/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.07.i.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05ce600 [2022-02-24 00:43:10,726 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-24 00:43:10,728 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-24 00:43:10,772 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-24 00:43:10,772 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-24 00:43:10,775 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-24 00:43:10,777 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-24 00:43:10,778 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-24 00:43:10,778 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-24 00:43:10,779 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-24 00:43:10,780 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-24 00:43:10,780 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-24 00:43:10,780 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-24 00:43:10,781 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-24 00:43:10,782 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-24 00:43:10,782 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-24 00:43:10,783 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-24 00:43:10,783 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-24 00:43:10,784 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-24 00:43:10,785 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-24 00:43:10,786 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-24 00:43:10,789 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-24 00:43:10,790 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-24 00:43:10,791 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-24 00:43:10,792 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-02-24 00:43:10,798 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-24 00:43:10,798 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-24 00:43:10,799 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-24 00:43:10,800 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/loopacceleration/qvasr/qvasr_64.epf [2022-02-24 00:43:10,816 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-24 00:43:10,816 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-24 00:43:10,817 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-24 00:43:10,817 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-24 00:43:10,817 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-24 00:43:10,817 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-24 00:43:10,817 INFO L138 SettingsManager]: * Use SBE=true [2022-02-24 00:43:10,818 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-24 00:43:10,818 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-24 00:43:10,818 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-24 00:43:10,818 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-24 00:43:10,818 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-24 00:43:10,818 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-24 00:43:10,818 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-24 00:43:10,818 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-24 00:43:10,819 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-24 00:43:10,819 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-24 00:43:10,819 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-24 00:43:10,819 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-24 00:43:10,819 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-24 00:43:10,819 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-24 00:43:10,819 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-24 00:43:10,819 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-24 00:43:10,820 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-24 00:43:10,820 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-24 00:43:10,820 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-24 00:43:10,820 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-02-24 00:43:10,820 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-02-24 00:43:10,821 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-24 00:43:10,821 INFO L138 SettingsManager]: * TransformationType=LOOP_ACCELERATION_QVASR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-02-24 00:43:11,008 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-24 00:43:11,029 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-24 00:43:11,031 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-24 00:43:11,032 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-24 00:43:11,033 INFO L275 PluginConnector]: CDTParser initialized [2022-02-24 00:43:11,033 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl/s3_srvr.blast.07.i.cil-1.c [2022-02-24 00:43:11,075 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aeec68195/23fbb38cc30846a4a58a4364961c6a0d/FLAG27b469b9f [2022-02-24 00:43:11,553 INFO L306 CDTParser]: Found 1 translation units. [2022-02-24 00:43:11,554 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.07.i.cil-1.c [2022-02-24 00:43:11,570 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aeec68195/23fbb38cc30846a4a58a4364961c6a0d/FLAG27b469b9f [2022-02-24 00:43:12,060 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aeec68195/23fbb38cc30846a4a58a4364961c6a0d [2022-02-24 00:43:12,062 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-24 00:43:12,063 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-02-24 00:43:12,064 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-24 00:43:12,064 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-24 00:43:12,067 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-24 00:43:12,068 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 12:43:12" (1/1) ... [2022-02-24 00:43:12,068 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39448603 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:43:12, skipping insertion in model container [2022-02-24 00:43:12,069 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 12:43:12" (1/1) ... [2022-02-24 00:43:12,074 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-24 00:43:12,129 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-24 00:43:12,410 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.07.i.cil-1.c[74369,74382] [2022-02-24 00:43:12,415 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-24 00:43:12,423 INFO L203 MainTranslator]: Completed pre-run [2022-02-24 00:43:12,536 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.07.i.cil-1.c[74369,74382] [2022-02-24 00:43:12,538 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-24 00:43:12,552 INFO L208 MainTranslator]: Completed translation [2022-02-24 00:43:12,553 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:43:12 WrapperNode [2022-02-24 00:43:12,553 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-24 00:43:12,554 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-24 00:43:12,554 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-24 00:43:12,555 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-24 00:43:12,562 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:43:12" (1/1) ... [2022-02-24 00:43:12,562 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:43:12" (1/1) ... [2022-02-24 00:43:12,587 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:43:12" (1/1) ... [2022-02-24 00:43:12,587 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:43:12" (1/1) ... [2022-02-24 00:43:12,634 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:43:12" (1/1) ... [2022-02-24 00:43:12,647 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:43:12" (1/1) ... [2022-02-24 00:43:12,650 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:43:12" (1/1) ... [2022-02-24 00:43:12,653 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-24 00:43:12,654 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-24 00:43:12,654 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-24 00:43:12,654 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-24 00:43:12,660 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:43:12" (1/1) ... [2022-02-24 00:43:12,664 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-24 00:43:12,672 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-24 00:43:12,681 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-02-24 00:43:12,712 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-02-24 00:43:12,722 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-02-24 00:43:12,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-24 00:43:12,723 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-02-24 00:43:12,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_server_method [2022-02-24 00:43:12,723 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_server_method [2022-02-24 00:43:12,723 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-02-24 00:43:12,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-02-24 00:43:12,724 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-02-24 00:43:12,724 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-02-24 00:43:12,725 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-02-24 00:43:12,725 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-02-24 00:43:12,725 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-02-24 00:43:12,725 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-02-24 00:43:12,725 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-24 00:43:12,725 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-02-24 00:43:12,725 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-02-24 00:43:12,725 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-02-24 00:43:12,725 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-02-24 00:43:12,725 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-02-24 00:43:12,725 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-02-24 00:43:12,725 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_server_method [2022-02-24 00:43:12,725 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-02-24 00:43:12,726 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-02-24 00:43:12,726 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_server_method [2022-02-24 00:43:12,726 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-02-24 00:43:12,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-02-24 00:43:12,726 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-02-24 00:43:12,726 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-02-24 00:43:12,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-24 00:43:12,726 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-02-24 00:43:12,726 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-24 00:43:12,726 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-02-24 00:43:12,726 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-02-24 00:43:12,726 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-02-24 00:43:12,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-24 00:43:12,727 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-24 00:43:12,727 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-02-24 00:43:12,727 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-02-24 00:43:12,727 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-02-24 00:43:12,727 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-02-24 00:43:12,727 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-24 00:43:12,905 INFO L234 CfgBuilder]: Building ICFG [2022-02-24 00:43:12,906 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-24 00:43:13,854 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-02-24 00:43:14,212 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2022-02-24 00:43:14,212 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2022-02-24 00:43:14,221 INFO L275 CfgBuilder]: Performing block encoding [2022-02-24 00:43:14,226 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-24 00:43:14,226 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-02-24 00:43:14,228 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 12:43:14 BoogieIcfgContainer [2022-02-24 00:43:14,228 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-24 00:43:14,228 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-02-24 00:43:14,228 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-02-24 00:43:14,229 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-02-24 00:43:14,232 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 12:43:14" (1/1) ... [2022-02-24 00:43:14,263 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 24.02 12:43:14 BasicIcfg [2022-02-24 00:43:14,263 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-02-24 00:43:14,264 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-24 00:43:14,264 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-24 00:43:14,276 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-24 00:43:14,276 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.02 12:43:12" (1/4) ... [2022-02-24 00:43:14,277 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7947f01a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 12:43:14, skipping insertion in model container [2022-02-24 00:43:14,277 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:43:12" (2/4) ... [2022-02-24 00:43:14,277 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7947f01a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 12:43:14, skipping insertion in model container [2022-02-24 00:43:14,277 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 12:43:14" (3/4) ... [2022-02-24 00:43:14,277 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7947f01a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.02 12:43:14, skipping insertion in model container [2022-02-24 00:43:14,277 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 24.02 12:43:14" (4/4) ... [2022-02-24 00:43:14,278 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr.blast.07.i.cil-1.cqvasr [2022-02-24 00:43:14,281 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-24 00:43:14,281 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-24 00:43:14,322 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-24 00:43:14,326 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-02-24 00:43:14,326 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-02-24 00:43:14,339 INFO L276 IsEmpty]: Start isEmpty. Operand has 158 states, 150 states have (on average 1.7066666666666668) internal successors, (256), 151 states have internal predecessors, (256), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-02-24 00:43:14,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-02-24 00:43:14,345 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:43:14,346 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:43:14,346 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:43:14,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:43:14,350 INFO L85 PathProgramCache]: Analyzing trace with hash -1099342272, now seen corresponding path program 1 times [2022-02-24 00:43:14,355 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:43:14,356 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1519068172] [2022-02-24 00:43:14,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:43:14,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:43:14,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:43:14,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:43:14,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:43:14,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 00:43:14,810 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:43:14,810 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1519068172] [2022-02-24 00:43:14,811 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1519068172] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:43:14,811 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:43:14,811 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:43:14,812 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660407941] [2022-02-24 00:43:14,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:43:14,817 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:43:14,817 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:43:14,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:43:14,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:43:14,846 INFO L87 Difference]: Start difference. First operand has 158 states, 150 states have (on average 1.7066666666666668) internal successors, (256), 151 states have internal predecessors, (256), 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 7.6) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:43:18,183 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:43:18,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:43:18,810 INFO L93 Difference]: Finished difference Result 428 states and 723 transitions. [2022-02-24 00:43:18,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:43:18,812 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (3), 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 42 [2022-02-24 00:43:18,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:43:18,820 INFO L225 Difference]: With dead ends: 428 [2022-02-24 00:43:18,820 INFO L226 Difference]: Without dead ends: 259 [2022-02-24 00:43:18,822 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:43:18,825 INFO L933 BasicCegarLoop]: 157 mSDtfsCounter, 163 mSDsluCounter, 304 mSDsCounter, 0 mSdLazyCounter, 532 mSolverCounterSat, 64 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 461 SdHoareTripleChecker+Invalid, 597 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 532 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-02-24 00:43:18,829 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [163 Valid, 461 Invalid, 597 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 532 Invalid, 1 Unknown, 0 Unchecked, 3.9s Time] [2022-02-24 00:43:18,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2022-02-24 00:43:18,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 170. [2022-02-24 00:43:18,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 165 states have (on average 1.5818181818181818) internal successors, (261), 165 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) [2022-02-24 00:43:18,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 265 transitions. [2022-02-24 00:43:18,920 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 265 transitions. Word has length 42 [2022-02-24 00:43:18,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:43:18,921 INFO L470 AbstractCegarLoop]: Abstraction has 170 states and 265 transitions. [2022-02-24 00:43:18,921 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:43:18,921 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 265 transitions. [2022-02-24 00:43:18,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-02-24 00:43:18,922 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:43:18,922 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:43:18,923 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-24 00:43:18,923 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:43:18,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:43:18,923 INFO L85 PathProgramCache]: Analyzing trace with hash -654778345, now seen corresponding path program 1 times [2022-02-24 00:43:18,923 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:43:18,923 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [20535034] [2022-02-24 00:43:18,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:43:18,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:43:19,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:43:19,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:43:19,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:43:19,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 00:43:19,133 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:43:19,133 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [20535034] [2022-02-24 00:43:19,133 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [20535034] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:43:19,133 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:43:19,133 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:43:19,133 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146758457] [2022-02-24 00:43:19,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:43:19,134 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:43:19,134 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:43:19,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:43:19,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:43:19,135 INFO L87 Difference]: Start difference. First operand 170 states and 265 transitions. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:43:21,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:43:21,466 INFO L93 Difference]: Finished difference Result 442 states and 693 transitions. [2022-02-24 00:43:21,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:43:21,466 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (3), 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 43 [2022-02-24 00:43:21,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:43:21,468 INFO L225 Difference]: With dead ends: 442 [2022-02-24 00:43:21,468 INFO L226 Difference]: Without dead ends: 287 [2022-02-24 00:43:21,469 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:43:21,469 INFO L933 BasicCegarLoop]: 117 mSDtfsCounter, 130 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 342 SdHoareTripleChecker+Invalid, 541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-02-24 00:43:21,470 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [130 Valid, 342 Invalid, 541 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 477 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-02-24 00:43:21,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2022-02-24 00:43:21,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 199. [2022-02-24 00:43:21,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 194 states have (on average 1.6134020618556701) internal successors, (313), 194 states have internal predecessors, (313), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:43:21,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 317 transitions. [2022-02-24 00:43:21,479 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 317 transitions. Word has length 43 [2022-02-24 00:43:21,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:43:21,479 INFO L470 AbstractCegarLoop]: Abstraction has 199 states and 317 transitions. [2022-02-24 00:43:21,480 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:43:21,480 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 317 transitions. [2022-02-24 00:43:21,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-02-24 00:43:21,481 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:43:21,481 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:43:21,481 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-24 00:43:21,481 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:43:21,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:43:21,482 INFO L85 PathProgramCache]: Analyzing trace with hash 2114415540, now seen corresponding path program 1 times [2022-02-24 00:43:21,482 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:43:21,482 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [19126178] [2022-02-24 00:43:21,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:43:21,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:43:21,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:43:21,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:43:21,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:43:21,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 00:43:21,662 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:43:21,662 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [19126178] [2022-02-24 00:43:21,662 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [19126178] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:43:21,662 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:43:21,662 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:43:21,662 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130029748] [2022-02-24 00:43:21,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:43:21,664 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:43:21,664 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:43:21,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:43:21,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:43:21,665 INFO L87 Difference]: Start difference. First operand 199 states and 317 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:43:23,182 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:43:25,202 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:43:26,299 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 [] [2022-02-24 00:43:27,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:43:27,483 INFO L93 Difference]: Finished difference Result 501 states and 796 transitions. [2022-02-24 00:43:27,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:43:27,483 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (3), 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 48 [2022-02-24 00:43:27,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:43:27,485 INFO L225 Difference]: With dead ends: 501 [2022-02-24 00:43:27,485 INFO L226 Difference]: Without dead ends: 317 [2022-02-24 00:43:27,486 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:43:27,487 INFO L933 BasicCegarLoop]: 118 mSDtfsCounter, 119 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 480 mSolverCounterSat, 61 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 480 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-02-24 00:43:27,487 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 344 Invalid, 542 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 480 Invalid, 1 Unknown, 0 Unchecked, 5.8s Time] [2022-02-24 00:43:27,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2022-02-24 00:43:27,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 239. [2022-02-24 00:43:27,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239 states, 234 states have (on average 1.641025641025641) internal successors, (384), 234 states have internal predecessors, (384), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:43:27,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 388 transitions. [2022-02-24 00:43:27,496 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 388 transitions. Word has length 48 [2022-02-24 00:43:27,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:43:27,496 INFO L470 AbstractCegarLoop]: Abstraction has 239 states and 388 transitions. [2022-02-24 00:43:27,497 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:43:27,497 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 388 transitions. [2022-02-24 00:43:27,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-02-24 00:43:27,498 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:43:27,498 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:43:27,498 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-02-24 00:43:27,498 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:43:27,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:43:27,499 INFO L85 PathProgramCache]: Analyzing trace with hash 1123324387, now seen corresponding path program 1 times [2022-02-24 00:43:27,499 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:43:27,499 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173650010] [2022-02-24 00:43:27,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:43:27,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:43:27,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:43:27,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:43:27,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:43:27,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 00:43:27,631 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:43:27,633 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1173650010] [2022-02-24 00:43:27,633 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1173650010] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:43:27,633 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:43:27,633 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:43:27,633 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325582239] [2022-02-24 00:43:27,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:43:27,634 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:43:27,634 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:43:27,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:43:27,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:43:27,635 INFO L87 Difference]: Start difference. First operand 239 states and 388 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:43:28,949 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:43:31,199 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:43:33,228 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:43:33,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:43:33,672 INFO L93 Difference]: Finished difference Result 551 states and 886 transitions. [2022-02-24 00:43:33,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:43:33,673 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 49 [2022-02-24 00:43:33,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:43:33,674 INFO L225 Difference]: With dead ends: 551 [2022-02-24 00:43:33,675 INFO L226 Difference]: Without dead ends: 327 [2022-02-24 00:43:33,675 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:43:33,676 INFO L933 BasicCegarLoop]: 124 mSDtfsCounter, 118 mSDsluCounter, 232 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 62 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 356 SdHoareTripleChecker+Invalid, 546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-02-24 00:43:33,676 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [118 Valid, 356 Invalid, 546 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 483 Invalid, 1 Unknown, 0 Unchecked, 6.0s Time] [2022-02-24 00:43:33,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2022-02-24 00:43:33,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 250. [2022-02-24 00:43:33,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 250 states, 245 states have (on average 1.653061224489796) internal successors, (405), 245 states have internal predecessors, (405), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:43:33,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 409 transitions. [2022-02-24 00:43:33,684 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 409 transitions. Word has length 49 [2022-02-24 00:43:33,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:43:33,685 INFO L470 AbstractCegarLoop]: Abstraction has 250 states and 409 transitions. [2022-02-24 00:43:33,685 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:43:33,685 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 409 transitions. [2022-02-24 00:43:33,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-02-24 00:43:33,686 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:43:33,686 INFO L514 BasicCegarLoop]: trace histogram [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] [2022-02-24 00:43:33,687 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-02-24 00:43:33,687 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:43:33,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:43:33,687 INFO L85 PathProgramCache]: Analyzing trace with hash -41728279, now seen corresponding path program 1 times [2022-02-24 00:43:33,687 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:43:33,687 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [476663126] [2022-02-24 00:43:33,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:43:33,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:43:33,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:43:33,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:43:33,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:43:33,785 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-02-24 00:43:33,785 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:43:33,785 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [476663126] [2022-02-24 00:43:33,785 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [476663126] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:43:33,785 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:43:33,785 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:43:33,786 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411822774] [2022-02-24 00:43:33,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:43:33,786 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:43:33,786 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:43:33,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:43:33,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:43:33,787 INFO L87 Difference]: Start difference. First operand 250 states and 409 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:43:35,485 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:43:37,207 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:43:38,336 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:43:40,353 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:43:40,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:43:40,717 INFO L93 Difference]: Finished difference Result 513 states and 840 transitions. [2022-02-24 00:43:40,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:43:40,717 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 70 [2022-02-24 00:43:40,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:43:40,719 INFO L225 Difference]: With dead ends: 513 [2022-02-24 00:43:40,719 INFO L226 Difference]: Without dead ends: 278 [2022-02-24 00:43:40,719 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:43:40,720 INFO L933 BasicCegarLoop]: 186 mSDtfsCounter, 22 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 365 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 481 SdHoareTripleChecker+Invalid, 376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 365 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2022-02-24 00:43:40,720 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 481 Invalid, 376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 365 Invalid, 1 Unknown, 0 Unchecked, 6.9s Time] [2022-02-24 00:43:40,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2022-02-24 00:43:40,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 261. [2022-02-24 00:43:40,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 256 states have (on average 1.65625) internal successors, (424), 256 states have internal predecessors, (424), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:43:40,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 428 transitions. [2022-02-24 00:43:40,730 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 428 transitions. Word has length 70 [2022-02-24 00:43:40,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:43:40,730 INFO L470 AbstractCegarLoop]: Abstraction has 261 states and 428 transitions. [2022-02-24 00:43:40,730 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:43:40,730 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 428 transitions. [2022-02-24 00:43:40,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-02-24 00:43:40,733 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:43:40,734 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:43:40,734 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-02-24 00:43:40,734 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:43:40,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:43:40,734 INFO L85 PathProgramCache]: Analyzing trace with hash 596266299, now seen corresponding path program 1 times [2022-02-24 00:43:40,734 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:43:40,735 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948889263] [2022-02-24 00:43:40,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:43:40,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:43:40,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:43:40,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:43:40,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:43:40,861 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-02-24 00:43:40,861 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:43:40,861 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948889263] [2022-02-24 00:43:40,861 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1948889263] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:43:40,861 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:43:40,861 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:43:40,862 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000539446] [2022-02-24 00:43:40,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:43:40,863 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:43:40,863 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:43:40,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:43:40,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:43:40,864 INFO L87 Difference]: Start difference. First operand 261 states and 428 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:43:43,486 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:43:45,511 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:43:47,538 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:43:47,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:43:47,874 INFO L93 Difference]: Finished difference Result 513 states and 839 transitions. [2022-02-24 00:43:47,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:43:47,874 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 83 [2022-02-24 00:43:47,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:43:47,875 INFO L225 Difference]: With dead ends: 513 [2022-02-24 00:43:47,876 INFO L226 Difference]: Without dead ends: 278 [2022-02-24 00:43:47,876 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:43:47,877 INFO L933 BasicCegarLoop]: 187 mSDtfsCounter, 24 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 361 mSolverCounterSat, 10 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 483 SdHoareTripleChecker+Invalid, 374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 361 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2022-02-24 00:43:47,877 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 483 Invalid, 374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 361 Invalid, 3 Unknown, 0 Unchecked, 7.0s Time] [2022-02-24 00:43:47,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2022-02-24 00:43:47,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 261. [2022-02-24 00:43:47,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 256 states have (on average 1.65234375) internal successors, (423), 256 states have internal predecessors, (423), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:43:47,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 427 transitions. [2022-02-24 00:43:47,882 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 427 transitions. Word has length 83 [2022-02-24 00:43:47,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:43:47,883 INFO L470 AbstractCegarLoop]: Abstraction has 261 states and 427 transitions. [2022-02-24 00:43:47,885 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:43:47,885 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 427 transitions. [2022-02-24 00:43:47,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-02-24 00:43:47,886 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:43:47,886 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:43:47,886 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-02-24 00:43:47,886 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:43:47,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:43:47,886 INFO L85 PathProgramCache]: Analyzing trace with hash -1699841181, now seen corresponding path program 1 times [2022-02-24 00:43:47,887 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:43:47,887 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124861055] [2022-02-24 00:43:47,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:43:47,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:43:47,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:43:48,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:43:48,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:43:48,014 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-02-24 00:43:48,014 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:43:48,014 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1124861055] [2022-02-24 00:43:48,015 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1124861055] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:43:48,015 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:43:48,015 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:43:48,015 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785343654] [2022-02-24 00:43:48,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:43:48,016 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:43:48,016 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:43:48,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:43:48,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:43:48,016 INFO L87 Difference]: Start difference. First operand 261 states and 427 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:43:51,250 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:43:52,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:43:52,428 INFO L93 Difference]: Finished difference Result 572 states and 923 transitions. [2022-02-24 00:43:52,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:43:52,429 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 84 [2022-02-24 00:43:52,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:43:52,430 INFO L225 Difference]: With dead ends: 572 [2022-02-24 00:43:52,430 INFO L226 Difference]: Without dead ends: 337 [2022-02-24 00:43:52,431 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:43:52,431 INFO L933 BasicCegarLoop]: 125 mSDtfsCounter, 146 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 481 mSolverCounterSat, 61 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 358 SdHoareTripleChecker+Invalid, 543 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 481 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-02-24 00:43:52,431 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [146 Valid, 358 Invalid, 543 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 481 Invalid, 1 Unknown, 0 Unchecked, 4.4s Time] [2022-02-24 00:43:52,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2022-02-24 00:43:52,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 261. [2022-02-24 00:43:52,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 256 states have (on average 1.63671875) internal successors, (419), 256 states have internal predecessors, (419), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:43:52,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 423 transitions. [2022-02-24 00:43:52,437 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 423 transitions. Word has length 84 [2022-02-24 00:43:52,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:43:52,438 INFO L470 AbstractCegarLoop]: Abstraction has 261 states and 423 transitions. [2022-02-24 00:43:52,438 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:43:52,438 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 423 transitions. [2022-02-24 00:43:52,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-02-24 00:43:52,438 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:43:52,439 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:43:52,439 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-02-24 00:43:52,439 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:43:52,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:43:52,439 INFO L85 PathProgramCache]: Analyzing trace with hash 316535683, now seen corresponding path program 1 times [2022-02-24 00:43:52,439 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:43:52,439 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039007495] [2022-02-24 00:43:52,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:43:52,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:43:52,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:43:52,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:43:52,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:43:52,549 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-02-24 00:43:52,549 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:43:52,549 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039007495] [2022-02-24 00:43:52,549 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1039007495] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:43:52,549 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:43:52,549 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:43:52,549 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761973344] [2022-02-24 00:43:52,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:43:52,550 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:43:52,550 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:43:52,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:43:52,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:43:52,550 INFO L87 Difference]: Start difference. First operand 261 states and 423 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:43:55,377 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:43:57,363 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:43:57,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:43:57,697 INFO L93 Difference]: Finished difference Result 512 states and 830 transitions. [2022-02-24 00:43:57,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:43:57,697 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 84 [2022-02-24 00:43:57,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:43:57,698 INFO L225 Difference]: With dead ends: 512 [2022-02-24 00:43:57,698 INFO L226 Difference]: Without dead ends: 277 [2022-02-24 00:43:57,699 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:43:57,699 INFO L933 BasicCegarLoop]: 188 mSDtfsCounter, 26 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 361 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 485 SdHoareTripleChecker+Invalid, 371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 361 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-02-24 00:43:57,699 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [26 Valid, 485 Invalid, 371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 361 Invalid, 1 Unknown, 0 Unchecked, 5.1s Time] [2022-02-24 00:43:57,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2022-02-24 00:43:57,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 261. [2022-02-24 00:43:57,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 256 states have (on average 1.6328125) internal successors, (418), 256 states have internal predecessors, (418), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:43:57,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 422 transitions. [2022-02-24 00:43:57,705 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 422 transitions. Word has length 84 [2022-02-24 00:43:57,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:43:57,705 INFO L470 AbstractCegarLoop]: Abstraction has 261 states and 422 transitions. [2022-02-24 00:43:57,705 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:43:57,705 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 422 transitions. [2022-02-24 00:43:57,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-02-24 00:43:57,706 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:43:57,706 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:43:57,706 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-02-24 00:43:57,706 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:43:57,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:43:57,706 INFO L85 PathProgramCache]: Analyzing trace with hash 901926851, now seen corresponding path program 1 times [2022-02-24 00:43:57,707 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:43:57,707 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546252061] [2022-02-24 00:43:57,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:43:57,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:43:57,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:43:57,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:43:57,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:43:57,793 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-02-24 00:43:57,793 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:43:57,794 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546252061] [2022-02-24 00:43:57,794 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [546252061] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:43:57,794 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:43:57,794 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:43:57,794 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109784972] [2022-02-24 00:43:57,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:43:57,794 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:43:57,794 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:43:57,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:43:57,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:43:57,795 INFO L87 Difference]: Start difference. First operand 261 states and 422 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:43:59,046 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:44:00,451 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:44:01,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:44:01,618 INFO L93 Difference]: Finished difference Result 572 states and 915 transitions. [2022-02-24 00:44:01,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:44:01,619 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 84 [2022-02-24 00:44:01,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:44:01,620 INFO L225 Difference]: With dead ends: 572 [2022-02-24 00:44:01,620 INFO L226 Difference]: Without dead ends: 337 [2022-02-24 00:44:01,621 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:44:01,621 INFO L933 BasicCegarLoop]: 125 mSDtfsCounter, 139 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 358 SdHoareTripleChecker+Invalid, 543 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-02-24 00:44:01,621 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [139 Valid, 358 Invalid, 543 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 482 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2022-02-24 00:44:01,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2022-02-24 00:44:01,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 261. [2022-02-24 00:44:01,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 256 states have (on average 1.6171875) internal successors, (414), 256 states have internal predecessors, (414), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:44:01,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 418 transitions. [2022-02-24 00:44:01,627 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 418 transitions. Word has length 84 [2022-02-24 00:44:01,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:44:01,627 INFO L470 AbstractCegarLoop]: Abstraction has 261 states and 418 transitions. [2022-02-24 00:44:01,627 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:44:01,627 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 418 transitions. [2022-02-24 00:44:01,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-02-24 00:44:01,628 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:44:01,628 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:44:01,628 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-02-24 00:44:01,628 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:44:01,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:44:01,629 INFO L85 PathProgramCache]: Analyzing trace with hash -2008957213, now seen corresponding path program 1 times [2022-02-24 00:44:01,629 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:44:01,629 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460530801] [2022-02-24 00:44:01,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:44:01,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:44:01,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:44:01,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:44:01,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:44:01,715 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-02-24 00:44:01,717 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:44:01,717 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1460530801] [2022-02-24 00:44:01,717 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1460530801] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:44:01,717 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:44:01,718 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:44:01,718 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280301622] [2022-02-24 00:44:01,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:44:01,718 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:44:01,718 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:44:01,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:44:01,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:44:01,719 INFO L87 Difference]: Start difference. First operand 261 states and 418 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:44:02,866 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:44:04,239 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:44:05,500 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:44:06,931 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:44:07,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:44:07,375 INFO L93 Difference]: Finished difference Result 571 states and 907 transitions. [2022-02-24 00:44:07,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:44:07,376 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 84 [2022-02-24 00:44:07,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:44:07,377 INFO L225 Difference]: With dead ends: 571 [2022-02-24 00:44:07,377 INFO L226 Difference]: Without dead ends: 336 [2022-02-24 00:44:07,378 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:44:07,378 INFO L933 BasicCegarLoop]: 126 mSDtfsCounter, 137 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 480 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 480 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-02-24 00:44:07,379 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [137 Valid, 360 Invalid, 540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 480 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2022-02-24 00:44:07,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336 states. [2022-02-24 00:44:07,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336 to 261. [2022-02-24 00:44:07,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 256 states have (on average 1.6015625) internal successors, (410), 256 states have internal predecessors, (410), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:44:07,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 414 transitions. [2022-02-24 00:44:07,384 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 414 transitions. Word has length 84 [2022-02-24 00:44:07,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:44:07,384 INFO L470 AbstractCegarLoop]: Abstraction has 261 states and 414 transitions. [2022-02-24 00:44:07,384 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:44:07,384 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 414 transitions. [2022-02-24 00:44:07,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-02-24 00:44:07,385 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:44:07,385 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:44:07,385 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-02-24 00:44:07,385 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:44:07,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:44:07,386 INFO L85 PathProgramCache]: Analyzing trace with hash -94890821, now seen corresponding path program 1 times [2022-02-24 00:44:07,386 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:44:07,386 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367155395] [2022-02-24 00:44:07,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:44:07,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:44:07,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:44:07,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:44:07,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:44:07,510 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-02-24 00:44:07,510 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:44:07,510 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1367155395] [2022-02-24 00:44:07,510 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1367155395] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:44:07,510 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:44:07,510 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:44:07,510 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139975955] [2022-02-24 00:44:07,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:44:07,511 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:44:07,511 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:44:07,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:44:07,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:44:07,511 INFO L87 Difference]: Start difference. First operand 261 states and 414 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:44:09,960 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:44:11,984 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:44:14,005 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:44:14,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:44:14,436 INFO L93 Difference]: Finished difference Result 571 states and 900 transitions. [2022-02-24 00:44:14,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:44:14,437 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 85 [2022-02-24 00:44:14,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:44:14,438 INFO L225 Difference]: With dead ends: 571 [2022-02-24 00:44:14,438 INFO L226 Difference]: Without dead ends: 336 [2022-02-24 00:44:14,439 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:44:14,439 INFO L933 BasicCegarLoop]: 126 mSDtfsCounter, 141 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 60 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2022-02-24 00:44:14,440 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [141 Valid, 360 Invalid, 540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 477 Invalid, 3 Unknown, 0 Unchecked, 6.9s Time] [2022-02-24 00:44:14,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336 states. [2022-02-24 00:44:14,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336 to 261. [2022-02-24 00:44:14,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 256 states have (on average 1.5859375) internal successors, (406), 256 states have internal predecessors, (406), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:44:14,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 410 transitions. [2022-02-24 00:44:14,445 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 410 transitions. Word has length 85 [2022-02-24 00:44:14,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:44:14,445 INFO L470 AbstractCegarLoop]: Abstraction has 261 states and 410 transitions. [2022-02-24 00:44:14,445 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:44:14,445 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 410 transitions. [2022-02-24 00:44:14,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-02-24 00:44:14,446 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:44:14,446 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:44:14,446 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-02-24 00:44:14,446 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:44:14,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:44:14,447 INFO L85 PathProgramCache]: Analyzing trace with hash 1898449287, now seen corresponding path program 1 times [2022-02-24 00:44:14,447 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:44:14,447 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320943714] [2022-02-24 00:44:14,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:44:14,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:44:14,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:44:14,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:44:14,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:44:14,529 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-02-24 00:44:14,529 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:44:14,529 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1320943714] [2022-02-24 00:44:14,529 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1320943714] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:44:14,529 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:44:14,529 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:44:14,529 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286402847] [2022-02-24 00:44:14,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:44:14,529 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:44:14,530 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:44:14,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:44:14,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:44:14,530 INFO L87 Difference]: Start difference. First operand 261 states and 410 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:44:15,988 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:44:18,446 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:44:18,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:44:18,890 INFO L93 Difference]: Finished difference Result 571 states and 893 transitions. [2022-02-24 00:44:18,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:44:18,891 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 86 [2022-02-24 00:44:18,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:44:18,892 INFO L225 Difference]: With dead ends: 571 [2022-02-24 00:44:18,892 INFO L226 Difference]: Without dead ends: 336 [2022-02-24 00:44:18,893 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:44:18,893 INFO L933 BasicCegarLoop]: 126 mSDtfsCounter, 139 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 480 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 480 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-02-24 00:44:18,893 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [139 Valid, 360 Invalid, 540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 480 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2022-02-24 00:44:18,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336 states. [2022-02-24 00:44:18,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336 to 261. [2022-02-24 00:44:18,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 256 states have (on average 1.5703125) internal successors, (402), 256 states have internal predecessors, (402), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:44:18,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 406 transitions. [2022-02-24 00:44:18,898 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 406 transitions. Word has length 86 [2022-02-24 00:44:18,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:44:18,899 INFO L470 AbstractCegarLoop]: Abstraction has 261 states and 406 transitions. [2022-02-24 00:44:18,899 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:44:18,899 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 406 transitions. [2022-02-24 00:44:18,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-02-24 00:44:18,899 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:44:18,899 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:44:18,900 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-02-24 00:44:18,900 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:44:18,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:44:18,900 INFO L85 PathProgramCache]: Analyzing trace with hash 1738219902, now seen corresponding path program 1 times [2022-02-24 00:44:18,900 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:44:18,900 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1871365900] [2022-02-24 00:44:18,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:44:18,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:44:18,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:44:18,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:44:18,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:44:18,995 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-02-24 00:44:18,996 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:44:18,996 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1871365900] [2022-02-24 00:44:18,996 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1871365900] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:44:18,996 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:44:18,996 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:44:18,996 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448619825] [2022-02-24 00:44:18,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:44:18,996 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:44:18,996 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:44:18,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:44:18,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:44:18,997 INFO L87 Difference]: Start difference. First operand 261 states and 406 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:44:22,702 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:44:23,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:44:23,608 INFO L93 Difference]: Finished difference Result 499 states and 785 transitions. [2022-02-24 00:44:23,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:44:23,608 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 87 [2022-02-24 00:44:23,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:44:23,609 INFO L225 Difference]: With dead ends: 499 [2022-02-24 00:44:23,609 INFO L226 Difference]: Without dead ends: 264 [2022-02-24 00:44:23,610 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:44:23,610 INFO L933 BasicCegarLoop]: 198 mSDtfsCounter, 11 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 341 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 505 SdHoareTripleChecker+Invalid, 346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 341 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-02-24 00:44:23,610 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 505 Invalid, 346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 341 Invalid, 1 Unknown, 0 Unchecked, 4.6s Time] [2022-02-24 00:44:23,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2022-02-24 00:44:23,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 261. [2022-02-24 00:44:23,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 256 states have (on average 1.56640625) internal successors, (401), 256 states have internal predecessors, (401), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:44:23,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 405 transitions. [2022-02-24 00:44:23,614 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 405 transitions. Word has length 87 [2022-02-24 00:44:23,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:44:23,614 INFO L470 AbstractCegarLoop]: Abstraction has 261 states and 405 transitions. [2022-02-24 00:44:23,615 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:44:23,615 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 405 transitions. [2022-02-24 00:44:23,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-02-24 00:44:23,615 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:44:23,615 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:44:23,615 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-02-24 00:44:23,616 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:44:23,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:44:23,616 INFO L85 PathProgramCache]: Analyzing trace with hash -1337552211, now seen corresponding path program 1 times [2022-02-24 00:44:23,616 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:44:23,616 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6324575] [2022-02-24 00:44:23,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:44:23,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:44:23,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:44:23,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:44:23,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:44:23,707 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-02-24 00:44:23,707 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:44:23,707 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6324575] [2022-02-24 00:44:23,707 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [6324575] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:44:23,707 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:44:23,707 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:44:23,707 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153000924] [2022-02-24 00:44:23,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:44:23,707 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:44:23,708 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:44:23,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:44:23,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:44:23,709 INFO L87 Difference]: Start difference. First operand 261 states and 405 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:44:26,202 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:44:28,226 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:44:28,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:44:28,767 INFO L93 Difference]: Finished difference Result 537 states and 839 transitions. [2022-02-24 00:44:28,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:44:28,767 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 87 [2022-02-24 00:44:28,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:44:28,769 INFO L225 Difference]: With dead ends: 537 [2022-02-24 00:44:28,769 INFO L226 Difference]: Without dead ends: 302 [2022-02-24 00:44:28,769 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:44:28,770 INFO L933 BasicCegarLoop]: 196 mSDtfsCounter, 29 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 392 mSolverCounterSat, 10 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 507 SdHoareTripleChecker+Invalid, 404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 392 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-02-24 00:44:28,770 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [29 Valid, 507 Invalid, 404 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 392 Invalid, 2 Unknown, 0 Unchecked, 5.0s Time] [2022-02-24 00:44:28,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2022-02-24 00:44:28,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 283. [2022-02-24 00:44:28,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 278 states have (on average 1.5611510791366907) internal successors, (434), 278 states have internal predecessors, (434), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:44:28,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 438 transitions. [2022-02-24 00:44:28,775 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 438 transitions. Word has length 87 [2022-02-24 00:44:28,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:44:28,775 INFO L470 AbstractCegarLoop]: Abstraction has 283 states and 438 transitions. [2022-02-24 00:44:28,775 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:44:28,775 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 438 transitions. [2022-02-24 00:44:28,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-02-24 00:44:28,776 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:44:28,776 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 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] [2022-02-24 00:44:28,776 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-02-24 00:44:28,776 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:44:28,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:44:28,777 INFO L85 PathProgramCache]: Analyzing trace with hash 763838455, now seen corresponding path program 1 times [2022-02-24 00:44:28,777 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:44:28,777 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920577604] [2022-02-24 00:44:28,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:44:28,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:44:28,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:44:28,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:44:28,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:44:28,928 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-02-24 00:44:28,928 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:44:28,928 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920577604] [2022-02-24 00:44:28,928 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [920577604] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:44:28,928 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:44:28,928 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:44:28,928 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976197996] [2022-02-24 00:44:28,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:44:28,929 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:44:28,929 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:44:28,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:44:28,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:44:28,929 INFO L87 Difference]: Start difference. First operand 283 states and 438 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:44:30,630 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:44:31,650 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:44:34,131 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 [] [2022-02-24 00:44:34,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:44:34,456 INFO L93 Difference]: Finished difference Result 557 states and 869 transitions. [2022-02-24 00:44:34,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:44:34,456 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 100 [2022-02-24 00:44:34,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:44:34,457 INFO L225 Difference]: With dead ends: 557 [2022-02-24 00:44:34,458 INFO L226 Difference]: Without dead ends: 300 [2022-02-24 00:44:34,458 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:44:34,459 INFO L933 BasicCegarLoop]: 199 mSDtfsCounter, 34 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 389 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 511 SdHoareTripleChecker+Invalid, 398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 389 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-02-24 00:44:34,459 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 511 Invalid, 398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 389 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2022-02-24 00:44:34,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2022-02-24 00:44:34,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 283. [2022-02-24 00:44:34,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 278 states have (on average 1.5575539568345325) internal successors, (433), 278 states have internal predecessors, (433), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:44:34,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 437 transitions. [2022-02-24 00:44:34,465 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 437 transitions. Word has length 100 [2022-02-24 00:44:34,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:44:34,465 INFO L470 AbstractCegarLoop]: Abstraction has 283 states and 437 transitions. [2022-02-24 00:44:34,465 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:44:34,465 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 437 transitions. [2022-02-24 00:44:34,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-02-24 00:44:34,466 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:44:34,466 INFO L514 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1] [2022-02-24 00:44:34,466 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-02-24 00:44:34,466 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:44:34,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:44:34,466 INFO L85 PathProgramCache]: Analyzing trace with hash 1216305223, now seen corresponding path program 1 times [2022-02-24 00:44:34,467 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:44:34,467 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408783477] [2022-02-24 00:44:34,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:44:34,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:44:34,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:44:34,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:44:34,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:44:34,559 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-02-24 00:44:34,560 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:44:34,560 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408783477] [2022-02-24 00:44:34,560 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [408783477] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:44:34,560 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:44:34,560 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:44:34,560 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927262079] [2022-02-24 00:44:34,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:44:34,560 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:44:34,560 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:44:34,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:44:34,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:44:34,561 INFO L87 Difference]: Start difference. First operand 283 states and 437 transitions. Second operand has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:44:37,499 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:44:39,175 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:44:39,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:44:39,555 INFO L93 Difference]: Finished difference Result 568 states and 883 transitions. [2022-02-24 00:44:39,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:44:39,556 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 101 [2022-02-24 00:44:39,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:44:39,557 INFO L225 Difference]: With dead ends: 568 [2022-02-24 00:44:39,557 INFO L226 Difference]: Without dead ends: 311 [2022-02-24 00:44:39,558 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:44:39,558 INFO L933 BasicCegarLoop]: 227 mSDtfsCounter, 19 mSDsluCounter, 341 mSDsCounter, 0 mSdLazyCounter, 392 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 568 SdHoareTripleChecker+Invalid, 402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 392 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-02-24 00:44:39,558 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 568 Invalid, 402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 392 Invalid, 1 Unknown, 0 Unchecked, 5.0s Time] [2022-02-24 00:44:39,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311 states. [2022-02-24 00:44:39,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 299. [2022-02-24 00:44:39,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 299 states, 294 states have (on average 1.5510204081632653) internal successors, (456), 294 states have internal predecessors, (456), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:44:39,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 460 transitions. [2022-02-24 00:44:39,564 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 460 transitions. Word has length 101 [2022-02-24 00:44:39,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:44:39,564 INFO L470 AbstractCegarLoop]: Abstraction has 299 states and 460 transitions. [2022-02-24 00:44:39,564 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:44:39,564 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 460 transitions. [2022-02-24 00:44:39,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-02-24 00:44:39,565 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:44:39,565 INFO L514 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1] [2022-02-24 00:44:39,565 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-02-24 00:44:39,565 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:44:39,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:44:39,565 INFO L85 PathProgramCache]: Analyzing trace with hash -1996120494, now seen corresponding path program 1 times [2022-02-24 00:44:39,565 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:44:39,565 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [721379162] [2022-02-24 00:44:39,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:44:39,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:44:39,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:44:39,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:44:39,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:44:39,649 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-02-24 00:44:39,649 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:44:39,649 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [721379162] [2022-02-24 00:44:39,649 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [721379162] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:44:39,650 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:44:39,650 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:44:39,650 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524363340] [2022-02-24 00:44:39,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:44:39,650 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:44:39,650 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:44:39,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:44:39,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:44:39,651 INFO L87 Difference]: Start difference. First operand 299 states and 460 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:44:43,017 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:44:44,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:44:44,145 INFO L93 Difference]: Finished difference Result 647 states and 995 transitions. [2022-02-24 00:44:44,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:44:44,145 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 102 [2022-02-24 00:44:44,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:44:44,147 INFO L225 Difference]: With dead ends: 647 [2022-02-24 00:44:44,147 INFO L226 Difference]: Without dead ends: 374 [2022-02-24 00:44:44,147 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:44:44,148 INFO L933 BasicCegarLoop]: 126 mSDtfsCounter, 141 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 479 mSolverCounterSat, 60 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 479 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-02-24 00:44:44,148 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [141 Valid, 360 Invalid, 540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 479 Invalid, 1 Unknown, 0 Unchecked, 4.5s Time] [2022-02-24 00:44:44,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 374 states. [2022-02-24 00:44:44,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 374 to 299. [2022-02-24 00:44:44,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 299 states, 294 states have (on average 1.534013605442177) internal successors, (451), 294 states have internal predecessors, (451), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:44:44,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 455 transitions. [2022-02-24 00:44:44,153 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 455 transitions. Word has length 102 [2022-02-24 00:44:44,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:44:44,154 INFO L470 AbstractCegarLoop]: Abstraction has 299 states and 455 transitions. [2022-02-24 00:44:44,154 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:44:44,154 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 455 transitions. [2022-02-24 00:44:44,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-02-24 00:44:44,154 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:44:44,155 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1] [2022-02-24 00:44:44,155 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-02-24 00:44:44,155 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:44:44,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:44:44,155 INFO L85 PathProgramCache]: Analyzing trace with hash 1450991295, now seen corresponding path program 1 times [2022-02-24 00:44:44,155 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:44:44,155 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214847749] [2022-02-24 00:44:44,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:44:44,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:44:44,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:44:44,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:44:44,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:44:44,251 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-02-24 00:44:44,251 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:44:44,251 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214847749] [2022-02-24 00:44:44,251 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1214847749] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:44:44,251 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:44:44,251 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:44:44,252 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617833201] [2022-02-24 00:44:44,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:44:44,252 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:44:44,253 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:44:44,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:44:44,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:44:44,253 INFO L87 Difference]: Start difference. First operand 299 states and 455 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) [2022-02-24 00:44:45,430 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:44:47,131 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:44:48,861 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:44:50,544 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:44:50,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:44:50,949 INFO L93 Difference]: Finished difference Result 637 states and 972 transitions. [2022-02-24 00:44:50,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:44:50,949 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 105 [2022-02-24 00:44:50,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:44:50,950 INFO L225 Difference]: With dead ends: 637 [2022-02-24 00:44:50,950 INFO L226 Difference]: Without dead ends: 364 [2022-02-24 00:44:50,951 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:44:50,951 INFO L933 BasicCegarLoop]: 133 mSDtfsCounter, 130 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 466 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 374 SdHoareTripleChecker+Invalid, 520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 466 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2022-02-24 00:44:50,952 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [130 Valid, 374 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 466 Invalid, 0 Unknown, 0 Unchecked, 6.7s Time] [2022-02-24 00:44:50,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 364 states. [2022-02-24 00:44:50,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 364 to 299. [2022-02-24 00:44:50,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 299 states, 294 states have (on average 1.5170068027210883) internal successors, (446), 294 states have internal predecessors, (446), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:44:50,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 450 transitions. [2022-02-24 00:44:50,957 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 450 transitions. Word has length 105 [2022-02-24 00:44:50,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:44:50,957 INFO L470 AbstractCegarLoop]: Abstraction has 299 states and 450 transitions. [2022-02-24 00:44:50,957 INFO L471 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) [2022-02-24 00:44:50,957 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 450 transitions. [2022-02-24 00:44:50,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-24 00:44:50,958 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:44:50,958 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:44:50,958 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-02-24 00:44:50,958 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:44:50,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:44:50,958 INFO L85 PathProgramCache]: Analyzing trace with hash 172926318, now seen corresponding path program 1 times [2022-02-24 00:44:50,958 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:44:50,958 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669550204] [2022-02-24 00:44:50,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:44:50,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:44:51,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:44:51,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:44:51,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:44:51,062 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 77 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-02-24 00:44:51,062 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:44:51,062 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [669550204] [2022-02-24 00:44:51,062 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [669550204] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:44:51,062 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:44:51,062 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:44:51,062 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102892790] [2022-02-24 00:44:51,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:44:51,063 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:44:51,063 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:44:51,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:44:51,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:44:51,063 INFO L87 Difference]: Start difference. First operand 299 states and 450 transitions. Second operand has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:44:52,436 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:44:54,452 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:44:55,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:44:55,515 INFO L93 Difference]: Finished difference Result 651 states and 985 transitions. [2022-02-24 00:44:55,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:44:55,516 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 109 [2022-02-24 00:44:55,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:44:55,517 INFO L225 Difference]: With dead ends: 651 [2022-02-24 00:44:55,517 INFO L226 Difference]: Without dead ends: 378 [2022-02-24 00:44:55,517 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:44:55,518 INFO L933 BasicCegarLoop]: 194 mSDtfsCounter, 72 mSDsluCounter, 309 mSDsCounter, 0 mSdLazyCounter, 487 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 503 SdHoareTripleChecker+Invalid, 498 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 487 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-02-24 00:44:55,518 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [72 Valid, 503 Invalid, 498 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 487 Invalid, 1 Unknown, 0 Unchecked, 4.4s Time] [2022-02-24 00:44:55,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 378 states. [2022-02-24 00:44:55,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 378 to 327. [2022-02-24 00:44:55,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 327 states, 322 states have (on average 1.5124223602484472) internal successors, (487), 322 states have internal predecessors, (487), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:44:55,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 491 transitions. [2022-02-24 00:44:55,523 INFO L78 Accepts]: Start accepts. Automaton has 327 states and 491 transitions. Word has length 109 [2022-02-24 00:44:55,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:44:55,523 INFO L470 AbstractCegarLoop]: Abstraction has 327 states and 491 transitions. [2022-02-24 00:44:55,524 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:44:55,524 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 491 transitions. [2022-02-24 00:44:55,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-24 00:44:55,524 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:44:55,524 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:44:55,525 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-02-24 00:44:55,525 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:44:55,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:44:55,525 INFO L85 PathProgramCache]: Analyzing trace with hash -993770001, now seen corresponding path program 1 times [2022-02-24 00:44:55,525 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:44:55,525 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412667793] [2022-02-24 00:44:55,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:44:55,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:44:55,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:44:55,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:44:55,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:44:55,614 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 77 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-02-24 00:44:55,614 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:44:55,614 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412667793] [2022-02-24 00:44:55,614 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1412667793] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:44:55,614 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:44:55,614 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:44:55,614 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271343379] [2022-02-24 00:44:55,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:44:55,615 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:44:55,615 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:44:55,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:44:55,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:44:55,615 INFO L87 Difference]: Start difference. First operand 327 states and 491 transitions. Second operand has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:44:58,238 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:45:00,140 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:45:02,167 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:45:02,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:45:02,584 INFO L93 Difference]: Finished difference Result 733 states and 1108 transitions. [2022-02-24 00:45:02,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:45:02,585 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 109 [2022-02-24 00:45:02,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:45:02,586 INFO L225 Difference]: With dead ends: 733 [2022-02-24 00:45:02,586 INFO L226 Difference]: Without dead ends: 432 [2022-02-24 00:45:02,587 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:45:02,589 INFO L933 BasicCegarLoop]: 133 mSDtfsCounter, 118 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 465 mSolverCounterSat, 51 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 374 SdHoareTripleChecker+Invalid, 518 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 465 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2022-02-24 00:45:02,589 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [118 Valid, 374 Invalid, 518 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 465 Invalid, 2 Unknown, 0 Unchecked, 6.9s Time] [2022-02-24 00:45:02,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 432 states. [2022-02-24 00:45:02,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 432 to 325. [2022-02-24 00:45:02,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 325 states, 320 states have (on average 1.509375) internal successors, (483), 320 states have internal predecessors, (483), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:45:02,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 487 transitions. [2022-02-24 00:45:02,599 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 487 transitions. Word has length 109 [2022-02-24 00:45:02,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:45:02,599 INFO L470 AbstractCegarLoop]: Abstraction has 325 states and 487 transitions. [2022-02-24 00:45:02,599 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:45:02,599 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 487 transitions. [2022-02-24 00:45:02,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-02-24 00:45:02,600 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:45:02,600 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:45:02,600 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-02-24 00:45:02,600 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:45:02,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:45:02,601 INFO L85 PathProgramCache]: Analyzing trace with hash 1574021277, now seen corresponding path program 1 times [2022-02-24 00:45:02,601 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:45:02,601 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427753084] [2022-02-24 00:45:02,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:45:02,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:45:02,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:45:02,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:45:02,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:45:02,706 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 78 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-02-24 00:45:02,706 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:45:02,706 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427753084] [2022-02-24 00:45:02,706 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1427753084] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:45:02,707 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:45:02,707 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:45:02,707 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621314560] [2022-02-24 00:45:02,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:45:02,707 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:45:02,707 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:45:02,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:45:02,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:45:02,708 INFO L87 Difference]: Start difference. First operand 325 states and 487 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) [2022-02-24 00:45:07,295 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:45:07,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:45:07,700 INFO L93 Difference]: Finished difference Result 689 states and 1036 transitions. [2022-02-24 00:45:07,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:45:07,701 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 110 [2022-02-24 00:45:07,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:45:07,716 INFO L225 Difference]: With dead ends: 689 [2022-02-24 00:45:07,716 INFO L226 Difference]: Without dead ends: 390 [2022-02-24 00:45:07,717 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:45:07,726 INFO L933 BasicCegarLoop]: 151 mSDtfsCounter, 117 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 49 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 410 SdHoareTripleChecker+Invalid, 533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-02-24 00:45:07,727 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [117 Valid, 410 Invalid, 533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 483 Invalid, 1 Unknown, 0 Unchecked, 5.0s Time] [2022-02-24 00:45:07,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390 states. [2022-02-24 00:45:07,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 390 to 325. [2022-02-24 00:45:07,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 325 states, 320 states have (on average 1.5) internal successors, (480), 320 states have internal predecessors, (480), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:45:07,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 484 transitions. [2022-02-24 00:45:07,734 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 484 transitions. Word has length 110 [2022-02-24 00:45:07,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:45:07,734 INFO L470 AbstractCegarLoop]: Abstraction has 325 states and 484 transitions. [2022-02-24 00:45:07,734 INFO L471 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) [2022-02-24 00:45:07,734 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 484 transitions. [2022-02-24 00:45:07,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-02-24 00:45:07,735 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:45:07,735 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:45:07,735 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-02-24 00:45:07,735 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:45:07,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:45:07,736 INFO L85 PathProgramCache]: Analyzing trace with hash -2007236141, now seen corresponding path program 1 times [2022-02-24 00:45:07,736 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:45:07,736 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497655449] [2022-02-24 00:45:07,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:45:07,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:45:07,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:45:07,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:45:07,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:45:07,833 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 79 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-02-24 00:45:07,834 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:45:07,834 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1497655449] [2022-02-24 00:45:07,834 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1497655449] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:45:07,834 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:45:07,834 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:45:07,834 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612919028] [2022-02-24 00:45:07,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:45:07,834 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:45:07,834 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:45:07,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:45:07,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:45:07,835 INFO L87 Difference]: Start difference. First operand 325 states and 484 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) [2022-02-24 00:45:09,856 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:45:12,553 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:45:12,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:45:12,926 INFO L93 Difference]: Finished difference Result 698 states and 1044 transitions. [2022-02-24 00:45:12,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:45:12,927 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 110 [2022-02-24 00:45:12,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:45:12,945 INFO L225 Difference]: With dead ends: 698 [2022-02-24 00:45:12,945 INFO L226 Difference]: Without dead ends: 399 [2022-02-24 00:45:12,946 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:45:12,946 INFO L933 BasicCegarLoop]: 197 mSDtfsCounter, 62 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 470 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 509 SdHoareTripleChecker+Invalid, 479 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 470 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-02-24 00:45:12,947 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [62 Valid, 509 Invalid, 479 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 470 Invalid, 1 Unknown, 0 Unchecked, 5.1s Time] [2022-02-24 00:45:12,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 399 states. [2022-02-24 00:45:12,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 399 to 359. [2022-02-24 00:45:12,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 359 states, 354 states have (on average 1.4943502824858756) internal successors, (529), 354 states have internal predecessors, (529), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:45:12,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 359 states and 533 transitions. [2022-02-24 00:45:12,952 INFO L78 Accepts]: Start accepts. Automaton has 359 states and 533 transitions. Word has length 110 [2022-02-24 00:45:12,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:45:12,953 INFO L470 AbstractCegarLoop]: Abstraction has 359 states and 533 transitions. [2022-02-24 00:45:12,953 INFO L471 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) [2022-02-24 00:45:12,953 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states and 533 transitions. [2022-02-24 00:45:12,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-02-24 00:45:12,954 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:45:12,954 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:45:12,954 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-02-24 00:45:12,954 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:45:12,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:45:12,954 INFO L85 PathProgramCache]: Analyzing trace with hash 479883634, now seen corresponding path program 1 times [2022-02-24 00:45:12,954 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:45:12,954 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141565519] [2022-02-24 00:45:12,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:45:12,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:45:13,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:45:13,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:45:13,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:45:13,052 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-02-24 00:45:13,053 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:45:13,053 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1141565519] [2022-02-24 00:45:13,053 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1141565519] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:45:13,053 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:45:13,053 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:45:13,053 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516926515] [2022-02-24 00:45:13,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:45:13,053 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:45:13,053 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:45:13,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:45:13,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:45:13,054 INFO L87 Difference]: Start difference. First operand 359 states and 533 transitions. Second operand has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:45:15,465 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:45:17,488 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:45:19,518 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:45:19,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:45:19,886 INFO L93 Difference]: Finished difference Result 730 states and 1091 transitions. [2022-02-24 00:45:19,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:45:19,887 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 110 [2022-02-24 00:45:19,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:45:19,888 INFO L225 Difference]: With dead ends: 730 [2022-02-24 00:45:19,888 INFO L226 Difference]: Without dead ends: 397 [2022-02-24 00:45:19,888 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:45:19,889 INFO L933 BasicCegarLoop]: 238 mSDtfsCounter, 28 mSDsluCounter, 351 mSDsCounter, 0 mSdLazyCounter, 432 mSolverCounterSat, 6 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 589 SdHoareTripleChecker+Invalid, 441 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 432 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2022-02-24 00:45:19,889 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 589 Invalid, 441 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 432 Invalid, 3 Unknown, 0 Unchecked, 6.8s Time] [2022-02-24 00:45:19,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 397 states. [2022-02-24 00:45:19,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 397 to 383. [2022-02-24 00:45:19,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 383 states, 378 states have (on average 1.492063492063492) internal successors, (564), 378 states have internal predecessors, (564), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:45:19,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 568 transitions. [2022-02-24 00:45:19,895 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 568 transitions. Word has length 110 [2022-02-24 00:45:19,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:45:19,898 INFO L470 AbstractCegarLoop]: Abstraction has 383 states and 568 transitions. [2022-02-24 00:45:19,898 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:45:19,898 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 568 transitions. [2022-02-24 00:45:19,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-02-24 00:45:19,899 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:45:19,899 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:45:19,899 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-02-24 00:45:19,899 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:45:19,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:45:19,900 INFO L85 PathProgramCache]: Analyzing trace with hash 1551809488, now seen corresponding path program 1 times [2022-02-24 00:45:19,900 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:45:19,900 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303698151] [2022-02-24 00:45:19,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:45:19,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:45:19,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:45:19,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:45:19,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:45:19,993 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-02-24 00:45:19,993 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:45:19,993 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303698151] [2022-02-24 00:45:19,993 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1303698151] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:45:19,993 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:45:19,993 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:45:19,993 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30529819] [2022-02-24 00:45:19,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:45:19,994 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:45:19,994 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:45:19,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:45:19,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:45:19,994 INFO L87 Difference]: Start difference. First operand 383 states and 568 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) [2022-02-24 00:45:21,435 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:45:23,412 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:45:25,472 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:45:25,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:45:25,882 INFO L93 Difference]: Finished difference Result 845 states and 1260 transitions. [2022-02-24 00:45:25,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:45:25,883 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 121 [2022-02-24 00:45:25,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:45:25,885 INFO L225 Difference]: With dead ends: 845 [2022-02-24 00:45:25,885 INFO L226 Difference]: Without dead ends: 488 [2022-02-24 00:45:25,886 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:45:25,886 INFO L933 BasicCegarLoop]: 143 mSDtfsCounter, 106 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 394 SdHoareTripleChecker+Invalid, 526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-02-24 00:45:25,886 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [106 Valid, 394 Invalid, 526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 477 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time] [2022-02-24 00:45:25,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 488 states. [2022-02-24 00:45:25,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 488 to 420. [2022-02-24 00:45:25,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 420 states, 415 states have (on average 1.4939759036144578) internal successors, (620), 415 states have internal predecessors, (620), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:45:25,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 420 states and 624 transitions. [2022-02-24 00:45:25,894 INFO L78 Accepts]: Start accepts. Automaton has 420 states and 624 transitions. Word has length 121 [2022-02-24 00:45:25,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:45:25,894 INFO L470 AbstractCegarLoop]: Abstraction has 420 states and 624 transitions. [2022-02-24 00:45:25,894 INFO L471 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) [2022-02-24 00:45:25,894 INFO L276 IsEmpty]: Start isEmpty. Operand 420 states and 624 transitions. [2022-02-24 00:45:25,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-02-24 00:45:25,896 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:45:25,896 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:45:25,896 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-02-24 00:45:25,896 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:45:25,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:45:25,897 INFO L85 PathProgramCache]: Analyzing trace with hash 1325942260, now seen corresponding path program 1 times [2022-02-24 00:45:25,897 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:45:25,897 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789437704] [2022-02-24 00:45:25,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:45:25,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:45:25,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:45:25,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:45:25,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:45:25,985 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-02-24 00:45:25,985 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:45:25,985 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1789437704] [2022-02-24 00:45:25,985 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1789437704] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:45:25,985 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:45:25,985 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:45:25,986 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750563506] [2022-02-24 00:45:25,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:45:25,986 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:45:25,986 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:45:25,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:45:25,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:45:25,986 INFO L87 Difference]: Start difference. First operand 420 states and 624 transitions. Second operand has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:45:27,235 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:45:29,255 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:45:31,281 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:45:32,792 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:45:33,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:45:33,238 INFO L93 Difference]: Finished difference Result 879 states and 1310 transitions. [2022-02-24 00:45:33,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:45:33,239 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 122 [2022-02-24 00:45:33,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:45:33,240 INFO L225 Difference]: With dead ends: 879 [2022-02-24 00:45:33,240 INFO L226 Difference]: Without dead ends: 485 [2022-02-24 00:45:33,241 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:45:33,241 INFO L933 BasicCegarLoop]: 151 mSDtfsCounter, 105 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 49 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 410 SdHoareTripleChecker+Invalid, 533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2022-02-24 00:45:33,241 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [105 Valid, 410 Invalid, 533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 482 Invalid, 2 Unknown, 0 Unchecked, 7.2s Time] [2022-02-24 00:45:33,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 485 states. [2022-02-24 00:45:33,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 485 to 420. [2022-02-24 00:45:33,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 420 states, 415 states have (on average 1.489156626506024) internal successors, (618), 415 states have internal predecessors, (618), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:45:33,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 420 states and 622 transitions. [2022-02-24 00:45:33,254 INFO L78 Accepts]: Start accepts. Automaton has 420 states and 622 transitions. Word has length 122 [2022-02-24 00:45:33,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:45:33,254 INFO L470 AbstractCegarLoop]: Abstraction has 420 states and 622 transitions. [2022-02-24 00:45:33,254 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:45:33,255 INFO L276 IsEmpty]: Start isEmpty. Operand 420 states and 622 transitions. [2022-02-24 00:45:33,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-02-24 00:45:33,255 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:45:33,256 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 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] [2022-02-24 00:45:33,256 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-02-24 00:45:33,256 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:45:33,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:45:33,256 INFO L85 PathProgramCache]: Analyzing trace with hash 606233963, now seen corresponding path program 1 times [2022-02-24 00:45:33,256 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:45:33,256 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616631273] [2022-02-24 00:45:33,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:45:33,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:45:33,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:45:33,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:45:33,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:45:33,400 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-02-24 00:45:33,400 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:45:33,400 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1616631273] [2022-02-24 00:45:33,400 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1616631273] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:45:33,400 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:45:33,400 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:45:33,401 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384333846] [2022-02-24 00:45:33,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:45:33,401 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:45:33,401 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:45:33,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:45:33,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:45:33,401 INFO L87 Difference]: Start difference. First operand 420 states and 622 transitions. Second operand has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 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) [2022-02-24 00:45:35,613 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:45:37,633 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:45:38,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:45:38,002 INFO L93 Difference]: Finished difference Result 850 states and 1264 transitions. [2022-02-24 00:45:38,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:45:38,002 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 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 123 [2022-02-24 00:45:38,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:45:38,003 INFO L225 Difference]: With dead ends: 850 [2022-02-24 00:45:38,003 INFO L226 Difference]: Without dead ends: 456 [2022-02-24 00:45:38,004 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:45:38,004 INFO L933 BasicCegarLoop]: 200 mSDtfsCounter, 74 mSDsluCounter, 313 mSDsCounter, 0 mSdLazyCounter, 465 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 513 SdHoareTripleChecker+Invalid, 473 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 465 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-02-24 00:45:38,005 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [74 Valid, 513 Invalid, 473 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 465 Invalid, 1 Unknown, 0 Unchecked, 4.6s Time] [2022-02-24 00:45:38,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 456 states. [2022-02-24 00:45:38,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 456 to 420. [2022-02-24 00:45:38,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 420 states, 415 states have (on average 1.4867469879518072) internal successors, (617), 415 states have internal predecessors, (617), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:45:38,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 420 states and 621 transitions. [2022-02-24 00:45:38,011 INFO L78 Accepts]: Start accepts. Automaton has 420 states and 621 transitions. Word has length 123 [2022-02-24 00:45:38,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:45:38,011 INFO L470 AbstractCegarLoop]: Abstraction has 420 states and 621 transitions. [2022-02-24 00:45:38,011 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 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) [2022-02-24 00:45:38,011 INFO L276 IsEmpty]: Start isEmpty. Operand 420 states and 621 transitions. [2022-02-24 00:45:38,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-02-24 00:45:38,012 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:45:38,012 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 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] [2022-02-24 00:45:38,013 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-02-24 00:45:38,013 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:45:38,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:45:38,013 INFO L85 PathProgramCache]: Analyzing trace with hash 1473286188, now seen corresponding path program 1 times [2022-02-24 00:45:38,013 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:45:38,013 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51762215] [2022-02-24 00:45:38,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:45:38,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:45:38,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:45:38,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:45:38,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:45:38,098 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-02-24 00:45:38,098 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:45:38,098 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51762215] [2022-02-24 00:45:38,098 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [51762215] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:45:38,098 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:45:38,098 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:45:38,098 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693062052] [2022-02-24 00:45:38,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:45:38,099 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:45:38,099 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:45:38,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:45:38,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:45:38,099 INFO L87 Difference]: Start difference. First operand 420 states and 621 transitions. Second operand has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 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) [2022-02-24 00:45:39,820 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:45:41,845 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:45:43,872 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:45:45,899 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:45:46,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:45:46,341 INFO L93 Difference]: Finished difference Result 877 states and 1302 transitions. [2022-02-24 00:45:46,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:45:46,341 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 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 123 [2022-02-24 00:45:46,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:45:46,343 INFO L225 Difference]: With dead ends: 877 [2022-02-24 00:45:46,343 INFO L226 Difference]: Without dead ends: 483 [2022-02-24 00:45:46,344 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:45:46,344 INFO L933 BasicCegarLoop]: 128 mSDtfsCounter, 126 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 453 mSolverCounterSat, 52 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 364 SdHoareTripleChecker+Invalid, 508 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 453 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2022-02-24 00:45:46,344 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [126 Valid, 364 Invalid, 508 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 453 Invalid, 3 Unknown, 0 Unchecked, 8.2s Time] [2022-02-24 00:45:46,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2022-02-24 00:45:46,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 420. [2022-02-24 00:45:46,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 420 states, 415 states have (on average 1.472289156626506) internal successors, (611), 415 states have internal predecessors, (611), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:45:46,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 420 states and 615 transitions. [2022-02-24 00:45:46,350 INFO L78 Accepts]: Start accepts. Automaton has 420 states and 615 transitions. Word has length 123 [2022-02-24 00:45:46,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:45:46,351 INFO L470 AbstractCegarLoop]: Abstraction has 420 states and 615 transitions. [2022-02-24 00:45:46,351 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 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) [2022-02-24 00:45:46,351 INFO L276 IsEmpty]: Start isEmpty. Operand 420 states and 615 transitions. [2022-02-24 00:45:46,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-02-24 00:45:46,353 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:45:46,353 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:45:46,353 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-02-24 00:45:46,353 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:45:46,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:45:46,353 INFO L85 PathProgramCache]: Analyzing trace with hash -93372547, now seen corresponding path program 1 times [2022-02-24 00:45:46,353 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:45:46,353 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127123522] [2022-02-24 00:45:46,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:45:46,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:45:46,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:45:46,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:45:46,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:45:46,447 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-02-24 00:45:46,447 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:45:46,447 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1127123522] [2022-02-24 00:45:46,447 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1127123522] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:45:46,447 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:45:46,447 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:45:46,447 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774461342] [2022-02-24 00:45:46,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:45:46,447 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:45:46,447 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:45:46,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:45:46,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:45:46,448 INFO L87 Difference]: Start difference. First operand 420 states and 615 transitions. Second operand has 5 states, 5 states have (on average 23.2) internal successors, (116), 4 states have internal predecessors, (116), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:45:48,028 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:45:49,562 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:45:51,584 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:45:53,610 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:45:54,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:45:54,017 INFO L93 Difference]: Finished difference Result 919 states and 1351 transitions. [2022-02-24 00:45:54,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:45:54,018 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 4 states have internal predecessors, (116), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 130 [2022-02-24 00:45:54,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:45:54,019 INFO L225 Difference]: With dead ends: 919 [2022-02-24 00:45:54,019 INFO L226 Difference]: Without dead ends: 525 [2022-02-24 00:45:54,020 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:45:54,020 INFO L933 BasicCegarLoop]: 129 mSDtfsCounter, 98 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 461 mSolverCounterSat, 53 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 367 SdHoareTripleChecker+Invalid, 516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 461 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2022-02-24 00:45:54,020 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [98 Valid, 367 Invalid, 516 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 461 Invalid, 2 Unknown, 0 Unchecked, 7.5s Time] [2022-02-24 00:45:54,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 525 states. [2022-02-24 00:45:54,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 525 to 463. [2022-02-24 00:45:54,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 463 states, 458 states have (on average 1.4737991266375545) internal successors, (675), 458 states have internal predecessors, (675), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:45:54,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 463 states to 463 states and 679 transitions. [2022-02-24 00:45:54,036 INFO L78 Accepts]: Start accepts. Automaton has 463 states and 679 transitions. Word has length 130 [2022-02-24 00:45:54,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:45:54,037 INFO L470 AbstractCegarLoop]: Abstraction has 463 states and 679 transitions. [2022-02-24 00:45:54,037 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 4 states have internal predecessors, (116), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:45:54,037 INFO L276 IsEmpty]: Start isEmpty. Operand 463 states and 679 transitions. [2022-02-24 00:45:54,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-02-24 00:45:54,038 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:45:54,038 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:45:54,038 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-02-24 00:45:54,038 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:45:54,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:45:54,038 INFO L85 PathProgramCache]: Analyzing trace with hash 1531954608, now seen corresponding path program 1 times [2022-02-24 00:45:54,039 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:45:54,039 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638427050] [2022-02-24 00:45:54,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:45:54,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:45:54,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:45:54,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:45:54,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:45:54,152 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 122 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-02-24 00:45:54,152 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:45:54,152 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638427050] [2022-02-24 00:45:54,152 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1638427050] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:45:54,152 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:45:54,152 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:45:54,152 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296815819] [2022-02-24 00:45:54,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:45:54,153 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:45:54,153 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:45:54,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:45:54,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:45:54,154 INFO L87 Difference]: Start difference. First operand 463 states and 679 transitions. Second operand has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:45:55,613 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:45:57,392 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:45:59,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:45:59,587 INFO L93 Difference]: Finished difference Result 965 states and 1420 transitions. [2022-02-24 00:45:59,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:45:59,587 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 131 [2022-02-24 00:45:59,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:45:59,589 INFO L225 Difference]: With dead ends: 965 [2022-02-24 00:45:59,589 INFO L226 Difference]: Without dead ends: 528 [2022-02-24 00:45:59,590 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:45:59,590 INFO L933 BasicCegarLoop]: 136 mSDtfsCounter, 118 mSDsluCounter, 244 mSDsCounter, 0 mSdLazyCounter, 471 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 522 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 471 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-02-24 00:45:59,590 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [118 Valid, 380 Invalid, 522 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 471 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2022-02-24 00:45:59,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 528 states. [2022-02-24 00:45:59,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 528 to 463. [2022-02-24 00:45:59,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 463 states, 458 states have (on average 1.4585152838427948) internal successors, (668), 458 states have internal predecessors, (668), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:45:59,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 463 states to 463 states and 672 transitions. [2022-02-24 00:45:59,597 INFO L78 Accepts]: Start accepts. Automaton has 463 states and 672 transitions. Word has length 131 [2022-02-24 00:45:59,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:45:59,597 INFO L470 AbstractCegarLoop]: Abstraction has 463 states and 672 transitions. [2022-02-24 00:45:59,597 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:45:59,597 INFO L276 IsEmpty]: Start isEmpty. Operand 463 states and 672 transitions. [2022-02-24 00:45:59,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-02-24 00:45:59,598 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:45:59,598 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:45:59,598 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-02-24 00:45:59,598 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:45:59,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:45:59,599 INFO L85 PathProgramCache]: Analyzing trace with hash -419238951, now seen corresponding path program 1 times [2022-02-24 00:45:59,599 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:45:59,599 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553369697] [2022-02-24 00:45:59,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:45:59,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:45:59,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:45:59,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:45:59,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:45:59,686 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-02-24 00:45:59,686 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:45:59,686 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553369697] [2022-02-24 00:45:59,686 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1553369697] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:45:59,686 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:45:59,686 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:45:59,686 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290869247] [2022-02-24 00:45:59,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:45:59,687 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:45:59,687 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:45:59,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:45:59,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:45:59,687 INFO L87 Difference]: Start difference. First operand 463 states and 672 transitions. Second operand has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:46:01,418 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:46:03,440 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:46:06,013 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:46:06,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:46:06,431 INFO L93 Difference]: Finished difference Result 965 states and 1406 transitions. [2022-02-24 00:46:06,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:46:06,431 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 131 [2022-02-24 00:46:06,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:46:06,433 INFO L225 Difference]: With dead ends: 965 [2022-02-24 00:46:06,433 INFO L226 Difference]: Without dead ends: 526 [2022-02-24 00:46:06,434 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:46:06,434 INFO L933 BasicCegarLoop]: 136 mSDtfsCounter, 99 mSDsluCounter, 244 mSDsCounter, 0 mSdLazyCounter, 467 mSolverCounterSat, 51 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 467 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2022-02-24 00:46:06,434 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [99 Valid, 380 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 467 Invalid, 2 Unknown, 0 Unchecked, 6.7s Time] [2022-02-24 00:46:06,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 526 states. [2022-02-24 00:46:06,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 526 to 465. [2022-02-24 00:46:06,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 465 states, 460 states have (on average 1.458695652173913) internal successors, (671), 460 states have internal predecessors, (671), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:46:06,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 465 states to 465 states and 675 transitions. [2022-02-24 00:46:06,441 INFO L78 Accepts]: Start accepts. Automaton has 465 states and 675 transitions. Word has length 131 [2022-02-24 00:46:06,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:46:06,441 INFO L470 AbstractCegarLoop]: Abstraction has 465 states and 675 transitions. [2022-02-24 00:46:06,441 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:46:06,442 INFO L276 IsEmpty]: Start isEmpty. Operand 465 states and 675 transitions. [2022-02-24 00:46:06,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-02-24 00:46:06,442 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:46:06,442 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:46:06,442 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-02-24 00:46:06,443 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:46:06,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:46:06,443 INFO L85 PathProgramCache]: Analyzing trace with hash 46899057, now seen corresponding path program 1 times [2022-02-24 00:46:06,443 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:46:06,443 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1898492464] [2022-02-24 00:46:06,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:46:06,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:46:06,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:46:06,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:46:06,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:46:06,558 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2022-02-24 00:46:06,558 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:46:06,558 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1898492464] [2022-02-24 00:46:06,558 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1898492464] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:46:06,558 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:46:06,558 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-24 00:46:06,558 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178225885] [2022-02-24 00:46:06,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:46:06,558 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-24 00:46:06,559 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:46:06,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-24 00:46:06,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 00:46:06,559 INFO L87 Difference]: Start difference. First operand 465 states and 675 transitions. Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 3 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:46:07,590 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 [] [2022-02-24 00:46:09,607 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:46:11,635 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:46:11,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:46:11,945 INFO L93 Difference]: Finished difference Result 1293 states and 1894 transitions. [2022-02-24 00:46:11,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-24 00:46:11,946 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 3 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 131 [2022-02-24 00:46:11,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:46:11,948 INFO L225 Difference]: With dead ends: 1293 [2022-02-24 00:46:11,948 INFO L226 Difference]: Without dead ends: 854 [2022-02-24 00:46:11,949 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 00:46:11,949 INFO L933 BasicCegarLoop]: 247 mSDtfsCounter, 134 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 284 mSolverCounterSat, 9 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 441 SdHoareTripleChecker+Invalid, 295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 284 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-02-24 00:46:11,949 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [134 Valid, 441 Invalid, 295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 284 Invalid, 2 Unknown, 0 Unchecked, 5.4s Time] [2022-02-24 00:46:11,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 854 states. [2022-02-24 00:46:11,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 854 to 854. [2022-02-24 00:46:11,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 854 states, 849 states have (on average 1.4570082449941106) internal successors, (1237), 849 states have internal predecessors, (1237), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:46:11,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 854 states to 854 states and 1241 transitions. [2022-02-24 00:46:11,979 INFO L78 Accepts]: Start accepts. Automaton has 854 states and 1241 transitions. Word has length 131 [2022-02-24 00:46:11,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:46:11,979 INFO L470 AbstractCegarLoop]: Abstraction has 854 states and 1241 transitions. [2022-02-24 00:46:11,979 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 3 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:46:11,979 INFO L276 IsEmpty]: Start isEmpty. Operand 854 states and 1241 transitions. [2022-02-24 00:46:11,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-02-24 00:46:11,996 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:46:11,996 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:46:11,997 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-02-24 00:46:11,997 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:46:11,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:46:11,997 INFO L85 PathProgramCache]: Analyzing trace with hash -1162343182, now seen corresponding path program 1 times [2022-02-24 00:46:11,997 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:46:11,997 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104862080] [2022-02-24 00:46:11,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:46:11,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:46:12,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:46:12,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:46:12,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:46:12,077 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2022-02-24 00:46:12,077 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:46:12,077 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104862080] [2022-02-24 00:46:12,077 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2104862080] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:46:12,078 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:46:12,078 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-24 00:46:12,078 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648932859] [2022-02-24 00:46:12,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:46:12,078 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-24 00:46:12,078 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:46:12,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-24 00:46:12,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 00:46:12,079 INFO L87 Difference]: Start difference. First operand 854 states and 1241 transitions. Second operand has 4 states, 4 states have (on average 22.25) internal successors, (89), 3 states have internal predecessors, (89), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:46:13,687 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:46:15,004 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:46:16,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:46:16,152 INFO L93 Difference]: Finished difference Result 1709 states and 2489 transitions. [2022-02-24 00:46:16,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-24 00:46:16,153 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.25) internal successors, (89), 3 states have internal predecessors, (89), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 131 [2022-02-24 00:46:16,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:46:16,155 INFO L225 Difference]: With dead ends: 1709 [2022-02-24 00:46:16,155 INFO L226 Difference]: Without dead ends: 881 [2022-02-24 00:46:16,156 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 00:46:16,156 INFO L933 BasicCegarLoop]: 223 mSDtfsCounter, 15 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 417 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-02-24 00:46:16,156 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 417 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-02-24 00:46:16,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 881 states. [2022-02-24 00:46:16,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 881 to 881. [2022-02-24 00:46:16,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 881 states, 876 states have (on average 1.452054794520548) internal successors, (1272), 876 states have internal predecessors, (1272), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:46:16,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 881 states to 881 states and 1276 transitions. [2022-02-24 00:46:16,167 INFO L78 Accepts]: Start accepts. Automaton has 881 states and 1276 transitions. Word has length 131 [2022-02-24 00:46:16,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:46:16,168 INFO L470 AbstractCegarLoop]: Abstraction has 881 states and 1276 transitions. [2022-02-24 00:46:16,168 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.25) internal successors, (89), 3 states have internal predecessors, (89), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:46:16,168 INFO L276 IsEmpty]: Start isEmpty. Operand 881 states and 1276 transitions. [2022-02-24 00:46:16,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-02-24 00:46:16,169 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:46:16,169 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:46:16,169 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-02-24 00:46:16,169 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:46:16,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:46:16,170 INFO L85 PathProgramCache]: Analyzing trace with hash -1103122445, now seen corresponding path program 1 times [2022-02-24 00:46:16,170 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:46:16,170 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942613285] [2022-02-24 00:46:16,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:46:16,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:46:16,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:46:16,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:46:16,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:46:16,254 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2022-02-24 00:46:16,254 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:46:16,254 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1942613285] [2022-02-24 00:46:16,254 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1942613285] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:46:16,254 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:46:16,254 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-24 00:46:16,254 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761933671] [2022-02-24 00:46:16,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:46:16,255 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-24 00:46:16,255 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:46:16,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-24 00:46:16,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 00:46:16,255 INFO L87 Difference]: Start difference. First operand 881 states and 1276 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 3 states have internal predecessors, (73), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:46:17,385 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:46:18,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:46:18,930 INFO L93 Difference]: Finished difference Result 1738 states and 2525 transitions. [2022-02-24 00:46:18,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-24 00:46:18,930 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 3 states have internal predecessors, (73), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 131 [2022-02-24 00:46:18,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:46:18,932 INFO L225 Difference]: With dead ends: 1738 [2022-02-24 00:46:18,932 INFO L226 Difference]: Without dead ends: 883 [2022-02-24 00:46:18,933 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 00:46:18,934 INFO L933 BasicCegarLoop]: 211 mSDtfsCounter, 4 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 236 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 396 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-02-24 00:46:18,934 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 396 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 236 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-02-24 00:46:18,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 883 states. [2022-02-24 00:46:18,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 883 to 883. [2022-02-24 00:46:18,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 883 states, 878 states have (on average 1.4510250569476082) internal successors, (1274), 878 states have internal predecessors, (1274), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:46:18,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 883 states to 883 states and 1278 transitions. [2022-02-24 00:46:18,944 INFO L78 Accepts]: Start accepts. Automaton has 883 states and 1278 transitions. Word has length 131 [2022-02-24 00:46:18,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:46:18,944 INFO L470 AbstractCegarLoop]: Abstraction has 883 states and 1278 transitions. [2022-02-24 00:46:18,945 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 3 states have internal predecessors, (73), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:46:18,945 INFO L276 IsEmpty]: Start isEmpty. Operand 883 states and 1278 transitions. [2022-02-24 00:46:18,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-02-24 00:46:18,946 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:46:18,946 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:46:18,946 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-02-24 00:46:18,946 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:46:18,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:46:18,946 INFO L85 PathProgramCache]: Analyzing trace with hash -1237897128, now seen corresponding path program 1 times [2022-02-24 00:46:18,946 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:46:18,947 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526105599] [2022-02-24 00:46:18,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:46:18,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:46:18,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:46:19,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:46:19,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:46:19,031 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 94 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-02-24 00:46:19,031 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:46:19,031 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [526105599] [2022-02-24 00:46:19,031 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [526105599] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:46:19,031 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:46:19,031 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-24 00:46:19,031 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [220855436] [2022-02-24 00:46:19,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:46:19,032 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-24 00:46:19,032 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:46:19,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-24 00:46:19,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 00:46:19,032 INFO L87 Difference]: Start difference. First operand 883 states and 1278 transitions. Second operand has 4 states, 4 states have (on average 20.75) internal successors, (83), 3 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) [2022-02-24 00:46:21,050 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:46:21,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:46:21,322 INFO L93 Difference]: Finished difference Result 2177 states and 3169 transitions. [2022-02-24 00:46:21,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-24 00:46:21,322 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 3 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 133 [2022-02-24 00:46:21,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:46:21,326 INFO L225 Difference]: With dead ends: 2177 [2022-02-24 00:46:21,326 INFO L226 Difference]: Without dead ends: 1322 [2022-02-24 00:46:21,327 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 00:46:21,327 INFO L933 BasicCegarLoop]: 195 mSDtfsCounter, 157 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 15 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-02-24 00:46:21,327 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [157 Valid, 380 Invalid, 260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 244 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-02-24 00:46:21,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1322 states. [2022-02-24 00:46:21,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1322 to 1320. [2022-02-24 00:46:21,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1320 states, 1315 states have (on average 1.4570342205323195) internal successors, (1916), 1315 states have internal predecessors, (1916), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:46:21,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1320 states to 1320 states and 1920 transitions. [2022-02-24 00:46:21,370 INFO L78 Accepts]: Start accepts. Automaton has 1320 states and 1920 transitions. Word has length 133 [2022-02-24 00:46:21,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:46:21,370 INFO L470 AbstractCegarLoop]: Abstraction has 1320 states and 1920 transitions. [2022-02-24 00:46:21,370 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 3 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) [2022-02-24 00:46:21,370 INFO L276 IsEmpty]: Start isEmpty. Operand 1320 states and 1920 transitions. [2022-02-24 00:46:21,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-02-24 00:46:21,372 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:46:21,372 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:46:21,373 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-02-24 00:46:21,373 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:46:21,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:46:21,373 INFO L85 PathProgramCache]: Analyzing trace with hash -224082698, now seen corresponding path program 1 times [2022-02-24 00:46:21,373 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:46:21,373 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442037812] [2022-02-24 00:46:21,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:46:21,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:46:21,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:46:21,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:46:21,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:46:21,468 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 68 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2022-02-24 00:46:21,468 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:46:21,468 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442037812] [2022-02-24 00:46:21,468 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [442037812] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:46:21,468 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:46:21,468 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-24 00:46:21,468 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408761077] [2022-02-24 00:46:21,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:46:21,469 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-24 00:46:21,469 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:46:21,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-24 00:46:21,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 00:46:21,469 INFO L87 Difference]: Start difference. First operand 1320 states and 1920 transitions. Second operand has 4 states, 4 states have (on average 21.5) internal successors, (86), 3 states have internal predecessors, (86), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:46:23,483 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:46:23,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:46:23,763 INFO L93 Difference]: Finished difference Result 1761 states and 2566 transitions. [2022-02-24 00:46:23,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-24 00:46:23,763 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 3 states have internal predecessors, (86), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 134 [2022-02-24 00:46:23,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:46:23,768 INFO L225 Difference]: With dead ends: 1761 [2022-02-24 00:46:23,768 INFO L226 Difference]: Without dead ends: 1759 [2022-02-24 00:46:23,768 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 00:46:23,769 INFO L933 BasicCegarLoop]: 193 mSDtfsCounter, 165 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 243 mSolverCounterSat, 16 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 243 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-02-24 00:46:23,769 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [165 Valid, 378 Invalid, 260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 243 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-02-24 00:46:23,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1759 states. [2022-02-24 00:46:23,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1759 to 1757. [2022-02-24 00:46:23,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1757 states, 1752 states have (on average 1.4606164383561644) internal successors, (2559), 1752 states have internal predecessors, (2559), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:46:23,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1757 states to 1757 states and 2563 transitions. [2022-02-24 00:46:23,794 INFO L78 Accepts]: Start accepts. Automaton has 1757 states and 2563 transitions. Word has length 134 [2022-02-24 00:46:23,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:46:23,794 INFO L470 AbstractCegarLoop]: Abstraction has 1757 states and 2563 transitions. [2022-02-24 00:46:23,794 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 3 states have internal predecessors, (86), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:46:23,794 INFO L276 IsEmpty]: Start isEmpty. Operand 1757 states and 2563 transitions. [2022-02-24 00:46:23,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2022-02-24 00:46:23,796 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:46:23,796 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:46:23,796 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-02-24 00:46:23,796 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:46:23,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:46:23,797 INFO L85 PathProgramCache]: Analyzing trace with hash -1015869731, now seen corresponding path program 1 times [2022-02-24 00:46:23,797 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:46:23,797 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [661847764] [2022-02-24 00:46:23,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:46:23,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:46:23,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:46:23,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:46:23,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:46:23,889 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 115 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-02-24 00:46:23,889 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:46:23,889 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [661847764] [2022-02-24 00:46:23,890 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [661847764] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:46:23,890 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:46:23,890 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:46:23,890 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581791184] [2022-02-24 00:46:23,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:46:23,890 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:46:23,891 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:46:23,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:46:23,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:46:23,891 INFO L87 Difference]: Start difference. First operand 1757 states and 2563 transitions. Second operand has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:46:25,161 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:46:27,182 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:46:28,349 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:46:30,332 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:46:30,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:46:30,715 INFO L93 Difference]: Finished difference Result 3542 states and 5171 transitions. [2022-02-24 00:46:30,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:46:30,716 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 [2022-02-24 00:46:30,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:46:30,720 INFO L225 Difference]: With dead ends: 3542 [2022-02-24 00:46:30,720 INFO L226 Difference]: Without dead ends: 1813 [2022-02-24 00:46:30,722 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:46:30,723 INFO L933 BasicCegarLoop]: 233 mSDtfsCounter, 29 mSDsluCounter, 347 mSDsCounter, 0 mSdLazyCounter, 433 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 580 SdHoareTripleChecker+Invalid, 439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 433 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2022-02-24 00:46:30,723 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [29 Valid, 580 Invalid, 439 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 433 Invalid, 1 Unknown, 0 Unchecked, 6.8s Time] [2022-02-24 00:46:30,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1813 states. [2022-02-24 00:46:30,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1813 to 1757. [2022-02-24 00:46:30,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1757 states, 1752 states have (on average 1.4583333333333333) internal successors, (2555), 1752 states have internal predecessors, (2555), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:46:30,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1757 states to 1757 states and 2559 transitions. [2022-02-24 00:46:30,748 INFO L78 Accepts]: Start accepts. Automaton has 1757 states and 2559 transitions. Word has length 140 [2022-02-24 00:46:30,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:46:30,748 INFO L470 AbstractCegarLoop]: Abstraction has 1757 states and 2559 transitions. [2022-02-24 00:46:30,748 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:46:30,748 INFO L276 IsEmpty]: Start isEmpty. Operand 1757 states and 2559 transitions. [2022-02-24 00:46:30,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2022-02-24 00:46:30,750 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:46:30,750 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:46:30,750 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-02-24 00:46:30,750 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:46:30,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:46:30,751 INFO L85 PathProgramCache]: Analyzing trace with hash 1937528124, now seen corresponding path program 1 times [2022-02-24 00:46:30,751 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:46:30,751 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [35299531] [2022-02-24 00:46:30,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:46:30,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:46:30,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:46:30,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:46:30,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:46:30,840 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 144 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-02-24 00:46:30,840 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:46:30,840 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [35299531] [2022-02-24 00:46:30,841 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [35299531] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:46:30,841 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:46:30,841 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:46:30,841 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835336393] [2022-02-24 00:46:30,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:46:30,841 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:46:30,841 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:46:30,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:46:30,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:46:30,842 INFO L87 Difference]: Start difference. First operand 1757 states and 2559 transitions. Second operand has 5 states, 5 states have (on average 25.4) internal successors, (127), 4 states have internal predecessors, (127), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:46:33,174 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:46:34,328 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 [] [2022-02-24 00:46:35,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:46:35,049 INFO L93 Difference]: Finished difference Result 4033 states and 5871 transitions. [2022-02-24 00:46:35,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:46:35,049 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.4) internal successors, (127), 4 states have internal predecessors, (127), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 157 [2022-02-24 00:46:35,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:46:35,054 INFO L225 Difference]: With dead ends: 4033 [2022-02-24 00:46:35,054 INFO L226 Difference]: Without dead ends: 2304 [2022-02-24 00:46:35,056 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:46:35,057 INFO L933 BasicCegarLoop]: 144 mSDtfsCounter, 106 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 463 mSolverCounterSat, 42 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 396 SdHoareTripleChecker+Invalid, 506 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 463 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-02-24 00:46:35,057 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [106 Valid, 396 Invalid, 506 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 463 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2022-02-24 00:46:35,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2304 states. [2022-02-24 00:46:35,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2304 to 1881. [2022-02-24 00:46:35,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1881 states, 1876 states have (on average 1.4520255863539446) internal successors, (2724), 1876 states have internal predecessors, (2724), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:46:35,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1881 states to 1881 states and 2728 transitions. [2022-02-24 00:46:35,087 INFO L78 Accepts]: Start accepts. Automaton has 1881 states and 2728 transitions. Word has length 157 [2022-02-24 00:46:35,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:46:35,087 INFO L470 AbstractCegarLoop]: Abstraction has 1881 states and 2728 transitions. [2022-02-24 00:46:35,087 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.4) internal successors, (127), 4 states have internal predecessors, (127), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:46:35,087 INFO L276 IsEmpty]: Start isEmpty. Operand 1881 states and 2728 transitions. [2022-02-24 00:46:35,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2022-02-24 00:46:35,089 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:46:35,089 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:46:35,089 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-02-24 00:46:35,089 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:46:35,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:46:35,090 INFO L85 PathProgramCache]: Analyzing trace with hash 539016946, now seen corresponding path program 1 times [2022-02-24 00:46:35,090 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:46:35,090 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969123053] [2022-02-24 00:46:35,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:46:35,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:46:35,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:46:35,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:46:35,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:46:35,179 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2022-02-24 00:46:35,179 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:46:35,180 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969123053] [2022-02-24 00:46:35,180 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [969123053] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:46:35,180 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:46:35,180 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-24 00:46:35,180 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161996064] [2022-02-24 00:46:35,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:46:35,181 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-24 00:46:35,181 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:46:35,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-24 00:46:35,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 00:46:35,182 INFO L87 Difference]: Start difference. First operand 1881 states and 2728 transitions. Second operand has 4 states, 4 states have (on average 26.5) internal successors, (106), 3 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:46:36,341 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:46:38,361 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:46:40,392 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:46:40,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:46:40,862 INFO L93 Difference]: Finished difference Result 4156 states and 6042 transitions. [2022-02-24 00:46:40,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-24 00:46:40,863 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.5) internal successors, (106), 3 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 171 [2022-02-24 00:46:40,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:46:40,868 INFO L225 Difference]: With dead ends: 4156 [2022-02-24 00:46:40,868 INFO L226 Difference]: Without dead ends: 2303 [2022-02-24 00:46:40,871 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 00:46:40,872 INFO L933 BasicCegarLoop]: 381 mSDtfsCounter, 143 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 421 mSolverCounterSat, 9 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 575 SdHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 421 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-02-24 00:46:40,872 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [143 Valid, 575 Invalid, 432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 421 Invalid, 2 Unknown, 0 Unchecked, 5.6s Time] [2022-02-24 00:46:40,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2303 states. [2022-02-24 00:46:40,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2303 to 2303. [2022-02-24 00:46:40,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2303 states, 2298 states have (on average 1.4508268059181897) internal successors, (3334), 2298 states have internal predecessors, (3334), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:46:40,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2303 states to 2303 states and 3338 transitions. [2022-02-24 00:46:40,958 INFO L78 Accepts]: Start accepts. Automaton has 2303 states and 3338 transitions. Word has length 171 [2022-02-24 00:46:40,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:46:40,958 INFO L470 AbstractCegarLoop]: Abstraction has 2303 states and 3338 transitions. [2022-02-24 00:46:40,958 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.5) internal successors, (106), 3 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:46:40,958 INFO L276 IsEmpty]: Start isEmpty. Operand 2303 states and 3338 transitions. [2022-02-24 00:46:40,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2022-02-24 00:46:40,961 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:46:40,961 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:46:40,961 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-02-24 00:46:40,961 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:46:40,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:46:40,961 INFO L85 PathProgramCache]: Analyzing trace with hash -1396643341, now seen corresponding path program 1 times [2022-02-24 00:46:40,961 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:46:40,961 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884997406] [2022-02-24 00:46:40,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:46:40,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:46:41,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:46:41,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:46:41,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:46:41,049 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 160 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-02-24 00:46:41,049 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:46:41,049 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884997406] [2022-02-24 00:46:41,049 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [884997406] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:46:41,049 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:46:41,049 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-24 00:46:41,049 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745697928] [2022-02-24 00:46:41,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:46:41,049 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-24 00:46:41,050 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:46:41,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-24 00:46:41,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 00:46:41,050 INFO L87 Difference]: Start difference. First operand 2303 states and 3338 transitions. Second operand has 4 states, 4 states have (on average 35.25) internal successors, (141), 3 states have internal predecessors, (141), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:46:44,040 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:46:45,330 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:46:45,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:46:45,757 INFO L93 Difference]: Finished difference Result 5010 states and 7276 transitions. [2022-02-24 00:46:45,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-24 00:46:45,757 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 3 states have internal predecessors, (141), 1 states have call successors, (3), 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 171 [2022-02-24 00:46:45,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:46:45,767 INFO L225 Difference]: With dead ends: 5010 [2022-02-24 00:46:45,767 INFO L226 Difference]: Without dead ends: 2735 [2022-02-24 00:46:45,769 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 00:46:45,770 INFO L933 BasicCegarLoop]: 374 mSDtfsCounter, 139 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 416 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 568 SdHoareTripleChecker+Invalid, 426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 416 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-02-24 00:46:45,770 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [139 Valid, 568 Invalid, 426 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 416 Invalid, 1 Unknown, 0 Unchecked, 4.7s Time] [2022-02-24 00:46:45,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2735 states. [2022-02-24 00:46:45,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2735 to 2735. [2022-02-24 00:46:45,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2735 states, 2730 states have (on average 1.4498168498168498) internal successors, (3958), 2730 states have internal predecessors, (3958), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:46:45,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2735 states to 2735 states and 3962 transitions. [2022-02-24 00:46:45,841 INFO L78 Accepts]: Start accepts. Automaton has 2735 states and 3962 transitions. Word has length 171 [2022-02-24 00:46:45,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:46:45,842 INFO L470 AbstractCegarLoop]: Abstraction has 2735 states and 3962 transitions. [2022-02-24 00:46:45,842 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 3 states have internal predecessors, (141), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:46:45,842 INFO L276 IsEmpty]: Start isEmpty. Operand 2735 states and 3962 transitions. [2022-02-24 00:46:45,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-02-24 00:46:45,847 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:46:45,847 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 4, 4, 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] [2022-02-24 00:46:45,847 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-02-24 00:46:45,847 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:46:45,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:46:45,847 INFO L85 PathProgramCache]: Analyzing trace with hash 200221691, now seen corresponding path program 1 times [2022-02-24 00:46:45,848 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:46:45,848 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978859725] [2022-02-24 00:46:45,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:46:45,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:46:45,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:46:45,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:46:45,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:46:45,960 INFO L134 CoverageAnalysis]: Checked inductivity of 358 backedges. 252 proven. 1 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2022-02-24 00:46:45,960 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:46:45,961 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978859725] [2022-02-24 00:46:45,961 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [978859725] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-24 00:46:45,961 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [534205694] [2022-02-24 00:46:45,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:46:45,961 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-24 00:46:45,961 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-24 00:46:45,962 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-24 00:46:45,970 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-02-24 00:46:46,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:46:46,678 INFO L263 TraceCheckSpWp]: Trace formula consists of 1202 conjuncts, 2 conjunts are in the unsatisfiable core [2022-02-24 00:46:46,689 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-24 00:46:47,025 INFO L134 CoverageAnalysis]: Checked inductivity of 358 backedges. 191 proven. 0 refuted. 0 times theorem prover too weak. 167 trivial. 0 not checked. [2022-02-24 00:46:47,025 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-02-24 00:46:47,025 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [534205694] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:46:47,026 INFO L191 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-02-24 00:46:47,026 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2022-02-24 00:46:47,026 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388363760] [2022-02-24 00:46:47,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:46:47,026 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-24 00:46:47,026 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:46:47,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-24 00:46:47,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-02-24 00:46:47,027 INFO L87 Difference]: Start difference. First operand 2735 states and 3962 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:46:47,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:46:47,113 INFO L93 Difference]: Finished difference Result 5912 states and 8576 transitions. [2022-02-24 00:46:47,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-24 00:46:47,114 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 189 [2022-02-24 00:46:47,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:46:47,120 INFO L225 Difference]: With dead ends: 5912 [2022-02-24 00:46:47,120 INFO L226 Difference]: Without dead ends: 3205 [2022-02-24 00:46:47,123 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 192 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-02-24 00:46:47,123 INFO L933 BasicCegarLoop]: 385 mSDtfsCounter, 138 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 579 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-24 00:46:47,123 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [138 Valid, 579 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-24 00:46:47,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3205 states. [2022-02-24 00:46:47,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3205 to 3203. [2022-02-24 00:46:47,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3203 states, 3198 states have (on average 1.4446529080675423) internal successors, (4620), 3198 states have internal predecessors, (4620), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:46:47,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3203 states to 3203 states and 4624 transitions. [2022-02-24 00:46:47,167 INFO L78 Accepts]: Start accepts. Automaton has 3203 states and 4624 transitions. Word has length 189 [2022-02-24 00:46:47,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:46:47,168 INFO L470 AbstractCegarLoop]: Abstraction has 3203 states and 4624 transitions. [2022-02-24 00:46:47,168 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:46:47,168 INFO L276 IsEmpty]: Start isEmpty. Operand 3203 states and 4624 transitions. [2022-02-24 00:46:47,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2022-02-24 00:46:47,171 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:46:47,171 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 5, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:46:47,193 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-02-24 00:46:47,386 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2022-02-24 00:46:47,386 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:46:47,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:46:47,386 INFO L85 PathProgramCache]: Analyzing trace with hash -333038324, now seen corresponding path program 1 times [2022-02-24 00:46:47,387 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:46:47,387 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242033610] [2022-02-24 00:46:47,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:46:47,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:46:47,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:46:47,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:46:47,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:46:47,517 INFO L134 CoverageAnalysis]: Checked inductivity of 490 backedges. 343 proven. 0 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2022-02-24 00:46:47,517 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:46:47,517 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242033610] [2022-02-24 00:46:47,517 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1242033610] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:46:47,517 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:46:47,517 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:46:47,517 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293249126] [2022-02-24 00:46:47,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:46:47,518 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:46:47,518 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:46:47,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:46:47,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:46:47,520 INFO L87 Difference]: Start difference. First operand 3203 states and 4624 transitions. Second operand has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:46:50,062 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:46:51,503 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:46:52,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:46:52,926 INFO L93 Difference]: Finished difference Result 6518 states and 9408 transitions. [2022-02-24 00:46:52,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:46:52,926 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 1 states have call successors, (3), 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 228 [2022-02-24 00:46:52,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:46:52,935 INFO L225 Difference]: With dead ends: 6518 [2022-02-24 00:46:52,935 INFO L226 Difference]: Without dead ends: 3343 [2022-02-24 00:46:52,939 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:46:52,940 INFO L933 BasicCegarLoop]: 228 mSDtfsCounter, 37 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 453 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 570 SdHoareTripleChecker+Invalid, 459 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 453 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-02-24 00:46:52,943 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 570 Invalid, 459 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 453 Invalid, 1 Unknown, 0 Unchecked, 5.4s Time] [2022-02-24 00:46:52,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3343 states. [2022-02-24 00:46:52,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3343 to 3203. [2022-02-24 00:46:52,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3203 states, 3198 states have (on average 1.4424640400250157) internal successors, (4613), 3198 states have internal predecessors, (4613), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:46:52,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3203 states to 3203 states and 4617 transitions. [2022-02-24 00:46:52,990 INFO L78 Accepts]: Start accepts. Automaton has 3203 states and 4617 transitions. Word has length 228 [2022-02-24 00:46:52,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:46:52,990 INFO L470 AbstractCegarLoop]: Abstraction has 3203 states and 4617 transitions. [2022-02-24 00:46:52,990 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:46:52,990 INFO L276 IsEmpty]: Start isEmpty. Operand 3203 states and 4617 transitions. [2022-02-24 00:46:52,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2022-02-24 00:46:52,994 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:46:52,995 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 6, 6, 5, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:46:52,995 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-02-24 00:46:52,995 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:46:52,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:46:52,995 INFO L85 PathProgramCache]: Analyzing trace with hash 956860942, now seen corresponding path program 1 times [2022-02-24 00:46:52,995 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:46:52,995 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369770211] [2022-02-24 00:46:52,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:46:52,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:46:53,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:46:53,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:46:53,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:46:53,100 INFO L134 CoverageAnalysis]: Checked inductivity of 625 backedges. 414 proven. 0 refuted. 0 times theorem prover too weak. 211 trivial. 0 not checked. [2022-02-24 00:46:53,100 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:46:53,100 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369770211] [2022-02-24 00:46:53,100 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [369770211] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:46:53,100 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:46:53,100 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:46:53,100 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196415085] [2022-02-24 00:46:53,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:46:53,101 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:46:53,101 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:46:53,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:46:53,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:46:53,101 INFO L87 Difference]: Start difference. First operand 3203 states and 4617 transitions. Second operand has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:46:57,448 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:46:57,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:46:57,909 INFO L93 Difference]: Finished difference Result 6787 states and 9746 transitions. [2022-02-24 00:46:57,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:46:57,910 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 1 states have call successors, (3), 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 250 [2022-02-24 00:46:57,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:46:57,914 INFO L225 Difference]: With dead ends: 6787 [2022-02-24 00:46:57,915 INFO L226 Difference]: Without dead ends: 3612 [2022-02-24 00:46:57,918 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:46:57,918 INFO L933 BasicCegarLoop]: 161 mSDtfsCounter, 118 mSDsluCounter, 268 mSDsCounter, 0 mSdLazyCounter, 492 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 429 SdHoareTripleChecker+Invalid, 541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 492 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-02-24 00:46:57,918 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [118 Valid, 429 Invalid, 541 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 492 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2022-02-24 00:46:57,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3612 states. [2022-02-24 00:46:57,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3612 to 3203. [2022-02-24 00:46:57,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3203 states, 3198 states have (on average 1.4237023139462164) internal successors, (4553), 3198 states have internal predecessors, (4553), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:46:57,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3203 states to 3203 states and 4557 transitions. [2022-02-24 00:46:57,964 INFO L78 Accepts]: Start accepts. Automaton has 3203 states and 4557 transitions. Word has length 250 [2022-02-24 00:46:57,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:46:57,964 INFO L470 AbstractCegarLoop]: Abstraction has 3203 states and 4557 transitions. [2022-02-24 00:46:57,964 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:46:57,964 INFO L276 IsEmpty]: Start isEmpty. Operand 3203 states and 4557 transitions. [2022-02-24 00:46:57,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2022-02-24 00:46:57,968 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:46:57,969 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 6, 5, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:46:57,969 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-02-24 00:46:57,969 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:46:57,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:46:57,969 INFO L85 PathProgramCache]: Analyzing trace with hash -2101862341, now seen corresponding path program 1 times [2022-02-24 00:46:57,969 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:46:57,969 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994268187] [2022-02-24 00:46:57,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:46:57,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:46:58,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:46:58,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:46:58,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:46:58,112 INFO L134 CoverageAnalysis]: Checked inductivity of 631 backedges. 420 proven. 0 refuted. 0 times theorem prover too weak. 211 trivial. 0 not checked. [2022-02-24 00:46:58,112 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:46:58,112 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994268187] [2022-02-24 00:46:58,112 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1994268187] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:46:58,112 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:46:58,112 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:46:58,112 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857779070] [2022-02-24 00:46:58,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:46:58,112 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:46:58,112 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:46:58,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:46:58,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:46:58,113 INFO L87 Difference]: Start difference. First operand 3203 states and 4557 transitions. Second operand has 5 states, 5 states have (on average 28.4) internal successors, (142), 4 states have internal predecessors, (142), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:47:01,496 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:47:01,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:47:01,921 INFO L93 Difference]: Finished difference Result 6787 states and 9626 transitions. [2022-02-24 00:47:01,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:47:01,921 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.4) internal successors, (142), 4 states have internal predecessors, (142), 1 states have call successors, (3), 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 251 [2022-02-24 00:47:01,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:47:01,929 INFO L225 Difference]: With dead ends: 6787 [2022-02-24 00:47:01,929 INFO L226 Difference]: Without dead ends: 3612 [2022-02-24 00:47:01,933 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:47:01,933 INFO L933 BasicCegarLoop]: 137 mSDtfsCounter, 117 mSDsluCounter, 245 mSDsCounter, 0 mSdLazyCounter, 466 mSolverCounterSat, 53 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 466 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-02-24 00:47:01,934 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [117 Valid, 382 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 466 Invalid, 1 Unknown, 0 Unchecked, 3.8s Time] [2022-02-24 00:47:01,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3612 states. [2022-02-24 00:47:01,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3612 to 3203. [2022-02-24 00:47:02,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3203 states, 3198 states have (on average 1.404940587867417) internal successors, (4493), 3198 states have internal predecessors, (4493), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:47:02,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3203 states to 3203 states and 4497 transitions. [2022-02-24 00:47:02,019 INFO L78 Accepts]: Start accepts. Automaton has 3203 states and 4497 transitions. Word has length 251 [2022-02-24 00:47:02,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:47:02,020 INFO L470 AbstractCegarLoop]: Abstraction has 3203 states and 4497 transitions. [2022-02-24 00:47:02,020 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.4) internal successors, (142), 4 states have internal predecessors, (142), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:47:02,020 INFO L276 IsEmpty]: Start isEmpty. Operand 3203 states and 4497 transitions. [2022-02-24 00:47:02,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2022-02-24 00:47:02,024 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:47:02,024 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 6, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:47:02,024 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-02-24 00:47:02,024 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:47:02,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:47:02,025 INFO L85 PathProgramCache]: Analyzing trace with hash -737145075, now seen corresponding path program 1 times [2022-02-24 00:47:02,025 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:47:02,025 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1112639264] [2022-02-24 00:47:02,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:47:02,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:47:02,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:47:02,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:47:02,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:47:02,155 INFO L134 CoverageAnalysis]: Checked inductivity of 647 backedges. 432 proven. 0 refuted. 0 times theorem prover too weak. 215 trivial. 0 not checked. [2022-02-24 00:47:02,155 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:47:02,156 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1112639264] [2022-02-24 00:47:02,156 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1112639264] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:47:02,156 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:47:02,156 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:47:02,156 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643847389] [2022-02-24 00:47:02,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:47:02,156 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:47:02,156 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:47:02,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:47:02,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:47:02,157 INFO L87 Difference]: Start difference. First operand 3203 states and 4497 transitions. Second operand has 5 states, 5 states have (on average 29.2) internal successors, (146), 4 states have internal predecessors, (146), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:47:03,591 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:47:06,552 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:47:06,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:47:06,957 INFO L93 Difference]: Finished difference Result 6658 states and 9321 transitions. [2022-02-24 00:47:06,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:47:06,961 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.2) internal successors, (146), 4 states have internal predecessors, (146), 1 states have call successors, (3), 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 253 [2022-02-24 00:47:06,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:47:06,966 INFO L225 Difference]: With dead ends: 6658 [2022-02-24 00:47:06,966 INFO L226 Difference]: Without dead ends: 3483 [2022-02-24 00:47:06,970 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:47:06,970 INFO L933 BasicCegarLoop]: 234 mSDtfsCounter, 23 mSDsluCounter, 347 mSDsCounter, 0 mSdLazyCounter, 430 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 581 SdHoareTripleChecker+Invalid, 438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 430 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-02-24 00:47:06,970 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [23 Valid, 581 Invalid, 438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 430 Invalid, 1 Unknown, 0 Unchecked, 4.7s Time] [2022-02-24 00:47:06,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3483 states. [2022-02-24 00:47:07,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3483 to 3413. [2022-02-24 00:47:07,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3413 states, 3408 states have (on average 1.3984741784037558) internal successors, (4766), 3408 states have internal predecessors, (4766), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:47:07,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3413 states to 3413 states and 4770 transitions. [2022-02-24 00:47:07,052 INFO L78 Accepts]: Start accepts. Automaton has 3413 states and 4770 transitions. Word has length 253 [2022-02-24 00:47:07,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:47:07,053 INFO L470 AbstractCegarLoop]: Abstraction has 3413 states and 4770 transitions. [2022-02-24 00:47:07,053 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.2) internal successors, (146), 4 states have internal predecessors, (146), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:47:07,053 INFO L276 IsEmpty]: Start isEmpty. Operand 3413 states and 4770 transitions. [2022-02-24 00:47:07,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2022-02-24 00:47:07,057 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:47:07,057 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:47:07,057 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-02-24 00:47:07,057 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:47:07,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:47:07,058 INFO L85 PathProgramCache]: Analyzing trace with hash 2036326854, now seen corresponding path program 1 times [2022-02-24 00:47:07,058 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:47:07,058 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943717273] [2022-02-24 00:47:07,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:47:07,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:47:07,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:47:07,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:47:07,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:47:07,380 INFO L134 CoverageAnalysis]: Checked inductivity of 515 backedges. 368 proven. 20 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2022-02-24 00:47:07,380 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:47:07,380 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1943717273] [2022-02-24 00:47:07,380 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1943717273] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-24 00:47:07,380 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1727641577] [2022-02-24 00:47:07,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:47:07,381 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-24 00:47:07,381 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-24 00:47:07,382 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-24 00:47:07,383 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-02-24 00:47:08,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:47:08,251 INFO L263 TraceCheckSpWp]: Trace formula consists of 1435 conjuncts, 49 conjunts are in the unsatisfiable core [2022-02-24 00:47:08,264 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-24 00:47:08,346 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-02-24 00:47:08,347 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-02-24 00:47:08,392 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-02-24 00:47:08,393 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2022-02-24 00:47:08,455 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2022-02-24 00:47:08,515 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-02-24 00:47:08,534 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 19 [2022-02-24 00:47:08,537 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 13 [2022-02-24 00:47:08,551 INFO L356 Elim1Store]: treesize reduction 25, result has 43.2 percent of original size [2022-02-24 00:47:08,552 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 32 [2022-02-24 00:47:08,635 INFO L356 Elim1Store]: treesize reduction 66, result has 30.5 percent of original size [2022-02-24 00:47:08,636 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 42 treesize of output 54 [2022-02-24 00:47:08,828 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 11 [2022-02-24 00:47:08,946 INFO L134 CoverageAnalysis]: Checked inductivity of 515 backedges. 363 proven. 68 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2022-02-24 00:47:08,947 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-24 00:47:09,041 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_12525 (Array Int Int))) (not (= (select (select (store |c_#memory_int| (select (select |c_#memory_$Pointer$.base| c_ssl3_accept_~s.base) (+ 116 c_ssl3_accept_~s.offset)) v_ArrVal_12525) c_ssl3_accept_~s.base) (+ 72 c_ssl3_accept_~s.offset)) 8640))) is different from false [2022-02-24 00:47:09,048 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-24 00:47:09,048 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 30 [2022-02-24 00:47:09,051 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 39 [2022-02-24 00:47:09,054 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 4 [2022-02-24 00:47:09,148 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_12516 (Array Int Int))) (not (= c_ssl3_accept_~s.base (select (select (store |c_#memory_$Pointer$.base| (select (select |c_#memory_$Pointer$.base| c_ssl3_accept_~s.base) (+ 248 c_ssl3_accept_~s.offset)) v_ArrVal_12516) c_ssl3_accept_~s.base) (+ 116 c_ssl3_accept_~s.offset))))) is different from false [2022-02-24 00:47:09,388 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-24 00:47:09,388 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 22 [2022-02-24 00:47:09,402 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 26 [2022-02-24 00:47:09,403 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 20 [2022-02-24 00:47:11,420 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_arrayElimCell_14 Int) (v_arrayElimCell_15 Int)) (not (= (select (select (store |c_#memory_int| v_arrayElimCell_14 (store (select |c_#memory_int| v_arrayElimCell_14) (+ 904 v_arrayElimCell_15) 8640)) c_ssl3_accept_~s.base) (+ 72 c_ssl3_accept_~s.offset)) 8656))) is different from false [2022-02-24 00:47:11,576 INFO L134 CoverageAnalysis]: Checked inductivity of 515 backedges. 306 proven. 105 refuted. 0 times theorem prover too weak. 103 trivial. 1 not checked. [2022-02-24 00:47:11,576 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1727641577] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-24 00:47:11,576 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-24 00:47:11,576 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 11] total 25 [2022-02-24 00:47:11,576 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294533777] [2022-02-24 00:47:11,576 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-24 00:47:11,577 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-02-24 00:47:11,577 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:47:11,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-02-24 00:47:11,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=402, Unknown=4, NotChecked=126, Total=600 [2022-02-24 00:47:11,578 INFO L87 Difference]: Start difference. First operand 3413 states and 4770 transitions. Second operand has 25 states, 25 states have (on average 14.04) internal successors, (351), 24 states have internal predecessors, (351), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:47:13,149 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:47:14,625 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:47:16,017 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:47:18,037 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:47:19,241 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:47:21,262 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:47:22,500 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:47:24,459 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:47:26,490 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:47:28,984 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_#memory_int| c_ssl3_accept_~s.base))) (and (forall ((v_arrayElimCell_14 Int) (v_arrayElimCell_15 Int)) (not (= (select (select (store |c_#memory_int| v_arrayElimCell_14 (store (select |c_#memory_int| v_arrayElimCell_14) (+ 904 v_arrayElimCell_15) 8640)) c_ssl3_accept_~s.base) (+ 72 c_ssl3_accept_~s.offset)) 8656))) (= (select .cse0 (+ 72 c_ssl3_accept_~s.offset)) 8448) (= (select .cse0 (+ 88 c_ssl3_accept_~s.offset)) 0))) is different from false [2022-02-24 00:47:31,146 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_arrayElimCell_14 Int) (v_arrayElimCell_15 Int)) (not (= (select (select (store |c_#memory_int| v_arrayElimCell_14 (store (select |c_#memory_int| v_arrayElimCell_14) (+ 904 v_arrayElimCell_15) 8640)) c_ssl3_accept_~s.base) (+ 72 c_ssl3_accept_~s.offset)) 8656))) (= (select (select |c_#memory_int| c_ssl3_accept_~s.base) (+ 72 c_ssl3_accept_~s.offset)) 8448)) is different from false [2022-02-24 00:47:31,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:47:31,189 INFO L93 Difference]: Finished difference Result 9261 states and 12962 transitions. [2022-02-24 00:47:31,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-02-24 00:47:31,189 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 14.04) internal successors, (351), 24 states have internal predecessors, (351), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 256 [2022-02-24 00:47:31,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:47:31,196 INFO L225 Difference]: With dead ends: 9261 [2022-02-24 00:47:31,196 INFO L226 Difference]: Without dead ends: 5876 [2022-02-24 00:47:31,200 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 547 GetRequests, 505 SyntacticMatches, 3 SemanticMatches, 39 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 261 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=180, Invalid=1094, Unknown=6, NotChecked=360, Total=1640 [2022-02-24 00:47:31,200 INFO L933 BasicCegarLoop]: 171 mSDtfsCounter, 772 mSDsluCounter, 2303 mSDsCounter, 0 mSdLazyCounter, 1917 mSolverCounterSat, 221 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 772 SdHoareTripleChecker+Valid, 2474 SdHoareTripleChecker+Invalid, 4483 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 221 IncrementalHoareTripleChecker+Valid, 1917 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 2342 IncrementalHoareTripleChecker+Unchecked, 16.3s IncrementalHoareTripleChecker+Time [2022-02-24 00:47:31,201 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [772 Valid, 2474 Invalid, 4483 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [221 Valid, 1917 Invalid, 3 Unknown, 2342 Unchecked, 16.3s Time] [2022-02-24 00:47:31,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5876 states. [2022-02-24 00:47:31,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5876 to 3605. [2022-02-24 00:47:31,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3605 states, 3600 states have (on average 1.3955555555555557) internal successors, (5024), 3600 states have internal predecessors, (5024), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:47:31,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3605 states to 3605 states and 5028 transitions. [2022-02-24 00:47:31,269 INFO L78 Accepts]: Start accepts. Automaton has 3605 states and 5028 transitions. Word has length 256 [2022-02-24 00:47:31,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:47:31,270 INFO L470 AbstractCegarLoop]: Abstraction has 3605 states and 5028 transitions. [2022-02-24 00:47:31,270 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 14.04) internal successors, (351), 24 states have internal predecessors, (351), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:47:31,270 INFO L276 IsEmpty]: Start isEmpty. Operand 3605 states and 5028 transitions. [2022-02-24 00:47:31,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2022-02-24 00:47:31,274 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:47:31,275 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:47:31,299 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-02-24 00:47:31,487 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable44 [2022-02-24 00:47:31,488 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:47:31,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:47:31,488 INFO L85 PathProgramCache]: Analyzing trace with hash -1785121499, now seen corresponding path program 1 times [2022-02-24 00:47:31,488 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:47:31,488 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281610027] [2022-02-24 00:47:31,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:47:31,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:47:31,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:47:32,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:47:32,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:47:32,054 INFO L134 CoverageAnalysis]: Checked inductivity of 515 backedges. 370 proven. 72 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2022-02-24 00:47:32,054 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:47:32,054 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [281610027] [2022-02-24 00:47:32,054 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [281610027] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-24 00:47:32,055 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [168031079] [2022-02-24 00:47:32,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:47:32,055 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-24 00:47:32,055 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-24 00:47:32,056 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-24 00:47:32,059 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-02-24 00:47:32,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:47:32,892 INFO L263 TraceCheckSpWp]: Trace formula consists of 1436 conjuncts, 29 conjunts are in the unsatisfiable core [2022-02-24 00:47:32,897 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-24 00:47:32,929 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-02-24 00:47:32,930 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-02-24 00:47:32,975 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-02-24 00:47:32,975 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2022-02-24 00:47:33,061 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2022-02-24 00:47:33,138 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-02-24 00:47:33,157 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 19 [2022-02-24 00:47:33,160 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 13 [2022-02-24 00:47:33,173 INFO L356 Elim1Store]: treesize reduction 25, result has 43.2 percent of original size [2022-02-24 00:47:33,174 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 32 [2022-02-24 00:47:33,235 INFO L356 Elim1Store]: treesize reduction 66, result has 30.5 percent of original size [2022-02-24 00:47:33,235 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 42 treesize of output 54 [2022-02-24 00:47:33,400 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 11 [2022-02-24 00:47:33,510 INFO L134 CoverageAnalysis]: Checked inductivity of 515 backedges. 363 proven. 68 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2022-02-24 00:47:33,510 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-24 00:47:33,688 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 26 [2022-02-24 00:47:33,690 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 20 [2022-02-24 00:47:35,055 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_arrayElimCell_25 Int) (v_arrayElimCell_26 Int)) (not (= (select (select (store |c_#memory_int| v_arrayElimCell_25 (store (select |c_#memory_int| v_arrayElimCell_25) (+ 904 v_arrayElimCell_26) 3)) c_ssl3_accept_~s.base) (+ 72 c_ssl3_accept_~s.offset)) 8656))) is different from false [2022-02-24 00:47:35,167 INFO L134 CoverageAnalysis]: Checked inductivity of 515 backedges. 378 proven. 0 refuted. 0 times theorem prover too weak. 137 trivial. 0 not checked. [2022-02-24 00:47:35,168 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [168031079] provided 1 perfect and 1 imperfect interpolant sequences [2022-02-24 00:47:35,168 INFO L191 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-02-24 00:47:35,168 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [13, 10] total 22 [2022-02-24 00:47:35,168 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579667948] [2022-02-24 00:47:35,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:47:35,168 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:47:35,168 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:47:35,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:47:35,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=364, Unknown=1, NotChecked=38, Total=462 [2022-02-24 00:47:35,169 INFO L87 Difference]: Start difference. First operand 3605 states and 5028 transitions. Second operand has 5 states, 5 states have (on average 31.6) internal successors, (158), 5 states have internal predecessors, (158), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:47:37,175 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:47:38,948 WARN L838 $PredicateComparison]: unable to prove that (and (not (= (select (select |c_#memory_int| c_ssl3_accept_~s.base) (+ 72 c_ssl3_accept_~s.offset)) 8656)) (forall ((v_arrayElimCell_25 Int) (v_arrayElimCell_26 Int)) (not (= (select (select (store |c_#memory_int| v_arrayElimCell_25 (store (select |c_#memory_int| v_arrayElimCell_25) (+ 904 v_arrayElimCell_26) 3)) c_ssl3_accept_~s.base) (+ 72 c_ssl3_accept_~s.offset)) 8656)))) is different from false [2022-02-24 00:47:39,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:47:39,044 INFO L93 Difference]: Finished difference Result 7934 states and 11053 transitions. [2022-02-24 00:47:39,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:47:39,045 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.6) internal successors, (158), 5 states have internal predecessors, (158), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 256 [2022-02-24 00:47:39,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:47:39,052 INFO L225 Difference]: With dead ends: 7934 [2022-02-24 00:47:39,052 INFO L226 Difference]: Without dead ends: 4357 [2022-02-24 00:47:39,056 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 530 GetRequests, 508 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=66, Invalid=402, Unknown=2, NotChecked=82, Total=552 [2022-02-24 00:47:39,058 INFO L933 BasicCegarLoop]: 182 mSDtfsCounter, 98 mSDsluCounter, 338 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 43 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 520 SdHoareTripleChecker+Invalid, 502 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 214 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-02-24 00:47:39,058 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [98 Valid, 520 Invalid, 502 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 244 Invalid, 1 Unknown, 214 Unchecked, 2.2s Time] [2022-02-24 00:47:39,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4357 states. [2022-02-24 00:47:39,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4357 to 3941. [2022-02-24 00:47:39,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3941 states, 3936 states have (on average 1.3948170731707317) internal successors, (5490), 3936 states have internal predecessors, (5490), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:47:39,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3941 states to 3941 states and 5494 transitions. [2022-02-24 00:47:39,130 INFO L78 Accepts]: Start accepts. Automaton has 3941 states and 5494 transitions. Word has length 256 [2022-02-24 00:47:39,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:47:39,130 INFO L470 AbstractCegarLoop]: Abstraction has 3941 states and 5494 transitions. [2022-02-24 00:47:39,130 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.6) internal successors, (158), 5 states have internal predecessors, (158), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:47:39,130 INFO L276 IsEmpty]: Start isEmpty. Operand 3941 states and 5494 transitions. [2022-02-24 00:47:39,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2022-02-24 00:47:39,135 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:47:39,136 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:47:39,177 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-02-24 00:47:39,358 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-24 00:47:39,358 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:47:39,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:47:39,359 INFO L85 PathProgramCache]: Analyzing trace with hash -745860491, now seen corresponding path program 1 times [2022-02-24 00:47:39,359 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:47:39,359 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175109882] [2022-02-24 00:47:39,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:47:39,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:47:39,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:47:39,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:47:39,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:47:39,693 INFO L134 CoverageAnalysis]: Checked inductivity of 517 backedges. 372 proven. 72 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2022-02-24 00:47:39,693 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:47:39,693 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175109882] [2022-02-24 00:47:39,693 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [175109882] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-24 00:47:39,693 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [287057918] [2022-02-24 00:47:39,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:47:39,693 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-24 00:47:39,694 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-24 00:47:39,695 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-24 00:47:39,696 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-02-24 00:47:40,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:47:40,571 INFO L263 TraceCheckSpWp]: Trace formula consists of 1439 conjuncts, 54 conjunts are in the unsatisfiable core [2022-02-24 00:47:40,588 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-24 00:47:40,644 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-02-24 00:47:40,645 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-02-24 00:47:40,686 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-02-24 00:47:40,686 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2022-02-24 00:47:40,781 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-02-24 00:47:40,785 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-02-24 00:47:40,812 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-02-24 00:47:40,812 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 49 [2022-02-24 00:47:40,829 INFO L356 Elim1Store]: treesize reduction 35, result has 45.3 percent of original size [2022-02-24 00:47:40,829 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 52 [2022-02-24 00:47:40,832 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 37 [2022-02-24 00:47:40,856 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 32 [2022-02-24 00:47:40,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:47:40,976 INFO L356 Elim1Store]: treesize reduction 94, result has 40.9 percent of original size [2022-02-24 00:47:40,976 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 81 treesize of output 120 [2022-02-24 00:47:40,985 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-02-24 00:47:40,985 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 133 treesize of output 114 [2022-02-24 00:47:41,340 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-02-24 00:47:41,431 INFO L134 CoverageAnalysis]: Checked inductivity of 517 backedges. 375 proven. 48 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2022-02-24 00:47:41,431 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-24 00:47:41,533 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 32 [2022-02-24 00:47:42,080 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_13773 (Array Int Int))) (not (= (select (select (store |c_#memory_$Pointer$.base| (select (select |c_#memory_$Pointer$.base| c_ssl3_accept_~s.base) (+ 248 c_ssl3_accept_~s.offset)) v_ArrVal_13773) c_ssl3_accept_~s.base) (+ 116 c_ssl3_accept_~s.offset)) c_ssl3_accept_~s.base))) is different from false [2022-02-24 00:47:43,903 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 32 [2022-02-24 00:47:43,906 WARN L838 $PredicateComparison]: unable to prove that (or (forall ((v_arrayElimCell_39 Int)) (not (= 8657 (select (select (let ((.cse0 (select (select |c_#memory_$Pointer$.base| c_ssl3_accept_~s.base) (+ 116 c_ssl3_accept_~s.offset)))) (store |c_#memory_int| .cse0 (store (select |c_#memory_int| .cse0) (+ 904 v_arrayElimCell_39) 3))) c_ssl3_accept_~s.base) (+ 72 c_ssl3_accept_~s.offset))))) (forall ((v_ArrVal_13773 (Array Int Int)) (v_ArrVal_13769 Int) (v_ArrVal_13767 (Array Int Int))) (not (= (let ((.cse3 (+ 116 c_ssl3_accept_~s.offset))) (select (select (let ((.cse1 (store |c_#memory_$Pointer$.base| (select (select |c_#memory_$Pointer$.base| c_ssl3_accept_~s.base) .cse3) v_ArrVal_13767))) (let ((.cse2 (select .cse1 c_ssl3_accept_~s.base))) (store (store .cse1 c_ssl3_accept_~s.base (store .cse2 (+ 88 c_ssl3_accept_~s.offset) v_ArrVal_13769)) (select .cse2 (+ 248 c_ssl3_accept_~s.offset)) v_ArrVal_13773))) c_ssl3_accept_~s.base) .cse3)) c_ssl3_accept_~s.base)))) is different from false [2022-02-24 00:47:44,023 INFO L134 CoverageAnalysis]: Checked inductivity of 517 backedges. 307 proven. 106 refuted. 0 times theorem prover too weak. 103 trivial. 1 not checked. [2022-02-24 00:47:44,023 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [287057918] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-24 00:47:44,023 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-24 00:47:44,023 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9, 13] total 26 [2022-02-24 00:47:44,023 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822592620] [2022-02-24 00:47:44,023 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-24 00:47:44,024 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-02-24 00:47:44,024 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:47:44,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-02-24 00:47:44,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=461, Unknown=8, NotChecked=90, Total=650 [2022-02-24 00:47:44,025 INFO L87 Difference]: Start difference. First operand 3941 states and 5494 transitions. Second operand has 26 states, 26 states have (on average 13.26923076923077) internal successors, (345), 25 states have internal predecessors, (345), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:47:46,230 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 [] [2022-02-24 00:47:48,259 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:47:50,284 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:47:52,152 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:47:54,646 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:47:56,672 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:47:58,369 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:48:02,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:48:02,384 INFO L93 Difference]: Finished difference Result 16414 states and 22605 transitions. [2022-02-24 00:48:02,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-02-24 00:48:02,385 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 13.26923076923077) internal successors, (345), 25 states have internal predecessors, (345), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 257 [2022-02-24 00:48:02,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:48:02,402 INFO L225 Difference]: With dead ends: 16414 [2022-02-24 00:48:02,402 INFO L226 Difference]: Without dead ends: 12387 [2022-02-24 00:48:02,409 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 599 GetRequests, 534 SyntacticMatches, 2 SemanticMatches, 63 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 993 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=730, Invalid=3168, Unknown=16, NotChecked=246, Total=4160 [2022-02-24 00:48:02,410 INFO L933 BasicCegarLoop]: 258 mSDtfsCounter, 2387 mSDsluCounter, 2634 mSDsCounter, 0 mSdLazyCounter, 2706 mSolverCounterSat, 489 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2387 SdHoareTripleChecker+Valid, 2892 SdHoareTripleChecker+Invalid, 6561 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 489 IncrementalHoareTripleChecker+Valid, 2706 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 3362 IncrementalHoareTripleChecker+Unchecked, 17.4s IncrementalHoareTripleChecker+Time [2022-02-24 00:48:02,410 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2387 Valid, 2892 Invalid, 6561 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [489 Valid, 2706 Invalid, 4 Unknown, 3362 Unchecked, 17.4s Time] [2022-02-24 00:48:02,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12387 states. [2022-02-24 00:48:02,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12387 to 8273. [2022-02-24 00:48:02,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8273 states, 8268 states have (on average 1.4021528785679729) internal successors, (11593), 8268 states have internal predecessors, (11593), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:48:02,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8273 states to 8273 states and 11597 transitions. [2022-02-24 00:48:02,644 INFO L78 Accepts]: Start accepts. Automaton has 8273 states and 11597 transitions. Word has length 257 [2022-02-24 00:48:02,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:48:02,644 INFO L470 AbstractCegarLoop]: Abstraction has 8273 states and 11597 transitions. [2022-02-24 00:48:02,644 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 13.26923076923077) internal successors, (345), 25 states have internal predecessors, (345), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:48:02,644 INFO L276 IsEmpty]: Start isEmpty. Operand 8273 states and 11597 transitions. [2022-02-24 00:48:02,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2022-02-24 00:48:02,654 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:48:02,655 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:48:02,677 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-02-24 00:48:02,869 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-24 00:48:02,869 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:48:02,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:48:02,869 INFO L85 PathProgramCache]: Analyzing trace with hash -1742853838, now seen corresponding path program 1 times [2022-02-24 00:48:02,869 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:48:02,869 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868516449] [2022-02-24 00:48:02,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:48:02,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:48:02,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:48:03,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:48:03,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:48:03,215 INFO L134 CoverageAnalysis]: Checked inductivity of 515 backedges. 368 proven. 20 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2022-02-24 00:48:03,215 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:48:03,215 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868516449] [2022-02-24 00:48:03,215 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [868516449] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-24 00:48:03,215 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1133092287] [2022-02-24 00:48:03,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:48:03,216 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-24 00:48:03,216 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-24 00:48:03,232 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-24 00:48:03,286 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-02-24 00:48:04,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:48:04,201 INFO L263 TraceCheckSpWp]: Trace formula consists of 1468 conjuncts, 35 conjunts are in the unsatisfiable core [2022-02-24 00:48:04,207 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-24 00:48:04,250 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-02-24 00:48:04,250 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-02-24 00:48:04,291 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-02-24 00:48:04,292 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2022-02-24 00:48:04,350 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2022-02-24 00:48:04,408 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-02-24 00:48:04,423 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 19 [2022-02-24 00:48:04,425 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 13 [2022-02-24 00:48:04,438 INFO L356 Elim1Store]: treesize reduction 25, result has 43.2 percent of original size [2022-02-24 00:48:04,438 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 32 [2022-02-24 00:48:04,489 INFO L356 Elim1Store]: treesize reduction 66, result has 30.5 percent of original size [2022-02-24 00:48:04,490 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 42 treesize of output 54 [2022-02-24 00:48:04,538 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 17 [2022-02-24 00:48:04,663 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 11 [2022-02-24 00:48:04,768 INFO L134 CoverageAnalysis]: Checked inductivity of 515 backedges. 363 proven. 68 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2022-02-24 00:48:04,768 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-24 00:48:04,981 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 26 [2022-02-24 00:48:04,982 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 20 [2022-02-24 00:48:06,965 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_arrayElimCell_50 Int) (v_arrayElimCell_51 Int)) (not (= 8656 (select (select (store |c_#memory_int| v_arrayElimCell_50 (store (select |c_#memory_int| v_arrayElimCell_50) (+ 904 v_arrayElimCell_51) 8640)) c_ssl3_accept_~s.base) (+ 72 c_ssl3_accept_~s.offset))))) is different from false [2022-02-24 00:48:07,080 INFO L134 CoverageAnalysis]: Checked inductivity of 515 backedges. 378 proven. 0 refuted. 0 times theorem prover too weak. 137 trivial. 0 not checked. [2022-02-24 00:48:07,081 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1133092287] provided 1 perfect and 1 imperfect interpolant sequences [2022-02-24 00:48:07,081 INFO L191 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-02-24 00:48:07,081 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [11, 10] total 18 [2022-02-24 00:48:07,081 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239978761] [2022-02-24 00:48:07,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:48:07,081 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:48:07,081 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:48:07,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:48:07,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=229, Unknown=1, NotChecked=30, Total=306 [2022-02-24 00:48:07,082 INFO L87 Difference]: Start difference. First operand 8273 states and 11597 transitions. Second operand has 5 states, 5 states have (on average 32.4) internal successors, (162), 5 states have internal predecessors, (162), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:48:09,504 WARN L838 $PredicateComparison]: unable to prove that (and (not (= (select (select |c_#memory_int| c_ssl3_accept_~s.base) (+ 72 c_ssl3_accept_~s.offset)) 8656)) (forall ((v_arrayElimCell_50 Int) (v_arrayElimCell_51 Int)) (not (= 8656 (select (select (store |c_#memory_int| v_arrayElimCell_50 (store (select |c_#memory_int| v_arrayElimCell_50) (+ 904 v_arrayElimCell_51) 8640)) c_ssl3_accept_~s.base) (+ 72 c_ssl3_accept_~s.offset)))))) is different from false [2022-02-24 00:48:09,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:48:09,718 INFO L93 Difference]: Finished difference Result 17365 states and 24314 transitions. [2022-02-24 00:48:09,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:48:09,718 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.4) internal successors, (162), 5 states have internal predecessors, (162), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 260 [2022-02-24 00:48:09,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:48:09,729 INFO L225 Difference]: With dead ends: 17365 [2022-02-24 00:48:09,729 INFO L226 Difference]: Without dead ends: 9120 [2022-02-24 00:48:09,739 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 536 GetRequests, 518 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=53, Invalid=259, Unknown=2, NotChecked=66, Total=380 [2022-02-24 00:48:09,740 INFO L933 BasicCegarLoop]: 179 mSDtfsCounter, 95 mSDsluCounter, 390 mSDsCounter, 0 mSdLazyCounter, 245 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 569 SdHoareTripleChecker+Invalid, 548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 261 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-02-24 00:48:09,740 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [95 Valid, 569 Invalid, 548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 245 Invalid, 0 Unknown, 261 Unchecked, 0.4s Time] [2022-02-24 00:48:09,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9120 states. [2022-02-24 00:48:09,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9120 to 8189. [2022-02-24 00:48:09,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8189 states, 8184 states have (on average 1.3989491691104594) internal successors, (11449), 8184 states have internal predecessors, (11449), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:48:09,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8189 states to 8189 states and 11453 transitions. [2022-02-24 00:48:09,970 INFO L78 Accepts]: Start accepts. Automaton has 8189 states and 11453 transitions. Word has length 260 [2022-02-24 00:48:09,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:48:09,971 INFO L470 AbstractCegarLoop]: Abstraction has 8189 states and 11453 transitions. [2022-02-24 00:48:09,971 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.4) internal successors, (162), 5 states have internal predecessors, (162), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:48:09,971 INFO L276 IsEmpty]: Start isEmpty. Operand 8189 states and 11453 transitions. [2022-02-24 00:48:09,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2022-02-24 00:48:09,980 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:48:09,980 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 6, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:48:10,002 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-02-24 00:48:10,184 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47 [2022-02-24 00:48:10,185 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:48:10,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:48:10,185 INFO L85 PathProgramCache]: Analyzing trace with hash 521984521, now seen corresponding path program 1 times [2022-02-24 00:48:10,185 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:48:10,185 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430223034] [2022-02-24 00:48:10,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:48:10,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:48:10,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:48:10,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:48:10,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:48:10,348 INFO L134 CoverageAnalysis]: Checked inductivity of 652 backedges. 386 proven. 0 refuted. 0 times theorem prover too weak. 266 trivial. 0 not checked. [2022-02-24 00:48:10,348 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:48:10,348 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430223034] [2022-02-24 00:48:10,348 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [430223034] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:48:10,348 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:48:10,349 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:48:10,349 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207240318] [2022-02-24 00:48:10,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:48:10,349 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:48:10,349 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:48:10,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:48:10,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:48:10,349 INFO L87 Difference]: Start difference. First operand 8189 states and 11453 transitions. Second operand has 5 states, 5 states have (on average 30.0) internal successors, (150), 4 states have internal predecessors, (150), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:48:13,332 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:48:15,356 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:48:17,198 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:48:17,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:48:17,829 INFO L93 Difference]: Finished difference Result 17096 states and 23875 transitions. [2022-02-24 00:48:17,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:48:17,829 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.0) internal successors, (150), 4 states have internal predecessors, (150), 1 states have call successors, (3), 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 260 [2022-02-24 00:48:17,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:48:17,838 INFO L225 Difference]: With dead ends: 17096 [2022-02-24 00:48:17,838 INFO L226 Difference]: Without dead ends: 8935 [2022-02-24 00:48:17,845 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:48:17,845 INFO L933 BasicCegarLoop]: 138 mSDtfsCounter, 113 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 466 mSolverCounterSat, 54 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 522 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 466 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2022-02-24 00:48:17,847 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [113 Valid, 384 Invalid, 522 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 466 Invalid, 2 Unknown, 0 Unchecked, 7.3s Time] [2022-02-24 00:48:17,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8935 states. [2022-02-24 00:48:18,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8935 to 8189. [2022-02-24 00:48:18,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8189 states, 8184 states have (on average 1.3776881720430108) internal successors, (11275), 8184 states have internal predecessors, (11275), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:48:18,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8189 states to 8189 states and 11279 transitions. [2022-02-24 00:48:18,054 INFO L78 Accepts]: Start accepts. Automaton has 8189 states and 11279 transitions. Word has length 260 [2022-02-24 00:48:18,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:48:18,054 INFO L470 AbstractCegarLoop]: Abstraction has 8189 states and 11279 transitions. [2022-02-24 00:48:18,054 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.0) internal successors, (150), 4 states have internal predecessors, (150), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:48:18,054 INFO L276 IsEmpty]: Start isEmpty. Operand 8189 states and 11279 transitions. [2022-02-24 00:48:18,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2022-02-24 00:48:18,065 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:48:18,065 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:48:18,065 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-02-24 00:48:18,065 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:48:18,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:48:18,065 INFO L85 PathProgramCache]: Analyzing trace with hash 564437000, now seen corresponding path program 1 times [2022-02-24 00:48:18,065 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:48:18,065 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324754278] [2022-02-24 00:48:18,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:48:18,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:48:18,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:48:18,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:48:18,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:48:18,275 INFO L134 CoverageAnalysis]: Checked inductivity of 517 backedges. 377 proven. 0 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2022-02-24 00:48:18,275 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:48:18,275 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324754278] [2022-02-24 00:48:18,276 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [324754278] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:48:18,276 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:48:18,276 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-02-24 00:48:18,276 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380239431] [2022-02-24 00:48:18,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:48:18,276 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-02-24 00:48:18,276 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:48:18,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-02-24 00:48:18,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-02-24 00:48:18,277 INFO L87 Difference]: Start difference. First operand 8189 states and 11279 transitions. Second operand has 8 states, 8 states have (on average 20.125) internal successors, (161), 7 states have internal predecessors, (161), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:48:20,094 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:48:22,120 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:48:24,144 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:48:25,257 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:48:26,684 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:48:28,708 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:48:29,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:48:29,841 INFO L93 Difference]: Finished difference Result 18957 states and 25981 transitions. [2022-02-24 00:48:29,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-02-24 00:48:29,842 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 20.125) internal successors, (161), 7 states have internal predecessors, (161), 1 states have call successors, (3), 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 261 [2022-02-24 00:48:29,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:48:29,852 INFO L225 Difference]: With dead ends: 18957 [2022-02-24 00:48:29,852 INFO L226 Difference]: Without dead ends: 10796 [2022-02-24 00:48:29,861 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2022-02-24 00:48:29,861 INFO L933 BasicCegarLoop]: 274 mSDtfsCounter, 234 mSDsluCounter, 725 mSDsCounter, 0 mSdLazyCounter, 1091 mSolverCounterSat, 41 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 234 SdHoareTripleChecker+Valid, 999 SdHoareTripleChecker+Invalid, 1135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 1091 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.3s IncrementalHoareTripleChecker+Time [2022-02-24 00:48:29,862 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [234 Valid, 999 Invalid, 1135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 1091 Invalid, 3 Unknown, 0 Unchecked, 11.3s Time] [2022-02-24 00:48:29,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10796 states. [2022-02-24 00:48:30,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10796 to 7805. [2022-02-24 00:48:30,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7805 states, 7800 states have (on average 1.379102564102564) internal successors, (10757), 7800 states have internal predecessors, (10757), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:48:30,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7805 states to 7805 states and 10761 transitions. [2022-02-24 00:48:30,073 INFO L78 Accepts]: Start accepts. Automaton has 7805 states and 10761 transitions. Word has length 261 [2022-02-24 00:48:30,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:48:30,073 INFO L470 AbstractCegarLoop]: Abstraction has 7805 states and 10761 transitions. [2022-02-24 00:48:30,074 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 20.125) internal successors, (161), 7 states have internal predecessors, (161), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:48:30,074 INFO L276 IsEmpty]: Start isEmpty. Operand 7805 states and 10761 transitions. [2022-02-24 00:48:30,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2022-02-24 00:48:30,080 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:48:30,080 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:48:30,080 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-02-24 00:48:30,081 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:48:30,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:48:30,081 INFO L85 PathProgramCache]: Analyzing trace with hash -1591691952, now seen corresponding path program 1 times [2022-02-24 00:48:30,081 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:48:30,081 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482091171] [2022-02-24 00:48:30,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:48:30,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:48:30,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:48:30,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:48:30,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:48:30,218 INFO L134 CoverageAnalysis]: Checked inductivity of 671 backedges. 403 proven. 0 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2022-02-24 00:48:30,218 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:48:30,218 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482091171] [2022-02-24 00:48:30,218 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [482091171] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:48:30,218 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:48:30,218 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:48:30,218 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782139476] [2022-02-24 00:48:30,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:48:30,219 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:48:30,219 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:48:30,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:48:30,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:48:30,219 INFO L87 Difference]: Start difference. First operand 7805 states and 10761 transitions. Second operand has 5 states, 5 states have (on average 30.6) internal successors, (153), 4 states have internal predecessors, (153), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:48:31,423 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:48:33,446 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:48:35,879 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 [] [2022-02-24 00:48:36,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:48:36,499 INFO L93 Difference]: Finished difference Result 15658 states and 21573 transitions. [2022-02-24 00:48:36,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:48:36,500 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.6) internal successors, (153), 4 states have internal predecessors, (153), 1 states have call successors, (3), 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 265 [2022-02-24 00:48:36,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:48:36,509 INFO L225 Difference]: With dead ends: 15658 [2022-02-24 00:48:36,509 INFO L226 Difference]: Without dead ends: 7881 [2022-02-24 00:48:36,516 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:48:36,531 INFO L933 BasicCegarLoop]: 237 mSDtfsCounter, 42 mSDsluCounter, 349 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 586 SdHoareTripleChecker+Invalid, 489 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-02-24 00:48:36,531 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [42 Valid, 586 Invalid, 489 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 483 Invalid, 1 Unknown, 0 Unchecked, 6.1s Time] [2022-02-24 00:48:36,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7881 states. [2022-02-24 00:48:36,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7881 to 7805. [2022-02-24 00:48:36,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7805 states, 7800 states have (on average 1.3784615384615384) internal successors, (10752), 7800 states have internal predecessors, (10752), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:48:36,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7805 states to 7805 states and 10756 transitions. [2022-02-24 00:48:36,735 INFO L78 Accepts]: Start accepts. Automaton has 7805 states and 10756 transitions. Word has length 265 [2022-02-24 00:48:36,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:48:36,735 INFO L470 AbstractCegarLoop]: Abstraction has 7805 states and 10756 transitions. [2022-02-24 00:48:36,735 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.6) internal successors, (153), 4 states have internal predecessors, (153), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:48:36,736 INFO L276 IsEmpty]: Start isEmpty. Operand 7805 states and 10756 transitions. [2022-02-24 00:48:36,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2022-02-24 00:48:36,743 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:48:36,743 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:48:36,743 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-02-24 00:48:36,743 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:48:36,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:48:36,744 INFO L85 PathProgramCache]: Analyzing trace with hash -860613067, now seen corresponding path program 1 times [2022-02-24 00:48:36,744 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:48:36,744 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561322592] [2022-02-24 00:48:36,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:48:36,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:48:36,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:48:37,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:48:37,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:48:37,009 INFO L134 CoverageAnalysis]: Checked inductivity of 673 backedges. 405 proven. 0 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2022-02-24 00:48:37,009 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:48:37,009 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1561322592] [2022-02-24 00:48:37,009 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1561322592] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:48:37,009 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:48:37,009 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:48:37,009 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162906200] [2022-02-24 00:48:37,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:48:37,010 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:48:37,010 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:48:37,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:48:37,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:48:37,011 INFO L87 Difference]: Start difference. First operand 7805 states and 10756 transitions. Second operand has 5 states, 5 states have (on average 30.8) internal successors, (154), 4 states have internal predecessors, (154), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:48:38,843 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:48:40,874 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:48:42,898 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:48:44,920 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:48:45,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:48:45,479 INFO L93 Difference]: Finished difference Result 15648 states and 21553 transitions. [2022-02-24 00:48:45,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:48:45,480 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.8) internal successors, (154), 4 states have internal predecessors, (154), 1 states have call successors, (3), 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 266 [2022-02-24 00:48:45,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:48:45,487 INFO L225 Difference]: With dead ends: 15648 [2022-02-24 00:48:45,488 INFO L226 Difference]: Without dead ends: 7871 [2022-02-24 00:48:45,492 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:48:45,493 INFO L933 BasicCegarLoop]: 235 mSDtfsCounter, 39 mSDsluCounter, 347 mSDsCounter, 0 mSdLazyCounter, 475 mSolverCounterSat, 5 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 582 SdHoareTripleChecker+Invalid, 483 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 475 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2022-02-24 00:48:45,493 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [39 Valid, 582 Invalid, 483 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 475 Invalid, 3 Unknown, 0 Unchecked, 8.3s Time] [2022-02-24 00:48:45,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7871 states. [2022-02-24 00:48:45,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7871 to 7805. [2022-02-24 00:48:45,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7805 states, 7800 states have (on average 1.3778205128205128) internal successors, (10747), 7800 states have internal predecessors, (10747), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:48:45,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7805 states to 7805 states and 10751 transitions. [2022-02-24 00:48:45,698 INFO L78 Accepts]: Start accepts. Automaton has 7805 states and 10751 transitions. Word has length 266 [2022-02-24 00:48:45,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:48:45,698 INFO L470 AbstractCegarLoop]: Abstraction has 7805 states and 10751 transitions. [2022-02-24 00:48:45,698 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.8) internal successors, (154), 4 states have internal predecessors, (154), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:48:45,699 INFO L276 IsEmpty]: Start isEmpty. Operand 7805 states and 10751 transitions. [2022-02-24 00:48:45,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2022-02-24 00:48:45,705 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:48:45,705 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 5, 5, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:48:45,705 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-02-24 00:48:45,706 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:48:45,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:48:45,706 INFO L85 PathProgramCache]: Analyzing trace with hash -776575261, now seen corresponding path program 1 times [2022-02-24 00:48:45,706 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:48:45,706 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973737409] [2022-02-24 00:48:45,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:48:45,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:48:45,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:48:45,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:48:45,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:48:45,948 INFO L134 CoverageAnalysis]: Checked inductivity of 685 backedges. 449 proven. 0 refuted. 0 times theorem prover too weak. 236 trivial. 0 not checked. [2022-02-24 00:48:45,948 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:48:45,948 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [973737409] [2022-02-24 00:48:45,948 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [973737409] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:48:45,948 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:48:45,948 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-24 00:48:45,948 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299767658] [2022-02-24 00:48:45,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:48:45,948 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-24 00:48:45,948 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:48:45,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-24 00:48:45,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:48:45,949 INFO L87 Difference]: Start difference. First operand 7805 states and 10751 transitions. Second operand has 6 states, 6 states have (on average 26.166666666666668) internal successors, (157), 5 states have internal predecessors, (157), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:48:47,957 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:48:48,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:48:48,613 INFO L93 Difference]: Finished difference Result 15766 states and 21698 transitions. [2022-02-24 00:48:48,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-24 00:48:48,614 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 26.166666666666668) internal successors, (157), 5 states have internal predecessors, (157), 1 states have call successors, (3), 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 281 [2022-02-24 00:48:48,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:48:48,623 INFO L225 Difference]: With dead ends: 15766 [2022-02-24 00:48:48,623 INFO L226 Difference]: Without dead ends: 7989 [2022-02-24 00:48:48,631 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-02-24 00:48:48,631 INFO L933 BasicCegarLoop]: 227 mSDtfsCounter, 25 mSDsluCounter, 471 mSDsCounter, 0 mSdLazyCounter, 577 mSolverCounterSat, 14 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 698 SdHoareTripleChecker+Invalid, 592 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 577 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-02-24 00:48:48,632 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [25 Valid, 698 Invalid, 592 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 577 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-02-24 00:48:48,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7989 states. [2022-02-24 00:48:48,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7989 to 7819. [2022-02-24 00:48:48,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7819 states, 7814 states have (on average 1.3771435884310212) internal successors, (10761), 7814 states have internal predecessors, (10761), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:48:48,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7819 states to 7819 states and 10765 transitions. [2022-02-24 00:48:48,850 INFO L78 Accepts]: Start accepts. Automaton has 7819 states and 10765 transitions. Word has length 281 [2022-02-24 00:48:48,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:48:48,850 INFO L470 AbstractCegarLoop]: Abstraction has 7819 states and 10765 transitions. [2022-02-24 00:48:48,850 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 26.166666666666668) internal successors, (157), 5 states have internal predecessors, (157), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:48:48,850 INFO L276 IsEmpty]: Start isEmpty. Operand 7819 states and 10765 transitions. [2022-02-24 00:48:48,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2022-02-24 00:48:48,857 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:48:48,858 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:48:48,858 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-02-24 00:48:48,858 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:48:48,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:48:48,858 INFO L85 PathProgramCache]: Analyzing trace with hash -607752822, now seen corresponding path program 1 times [2022-02-24 00:48:48,858 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:48:48,858 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263367630] [2022-02-24 00:48:48,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:48:48,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:48:49,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:48:49,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:48:49,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:48:49,159 INFO L134 CoverageAnalysis]: Checked inductivity of 678 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 678 trivial. 0 not checked. [2022-02-24 00:48:49,160 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:48:49,160 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263367630] [2022-02-24 00:48:49,160 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1263367630] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:48:49,160 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:48:49,160 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-02-24 00:48:49,160 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492232828] [2022-02-24 00:48:49,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:48:49,160 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-24 00:48:49,160 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:48:49,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-24 00:48:49,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-02-24 00:48:49,161 INFO L87 Difference]: Start difference. First operand 7819 states and 10765 transitions. Second operand has 7 states, 6 states have (on average 13.166666666666666) internal successors, (79), 5 states have internal predecessors, (79), 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) [2022-02-24 00:48:50,949 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:48:52,978 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:48:55,281 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:48:57,307 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:48:58,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:48:58,254 INFO L93 Difference]: Finished difference Result 15631 states and 21522 transitions. [2022-02-24 00:48:58,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-24 00:48:58,255 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 13.166666666666666) internal successors, (79), 5 states have internal predecessors, (79), 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 285 [2022-02-24 00:48:58,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:48:58,264 INFO L225 Difference]: With dead ends: 15631 [2022-02-24 00:48:58,264 INFO L226 Difference]: Without dead ends: 7819 [2022-02-24 00:48:58,270 INFO L932 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 [2022-02-24 00:48:58,271 INFO L933 BasicCegarLoop]: 209 mSDtfsCounter, 7 mSDsluCounter, 633 mSDsCounter, 0 mSdLazyCounter, 442 mSolverCounterSat, 4 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 842 SdHoareTripleChecker+Invalid, 448 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 442 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.9s IncrementalHoareTripleChecker+Time [2022-02-24 00:48:58,271 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 842 Invalid, 448 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 442 Invalid, 2 Unknown, 0 Unchecked, 8.9s Time] [2022-02-24 00:48:58,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7819 states. [2022-02-24 00:48:58,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7819 to 7819. [2022-02-24 00:48:58,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7819 states, 7814 states have (on average 1.3770156130023035) internal successors, (10760), 7814 states have internal predecessors, (10760), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:48:58,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7819 states to 7819 states and 10764 transitions. [2022-02-24 00:48:58,446 INFO L78 Accepts]: Start accepts. Automaton has 7819 states and 10764 transitions. Word has length 285 [2022-02-24 00:48:58,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:48:58,446 INFO L470 AbstractCegarLoop]: Abstraction has 7819 states and 10764 transitions. [2022-02-24 00:48:58,446 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 13.166666666666666) internal successors, (79), 5 states have internal predecessors, (79), 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) [2022-02-24 00:48:58,446 INFO L276 IsEmpty]: Start isEmpty. Operand 7819 states and 10764 transitions. [2022-02-24 00:48:58,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2022-02-24 00:48:58,453 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:48:58,454 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:48:58,454 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-02-24 00:48:58,454 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:48:58,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:48:58,454 INFO L85 PathProgramCache]: Analyzing trace with hash 1221453515, now seen corresponding path program 1 times [2022-02-24 00:48:58,454 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:48:58,454 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920354281] [2022-02-24 00:48:58,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:48:58,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:48:58,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:48:59,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:48:59,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:48:59,222 INFO L134 CoverageAnalysis]: Checked inductivity of 678 backedges. 28 proven. 337 refuted. 0 times theorem prover too weak. 313 trivial. 0 not checked. [2022-02-24 00:48:59,222 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:48:59,222 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1920354281] [2022-02-24 00:48:59,223 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1920354281] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-24 00:48:59,223 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [365643883] [2022-02-24 00:48:59,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:48:59,223 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-24 00:48:59,223 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-24 00:48:59,240 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-24 00:48:59,243 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-02-24 00:49:00,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:49:00,360 INFO L263 TraceCheckSpWp]: Trace formula consists of 1554 conjuncts, 203 conjunts are in the unsatisfiable core [2022-02-24 00:49:00,373 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-24 00:49:00,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:49:00,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:49:00,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:49:00,794 INFO L356 Elim1Store]: treesize reduction 1040, result has 8.0 percent of original size [2022-02-24 00:49:00,795 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 10 case distinctions, treesize of input 22970589 treesize of output 4993130 [2022-02-24 00:49:02,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:49:02,350 INFO L190 IndexEqualityManager]: detected not equals via solver