on average 1.562874251497006) internal successors, (261), 167 states have internal predecessors, (261), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:39:50,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 265 transitions. [2022-03-17 23:39:50,470 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 265 transitions. Word has length 63 [2022-03-17 23:39:50,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:39:50,471 INFO L478 AbstractCegarLoop]: Abstraction has 172 states and 265 transitions. [2022-03-17 23:39:50,471 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) [2022-03-17 23:39:50,471 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 265 transitions. [2022-03-17 23:39:50,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-03-17 23:39:50,474 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:39:50,475 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:39:50,475 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-17 23:39:50,475 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:39:50,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:39:50,476 INFO L85 PathProgramCache]: Analyzing trace with hash 1017074035, now seen corresponding path program 1 times [2022-03-17 23:39:50,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:39:50,476 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325205507] [2022-03-17 23:39:50,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:39:50,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:39:50,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:39:50,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:39:50,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:39:50,618 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 23:39:50,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:39:50,618 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1325205507] [2022-03-17 23:39:50,618 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1325205507] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:39:50,619 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:39:50,619 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:39:50,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516477212] [2022-03-17 23:39:50,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:39:50,621 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:39:50,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:39:50,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:39:50,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:39:50,622 INFO L87 Difference]: Start difference. First operand 172 states and 265 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) [2022-03-17 23:39:53,972 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:39:55,999 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:39:56,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:39:56,333 INFO L93 Difference]: Finished difference Result 334 states and 513 transitions. [2022-03-17 23:39:56,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:39:56,334 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 [2022-03-17 23:39:56,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:39:56,335 INFO L225 Difference]: With dead ends: 334 [2022-03-17 23:39:56,335 INFO L226 Difference]: Without dead ends: 188 [2022-03-17 23:39:56,336 INFO L911 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 [2022-03-17 23:39:56,336 INFO L912 BasicCegarLoop]: 194 mSDtfsCounter, 28 mSDsluCounter, 309 mSDsCounter, 0 mSdLazyCounter, 367 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 503 SdHoareTripleChecker+Invalid, 377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 367 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-03-17 23:39:56,337 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 503 Invalid, 377 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 367 Invalid, 1 Unknown, 0 Unchecked, 5.7s Time] [2022-03-17 23:39:56,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2022-03-17 23:39:56,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 172. [2022-03-17 23:39:56,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 167 states have (on average 1.5568862275449102) internal successors, (260), 167 states have internal predecessors, (260), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:39:56,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 264 transitions. [2022-03-17 23:39:56,346 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 264 transitions. Word has length 64 [2022-03-17 23:39:56,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:39:56,346 INFO L478 AbstractCegarLoop]: Abstraction has 172 states and 264 transitions. [2022-03-17 23:39:56,346 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) [2022-03-17 23:39:56,347 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 264 transitions. [2022-03-17 23:39:56,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-03-17 23:39:56,347 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:39:56,347 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:39:56,347 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-17 23:39:56,348 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:39:56,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:39:56,348 INFO L85 PathProgramCache]: Analyzing trace with hash -337372781, now seen corresponding path program 1 times [2022-03-17 23:39:56,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:39:56,348 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789356586] [2022-03-17 23:39:56,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:39:56,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:39:56,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:39:56,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:39:56,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:39:56,495 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 23:39:56,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:39:56,496 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789356586] [2022-03-17 23:39:56,496 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [789356586] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:39:56,496 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:39:56,496 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:39:56,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126841493] [2022-03-17 23:39:56,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:39:56,497 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:39:56,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:39:56,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:39:56,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:39:56,497 INFO L87 Difference]: Start difference. First operand 172 states and 264 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) [2022-03-17 23:39:58,213 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:40:00,240 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:40:02,265 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 [] [2022-03-17 23:40:03,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:40:03,288 INFO L93 Difference]: Finished difference Result 437 states and 678 transitions. [2022-03-17 23:40:03,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:40:03,289 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 [2022-03-17 23:40:03,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:40:03,290 INFO L225 Difference]: With dead ends: 437 [2022-03-17 23:40:03,290 INFO L226 Difference]: Without dead ends: 291 [2022-03-17 23:40:03,291 INFO L911 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 [2022-03-17 23:40:03,291 INFO L912 BasicCegarLoop]: 123 mSDtfsCounter, 151 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 481 mSolverCounterSat, 64 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 547 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 481 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2022-03-17 23:40:03,292 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [151 Valid, 360 Invalid, 547 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 481 Invalid, 2 Unknown, 0 Unchecked, 6.8s Time] [2022-03-17 23:40:03,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2022-03-17 23:40:03,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 184. [2022-03-17 23:40:03,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 179 states have (on average 1.541899441340782) internal successors, (276), 179 states have internal predecessors, (276), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:40:03,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 280 transitions. [2022-03-17 23:40:03,302 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 280 transitions. Word has length 64 [2022-03-17 23:40:03,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:40:03,302 INFO L478 AbstractCegarLoop]: Abstraction has 184 states and 280 transitions. [2022-03-17 23:40:03,302 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) [2022-03-17 23:40:03,302 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 280 transitions. [2022-03-17 23:40:03,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-03-17 23:40:03,303 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:40:03,303 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:40:03,303 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-17 23:40:03,303 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:40:03,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:40:03,304 INFO L85 PathProgramCache]: Analyzing trace with hash -1394534957, now seen corresponding path program 1 times [2022-03-17 23:40:03,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:40:03,304 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808244882] [2022-03-17 23:40:03,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:40:03,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:40:03,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:40:03,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:40:03,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:40:03,440 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 23:40:03,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:40:03,440 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [808244882] [2022-03-17 23:40:03,440 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [808244882] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:40:03,440 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:40:03,440 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:40:03,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369706388] [2022-03-17 23:40:03,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:40:03,441 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:40:03,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:40:03,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:40:03,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:40:03,442 INFO L87 Difference]: Start difference. First operand 184 states and 280 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) [2022-03-17 23:40:05,593 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:40:07,579 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 [] [2022-03-17 23:40:08,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:40:08,034 INFO L93 Difference]: Finished difference Result 449 states and 692 transitions. [2022-03-17 23:40:08,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:40:08,034 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 [2022-03-17 23:40:08,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:40:08,035 INFO L225 Difference]: With dead ends: 449 [2022-03-17 23:40:08,035 INFO L226 Difference]: Without dead ends: 291 [2022-03-17 23:40:08,036 INFO L911 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 [2022-03-17 23:40:08,037 INFO L912 BasicCegarLoop]: 123 mSDtfsCounter, 145 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 547 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-03-17 23:40:08,037 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [145 Valid, 360 Invalid, 547 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 483 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2022-03-17 23:40:08,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2022-03-17 23:40:08,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 189. [2022-03-17 23:40:08,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189 states, 184 states have (on average 1.5434782608695652) internal successors, (284), 184 states have internal predecessors, (284), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:40:08,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 288 transitions. [2022-03-17 23:40:08,043 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 288 transitions. Word has length 64 [2022-03-17 23:40:08,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:40:08,043 INFO L478 AbstractCegarLoop]: Abstraction has 189 states and 288 transitions. [2022-03-17 23:40:08,043 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) [2022-03-17 23:40:08,043 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 288 transitions. [2022-03-17 23:40:08,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-03-17 23:40:08,044 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:40:08,044 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:40:08,044 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-17 23:40:08,044 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:40:08,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:40:08,045 INFO L85 PathProgramCache]: Analyzing trace with hash 1591170291, now seen corresponding path program 1 times [2022-03-17 23:40:08,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:40:08,045 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422954503] [2022-03-17 23:40:08,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:40:08,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:40:08,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:40:08,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:40:08,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:40:08,130 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 23:40:08,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:40:08,130 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422954503] [2022-03-17 23:40:08,131 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [422954503] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:40:08,131 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:40:08,131 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:40:08,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018193982] [2022-03-17 23:40:08,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:40:08,131 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:40:08,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:40:08,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:40:08,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:40:08,132 INFO L87 Difference]: Start difference. First operand 189 states and 288 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) [2022-03-17 23:40:10,629 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 [] [2022-03-17 23:40:12,654 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:40:14,679 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:40:15,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:40:15,122 INFO L93 Difference]: Finished difference Result 453 states and 698 transitions. [2022-03-17 23:40:15,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:40:15,122 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 [2022-03-17 23:40:15,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:40:15,124 INFO L225 Difference]: With dead ends: 453 [2022-03-17 23:40:15,124 INFO L226 Difference]: Without dead ends: 290 [2022-03-17 23:40:15,124 INFO L911 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 [2022-03-17 23:40:15,126 INFO L912 BasicCegarLoop]: 124 mSDtfsCounter, 143 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 478 mSolverCounterSat, 63 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 362 SdHoareTripleChecker+Invalid, 544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 478 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2022-03-17 23:40:15,126 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [143 Valid, 362 Invalid, 544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 478 Invalid, 3 Unknown, 0 Unchecked, 7.0s Time] [2022-03-17 23:40:15,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2022-03-17 23:40:15,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 190. [2022-03-17 23:40:15,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 185 states have (on average 1.5351351351351352) internal successors, (284), 185 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) [2022-03-17 23:40:15,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 288 transitions. [2022-03-17 23:40:15,140 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 288 transitions. Word has length 64 [2022-03-17 23:40:15,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:40:15,140 INFO L478 AbstractCegarLoop]: Abstraction has 190 states and 288 transitions. [2022-03-17 23:40:15,140 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) [2022-03-17 23:40:15,140 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 288 transitions. [2022-03-17 23:40:15,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-03-17 23:40:15,142 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:40:15,142 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:40:15,142 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-17 23:40:15,142 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:40:15,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:40:15,143 INFO L85 PathProgramCache]: Analyzing trace with hash -2016513651, now seen corresponding path program 1 times [2022-03-17 23:40:15,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:40:15,143 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982751298] [2022-03-17 23:40:15,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:40:15,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:40:15,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:40:15,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:40:15,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:40:15,265 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 23:40:15,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:40:15,266 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982751298] [2022-03-17 23:40:15,266 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [982751298] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:40:15,266 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:40:15,266 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:40:15,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395832988] [2022-03-17 23:40:15,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:40:15,267 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:40:15,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:40:15,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:40:15,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:40:15,267 INFO L87 Difference]: Start difference. First operand 190 states and 288 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:40:17,475 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:40:18,516 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:40:20,531 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 [] [2022-03-17 23:40:20,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:40:20,961 INFO L93 Difference]: Finished difference Result 454 states and 697 transitions. [2022-03-17 23:40:20,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:40:20,961 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 [2022-03-17 23:40:20,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:40:20,962 INFO L225 Difference]: With dead ends: 454 [2022-03-17 23:40:20,963 INFO L226 Difference]: Without dead ends: 290 [2022-03-17 23:40:20,963 INFO L911 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 [2022-03-17 23:40:20,963 INFO L912 BasicCegarLoop]: 124 mSDtfsCounter, 147 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 480 mSolverCounterSat, 63 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 362 SdHoareTripleChecker+Invalid, 544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 480 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-03-17 23:40:20,964 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [147 Valid, 362 Invalid, 544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 480 Invalid, 1 Unknown, 0 Unchecked, 5.7s Time] [2022-03-17 23:40:20,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2022-03-17 23:40:20,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 190. [2022-03-17 23:40:20,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 185 states have (on average 1.518918918918919) internal successors, (281), 185 states have internal predecessors, (281), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:40:20,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 285 transitions. [2022-03-17 23:40:20,968 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 285 transitions. Word has length 65 [2022-03-17 23:40:20,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:40:20,968 INFO L478 AbstractCegarLoop]: Abstraction has 190 states and 285 transitions. [2022-03-17 23:40:20,969 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) [2022-03-17 23:40:20,969 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 285 transitions. [2022-03-17 23:40:20,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-03-17 23:40:20,969 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:40:20,969 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:40:20,969 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-03-17 23:40:20,969 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:40:20,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:40:20,970 INFO L85 PathProgramCache]: Analyzing trace with hash 1058517463, now seen corresponding path program 1 times [2022-03-17 23:40:20,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:40:20,970 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [946879039] [2022-03-17 23:40:20,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:40:20,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:40:21,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:40:21,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:40:21,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:40:21,052 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 23:40:21,052 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:40:21,052 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [946879039] [2022-03-17 23:40:21,052 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [946879039] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:40:21,052 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:40:21,052 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:40:21,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130880781] [2022-03-17 23:40:21,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:40:21,052 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:40:21,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:40:21,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:40:21,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:40:21,053 INFO L87 Difference]: Start difference. First operand 190 states and 285 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:40:22,713 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 [] [2022-03-17 23:40:24,739 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:40:26,763 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:40:28,144 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:40:28,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:40:28,461 INFO L93 Difference]: Finished difference Result 367 states and 555 transitions. [2022-03-17 23:40:28,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:40:28,461 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 [2022-03-17 23:40:28,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:40:28,462 INFO L225 Difference]: With dead ends: 367 [2022-03-17 23:40:28,462 INFO L226 Difference]: Without dead ends: 203 [2022-03-17 23:40:28,462 INFO L911 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 [2022-03-17 23:40:28,463 INFO L912 BasicCegarLoop]: 197 mSDtfsCounter, 20 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 360 mSolverCounterSat, 8 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 509 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 360 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2022-03-17 23:40:28,463 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 509 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 360 Invalid, 2 Unknown, 0 Unchecked, 7.4s Time] [2022-03-17 23:40:28,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2022-03-17 23:40:28,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 190. [2022-03-17 23:40:28,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 185 states have (on average 1.5135135135135136) internal successors, (280), 185 states have internal predecessors, (280), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:40:28,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 284 transitions. [2022-03-17 23:40:28,467 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 284 transitions. Word has length 66 [2022-03-17 23:40:28,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:40:28,467 INFO L478 AbstractCegarLoop]: Abstraction has 190 states and 284 transitions. [2022-03-17 23:40:28,468 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) [2022-03-17 23:40:28,468 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 284 transitions. [2022-03-17 23:40:28,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-03-17 23:40:28,468 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:40:28,468 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:40:28,468 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-03-17 23:40:28,468 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:40:28,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:40:28,469 INFO L85 PathProgramCache]: Analyzing trace with hash -781914736, now seen corresponding path program 1 times [2022-03-17 23:40:28,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:40:28,469 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702436406] [2022-03-17 23:40:28,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:40:28,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:40:28,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:40:28,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:40:28,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:40:28,575 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 23:40:28,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:40:28,575 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1702436406] [2022-03-17 23:40:28,575 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1702436406] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:40:28,575 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:40:28,575 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:40:28,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964344265] [2022-03-17 23:40:28,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:40:28,576 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:40:28,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:40:28,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:40:28,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:40:28,577 INFO L87 Difference]: Start difference. First operand 190 states and 284 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) [2022-03-17 23:40:30,904 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 [] [2022-03-17 23:40:32,930 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:40:34,595 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:40:34,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:40:34,897 INFO L93 Difference]: Finished difference Result 357 states and 541 transitions. [2022-03-17 23:40:34,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:40:34,898 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 [2022-03-17 23:40:34,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:40:34,899 INFO L225 Difference]: With dead ends: 357 [2022-03-17 23:40:34,899 INFO L226 Difference]: Without dead ends: 193 [2022-03-17 23:40:34,899 INFO L911 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 [2022-03-17 23:40:34,900 INFO L912 BasicCegarLoop]: 204 mSDtfsCounter, 11 mSDsluCounter, 319 mSDsCounter, 0 mSdLazyCounter, 346 mSolverCounterSat, 4 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 523 SdHoareTripleChecker+Invalid, 352 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 346 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-03-17 23:40:34,900 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 523 Invalid, 352 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 346 Invalid, 2 Unknown, 0 Unchecked, 6.3s Time] [2022-03-17 23:40:34,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2022-03-17 23:40:34,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 190. [2022-03-17 23:40:34,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 185 states have (on average 1.508108108108108) internal successors, (279), 185 states have internal predecessors, (279), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:40:34,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 283 transitions. [2022-03-17 23:40:34,904 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 283 transitions. Word has length 67 [2022-03-17 23:40:34,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:40:34,904 INFO L478 AbstractCegarLoop]: Abstraction has 190 states and 283 transitions. [2022-03-17 23:40:34,904 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) [2022-03-17 23:40:34,904 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 283 transitions. [2022-03-17 23:40:34,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-03-17 23:40:34,905 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:40:34,905 INFO L500 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] [2022-03-17 23:40:34,905 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-03-17 23:40:34,905 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:40:34,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:40:34,905 INFO L85 PathProgramCache]: Analyzing trace with hash -1124365249, now seen corresponding path program 1 times [2022-03-17 23:40:34,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:40:34,905 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139051487] [2022-03-17 23:40:34,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:40:34,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:40:34,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:40:35,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:40:35,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:40:35,015 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 23:40:35,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:40:35,015 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139051487] [2022-03-17 23:40:35,015 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1139051487] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:40:35,015 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:40:35,015 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:40:35,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625258929] [2022-03-17 23:40:35,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:40:35,016 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:40:35,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:40:35,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:40:35,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:40:35,016 INFO L87 Difference]: Start difference. First operand 190 states and 283 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) [2022-03-17 23:40:37,024 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 [] [2022-03-17 23:40:37,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:40:37,479 INFO L93 Difference]: Finished difference Result 473 states and 717 transitions. [2022-03-17 23:40:37,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:40:37,479 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 [2022-03-17 23:40:37,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:40:37,480 INFO L225 Difference]: With dead ends: 473 [2022-03-17 23:40:37,480 INFO L226 Difference]: Without dead ends: 309 [2022-03-17 23:40:37,481 INFO L911 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 [2022-03-17 23:40:37,481 INFO L912 BasicCegarLoop]: 125 mSDtfsCounter, 121 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 481 mSolverCounterSat, 60 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 364 SdHoareTripleChecker+Invalid, 542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 481 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-17 23:40:37,481 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [121 Valid, 364 Invalid, 542 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 481 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-17 23:40:37,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2022-03-17 23:40:37,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 230. [2022-03-17 23:40:37,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 225 states have (on average 1.5422222222222222) internal successors, (347), 225 states have internal predecessors, (347), 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) [2022-03-17 23:40:37,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 351 transitions. [2022-03-17 23:40:37,486 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 351 transitions. Word has length 67 [2022-03-17 23:40:37,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:40:37,486 INFO L478 AbstractCegarLoop]: Abstraction has 230 states and 351 transitions. [2022-03-17 23:40:37,486 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) [2022-03-17 23:40:37,486 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 351 transitions. [2022-03-17 23:40:37,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-03-17 23:40:37,488 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:40:37,488 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:40:37,489 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-03-17 23:40:37,489 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:40:37,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:40:37,489 INFO L85 PathProgramCache]: Analyzing trace with hash 416669672, now seen corresponding path program 1 times [2022-03-17 23:40:37,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:40:37,489 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966429557] [2022-03-17 23:40:37,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:40:37,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:40:37,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:40:37,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:40:37,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:40:37,608 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 23:40:37,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:40:37,609 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [966429557] [2022-03-17 23:40:37,609 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [966429557] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:40:37,609 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:40:37,609 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:40:37,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368443869] [2022-03-17 23:40:37,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:40:37,609 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:40:37,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:40:37,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:40:37,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:40:37,610 INFO L87 Difference]: Start difference. First operand 230 states and 351 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:40:38,642 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 [] [2022-03-17 23:40:40,250 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:40:42,013 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:40:42,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:40:42,348 INFO L93 Difference]: Finished difference Result 474 states and 730 transitions. [2022-03-17 23:40:42,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:40:42,348 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 68 [2022-03-17 23:40:42,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:40:42,350 INFO L225 Difference]: With dead ends: 474 [2022-03-17 23:40:42,350 INFO L226 Difference]: Without dead ends: 270 [2022-03-17 23:40:42,350 INFO L911 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 [2022-03-17 23:40:42,351 INFO L912 BasicCegarLoop]: 203 mSDtfsCounter, 29 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 398 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 527 SdHoareTripleChecker+Invalid, 408 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 398 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-03-17 23:40:42,351 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [29 Valid, 527 Invalid, 408 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 398 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2022-03-17 23:40:42,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2022-03-17 23:40:42,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 252. [2022-03-17 23:40:42,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 252 states, 247 states have (on average 1.5384615384615385) internal successors, (380), 247 states have internal predecessors, (380), 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) [2022-03-17 23:40:42,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 384 transitions. [2022-03-17 23:40:42,357 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 384 transitions. Word has length 68 [2022-03-17 23:40:42,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:40:42,357 INFO L478 AbstractCegarLoop]: Abstraction has 252 states and 384 transitions. [2022-03-17 23:40:42,357 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:40:42,357 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 384 transitions. [2022-03-17 23:40:42,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-03-17 23:40:42,358 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:40:42,358 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:40:42,358 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-03-17 23:40:42,358 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:40:42,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:40:42,358 INFO L85 PathProgramCache]: Analyzing trace with hash -1133208978, now seen corresponding path program 1 times [2022-03-17 23:40:42,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:40:42,358 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114374169] [2022-03-17 23:40:42,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:40:42,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:40:42,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:40:42,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:40:42,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:40:42,461 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-17 23:40:42,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:40:42,461 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [114374169] [2022-03-17 23:40:42,461 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [114374169] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:40:42,461 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:40:42,461 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:40:42,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139127581] [2022-03-17 23:40:42,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:40:42,462 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:40:42,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:40:42,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:40:42,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:40:42,462 INFO L87 Difference]: Start difference. First operand 252 states and 384 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:40:44,324 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:40:46,351 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:40:47,458 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:40:48,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:40:48,309 INFO L93 Difference]: Finished difference Result 491 states and 754 transitions. [2022-03-17 23:40:48,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:40:48,310 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 82 [2022-03-17 23:40:48,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:40:48,311 INFO L225 Difference]: With dead ends: 491 [2022-03-17 23:40:48,311 INFO L226 Difference]: Without dead ends: 265 [2022-03-17 23:40:48,312 INFO L911 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 [2022-03-17 23:40:48,312 INFO L912 BasicCegarLoop]: 234 mSDtfsCounter, 20 mSDsluCounter, 354 mSDsCounter, 0 mSdLazyCounter, 402 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 588 SdHoareTripleChecker+Invalid, 413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 402 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-03-17 23:40:48,312 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 588 Invalid, 413 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 402 Invalid, 1 Unknown, 0 Unchecked, 5.8s Time] [2022-03-17 23:40:48,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2022-03-17 23:40:48,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 252. [2022-03-17 23:40:48,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 252 states, 247 states have (on average 1.534412955465587) internal successors, (379), 247 states have internal predecessors, (379), 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) [2022-03-17 23:40:48,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 383 transitions. [2022-03-17 23:40:48,319 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 383 transitions. Word has length 82 [2022-03-17 23:40:48,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:40:48,320 INFO L478 AbstractCegarLoop]: Abstraction has 252 states and 383 transitions. [2022-03-17 23:40:48,320 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:40:48,320 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 383 transitions. [2022-03-17 23:40:48,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-03-17 23:40:48,321 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:40:48,321 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:40:48,321 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-03-17 23:40:48,321 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:40:48,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:40:48,321 INFO L85 PathProgramCache]: Analyzing trace with hash -1457894331, now seen corresponding path program 1 times [2022-03-17 23:40:48,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:40:48,322 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354294312] [2022-03-17 23:40:48,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:40:48,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:40:48,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:40:48,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:40:48,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:40:48,429 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-17 23:40:48,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:40:48,429 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [354294312] [2022-03-17 23:40:48,429 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [354294312] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:40:48,429 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:40:48,429 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-17 23:40:48,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247716952] [2022-03-17 23:40:48,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:40:48,430 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-17 23:40:48,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:40:48,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-17 23:40:48,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:40:48,430 INFO L87 Difference]: Start difference. First operand 252 states and 383 transitions. Second operand has 6 states, 6 states have (on average 13.0) internal successors, (78), 5 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:40:50,459 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 [] [2022-03-17 23:40:50,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:40:50,824 INFO L93 Difference]: Finished difference Result 487 states and 748 transitions. [2022-03-17 23:40:50,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-17 23:40:50,825 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 5 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 83 [2022-03-17 23:40:50,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:40:50,826 INFO L225 Difference]: With dead ends: 487 [2022-03-17 23:40:50,826 INFO L226 Difference]: Without dead ends: 261 [2022-03-17 23:40:50,826 INFO L911 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 [2022-03-17 23:40:50,827 INFO L912 BasicCegarLoop]: 209 mSDtfsCounter, 3 mSDsluCounter, 448 mSDsCounter, 0 mSdLazyCounter, 437 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 657 SdHoareTripleChecker+Invalid, 442 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 437 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-17 23:40:50,827 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 657 Invalid, 442 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 437 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-17 23:40:50,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2022-03-17 23:40:50,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 261. [2022-03-17 23:40:50,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 256 states have (on average 1.5234375) internal successors, (390), 256 states have internal predecessors, (390), 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) [2022-03-17 23:40:50,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 394 transitions. [2022-03-17 23:40:50,832 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 394 transitions. Word has length 83 [2022-03-17 23:40:50,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:40:50,832 INFO L478 AbstractCegarLoop]: Abstraction has 261 states and 394 transitions. [2022-03-17 23:40:50,832 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 5 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:40:50,832 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 394 transitions. [2022-03-17 23:40:50,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-03-17 23:40:50,832 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:40:50,833 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:40:50,833 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-03-17 23:40:50,833 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:40:50,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:40:50,833 INFO L85 PathProgramCache]: Analyzing trace with hash 400603689, now seen corresponding path program 1 times [2022-03-17 23:40:50,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:40:50,833 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539181126] [2022-03-17 23:40:50,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:40:50,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:40:50,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:40:50,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:40:50,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:40:50,934 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 23:40:50,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:40:50,935 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539181126] [2022-03-17 23:40:50,935 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1539181126] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:40:50,935 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:40:50,935 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:40:50,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4264005] [2022-03-17 23:40:50,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:40:50,935 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:40:50,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:40:50,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:40:50,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:40:50,936 INFO L87 Difference]: Start difference. First operand 261 states and 394 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) [2022-03-17 23:40:52,673 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:40:54,394 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:40:56,418 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 [] [2022-03-17 23:40:57,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:40:57,708 INFO L93 Difference]: Finished difference Result 605 states and 923 transitions. [2022-03-17 23:40:57,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:40:57,708 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 85 [2022-03-17 23:40:57,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:40:57,709 INFO L225 Difference]: With dead ends: 605 [2022-03-17 23:40:57,709 INFO L226 Difference]: Without dead ends: 370 [2022-03-17 23:40:57,710 INFO L911 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 [2022-03-17 23:40:57,710 INFO L912 BasicCegarLoop]: 125 mSDtfsCounter, 146 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 481 mSolverCounterSat, 63 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 364 SdHoareTripleChecker+Invalid, 545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 481 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2022-03-17 23:40:57,710 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [146 Valid, 364 Invalid, 545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 481 Invalid, 1 Unknown, 0 Unchecked, 6.7s Time] [2022-03-17 23:40:57,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2022-03-17 23:40:57,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 261. [2022-03-17 23:40:57,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 256 states have (on average 1.5078125) internal successors, (386), 256 states have internal predecessors, (386), 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) [2022-03-17 23:40:57,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 390 transitions. [2022-03-17 23:40:57,716 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 390 transitions. Word has length 85 [2022-03-17 23:40:57,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:40:57,716 INFO L478 AbstractCegarLoop]: Abstraction has 261 states and 390 transitions. [2022-03-17 23:40:57,716 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) [2022-03-17 23:40:57,716 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 390 transitions. [2022-03-17 23:40:57,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-03-17 23:40:57,716 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:40:57,717 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:40:57,717 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-03-17 23:40:57,717 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:40:57,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:40:57,717 INFO L85 PathProgramCache]: Analyzing trace with hash 266253142, now seen corresponding path program 1 times [2022-03-17 23:40:57,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:40:57,717 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244537389] [2022-03-17 23:40:57,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:40:57,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:40:57,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:40:57,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:40:57,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:40:57,831 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 23:40:57,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:40:57,854 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244537389] [2022-03-17 23:40:57,854 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1244537389] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:40:57,854 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:40:57,854 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:40:57,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842753671] [2022-03-17 23:40:57,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:40:57,855 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:40:57,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:40:57,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:40:57,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:40:57,855 INFO L87 Difference]: Start difference. First operand 261 states and 390 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) [2022-03-17 23:40:59,724 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 [] [2022-03-17 23:41:01,742 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:41:02,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:41:02,743 INFO L93 Difference]: Finished difference Result 513 states and 772 transitions. [2022-03-17 23:41:02,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:41:02,743 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 86 [2022-03-17 23:41:02,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:41:02,759 INFO L225 Difference]: With dead ends: 513 [2022-03-17 23:41:02,760 INFO L226 Difference]: Without dead ends: 278 [2022-03-17 23:41:02,760 INFO L911 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 [2022-03-17 23:41:02,761 INFO L912 BasicCegarLoop]: 205 mSDtfsCounter, 33 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 394 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 529 SdHoareTripleChecker+Invalid, 405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 394 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-03-17 23:41:02,761 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 529 Invalid, 405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 394 Invalid, 1 Unknown, 0 Unchecked, 4.9s Time] [2022-03-17 23:41:02,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2022-03-17 23:41:02,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 261. [2022-03-17 23:41:02,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 256 states have (on average 1.50390625) internal successors, (385), 256 states have internal predecessors, (385), 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) [2022-03-17 23:41:02,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 389 transitions. [2022-03-17 23:41:02,765 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 389 transitions. Word has length 86 [2022-03-17 23:41:02,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:41:02,766 INFO L478 AbstractCegarLoop]: Abstraction has 261 states and 389 transitions. [2022-03-17 23:41:02,766 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) [2022-03-17 23:41:02,766 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 389 transitions. [2022-03-17 23:41:02,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-03-17 23:41:02,778 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:41:02,778 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:41:02,778 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-03-17 23:41:02,778 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:41:02,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:41:02,779 INFO L85 PathProgramCache]: Analyzing trace with hash 681592199, now seen corresponding path program 1 times [2022-03-17 23:41:02,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:41:02,779 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260818984] [2022-03-17 23:41:02,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:41:02,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:41:02,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:41:02,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:41:02,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:41:02,898 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-17 23:41:02,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:41:02,898 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260818984] [2022-03-17 23:41:02,899 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1260818984] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:41:02,899 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:41:02,899 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:41:02,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797145774] [2022-03-17 23:41:02,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:41:02,900 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:41:02,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:41:02,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:41:02,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:41:02,901 INFO L87 Difference]: Start difference. First operand 261 states and 389 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:41:05,640 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 [] [2022-03-17 23:41:07,663 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:41:08,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:41:08,782 INFO L93 Difference]: Finished difference Result 605 states and 913 transitions. [2022-03-17 23:41:08,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:41:08,782 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 90 [2022-03-17 23:41:08,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:41:08,783 INFO L225 Difference]: With dead ends: 605 [2022-03-17 23:41:08,783 INFO L226 Difference]: Without dead ends: 370 [2022-03-17 23:41:08,784 INFO L911 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 [2022-03-17 23:41:08,784 INFO L912 BasicCegarLoop]: 136 mSDtfsCounter, 119 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 491 mSolverCounterSat, 60 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 386 SdHoareTripleChecker+Invalid, 553 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 491 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-03-17 23:41:08,784 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 386 Invalid, 553 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 491 Invalid, 2 Unknown, 0 Unchecked, 5.9s Time] [2022-03-17 23:41:08,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2022-03-17 23:41:08,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 283. [2022-03-17 23:41:08,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 278 states have (on average 1.539568345323741) internal successors, (428), 278 states have internal predecessors, (428), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:41:08,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 432 transitions. [2022-03-17 23:41:08,790 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 432 transitions. Word has length 90 [2022-03-17 23:41:08,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:41:08,790 INFO L478 AbstractCegarLoop]: Abstraction has 283 states and 432 transitions. [2022-03-17 23:41:08,790 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:41:08,790 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 432 transitions. [2022-03-17 23:41:08,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-03-17 23:41:08,791 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:41:08,791 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:41:08,791 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-03-17 23:41:08,791 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:41:08,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:41:08,791 INFO L85 PathProgramCache]: Analyzing trace with hash -1821101810, now seen corresponding path program 1 times [2022-03-17 23:41:08,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:41:08,791 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395639740] [2022-03-17 23:41:08,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:41:08,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:41:08,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:41:08,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:41:08,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:41:08,906 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-17 23:41:08,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:41:08,906 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1395639740] [2022-03-17 23:41:08,906 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1395639740] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:41:08,906 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:41:08,906 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:41:08,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982095898] [2022-03-17 23:41:08,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:41:08,906 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:41:08,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:41:08,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:41:08,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:41:08,907 INFO L87 Difference]: Start difference. First operand 283 states and 432 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) [2022-03-17 23:41:10,796 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 [] [2022-03-17 23:41:13,021 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 [] [2022-03-17 23:41:13,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:41:13,455 INFO L93 Difference]: Finished difference Result 644 states and 988 transitions. [2022-03-17 23:41:13,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:41:13,455 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 118 [2022-03-17 23:41:13,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:41:13,457 INFO L225 Difference]: With dead ends: 644 [2022-03-17 23:41:13,457 INFO L226 Difference]: Without dead ends: 387 [2022-03-17 23:41:13,457 INFO L911 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 [2022-03-17 23:41:13,457 INFO L912 BasicCegarLoop]: 201 mSDtfsCounter, 88 mSDsluCounter, 322 mSDsCounter, 0 mSdLazyCounter, 530 mSolverCounterSat, 12 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 523 SdHoareTripleChecker+Invalid, 543 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 530 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-03-17 23:41:13,458 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [88 Valid, 523 Invalid, 543 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 530 Invalid, 1 Unknown, 0 Unchecked, 4.5s Time] [2022-03-17 23:41:13,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 387 states. [2022-03-17 23:41:13,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 387 to 317. [2022-03-17 23:41:13,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 317 states, 312 states have (on average 1.544871794871795) internal successors, (482), 312 states have internal predecessors, (482), 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) [2022-03-17 23:41:13,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 486 transitions. [2022-03-17 23:41:13,463 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 486 transitions. Word has length 118 [2022-03-17 23:41:13,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:41:13,463 INFO L478 AbstractCegarLoop]: Abstraction has 317 states and 486 transitions. [2022-03-17 23:41:13,463 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) [2022-03-17 23:41:13,463 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 486 transitions. [2022-03-17 23:41:13,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-03-17 23:41:13,464 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:41:13,464 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:41:13,464 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-03-17 23:41:13,464 INFO L403 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:41:13,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:41:13,465 INFO L85 PathProgramCache]: Analyzing trace with hash -866872915, now seen corresponding path program 1 times [2022-03-17 23:41:13,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:41:13,465 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484181050] [2022-03-17 23:41:13,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:41:13,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:41:13,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:41:13,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:41:13,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:41:13,555 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-03-17 23:41:13,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:41:13,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484181050] [2022-03-17 23:41:13,556 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [484181050] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:41:13,556 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:41:13,556 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:41:13,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318146233] [2022-03-17 23:41:13,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:41:13,557 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:41:13,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:41:13,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:41:13,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:41:13,557 INFO L87 Difference]: Start difference. First operand 317 states and 486 transitions. Second operand has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:41:15,571 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:41:15,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:41:15,950 INFO L93 Difference]: Finished difference Result 663 states and 1019 transitions. [2022-03-17 23:41:15,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:41:15,951 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 118 [2022-03-17 23:41:15,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:41:15,952 INFO L225 Difference]: With dead ends: 663 [2022-03-17 23:41:15,952 INFO L226 Difference]: Without dead ends: 372 [2022-03-17 23:41:15,952 INFO L911 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 [2022-03-17 23:41:15,953 INFO L912 BasicCegarLoop]: 249 mSDtfsCounter, 34 mSDsluCounter, 368 mSDsCounter, 0 mSdLazyCounter, 461 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 617 SdHoareTripleChecker+Invalid, 472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 461 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-17 23:41:15,954 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 617 Invalid, 472 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 461 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-17 23:41:15,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2022-03-17 23:41:15,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 341. [2022-03-17 23:41:15,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 341 states, 336 states have (on average 1.5416666666666667) internal successors, (518), 336 states have internal predecessors, (518), 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) [2022-03-17 23:41:15,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 522 transitions. [2022-03-17 23:41:15,966 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 522 transitions. Word has length 118 [2022-03-17 23:41:15,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:41:15,966 INFO L478 AbstractCegarLoop]: Abstraction has 341 states and 522 transitions. [2022-03-17 23:41:15,967 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:41:15,967 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 522 transitions. [2022-03-17 23:41:15,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-03-17 23:41:15,967 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:41:15,968 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:41:15,968 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-03-17 23:41:15,968 INFO L403 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:41:15,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:41:15,968 INFO L85 PathProgramCache]: Analyzing trace with hash 590170977, now seen corresponding path program 1 times [2022-03-17 23:41:15,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:41:15,968 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795747760] [2022-03-17 23:41:15,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:41:15,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:41:16,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:41:16,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:41:16,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:41:16,072 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2022-03-17 23:41:16,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:41:16,072 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795747760] [2022-03-17 23:41:16,072 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1795747760] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:41:16,072 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:41:16,072 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:41:16,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979718333] [2022-03-17 23:41:16,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:41:16,073 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:41:16,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:41:16,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:41:16,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:41:16,074 INFO L87 Difference]: Start difference. First operand 341 states and 522 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) [2022-03-17 23:41:17,170 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:41:19,936 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:41:21,967 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 [] [2022-03-17 23:41:22,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:41:22,458 INFO L93 Difference]: Finished difference Result 733 states and 1123 transitions. [2022-03-17 23:41:22,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:41:22,458 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 123 [2022-03-17 23:41:22,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:41:22,460 INFO L225 Difference]: With dead ends: 733 [2022-03-17 23:41:22,460 INFO L226 Difference]: Without dead ends: 418 [2022-03-17 23:41:22,460 INFO L911 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 [2022-03-17 23:41:22,461 INFO L912 BasicCegarLoop]: 125 mSDtfsCounter, 147 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 62 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 364 SdHoareTripleChecker+Invalid, 541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2022-03-17 23:41:22,461 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [147 Valid, 364 Invalid, 541 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 477 Invalid, 2 Unknown, 0 Unchecked, 6.4s Time] [2022-03-17 23:41:22,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2022-03-17 23:41:22,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 341. [2022-03-17 23:41:22,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 341 states, 336 states have (on average 1.5238095238095237) internal successors, (512), 336 states have internal predecessors, (512), 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) [2022-03-17 23:41:22,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 516 transitions. [2022-03-17 23:41:22,468 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 516 transitions. Word has length 123 [2022-03-17 23:41:22,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:41:22,468 INFO L478 AbstractCegarLoop]: Abstraction has 341 states and 516 transitions. [2022-03-17 23:41:22,468 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) [2022-03-17 23:41:22,468 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 516 transitions. [2022-03-17 23:41:22,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-03-17 23:41:22,469 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:41:22,469 INFO L500 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] [2022-03-17 23:41:22,469 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-03-17 23:41:22,469 INFO L403 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:41:22,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:41:22,470 INFO L85 PathProgramCache]: Analyzing trace with hash 52353177, now seen corresponding path program 1 times [2022-03-17 23:41:22,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:41:22,470 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909896929] [2022-03-17 23:41:22,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:41:22,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:41:22,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:41:22,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:41:22,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:41:22,580 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-17 23:41:22,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:41:22,580 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909896929] [2022-03-17 23:41:22,580 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1909896929] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:41:22,580 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:41:22,580 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:41:22,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773632827] [2022-03-17 23:41:22,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:41:22,581 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:41:22,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:41:22,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:41:22,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:41:22,582 INFO L87 Difference]: Start difference. First operand 341 states and 516 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) [2022-03-17 23:41:24,595 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 [] [2022-03-17 23:41:25,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:41:25,072 INFO L93 Difference]: Finished difference Result 773 states and 1177 transitions. [2022-03-17 23:41:25,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:41:25,073 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 [2022-03-17 23:41:25,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:41:25,074 INFO L225 Difference]: With dead ends: 773 [2022-03-17 23:41:25,074 INFO L226 Difference]: Without dead ends: 458 [2022-03-17 23:41:25,075 INFO L911 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 [2022-03-17 23:41:25,076 INFO L912 BasicCegarLoop]: 125 mSDtfsCounter, 120 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 476 mSolverCounterSat, 59 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 364 SdHoareTripleChecker+Invalid, 536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 476 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-17 23:41:25,076 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [120 Valid, 364 Invalid, 536 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 476 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-17 23:41:25,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 458 states. [2022-03-17 23:41:25,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 458 to 378. [2022-03-17 23:41:25,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 378 states, 373 states have (on average 1.5335120643431635) internal successors, (572), 373 states have internal predecessors, (572), 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) [2022-03-17 23:41:25,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 378 states and 576 transitions. [2022-03-17 23:41:25,086 INFO L78 Accepts]: Start accepts. Automaton has 378 states and 576 transitions. Word has length 123 [2022-03-17 23:41:25,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:41:25,086 INFO L478 AbstractCegarLoop]: Abstraction has 378 states and 576 transitions. [2022-03-17 23:41:25,086 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) [2022-03-17 23:41:25,086 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 576 transitions. [2022-03-17 23:41:25,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-03-17 23:41:25,087 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:41:25,087 INFO L500 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] [2022-03-17 23:41:25,087 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-03-17 23:41:25,087 INFO L403 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:41:25,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:41:25,088 INFO L85 PathProgramCache]: Analyzing trace with hash -857753857, now seen corresponding path program 1 times [2022-03-17 23:41:25,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:41:25,088 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211648869] [2022-03-17 23:41:25,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:41:25,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:41:25,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:41:25,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:41:25,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:41:25,174 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-17 23:41:25,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:41:25,174 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1211648869] [2022-03-17 23:41:25,174 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1211648869] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:41:25,174 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:41:25,174 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:41:25,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641210525] [2022-03-17 23:41:25,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:41:25,175 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:41:25,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:41:25,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:41:25,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:41:25,176 INFO L87 Difference]: Start difference. First operand 378 states and 576 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) [2022-03-17 23:41:27,834 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:41:29,861 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:41:30,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:41:30,282 INFO L93 Difference]: Finished difference Result 788 states and 1206 transitions. [2022-03-17 23:41:30,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:41:30,283 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 [2022-03-17 23:41:30,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:41:30,285 INFO L225 Difference]: With dead ends: 788 [2022-03-17 23:41:30,285 INFO L226 Difference]: Without dead ends: 436 [2022-03-17 23:41:30,285 INFO L911 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 [2022-03-17 23:41:30,286 INFO L912 BasicCegarLoop]: 187 mSDtfsCounter, 78 mSDsluCounter, 308 mSDsCounter, 0 mSdLazyCounter, 508 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 495 SdHoareTripleChecker+Invalid, 520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 508 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-03-17 23:41:30,286 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [78 Valid, 495 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 508 Invalid, 1 Unknown, 0 Unchecked, 5.1s Time] [2022-03-17 23:41:30,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 436 states. [2022-03-17 23:41:30,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 436 to 384. [2022-03-17 23:41:30,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 384 states, 379 states have (on average 1.5356200527704484) internal successors, (582), 379 states have internal predecessors, (582), 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) [2022-03-17 23:41:30,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 586 transitions. [2022-03-17 23:41:30,294 INFO L78 Accepts]: Start accepts. Automaton has 384 states and 586 transitions. Word has length 124 [2022-03-17 23:41:30,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:41:30,294 INFO L478 AbstractCegarLoop]: Abstraction has 384 states and 586 transitions. [2022-03-17 23:41:30,294 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) [2022-03-17 23:41:30,294 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states and 586 transitions. [2022-03-17 23:41:30,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-03-17 23:41:30,295 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:41:30,295 INFO L500 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] [2022-03-17 23:41:30,295 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-03-17 23:41:30,296 INFO L403 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:41:30,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:41:30,296 INFO L85 PathProgramCache]: Analyzing trace with hash -1073496446, now seen corresponding path program 1 times [2022-03-17 23:41:30,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:41:30,296 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512539779] [2022-03-17 23:41:30,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:41:30,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:41:30,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:41:30,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:41:30,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:41:30,452 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-17 23:41:30,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:41:30,452 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1512539779] [2022-03-17 23:41:30,452 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1512539779] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:41:30,452 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:41:30,452 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:41:30,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283279214] [2022-03-17 23:41:30,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:41:30,453 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:41:30,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:41:30,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:41:30,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:41:30,453 INFO L87 Difference]: Start difference. First operand 384 states and 586 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) [2022-03-17 23:41:31,695 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:41:33,715 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:41:34,717 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:41:36,732 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:41:37,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:41:37,159 INFO L93 Difference]: Finished difference Result 859 states and 1316 transitions. [2022-03-17 23:41:37,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:41:37,161 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 [2022-03-17 23:41:37,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:41:37,163 INFO L225 Difference]: With dead ends: 859 [2022-03-17 23:41:37,163 INFO L226 Difference]: Without dead ends: 501 [2022-03-17 23:41:37,164 INFO L911 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 [2022-03-17 23:41:37,164 INFO L912 BasicCegarLoop]: 125 mSDtfsCounter, 113 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 478 mSolverCounterSat, 60 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 365 SdHoareTripleChecker+Invalid, 540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 478 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2022-03-17 23:41:37,164 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [113 Valid, 365 Invalid, 540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 478 Invalid, 2 Unknown, 0 Unchecked, 6.7s Time] [2022-03-17 23:41:37,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 501 states. [2022-03-17 23:41:37,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 501 to 427. [2022-03-17 23:41:37,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 427 states, 422 states have (on average 1.5450236966824644) internal successors, (652), 422 states have internal predecessors, (652), 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) [2022-03-17 23:41:37,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 656 transitions. [2022-03-17 23:41:37,183 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 656 transitions. Word has length 132 [2022-03-17 23:41:37,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:41:37,183 INFO L478 AbstractCegarLoop]: Abstraction has 427 states and 656 transitions. [2022-03-17 23:41:37,184 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) [2022-03-17 23:41:37,184 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 656 transitions. [2022-03-17 23:41:37,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-03-17 23:41:37,191 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:41:37,191 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:41:37,191 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-03-17 23:41:37,192 INFO L403 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:41:37,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:41:37,192 INFO L85 PathProgramCache]: Analyzing trace with hash 1999056286, now seen corresponding path program 1 times [2022-03-17 23:41:37,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:41:37,192 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025819303] [2022-03-17 23:41:37,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:41:37,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:41:37,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:41:37,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:41:37,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:41:37,283 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-17 23:41:37,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:41:37,283 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1025819303] [2022-03-17 23:41:37,283 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1025819303] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:41:37,283 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:41:37,283 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:41:37,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234701571] [2022-03-17 23:41:37,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:41:37,283 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:41:37,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:41:37,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:41:37,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:41:37,284 INFO L87 Difference]: Start difference. First operand 427 states and 656 transitions. Second operand has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:41:39,482 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:41:41,504 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:41:42,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:41:42,774 INFO L93 Difference]: Finished difference Result 871 states and 1340 transitions. [2022-03-17 23:41:42,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:41:42,774 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 133 [2022-03-17 23:41:42,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:41:42,776 INFO L225 Difference]: With dead ends: 871 [2022-03-17 23:41:42,776 INFO L226 Difference]: Without dead ends: 470 [2022-03-17 23:41:42,776 INFO L911 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 [2022-03-17 23:41:42,777 INFO L912 BasicCegarLoop]: 190 mSDtfsCounter, 60 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 502 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 501 SdHoareTripleChecker+Invalid, 514 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 502 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-03-17 23:41:42,777 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [60 Valid, 501 Invalid, 514 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 502 Invalid, 1 Unknown, 0 Unchecked, 5.5s Time] [2022-03-17 23:41:42,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 470 states. [2022-03-17 23:41:42,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 470 to 430. [2022-03-17 23:41:42,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 430 states, 425 states have (on average 1.5411764705882354) internal successors, (655), 425 states have internal predecessors, (655), 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) [2022-03-17 23:41:42,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 430 states to 430 states and 659 transitions. [2022-03-17 23:41:42,799 INFO L78 Accepts]: Start accepts. Automaton has 430 states and 659 transitions. Word has length 133 [2022-03-17 23:41:42,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:41:42,799 INFO L478 AbstractCegarLoop]: Abstraction has 430 states and 659 transitions. [2022-03-17 23:41:42,800 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:41:42,800 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states and 659 transitions. [2022-03-17 23:41:42,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2022-03-17 23:41:42,801 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:41:42,801 INFO L500 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, 1] [2022-03-17 23:41:42,801 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-03-17 23:41:42,801 INFO L403 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:41:42,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:41:42,801 INFO L85 PathProgramCache]: Analyzing trace with hash -472495684, now seen corresponding path program 1 times [2022-03-17 23:41:42,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:41:42,801 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711682126] [2022-03-17 23:41:42,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:41:42,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:41:42,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:41:42,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:41:42,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:41:42,893 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 93 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-17 23:41:42,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:41:42,894 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711682126] [2022-03-17 23:41:42,894 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1711682126] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:41:42,894 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:41:42,894 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:41:42,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586067181] [2022-03-17 23:41:42,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:41:42,894 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:41:42,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:41:42,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:41:42,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:41:42,895 INFO L87 Difference]: Start difference. First operand 430 states and 659 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) [2022-03-17 23:41:45,123 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:41:46,482 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:41:47,705 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 [] [2022-03-17 23:41:48,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:41:48,085 INFO L93 Difference]: Finished difference Result 864 states and 1329 transitions. [2022-03-17 23:41:48,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:41:48,086 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 136 [2022-03-17 23:41:48,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:41:48,087 INFO L225 Difference]: With dead ends: 864 [2022-03-17 23:41:48,087 INFO L226 Difference]: Without dead ends: 460 [2022-03-17 23:41:48,088 INFO L911 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 [2022-03-17 23:41:48,088 INFO L912 BasicCegarLoop]: 198 mSDtfsCounter, 78 mSDsluCounter, 317 mSDsCounter, 0 mSdLazyCounter, 488 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 515 SdHoareTripleChecker+Invalid, 495 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 488 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-03-17 23:41:48,088 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [78 Valid, 515 Invalid, 495 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 488 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2022-03-17 23:41:48,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 460 states. [2022-03-17 23:41:48,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 460 to 430. [2022-03-17 23:41:48,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 430 states, 425 states have (on average 1.5388235294117647) internal successors, (654), 425 states have internal predecessors, (654), 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) [2022-03-17 23:41:48,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 430 states to 430 states and 658 transitions. [2022-03-17 23:41:48,094 INFO L78 Accepts]: Start accepts. Automaton has 430 states and 658 transitions. Word has length 136 [2022-03-17 23:41:48,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:41:48,095 INFO L478 AbstractCegarLoop]: Abstraction has 430 states and 658 transitions. [2022-03-17 23:41:48,095 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) [2022-03-17 23:41:48,095 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states and 658 transitions. [2022-03-17 23:41:48,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2022-03-17 23:41:48,096 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:41:48,096 INFO L500 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, 1] [2022-03-17 23:41:48,096 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-03-17 23:41:48,097 INFO L403 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:41:48,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:41:48,097 INFO L85 PathProgramCache]: Analyzing trace with hash 1177641115, now seen corresponding path program 1 times [2022-03-17 23:41:48,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:41:48,097 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824467789] [2022-03-17 23:41:48,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:41:48,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:41:48,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:41:48,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:41:48,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:41:48,191 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 93 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-17 23:41:48,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:41:48,191 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1824467789] [2022-03-17 23:41:48,191 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1824467789] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:41:48,191 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:41:48,191 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:41:48,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830041147] [2022-03-17 23:41:48,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:41:48,192 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:41:48,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:41:48,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:41:48,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:41:48,192 INFO L87 Difference]: Start difference. First operand 430 states and 658 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) [2022-03-17 23:41:52,569 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 [] [2022-03-17 23:41:53,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:41:53,004 INFO L93 Difference]: Finished difference Result 901 states and 1382 transitions. [2022-03-17 23:41:53,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:41:53,005 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 136 [2022-03-17 23:41:53,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:41:53,007 INFO L225 Difference]: With dead ends: 901 [2022-03-17 23:41:53,007 INFO L226 Difference]: Without dead ends: 497 [2022-03-17 23:41:53,008 INFO L911 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 [2022-03-17 23:41:53,008 INFO L912 BasicCegarLoop]: 147 mSDtfsCounter, 135 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 479 mSolverCounterSat, 52 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 479 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-03-17 23:41:53,008 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [135 Valid, 408 Invalid, 532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 479 Invalid, 1 Unknown, 0 Unchecked, 4.8s Time] [2022-03-17 23:41:53,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 497 states. [2022-03-17 23:41:53,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 497 to 430. [2022-03-17 23:41:53,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 430 states, 425 states have (on average 1.5247058823529411) internal successors, (648), 425 states have internal predecessors, (648), 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) [2022-03-17 23:41:53,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 430 states to 430 states and 652 transitions. [2022-03-17 23:41:53,014 INFO L78 Accepts]: Start accepts. Automaton has 430 states and 652 transitions. Word has length 136 [2022-03-17 23:41:53,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:41:53,014 INFO L478 AbstractCegarLoop]: Abstraction has 430 states and 652 transitions. [2022-03-17 23:41:53,014 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) [2022-03-17 23:41:53,014 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states and 652 transitions. [2022-03-17 23:41:53,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2022-03-17 23:41:53,015 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:41:53,015 INFO L500 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, 1] [2022-03-17 23:41:53,015 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-03-17 23:41:53,016 INFO L403 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:41:53,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:41:53,016 INFO L85 PathProgramCache]: Analyzing trace with hash 641664460, now seen corresponding path program 1 times [2022-03-17 23:41:53,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:41:53,016 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346167300] [2022-03-17 23:41:53,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:41:53,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:41:53,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:41:53,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:41:53,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:41:53,105 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 122 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-17 23:41:53,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:41:53,105 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [346167300] [2022-03-17 23:41:53,105 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [346167300] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:41:53,105 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:41:53,105 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:41:53,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572855636] [2022-03-17 23:41:53,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:41:53,106 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:41:53,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:41:53,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:41:53,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:41:53,107 INFO L87 Difference]: Start difference. First operand 430 states and 652 transitions. Second operand has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:41:54,659 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:41:56,684 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:41:58,706 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 [] [2022-03-17 23:41:59,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:41:59,503 INFO L93 Difference]: Finished difference Result 901 states and 1370 transitions. [2022-03-17 23:41:59,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:41:59,504 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 140 [2022-03-17 23:41:59,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:41:59,505 INFO L225 Difference]: With dead ends: 901 [2022-03-17 23:41:59,505 INFO L226 Difference]: Without dead ends: 497 [2022-03-17 23:41:59,506 INFO L911 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 [2022-03-17 23:41:59,506 INFO L912 BasicCegarLoop]: 152 mSDtfsCounter, 125 mSDsluCounter, 266 mSDsCounter, 0 mSdLazyCounter, 485 mSolverCounterSat, 49 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 418 SdHoareTripleChecker+Invalid, 536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 485 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2022-03-17 23:41:59,506 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [125 Valid, 418 Invalid, 536 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 485 Invalid, 2 Unknown, 0 Unchecked, 6.4s Time] [2022-03-17 23:41:59,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 497 states. [2022-03-17 23:41:59,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 497 to 430. [2022-03-17 23:41:59,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 430 states, 425 states have (on average 1.5129411764705882) internal successors, (643), 425 states have internal predecessors, (643), 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) [2022-03-17 23:41:59,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 430 states to 430 states and 647 transitions. [2022-03-17 23:41:59,514 INFO L78 Accepts]: Start accepts. Automaton has 430 states and 647 transitions. Word has length 140 [2022-03-17 23:41:59,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:41:59,514 INFO L478 AbstractCegarLoop]: Abstraction has 430 states and 647 transitions. [2022-03-17 23:41:59,514 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:41:59,514 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states and 647 transitions. [2022-03-17 23:41:59,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2022-03-17 23:41:59,515 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:41:59,515 INFO L500 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, 1] [2022-03-17 23:41:59,515 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-03-17 23:41:59,515 INFO L403 AbstractCegarLoop]: === Iteration 27 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:41:59,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:41:59,515 INFO L85 PathProgramCache]: Analyzing trace with hash 627414315, now seen corresponding path program 1 times [2022-03-17 23:41:59,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:41:59,515 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611862236] [2022-03-17 23:41:59,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:41:59,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:41:59,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:41:59,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:41:59,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:41:59,662 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 115 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-03-17 23:41:59,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:41:59,662 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611862236] [2022-03-17 23:41:59,662 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1611862236] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:41:59,662 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:41:59,662 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:41:59,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071278774] [2022-03-17 23:41:59,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:41:59,662 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:41:59,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:41:59,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:41:59,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:41:59,663 INFO L87 Difference]: Start difference. First operand 430 states and 647 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) [2022-03-17 23:42:01,386 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:42:03,410 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:42:05,863 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:42:06,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:42:06,246 INFO L93 Difference]: Finished difference Result 873 states and 1320 transitions. [2022-03-17 23:42:06,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:42:06,246 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 140 [2022-03-17 23:42:06,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:42:06,247 INFO L225 Difference]: With dead ends: 873 [2022-03-17 23:42:06,248 INFO L226 Difference]: Without dead ends: 469 [2022-03-17 23:42:06,248 INFO L911 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 [2022-03-17 23:42:06,248 INFO L912 BasicCegarLoop]: 242 mSDtfsCounter, 27 mSDsluCounter, 361 mSDsCounter, 0 mSdLazyCounter, 445 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 603 SdHoareTripleChecker+Invalid, 451 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 445 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2022-03-17 23:42:06,249 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [27 Valid, 603 Invalid, 451 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 445 Invalid, 1 Unknown, 0 Unchecked, 6.6s Time] [2022-03-17 23:42:06,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469 states. [2022-03-17 23:42:06,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 469 to 456. [2022-03-17 23:42:06,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 456 states, 451 states have (on average 1.507760532150776) internal successors, (680), 451 states have internal predecessors, (680), 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) [2022-03-17 23:42:06,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 456 states to 456 states and 684 transitions. [2022-03-17 23:42:06,255 INFO L78 Accepts]: Start accepts. Automaton has 456 states and 684 transitions. Word has length 140 [2022-03-17 23:42:06,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:42:06,255 INFO L478 AbstractCegarLoop]: Abstraction has 456 states and 684 transitions. [2022-03-17 23:42:06,255 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) [2022-03-17 23:42:06,255 INFO L276 IsEmpty]: Start isEmpty. Operand 456 states and 684 transitions. [2022-03-17 23:42:06,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-03-17 23:42:06,256 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:42:06,256 INFO L500 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] [2022-03-17 23:42:06,256 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-03-17 23:42:06,256 INFO L403 AbstractCegarLoop]: === Iteration 28 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:42:06,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:42:06,257 INFO L85 PathProgramCache]: Analyzing trace with hash -1558463381, now seen corresponding path program 1 times [2022-03-17 23:42:06,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:42:06,257 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956597794] [2022-03-17 23:42:06,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:42:06,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:42:06,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:42:06,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:42:06,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:42:06,373 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 130 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-17 23:42:06,373 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:42:06,373 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [956597794] [2022-03-17 23:42:06,373 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [956597794] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:42:06,373 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:42:06,373 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:42:06,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763457508] [2022-03-17 23:42:06,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:42:06,374 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:42:06,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:42:06,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:42:06,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:42:06,374 INFO L87 Difference]: Start difference. First operand 456 states and 684 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) [2022-03-17 23:42:08,304 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.93s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:42:10,331 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:42:12,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:42:12,215 INFO L93 Difference]: Finished difference Result 916 states and 1379 transitions. [2022-03-17 23:42:12,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:42:12,215 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 143 [2022-03-17 23:42:12,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:42:12,216 INFO L225 Difference]: With dead ends: 916 [2022-03-17 23:42:12,216 INFO L226 Difference]: Without dead ends: 486 [2022-03-17 23:42:12,217 INFO L911 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 [2022-03-17 23:42:12,217 INFO L912 BasicCegarLoop]: 203 mSDtfsCounter, 63 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 492 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 527 SdHoareTripleChecker+Invalid, 500 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 492 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-03-17 23:42:12,217 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [63 Valid, 527 Invalid, 500 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 492 Invalid, 1 Unknown, 0 Unchecked, 5.8s Time] [2022-03-17 23:42:12,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 486 states. [2022-03-17 23:42:12,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 486 to 456. [2022-03-17 23:42:12,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 456 states, 451 states have (on average 1.5055432372505544) internal successors, (679), 451 states have internal predecessors, (679), 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) [2022-03-17 23:42:12,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 456 states to 456 states and 683 transitions. [2022-03-17 23:42:12,224 INFO L78 Accepts]: Start accepts. Automaton has 456 states and 683 transitions. Word has length 143 [2022-03-17 23:42:12,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:42:12,224 INFO L478 AbstractCegarLoop]: Abstraction has 456 states and 683 transitions. [2022-03-17 23:42:12,224 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) [2022-03-17 23:42:12,224 INFO L276 IsEmpty]: Start isEmpty. Operand 456 states and 683 transitions. [2022-03-17 23:42:12,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-03-17 23:42:12,225 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:42:12,225 INFO L500 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] [2022-03-17 23:42:12,225 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-03-17 23:42:12,225 INFO L403 AbstractCegarLoop]: === Iteration 29 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:42:12,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:42:12,225 INFO L85 PathProgramCache]: Analyzing trace with hash 2140626264, now seen corresponding path program 1 times [2022-03-17 23:42:12,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:42:12,226 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078270672] [2022-03-17 23:42:12,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:42:12,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:42:12,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:42:12,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:42:12,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:42:12,314 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-17 23:42:12,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:42:12,314 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078270672] [2022-03-17 23:42:12,314 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1078270672] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:42:12,314 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:42:12,314 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:42:12,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121872126] [2022-03-17 23:42:12,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:42:12,314 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:42:12,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:42:12,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:42:12,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:42:12,315 INFO L87 Difference]: Start difference. First operand 456 states and 683 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) [2022-03-17 23:42:14,322 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 [] [2022-03-17 23:42:14,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:42:14,733 INFO L93 Difference]: Finished difference Result 953 states and 1432 transitions. [2022-03-17 23:42:14,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:42:14,733 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 [2022-03-17 23:42:14,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:42:14,735 INFO L225 Difference]: With dead ends: 953 [2022-03-17 23:42:14,735 INFO L226 Difference]: Without dead ends: 523 [2022-03-17 23:42:14,736 INFO L911 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 [2022-03-17 23:42:14,736 INFO L912 BasicCegarLoop]: 147 mSDtfsCounter, 120 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 476 mSolverCounterSat, 52 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 476 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-17 23:42:14,738 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [120 Valid, 408 Invalid, 529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 476 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-17 23:42:14,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 523 states. [2022-03-17 23:42:14,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 523 to 456. [2022-03-17 23:42:14,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 456 states, 451 states have (on average 1.4944567627494456) internal successors, (674), 451 states have internal predecessors, (674), 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) [2022-03-17 23:42:14,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 456 states to 456 states and 678 transitions. [2022-03-17 23:42:14,744 INFO L78 Accepts]: Start accepts. Automaton has 456 states and 678 transitions. Word has length 144 [2022-03-17 23:42:14,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:42:14,744 INFO L478 AbstractCegarLoop]: Abstraction has 456 states and 678 transitions. [2022-03-17 23:42:14,744 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) [2022-03-17 23:42:14,744 INFO L276 IsEmpty]: Start isEmpty. Operand 456 states and 678 transitions. [2022-03-17 23:42:14,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-03-17 23:42:14,745 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:42:14,745 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:42:14,745 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-03-17 23:42:14,745 INFO L403 AbstractCegarLoop]: === Iteration 30 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:42:14,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:42:14,746 INFO L85 PathProgramCache]: Analyzing trace with hash -1964442410, now seen corresponding path program 1 times [2022-03-17 23:42:14,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:42:14,746 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798429399] [2022-03-17 23:42:14,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:42:14,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:42:14,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:42:14,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:42:14,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:42:14,861 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 134 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-17 23:42:14,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:42:14,861 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [798429399] [2022-03-17 23:42:14,861 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [798429399] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:42:14,861 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:42:14,862 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:42:14,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206120934] [2022-03-17 23:42:14,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:42:14,863 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:42:14,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:42:14,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:42:14,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:42:14,863 INFO L87 Difference]: Start difference. First operand 456 states and 678 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) [2022-03-17 23:42:15,912 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 [] [2022-03-17 23:42:17,929 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:42:19,796 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:42:20,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:42:20,161 INFO L93 Difference]: Finished difference Result 908 states and 1354 transitions. [2022-03-17 23:42:20,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:42:20,161 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 [2022-03-17 23:42:20,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:42:20,163 INFO L225 Difference]: With dead ends: 908 [2022-03-17 23:42:20,163 INFO L226 Difference]: Without dead ends: 478 [2022-03-17 23:42:20,164 INFO L911 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 [2022-03-17 23:42:20,164 INFO L912 BasicCegarLoop]: 212 mSDtfsCounter, 50 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 474 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 545 SdHoareTripleChecker+Invalid, 482 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 474 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-03-17 23:42:20,164 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [50 Valid, 545 Invalid, 482 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 474 Invalid, 1 Unknown, 0 Unchecked, 5.3s Time] [2022-03-17 23:42:20,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 478 states. [2022-03-17 23:42:20,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 478 to 456. [2022-03-17 23:42:20,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 456 states, 451 states have (on average 1.492239467849224) internal successors, (673), 451 states have internal predecessors, (673), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:42:20,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 456 states to 456 states and 677 transitions. [2022-03-17 23:42:20,170 INFO L78 Accepts]: Start accepts. Automaton has 456 states and 677 transitions. Word has length 145 [2022-03-17 23:42:20,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:42:20,170 INFO L478 AbstractCegarLoop]: Abstraction has 456 states and 677 transitions. [2022-03-17 23:42:20,170 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) [2022-03-17 23:42:20,170 INFO L276 IsEmpty]: Start isEmpty. Operand 456 states and 677 transitions. [2022-03-17 23:42:20,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-03-17 23:42:20,173 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:42:20,173 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:42:20,173 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-03-17 23:42:20,173 INFO L403 AbstractCegarLoop]: === Iteration 31 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:42:20,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:42:20,174 INFO L85 PathProgramCache]: Analyzing trace with hash -382845022, now seen corresponding path program 1 times [2022-03-17 23:42:20,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:42:20,174 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625008367] [2022-03-17 23:42:20,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:42:20,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:42:20,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:42:20,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:42:20,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:42:20,278 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 126 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-17 23:42:20,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:42:20,278 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625008367] [2022-03-17 23:42:20,278 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [625008367] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:42:20,278 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:42:20,278 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:42:20,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632301205] [2022-03-17 23:42:20,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:42:20,279 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:42:20,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:42:20,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:42:20,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:42:20,279 INFO L87 Difference]: Start difference. First operand 456 states and 677 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) [2022-03-17 23:42:22,159 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:42:24,186 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:42:26,210 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 [] [2022-03-17 23:42:27,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:42:27,031 INFO L93 Difference]: Finished difference Result 908 states and 1352 transitions. [2022-03-17 23:42:27,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:42:27,031 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 146 [2022-03-17 23:42:27,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:42:27,045 INFO L225 Difference]: With dead ends: 908 [2022-03-17 23:42:27,046 INFO L226 Difference]: Without dead ends: 478 [2022-03-17 23:42:27,046 INFO L911 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 [2022-03-17 23:42:27,051 INFO L912 BasicCegarLoop]: 212 mSDtfsCounter, 53 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 545 SdHoareTripleChecker+Invalid, 482 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2022-03-17 23:42:27,052 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [53 Valid, 545 Invalid, 482 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 473 Invalid, 2 Unknown, 0 Unchecked, 6.7s Time] [2022-03-17 23:42:27,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 478 states. [2022-03-17 23:42:27,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 478 to 456. [2022-03-17 23:42:27,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 456 states, 451 states have (on average 1.4900221729490022) internal successors, (672), 451 states have internal predecessors, (672), 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) [2022-03-17 23:42:27,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 456 states to 456 states and 676 transitions. [2022-03-17 23:42:27,063 INFO L78 Accepts]: Start accepts. Automaton has 456 states and 676 transitions. Word has length 146 [2022-03-17 23:42:27,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:42:27,063 INFO L478 AbstractCegarLoop]: Abstraction has 456 states and 676 transitions. [2022-03-17 23:42:27,063 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) [2022-03-17 23:42:27,063 INFO L276 IsEmpty]: Start isEmpty. Operand 456 states and 676 transitions. [2022-03-17 23:42:27,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-03-17 23:42:27,064 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:42:27,064 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:42:27,064 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-03-17 23:42:27,065 INFO L403 AbstractCegarLoop]: === Iteration 32 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:42:27,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:42:27,065 INFO L85 PathProgramCache]: Analyzing trace with hash 1579019717, now seen corresponding path program 1 times [2022-03-17 23:42:27,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:42:27,065 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696459895] [2022-03-17 23:42:27,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:42:27,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:42:27,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:42:27,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:42:27,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:42:27,185 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 136 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-17 23:42:27,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:42:27,185 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [696459895] [2022-03-17 23:42:27,185 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [696459895] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:42:27,185 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:42:27,185 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:42:27,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714664738] [2022-03-17 23:42:27,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:42:27,185 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:42:27,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:42:27,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:42:27,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:42:27,186 INFO L87 Difference]: Start difference. First operand 456 states and 676 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) [2022-03-17 23:42:29,907 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:42:31,932 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:42:33,293 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:42:33,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:42:33,692 INFO L93 Difference]: Finished difference Result 953 states and 1418 transitions. [2022-03-17 23:42:33,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:42:33,693 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 146 [2022-03-17 23:42:33,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:42:33,694 INFO L225 Difference]: With dead ends: 953 [2022-03-17 23:42:33,694 INFO L226 Difference]: Without dead ends: 523 [2022-03-17 23:42:33,696 INFO L911 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 [2022-03-17 23:42:33,697 INFO L912 BasicCegarLoop]: 147 mSDtfsCounter, 117 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 479 mSolverCounterSat, 52 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 479 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2022-03-17 23:42:33,697 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [117 Valid, 408 Invalid, 532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 479 Invalid, 1 Unknown, 0 Unchecked, 6.5s Time] [2022-03-17 23:42:33,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 523 states. [2022-03-17 23:42:33,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 523 to 456. [2022-03-17 23:42:33,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 456 states, 451 states have (on average 1.4789356984478936) internal successors, (667), 451 states have internal predecessors, (667), 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) [2022-03-17 23:42:33,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 456 states to 456 states and 671 transitions. [2022-03-17 23:42:33,707 INFO L78 Accepts]: Start accepts. Automaton has 456 states and 671 transitions. Word has length 146 [2022-03-17 23:42:33,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:42:33,708 INFO L478 AbstractCegarLoop]: Abstraction has 456 states and 671 transitions. [2022-03-17 23:42:33,708 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) [2022-03-17 23:42:33,708 INFO L276 IsEmpty]: Start isEmpty. Operand 456 states and 671 transitions. [2022-03-17 23:42:33,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-03-17 23:42:33,709 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:42:33,709 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:42:33,709 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-03-17 23:42:33,709 INFO L403 AbstractCegarLoop]: === Iteration 33 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:42:33,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:42:33,709 INFO L85 PathProgramCache]: Analyzing trace with hash -2021798891, now seen corresponding path program 1 times [2022-03-17 23:42:33,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:42:33,709 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954351645] [2022-03-17 23:42:33,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:42:33,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:42:33,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:42:33,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:42:33,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:42:33,802 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 128 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-17 23:42:33,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:42:33,802 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [954351645] [2022-03-17 23:42:33,802 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [954351645] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:42:33,802 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:42:33,802 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:42:33,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109051783] [2022-03-17 23:42:33,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:42:33,802 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:42:33,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:42:33,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:42:33,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:42:33,803 INFO L87 Difference]: Start difference. First operand 456 states and 671 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) [2022-03-17 23:42:35,001 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:42:36,602 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:42:38,625 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:42:39,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:42:39,947 INFO L93 Difference]: Finished difference Result 953 states and 1408 transitions. [2022-03-17 23:42:39,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:42:39,948 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 147 [2022-03-17 23:42:39,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:42:39,949 INFO L225 Difference]: With dead ends: 953 [2022-03-17 23:42:39,949 INFO L226 Difference]: Without dead ends: 523 [2022-03-17 23:42:39,950 INFO L911 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 [2022-03-17 23:42:39,950 INFO L912 BasicCegarLoop]: 147 mSDtfsCounter, 120 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 479 mSolverCounterSat, 52 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 479 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-03-17 23:42:39,950 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [120 Valid, 408 Invalid, 532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 479 Invalid, 1 Unknown, 0 Unchecked, 6.1s Time] [2022-03-17 23:42:39,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 523 states. [2022-03-17 23:42:39,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 523 to 456. [2022-03-17 23:42:39,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 456 states, 451 states have (on average 1.4678492239467849) internal successors, (662), 451 states have internal predecessors, (662), 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) [2022-03-17 23:42:39,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 456 states to 456 states and 666 transitions. [2022-03-17 23:42:39,957 INFO L78 Accepts]: Start accepts. Automaton has 456 states and 666 transitions. Word has length 147 [2022-03-17 23:42:39,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:42:39,957 INFO L478 AbstractCegarLoop]: Abstraction has 456 states and 666 transitions. [2022-03-17 23:42:39,957 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) [2022-03-17 23:42:39,957 INFO L276 IsEmpty]: Start isEmpty. Operand 456 states and 666 transitions. [2022-03-17 23:42:39,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-03-17 23:42:39,958 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:42:39,958 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:42:39,958 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-03-17 23:42:39,958 INFO L403 AbstractCegarLoop]: === Iteration 34 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:42:39,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:42:39,959 INFO L85 PathProgramCache]: Analyzing trace with hash -957033562, now seen corresponding path program 1 times [2022-03-17 23:42:39,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:42:39,959 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993613551] [2022-03-17 23:42:39,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:42:39,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:42:40,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:42:40,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:42:40,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:42:40,045 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 139 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-17 23:42:40,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:42:40,045 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993613551] [2022-03-17 23:42:40,045 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1993613551] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:42:40,045 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:42:40,045 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:42:40,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773134649] [2022-03-17 23:42:40,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:42:40,045 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:42:40,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:42:40,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:42:40,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:42:40,046 INFO L87 Difference]: Start difference. First operand 456 states and 666 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) [2022-03-17 23:42:42,059 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 [] [2022-03-17 23:42:42,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:42:42,431 INFO L93 Difference]: Finished difference Result 904 states and 1325 transitions. [2022-03-17 23:42:42,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:42:42,432 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 [2022-03-17 23:42:42,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:42:42,433 INFO L225 Difference]: With dead ends: 904 [2022-03-17 23:42:42,433 INFO L226 Difference]: Without dead ends: 474 [2022-03-17 23:42:42,434 INFO L911 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 [2022-03-17 23:42:42,434 INFO L912 BasicCegarLoop]: 216 mSDtfsCounter, 41 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 463 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 553 SdHoareTripleChecker+Invalid, 471 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 463 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-17 23:42:42,434 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [41 Valid, 553 Invalid, 471 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 463 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-17 23:42:42,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 474 states. [2022-03-17 23:42:42,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 474 to 456. [2022-03-17 23:42:42,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 456 states, 451 states have (on average 1.4656319290465631) internal successors, (661), 451 states have internal predecessors, (661), 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) [2022-03-17 23:42:42,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 456 states to 456 states and 665 transitions. [2022-03-17 23:42:42,440 INFO L78 Accepts]: Start accepts. Automaton has 456 states and 665 transitions. Word has length 149 [2022-03-17 23:42:42,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:42:42,440 INFO L478 AbstractCegarLoop]: Abstraction has 456 states and 665 transitions. [2022-03-17 23:42:42,440 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) [2022-03-17 23:42:42,440 INFO L276 IsEmpty]: Start isEmpty. Operand 456 states and 665 transitions. [2022-03-17 23:42:42,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2022-03-17 23:42:42,441 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:42:42,441 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:42:42,441 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-03-17 23:42:42,441 INFO L403 AbstractCegarLoop]: === Iteration 35 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:42:42,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:42:42,442 INFO L85 PathProgramCache]: Analyzing trace with hash -556446200, now seen corresponding path program 1 times [2022-03-17 23:42:42,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:42:42,442 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363635113] [2022-03-17 23:42:42,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:42:42,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:42:42,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:42:42,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:42:42,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:42:42,548 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 140 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-17 23:42:42,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:42:42,548 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363635113] [2022-03-17 23:42:42,548 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [363635113] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:42:42,548 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:42:42,548 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:42:42,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981831510] [2022-03-17 23:42:42,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:42:42,549 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:42:42,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:42:42,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:42:42,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:42:42,549 INFO L87 Difference]: Start difference. First operand 456 states and 665 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) [2022-03-17 23:42:44,082 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:42:45,184 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:42:47,079 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:42:49,104 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:42:49,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:42:49,514 INFO L93 Difference]: Finished difference Result 953 states and 1396 transitions. [2022-03-17 23:42:49,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:42:49,514 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 150 [2022-03-17 23:42:49,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:42:49,516 INFO L225 Difference]: With dead ends: 953 [2022-03-17 23:42:49,516 INFO L226 Difference]: Without dead ends: 523 [2022-03-17 23:42:49,516 INFO L911 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 [2022-03-17 23:42:49,517 INFO L912 BasicCegarLoop]: 147 mSDtfsCounter, 112 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 479 mSolverCounterSat, 52 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 479 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2022-03-17 23:42:49,517 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [112 Valid, 408 Invalid, 532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 479 Invalid, 1 Unknown, 0 Unchecked, 6.9s Time] [2022-03-17 23:42:49,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 523 states. [2022-03-17 23:42:49,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 523 to 456. [2022-03-17 23:42:49,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 456 states, 451 states have (on average 1.4545454545454546) internal successors, (656), 451 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) [2022-03-17 23:42:49,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 456 states to 456 states and 660 transitions. [2022-03-17 23:42:49,523 INFO L78 Accepts]: Start accepts. Automaton has 456 states and 660 transitions. Word has length 150 [2022-03-17 23:42:49,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:42:49,523 INFO L478 AbstractCegarLoop]: Abstraction has 456 states and 660 transitions. [2022-03-17 23:42:49,523 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) [2022-03-17 23:42:49,523 INFO L276 IsEmpty]: Start isEmpty. Operand 456 states and 660 transitions. [2022-03-17 23:42:49,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2022-03-17 23:42:49,524 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:42:49,524 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:42:49,524 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-03-17 23:42:49,524 INFO L403 AbstractCegarLoop]: === Iteration 36 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:42:49,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:42:49,524 INFO L85 PathProgramCache]: Analyzing trace with hash 1985507473, now seen corresponding path program 1 times [2022-03-17 23:42:49,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:42:49,525 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560990576] [2022-03-17 23:42:49,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:42:49,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:42:49,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:42:49,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:42:49,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:42:49,611 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 141 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-17 23:42:49,611 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:42:49,611 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560990576] [2022-03-17 23:42:49,611 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1560990576] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:42:49,612 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:42:49,612 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:42:49,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660608949] [2022-03-17 23:42:49,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:42:49,612 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:42:49,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:42:49,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:42:49,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:42:49,612 INFO L87 Difference]: Start difference. First operand 456 states and 660 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) [2022-03-17 23:42:51,237 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:42:53,266 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:42:55,292 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:42:57,318 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:42:57,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:42:57,697 INFO L93 Difference]: Finished difference Result 900 states and 1308 transitions. [2022-03-17 23:42:57,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:42:57,697 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 150 [2022-03-17 23:42:57,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:42:57,698 INFO L225 Difference]: With dead ends: 900 [2022-03-17 23:42:57,699 INFO L226 Difference]: Without dead ends: 470 [2022-03-17 23:42:57,699 INFO L911 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 [2022-03-17 23:42:57,699 INFO L912 BasicCegarLoop]: 218 mSDtfsCounter, 34 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 460 mSolverCounterSat, 7 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 557 SdHoareTripleChecker+Invalid, 470 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 460 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2022-03-17 23:42:57,699 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 557 Invalid, 470 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 460 Invalid, 3 Unknown, 0 Unchecked, 8.1s Time] [2022-03-17 23:42:57,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 470 states. [2022-03-17 23:42:57,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 470 to 456. [2022-03-17 23:42:57,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 456 states, 451 states have (on average 1.4523281596452329) internal successors, (655), 451 states have internal predecessors, (655), 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) [2022-03-17 23:42:57,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 456 states to 456 states and 659 transitions. [2022-03-17 23:42:57,705 INFO L78 Accepts]: Start accepts. Automaton has 456 states and 659 transitions. Word has length 150 [2022-03-17 23:42:57,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:42:57,705 INFO L478 AbstractCegarLoop]: Abstraction has 456 states and 659 transitions. [2022-03-17 23:42:57,705 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) [2022-03-17 23:42:57,705 INFO L276 IsEmpty]: Start isEmpty. Operand 456 states and 659 transitions. [2022-03-17 23:42:57,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2022-03-17 23:42:57,706 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:42:57,706 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:42:57,706 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-03-17 23:42:57,707 INFO L403 AbstractCegarLoop]: === Iteration 37 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:42:57,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:42:57,707 INFO L85 PathProgramCache]: Analyzing trace with hash -1559310290, now seen corresponding path program 1 times [2022-03-17 23:42:57,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:42:57,707 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2127512268] [2022-03-17 23:42:57,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:42:57,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:42:57,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:42:57,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:42:57,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:42:57,794 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 142 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-17 23:42:57,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:42:57,794 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2127512268] [2022-03-17 23:42:57,794 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2127512268] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:42:57,794 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:42:57,794 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:42:57,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856048779] [2022-03-17 23:42:57,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:42:57,795 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:42:57,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:42:57,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:42:57,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:42:57,795 INFO L87 Difference]: Start difference. First operand 456 states and 659 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) [2022-03-17 23:42:59,449 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:43:00,689 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:43:02,207 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:43:03,809 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:43:04,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:43:04,232 INFO L93 Difference]: Finished difference Result 953 states and 1384 transitions. [2022-03-17 23:43:04,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:43:04,233 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 151 [2022-03-17 23:43:04,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:43:04,234 INFO L225 Difference]: With dead ends: 953 [2022-03-17 23:43:04,234 INFO L226 Difference]: Without dead ends: 523 [2022-03-17 23:43:04,235 INFO L911 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 [2022-03-17 23:43:04,235 INFO L912 BasicCegarLoop]: 148 mSDtfsCounter, 109 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 481 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 410 SdHoareTripleChecker+Invalid, 533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 481 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2022-03-17 23:43:04,235 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [109 Valid, 410 Invalid, 533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 481 Invalid, 0 Unknown, 0 Unchecked, 6.4s Time] [2022-03-17 23:43:04,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 523 states. [2022-03-17 23:43:04,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 523 to 456. [2022-03-17 23:43:04,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 456 states, 451 states have (on average 1.441241685144124) internal successors, (650), 451 states have internal predecessors, (650), 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) [2022-03-17 23:43:04,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 456 states to 456 states and 654 transitions. [2022-03-17 23:43:04,241 INFO L78 Accepts]: Start accepts. Automaton has 456 states and 654 transitions. Word has length 151 [2022-03-17 23:43:04,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:43:04,241 INFO L478 AbstractCegarLoop]: Abstraction has 456 states and 654 transitions. [2022-03-17 23:43:04,241 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) [2022-03-17 23:43:04,241 INFO L276 IsEmpty]: Start isEmpty. Operand 456 states and 654 transitions. [2022-03-17 23:43:04,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2022-03-17 23:43:04,242 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:43:04,242 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:43:04,242 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-03-17 23:43:04,243 INFO L403 AbstractCegarLoop]: === Iteration 38 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:43:04,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:43:04,243 INFO L85 PathProgramCache]: Analyzing trace with hash 1608723459, now seen corresponding path program 1 times [2022-03-17 23:43:04,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:43:04,243 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995562704] [2022-03-17 23:43:04,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:43:04,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:43:04,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:43:04,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:43:04,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:43:04,361 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 144 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-03-17 23:43:04,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:43:04,361 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [995562704] [2022-03-17 23:43:04,362 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [995562704] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:43:04,362 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:43:04,362 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:43:04,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227422420] [2022-03-17 23:43:04,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:43:04,363 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:43:04,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:43:04,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:43:04,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:43:04,364 INFO L87 Difference]: Start difference. First operand 456 states and 654 transitions. Second operand has 5 states, 5 states have (on average 25.8) internal successors, (129), 4 states have internal predecessors, (129), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:43:05,438 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:43:07,460 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:43:10,201 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:43:10,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:43:10,615 INFO L93 Difference]: Finished difference Result 1032 states and 1491 transitions. [2022-03-17 23:43:10,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:43:10,616 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.8) internal successors, (129), 4 states have internal predecessors, (129), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 159 [2022-03-17 23:43:10,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:43:10,617 INFO L225 Difference]: With dead ends: 1032 [2022-03-17 23:43:10,617 INFO L226 Difference]: Without dead ends: 602 [2022-03-17 23:43:10,618 INFO L911 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 [2022-03-17 23:43:10,618 INFO L912 BasicCegarLoop]: 141 mSDtfsCounter, 110 mSDsluCounter, 255 mSDsCounter, 0 mSdLazyCounter, 463 mSolverCounterSat, 44 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 396 SdHoareTripleChecker+Invalid, 508 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 463 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-03-17 23:43:10,618 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 396 Invalid, 508 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 463 Invalid, 1 Unknown, 0 Unchecked, 6.2s Time] [2022-03-17 23:43:10,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 602 states. [2022-03-17 23:43:10,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 602 to 520. [2022-03-17 23:43:10,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 520 states, 515 states have (on average 1.4368932038834952) internal successors, (740), 515 states have internal predecessors, (740), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:43:10,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 520 states to 520 states and 744 transitions. [2022-03-17 23:43:10,625 INFO L78 Accepts]: Start accepts. Automaton has 520 states and 744 transitions. Word has length 159 [2022-03-17 23:43:10,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:43:10,625 INFO L478 AbstractCegarLoop]: Abstraction has 520 states and 744 transitions. [2022-03-17 23:43:10,625 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.8) internal successors, (129), 4 states have internal predecessors, (129), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:43:10,625 INFO L276 IsEmpty]: Start isEmpty. Operand 520 states and 744 transitions. [2022-03-17 23:43:10,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-03-17 23:43:10,626 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:43:10,626 INFO L500 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] [2022-03-17 23:43:10,626 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-03-17 23:43:10,626 INFO L403 AbstractCegarLoop]: === Iteration 39 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:43:10,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:43:10,626 INFO L85 PathProgramCache]: Analyzing trace with hash -2063473100, now seen corresponding path program 1 times [2022-03-17 23:43:10,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:43:10,626 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286641751] [2022-03-17 23:43:10,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:43:10,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:43:10,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:43:10,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:43:10,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:43:10,722 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 156 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-03-17 23:43:10,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:43:10,722 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286641751] [2022-03-17 23:43:10,722 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1286641751] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:43:10,722 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:43:10,722 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:43:10,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136887744] [2022-03-17 23:43:10,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:43:10,722 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:43:10,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:43:10,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:43:10,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:43:10,723 INFO L87 Difference]: Start difference. First operand 520 states and 744 transitions. Second operand has 5 states, 5 states have (on average 27.0) internal successors, (135), 4 states have internal predecessors, (135), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:43:13,239 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:43:15,644 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:43:16,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:43:16,077 INFO L93 Difference]: Finished difference Result 1081 states and 1554 transitions. [2022-03-17 23:43:16,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:43:16,078 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.0) internal successors, (135), 4 states have internal predecessors, (135), 1 states have call successors, (3), 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 [2022-03-17 23:43:16,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:43:16,079 INFO L225 Difference]: With dead ends: 1081 [2022-03-17 23:43:16,079 INFO L226 Difference]: Without dead ends: 587 [2022-03-17 23:43:16,080 INFO L911 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 [2022-03-17 23:43:16,080 INFO L912 BasicCegarLoop]: 135 mSDtfsCounter, 105 mSDsluCounter, 249 mSDsCounter, 0 mSdLazyCounter, 467 mSolverCounterSat, 56 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 467 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-03-17 23:43:16,080 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [105 Valid, 384 Invalid, 524 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 467 Invalid, 1 Unknown, 0 Unchecked, 5.3s Time] [2022-03-17 23:43:16,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 587 states. [2022-03-17 23:43:16,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 587 to 520. [2022-03-17 23:43:16,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 520 states, 515 states have (on average 1.4310679611650485) internal successors, (737), 515 states have internal predecessors, (737), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:43:16,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 520 states to 520 states and 741 transitions. [2022-03-17 23:43:16,087 INFO L78 Accepts]: Start accepts. Automaton has 520 states and 741 transitions. Word has length 165 [2022-03-17 23:43:16,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:43:16,087 INFO L478 AbstractCegarLoop]: Abstraction has 520 states and 741 transitions. [2022-03-17 23:43:16,088 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.0) internal successors, (135), 4 states have internal predecessors, (135), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:43:16,088 INFO L276 IsEmpty]: Start isEmpty. Operand 520 states and 741 transitions. [2022-03-17 23:43:16,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-03-17 23:43:16,088 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:43:16,089 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:43:16,089 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-03-17 23:43:16,089 INFO L403 AbstractCegarLoop]: === Iteration 40 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:43:16,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:43:16,089 INFO L85 PathProgramCache]: Analyzing trace with hash 2024925367, now seen corresponding path program 1 times [2022-03-17 23:43:16,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:43:16,089 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982355978] [2022-03-17 23:43:16,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:43:16,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:43:16,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:43:16,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:43:16,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:43:16,184 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2022-03-17 23:43:16,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:43:16,184 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982355978] [2022-03-17 23:43:16,184 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [982355978] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:43:16,184 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:43:16,184 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 23:43:16,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958162129] [2022-03-17 23:43:16,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:43:16,184 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 23:43:16,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:43:16,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 23:43:16,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 23:43:16,185 INFO L87 Difference]: Start difference. First operand 520 states and 741 transitions. Second operand has 4 states, 4 states have (on average 27.0) internal successors, (108), 3 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:43:17,226 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:43:19,243 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:43:21,270 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:43:21,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:43:21,687 INFO L93 Difference]: Finished difference Result 1500 states and 2153 transitions. [2022-03-17 23:43:21,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 23:43:21,687 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 3 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 173 [2022-03-17 23:43:21,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:43:21,689 INFO L225 Difference]: With dead ends: 1500 [2022-03-17 23:43:21,689 INFO L226 Difference]: Without dead ends: 1006 [2022-03-17 23:43:21,690 INFO L911 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 [2022-03-17 23:43:21,690 INFO L912 BasicCegarLoop]: 382 mSDtfsCounter, 143 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 431 mSolverCounterSat, 12 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 576 SdHoareTripleChecker+Invalid, 445 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 431 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-03-17 23:43:21,690 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [143 Valid, 576 Invalid, 445 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 431 Invalid, 2 Unknown, 0 Unchecked, 5.5s Time] [2022-03-17 23:43:21,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1006 states. [2022-03-17 23:43:21,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1006 to 1006. [2022-03-17 23:43:21,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1006 states, 1001 states have (on average 1.4255744255744256) internal successors, (1427), 1001 states have internal predecessors, (1427), 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) [2022-03-17 23:43:21,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1006 states to 1006 states and 1431 transitions. [2022-03-17 23:43:21,703 INFO L78 Accepts]: Start accepts. Automaton has 1006 states and 1431 transitions. Word has length 173 [2022-03-17 23:43:21,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:43:21,703 INFO L478 AbstractCegarLoop]: Abstraction has 1006 states and 1431 transitions. [2022-03-17 23:43:21,704 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 3 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:43:21,704 INFO L276 IsEmpty]: Start isEmpty. Operand 1006 states and 1431 transitions. [2022-03-17 23:43:21,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2022-03-17 23:43:21,705 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:43:21,705 INFO L500 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] [2022-03-17 23:43:21,705 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-03-17 23:43:21,705 INFO L403 AbstractCegarLoop]: === Iteration 41 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:43:21,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:43:21,705 INFO L85 PathProgramCache]: Analyzing trace with hash -1944610709, now seen corresponding path program 1 times [2022-03-17 23:43:21,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:43:21,706 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864520058] [2022-03-17 23:43:21,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:43:21,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:43:21,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:43:21,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:43:21,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:43:21,816 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 160 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-03-17 23:43:21,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:43:21,816 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864520058] [2022-03-17 23:43:21,816 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1864520058] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:43:21,816 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:43:21,816 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 23:43:21,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850951720] [2022-03-17 23:43:21,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:43:21,817 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 23:43:21,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:43:21,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 23:43:21,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 23:43:21,819 INFO L87 Difference]: Start difference. First operand 1006 states and 1431 transitions. Second operand has 4 states, 4 states have (on average 36.0) internal successors, (144), 3 states have internal predecessors, (144), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:43:24,181 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:43:26,209 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:43:26,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:43:26,592 INFO L93 Difference]: Finished difference Result 2437 states and 3480 transitions. [2022-03-17 23:43:26,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 23:43:26,592 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 36.0) internal successors, (144), 3 states have internal predecessors, (144), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 174 [2022-03-17 23:43:26,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:43:26,596 INFO L225 Difference]: With dead ends: 2437 [2022-03-17 23:43:26,596 INFO L226 Difference]: Without dead ends: 1457 [2022-03-17 23:43:26,597 INFO L911 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 [2022-03-17 23:43:26,597 INFO L912 BasicCegarLoop]: 309 mSDtfsCounter, 136 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 356 mSolverCounterSat, 11 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 503 SdHoareTripleChecker+Invalid, 369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 356 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-03-17 23:43:26,597 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [136 Valid, 503 Invalid, 369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 356 Invalid, 2 Unknown, 0 Unchecked, 4.7s Time] [2022-03-17 23:43:26,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1457 states. [2022-03-17 23:43:26,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1457 to 1455. [2022-03-17 23:43:26,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1455 states, 1450 states have (on average 1.423448275862069) internal successors, (2064), 1450 states have internal predecessors, (2064), 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) [2022-03-17 23:43:26,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1455 states to 1455 states and 2068 transitions. [2022-03-17 23:43:26,614 INFO L78 Accepts]: Start accepts. Automaton has 1455 states and 2068 transitions. Word has length 174 [2022-03-17 23:43:26,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:43:26,614 INFO L478 AbstractCegarLoop]: Abstraction has 1455 states and 2068 transitions. [2022-03-17 23:43:26,614 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.0) internal successors, (144), 3 states have internal predecessors, (144), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:43:26,614 INFO L276 IsEmpty]: Start isEmpty. Operand 1455 states and 2068 transitions. [2022-03-17 23:43:26,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2022-03-17 23:43:26,616 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:43:26,616 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:43:26,616 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-03-17 23:43:26,616 INFO L403 AbstractCegarLoop]: === Iteration 42 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:43:26,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:43:26,616 INFO L85 PathProgramCache]: Analyzing trace with hash 1905362303, now seen corresponding path program 1 times [2022-03-17 23:43:26,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:43:26,616 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433761121] [2022-03-17 23:43:26,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:43:26,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:43:26,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:43:26,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:43:26,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:43:26,728 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 154 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-03-17 23:43:26,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:43:26,728 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1433761121] [2022-03-17 23:43:26,728 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1433761121] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:43:26,728 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:43:26,728 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 23:43:26,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430022210] [2022-03-17 23:43:26,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:43:26,729 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 23:43:26,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:43:26,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 23:43:26,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 23:43:26,729 INFO L87 Difference]: Start difference. First operand 1455 states and 2068 transitions. Second operand has 4 states, 4 states have (on average 32.0) internal successors, (128), 3 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:43:27,976 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:43:29,996 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:43:30,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:43:30,792 INFO L93 Difference]: Finished difference Result 3329 states and 4748 transitions. [2022-03-17 23:43:30,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 23:43:30,792 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.0) internal successors, (128), 3 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 175 [2022-03-17 23:43:30,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:43:30,797 INFO L225 Difference]: With dead ends: 3329 [2022-03-17 23:43:30,797 INFO L226 Difference]: Without dead ends: 1900 [2022-03-17 23:43:30,798 INFO L911 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 [2022-03-17 23:43:30,800 INFO L912 BasicCegarLoop]: 331 mSDtfsCounter, 138 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 379 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 525 SdHoareTripleChecker+Invalid, 391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 379 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-03-17 23:43:30,800 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [138 Valid, 525 Invalid, 391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 379 Invalid, 1 Unknown, 0 Unchecked, 4.0s Time] [2022-03-17 23:43:30,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1900 states. [2022-03-17 23:43:30,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1900 to 1894. [2022-03-17 23:43:30,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1894 states, 1889 states have (on average 1.424563260984648) internal successors, (2691), 1889 states have internal predecessors, (2691), 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) [2022-03-17 23:43:30,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1894 states to 1894 states and 2695 transitions. [2022-03-17 23:43:30,823 INFO L78 Accepts]: Start accepts. Automaton has 1894 states and 2695 transitions. Word has length 175 [2022-03-17 23:43:30,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:43:30,823 INFO L478 AbstractCegarLoop]: Abstraction has 1894 states and 2695 transitions. [2022-03-17 23:43:30,823 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.0) internal successors, (128), 3 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:43:30,823 INFO L276 IsEmpty]: Start isEmpty. Operand 1894 states and 2695 transitions. [2022-03-17 23:43:30,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2022-03-17 23:43:30,825 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:43:30,825 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:43:30,825 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-03-17 23:43:30,825 INFO L403 AbstractCegarLoop]: === Iteration 43 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:43:30,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:43:30,826 INFO L85 PathProgramCache]: Analyzing trace with hash 1431336320, now seen corresponding path program 1 times [2022-03-17 23:43:30,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:43:30,826 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428902635] [2022-03-17 23:43:30,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:43:30,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:43:30,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:43:30,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:43:30,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:43:30,908 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2022-03-17 23:43:30,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:43:30,909 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [428902635] [2022-03-17 23:43:30,909 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [428902635] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:43:30,909 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:43:30,910 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 23:43:30,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059905993] [2022-03-17 23:43:30,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:43:30,910 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 23:43:30,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:43:30,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 23:43:30,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 23:43:30,911 INFO L87 Difference]: Start difference. First operand 1894 states and 2695 transitions. Second operand has 4 states, 4 states have (on average 25.75) internal successors, (103), 3 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) [2022-03-17 23:43:32,637 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:43:34,837 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:43:35,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:43:35,129 INFO L93 Difference]: Finished difference Result 3789 states and 5397 transitions. [2022-03-17 23:43:35,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 23:43:35,130 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 3 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 175 [2022-03-17 23:43:35,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:43:35,134 INFO L225 Difference]: With dead ends: 3789 [2022-03-17 23:43:35,134 INFO L226 Difference]: Without dead ends: 1921 [2022-03-17 23:43:35,136 INFO L911 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 [2022-03-17 23:43:35,136 INFO L912 BasicCegarLoop]: 229 mSDtfsCounter, 15 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 261 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 423 SdHoareTripleChecker+Invalid, 265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 261 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-03-17 23:43:35,137 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 423 Invalid, 265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 261 Invalid, 1 Unknown, 0 Unchecked, 4.2s Time] [2022-03-17 23:43:35,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1921 states. [2022-03-17 23:43:35,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1921 to 1921. [2022-03-17 23:43:35,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1921 states, 1916 states have (on average 1.4227557411273486) internal successors, (2726), 1916 states have internal predecessors, (2726), 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) [2022-03-17 23:43:35,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1921 states to 1921 states and 2730 transitions. [2022-03-17 23:43:35,162 INFO L78 Accepts]: Start accepts. Automaton has 1921 states and 2730 transitions. Word has length 175 [2022-03-17 23:43:35,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:43:35,163 INFO L478 AbstractCegarLoop]: Abstraction has 1921 states and 2730 transitions. [2022-03-17 23:43:35,164 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 3 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) [2022-03-17 23:43:35,164 INFO L276 IsEmpty]: Start isEmpty. Operand 1921 states and 2730 transitions. [2022-03-17 23:43:35,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2022-03-17 23:43:35,166 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:43:35,166 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:43:35,167 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-03-17 23:43:35,167 INFO L403 AbstractCegarLoop]: === Iteration 44 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:43:35,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:43:35,167 INFO L85 PathProgramCache]: Analyzing trace with hash 1624267521, now seen corresponding path program 1 times [2022-03-17 23:43:35,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:43:35,167 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [396332324] [2022-03-17 23:43:35,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:43:35,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:43:35,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:43:35,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:43:35,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:43:35,243 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2022-03-17 23:43:35,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:43:35,243 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [396332324] [2022-03-17 23:43:35,243 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [396332324] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:43:35,243 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:43:35,243 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 23:43:35,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29637030] [2022-03-17 23:43:35,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:43:35,243 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 23:43:35,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:43:35,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 23:43:35,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 23:43:35,244 INFO L87 Difference]: Start difference. First operand 1921 states and 2730 transitions. Second operand has 4 states, 4 states have (on average 21.75) internal successors, (87), 3 states have internal predecessors, (87), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:43:37,137 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:43:39,100 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:43:39,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:43:39,351 INFO L93 Difference]: Finished difference Result 3818 states and 5433 transitions. [2022-03-17 23:43:39,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 23:43:39,352 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 3 states have internal predecessors, (87), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 175 [2022-03-17 23:43:39,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:43:39,356 INFO L225 Difference]: With dead ends: 3818 [2022-03-17 23:43:39,356 INFO L226 Difference]: Without dead ends: 1923 [2022-03-17 23:43:39,358 INFO L911 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 [2022-03-17 23:43:39,359 INFO L912 BasicCegarLoop]: 217 mSDtfsCounter, 4 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 248 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 402 SdHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-03-17 23:43:39,359 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 402 Invalid, 250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 248 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-03-17 23:43:39,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1923 states. [2022-03-17 23:43:39,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1923 to 1923. [2022-03-17 23:43:39,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1923 states, 1918 states have (on average 1.4223149113660063) internal successors, (2728), 1918 states have internal predecessors, (2728), 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) [2022-03-17 23:43:39,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1923 states to 1923 states and 2732 transitions. [2022-03-17 23:43:39,403 INFO L78 Accepts]: Start accepts. Automaton has 1923 states and 2732 transitions. Word has length 175 [2022-03-17 23:43:39,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:43:39,403 INFO L478 AbstractCegarLoop]: Abstraction has 1923 states and 2732 transitions. [2022-03-17 23:43:39,403 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 3 states have internal predecessors, (87), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:43:39,403 INFO L276 IsEmpty]: Start isEmpty. Operand 1923 states and 2732 transitions. [2022-03-17 23:43:39,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2022-03-17 23:43:39,405 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:43:39,405 INFO L500 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:43:39,405 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-03-17 23:43:39,405 INFO L403 AbstractCegarLoop]: === Iteration 45 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:43:39,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:43:39,405 INFO L85 PathProgramCache]: Analyzing trace with hash 49926337, now seen corresponding path program 1 times [2022-03-17 23:43:39,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:43:39,405 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225349148] [2022-03-17 23:43:39,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:43:39,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:43:39,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:43:39,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:43:39,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:43:39,498 INFO L134 CoverageAnalysis]: Checked inductivity of 286 backedges. 220 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-03-17 23:43:39,498 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:43:39,498 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1225349148] [2022-03-17 23:43:39,498 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1225349148] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:43:39,498 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:43:39,498 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:43:39,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768311048] [2022-03-17 23:43:39,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:43:39,498 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:43:39,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:43:39,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:43:39,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:43:39,499 INFO L87 Difference]: Start difference. First operand 1923 states and 2732 transitions. Second operand has 5 states, 5 states have (on average 26.0) internal successors, (130), 4 states have internal predecessors, (130), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:43:41,054 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:43:42,967 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:43:44,993 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:43:46,532 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:43:46,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:43:46,972 INFO L93 Difference]: Finished difference Result 4226 states and 5998 transitions. [2022-03-17 23:43:46,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:43:46,973 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.0) internal successors, (130), 4 states have internal predecessors, (130), 1 states have call successors, (3), 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 186 [2022-03-17 23:43:46,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:43:46,987 INFO L225 Difference]: With dead ends: 4226 [2022-03-17 23:43:46,987 INFO L226 Difference]: Without dead ends: 2331 [2022-03-17 23:43:46,989 INFO L911 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 [2022-03-17 23:43:46,990 INFO L912 BasicCegarLoop]: 136 mSDtfsCounter, 111 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 468 mSolverCounterSat, 49 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 386 SdHoareTripleChecker+Invalid, 518 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 468 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2022-03-17 23:43:46,990 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [111 Valid, 386 Invalid, 518 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 468 Invalid, 1 Unknown, 0 Unchecked, 7.4s Time] [2022-03-17 23:43:46,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2331 states. [2022-03-17 23:43:47,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2331 to 2043. [2022-03-17 23:43:47,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2043 states, 2038 states have (on average 1.4141315014720315) internal successors, (2882), 2038 states have internal predecessors, (2882), 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) [2022-03-17 23:43:47,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2043 states to 2043 states and 2886 transitions. [2022-03-17 23:43:47,071 INFO L78 Accepts]: Start accepts. Automaton has 2043 states and 2886 transitions. Word has length 186 [2022-03-17 23:43:47,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:43:47,071 INFO L478 AbstractCegarLoop]: Abstraction has 2043 states and 2886 transitions. [2022-03-17 23:43:47,071 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.0) internal successors, (130), 4 states have internal predecessors, (130), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:43:47,071 INFO L276 IsEmpty]: Start isEmpty. Operand 2043 states and 2886 transitions. [2022-03-17 23:43:47,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2022-03-17 23:43:47,079 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:43:47,079 INFO L500 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-03-17 23:43:47,079 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-03-17 23:43:47,079 INFO L403 AbstractCegarLoop]: === Iteration 46 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:43:47,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:43:47,080 INFO L85 PathProgramCache]: Analyzing trace with hash 350278683, now seen corresponding path program 1 times [2022-03-17 23:43:47,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:43:47,080 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065094576] [2022-03-17 23:43:47,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:43:47,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:43:47,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:43:47,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:43:47,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:43:47,284 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 159 proven. 0 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2022-03-17 23:43:47,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:43:47,284 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065094576] [2022-03-17 23:43:47,284 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2065094576] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:43:47,284 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:43:47,284 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:43:47,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959174495] [2022-03-17 23:43:47,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:43:47,284 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:43:47,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:43:47,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:43:47,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:43:47,285 INFO L87 Difference]: Start difference. First operand 2043 states and 2886 transitions. Second operand has 5 states, 5 states have (on average 25.6) internal successors, (128), 4 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:43:49,989 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:43:52,012 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:43:53,765 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 [] [2022-03-17 23:43:54,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:43:54,191 INFO L93 Difference]: Finished difference Result 4255 states and 6023 transitions. [2022-03-17 23:43:54,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:43:54,192 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.6) internal successors, (128), 4 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 186 [2022-03-17 23:43:54,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:43:54,195 INFO L225 Difference]: With dead ends: 4255 [2022-03-17 23:43:54,196 INFO L226 Difference]: Without dead ends: 2240 [2022-03-17 23:43:54,198 INFO L911 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 [2022-03-17 23:43:54,198 INFO L912 BasicCegarLoop]: 247 mSDtfsCounter, 37 mSDsluCounter, 366 mSDsCounter, 0 mSdLazyCounter, 488 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 613 SdHoareTripleChecker+Invalid, 494 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 488 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2022-03-17 23:43:54,198 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 613 Invalid, 494 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 488 Invalid, 1 Unknown, 0 Unchecked, 6.9s Time] [2022-03-17 23:43:54,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2240 states. [2022-03-17 23:43:54,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2240 to 2155. [2022-03-17 23:43:54,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2155 states, 2150 states have (on average 1.4148837209302325) internal successors, (3042), 2150 states have internal predecessors, (3042), 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) [2022-03-17 23:43:54,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2155 states to 2155 states and 3046 transitions. [2022-03-17 23:43:54,251 INFO L78 Accepts]: Start accepts. Automaton has 2155 states and 3046 transitions. Word has length 186 [2022-03-17 23:43:54,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:43:54,251 INFO L478 AbstractCegarLoop]: Abstraction has 2155 states and 3046 transitions. [2022-03-17 23:43:54,251 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.6) internal successors, (128), 4 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:43:54,251 INFO L276 IsEmpty]: Start isEmpty. Operand 2155 states and 3046 transitions. [2022-03-17 23:43:54,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-03-17 23:43:54,253 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:43:54,253 INFO L500 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:43:54,253 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-03-17 23:43:54,253 INFO L403 AbstractCegarLoop]: === Iteration 47 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:43:54,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:43:54,254 INFO L85 PathProgramCache]: Analyzing trace with hash -746379742, now seen corresponding path program 1 times [2022-03-17 23:43:54,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:43:54,254 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [864041000] [2022-03-17 23:43:54,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:43:54,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:43:54,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:43:54,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:43:54,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:43:54,352 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 214 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-03-17 23:43:54,352 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:43:54,352 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [864041000] [2022-03-17 23:43:54,352 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [864041000] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:43:54,352 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:43:54,352 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:43:54,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782539964] [2022-03-17 23:43:54,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:43:54,353 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:43:54,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:43:54,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:43:54,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:43:54,353 INFO L87 Difference]: Start difference. First operand 2155 states and 3046 transitions. Second operand has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:43:56,367 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:43:56,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:43:56,780 INFO L93 Difference]: Finished difference Result 4371 states and 6177 transitions. [2022-03-17 23:43:56,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:43:56,781 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 1 states have call successors, (3), 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 189 [2022-03-17 23:43:56,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:43:56,785 INFO L225 Difference]: With dead ends: 4371 [2022-03-17 23:43:56,785 INFO L226 Difference]: Without dead ends: 2244 [2022-03-17 23:43:56,787 INFO L911 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 [2022-03-17 23:43:56,787 INFO L912 BasicCegarLoop]: 244 mSDtfsCounter, 62 mSDsluCounter, 362 mSDsCounter, 0 mSdLazyCounter, 512 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 606 SdHoareTripleChecker+Invalid, 518 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 512 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-17 23:43:56,787 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [62 Valid, 606 Invalid, 518 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 512 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-17 23:43:56,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2244 states. [2022-03-17 23:43:56,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2244 to 2155. [2022-03-17 23:43:56,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2155 states, 2150 states have (on average 1.4134883720930234) internal successors, (3039), 2150 states have internal predecessors, (3039), 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) [2022-03-17 23:43:56,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2155 states to 2155 states and 3043 transitions. [2022-03-17 23:43:56,844 INFO L78 Accepts]: Start accepts. Automaton has 2155 states and 3043 transitions. Word has length 189 [2022-03-17 23:43:56,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:43:56,844 INFO L478 AbstractCegarLoop]: Abstraction has 2155 states and 3043 transitions. [2022-03-17 23:43:56,844 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:43:56,844 INFO L276 IsEmpty]: Start isEmpty. Operand 2155 states and 3043 transitions. [2022-03-17 23:43:56,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2022-03-17 23:43:56,847 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:43:56,847 INFO L500 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:43:56,847 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-03-17 23:43:56,847 INFO L403 AbstractCegarLoop]: === Iteration 48 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:43:56,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:43:56,847 INFO L85 PathProgramCache]: Analyzing trace with hash -2132148959, now seen corresponding path program 1 times [2022-03-17 23:43:56,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:43:56,847 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009726228] [2022-03-17 23:43:56,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:43:56,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:43:56,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:43:56,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:43:56,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:43:56,956 INFO L134 CoverageAnalysis]: Checked inductivity of 311 backedges. 240 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2022-03-17 23:43:56,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:43:56,956 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1009726228] [2022-03-17 23:43:56,956 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1009726228] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:43:56,957 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:43:56,957 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:43:56,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651681771] [2022-03-17 23:43:56,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:43:56,957 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:43:56,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:43:56,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:43:56,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:43:56,958 INFO L87 Difference]: Start difference. First operand 2155 states and 3043 transitions. Second operand has 5 states, 5 states have (on average 27.0) internal successors, (135), 4 states have internal predecessors, (135), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:43:58,781 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:44:00,809 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:44:02,485 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:44:04,506 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:44:04,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:44:04,931 INFO L93 Difference]: Finished difference Result 4690 states and 6616 transitions. [2022-03-17 23:44:04,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:44:04,931 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.0) internal successors, (135), 4 states have internal predecessors, (135), 1 states have call successors, (3), 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 196 [2022-03-17 23:44:04,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:44:04,934 INFO L225 Difference]: With dead ends: 4690 [2022-03-17 23:44:04,935 INFO L226 Difference]: Without dead ends: 2563 [2022-03-17 23:44:04,937 INFO L911 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 [2022-03-17 23:44:04,937 INFO L912 BasicCegarLoop]: 140 mSDtfsCounter, 106 mSDsluCounter, 254 mSDsCounter, 0 mSdLazyCounter, 469 mSolverCounterSat, 53 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 394 SdHoareTripleChecker+Invalid, 524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 469 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2022-03-17 23:44:04,937 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [106 Valid, 394 Invalid, 524 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 469 Invalid, 2 Unknown, 0 Unchecked, 7.9s Time] [2022-03-17 23:44:04,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2563 states. [2022-03-17 23:44:04,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2563 to 2295. [2022-03-17 23:44:04,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2295 states, 2290 states have (on average 1.4078602620087337) internal successors, (3224), 2290 states have internal predecessors, (3224), 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) [2022-03-17 23:44:04,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2295 states to 2295 states and 3228 transitions. [2022-03-17 23:44:04,991 INFO L78 Accepts]: Start accepts. Automaton has 2295 states and 3228 transitions. Word has length 196 [2022-03-17 23:44:04,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:44:04,991 INFO L478 AbstractCegarLoop]: Abstraction has 2295 states and 3228 transitions. [2022-03-17 23:44:04,991 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.0) internal successors, (135), 4 states have internal predecessors, (135), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:44:04,991 INFO L276 IsEmpty]: Start isEmpty. Operand 2295 states and 3228 transitions. [2022-03-17 23:44:04,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2022-03-17 23:44:04,993 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:44:04,993 INFO L500 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:44:04,993 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-03-17 23:44:04,994 INFO L403 AbstractCegarLoop]: === Iteration 49 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:44:04,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:44:04,994 INFO L85 PathProgramCache]: Analyzing trace with hash -2042368162, now seen corresponding path program 1 times [2022-03-17 23:44:04,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:44:04,994 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1114578862] [2022-03-17 23:44:04,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:44:04,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:44:05,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:44:05,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:44:05,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:44:05,463 INFO L134 CoverageAnalysis]: Checked inductivity of 363 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2022-03-17 23:44:05,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:44:05,463 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1114578862] [2022-03-17 23:44:05,463 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1114578862] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:44:05,463 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:44:05,463 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-17 23:44:05,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982592849] [2022-03-17 23:44:05,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:44:05,463 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-17 23:44:05,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:44:05,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-17 23:44:05,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-03-17 23:44:05,464 INFO L87 Difference]: Start difference. First operand 2295 states and 3228 transitions. Second operand has 7 states, 6 states have (on average 13.666666666666666) internal successors, (82), 5 states have internal predecessors, (82), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:44:06,619 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:44:08,638 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:44:11,142 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:44:13,164 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:44:15,191 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 [] [2022-03-17 23:44:15,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:44:15,638 INFO L93 Difference]: Finished difference Result 4583 states and 6448 transitions. [2022-03-17 23:44:15,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-17 23:44:15,638 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 13.666666666666666) internal successors, (82), 5 states have internal predecessors, (82), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 198 [2022-03-17 23:44:15,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:44:15,641 INFO L225 Difference]: With dead ends: 4583 [2022-03-17 23:44:15,641 INFO L226 Difference]: Without dead ends: 2295 [2022-03-17 23:44:15,644 INFO L911 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 [2022-03-17 23:44:15,644 INFO L912 BasicCegarLoop]: 215 mSDtfsCounter, 7 mSDsluCounter, 657 mSDsCounter, 0 mSdLazyCounter, 447 mSolverCounterSat, 4 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 872 SdHoareTripleChecker+Invalid, 454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 447 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.1s IncrementalHoareTripleChecker+Time [2022-03-17 23:44:15,644 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 872 Invalid, 454 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 447 Invalid, 3 Unknown, 0 Unchecked, 10.1s Time] [2022-03-17 23:44:15,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2295 states. [2022-03-17 23:44:15,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2295 to 2295. [2022-03-17 23:44:15,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2295 states, 2290 states have (on average 1.4074235807860263) internal successors, (3223), 2290 states have internal predecessors, (3223), 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) [2022-03-17 23:44:15,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2295 states to 2295 states and 3227 transitions. [2022-03-17 23:44:15,694 INFO L78 Accepts]: Start accepts. Automaton has 2295 states and 3227 transitions. Word has length 198 [2022-03-17 23:44:15,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:44:15,694 INFO L478 AbstractCegarLoop]: Abstraction has 2295 states and 3227 transitions. [2022-03-17 23:44:15,694 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 13.666666666666666) internal successors, (82), 5 states have internal predecessors, (82), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:44:15,694 INFO L276 IsEmpty]: Start isEmpty. Operand 2295 states and 3227 transitions. [2022-03-17 23:44:15,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2022-03-17 23:44:15,697 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:44:15,697 INFO L500 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:44:15,697 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-03-17 23:44:15,697 INFO L403 AbstractCegarLoop]: === Iteration 50 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:44:15,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:44:15,699 INFO L85 PathProgramCache]: Analyzing trace with hash -1798831299, now seen corresponding path program 1 times [2022-03-17 23:44:15,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:44:15,699 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1422643039] [2022-03-17 23:44:15,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:44:15,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:44:16,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:44:16,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:44:16,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:44:16,435 INFO L134 CoverageAnalysis]: Checked inductivity of 363 backedges. 0 proven. 209 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2022-03-17 23:44:16,435 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:44:16,435 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1422643039] [2022-03-17 23:44:16,435 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1422643039] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-17 23:44:16,435 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [476966366] [2022-03-17 23:44:16,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:44:16,435 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-17 23:44:16,435 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-17 23:44:16,437 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) [2022-03-17 23:44:16,437 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-03-17 23:44:17,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:44:17,413 INFO L263 TraceCheckSpWp]: Trace formula consists of 1293 conjuncts, 174 conjunts are in the unsatisfiable core [2022-03-17 23:44:17,440 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-17 23:44:17,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:44:17,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:44:17,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:44:17,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:44:17,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:44:17,930 INFO L356 Elim1Store]: treesize reduction 1040, result has 8.0 percent of original size [2022-03-17 23:44:17,932 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 10 case distinctions, treesize of input 5812078 treesize of output 1233015 [2022-03-17 23:44:18,401 INFO L190 IndexEqualityManager]: detected not equals via solver