/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/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/openssl/s3_srvr.blast.10.i.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-b030c9e [2022-03-20 02:56:01,989 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-20 02:56:01,990 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-20 02:56:02,012 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-20 02:56:02,012 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-20 02:56:02,013 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-20 02:56:02,014 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-20 02:56:02,015 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-20 02:56:02,016 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-20 02:56:02,017 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-20 02:56:02,017 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-20 02:56:02,018 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-20 02:56:02,018 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-20 02:56:02,019 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-20 02:56:02,020 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-20 02:56:02,020 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-20 02:56:02,021 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-20 02:56:02,021 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-20 02:56:02,022 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-20 02:56:02,023 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-20 02:56:02,024 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-03-20 02:56:02,025 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-20 02:56:02,025 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-20 02:56:02,026 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-20 02:56:02,027 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-20 02:56:02,028 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-03-20 02:56:02,029 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-03-20 02:56:02,029 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-03-20 02:56:02,029 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-03-20 02:56:02,029 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-03-20 02:56:02,030 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2022-03-20 02:56:02,033 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-20 02:56:02,034 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-20 02:56:02,034 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-20 02:56:02,035 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2022-03-20 02:56:02,051 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-20 02:56:02,051 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-20 02:56:02,051 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-20 02:56:02,052 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-20 02:56:02,052 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-20 02:56:02,052 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-20 02:56:02,053 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-20 02:56:02,053 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-20 02:56:02,053 INFO L138 SettingsManager]: * Use SBE=true [2022-03-20 02:56:02,053 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-20 02:56:02,053 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-20 02:56:02,053 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-20 02:56:02,053 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-20 02:56:02,053 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-20 02:56:02,053 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-20 02:56:02,053 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-20 02:56:02,054 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-20 02:56:02,054 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-20 02:56:02,054 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-20 02:56:02,054 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-20 02:56:02,054 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-20 02:56:02,054 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-20 02:56:02,054 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-20 02:56:02,054 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-20 02:56:02,054 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-20 02:56:02,054 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-20 02:56:02,055 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-20 02:56:02,055 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-20 02:56:02,055 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-20 02:56:02,055 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-20 02:56:02,055 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-20 02:56:02,055 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-03-20 02:56:02,055 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-20 02:56:02,055 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-03-20 02:56:02,211 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-20 02:56:02,225 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-20 02:56:02,227 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-20 02:56:02,228 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-20 02:56:02,228 INFO L275 PluginConnector]: CDTParser initialized [2022-03-20 02:56:02,229 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl/s3_srvr.blast.10.i.cil-1.c [2022-03-20 02:56:02,275 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/861619327/7128ddc9f76d4361a2d6b729c4b3b10b/FLAGf8d786a93 [2022-03-20 02:56:02,744 INFO L306 CDTParser]: Found 1 translation units. [2022-03-20 02:56:02,745 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.10.i.cil-1.c [2022-03-20 02:56:02,760 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/861619327/7128ddc9f76d4361a2d6b729c4b3b10b/FLAGf8d786a93 [2022-03-20 02:56:03,249 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/861619327/7128ddc9f76d4361a2d6b729c4b3b10b [2022-03-20 02:56:03,251 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-20 02:56:03,252 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-20 02:56:03,268 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-20 02:56:03,268 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-20 02:56:03,271 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-20 02:56:03,271 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.03 02:56:03" (1/1) ... [2022-03-20 02:56:03,272 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@381f37df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 02:56:03, skipping insertion in model container [2022-03-20 02:56:03,272 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.03 02:56:03" (1/1) ... [2022-03-20 02:56:03,277 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-20 02:56:03,319 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-20 02:56:03,695 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.10.i.cil-1.c[73581,73594] [2022-03-20 02:56:03,704 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-20 02:56:03,720 INFO L203 MainTranslator]: Completed pre-run [2022-03-20 02:56:03,858 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.10.i.cil-1.c[73581,73594] [2022-03-20 02:56:03,860 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-20 02:56:03,870 INFO L208 MainTranslator]: Completed translation [2022-03-20 02:56:03,870 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 02:56:03 WrapperNode [2022-03-20 02:56:03,870 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-20 02:56:03,871 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-20 02:56:03,871 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-20 02:56:03,871 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-20 02:56:03,892 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 02:56:03" (1/1) ... [2022-03-20 02:56:03,893 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 02:56:03" (1/1) ... [2022-03-20 02:56:03,937 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 02:56:03" (1/1) ... [2022-03-20 02:56:03,937 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 02:56:03" (1/1) ... [2022-03-20 02:56:03,992 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 02:56:03" (1/1) ... [2022-03-20 02:56:03,998 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 02:56:03" (1/1) ... [2022-03-20 02:56:04,006 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 02:56:03" (1/1) ... [2022-03-20 02:56:04,012 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-20 02:56:04,013 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-20 02:56:04,013 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-20 02:56:04,013 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-20 02:56:04,018 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 02:56:03" (1/1) ... [2022-03-20 02:56:04,025 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-20 02:56:04,034 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 02:56:04,081 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-03-20 02:56:04,105 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-03-20 02:56:04,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-03-20 02:56:04,140 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-20 02:56:04,140 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-03-20 02:56:04,140 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_server_method [2022-03-20 02:56:04,140 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_server_method [2022-03-20 02:56:04,140 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-03-20 02:56:04,140 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-03-20 02:56:04,140 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-03-20 02:56:04,140 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-03-20 02:56:04,140 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-03-20 02:56:04,140 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-03-20 02:56:04,141 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-03-20 02:56:04,141 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-03-20 02:56:04,141 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-20 02:56:04,141 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-03-20 02:56:04,141 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-03-20 02:56:04,141 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-03-20 02:56:04,141 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-03-20 02:56:04,141 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-03-20 02:56:04,141 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-03-20 02:56:04,141 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_server_method [2022-03-20 02:56:04,141 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-03-20 02:56:04,141 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-03-20 02:56:04,141 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_server_method [2022-03-20 02:56:04,141 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-03-20 02:56:04,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-03-20 02:56:04,142 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-03-20 02:56:04,142 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-03-20 02:56:04,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-20 02:56:04,142 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-03-20 02:56:04,142 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-20 02:56:04,142 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-03-20 02:56:04,142 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-03-20 02:56:04,142 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-03-20 02:56:04,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-20 02:56:04,142 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-20 02:56:04,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-03-20 02:56:04,142 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-03-20 02:56:04,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-03-20 02:56:04,142 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-03-20 02:56:04,143 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-20 02:56:04,260 INFO L234 CfgBuilder]: Building ICFG [2022-03-20 02:56:04,261 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-20 02:56:05,009 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-20 02:56:05,430 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2022-03-20 02:56:05,431 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2022-03-20 02:56:05,439 INFO L275 CfgBuilder]: Performing block encoding [2022-03-20 02:56:05,445 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-20 02:56:05,445 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-03-20 02:56:05,455 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 02:56:05 BoogieIcfgContainer [2022-03-20 02:56:05,456 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-20 02:56:05,457 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-20 02:56:05,457 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-20 02:56:05,460 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-20 02:56:05,460 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.03 02:56:03" (1/3) ... [2022-03-20 02:56:05,460 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cf3d3c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.03 02:56:05, skipping insertion in model container [2022-03-20 02:56:05,460 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 02:56:03" (2/3) ... [2022-03-20 02:56:05,461 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cf3d3c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.03 02:56:05, skipping insertion in model container [2022-03-20 02:56:05,461 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 02:56:05" (3/3) ... [2022-03-20 02:56:05,462 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr.blast.10.i.cil-1.c [2022-03-20 02:56:05,465 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-20 02:56:05,465 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-20 02:56:05,513 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-20 02:56:05,520 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP [2022-03-20 02:56:05,521 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-03-20 02:56:05,547 INFO L276 IsEmpty]: Start isEmpty. Operand has 156 states, 148 states have (on average 1.7027027027027026) internal successors, (252), 149 states have internal predecessors, (252), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-03-20 02:56:05,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-03-20 02:56:05,555 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:56:05,556 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:56:05,556 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:56:05,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:56:05,560 INFO L85 PathProgramCache]: Analyzing trace with hash -159635105, now seen corresponding path program 1 times [2022-03-20 02:56:05,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:56:05,567 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072172526] [2022-03-20 02:56:05,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:56:05,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:56:05,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:56:06,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:56:06,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:56:06,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 02:56:06,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:56:06,054 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072172526] [2022-03-20 02:56:06,054 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2072172526] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:56:06,054 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:56:06,054 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:56:06,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825414387] [2022-03-20 02:56:06,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:56:06,060 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:56:06,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:56:06,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:56:06,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:56:06,088 INFO L87 Difference]: Start difference. First operand has 156 states, 148 states have (on average 1.7027027027027026) internal successors, (252), 149 states have internal predecessors, (252), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:56:07,702 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:56:09,028 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 [] [2022-03-20 02:56:10,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:56:10,824 INFO L93 Difference]: Finished difference Result 424 states and 714 transitions. [2022-03-20 02:56:10,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:56:10,826 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 [2022-03-20 02:56:10,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:56:10,842 INFO L225 Difference]: With dead ends: 424 [2022-03-20 02:56:10,842 INFO L226 Difference]: Without dead ends: 257 [2022-03-20 02:56:10,845 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:56:10,847 INFO L913 BasicCegarLoop]: 154 mSDtfsCounter, 150 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 532 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 451 SdHoareTripleChecker+Invalid, 595 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 532 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-03-20 02:56:10,847 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [150 Valid, 451 Invalid, 595 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 532 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2022-03-20 02:56:10,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2022-03-20 02:56:10,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 180. [2022-03-20 02:56:10,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 175 states have (on average 1.6) internal successors, (280), 175 states have internal predecessors, (280), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:56:10,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 284 transitions. [2022-03-20 02:56:10,909 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 284 transitions. Word has length 49 [2022-03-20 02:56:10,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:56:10,909 INFO L478 AbstractCegarLoop]: Abstraction has 180 states and 284 transitions. [2022-03-20 02:56:10,910 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:56:10,910 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 284 transitions. [2022-03-20 02:56:10,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-03-20 02:56:10,912 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:56:10,912 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:56:10,912 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-20 02:56:10,912 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:56:10,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:56:10,913 INFO L85 PathProgramCache]: Analyzing trace with hash -855203969, now seen corresponding path program 1 times [2022-03-20 02:56:10,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:56:10,913 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [332177016] [2022-03-20 02:56:10,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:56:10,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:56:10,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:56:11,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:56:11,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:56:11,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 02:56:11,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:56:11,093 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [332177016] [2022-03-20 02:56:11,095 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [332177016] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:56:11,095 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:56:11,099 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:56:11,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082260052] [2022-03-20 02:56:11,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:56:11,101 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:56:11,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:56:11,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:56:11,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:56:11,102 INFO L87 Difference]: Start difference. First operand 180 states and 284 transitions. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:56:13,661 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 [] [2022-03-20 02:56:15,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:56:15,245 INFO L93 Difference]: Finished difference Result 461 states and 729 transitions. [2022-03-20 02:56:15,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:56:15,246 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 50 [2022-03-20 02:56:15,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:56:15,248 INFO L225 Difference]: With dead ends: 461 [2022-03-20 02:56:15,248 INFO L226 Difference]: Without dead ends: 296 [2022-03-20 02:56:15,249 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:56:15,250 INFO L913 BasicCegarLoop]: 123 mSDtfsCounter, 117 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 350 SdHoareTripleChecker+Invalid, 545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-03-20 02:56:15,250 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [117 Valid, 350 Invalid, 545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 483 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-03-20 02:56:15,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2022-03-20 02:56:15,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 220. [2022-03-20 02:56:15,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 215 states have (on average 1.6465116279069767) internal successors, (354), 215 states have internal predecessors, (354), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:56:15,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 358 transitions. [2022-03-20 02:56:15,262 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 358 transitions. Word has length 50 [2022-03-20 02:56:15,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:56:15,263 INFO L478 AbstractCegarLoop]: Abstraction has 220 states and 358 transitions. [2022-03-20 02:56:15,263 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:56:15,263 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 358 transitions. [2022-03-20 02:56:15,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-03-20 02:56:15,265 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:56:15,265 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 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] [2022-03-20 02:56:15,265 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-20 02:56:15,266 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:56:15,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:56:15,266 INFO L85 PathProgramCache]: Analyzing trace with hash 1284051237, now seen corresponding path program 1 times [2022-03-20 02:56:15,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:56:15,266 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153470509] [2022-03-20 02:56:15,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:56:15,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:56:15,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:56:15,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:56:15,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:56:15,439 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-03-20 02:56:15,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:56:15,440 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153470509] [2022-03-20 02:56:15,440 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1153470509] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:56:15,440 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:56:15,440 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:56:15,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433119587] [2022-03-20 02:56:15,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:56:15,441 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:56:15,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:56:15,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:56:15,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:56:15,442 INFO L87 Difference]: Start difference. First operand 220 states and 358 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:56:17,112 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:56:18,940 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:56:20,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:56:20,141 INFO L93 Difference]: Finished difference Result 453 states and 738 transitions. [2022-03-20 02:56:20,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:56:20,141 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 78 [2022-03-20 02:56:20,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:56:20,143 INFO L225 Difference]: With dead ends: 453 [2022-03-20 02:56:20,143 INFO L226 Difference]: Without dead ends: 248 [2022-03-20 02:56:20,144 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:56:20,144 INFO L913 BasicCegarLoop]: 182 mSDtfsCounter, 22 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 362 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 469 SdHoareTripleChecker+Invalid, 372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-03-20 02:56:20,145 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 469 Invalid, 372 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 362 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2022-03-20 02:56:20,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2022-03-20 02:56:20,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 231. [2022-03-20 02:56:20,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 226 states have (on average 1.6504424778761062) internal successors, (373), 226 states have internal predecessors, (373), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:56:20,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 377 transitions. [2022-03-20 02:56:20,156 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 377 transitions. Word has length 78 [2022-03-20 02:56:20,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:56:20,156 INFO L478 AbstractCegarLoop]: Abstraction has 231 states and 377 transitions. [2022-03-20 02:56:20,156 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:56:20,156 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 377 transitions. [2022-03-20 02:56:20,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-20 02:56:20,158 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:56:20,158 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 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] [2022-03-20 02:56:20,158 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-20 02:56:20,159 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:56:20,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:56:20,159 INFO L85 PathProgramCache]: Analyzing trace with hash 1385756996, now seen corresponding path program 1 times [2022-03-20 02:56:20,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:56:20,159 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096452020] [2022-03-20 02:56:20,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:56:20,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:56:20,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:56:20,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:56:20,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:56:20,307 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-03-20 02:56:20,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:56:20,309 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096452020] [2022-03-20 02:56:20,310 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2096452020] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:56:20,310 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:56:20,310 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:56:20,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7064831] [2022-03-20 02:56:20,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:56:20,311 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:56:20,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:56:20,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:56:20,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:56:20,312 INFO L87 Difference]: Start difference. First operand 231 states and 377 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:56:22,131 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:56:24,164 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:56:25,267 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:56:26,333 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:56:27,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:56:27,024 INFO L93 Difference]: Finished difference Result 552 states and 894 transitions. [2022-03-20 02:56:27,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:56:27,024 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 91 [2022-03-20 02:56:27,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:56:27,026 INFO L225 Difference]: With dead ends: 552 [2022-03-20 02:56:27,026 INFO L226 Difference]: Without dead ends: 347 [2022-03-20 02:56:27,026 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:56:27,027 INFO L913 BasicCegarLoop]: 252 mSDtfsCounter, 140 mSDsluCounter, 356 mSDsCounter, 0 mSdLazyCounter, 614 mSolverCounterSat, 46 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 608 SdHoareTripleChecker+Invalid, 661 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 614 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2022-03-20 02:56:27,027 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [140 Valid, 608 Invalid, 661 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 614 Invalid, 1 Unknown, 0 Unchecked, 6.7s Time] [2022-03-20 02:56:27,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2022-03-20 02:56:27,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 247. [2022-03-20 02:56:27,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247 states, 242 states have (on average 1.640495867768595) internal successors, (397), 242 states have internal predecessors, (397), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:56:27,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 401 transitions. [2022-03-20 02:56:27,040 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 401 transitions. Word has length 91 [2022-03-20 02:56:27,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:56:27,040 INFO L478 AbstractCegarLoop]: Abstraction has 247 states and 401 transitions. [2022-03-20 02:56:27,040 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:56:27,040 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 401 transitions. [2022-03-20 02:56:27,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-03-20 02:56:27,041 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:56:27,041 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 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] [2022-03-20 02:56:27,042 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-20 02:56:27,042 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:56:27,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:56:27,042 INFO L85 PathProgramCache]: Analyzing trace with hash 754171252, now seen corresponding path program 1 times [2022-03-20 02:56:27,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:56:27,042 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927714344] [2022-03-20 02:56:27,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:56:27,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:56:27,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:56:27,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:56:27,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:56:27,170 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-03-20 02:56:27,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:56:27,170 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [927714344] [2022-03-20 02:56:27,170 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [927714344] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:56:27,171 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:56:27,171 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:56:27,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198253954] [2022-03-20 02:56:27,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:56:27,171 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:56:27,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:56:27,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:56:27,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:56:27,172 INFO L87 Difference]: Start difference. First operand 247 states and 401 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:56:29,595 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:56:31,613 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:56:32,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:56:32,000 INFO L93 Difference]: Finished difference Result 484 states and 785 transitions. [2022-03-20 02:56:32,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:56:32,001 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 92 [2022-03-20 02:56:32,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:56:32,002 INFO L225 Difference]: With dead ends: 484 [2022-03-20 02:56:32,002 INFO L226 Difference]: Without dead ends: 263 [2022-03-20 02:56:32,003 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:56:32,004 INFO L913 BasicCegarLoop]: 184 mSDtfsCounter, 28 mSDsluCounter, 289 mSDsCounter, 0 mSdLazyCounter, 357 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 473 SdHoareTripleChecker+Invalid, 367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 357 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-03-20 02:56:32,004 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 473 Invalid, 367 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 357 Invalid, 1 Unknown, 0 Unchecked, 4.8s Time] [2022-03-20 02:56:32,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263 states. [2022-03-20 02:56:32,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263 to 247. [2022-03-20 02:56:32,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247 states, 242 states have (on average 1.6363636363636365) internal successors, (396), 242 states have internal predecessors, (396), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:56:32,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 400 transitions. [2022-03-20 02:56:32,014 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 400 transitions. Word has length 92 [2022-03-20 02:56:32,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:56:32,014 INFO L478 AbstractCegarLoop]: Abstraction has 247 states and 400 transitions. [2022-03-20 02:56:32,014 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:56:32,015 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 400 transitions. [2022-03-20 02:56:32,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-03-20 02:56:32,016 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:56:32,016 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 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] [2022-03-20 02:56:32,016 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-20 02:56:32,016 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:56:32,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:56:32,017 INFO L85 PathProgramCache]: Analyzing trace with hash 1601811464, now seen corresponding path program 1 times [2022-03-20 02:56:32,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:56:32,017 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486014965] [2022-03-20 02:56:32,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:56:32,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:56:32,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:56:32,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:56:32,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:56:32,177 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-03-20 02:56:32,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:56:32,177 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486014965] [2022-03-20 02:56:32,177 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [486014965] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:56:32,177 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:56:32,177 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:56:32,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731958199] [2022-03-20 02:56:32,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:56:32,178 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:56:32,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:56:32,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:56:32,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:56:32,180 INFO L87 Difference]: Start difference. First operand 247 states and 400 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:56:33,898 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:56:35,062 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:56:36,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:56:36,722 INFO L93 Difference]: Finished difference Result 544 states and 869 transitions. [2022-03-20 02:56:36,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:56:36,722 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 92 [2022-03-20 02:56:36,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:56:36,724 INFO L225 Difference]: With dead ends: 544 [2022-03-20 02:56:36,724 INFO L226 Difference]: Without dead ends: 323 [2022-03-20 02:56:36,724 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:56:36,725 INFO L913 BasicCegarLoop]: 123 mSDtfsCounter, 144 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 350 SdHoareTripleChecker+Invalid, 545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-03-20 02:56:36,725 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [144 Valid, 350 Invalid, 545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 483 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2022-03-20 02:56:36,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2022-03-20 02:56:36,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 247. [2022-03-20 02:56:36,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247 states, 242 states have (on average 1.6198347107438016) internal successors, (392), 242 states have internal predecessors, (392), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:56:36,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 396 transitions. [2022-03-20 02:56:36,731 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 396 transitions. Word has length 92 [2022-03-20 02:56:36,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:56:36,732 INFO L478 AbstractCegarLoop]: Abstraction has 247 states and 396 transitions. [2022-03-20 02:56:36,732 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:56:36,732 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 396 transitions. [2022-03-20 02:56:36,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-03-20 02:56:36,733 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:56:36,734 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2022-03-20 02:56:36,734 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-20 02:56:36,734 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:56:36,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:56:36,735 INFO L85 PathProgramCache]: Analyzing trace with hash 1654788863, now seen corresponding path program 1 times [2022-03-20 02:56:36,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:56:36,735 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502649189] [2022-03-20 02:56:36,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:56:36,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:56:36,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:56:36,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:56:36,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:56:36,843 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-03-20 02:56:36,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:56:36,843 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502649189] [2022-03-20 02:56:36,843 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1502649189] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:56:36,843 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:56:36,843 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:56:36,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697962475] [2022-03-20 02:56:36,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:56:36,844 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:56:36,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:56:36,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:56:36,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:56:36,844 INFO L87 Difference]: Start difference. First operand 247 states and 396 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:56:38,854 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:56:39,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:56:39,267 INFO L93 Difference]: Finished difference Result 482 states and 775 transitions. [2022-03-20 02:56:39,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:56:39,267 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 92 [2022-03-20 02:56:39,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:56:39,269 INFO L225 Difference]: With dead ends: 482 [2022-03-20 02:56:39,269 INFO L226 Difference]: Without dead ends: 261 [2022-03-20 02:56:39,269 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:56:39,270 INFO L913 BasicCegarLoop]: 186 mSDtfsCounter, 20 mSDsluCounter, 291 mSDsCounter, 0 mSdLazyCounter, 350 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 477 SdHoareTripleChecker+Invalid, 359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 350 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 02:56:39,270 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 477 Invalid, 359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 350 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 02:56:39,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2022-03-20 02:56:39,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 247. [2022-03-20 02:56:39,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247 states, 242 states have (on average 1.615702479338843) internal successors, (391), 242 states have internal predecessors, (391), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:56:39,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 395 transitions. [2022-03-20 02:56:39,282 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 395 transitions. Word has length 92 [2022-03-20 02:56:39,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:56:39,282 INFO L478 AbstractCegarLoop]: Abstraction has 247 states and 395 transitions. [2022-03-20 02:56:39,282 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:56:39,283 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 395 transitions. [2022-03-20 02:56:39,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-03-20 02:56:39,283 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:56:39,284 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-03-20 02:56:39,284 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-03-20 02:56:39,284 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:56:39,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:56:39,284 INFO L85 PathProgramCache]: Analyzing trace with hash -961873472, now seen corresponding path program 1 times [2022-03-20 02:56:39,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:56:39,285 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332096516] [2022-03-20 02:56:39,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:56:39,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:56:39,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:56:39,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:56:39,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:56:39,451 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-03-20 02:56:39,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:56:39,451 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332096516] [2022-03-20 02:56:39,451 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1332096516] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:56:39,451 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:56:39,451 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:56:39,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040459620] [2022-03-20 02:56:39,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:56:39,452 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:56:39,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:56:39,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:56:39,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:56:39,452 INFO L87 Difference]: Start difference. First operand 247 states and 395 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:56:41,628 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:56:42,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:56:42,698 INFO L93 Difference]: Finished difference Result 481 states and 773 transitions. [2022-03-20 02:56:42,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:56:42,698 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 92 [2022-03-20 02:56:42,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:56:42,699 INFO L225 Difference]: With dead ends: 481 [2022-03-20 02:56:42,699 INFO L226 Difference]: Without dead ends: 260 [2022-03-20 02:56:42,700 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:56:42,700 INFO L913 BasicCegarLoop]: 187 mSDtfsCounter, 18 mSDsluCounter, 292 mSDsCounter, 0 mSdLazyCounter, 352 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 479 SdHoareTripleChecker+Invalid, 360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-03-20 02:56:42,700 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 479 Invalid, 360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 352 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-03-20 02:56:42,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2022-03-20 02:56:42,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 247. [2022-03-20 02:56:42,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247 states, 242 states have (on average 1.6115702479338843) internal successors, (390), 242 states have internal predecessors, (390), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:56:42,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 394 transitions. [2022-03-20 02:56:42,705 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 394 transitions. Word has length 92 [2022-03-20 02:56:42,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:56:42,706 INFO L478 AbstractCegarLoop]: Abstraction has 247 states and 394 transitions. [2022-03-20 02:56:42,706 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:56:42,706 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 394 transitions. [2022-03-20 02:56:42,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-03-20 02:56:42,707 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:56:42,707 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 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] [2022-03-20 02:56:42,707 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-03-20 02:56:42,707 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:56:42,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:56:42,708 INFO L85 PathProgramCache]: Analyzing trace with hash -304912275, now seen corresponding path program 1 times [2022-03-20 02:56:42,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:56:42,708 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835934402] [2022-03-20 02:56:42,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:56:42,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:56:42,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:56:42,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:56:42,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:56:42,821 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-03-20 02:56:42,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:56:42,822 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1835934402] [2022-03-20 02:56:42,822 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1835934402] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:56:42,822 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:56:42,822 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:56:42,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423742817] [2022-03-20 02:56:42,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:56:42,823 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:56:42,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:56:42,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:56:42,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:56:42,823 INFO L87 Difference]: Start difference. First operand 247 states and 394 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:56:43,978 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:56:45,994 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:56:48,693 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:56:49,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:56:49,039 INFO L93 Difference]: Finished difference Result 481 states and 772 transitions. [2022-03-20 02:56:49,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:56:49,039 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 93 [2022-03-20 02:56:49,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:56:49,041 INFO L225 Difference]: With dead ends: 481 [2022-03-20 02:56:49,041 INFO L226 Difference]: Without dead ends: 260 [2022-03-20 02:56:49,041 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:56:49,042 INFO L913 BasicCegarLoop]: 187 mSDtfsCounter, 22 mSDsluCounter, 292 mSDsCounter, 0 mSdLazyCounter, 351 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 479 SdHoareTripleChecker+Invalid, 360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 351 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-03-20 02:56:49,042 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 479 Invalid, 360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 351 Invalid, 1 Unknown, 0 Unchecked, 6.2s Time] [2022-03-20 02:56:49,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2022-03-20 02:56:49,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 247. [2022-03-20 02:56:49,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247 states, 242 states have (on average 1.6074380165289257) internal successors, (389), 242 states have internal predecessors, (389), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:56:49,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 393 transitions. [2022-03-20 02:56:49,047 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 393 transitions. Word has length 93 [2022-03-20 02:56:49,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:56:49,047 INFO L478 AbstractCegarLoop]: Abstraction has 247 states and 393 transitions. [2022-03-20 02:56:49,047 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:56:49,047 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 393 transitions. [2022-03-20 02:56:49,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-03-20 02:56:49,048 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:56:49,048 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 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] [2022-03-20 02:56:49,048 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-03-20 02:56:49,048 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:56:49,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:56:49,049 INFO L85 PathProgramCache]: Analyzing trace with hash 756487789, now seen corresponding path program 1 times [2022-03-20 02:56:49,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:56:49,049 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417638739] [2022-03-20 02:56:49,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:56:49,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:56:49,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:56:49,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:56:49,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:56:49,167 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-03-20 02:56:49,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:56:49,167 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417638739] [2022-03-20 02:56:49,167 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [417638739] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:56:49,167 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:56:49,167 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:56:49,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239219409] [2022-03-20 02:56:49,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:56:49,168 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:56:49,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:56:49,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:56:49,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:56:49,168 INFO L87 Difference]: Start difference. First operand 247 states and 393 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:56:51,100 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.93s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:56:53,266 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:56:53,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:56:53,719 INFO L93 Difference]: Finished difference Result 544 states and 859 transitions. [2022-03-20 02:56:53,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:56:53,719 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 94 [2022-03-20 02:56:53,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:56:53,720 INFO L225 Difference]: With dead ends: 544 [2022-03-20 02:56:53,720 INFO L226 Difference]: Without dead ends: 323 [2022-03-20 02:56:53,721 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:56:53,721 INFO L913 BasicCegarLoop]: 123 mSDtfsCounter, 141 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 350 SdHoareTripleChecker+Invalid, 545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-03-20 02:56:53,722 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [141 Valid, 350 Invalid, 545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 483 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2022-03-20 02:56:53,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2022-03-20 02:56:53,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 247. [2022-03-20 02:56:53,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247 states, 242 states have (on average 1.5909090909090908) internal successors, (385), 242 states have internal predecessors, (385), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:56:53,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 389 transitions. [2022-03-20 02:56:53,727 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 389 transitions. Word has length 94 [2022-03-20 02:56:53,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:56:53,727 INFO L478 AbstractCegarLoop]: Abstraction has 247 states and 389 transitions. [2022-03-20 02:56:53,727 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:56:53,727 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 389 transitions. [2022-03-20 02:56:53,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-03-20 02:56:53,728 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:56:53,728 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 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] [2022-03-20 02:56:53,728 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-03-20 02:56:53,728 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:56:53,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:56:53,728 INFO L85 PathProgramCache]: Analyzing trace with hash -659554766, now seen corresponding path program 1 times [2022-03-20 02:56:53,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:56:53,729 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334587326] [2022-03-20 02:56:53,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:56:53,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:56:53,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:56:53,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:56:53,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:56:53,843 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-03-20 02:56:53,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:56:53,844 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [334587326] [2022-03-20 02:56:53,844 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [334587326] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:56:53,844 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:56:53,844 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:56:53,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700760793] [2022-03-20 02:56:53,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:56:53,844 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:56:53,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:56:53,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:56:53,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:56:53,845 INFO L87 Difference]: Start difference. First operand 247 states and 389 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:56:54,927 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 [] [2022-03-20 02:56:56,856 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.93s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:56:58,878 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:57:00,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:57:00,106 INFO L93 Difference]: Finished difference Result 544 states and 852 transitions. [2022-03-20 02:57:00,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:57:00,107 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 95 [2022-03-20 02:57:00,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:57:00,108 INFO L225 Difference]: With dead ends: 544 [2022-03-20 02:57:00,108 INFO L226 Difference]: Without dead ends: 323 [2022-03-20 02:57:00,109 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:57:00,109 INFO L913 BasicCegarLoop]: 123 mSDtfsCounter, 139 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 62 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 350 SdHoareTripleChecker+Invalid, 545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-03-20 02:57:00,109 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [139 Valid, 350 Invalid, 545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 482 Invalid, 1 Unknown, 0 Unchecked, 6.2s Time] [2022-03-20 02:57:00,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2022-03-20 02:57:00,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 247. [2022-03-20 02:57:00,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247 states, 242 states have (on average 1.5743801652892562) internal successors, (381), 242 states have internal predecessors, (381), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:57:00,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 385 transitions. [2022-03-20 02:57:00,117 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 385 transitions. Word has length 95 [2022-03-20 02:57:00,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:57:00,117 INFO L478 AbstractCegarLoop]: Abstraction has 247 states and 385 transitions. [2022-03-20 02:57:00,117 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:57:00,117 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 385 transitions. [2022-03-20 02:57:00,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-03-20 02:57:00,118 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:57:00,118 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:57:00,118 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-03-20 02:57:00,118 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:57:00,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:57:00,118 INFO L85 PathProgramCache]: Analyzing trace with hash 1613927131, now seen corresponding path program 1 times [2022-03-20 02:57:00,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:57:00,118 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096905672] [2022-03-20 02:57:00,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:57:00,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:57:00,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:57:00,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:57:00,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:57:00,252 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 02:57:00,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:57:00,252 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096905672] [2022-03-20 02:57:00,252 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1096905672] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:57:00,252 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:57:00,252 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:57:00,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461020024] [2022-03-20 02:57:00,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:57:00,253 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:57:00,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:57:00,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:57:00,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:57:00,253 INFO L87 Difference]: Start difference. First operand 247 states and 385 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:57:02,278 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:57:03,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:57:03,367 INFO L93 Difference]: Finished difference Result 620 states and 979 transitions. [2022-03-20 02:57:03,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:57:03,367 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 95 [2022-03-20 02:57:03,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:57:03,369 INFO L225 Difference]: With dead ends: 620 [2022-03-20 02:57:03,369 INFO L226 Difference]: Without dead ends: 399 [2022-03-20 02:57:03,369 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:57:03,370 INFO L913 BasicCegarLoop]: 119 mSDtfsCounter, 121 mSDsluCounter, 223 mSDsCounter, 0 mSdLazyCounter, 468 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 342 SdHoareTripleChecker+Invalid, 519 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 468 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-03-20 02:57:03,370 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [121 Valid, 342 Invalid, 519 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 468 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-03-20 02:57:03,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 399 states. [2022-03-20 02:57:03,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 399 to 311. [2022-03-20 02:57:03,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 311 states, 306 states have (on average 1.5980392156862746) internal successors, (489), 306 states have internal predecessors, (489), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:57:03,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 311 states and 493 transitions. [2022-03-20 02:57:03,376 INFO L78 Accepts]: Start accepts. Automaton has 311 states and 493 transitions. Word has length 95 [2022-03-20 02:57:03,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:57:03,377 INFO L478 AbstractCegarLoop]: Abstraction has 311 states and 493 transitions. [2022-03-20 02:57:03,377 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:57:03,377 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states and 493 transitions. [2022-03-20 02:57:03,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-03-20 02:57:03,378 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:57:03,378 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-03-20 02:57:03,378 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-03-20 02:57:03,378 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:57:03,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:57:03,378 INFO L85 PathProgramCache]: Analyzing trace with hash -343569407, now seen corresponding path program 1 times [2022-03-20 02:57:03,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:57:03,379 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117012511] [2022-03-20 02:57:03,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:57:03,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:57:03,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:57:03,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:57:03,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:57:03,490 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 02:57:03,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:57:03,490 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [117012511] [2022-03-20 02:57:03,490 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [117012511] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:57:03,490 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:57:03,490 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:57:03,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427395976] [2022-03-20 02:57:03,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:57:03,491 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:57:03,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:57:03,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:57:03,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:57:03,491 INFO L87 Difference]: Start difference. First operand 311 states and 493 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:57:05,738 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:57:07,786 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 [] [2022-03-20 02:57:08,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:57:08,233 INFO L93 Difference]: Finished difference Result 712 states and 1129 transitions. [2022-03-20 02:57:08,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:57:08,234 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 100 [2022-03-20 02:57:08,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:57:08,235 INFO L225 Difference]: With dead ends: 712 [2022-03-20 02:57:08,235 INFO L226 Difference]: Without dead ends: 427 [2022-03-20 02:57:08,236 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:57:08,236 INFO L913 BasicCegarLoop]: 113 mSDtfsCounter, 117 mSDsluCounter, 217 mSDsCounter, 0 mSdLazyCounter, 474 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 330 SdHoareTripleChecker+Invalid, 536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 474 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-03-20 02:57:08,236 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [117 Valid, 330 Invalid, 536 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 474 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2022-03-20 02:57:08,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2022-03-20 02:57:08,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 348. [2022-03-20 02:57:08,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 348 states, 343 states have (on average 1.6064139941690962) internal successors, (551), 343 states have internal predecessors, (551), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:57:08,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 555 transitions. [2022-03-20 02:57:08,242 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 555 transitions. Word has length 100 [2022-03-20 02:57:08,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:57:08,243 INFO L478 AbstractCegarLoop]: Abstraction has 348 states and 555 transitions. [2022-03-20 02:57:08,243 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:57:08,243 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 555 transitions. [2022-03-20 02:57:08,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-20 02:57:08,244 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:57:08,244 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-03-20 02:57:08,244 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-03-20 02:57:08,244 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:57:08,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:57:08,244 INFO L85 PathProgramCache]: Analyzing trace with hash 758231725, now seen corresponding path program 1 times [2022-03-20 02:57:08,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:57:08,244 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180730649] [2022-03-20 02:57:08,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:57:08,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:57:08,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:57:08,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:57:08,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:57:08,328 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 02:57:08,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:57:08,329 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180730649] [2022-03-20 02:57:08,329 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [180730649] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:57:08,329 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:57:08,329 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:57:08,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366206769] [2022-03-20 02:57:08,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:57:08,329 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:57:08,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:57:08,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:57:08,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:57:08,330 INFO L87 Difference]: Start difference. First operand 348 states and 555 transitions. Second operand has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:57:11,745 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:57:13,764 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:57:14,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:57:14,188 INFO L93 Difference]: Finished difference Result 746 states and 1185 transitions. [2022-03-20 02:57:14,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:57:14,188 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 101 [2022-03-20 02:57:14,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:57:14,189 INFO L225 Difference]: With dead ends: 746 [2022-03-20 02:57:14,189 INFO L226 Difference]: Without dead ends: 424 [2022-03-20 02:57:14,190 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:57:14,191 INFO L913 BasicCegarLoop]: 123 mSDtfsCounter, 116 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 481 mSolverCounterSat, 62 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 350 SdHoareTripleChecker+Invalid, 545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 481 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-03-20 02:57:14,191 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [116 Valid, 350 Invalid, 545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 481 Invalid, 2 Unknown, 0 Unchecked, 5.8s Time] [2022-03-20 02:57:14,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 424 states. [2022-03-20 02:57:14,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 424 to 348. [2022-03-20 02:57:14,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 348 states, 343 states have (on average 1.6005830903790088) internal successors, (549), 343 states have internal predecessors, (549), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:57:14,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 553 transitions. [2022-03-20 02:57:14,197 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 553 transitions. Word has length 101 [2022-03-20 02:57:14,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:57:14,197 INFO L478 AbstractCegarLoop]: Abstraction has 348 states and 553 transitions. [2022-03-20 02:57:14,198 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:57:14,198 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 553 transitions. [2022-03-20 02:57:14,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-20 02:57:14,198 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:57:14,198 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-03-20 02:57:14,199 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-03-20 02:57:14,199 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:57:14,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:57:14,199 INFO L85 PathProgramCache]: Analyzing trace with hash -854368715, now seen corresponding path program 1 times [2022-03-20 02:57:14,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:57:14,199 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692633857] [2022-03-20 02:57:14,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:57:14,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:57:14,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:57:14,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:57:14,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:57:14,289 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-03-20 02:57:14,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:57:14,290 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692633857] [2022-03-20 02:57:14,290 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1692633857] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:57:14,290 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:57:14,290 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:57:14,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503984207] [2022-03-20 02:57:14,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:57:14,290 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:57:14,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:57:14,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:57:14,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:57:14,291 INFO L87 Difference]: Start difference. First operand 348 states and 553 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:57:15,637 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:57:17,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:57:17,920 INFO L93 Difference]: Finished difference Result 760 states and 1211 transitions. [2022-03-20 02:57:17,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:57:17,921 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 109 [2022-03-20 02:57:17,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:57:17,922 INFO L225 Difference]: With dead ends: 760 [2022-03-20 02:57:17,922 INFO L226 Difference]: Without dead ends: 438 [2022-03-20 02:57:17,923 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:57:17,923 INFO L913 BasicCegarLoop]: 151 mSDtfsCounter, 97 mSDsluCounter, 260 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 411 SdHoareTripleChecker+Invalid, 483 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-03-20 02:57:17,923 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [97 Valid, 411 Invalid, 483 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 473 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-03-20 02:57:17,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 438 states. [2022-03-20 02:57:17,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 438 to 365. [2022-03-20 02:57:17,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 365 states, 360 states have (on average 1.5916666666666666) internal successors, (573), 360 states have internal predecessors, (573), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:57:17,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 577 transitions. [2022-03-20 02:57:17,929 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 577 transitions. Word has length 109 [2022-03-20 02:57:17,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:57:17,930 INFO L478 AbstractCegarLoop]: Abstraction has 365 states and 577 transitions. [2022-03-20 02:57:17,930 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:57:17,930 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 577 transitions. [2022-03-20 02:57:17,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-20 02:57:17,931 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:57:17,931 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-03-20 02:57:17,931 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-03-20 02:57:17,931 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:57:17,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:57:17,931 INFO L85 PathProgramCache]: Analyzing trace with hash 280157251, now seen corresponding path program 1 times [2022-03-20 02:57:17,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:57:17,932 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676696469] [2022-03-20 02:57:17,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:57:17,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:57:17,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:57:18,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:57:18,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:57:18,012 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-03-20 02:57:18,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:57:18,012 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676696469] [2022-03-20 02:57:18,013 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1676696469] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:57:18,013 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:57:18,013 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:57:18,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844370501] [2022-03-20 02:57:18,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:57:18,013 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:57:18,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:57:18,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:57:18,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:57:18,014 INFO L87 Difference]: Start difference. First operand 365 states and 577 transitions. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 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) [2022-03-20 02:57:20,498 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:57:21,922 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:57:22,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:57:22,307 INFO L93 Difference]: Finished difference Result 728 states and 1159 transitions. [2022-03-20 02:57:22,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:57:22,307 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 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 109 [2022-03-20 02:57:22,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:57:22,309 INFO L225 Difference]: With dead ends: 728 [2022-03-20 02:57:22,309 INFO L226 Difference]: Without dead ends: 389 [2022-03-20 02:57:22,309 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:57:22,310 INFO L913 BasicCegarLoop]: 192 mSDtfsCounter, 29 mSDsluCounter, 303 mSDsCounter, 0 mSdLazyCounter, 390 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 495 SdHoareTripleChecker+Invalid, 400 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 390 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-03-20 02:57:22,310 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [29 Valid, 495 Invalid, 400 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 390 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2022-03-20 02:57:22,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states. [2022-03-20 02:57:22,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 370. [2022-03-20 02:57:22,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 370 states, 365 states have (on average 1.5945205479452054) internal successors, (582), 365 states have internal predecessors, (582), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:57:22,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 586 transitions. [2022-03-20 02:57:22,316 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 586 transitions. Word has length 109 [2022-03-20 02:57:22,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:57:22,317 INFO L478 AbstractCegarLoop]: Abstraction has 370 states and 586 transitions. [2022-03-20 02:57:22,317 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 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) [2022-03-20 02:57:22,317 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 586 transitions. [2022-03-20 02:57:22,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-03-20 02:57:22,318 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:57:22,318 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:57:22,318 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-03-20 02:57:22,318 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:57:22,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:57:22,318 INFO L85 PathProgramCache]: Analyzing trace with hash 425730527, now seen corresponding path program 1 times [2022-03-20 02:57:22,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:57:22,319 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516999869] [2022-03-20 02:57:22,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:57:22,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:57:22,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:57:22,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:57:22,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:57:22,412 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2022-03-20 02:57:22,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:57:22,412 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1516999869] [2022-03-20 02:57:22,412 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1516999869] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:57:22,412 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:57:22,412 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:57:22,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213279489] [2022-03-20 02:57:22,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:57:22,412 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:57:22,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:57:22,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:57:22,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:57:22,413 INFO L87 Difference]: Start difference. First operand 370 states and 586 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:57:25,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:57:25,204 INFO L93 Difference]: Finished difference Result 789 states and 1246 transitions. [2022-03-20 02:57:25,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:57:25,204 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 122 [2022-03-20 02:57:25,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:57:25,206 INFO L225 Difference]: With dead ends: 789 [2022-03-20 02:57:25,206 INFO L226 Difference]: Without dead ends: 445 [2022-03-20 02:57:25,206 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:57:25,207 INFO L913 BasicCegarLoop]: 124 mSDtfsCounter, 142 mSDsluCounter, 228 mSDsCounter, 0 mSdLazyCounter, 481 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 481 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-03-20 02:57:25,207 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [142 Valid, 352 Invalid, 542 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 481 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-03-20 02:57:25,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 445 states. [2022-03-20 02:57:25,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 445 to 370. [2022-03-20 02:57:25,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 370 states, 365 states have (on average 1.5753424657534247) internal successors, (575), 365 states have internal predecessors, (575), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:57:25,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 579 transitions. [2022-03-20 02:57:25,214 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 579 transitions. Word has length 122 [2022-03-20 02:57:25,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:57:25,214 INFO L478 AbstractCegarLoop]: Abstraction has 370 states and 579 transitions. [2022-03-20 02:57:25,214 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:57:25,214 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 579 transitions. [2022-03-20 02:57:25,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-03-20 02:57:25,216 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:57:25,216 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:57:25,216 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-03-20 02:57:25,216 INFO L403 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:57:25,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:57:25,216 INFO L85 PathProgramCache]: Analyzing trace with hash -1936774222, now seen corresponding path program 1 times [2022-03-20 02:57:25,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:57:25,216 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51658513] [2022-03-20 02:57:25,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:57:25,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:57:25,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:57:25,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:57:25,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:57:25,369 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2022-03-20 02:57:25,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:57:25,369 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51658513] [2022-03-20 02:57:25,369 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [51658513] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:57:25,371 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:57:25,371 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-20 02:57:25,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600874280] [2022-03-20 02:57:25,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:57:25,371 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-20 02:57:25,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:57:25,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-20 02:57:25,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:57:25,372 INFO L87 Difference]: Start difference. First operand 370 states and 579 transitions. Second operand has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 5 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:57:28,892 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 [] [2022-03-20 02:57:29,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:57:29,798 INFO L93 Difference]: Finished difference Result 724 states and 1141 transitions. [2022-03-20 02:57:29,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-20 02:57:29,799 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 5 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 123 [2022-03-20 02:57:29,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:57:29,800 INFO L225 Difference]: With dead ends: 724 [2022-03-20 02:57:29,800 INFO L226 Difference]: Without dead ends: 380 [2022-03-20 02:57:29,801 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-03-20 02:57:29,802 INFO L913 BasicCegarLoop]: 113 mSDtfsCounter, 145 mSDsluCounter, 248 mSDsCounter, 0 mSdLazyCounter, 523 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 361 SdHoareTripleChecker+Invalid, 566 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 523 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-03-20 02:57:29,802 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [145 Valid, 361 Invalid, 566 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 523 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2022-03-20 02:57:29,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2022-03-20 02:57:29,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 379. [2022-03-20 02:57:29,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 379 states, 374 states have (on average 1.5668449197860963) internal successors, (586), 374 states have internal predecessors, (586), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:57:29,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 590 transitions. [2022-03-20 02:57:29,808 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 590 transitions. Word has length 123 [2022-03-20 02:57:29,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:57:29,808 INFO L478 AbstractCegarLoop]: Abstraction has 379 states and 590 transitions. [2022-03-20 02:57:29,808 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 5 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:57:29,808 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 590 transitions. [2022-03-20 02:57:29,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-03-20 02:57:29,809 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:57:29,809 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:57:29,809 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-03-20 02:57:29,809 INFO L403 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:57:29,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:57:29,810 INFO L85 PathProgramCache]: Analyzing trace with hash 1547814160, now seen corresponding path program 1 times [2022-03-20 02:57:29,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:57:29,810 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74685690] [2022-03-20 02:57:29,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:57:29,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:57:29,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:57:29,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:57:29,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:57:29,896 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 93 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-03-20 02:57:29,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:57:29,896 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74685690] [2022-03-20 02:57:29,896 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [74685690] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:57:29,896 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:57:29,897 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:57:29,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977817262] [2022-03-20 02:57:29,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:57:29,897 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:57:29,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:57:29,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:57:29,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:57:29,897 INFO L87 Difference]: Start difference. First operand 379 states and 590 transitions. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:57:32,221 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:57:34,043 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:57:34,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:57:34,791 INFO L93 Difference]: Finished difference Result 822 states and 1283 transitions. [2022-03-20 02:57:34,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:57:34,792 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 123 [2022-03-20 02:57:34,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:57:34,794 INFO L225 Difference]: With dead ends: 822 [2022-03-20 02:57:34,794 INFO L226 Difference]: Without dead ends: 469 [2022-03-20 02:57:34,795 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:57:34,795 INFO L913 BasicCegarLoop]: 193 mSDtfsCounter, 96 mSDsluCounter, 302 mSDsCounter, 0 mSdLazyCounter, 515 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 495 SdHoareTripleChecker+Invalid, 526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 515 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-03-20 02:57:34,795 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [96 Valid, 495 Invalid, 526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 515 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2022-03-20 02:57:34,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469 states. [2022-03-20 02:57:34,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 469 to 397. [2022-03-20 02:57:34,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 397 states, 392 states have (on average 1.5561224489795917) internal successors, (610), 392 states have internal predecessors, (610), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:57:34,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 614 transitions. [2022-03-20 02:57:34,804 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 614 transitions. Word has length 123 [2022-03-20 02:57:34,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:57:34,805 INFO L478 AbstractCegarLoop]: Abstraction has 397 states and 614 transitions. [2022-03-20 02:57:34,805 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:57:34,805 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 614 transitions. [2022-03-20 02:57:34,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-03-20 02:57:34,806 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:57:34,806 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:57:34,806 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-03-20 02:57:34,806 INFO L403 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:57:34,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:57:34,806 INFO L85 PathProgramCache]: Analyzing trace with hash -1612627170, now seen corresponding path program 1 times [2022-03-20 02:57:34,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:57:34,807 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821272974] [2022-03-20 02:57:34,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:57:34,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:57:34,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:57:34,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:57:34,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:57:34,896 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-03-20 02:57:34,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:57:34,896 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [821272974] [2022-03-20 02:57:34,897 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [821272974] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:57:34,897 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:57:34,897 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:57:34,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894986454] [2022-03-20 02:57:34,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:57:34,897 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:57:34,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:57:34,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:57:34,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:57:34,898 INFO L87 Difference]: Start difference. First operand 397 states and 614 transitions. Second operand has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 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) [2022-03-20 02:57:36,906 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:57:37,950 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:57:39,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:57:39,399 INFO L93 Difference]: Finished difference Result 785 states and 1220 transitions. [2022-03-20 02:57:39,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:57:39,400 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 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 123 [2022-03-20 02:57:39,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:57:39,401 INFO L225 Difference]: With dead ends: 785 [2022-03-20 02:57:39,401 INFO L226 Difference]: Without dead ends: 414 [2022-03-20 02:57:39,402 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:57:39,402 INFO L913 BasicCegarLoop]: 196 mSDtfsCounter, 31 mSDsluCounter, 305 mSDsCounter, 0 mSdLazyCounter, 383 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 501 SdHoareTripleChecker+Invalid, 392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-03-20 02:57:39,402 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [31 Valid, 501 Invalid, 392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 383 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2022-03-20 02:57:39,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 414 states. [2022-03-20 02:57:39,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 414 to 397. [2022-03-20 02:57:39,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 397 states, 392 states have (on average 1.5535714285714286) internal successors, (609), 392 states have internal predecessors, (609), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:57:39,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 613 transitions. [2022-03-20 02:57:39,408 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 613 transitions. Word has length 123 [2022-03-20 02:57:39,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:57:39,409 INFO L478 AbstractCegarLoop]: Abstraction has 397 states and 613 transitions. [2022-03-20 02:57:39,409 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 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) [2022-03-20 02:57:39,409 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 613 transitions. [2022-03-20 02:57:39,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2022-03-20 02:57:39,410 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:57:39,410 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:57:39,410 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-03-20 02:57:39,410 INFO L403 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:57:39,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:57:39,410 INFO L85 PathProgramCache]: Analyzing trace with hash 7093196, now seen corresponding path program 1 times [2022-03-20 02:57:39,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:57:39,410 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143083969] [2022-03-20 02:57:39,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:57:39,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:57:39,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:57:39,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:57:39,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:57:39,494 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2022-03-20 02:57:39,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:57:39,494 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2143083969] [2022-03-20 02:57:39,494 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2143083969] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:57:39,494 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:57:39,494 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:57:39,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408363680] [2022-03-20 02:57:39,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:57:39,495 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:57:39,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:57:39,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:57:39,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:57:39,495 INFO L87 Difference]: Start difference. First operand 397 states and 613 transitions. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:57:41,423 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:57:43,803 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:57:44,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:57:44,108 INFO L93 Difference]: Finished difference Result 775 states and 1206 transitions. [2022-03-20 02:57:44,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:57:44,109 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 125 [2022-03-20 02:57:44,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:57:44,110 INFO L225 Difference]: With dead ends: 775 [2022-03-20 02:57:44,110 INFO L226 Difference]: Without dead ends: 404 [2022-03-20 02:57:44,110 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:57:44,111 INFO L913 BasicCegarLoop]: 202 mSDtfsCounter, 28 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 371 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 513 SdHoareTripleChecker+Invalid, 376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 371 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-03-20 02:57:44,111 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 513 Invalid, 376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 371 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2022-03-20 02:57:44,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 404 states. [2022-03-20 02:57:44,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 404 to 397. [2022-03-20 02:57:44,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 397 states, 392 states have (on average 1.5510204081632653) internal successors, (608), 392 states have internal predecessors, (608), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:57:44,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 612 transitions. [2022-03-20 02:57:44,117 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 612 transitions. Word has length 125 [2022-03-20 02:57:44,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:57:44,117 INFO L478 AbstractCegarLoop]: Abstraction has 397 states and 612 transitions. [2022-03-20 02:57:44,117 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:57:44,118 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 612 transitions. [2022-03-20 02:57:44,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-03-20 02:57:44,118 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:57:44,118 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:57:44,118 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-03-20 02:57:44,119 INFO L403 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:57:44,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:57:44,119 INFO L85 PathProgramCache]: Analyzing trace with hash -74513729, now seen corresponding path program 1 times [2022-03-20 02:57:44,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:57:44,119 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [464176577] [2022-03-20 02:57:44,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:57:44,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:57:44,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:57:44,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:57:44,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:57:44,224 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 101 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-20 02:57:44,224 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:57:44,224 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [464176577] [2022-03-20 02:57:44,224 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [464176577] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:57:44,224 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:57:44,224 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:57:44,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343040516] [2022-03-20 02:57:44,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:57:44,225 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:57:44,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:57:44,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:57:44,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:57:44,225 INFO L87 Difference]: Start difference. First operand 397 states and 612 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:57:46,803 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:57:48,926 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:57:49,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:57:49,353 INFO L93 Difference]: Finished difference Result 858 states and 1327 transitions. [2022-03-20 02:57:49,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:57:49,356 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 131 [2022-03-20 02:57:49,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:57:49,357 INFO L225 Difference]: With dead ends: 858 [2022-03-20 02:57:49,357 INFO L226 Difference]: Without dead ends: 487 [2022-03-20 02:57:49,358 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:57:49,358 INFO L913 BasicCegarLoop]: 176 mSDtfsCounter, 96 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 499 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 461 SdHoareTripleChecker+Invalid, 510 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 499 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-03-20 02:57:49,358 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [96 Valid, 461 Invalid, 510 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 499 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2022-03-20 02:57:49,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 487 states. [2022-03-20 02:57:49,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 487 to 397. [2022-03-20 02:57:49,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 397 states, 392 states have (on average 1.5510204081632653) internal successors, (608), 392 states have internal predecessors, (608), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:57:49,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 612 transitions. [2022-03-20 02:57:49,365 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 612 transitions. Word has length 131 [2022-03-20 02:57:49,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:57:49,365 INFO L478 AbstractCegarLoop]: Abstraction has 397 states and 612 transitions. [2022-03-20 02:57:49,365 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:57:49,365 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 612 transitions. [2022-03-20 02:57:49,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-03-20 02:57:49,366 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:57:49,366 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:57:49,366 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-03-20 02:57:49,366 INFO L403 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:57:49,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:57:49,366 INFO L85 PathProgramCache]: Analyzing trace with hash 1060012237, now seen corresponding path program 1 times [2022-03-20 02:57:49,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:57:49,367 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368702679] [2022-03-20 02:57:49,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:57:49,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:57:49,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:57:49,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:57:49,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:57:49,477 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-20 02:57:49,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:57:49,478 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368702679] [2022-03-20 02:57:49,478 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1368702679] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:57:49,478 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:57:49,478 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:57:49,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534808179] [2022-03-20 02:57:49,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:57:49,478 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:57:49,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:57:49,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:57:49,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:57:49,479 INFO L87 Difference]: Start difference. First operand 397 states and 612 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) [2022-03-20 02:57:51,711 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 [] [2022-03-20 02:57:53,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:57:53,677 INFO L93 Difference]: Finished difference Result 883 states and 1362 transitions. [2022-03-20 02:57:53,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:57:53,677 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 [2022-03-20 02:57:53,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:57:53,679 INFO L225 Difference]: With dead ends: 883 [2022-03-20 02:57:53,679 INFO L226 Difference]: Without dead ends: 512 [2022-03-20 02:57:53,679 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:57:53,680 INFO L913 BasicCegarLoop]: 126 mSDtfsCounter, 108 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 481 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 357 SdHoareTripleChecker+Invalid, 539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 481 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-03-20 02:57:53,680 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 357 Invalid, 539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 481 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2022-03-20 02:57:53,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 512 states. [2022-03-20 02:57:53,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 512 to 440. [2022-03-20 02:57:53,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 440 states, 435 states have (on average 1.5586206896551724) internal successors, (678), 435 states have internal predecessors, (678), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:57:53,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 440 states to 440 states and 682 transitions. [2022-03-20 02:57:53,687 INFO L78 Accepts]: Start accepts. Automaton has 440 states and 682 transitions. Word has length 131 [2022-03-20 02:57:53,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:57:53,687 INFO L478 AbstractCegarLoop]: Abstraction has 440 states and 682 transitions. [2022-03-20 02:57:53,687 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:57:53,687 INFO L276 IsEmpty]: Start isEmpty. Operand 440 states and 682 transitions. [2022-03-20 02:57:53,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-03-20 02:57:53,688 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:57:53,688 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:57:53,688 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-03-20 02:57:53,688 INFO L403 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:57:53,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:57:53,689 INFO L85 PathProgramCache]: Analyzing trace with hash 1250342465, now seen corresponding path program 1 times [2022-03-20 02:57:53,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:57:53,689 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [22653351] [2022-03-20 02:57:53,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:57:53,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:57:53,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:57:53,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:57:53,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:57:53,774 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 101 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-20 02:57:53,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:57:53,775 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [22653351] [2022-03-20 02:57:53,775 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [22653351] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:57:53,775 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:57:53,775 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:57:53,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451510682] [2022-03-20 02:57:53,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:57:53,775 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:57:53,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:57:53,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:57:53,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:57:53,776 INFO L87 Difference]: Start difference. First operand 440 states and 682 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:57:55,298 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:57:57,382 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:57:58,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:57:58,547 INFO L93 Difference]: Finished difference Result 943 states and 1465 transitions. [2022-03-20 02:57:58,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:57:58,548 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 131 [2022-03-20 02:57:58,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:57:58,549 INFO L225 Difference]: With dead ends: 943 [2022-03-20 02:57:58,550 INFO L226 Difference]: Without dead ends: 529 [2022-03-20 02:57:58,550 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:57:58,551 INFO L913 BasicCegarLoop]: 268 mSDtfsCounter, 95 mSDsluCounter, 377 mSDsCounter, 0 mSdLazyCounter, 604 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 645 SdHoareTripleChecker+Invalid, 613 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 604 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-03-20 02:57:58,551 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [95 Valid, 645 Invalid, 613 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 604 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2022-03-20 02:57:58,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 529 states. [2022-03-20 02:57:58,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 529 to 439. [2022-03-20 02:57:58,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 439 states, 434 states have (on average 1.5599078341013826) internal successors, (677), 434 states have internal predecessors, (677), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:57:58,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 439 states to 439 states and 681 transitions. [2022-03-20 02:57:58,561 INFO L78 Accepts]: Start accepts. Automaton has 439 states and 681 transitions. Word has length 131 [2022-03-20 02:57:58,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:57:58,561 INFO L478 AbstractCegarLoop]: Abstraction has 439 states and 681 transitions. [2022-03-20 02:57:58,561 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:57:58,561 INFO L276 IsEmpty]: Start isEmpty. Operand 439 states and 681 transitions. [2022-03-20 02:57:58,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-03-20 02:57:58,563 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:57:58,563 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:57:58,563 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-03-20 02:57:58,563 INFO L403 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:57:58,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:57:58,563 INFO L85 PathProgramCache]: Analyzing trace with hash 1992420845, now seen corresponding path program 1 times [2022-03-20 02:57:58,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:57:58,563 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952146118] [2022-03-20 02:57:58,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:57:58,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:57:58,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:57:58,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:57:58,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:57:58,655 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-20 02:57:58,655 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:57:58,655 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [952146118] [2022-03-20 02:57:58,655 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [952146118] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:57:58,655 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:57:58,655 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:57:58,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120474677] [2022-03-20 02:57:58,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:57:58,655 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:57:58,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:57:58,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:57:58,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:57:58,656 INFO L87 Difference]: Start difference. First operand 439 states and 681 transitions. Second operand has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:58:00,806 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:58:02,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:58:02,305 INFO L93 Difference]: Finished difference Result 936 states and 1454 transitions. [2022-03-20 02:58:02,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:58:02,314 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 132 [2022-03-20 02:58:02,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:58:02,315 INFO L225 Difference]: With dead ends: 936 [2022-03-20 02:58:02,315 INFO L226 Difference]: Without dead ends: 523 [2022-03-20 02:58:02,316 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:58:02,316 INFO L913 BasicCegarLoop]: 179 mSDtfsCounter, 61 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 492 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 469 SdHoareTripleChecker+Invalid, 503 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 492 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-03-20 02:58:02,316 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [61 Valid, 469 Invalid, 503 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 492 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-03-20 02:58:02,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 523 states. [2022-03-20 02:58:02,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 523 to 482. [2022-03-20 02:58:02,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 482 states, 477 states have (on average 1.559748427672956) internal successors, (744), 477 states have internal predecessors, (744), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:58:02,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 482 states to 482 states and 748 transitions. [2022-03-20 02:58:02,324 INFO L78 Accepts]: Start accepts. Automaton has 482 states and 748 transitions. Word has length 132 [2022-03-20 02:58:02,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:58:02,324 INFO L478 AbstractCegarLoop]: Abstraction has 482 states and 748 transitions. [2022-03-20 02:58:02,324 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:58:02,324 INFO L276 IsEmpty]: Start isEmpty. Operand 482 states and 748 transitions. [2022-03-20 02:58:02,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-03-20 02:58:02,325 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:58:02,325 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:58:02,325 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-03-20 02:58:02,327 INFO L403 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:58:02,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:58:02,328 INFO L85 PathProgramCache]: Analyzing trace with hash 113289899, now seen corresponding path program 1 times [2022-03-20 02:58:02,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:58:02,328 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266621054] [2022-03-20 02:58:02,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:58:02,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:58:02,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:58:02,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:58:02,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:58:02,412 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-03-20 02:58:02,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:58:02,412 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266621054] [2022-03-20 02:58:02,413 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1266621054] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:58:02,413 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:58:02,413 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:58:02,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067430569] [2022-03-20 02:58:02,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:58:02,413 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:58:02,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:58:02,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:58:02,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:58:02,414 INFO L87 Difference]: Start difference. First operand 482 states and 748 transitions. Second operand has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:58:05,256 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:58:05,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:58:05,614 INFO L93 Difference]: Finished difference Result 984 states and 1531 transitions. [2022-03-20 02:58:05,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:58:05,615 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 132 [2022-03-20 02:58:05,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:58:05,616 INFO L225 Difference]: With dead ends: 984 [2022-03-20 02:58:05,616 INFO L226 Difference]: Without dead ends: 528 [2022-03-20 02:58:05,617 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:58:05,617 INFO L913 BasicCegarLoop]: 239 mSDtfsCounter, 34 mSDsluCounter, 348 mSDsCounter, 0 mSdLazyCounter, 452 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 587 SdHoareTripleChecker+Invalid, 461 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 452 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-03-20 02:58:05,617 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 587 Invalid, 461 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 452 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-03-20 02:58:05,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 528 states. [2022-03-20 02:58:05,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 528 to 506. [2022-03-20 02:58:05,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 506 states, 501 states have (on average 1.5568862275449102) internal successors, (780), 501 states have internal predecessors, (780), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:58:05,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 506 states to 506 states and 784 transitions. [2022-03-20 02:58:05,631 INFO L78 Accepts]: Start accepts. Automaton has 506 states and 784 transitions. Word has length 132 [2022-03-20 02:58:05,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:58:05,631 INFO L478 AbstractCegarLoop]: Abstraction has 506 states and 784 transitions. [2022-03-20 02:58:05,631 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:58:05,631 INFO L276 IsEmpty]: Start isEmpty. Operand 506 states and 784 transitions. [2022-03-20 02:58:05,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-03-20 02:58:05,633 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:58:05,633 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:58:05,633 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-03-20 02:58:05,633 INFO L403 AbstractCegarLoop]: === Iteration 27 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:58:05,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:58:05,634 INFO L85 PathProgramCache]: Analyzing trace with hash 372080641, now seen corresponding path program 1 times [2022-03-20 02:58:05,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:58:05,634 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [438638736] [2022-03-20 02:58:05,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:58:05,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:58:05,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:58:05,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:58:05,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:58:05,759 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 134 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-20 02:58:05,760 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:58:05,760 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [438638736] [2022-03-20 02:58:05,760 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [438638736] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:58:05,760 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:58:05,760 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:58:05,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4000616] [2022-03-20 02:58:05,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:58:05,760 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:58:05,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:58:05,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:58:05,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:58:05,761 INFO L87 Difference]: Start difference. First operand 506 states and 784 transitions. Second operand has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:58:07,172 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:58:09,760 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:58:11,783 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:58:12,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:58:12,215 INFO L93 Difference]: Finished difference Result 1027 states and 1592 transitions. [2022-03-20 02:58:12,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:58:12,216 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 144 [2022-03-20 02:58:12,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:58:12,218 INFO L225 Difference]: With dead ends: 1027 [2022-03-20 02:58:12,218 INFO L226 Difference]: Without dead ends: 547 [2022-03-20 02:58:12,218 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:58:12,219 INFO L913 BasicCegarLoop]: 180 mSDtfsCounter, 71 mSDsluCounter, 291 mSDsCounter, 0 mSdLazyCounter, 489 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 471 SdHoareTripleChecker+Invalid, 501 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 489 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2022-03-20 02:58:12,219 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [71 Valid, 471 Invalid, 501 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 489 Invalid, 1 Unknown, 0 Unchecked, 6.4s Time] [2022-03-20 02:58:12,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 547 states. [2022-03-20 02:58:12,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 547 to 506. [2022-03-20 02:58:12,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 506 states, 501 states have (on average 1.5548902195608783) internal successors, (779), 501 states have internal predecessors, (779), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:58:12,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 506 states to 506 states and 783 transitions. [2022-03-20 02:58:12,227 INFO L78 Accepts]: Start accepts. Automaton has 506 states and 783 transitions. Word has length 144 [2022-03-20 02:58:12,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:58:12,227 INFO L478 AbstractCegarLoop]: Abstraction has 506 states and 783 transitions. [2022-03-20 02:58:12,227 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:58:12,227 INFO L276 IsEmpty]: Start isEmpty. Operand 506 states and 783 transitions. [2022-03-20 02:58:12,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-03-20 02:58:12,228 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:58:12,228 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:58:12,229 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-03-20 02:58:12,229 INFO L403 AbstractCegarLoop]: === Iteration 28 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:58:12,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:58:12,229 INFO L85 PathProgramCache]: Analyzing trace with hash 1467985308, now seen corresponding path program 1 times [2022-03-20 02:58:12,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:58:12,229 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288380406] [2022-03-20 02:58:12,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:58:12,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:58:12,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:58:12,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:58:12,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:58:12,330 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 136 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-20 02:58:12,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:58:12,331 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288380406] [2022-03-20 02:58:12,331 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [288380406] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:58:12,331 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:58:12,331 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:58:12,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501158841] [2022-03-20 02:58:12,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:58:12,332 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:58:12,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:58:12,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:58:12,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:58:12,332 INFO L87 Difference]: Start difference. First operand 506 states and 783 transitions. Second operand has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:58:14,342 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:58:16,356 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:58:18,325 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.97s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:58:18,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:58:18,810 INFO L93 Difference]: Finished difference Result 1025 states and 1588 transitions. [2022-03-20 02:58:18,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:58:18,815 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 145 [2022-03-20 02:58:18,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:58:18,817 INFO L225 Difference]: With dead ends: 1025 [2022-03-20 02:58:18,817 INFO L226 Difference]: Without dead ends: 545 [2022-03-20 02:58:18,817 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:58:18,818 INFO L913 BasicCegarLoop]: 181 mSDtfsCounter, 68 mSDsluCounter, 292 mSDsCounter, 0 mSdLazyCounter, 487 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 473 SdHoareTripleChecker+Invalid, 499 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 487 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2022-03-20 02:58:18,818 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [68 Valid, 473 Invalid, 499 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 487 Invalid, 1 Unknown, 0 Unchecked, 6.5s Time] [2022-03-20 02:58:18,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 545 states. [2022-03-20 02:58:18,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 545 to 506. [2022-03-20 02:58:18,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 506 states, 501 states have (on average 1.5528942115768463) internal successors, (778), 501 states have internal predecessors, (778), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:58:18,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 506 states to 506 states and 782 transitions. [2022-03-20 02:58:18,830 INFO L78 Accepts]: Start accepts. Automaton has 506 states and 782 transitions. Word has length 145 [2022-03-20 02:58:18,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:58:18,830 INFO L478 AbstractCegarLoop]: Abstraction has 506 states and 782 transitions. [2022-03-20 02:58:18,830 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:58:18,830 INFO L276 IsEmpty]: Start isEmpty. Operand 506 states and 782 transitions. [2022-03-20 02:58:18,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-03-20 02:58:18,831 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:58:18,831 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:58:18,831 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-03-20 02:58:18,831 INFO L403 AbstractCegarLoop]: === Iteration 29 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:58:18,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:58:18,832 INFO L85 PathProgramCache]: Analyzing trace with hash -481235982, now seen corresponding path program 1 times [2022-03-20 02:58:18,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:58:18,832 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828401277] [2022-03-20 02:58:18,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:58:18,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:58:18,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:58:18,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:58:18,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:58:18,934 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 105 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-03-20 02:58:18,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:58:18,934 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1828401277] [2022-03-20 02:58:18,935 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1828401277] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:58:18,935 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:58:18,935 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:58:18,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109379688] [2022-03-20 02:58:18,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:58:18,936 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:58:18,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:58:18,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:58:18,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:58:18,937 INFO L87 Difference]: Start difference. First operand 506 states and 782 transitions. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:58:22,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:58:22,182 INFO L93 Difference]: Finished difference Result 1024 states and 1585 transitions. [2022-03-20 02:58:22,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:58:22,183 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 146 [2022-03-20 02:58:22,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:58:22,184 INFO L225 Difference]: With dead ends: 1024 [2022-03-20 02:58:22,184 INFO L226 Difference]: Without dead ends: 544 [2022-03-20 02:58:22,185 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:58:22,185 INFO L913 BasicCegarLoop]: 182 mSDtfsCounter, 80 mSDsluCounter, 291 mSDsCounter, 0 mSdLazyCounter, 487 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 473 SdHoareTripleChecker+Invalid, 498 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 487 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-03-20 02:58:22,186 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [80 Valid, 473 Invalid, 498 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 487 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-03-20 02:58:22,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 544 states. [2022-03-20 02:58:22,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 544 to 506. [2022-03-20 02:58:22,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 506 states, 501 states have (on average 1.5508982035928143) internal successors, (777), 501 states have internal predecessors, (777), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:58:22,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 506 states to 506 states and 781 transitions. [2022-03-20 02:58:22,220 INFO L78 Accepts]: Start accepts. Automaton has 506 states and 781 transitions. Word has length 146 [2022-03-20 02:58:22,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:58:22,220 INFO L478 AbstractCegarLoop]: Abstraction has 506 states and 781 transitions. [2022-03-20 02:58:22,220 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:58:22,220 INFO L276 IsEmpty]: Start isEmpty. Operand 506 states and 781 transitions. [2022-03-20 02:58:22,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-03-20 02:58:22,221 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:58:22,222 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:58:22,222 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-03-20 02:58:22,222 INFO L403 AbstractCegarLoop]: === Iteration 30 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:58:22,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:58:22,222 INFO L85 PathProgramCache]: Analyzing trace with hash 1907328048, now seen corresponding path program 1 times [2022-03-20 02:58:22,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:58:22,222 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155552006] [2022-03-20 02:58:22,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:58:22,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:58:22,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:58:22,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:58:22,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:58:22,336 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 105 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-03-20 02:58:22,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:58:22,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155552006] [2022-03-20 02:58:22,336 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1155552006] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:58:22,336 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:58:22,337 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:58:22,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855704424] [2022-03-20 02:58:22,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:58:22,337 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:58:22,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:58:22,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:58:22,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:58:22,337 INFO L87 Difference]: Start difference. First operand 506 states and 781 transitions. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:58:23,411 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:58:25,187 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:58:26,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:58:26,144 INFO L93 Difference]: Finished difference Result 1007 states and 1559 transitions. [2022-03-20 02:58:26,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:58:26,144 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 146 [2022-03-20 02:58:26,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:58:26,146 INFO L225 Difference]: With dead ends: 1007 [2022-03-20 02:58:26,146 INFO L226 Difference]: Without dead ends: 527 [2022-03-20 02:58:26,147 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:58:26,147 INFO L913 BasicCegarLoop]: 239 mSDtfsCounter, 39 mSDsluCounter, 348 mSDsCounter, 0 mSdLazyCounter, 445 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 587 SdHoareTripleChecker+Invalid, 454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 445 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-03-20 02:58:26,147 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [39 Valid, 587 Invalid, 454 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 445 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2022-03-20 02:58:26,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 527 states. [2022-03-20 02:58:26,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 527 to 506. [2022-03-20 02:58:26,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 506 states, 501 states have (on average 1.5489021956087825) internal successors, (776), 501 states have internal predecessors, (776), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:58:26,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 506 states to 506 states and 780 transitions. [2022-03-20 02:58:26,155 INFO L78 Accepts]: Start accepts. Automaton has 506 states and 780 transitions. Word has length 146 [2022-03-20 02:58:26,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:58:26,155 INFO L478 AbstractCegarLoop]: Abstraction has 506 states and 780 transitions. [2022-03-20 02:58:26,156 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:58:26,156 INFO L276 IsEmpty]: Start isEmpty. Operand 506 states and 780 transitions. [2022-03-20 02:58:26,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-03-20 02:58:26,157 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:58:26,157 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:58:26,157 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-03-20 02:58:26,157 INFO L403 AbstractCegarLoop]: === Iteration 31 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:58:26,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:58:26,157 INFO L85 PathProgramCache]: Analyzing trace with hash 649170006, now seen corresponding path program 1 times [2022-03-20 02:58:26,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:58:26,157 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588313357] [2022-03-20 02:58:26,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:58:26,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:58:26,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:58:26,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:58:26,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:58:26,281 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 114 proven. 0 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2022-03-20 02:58:26,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:58:26,282 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588313357] [2022-03-20 02:58:26,282 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [588313357] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:58:26,282 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:58:26,282 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:58:26,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185494227] [2022-03-20 02:58:26,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:58:26,283 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:58:26,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:58:26,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:58:26,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:58:26,284 INFO L87 Difference]: Start difference. First operand 506 states and 780 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:58:27,996 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:58:29,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:58:29,336 INFO L93 Difference]: Finished difference Result 1014 states and 1569 transitions. [2022-03-20 02:58:29,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:58:29,337 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 147 [2022-03-20 02:58:29,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:58:29,338 INFO L225 Difference]: With dead ends: 1014 [2022-03-20 02:58:29,338 INFO L226 Difference]: Without dead ends: 534 [2022-03-20 02:58:29,339 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:58:29,339 INFO L913 BasicCegarLoop]: 188 mSDtfsCounter, 77 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 475 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 485 SdHoareTripleChecker+Invalid, 482 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 475 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-03-20 02:58:29,339 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [77 Valid, 485 Invalid, 482 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 475 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-03-20 02:58:29,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 534 states. [2022-03-20 02:58:29,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 534 to 506. [2022-03-20 02:58:29,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 506 states, 501 states have (on average 1.5469061876247505) internal successors, (775), 501 states have internal predecessors, (775), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:58:29,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 506 states to 506 states and 779 transitions. [2022-03-20 02:58:29,354 INFO L78 Accepts]: Start accepts. Automaton has 506 states and 779 transitions. Word has length 147 [2022-03-20 02:58:29,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:58:29,355 INFO L478 AbstractCegarLoop]: Abstraction has 506 states and 779 transitions. [2022-03-20 02:58:29,355 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:58:29,355 INFO L276 IsEmpty]: Start isEmpty. Operand 506 states and 779 transitions. [2022-03-20 02:58:29,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-03-20 02:58:29,360 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:58:29,360 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:58:29,360 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-03-20 02:58:29,360 INFO L403 AbstractCegarLoop]: === Iteration 32 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:58:29,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:58:29,361 INFO L85 PathProgramCache]: Analyzing trace with hash -1689340650, now seen corresponding path program 1 times [2022-03-20 02:58:29,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:58:29,361 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024994939] [2022-03-20 02:58:29,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:58:29,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:58:29,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:58:29,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:58:29,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:58:29,481 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 130 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-20 02:58:29,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:58:29,481 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024994939] [2022-03-20 02:58:29,481 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1024994939] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:58:29,481 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:58:29,481 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:58:29,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140576351] [2022-03-20 02:58:29,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:58:29,482 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:58:29,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:58:29,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:58:29,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:58:29,482 INFO L87 Difference]: Start difference. First operand 506 states and 779 transitions. Second operand has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:58:32,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:58:32,432 INFO L93 Difference]: Finished difference Result 1104 states and 1701 transitions. [2022-03-20 02:58:32,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:58:32,432 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 147 [2022-03-20 02:58:32,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:58:32,434 INFO L225 Difference]: With dead ends: 1104 [2022-03-20 02:58:32,434 INFO L226 Difference]: Without dead ends: 624 [2022-03-20 02:58:32,435 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:58:32,435 INFO L913 BasicCegarLoop]: 126 mSDtfsCounter, 124 mSDsluCounter, 230 mSDsCounter, 0 mSdLazyCounter, 481 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 356 SdHoareTripleChecker+Invalid, 538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 481 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-03-20 02:58:32,435 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [124 Valid, 356 Invalid, 538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 481 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-03-20 02:58:32,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 624 states. [2022-03-20 02:58:32,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 624 to 534. [2022-03-20 02:58:32,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 534 states, 529 states have (on average 1.5387523629489603) internal successors, (814), 529 states have internal predecessors, (814), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:58:32,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 534 states to 534 states and 818 transitions. [2022-03-20 02:58:32,444 INFO L78 Accepts]: Start accepts. Automaton has 534 states and 818 transitions. Word has length 147 [2022-03-20 02:58:32,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:58:32,444 INFO L478 AbstractCegarLoop]: Abstraction has 534 states and 818 transitions. [2022-03-20 02:58:32,444 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:58:32,444 INFO L276 IsEmpty]: Start isEmpty. Operand 534 states and 818 transitions. [2022-03-20 02:58:32,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-03-20 02:58:32,445 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:58:32,445 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:58:32,445 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-03-20 02:58:32,445 INFO L403 AbstractCegarLoop]: === Iteration 33 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:58:32,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:58:32,446 INFO L85 PathProgramCache]: Analyzing trace with hash 1680210904, now seen corresponding path program 1 times [2022-03-20 02:58:32,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:58:32,446 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752971743] [2022-03-20 02:58:32,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:58:32,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:58:32,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:58:32,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:58:32,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:58:32,542 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 114 proven. 0 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2022-03-20 02:58:32,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:58:32,542 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752971743] [2022-03-20 02:58:32,542 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1752971743] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:58:32,542 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:58:32,542 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:58:32,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563331421] [2022-03-20 02:58:32,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:58:32,543 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:58:32,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:58:32,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:58:32,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:58:32,544 INFO L87 Difference]: Start difference. First operand 534 states and 818 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:58:35,235 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:58:37,261 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:58:38,339 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:58:38,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:58:38,671 INFO L93 Difference]: Finished difference Result 1053 states and 1621 transitions. [2022-03-20 02:58:38,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:58:38,672 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 147 [2022-03-20 02:58:38,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:58:38,673 INFO L225 Difference]: With dead ends: 1053 [2022-03-20 02:58:38,673 INFO L226 Difference]: Without dead ends: 545 [2022-03-20 02:58:38,674 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:58:38,674 INFO L913 BasicCegarLoop]: 232 mSDtfsCounter, 36 mSDsluCounter, 341 mSDsCounter, 0 mSdLazyCounter, 417 mSolverCounterSat, 5 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 573 SdHoareTripleChecker+Invalid, 424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 417 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-03-20 02:58:38,675 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 573 Invalid, 424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 417 Invalid, 2 Unknown, 0 Unchecked, 6.1s Time] [2022-03-20 02:58:38,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 545 states. [2022-03-20 02:58:38,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 545 to 534. [2022-03-20 02:58:38,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 534 states, 529 states have (on average 1.5368620037807184) internal successors, (813), 529 states have internal predecessors, (813), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:58:38,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 534 states to 534 states and 817 transitions. [2022-03-20 02:58:38,683 INFO L78 Accepts]: Start accepts. Automaton has 534 states and 817 transitions. Word has length 147 [2022-03-20 02:58:38,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:58:38,684 INFO L478 AbstractCegarLoop]: Abstraction has 534 states and 817 transitions. [2022-03-20 02:58:38,684 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:58:38,684 INFO L276 IsEmpty]: Start isEmpty. Operand 534 states and 817 transitions. [2022-03-20 02:58:38,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-03-20 02:58:38,703 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:58:38,703 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:58:38,703 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-03-20 02:58:38,704 INFO L403 AbstractCegarLoop]: === Iteration 34 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:58:38,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:58:38,704 INFO L85 PathProgramCache]: Analyzing trace with hash -1375240965, now seen corresponding path program 1 times [2022-03-20 02:58:38,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:58:38,704 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375835037] [2022-03-20 02:58:38,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:58:38,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:58:38,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:58:38,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:58:38,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:58:38,801 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-20 02:58:38,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:58:38,801 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1375835037] [2022-03-20 02:58:38,801 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1375835037] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:58:38,802 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:58:38,802 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:58:38,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771233212] [2022-03-20 02:58:38,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:58:38,802 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:58:38,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:58:38,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:58:38,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:58:38,805 INFO L87 Difference]: Start difference. First operand 534 states and 817 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) [2022-03-20 02:58:39,936 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:58:41,379 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:58:42,918 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:58:44,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:58:44,117 INFO L93 Difference]: Finished difference Result 1117 states and 1707 transitions. [2022-03-20 02:58:44,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:58:44,117 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 148 [2022-03-20 02:58:44,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:58:44,119 INFO L225 Difference]: With dead ends: 1117 [2022-03-20 02:58:44,119 INFO L226 Difference]: Without dead ends: 609 [2022-03-20 02:58:44,120 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:58:44,120 INFO L913 BasicCegarLoop]: 126 mSDtfsCounter, 123 mSDsluCounter, 230 mSDsCounter, 0 mSdLazyCounter, 480 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 356 SdHoareTripleChecker+Invalid, 539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 480 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-03-20 02:58:44,120 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [123 Valid, 356 Invalid, 539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 480 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2022-03-20 02:58:44,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 609 states. [2022-03-20 02:58:44,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 609 to 534. [2022-03-20 02:58:44,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 534 states, 529 states have (on average 1.5236294896030245) internal successors, (806), 529 states have internal predecessors, (806), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:58:44,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 534 states to 534 states and 810 transitions. [2022-03-20 02:58:44,130 INFO L78 Accepts]: Start accepts. Automaton has 534 states and 810 transitions. Word has length 148 [2022-03-20 02:58:44,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:58:44,130 INFO L478 AbstractCegarLoop]: Abstraction has 534 states and 810 transitions. [2022-03-20 02:58:44,130 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:58:44,130 INFO L276 IsEmpty]: Start isEmpty. Operand 534 states and 810 transitions. [2022-03-20 02:58:44,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-03-20 02:58:44,131 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:58:44,131 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 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, 1, 1] [2022-03-20 02:58:44,131 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-03-20 02:58:44,131 INFO L403 AbstractCegarLoop]: === Iteration 35 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:58:44,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:58:44,132 INFO L85 PathProgramCache]: Analyzing trace with hash -1542457763, now seen corresponding path program 1 times [2022-03-20 02:58:44,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:58:44,132 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888775142] [2022-03-20 02:58:44,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:58:44,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:58:44,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:58:44,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:58:44,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:58:44,239 INFO L134 CoverageAnalysis]: Checked inductivity of 217 backedges. 155 proven. 0 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2022-03-20 02:58:44,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:58:44,239 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [888775142] [2022-03-20 02:58:44,239 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [888775142] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:58:44,239 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:58:44,239 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:58:44,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867009518] [2022-03-20 02:58:44,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:58:44,240 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:58:44,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:58:44,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:58:44,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:58:44,240 INFO L87 Difference]: Start difference. First operand 534 states and 810 transitions. Second operand has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:58:46,910 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:58:49,301 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:58:49,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:58:49,664 INFO L93 Difference]: Finished difference Result 1062 states and 1616 transitions. [2022-03-20 02:58:49,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:58:49,664 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 153 [2022-03-20 02:58:49,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:58:49,666 INFO L225 Difference]: With dead ends: 1062 [2022-03-20 02:58:49,666 INFO L226 Difference]: Without dead ends: 554 [2022-03-20 02:58:49,667 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:58:49,667 INFO L913 BasicCegarLoop]: 202 mSDtfsCounter, 54 mSDsluCounter, 313 mSDsCounter, 0 mSdLazyCounter, 461 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 515 SdHoareTripleChecker+Invalid, 469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 461 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-03-20 02:58:49,667 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [54 Valid, 515 Invalid, 469 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 461 Invalid, 1 Unknown, 0 Unchecked, 5.4s Time] [2022-03-20 02:58:49,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 554 states. [2022-03-20 02:58:49,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 554 to 534. [2022-03-20 02:58:49,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 534 states, 529 states have (on average 1.5217391304347827) internal successors, (805), 529 states have internal predecessors, (805), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:58:49,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 534 states to 534 states and 809 transitions. [2022-03-20 02:58:49,676 INFO L78 Accepts]: Start accepts. Automaton has 534 states and 809 transitions. Word has length 153 [2022-03-20 02:58:49,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:58:49,676 INFO L478 AbstractCegarLoop]: Abstraction has 534 states and 809 transitions. [2022-03-20 02:58:49,676 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:58:49,677 INFO L276 IsEmpty]: Start isEmpty. Operand 534 states and 809 transitions. [2022-03-20 02:58:49,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-03-20 02:58:49,677 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:58:49,677 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 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, 1, 1] [2022-03-20 02:58:49,678 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-03-20 02:58:49,678 INFO L403 AbstractCegarLoop]: === Iteration 36 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:58:49,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:58:49,678 INFO L85 PathProgramCache]: Analyzing trace with hash -1424016289, now seen corresponding path program 1 times [2022-03-20 02:58:49,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:58:49,678 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699093015] [2022-03-20 02:58:49,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:58:49,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:58:49,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:58:49,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:58:49,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:58:49,768 INFO L134 CoverageAnalysis]: Checked inductivity of 217 backedges. 151 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-03-20 02:58:49,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:58:49,768 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699093015] [2022-03-20 02:58:49,768 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1699093015] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:58:49,769 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:58:49,769 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:58:49,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384448552] [2022-03-20 02:58:49,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:58:49,769 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:58:49,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:58:49,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:58:49,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:58:49,770 INFO L87 Difference]: Start difference. First operand 534 states and 809 transitions. Second operand has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:58:52,874 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 [] [2022-03-20 02:58:53,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:58:53,888 INFO L93 Difference]: Finished difference Result 1123 states and 1704 transitions. [2022-03-20 02:58:53,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:58:53,888 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 153 [2022-03-20 02:58:53,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:58:53,890 INFO L225 Difference]: With dead ends: 1123 [2022-03-20 02:58:53,890 INFO L226 Difference]: Without dead ends: 615 [2022-03-20 02:58:53,891 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:58:53,891 INFO L913 BasicCegarLoop]: 232 mSDtfsCounter, 84 mSDsluCounter, 341 mSDsCounter, 0 mSdLazyCounter, 530 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 573 SdHoareTripleChecker+Invalid, 539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 530 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-03-20 02:58:53,891 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [84 Valid, 573 Invalid, 539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 530 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-03-20 02:58:53,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 615 states. [2022-03-20 02:58:53,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 615 to 534. [2022-03-20 02:58:53,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 534 states, 529 states have (on average 1.5217391304347827) internal successors, (805), 529 states have internal predecessors, (805), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:58:53,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 534 states to 534 states and 809 transitions. [2022-03-20 02:58:53,901 INFO L78 Accepts]: Start accepts. Automaton has 534 states and 809 transitions. Word has length 153 [2022-03-20 02:58:53,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:58:53,901 INFO L478 AbstractCegarLoop]: Abstraction has 534 states and 809 transitions. [2022-03-20 02:58:53,901 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:58:53,901 INFO L276 IsEmpty]: Start isEmpty. Operand 534 states and 809 transitions. [2022-03-20 02:58:53,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-03-20 02:58:53,902 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:58:53,902 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:58:53,902 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-03-20 02:58:53,903 INFO L403 AbstractCegarLoop]: === Iteration 37 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:58:53,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:58:53,903 INFO L85 PathProgramCache]: Analyzing trace with hash 119393834, now seen corresponding path program 1 times [2022-03-20 02:58:53,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:58:53,903 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222426239] [2022-03-20 02:58:53,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:58:53,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:58:53,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:58:53,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:58:53,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:58:54,003 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 144 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-03-20 02:58:54,003 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:58:54,003 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1222426239] [2022-03-20 02:58:54,003 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1222426239] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:58:54,003 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:58:54,003 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:58:54,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29409749] [2022-03-20 02:58:54,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:58:54,004 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:58:54,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:58:54,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:58:54,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:58:54,004 INFO L87 Difference]: Start difference. First operand 534 states and 809 transitions. Second operand has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:58:57,458 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:58:58,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:58:58,503 INFO L93 Difference]: Finished difference Result 1160 states and 1759 transitions. [2022-03-20 02:58:58,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:58:58,503 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 154 [2022-03-20 02:58:58,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:58:58,505 INFO L225 Difference]: With dead ends: 1160 [2022-03-20 02:58:58,505 INFO L226 Difference]: Without dead ends: 652 [2022-03-20 02:58:58,506 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:58:58,506 INFO L913 BasicCegarLoop]: 116 mSDtfsCounter, 116 mSDsluCounter, 220 mSDsCounter, 0 mSdLazyCounter, 470 mSolverCounterSat, 59 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 336 SdHoareTripleChecker+Invalid, 530 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 470 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-03-20 02:58:58,506 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [116 Valid, 336 Invalid, 530 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 470 Invalid, 1 Unknown, 0 Unchecked, 4.5s Time] [2022-03-20 02:58:58,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 652 states. [2022-03-20 02:58:58,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 652 to 569. [2022-03-20 02:58:58,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 569 states, 564 states have (on average 1.5195035460992907) internal successors, (857), 564 states have internal predecessors, (857), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:58:58,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 569 states to 569 states and 861 transitions. [2022-03-20 02:58:58,517 INFO L78 Accepts]: Start accepts. Automaton has 569 states and 861 transitions. Word has length 154 [2022-03-20 02:58:58,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:58:58,517 INFO L478 AbstractCegarLoop]: Abstraction has 569 states and 861 transitions. [2022-03-20 02:58:58,517 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:58:58,517 INFO L276 IsEmpty]: Start isEmpty. Operand 569 states and 861 transitions. [2022-03-20 02:58:58,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-03-20 02:58:58,518 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:58:58,518 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:58:58,518 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-03-20 02:58:58,518 INFO L403 AbstractCegarLoop]: === Iteration 38 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:58:58,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:58:58,519 INFO L85 PathProgramCache]: Analyzing trace with hash -1187452851, now seen corresponding path program 1 times [2022-03-20 02:58:58,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:58:58,519 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713310493] [2022-03-20 02:58:58,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:58:58,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:58:58,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:58:58,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:58:58,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:58:58,609 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 137 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-03-20 02:58:58,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:58:58,609 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713310493] [2022-03-20 02:58:58,609 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1713310493] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:58:58,609 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:58:58,610 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 02:58:58,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26027072] [2022-03-20 02:58:58,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:58:58,610 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 02:58:58,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:58:58,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 02:58:58,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 02:58:58,610 INFO L87 Difference]: Start difference. First operand 569 states and 861 transitions. Second operand has 4 states, 4 states have (on average 30.5) internal successors, (122), 3 states have internal predecessors, (122), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:59:00,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:59:00,965 INFO L93 Difference]: Finished difference Result 1610 states and 2456 transitions. [2022-03-20 02:59:00,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 02:59:00,966 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.5) internal successors, (122), 3 states have internal predecessors, (122), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 154 [2022-03-20 02:59:00,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:59:00,968 INFO L225 Difference]: With dead ends: 1610 [2022-03-20 02:59:00,969 INFO L226 Difference]: Without dead ends: 1067 [2022-03-20 02:59:00,969 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 02:59:00,970 INFO L913 BasicCegarLoop]: 249 mSDtfsCounter, 132 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 282 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 443 SdHoareTripleChecker+Invalid, 290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-20 02:59:00,970 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [132 Valid, 443 Invalid, 290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 282 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-03-20 02:59:00,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1067 states. [2022-03-20 02:59:00,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1067 to 1067. [2022-03-20 02:59:00,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1067 states, 1062 states have (on average 1.5197740112994351) internal successors, (1614), 1062 states have internal predecessors, (1614), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:59:00,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1067 states to 1067 states and 1618 transitions. [2022-03-20 02:59:00,998 INFO L78 Accepts]: Start accepts. Automaton has 1067 states and 1618 transitions. Word has length 154 [2022-03-20 02:59:00,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:59:00,998 INFO L478 AbstractCegarLoop]: Abstraction has 1067 states and 1618 transitions. [2022-03-20 02:59:00,998 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.5) internal successors, (122), 3 states have internal predecessors, (122), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:59:00,998 INFO L276 IsEmpty]: Start isEmpty. Operand 1067 states and 1618 transitions. [2022-03-20 02:59:00,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-03-20 02:59:01,000 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:59:01,000 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:59:01,000 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-03-20 02:59:01,000 INFO L403 AbstractCegarLoop]: === Iteration 39 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:59:01,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:59:01,000 INFO L85 PathProgramCache]: Analyzing trace with hash 1134349067, now seen corresponding path program 1 times [2022-03-20 02:59:01,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:59:01,000 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960656513] [2022-03-20 02:59:01,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:59:01,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:59:01,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:59:01,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:59:01,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:59:01,082 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-03-20 02:59:01,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:59:01,082 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960656513] [2022-03-20 02:59:01,082 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [960656513] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:59:01,082 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:59:01,083 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 02:59:01,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644435869] [2022-03-20 02:59:01,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:59:01,083 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 02:59:01,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:59:01,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 02:59:01,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 02:59:01,083 INFO L87 Difference]: Start difference. First operand 1067 states and 1618 transitions. Second operand has 4 states, 4 states have (on average 24.75) internal successors, (99), 3 states have internal predecessors, (99), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:59:02,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:59:02,514 INFO L93 Difference]: Finished difference Result 2135 states and 3243 transitions. [2022-03-20 02:59:02,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 02:59:02,514 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.75) internal successors, (99), 3 states have internal predecessors, (99), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 154 [2022-03-20 02:59:02,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:59:02,517 INFO L225 Difference]: With dead ends: 2135 [2022-03-20 02:59:02,517 INFO L226 Difference]: Without dead ends: 1094 [2022-03-20 02:59:02,518 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 02:59:02,519 INFO L913 BasicCegarLoop]: 219 mSDtfsCounter, 15 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 242 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 413 SdHoareTripleChecker+Invalid, 245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-03-20 02:59:02,519 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 413 Invalid, 245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 242 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-03-20 02:59:02,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1094 states. [2022-03-20 02:59:02,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1094 to 1094. [2022-03-20 02:59:02,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1094 states, 1089 states have (on average 1.5142332415059687) internal successors, (1649), 1089 states have internal predecessors, (1649), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:59:02,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1094 states to 1094 states and 1653 transitions. [2022-03-20 02:59:02,538 INFO L78 Accepts]: Start accepts. Automaton has 1094 states and 1653 transitions. Word has length 154 [2022-03-20 02:59:02,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:59:02,538 INFO L478 AbstractCegarLoop]: Abstraction has 1094 states and 1653 transitions. [2022-03-20 02:59:02,538 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.75) internal successors, (99), 3 states have internal predecessors, (99), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:59:02,538 INFO L276 IsEmpty]: Start isEmpty. Operand 1094 states and 1653 transitions. [2022-03-20 02:59:02,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-03-20 02:59:02,543 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:59:02,543 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:59:02,543 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-03-20 02:59:02,543 INFO L403 AbstractCegarLoop]: === Iteration 40 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:59:02,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:59:02,544 INFO L85 PathProgramCache]: Analyzing trace with hash 549577417, now seen corresponding path program 1 times [2022-03-20 02:59:02,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:59:02,544 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597559546] [2022-03-20 02:59:02,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:59:02,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:59:02,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:59:02,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:59:02,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:59:02,654 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2022-03-20 02:59:02,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:59:02,654 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597559546] [2022-03-20 02:59:02,654 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [597559546] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:59:02,654 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:59:02,654 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 02:59:02,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648709794] [2022-03-20 02:59:02,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:59:02,654 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 02:59:02,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:59:02,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 02:59:02,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 02:59:02,655 INFO L87 Difference]: Start difference. First operand 1094 states and 1653 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) [2022-03-20 02:59:03,942 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:59:05,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:59:05,672 INFO L93 Difference]: Finished difference Result 2164 states and 3279 transitions. [2022-03-20 02:59:05,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 02:59:05,672 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 154 [2022-03-20 02:59:05,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:59:05,675 INFO L225 Difference]: With dead ends: 2164 [2022-03-20 02:59:05,675 INFO L226 Difference]: Without dead ends: 1096 [2022-03-20 02:59:05,677 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 02:59:05,677 INFO L913 BasicCegarLoop]: 207 mSDtfsCounter, 4 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 228 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 392 SdHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-03-20 02:59:05,677 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 392 Invalid, 230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 228 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-03-20 02:59:05,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1096 states. [2022-03-20 02:59:05,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1096 to 1096. [2022-03-20 02:59:05,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1096 states, 1091 states have (on average 1.5132905591200734) internal successors, (1651), 1091 states have internal predecessors, (1651), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:59:05,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1096 states to 1096 states and 1655 transitions. [2022-03-20 02:59:05,695 INFO L78 Accepts]: Start accepts. Automaton has 1096 states and 1655 transitions. Word has length 154 [2022-03-20 02:59:05,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:59:05,696 INFO L478 AbstractCegarLoop]: Abstraction has 1096 states and 1655 transitions. [2022-03-20 02:59:05,696 INFO L479 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) [2022-03-20 02:59:05,696 INFO L276 IsEmpty]: Start isEmpty. Operand 1096 states and 1655 transitions. [2022-03-20 02:59:05,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2022-03-20 02:59:05,697 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:59:05,697 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 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] [2022-03-20 02:59:05,697 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-03-20 02:59:05,698 INFO L403 AbstractCegarLoop]: === Iteration 41 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:59:05,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:59:05,698 INFO L85 PathProgramCache]: Analyzing trace with hash 139287569, now seen corresponding path program 1 times [2022-03-20 02:59:05,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:59:05,698 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223009634] [2022-03-20 02:59:05,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:59:05,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:59:05,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:59:05,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:59:05,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:59:05,830 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 174 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-03-20 02:59:05,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:59:05,831 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1223009634] [2022-03-20 02:59:05,831 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1223009634] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:59:05,831 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:59:05,831 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:59:05,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58799035] [2022-03-20 02:59:05,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:59:05,832 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:59:05,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:59:05,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:59:05,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:59:05,834 INFO L87 Difference]: Start difference. First operand 1096 states and 1655 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) [2022-03-20 02:59:07,206 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:59:09,787 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:59:10,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:59:10,228 INFO L93 Difference]: Finished difference Result 2208 states and 3336 transitions. [2022-03-20 02:59:10,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:59:10,243 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 172 [2022-03-20 02:59:10,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:59:10,246 INFO L225 Difference]: With dead ends: 2208 [2022-03-20 02:59:10,247 INFO L226 Difference]: Without dead ends: 1140 [2022-03-20 02:59:10,248 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:59:10,248 INFO L913 BasicCegarLoop]: 259 mSDtfsCounter, 84 mSDsluCounter, 367 mSDsCounter, 0 mSdLazyCounter, 561 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 626 SdHoareTripleChecker+Invalid, 571 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 561 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-03-20 02:59:10,248 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [84 Valid, 626 Invalid, 571 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 561 Invalid, 1 Unknown, 0 Unchecked, 4.3s Time] [2022-03-20 02:59:10,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1140 states. [2022-03-20 02:59:10,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1140 to 1096. [2022-03-20 02:59:10,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1096 states, 1091 states have (on average 1.5123739688359303) internal successors, (1650), 1091 states have internal predecessors, (1650), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:59:10,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1096 states to 1096 states and 1654 transitions. [2022-03-20 02:59:10,268 INFO L78 Accepts]: Start accepts. Automaton has 1096 states and 1654 transitions. Word has length 172 [2022-03-20 02:59:10,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:59:10,268 INFO L478 AbstractCegarLoop]: Abstraction has 1096 states and 1654 transitions. [2022-03-20 02:59:10,269 INFO L479 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) [2022-03-20 02:59:10,269 INFO L276 IsEmpty]: Start isEmpty. Operand 1096 states and 1654 transitions. [2022-03-20 02:59:10,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2022-03-20 02:59:10,270 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:59:10,270 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:59:10,270 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-03-20 02:59:10,270 INFO L403 AbstractCegarLoop]: === Iteration 42 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:59:10,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:59:10,271 INFO L85 PathProgramCache]: Analyzing trace with hash 1273813535, now seen corresponding path program 1 times [2022-03-20 02:59:10,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:59:10,271 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267931336] [2022-03-20 02:59:10,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:59:10,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:59:10,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:59:10,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:59:10,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:59:10,411 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2022-03-20 02:59:10,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:59:10,411 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [267931336] [2022-03-20 02:59:10,411 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [267931336] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:59:10,411 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:59:10,412 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 02:59:10,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701532744] [2022-03-20 02:59:10,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:59:10,412 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 02:59:10,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:59:10,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 02:59:10,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 02:59:10,412 INFO L87 Difference]: Start difference. First operand 1096 states and 1654 transitions. Second operand has 4 states, 4 states have (on average 26.75) internal successors, (107), 3 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:59:12,419 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:59:12,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:59:12,811 INFO L93 Difference]: Finished difference Result 2700 states and 4098 transitions. [2022-03-20 02:59:12,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 02:59:12,811 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.75) internal successors, (107), 3 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 172 [2022-03-20 02:59:12,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:59:12,816 INFO L225 Difference]: With dead ends: 2700 [2022-03-20 02:59:12,816 INFO L226 Difference]: Without dead ends: 1632 [2022-03-20 02:59:12,818 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 02:59:12,819 INFO L913 BasicCegarLoop]: 378 mSDtfsCounter, 139 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 408 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 572 SdHoareTripleChecker+Invalid, 417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 408 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 02:59:12,821 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [139 Valid, 572 Invalid, 417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 408 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 02:59:12,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1632 states. [2022-03-20 02:59:12,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1632 to 1632. [2022-03-20 02:59:12,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1632 states, 1627 states have (on average 1.515058389674247) internal successors, (2465), 1627 states have internal predecessors, (2465), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:59:12,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1632 states to 1632 states and 2469 transitions. [2022-03-20 02:59:12,849 INFO L78 Accepts]: Start accepts. Automaton has 1632 states and 2469 transitions. Word has length 172 [2022-03-20 02:59:12,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:59:12,849 INFO L478 AbstractCegarLoop]: Abstraction has 1632 states and 2469 transitions. [2022-03-20 02:59:12,849 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.75) internal successors, (107), 3 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:59:12,850 INFO L276 IsEmpty]: Start isEmpty. Operand 1632 states and 2469 transitions. [2022-03-20 02:59:12,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-03-20 02:59:12,851 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:59:12,851 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:59:12,851 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-03-20 02:59:12,851 INFO L403 AbstractCegarLoop]: === Iteration 43 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:59:12,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:59:12,852 INFO L85 PathProgramCache]: Analyzing trace with hash -1092926880, now seen corresponding path program 1 times [2022-03-20 02:59:12,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:59:12,852 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500315204] [2022-03-20 02:59:12,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:59:12,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:59:12,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:59:13,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:59:13,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:59:13,017 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 160 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-03-20 02:59:13,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:59:13,019 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500315204] [2022-03-20 02:59:13,019 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [500315204] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:59:13,019 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:59:13,019 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 02:59:13,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900791297] [2022-03-20 02:59:13,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:59:13,020 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 02:59:13,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:59:13,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 02:59:13,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 02:59:13,020 INFO L87 Difference]: Start difference. First operand 1632 states and 2469 transitions. Second operand has 4 states, 4 states have (on average 35.75) internal successors, (143), 3 states have internal predecessors, (143), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:59:14,139 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 [] [2022-03-20 02:59:16,155 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:59:17,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:59:17,061 INFO L93 Difference]: Finished difference Result 3740 states and 5676 transitions. [2022-03-20 02:59:17,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 02:59:17,061 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.75) internal successors, (143), 3 states have internal predecessors, (143), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 173 [2022-03-20 02:59:17,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:59:17,067 INFO L225 Difference]: With dead ends: 3740 [2022-03-20 02:59:17,067 INFO L226 Difference]: Without dead ends: 2136 [2022-03-20 02:59:17,069 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 02:59:17,070 INFO L913 BasicCegarLoop]: 373 mSDtfsCounter, 136 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 405 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 567 SdHoareTripleChecker+Invalid, 414 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 405 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-03-20 02:59:17,070 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [136 Valid, 567 Invalid, 414 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 405 Invalid, 1 Unknown, 0 Unchecked, 4.0s Time] [2022-03-20 02:59:17,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2136 states. [2022-03-20 02:59:17,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2136 to 2136. [2022-03-20 02:59:17,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2136 states, 2131 states have (on average 1.5147817925856406) internal successors, (3228), 2131 states have internal predecessors, (3228), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:59:17,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2136 states to 2136 states and 3232 transitions. [2022-03-20 02:59:17,149 INFO L78 Accepts]: Start accepts. Automaton has 2136 states and 3232 transitions. Word has length 173 [2022-03-20 02:59:17,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:59:17,150 INFO L478 AbstractCegarLoop]: Abstraction has 2136 states and 3232 transitions. [2022-03-20 02:59:17,150 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.75) internal successors, (143), 3 states have internal predecessors, (143), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:59:17,150 INFO L276 IsEmpty]: Start isEmpty. Operand 2136 states and 3232 transitions. [2022-03-20 02:59:17,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2022-03-20 02:59:17,152 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:59:17,153 INFO L499 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, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:59:17,153 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-03-20 02:59:17,153 INFO L403 AbstractCegarLoop]: === Iteration 44 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:59:17,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:59:17,153 INFO L85 PathProgramCache]: Analyzing trace with hash 603658095, now seen corresponding path program 1 times [2022-03-20 02:59:17,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:59:17,153 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518615777] [2022-03-20 02:59:17,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:59:17,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:59:17,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:59:17,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:59:17,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:59:17,265 INFO L134 CoverageAnalysis]: Checked inductivity of 506 backedges. 307 proven. 0 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2022-03-20 02:59:17,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:59:17,266 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [518615777] [2022-03-20 02:59:17,266 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [518615777] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:59:17,266 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:59:17,266 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 02:59:17,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730677270] [2022-03-20 02:59:17,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:59:17,266 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 02:59:17,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:59:17,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 02:59:17,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 02:59:17,267 INFO L87 Difference]: Start difference. First operand 2136 states and 3232 transitions. Second operand has 4 states, 4 states have (on average 39.5) internal successors, (158), 3 states have internal predecessors, (158), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:59:18,578 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 [] [2022-03-20 02:59:19,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:59:19,138 INFO L93 Difference]: Finished difference Result 4785 states and 7261 transitions. [2022-03-20 02:59:19,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 02:59:19,138 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.5) internal successors, (158), 3 states have internal predecessors, (158), 1 states have call successors, (3), 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 256 [2022-03-20 02:59:19,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:59:19,145 INFO L225 Difference]: With dead ends: 4785 [2022-03-20 02:59:19,145 INFO L226 Difference]: Without dead ends: 2677 [2022-03-20 02:59:19,147 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 02:59:19,147 INFO L913 BasicCegarLoop]: 194 mSDtfsCounter, 148 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 236 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 379 SdHoareTripleChecker+Invalid, 248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-03-20 02:59:19,148 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 379 Invalid, 248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 236 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-03-20 02:59:19,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2677 states. [2022-03-20 02:59:19,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2677 to 2677. [2022-03-20 02:59:19,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2677 states, 2672 states have (on average 1.5175898203592815) internal successors, (4055), 2672 states have internal predecessors, (4055), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:59:19,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2677 states to 2677 states and 4059 transitions. [2022-03-20 02:59:19,194 INFO L78 Accepts]: Start accepts. Automaton has 2677 states and 4059 transitions. Word has length 256 [2022-03-20 02:59:19,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:59:19,194 INFO L478 AbstractCegarLoop]: Abstraction has 2677 states and 4059 transitions. [2022-03-20 02:59:19,194 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.5) internal successors, (158), 3 states have internal predecessors, (158), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:59:19,194 INFO L276 IsEmpty]: Start isEmpty. Operand 2677 states and 4059 transitions. [2022-03-20 02:59:19,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2022-03-20 02:59:19,198 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:59:19,198 INFO L499 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, 6, 6, 6, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:59:19,198 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-03-20 02:59:19,198 INFO L403 AbstractCegarLoop]: === Iteration 45 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:59:19,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:59:19,198 INFO L85 PathProgramCache]: Analyzing trace with hash 2103156925, now seen corresponding path program 1 times [2022-03-20 02:59:19,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:59:19,199 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147676110] [2022-03-20 02:59:19,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:59:19,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:59:19,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:59:19,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:59:19,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:59:19,651 INFO L134 CoverageAnalysis]: Checked inductivity of 715 backedges. 507 proven. 105 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2022-03-20 02:59:19,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:59:19,651 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1147676110] [2022-03-20 02:59:19,651 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1147676110] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-20 02:59:19,651 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1679195577] [2022-03-20 02:59:19,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:59:19,651 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 02:59:19,652 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 02:59:19,675 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-20 02:59:19,678 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-03-20 02:59:20,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:59:20,569 INFO L263 TraceCheckSpWp]: Trace formula consists of 1577 conjuncts, 21 conjunts are in the unsatisfiable core [2022-03-20 02:59:20,582 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-20 02:59:20,656 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-20 02:59:20,656 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 [2022-03-20 02:59:20,710 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-03-20 02:59:20,711 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 [2022-03-20 02:59:20,798 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 6 treesize of output 5 [2022-03-20 02:59:20,816 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 [2022-03-20 02:59:20,818 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 [2022-03-20 02:59:20,831 INFO L356 Elim1Store]: treesize reduction 25, result has 43.2 percent of original size [2022-03-20 02:59:20,832 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 24 treesize of output 33 [2022-03-20 02:59:20,892 INFO L356 Elim1Store]: treesize reduction 66, result has 30.5 percent of original size [2022-03-20 02:59:20,892 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 33 treesize of output 45 [2022-03-20 02:59:20,974 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 [2022-03-20 02:59:21,134 INFO L134 CoverageAnalysis]: Checked inductivity of 715 backedges. 502 proven. 51 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2022-03-20 02:59:21,134 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-20 02:59:21,385 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 [2022-03-20 02:59:21,388 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 [2022-03-20 02:59:25,408 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 74 treesize of output 72 [2022-03-20 02:59:25,414 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 74 treesize of output 70 [2022-03-20 02:59:25,417 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 80 treesize of output 64 [2022-03-20 02:59:25,606 INFO L134 CoverageAnalysis]: Checked inductivity of 715 backedges. 508 proven. 0 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2022-03-20 02:59:25,606 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1679195577] provided 1 perfect and 1 imperfect interpolant sequences [2022-03-20 02:59:25,606 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-03-20 02:59:25,607 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [11, 7] total 15 [2022-03-20 02:59:25,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41547314] [2022-03-20 02:59:25,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:59:25,609 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:59:25,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:59:25,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:59:25,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=170, Unknown=1, NotChecked=0, Total=210 [2022-03-20 02:59:25,610 INFO L87 Difference]: Start difference. First operand 2677 states and 4059 transitions. Second operand has 5 states, 5 states have (on average 32.8) internal successors, (164), 5 states have internal predecessors, (164), 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) [2022-03-20 02:59:27,223 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:59:27,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:59:27,702 INFO L93 Difference]: Finished difference Result 7131 states and 10835 transitions. [2022-03-20 02:59:27,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:59:27,702 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.8) internal successors, (164), 5 states have internal predecessors, (164), 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 297 [2022-03-20 02:59:27,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:59:27,720 INFO L225 Difference]: With dead ends: 7131 [2022-03-20 02:59:27,720 INFO L226 Difference]: Without dead ends: 4482 [2022-03-20 02:59:27,724 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 609 GetRequests, 595 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=46, Invalid=193, Unknown=1, NotChecked=0, Total=240 [2022-03-20 02:59:27,724 INFO L913 BasicCegarLoop]: 298 mSDtfsCounter, 114 mSDsluCounter, 515 mSDsCounter, 0 mSdLazyCounter, 286 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 813 SdHoareTripleChecker+Invalid, 417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 101 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-03-20 02:59:27,725 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [114 Valid, 813 Invalid, 417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 286 Invalid, 0 Unknown, 101 Unchecked, 2.0s Time] [2022-03-20 02:59:27,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4482 states. [2022-03-20 02:59:27,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4482 to 4312. [2022-03-20 02:59:27,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4312 states, 4307 states have (on average 1.5289064313907592) internal successors, (6585), 4307 states have internal predecessors, (6585), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:59:27,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4312 states to 4312 states and 6589 transitions. [2022-03-20 02:59:27,845 INFO L78 Accepts]: Start accepts. Automaton has 4312 states and 6589 transitions. Word has length 297 [2022-03-20 02:59:27,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:59:27,845 INFO L478 AbstractCegarLoop]: Abstraction has 4312 states and 6589 transitions. [2022-03-20 02:59:27,846 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.8) internal successors, (164), 5 states have internal predecessors, (164), 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) [2022-03-20 02:59:27,846 INFO L276 IsEmpty]: Start isEmpty. Operand 4312 states and 6589 transitions. [2022-03-20 02:59:27,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2022-03-20 02:59:27,852 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:59:27,852 INFO L499 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, 6, 6, 6, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:59:27,884 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-03-20 02:59:28,071 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable44 [2022-03-20 02:59:28,071 INFO L403 AbstractCegarLoop]: === Iteration 46 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:59:28,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:59:28,072 INFO L85 PathProgramCache]: Analyzing trace with hash -1762152065, now seen corresponding path program 1 times [2022-03-20 02:59:28,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:59:28,072 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382079624] [2022-03-20 02:59:28,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:59:28,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:59:28,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:59:28,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:59:28,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:59:28,265 INFO L134 CoverageAnalysis]: Checked inductivity of 715 backedges. 474 proven. 106 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2022-03-20 02:59:28,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:59:28,265 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382079624] [2022-03-20 02:59:28,265 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1382079624] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-20 02:59:28,265 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1968037362] [2022-03-20 02:59:28,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:59:28,265 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 02:59:28,265 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 02:59:28,266 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) [2022-03-20 02:59:28,268 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-03-20 02:59:29,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:59:29,075 INFO L263 TraceCheckSpWp]: Trace formula consists of 1576 conjuncts, 18 conjunts are in the unsatisfiable core [2022-03-20 02:59:29,087 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-20 02:59:29,132 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-20 02:59:29,132 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 [2022-03-20 02:59:29,178 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-03-20 02:59:29,178 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 [2022-03-20 02:59:29,368 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 [2022-03-20 02:59:29,390 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-20 02:59:29,391 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 22 [2022-03-20 02:59:29,473 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 [2022-03-20 02:59:29,592 INFO L134 CoverageAnalysis]: Checked inductivity of 715 backedges. 477 proven. 64 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2022-03-20 02:59:29,592 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-20 02:59:29,945 INFO L134 CoverageAnalysis]: Checked inductivity of 715 backedges. 482 proven. 0 refuted. 0 times theorem prover too weak. 233 trivial. 0 not checked. [2022-03-20 02:59:29,946 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1968037362] provided 1 perfect and 1 imperfect interpolant sequences [2022-03-20 02:59:29,946 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-03-20 02:59:29,946 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7, 5] total 10 [2022-03-20 02:59:29,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000684212] [2022-03-20 02:59:29,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:59:29,946 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 02:59:29,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:59:29,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 02:59:29,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-03-20 02:59:29,947 INFO L87 Difference]: Start difference. First operand 4312 states and 6589 transitions. Second operand has 4 states, 4 states have (on average 41.5) internal successors, (166), 4 states have internal predecessors, (166), 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) [2022-03-20 02:59:31,935 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 [] [2022-03-20 02:59:32,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:59:32,307 INFO L93 Difference]: Finished difference Result 9170 states and 13915 transitions. [2022-03-20 02:59:32,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 02:59:32,308 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 41.5) internal successors, (166), 4 states have internal predecessors, (166), 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 297 [2022-03-20 02:59:32,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:59:32,316 INFO L225 Difference]: With dead ends: 9170 [2022-03-20 02:59:32,316 INFO L226 Difference]: Without dead ends: 4886 [2022-03-20 02:59:32,319 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 605 GetRequests, 596 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-03-20 02:59:32,320 INFO L913 BasicCegarLoop]: 177 mSDtfsCounter, 110 mSDsluCounter, 278 mSDsCounter, 0 mSdLazyCounter, 262 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 455 SdHoareTripleChecker+Invalid, 313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-03-20 02:59:32,321 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 455 Invalid, 313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 262 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-03-20 02:59:32,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4886 states. [2022-03-20 02:59:32,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4886 to 4316. [2022-03-20 02:59:32,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4316 states, 4311 states have (on average 1.5272558571097192) internal successors, (6584), 4311 states have internal predecessors, (6584), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:59:32,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4316 states to 4316 states and 6588 transitions. [2022-03-20 02:59:32,446 INFO L78 Accepts]: Start accepts. Automaton has 4316 states and 6588 transitions. Word has length 297 [2022-03-20 02:59:32,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:59:32,446 INFO L478 AbstractCegarLoop]: Abstraction has 4316 states and 6588 transitions. [2022-03-20 02:59:32,446 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 41.5) internal successors, (166), 4 states have internal predecessors, (166), 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) [2022-03-20 02:59:32,446 INFO L276 IsEmpty]: Start isEmpty. Operand 4316 states and 6588 transitions. [2022-03-20 02:59:32,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2022-03-20 02:59:32,451 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:59:32,452 INFO L499 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, 6, 6, 6, 6, 6, 6, 6, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:59:32,474 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-03-20 02:59:32,673 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2022-03-20 02:59:32,674 INFO L403 AbstractCegarLoop]: === Iteration 47 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:59:32,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:59:32,674 INFO L85 PathProgramCache]: Analyzing trace with hash 307776793, now seen corresponding path program 1 times [2022-03-20 02:59:32,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:59:32,674 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140598414] [2022-03-20 02:59:32,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:59:32,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:59:32,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:59:32,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:59:32,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:59:32,826 INFO L134 CoverageAnalysis]: Checked inductivity of 717 backedges. 484 proven. 0 refuted. 0 times theorem prover too weak. 233 trivial. 0 not checked. [2022-03-20 02:59:32,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:59:32,826 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140598414] [2022-03-20 02:59:32,826 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1140598414] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:59:32,826 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:59:32,827 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:59:32,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486278433] [2022-03-20 02:59:32,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:59:32,827 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:59:32,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:59:32,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:59:32,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:59:32,828 INFO L87 Difference]: Start difference. First operand 4316 states and 6588 transitions. Second operand has 5 states, 5 states have (on average 33.4) internal successors, (167), 4 states have internal predecessors, (167), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:59:36,319 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:59:36,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:59:36,936 INFO L93 Difference]: Finished difference Result 9236 states and 14027 transitions. [2022-03-20 02:59:36,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:59:36,936 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.4) internal successors, (167), 4 states have internal predecessors, (167), 1 states have call successors, (3), 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 298 [2022-03-20 02:59:36,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:59:36,942 INFO L225 Difference]: With dead ends: 9236 [2022-03-20 02:59:36,943 INFO L226 Difference]: Without dead ends: 4948 [2022-03-20 02:59:36,947 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:59:36,947 INFO L913 BasicCegarLoop]: 259 mSDtfsCounter, 56 mSDsluCounter, 368 mSDsCounter, 0 mSdLazyCounter, 558 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 627 SdHoareTripleChecker+Invalid, 569 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 558 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-03-20 02:59:36,948 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [56 Valid, 627 Invalid, 569 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 558 Invalid, 1 Unknown, 0 Unchecked, 4.0s Time] [2022-03-20 02:59:36,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4948 states. [2022-03-20 02:59:37,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4948 to 4670. [2022-03-20 02:59:37,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4670 states, 4665 states have (on average 1.527759914255091) internal successors, (7127), 4665 states have internal predecessors, (7127), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:59:37,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4670 states to 4670 states and 7131 transitions. [2022-03-20 02:59:37,063 INFO L78 Accepts]: Start accepts. Automaton has 4670 states and 7131 transitions. Word has length 298 [2022-03-20 02:59:37,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:59:37,064 INFO L478 AbstractCegarLoop]: Abstraction has 4670 states and 7131 transitions. [2022-03-20 02:59:37,064 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.4) internal successors, (167), 4 states have internal predecessors, (167), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:59:37,064 INFO L276 IsEmpty]: Start isEmpty. Operand 4670 states and 7131 transitions. [2022-03-20 02:59:37,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 315 [2022-03-20 02:59:37,070 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:59:37,070 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:59:37,070 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-03-20 02:59:37,070 INFO L403 AbstractCegarLoop]: === Iteration 48 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:59:37,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:59:37,071 INFO L85 PathProgramCache]: Analyzing trace with hash 1280620080, now seen corresponding path program 1 times [2022-03-20 02:59:37,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:59:37,071 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [315085135] [2022-03-20 02:59:37,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:59:37,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:59:37,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:59:37,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:59:37,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:59:37,221 INFO L134 CoverageAnalysis]: Checked inductivity of 778 backedges. 474 proven. 0 refuted. 0 times theorem prover too weak. 304 trivial. 0 not checked. [2022-03-20 02:59:37,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:59:37,221 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [315085135] [2022-03-20 02:59:37,221 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [315085135] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:59:37,221 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:59:37,221 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:59:37,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825513501] [2022-03-20 02:59:37,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:59:37,222 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:59:37,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:59:37,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:59:37,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:59:37,222 INFO L87 Difference]: Start difference. First operand 4670 states and 7131 transitions. Second operand has 5 states, 5 states have (on average 29.4) internal successors, (147), 4 states have internal predecessors, (147), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:59:39,980 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:59:40,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:59:40,575 INFO L93 Difference]: Finished difference Result 9540 states and 14505 transitions. [2022-03-20 02:59:40,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:59:40,575 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.4) internal successors, (147), 4 states have internal predecessors, (147), 1 states have call successors, (3), 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 314 [2022-03-20 02:59:40,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:59:40,592 INFO L225 Difference]: With dead ends: 9540 [2022-03-20 02:59:40,592 INFO L226 Difference]: Without dead ends: 4898 [2022-03-20 02:59:40,596 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:59:40,597 INFO L913 BasicCegarLoop]: 252 mSDtfsCounter, 77 mSDsluCounter, 361 mSDsCounter, 0 mSdLazyCounter, 533 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 613 SdHoareTripleChecker+Invalid, 539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 533 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-03-20 02:59:40,597 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [77 Valid, 613 Invalid, 539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 533 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-03-20 02:59:40,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4898 states. [2022-03-20 02:59:40,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4898 to 4670. [2022-03-20 02:59:40,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4670 states, 4665 states have (on average 1.5258306538049304) internal successors, (7118), 4665 states have internal predecessors, (7118), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:59:40,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4670 states to 4670 states and 7122 transitions. [2022-03-20 02:59:40,710 INFO L78 Accepts]: Start accepts. Automaton has 4670 states and 7122 transitions. Word has length 314 [2022-03-20 02:59:40,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:59:40,710 INFO L478 AbstractCegarLoop]: Abstraction has 4670 states and 7122 transitions. [2022-03-20 02:59:40,711 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.4) internal successors, (147), 4 states have internal predecessors, (147), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:59:40,711 INFO L276 IsEmpty]: Start isEmpty. Operand 4670 states and 7122 transitions. [2022-03-20 02:59:40,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 320 [2022-03-20 02:59:40,717 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:59:40,717 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 2, 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] [2022-03-20 02:59:40,717 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-03-20 02:59:40,717 INFO L403 AbstractCegarLoop]: === Iteration 49 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:59:40,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:59:40,718 INFO L85 PathProgramCache]: Analyzing trace with hash -1065307725, now seen corresponding path program 1 times [2022-03-20 02:59:40,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:59:40,718 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490238847] [2022-03-20 02:59:40,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:59:40,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:59:40,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:59:40,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:59:40,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:59:40,873 INFO L134 CoverageAnalysis]: Checked inductivity of 850 backedges. 547 proven. 0 refuted. 0 times theorem prover too weak. 303 trivial. 0 not checked. [2022-03-20 02:59:40,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:59:40,873 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [490238847] [2022-03-20 02:59:40,873 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [490238847] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:59:40,873 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:59:40,873 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:59:40,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047462166] [2022-03-20 02:59:40,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:59:40,874 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:59:40,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:59:40,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:59:40,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:59:40,874 INFO L87 Difference]: Start difference. First operand 4670 states and 7122 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) [2022-03-20 02:59:42,227 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:59:43,668 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:59:44,953 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:59:45,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:59:45,490 INFO L93 Difference]: Finished difference Result 9540 states and 14487 transitions. [2022-03-20 02:59:45,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:59:45,491 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 319 [2022-03-20 02:59:45,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:59:45,499 INFO L225 Difference]: With dead ends: 9540 [2022-03-20 02:59:45,499 INFO L226 Difference]: Without dead ends: 4898 [2022-03-20 02:59:45,505 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:59:45,505 INFO L913 BasicCegarLoop]: 251 mSDtfsCounter, 67 mSDsluCounter, 360 mSDsCounter, 0 mSdLazyCounter, 532 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 611 SdHoareTripleChecker+Invalid, 538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 532 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-03-20 02:59:45,505 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [67 Valid, 611 Invalid, 538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 532 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2022-03-20 02:59:45,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4898 states. [2022-03-20 02:59:45,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4898 to 4670. [2022-03-20 02:59:45,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4670 states, 4665 states have (on average 1.5239013933547696) internal successors, (7109), 4665 states have internal predecessors, (7109), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:59:45,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4670 states to 4670 states and 7113 transitions. [2022-03-20 02:59:45,613 INFO L78 Accepts]: Start accepts. Automaton has 4670 states and 7113 transitions. Word has length 319 [2022-03-20 02:59:45,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:59:45,614 INFO L478 AbstractCegarLoop]: Abstraction has 4670 states and 7113 transitions. [2022-03-20 02:59:45,614 INFO L479 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) [2022-03-20 02:59:45,614 INFO L276 IsEmpty]: Start isEmpty. Operand 4670 states and 7113 transitions. [2022-03-20 02:59:45,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 321 [2022-03-20 02:59:45,622 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:59:45,622 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:59:45,622 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-03-20 02:59:45,625 INFO L403 AbstractCegarLoop]: === Iteration 50 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:59:45,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:59:45,625 INFO L85 PathProgramCache]: Analyzing trace with hash -1250256905, now seen corresponding path program 1 times [2022-03-20 02:59:45,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:59:45,625 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [674519659] [2022-03-20 02:59:45,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:59:45,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:59:45,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:59:45,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:59:45,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:59:45,862 INFO L134 CoverageAnalysis]: Checked inductivity of 859 backedges. 512 proven. 0 refuted. 0 times theorem prover too weak. 347 trivial. 0 not checked. [2022-03-20 02:59:45,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:59:45,862 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [674519659] [2022-03-20 02:59:45,862 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [674519659] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:59:45,863 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:59:45,863 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:59:45,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86216055] [2022-03-20 02:59:45,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:59:45,863 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:59:45,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:59:45,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:59:45,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:59:45,864 INFO L87 Difference]: Start difference. First operand 4670 states and 7113 transitions. Second operand has 5 states, 5 states have (on average 31.2) internal successors, (156), 4 states have internal predecessors, (156), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:59:48,746 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:59:50,767 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:59:51,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:59:51,901 INFO L93 Difference]: Finished difference Result 9571 states and 14579 transitions. [2022-03-20 02:59:51,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:59:51,901 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.2) internal successors, (156), 4 states have internal predecessors, (156), 1 states have call successors, (3), 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 320 [2022-03-20 02:59:51,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:59:51,908 INFO L225 Difference]: With dead ends: 9571 [2022-03-20 02:59:51,909 INFO L226 Difference]: Without dead ends: 4929 [2022-03-20 02:59:51,914 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:59:51,915 INFO L913 BasicCegarLoop]: 226 mSDtfsCounter, 37 mSDsluCounter, 335 mSDsCounter, 0 mSdLazyCounter, 449 mSolverCounterSat, 9 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 561 SdHoareTripleChecker+Invalid, 460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 449 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-03-20 02:59:51,915 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 561 Invalid, 460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 449 Invalid, 2 Unknown, 0 Unchecked, 5.9s Time] [2022-03-20 02:59:51,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4929 states. [2022-03-20 02:59:52,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4929 to 4751. [2022-03-20 02:59:52,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4751 states, 4746 states have (on average 1.5301306363253266) internal successors, (7262), 4746 states have internal predecessors, (7262), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:59:52,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4751 states to 4751 states and 7266 transitions. [2022-03-20 02:59:52,040 INFO L78 Accepts]: Start accepts. Automaton has 4751 states and 7266 transitions. Word has length 320 [2022-03-20 02:59:52,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:59:52,041 INFO L478 AbstractCegarLoop]: Abstraction has 4751 states and 7266 transitions. [2022-03-20 02:59:52,041 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.2) internal successors, (156), 4 states have internal predecessors, (156), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:59:52,041 INFO L276 IsEmpty]: Start isEmpty. Operand 4751 states and 7266 transitions. [2022-03-20 02:59:52,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 321 [2022-03-20 02:59:52,047 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:59:52,047 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 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] [2022-03-20 02:59:52,048 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-03-20 02:59:52,048 INFO L403 AbstractCegarLoop]: === Iteration 51 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:59:52,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:59:52,048 INFO L85 PathProgramCache]: Analyzing trace with hash 1375207464, now seen corresponding path program 1 times [2022-03-20 02:59:52,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:59:52,048 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728832929] [2022-03-20 02:59:52,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:59:52,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:59:52,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:59:52,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:59:52,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:59:52,222 INFO L134 CoverageAnalysis]: Checked inductivity of 856 backedges. 553 proven. 0 refuted. 0 times theorem prover too weak. 303 trivial. 0 not checked. [2022-03-20 02:59:52,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:59:52,222 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [728832929] [2022-03-20 02:59:52,222 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [728832929] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:59:52,222 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:59:52,222 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:59:52,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217467903] [2022-03-20 02:59:52,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:59:52,222 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:59:52,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:59:52,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:59:52,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:59:52,223 INFO L87 Difference]: Start difference. First operand 4751 states and 7266 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) [2022-03-20 02:59:53,713 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:59:56,094 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:59:58,116 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:59:58,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:59:58,650 INFO L93 Difference]: Finished difference Result 9666 states and 14726 transitions. [2022-03-20 02:59:58,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:59:58,651 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 320 [2022-03-20 02:59:58,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:59:58,657 INFO L225 Difference]: With dead ends: 9666 [2022-03-20 02:59:58,658 INFO L226 Difference]: Without dead ends: 4943 [2022-03-20 02:59:58,663 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:59:58,663 INFO L913 BasicCegarLoop]: 247 mSDtfsCounter, 61 mSDsluCounter, 356 mSDsCounter, 0 mSdLazyCounter, 515 mSolverCounterSat, 6 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 603 SdHoareTripleChecker+Invalid, 523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 515 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-03-20 02:59:58,663 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [61 Valid, 603 Invalid, 523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 515 Invalid, 2 Unknown, 0 Unchecked, 6.3s Time] [2022-03-20 02:59:58,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4943 states. [2022-03-20 02:59:58,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4943 to 4751. [2022-03-20 02:59:58,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4751 states, 4746 states have (on average 1.5282343025705858) internal successors, (7253), 4746 states have internal predecessors, (7253), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:59:58,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4751 states to 4751 states and 7257 transitions. [2022-03-20 02:59:58,804 INFO L78 Accepts]: Start accepts. Automaton has 4751 states and 7257 transitions. Word has length 320 [2022-03-20 02:59:58,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:59:58,804 INFO L478 AbstractCegarLoop]: Abstraction has 4751 states and 7257 transitions. [2022-03-20 02:59:58,805 INFO L479 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) [2022-03-20 02:59:58,805 INFO L276 IsEmpty]: Start isEmpty. Operand 4751 states and 7257 transitions. [2022-03-20 02:59:58,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 326 [2022-03-20 02:59:58,811 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:59:58,811 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:59:58,811 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-03-20 02:59:58,811 INFO L403 AbstractCegarLoop]: === Iteration 52 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:59:58,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:59:58,811 INFO L85 PathProgramCache]: Analyzing trace with hash 521898331, now seen corresponding path program 1 times [2022-03-20 02:59:58,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:59:58,811 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157066637] [2022-03-20 02:59:58,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:59:58,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:59:58,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:59:58,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:59:58,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:59:58,958 INFO L134 CoverageAnalysis]: Checked inductivity of 895 backedges. 542 proven. 0 refuted. 0 times theorem prover too weak. 353 trivial. 0 not checked. [2022-03-20 02:59:58,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:59:58,958 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157066637] [2022-03-20 02:59:58,958 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1157066637] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:59:58,959 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:59:58,959 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:59:58,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796728967] [2022-03-20 02:59:58,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:59:58,959 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:59:58,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:59:58,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:59:58,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:59:58,960 INFO L87 Difference]: Start difference. First operand 4751 states and 7257 transitions. Second operand has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 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) [2022-03-20 03:00:00,259 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:00:01,646 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:00:03,361 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:00:05,382 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:00:05,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:00:05,916 INFO L93 Difference]: Finished difference Result 10003 states and 15245 transitions. [2022-03-20 03:00:05,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:00:05,917 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 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 325 [2022-03-20 03:00:05,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:00:05,934 INFO L225 Difference]: With dead ends: 10003 [2022-03-20 03:00:05,934 INFO L226 Difference]: Without dead ends: 5280 [2022-03-20 03:00:05,939 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:00:05,940 INFO L913 BasicCegarLoop]: 241 mSDtfsCounter, 44 mSDsluCounter, 351 mSDsCounter, 0 mSdLazyCounter, 507 mSolverCounterSat, 14 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 592 SdHoareTripleChecker+Invalid, 522 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 507 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2022-03-20 03:00:05,940 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [44 Valid, 592 Invalid, 522 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 507 Invalid, 1 Unknown, 0 Unchecked, 6.8s Time] [2022-03-20 03:00:05,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5280 states. [2022-03-20 03:00:06,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5280 to 5039. [2022-03-20 03:00:06,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5039 states, 5034 states have (on average 1.5319825188716727) internal successors, (7712), 5034 states have internal predecessors, (7712), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:00:06,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5039 states to 5039 states and 7716 transitions. [2022-03-20 03:00:06,108 INFO L78 Accepts]: Start accepts. Automaton has 5039 states and 7716 transitions. Word has length 325 [2022-03-20 03:00:06,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:00:06,108 INFO L478 AbstractCegarLoop]: Abstraction has 5039 states and 7716 transitions. [2022-03-20 03:00:06,108 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 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) [2022-03-20 03:00:06,108 INFO L276 IsEmpty]: Start isEmpty. Operand 5039 states and 7716 transitions. [2022-03-20 03:00:06,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 327 [2022-03-20 03:00:06,115 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:00:06,116 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:00:06,116 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-03-20 03:00:06,116 INFO L403 AbstractCegarLoop]: === Iteration 53 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:00:06,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:00:06,116 INFO L85 PathProgramCache]: Analyzing trace with hash 602608684, now seen corresponding path program 1 times [2022-03-20 03:00:06,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:00:06,116 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [959039698] [2022-03-20 03:00:06,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:00:06,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:00:06,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:00:06,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:00:06,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:00:06,255 INFO L134 CoverageAnalysis]: Checked inductivity of 871 backedges. 522 proven. 0 refuted. 0 times theorem prover too weak. 349 trivial. 0 not checked. [2022-03-20 03:00:06,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:00:06,255 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [959039698] [2022-03-20 03:00:06,256 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [959039698] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:00:06,256 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:00:06,256 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:00:06,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203043194] [2022-03-20 03:00:06,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:00:06,257 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:00:06,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:00:06,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:00:06,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:00:06,257 INFO L87 Difference]: Start difference. First operand 5039 states and 7716 transitions. Second operand has 5 states, 5 states have (on average 32.4) internal successors, (162), 4 states have internal predecessors, (162), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:00:08,042 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:00:09,327 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:00:10,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:00:10,597 INFO L93 Difference]: Finished difference Result 10318 states and 15758 transitions. [2022-03-20 03:00:10,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:00:10,597 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.4) internal successors, (162), 4 states have internal predecessors, (162), 1 states have call successors, (3), 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 326 [2022-03-20 03:00:10,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:00:10,603 INFO L225 Difference]: With dead ends: 10318 [2022-03-20 03:00:10,604 INFO L226 Difference]: Without dead ends: 5307 [2022-03-20 03:00:10,609 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:00:10,610 INFO L913 BasicCegarLoop]: 231 mSDtfsCounter, 49 mSDsluCounter, 341 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 572 SdHoareTripleChecker+Invalid, 507 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-03-20 03:00:10,610 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [49 Valid, 572 Invalid, 507 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 497 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2022-03-20 03:00:10,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5307 states. [2022-03-20 03:00:10,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5307 to 5039. [2022-03-20 03:00:10,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5039 states, 5034 states have (on average 1.5301946762018275) internal successors, (7703), 5034 states have internal predecessors, (7703), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:00:10,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5039 states to 5039 states and 7707 transitions. [2022-03-20 03:00:10,711 INFO L78 Accepts]: Start accepts. Automaton has 5039 states and 7707 transitions. Word has length 326 [2022-03-20 03:00:10,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:00:10,711 INFO L478 AbstractCegarLoop]: Abstraction has 5039 states and 7707 transitions. [2022-03-20 03:00:10,711 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.4) internal successors, (162), 4 states have internal predecessors, (162), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:00:10,711 INFO L276 IsEmpty]: Start isEmpty. Operand 5039 states and 7707 transitions. [2022-03-20 03:00:10,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 327 [2022-03-20 03:00:10,717 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:00:10,717 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 4, 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] [2022-03-20 03:00:10,717 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-03-20 03:00:10,717 INFO L403 AbstractCegarLoop]: === Iteration 54 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:00:10,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:00:10,717 INFO L85 PathProgramCache]: Analyzing trace with hash 1781598325, now seen corresponding path program 1 times [2022-03-20 03:00:10,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:00:10,717 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134086404] [2022-03-20 03:00:10,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:00:10,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:00:10,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:00:11,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:00:11,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:00:11,723 INFO L134 CoverageAnalysis]: Checked inductivity of 905 backedges. 399 proven. 413 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2022-03-20 03:00:11,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:00:11,723 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2134086404] [2022-03-20 03:00:11,723 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2134086404] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-20 03:00:11,723 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1043784814] [2022-03-20 03:00:11,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:00:11,723 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 03:00:11,723 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 03:00:11,724 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) [2022-03-20 03:00:11,725 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-03-20 03:00:12,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:00:12,781 INFO L263 TraceCheckSpWp]: Trace formula consists of 1670 conjuncts, 94 conjunts are in the unsatisfiable core [2022-03-20 03:00:12,790 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-20 03:00:12,827 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-20 03:00:12,827 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 [2022-03-20 03:00:12,959 INFO L356 Elim1Store]: treesize reduction 36, result has 2.7 percent of original size [2022-03-20 03:00:12,959 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 28 treesize of output 10 [2022-03-20 03:00:13,073 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 9 treesize of output 3 [2022-03-20 03:00:13,080 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 6 treesize of output 5 [2022-03-20 03:00:13,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:00:13,147 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 44 [2022-03-20 03:00:13,166 INFO L356 Elim1Store]: treesize reduction 72, result has 40.0 percent of original size [2022-03-20 03:00:13,166 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 2 case distinctions, treesize of input 41 treesize of output 60 [2022-03-20 03:00:13,174 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-20 03:00:13,175 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 85 treesize of output 72 [2022-03-20 03:00:13,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:00:13,754 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 57 [2022-03-20 03:00:13,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:00:13,774 INFO L356 Elim1Store]: treesize reduction 127, result has 14.2 percent of original size [2022-03-20 03:00:13,774 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 3 case distinctions, treesize of input 59 treesize of output 49 [2022-03-20 03:00:13,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:00:13,779 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 51 [2022-03-20 03:00:13,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:00:13,832 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 51 [2022-03-20 03:00:13,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:00:13,836 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 51 [2022-03-20 03:00:13,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:00:13,858 INFO L356 Elim1Store]: treesize reduction 77, result has 35.8 percent of original size [2022-03-20 03:00:13,858 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 44 treesize of output 68 [2022-03-20 03:00:14,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:00:14,584 INFO L356 Elim1Store]: treesize reduction 60, result has 45.9 percent of original size [2022-03-20 03:00:14,584 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 160 treesize of output 155 [2022-03-20 03:00:14,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:00:14,620 INFO L356 Elim1Store]: treesize reduction 40, result has 49.4 percent of original size [2022-03-20 03:00:14,621 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 137 treesize of output 132 [2022-03-20 03:00:14,671 INFO L356 Elim1Store]: treesize reduction 53, result has 48.5 percent of original size [2022-03-20 03:00:14,672 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 75 [2022-03-20 03:00:22,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:00:22,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:00:22,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:00:22,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:00:22,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:00:22,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:00:22,998 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 194 treesize of output 176 [2022-03-20 03:00:23,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:00:23,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:00:23,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:00:23,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:00:23,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:00:23,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:00:23,009 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 194 treesize of output 176 [2022-03-20 03:00:23,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:00:23,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:00:23,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:00:23,038 INFO L356 Elim1Store]: treesize reduction 85, result has 18.3 percent of original size [2022-03-20 03:00:23,039 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 194 treesize of output 204 [2022-03-20 03:02:11,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:02:11,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:02:11,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:02:11,305 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 189 treesize of output 167 [2022-03-20 03:02:11,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:02:11,324 INFO L356 Elim1Store]: treesize reduction 51, result has 15.0 percent of original size [2022-03-20 03:02:11,325 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 189 treesize of output 185 [2022-03-20 03:02:11,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:02:11,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:02:11,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:02:11,333 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 189 treesize of output 167 [2022-03-20 03:02:13,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:02:13,644 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 163 treesize of output 109 [2022-03-20 03:02:13,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:02:13,648 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 117 treesize of output 69 [2022-03-20 03:02:13,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:02:13,663 INFO L356 Elim1Store]: treesize reduction 100, result has 16.0 percent of original size [2022-03-20 03:02:13,664 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 4 case distinctions, treesize of input 63 treesize of output 59 [2022-03-20 03:02:13,703 INFO L356 Elim1Store]: treesize reduction 64, result has 22.9 percent of original size [2022-03-20 03:02:13,704 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 33 treesize of output 35 [2022-03-20 03:02:13,779 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-03-20 03:02:13,779 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 29 treesize of output 11 [2022-03-20 03:02:13,804 INFO L134 CoverageAnalysis]: Checked inductivity of 905 backedges. 456 proven. 328 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2022-03-20 03:02:13,804 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-20 03:02:16,335 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-20 03:02:16,337 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-20 03:02:16,338 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 262 treesize of output 202 [2022-03-20 03:02:16,340 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-20 03:02:16,341 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-20 03:02:16,342 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 214 treesize of output 154 [2022-03-20 03:02:18,782 INFO L134 CoverageAnalysis]: Checked inductivity of 905 backedges. 581 proven. 141 refuted. 0 times theorem prover too weak. 183 trivial. 0 not checked. [2022-03-20 03:02:18,782 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1043784814] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-20 03:02:18,782 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-20 03:02:18,782 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19, 14] total 44 [2022-03-20 03:02:18,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174709461] [2022-03-20 03:02:18,783 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-20 03:02:18,784 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2022-03-20 03:02:18,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:02:18,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2022-03-20 03:02:18,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=302, Invalid=1590, Unknown=0, NotChecked=0, Total=1892 [2022-03-20 03:02:18,785 INFO L87 Difference]: Start difference. First operand 5039 states and 7707 transitions. Second operand has 44 states, 44 states have (on average 12.295454545454545) internal successors, (541), 43 states have internal predecessors, (541), 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) [2022-03-20 03:02:20,332 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:02:22,792 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:02:25,129 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:02:27,152 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:02:39,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:02:39,217 INFO L93 Difference]: Finished difference Result 25594 states and 38018 transitions. [2022-03-20 03:02:39,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2022-03-20 03:02:39,218 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 44 states have (on average 12.295454545454545) internal successors, (541), 43 states have internal predecessors, (541), 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 326 [2022-03-20 03:02:39,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:02:39,243 INFO L225 Difference]: With dead ends: 25594 [2022-03-20 03:02:39,243 INFO L226 Difference]: Without dead ends: 20583 [2022-03-20 03:02:39,250 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 815 GetRequests, 686 SyntacticMatches, 4 SemanticMatches, 125 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5481 ImplicationChecksByTransitivity, 9.9s TimeCoverageRelationStatistics Valid=1611, Invalid=14391, Unknown=0, NotChecked=0, Total=16002 [2022-03-20 03:02:39,250 INFO L913 BasicCegarLoop]: 586 mSDtfsCounter, 1712 mSDsluCounter, 6238 mSDsCounter, 0 mSdLazyCounter, 5661 mSolverCounterSat, 192 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1712 SdHoareTripleChecker+Valid, 6824 SdHoareTripleChecker+Invalid, 9693 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 192 IncrementalHoareTripleChecker+Valid, 5661 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 3838 IncrementalHoareTripleChecker+Unchecked, 13.3s IncrementalHoareTripleChecker+Time [2022-03-20 03:02:39,250 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [1712 Valid, 6824 Invalid, 9693 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [192 Valid, 5661 Invalid, 2 Unknown, 3838 Unchecked, 13.3s Time] [2022-03-20 03:02:39,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20583 states. [2022-03-20 03:02:39,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20583 to 14054. [2022-03-20 03:02:39,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14054 states, 14049 states have (on average 1.5134885045198947) internal successors, (21263), 14049 states have internal predecessors, (21263), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:02:39,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14054 states to 14054 states and 21267 transitions. [2022-03-20 03:02:39,732 INFO L78 Accepts]: Start accepts. Automaton has 14054 states and 21267 transitions. Word has length 326 [2022-03-20 03:02:39,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:02:39,732 INFO L478 AbstractCegarLoop]: Abstraction has 14054 states and 21267 transitions. [2022-03-20 03:02:39,732 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 44 states have (on average 12.295454545454545) internal successors, (541), 43 states have internal predecessors, (541), 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) [2022-03-20 03:02:39,733 INFO L276 IsEmpty]: Start isEmpty. Operand 14054 states and 21267 transitions. [2022-03-20 03:02:39,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2022-03-20 03:02:39,746 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:02:39,746 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 4, 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] [2022-03-20 03:02:39,770 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-03-20 03:02:39,970 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 03:02:39,970 INFO L403 AbstractCegarLoop]: === Iteration 55 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:02:39,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:02:39,971 INFO L85 PathProgramCache]: Analyzing trace with hash -304540576, now seen corresponding path program 1 times [2022-03-20 03:02:39,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:02:39,971 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378701276] [2022-03-20 03:02:39,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:02:39,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:02:40,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:02:40,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:02:40,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:02:40,845 INFO L134 CoverageAnalysis]: Checked inductivity of 905 backedges. 399 proven. 413 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2022-03-20 03:02:40,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:02:40,845 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378701276] [2022-03-20 03:02:40,845 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1378701276] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-20 03:02:40,845 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1043455013] [2022-03-20 03:02:40,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:02:40,846 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 03:02:40,846 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 03:02:40,847 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) [2022-03-20 03:02:40,884 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-03-20 03:02:41,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:02:41,908 INFO L263 TraceCheckSpWp]: Trace formula consists of 1697 conjuncts, 95 conjunts are in the unsatisfiable core [2022-03-20 03:02:41,916 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-20 03:02:41,954 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-20 03:02:41,954 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 [2022-03-20 03:02:42,052 INFO L356 Elim1Store]: treesize reduction 36, result has 2.7 percent of original size [2022-03-20 03:02:42,052 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 28 treesize of output 10 [2022-03-20 03:02:42,147 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 9 treesize of output 3 [2022-03-20 03:02:42,189 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-20 03:02:42,189 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 22 [2022-03-20 03:02:42,200 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-20 03:02:42,200 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 22 [2022-03-20 03:02:42,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:02:42,209 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 44 [2022-03-20 03:02:42,231 INFO L356 Elim1Store]: treesize reduction 72, result has 40.0 percent of original size [2022-03-20 03:02:42,232 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 2 case distinctions, treesize of input 41 treesize of output 60 [2022-03-20 03:02:42,239 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-20 03:02:42,240 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 85 treesize of output 72 [2022-03-20 03:02:42,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:02:42,826 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 57 [2022-03-20 03:02:42,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:02:42,831 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 57 [2022-03-20 03:02:42,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:02:42,846 INFO L356 Elim1Store]: treesize reduction 127, result has 14.2 percent of original size [2022-03-20 03:02:42,847 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 3 case distinctions, treesize of input 59 treesize of output 49 [2022-03-20 03:02:42,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:02:42,944 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 51 [2022-03-20 03:02:42,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:02:42,969 INFO L356 Elim1Store]: treesize reduction 77, result has 35.8 percent of original size [2022-03-20 03:02:42,970 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 44 treesize of output 68 [2022-03-20 03:02:42,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:02:42,974 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 67 [2022-03-20 03:02:43,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:02:43,560 INFO L356 Elim1Store]: treesize reduction 60, result has 45.9 percent of original size [2022-03-20 03:02:43,560 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 160 treesize of output 155 [2022-03-20 03:02:43,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:02:43,596 INFO L356 Elim1Store]: treesize reduction 40, result has 49.4 percent of original size [2022-03-20 03:02:43,596 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 137 treesize of output 132 [2022-03-20 03:02:43,628 INFO L356 Elim1Store]: treesize reduction 45, result has 52.6 percent of original size [2022-03-20 03:02:43,629 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 40 treesize of output 73 [2022-03-20 03:02:44,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:02:44,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:02:44,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:02:44,681 INFO L356 Elim1Store]: treesize reduction 148, result has 30.2 percent of original size [2022-03-20 03:02:44,682 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 302 treesize of output 321 [2022-03-20 03:02:44,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:02:44,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:02:44,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:02:44,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:02:44,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:02:44,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:02:44,691 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 330 treesize of output 270 [2022-03-20 03:02:44,718 INFO L356 Elim1Store]: treesize reduction 154, result has 15.4 percent of original size [2022-03-20 03:02:44,719 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 4 case distinctions, treesize of input 330 treesize of output 264 [2022-03-20 03:02:48,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:02:48,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:02:48,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:02:48,647 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 297 treesize of output 239 [2022-03-20 03:02:48,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:02:48,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:02:48,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:02:48,654 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 297 treesize of output 233 [2022-03-20 03:02:48,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:02:48,692 INFO L356 Elim1Store]: treesize reduction 77, result has 35.8 percent of original size [2022-03-20 03:02:48,693 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 297 treesize of output 291 [2022-03-20 03:02:48,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:02:48,985 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 240 treesize of output 168 [2022-03-20 03:02:48,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:02:48,989 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 168 treesize of output 96 [2022-03-20 03:02:49,008 INFO L356 Elim1Store]: treesize reduction 112, result has 14.5 percent of original size [2022-03-20 03:02:49,008 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 115 treesize of output 105 [2022-03-20 03:02:49,055 INFO L356 Elim1Store]: treesize reduction 64, result has 22.9 percent of original size [2022-03-20 03:02:49,056 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 33 treesize of output 35 [2022-03-20 03:02:49,177 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-03-20 03:02:49,178 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 29 treesize of output 11 [2022-03-20 03:02:49,204 INFO L134 CoverageAnalysis]: Checked inductivity of 905 backedges. 456 proven. 328 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2022-03-20 03:02:49,204 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-20 03:02:51,751 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-20 03:02:51,752 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-20 03:02:51,753 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 262 treesize of output 202 [2022-03-20 03:02:51,755 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-20 03:02:51,755 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-20 03:02:51,756 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 214 treesize of output 154 [2022-03-20 03:03:11,032 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-20 03:03:11,033 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-20 03:03:11,040 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 73 treesize of output 65 [2022-03-20 03:03:11,044 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-20 03:03:11,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:03:11,046 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-20 03:03:11,047 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2022-03-20 03:03:11,183 INFO L134 CoverageAnalysis]: Checked inductivity of 905 backedges. 581 proven. 141 refuted. 0 times theorem prover too weak. 183 trivial. 0 not checked. [2022-03-20 03:03:11,183 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1043455013] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-20 03:03:11,183 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-20 03:03:11,183 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 19, 15] total 44 [2022-03-20 03:03:11,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553139128] [2022-03-20 03:03:11,184 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-20 03:03:11,185 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2022-03-20 03:03:11,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:03:11,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2022-03-20 03:03:11,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=295, Invalid=1589, Unknown=8, NotChecked=0, Total=1892 [2022-03-20 03:03:11,185 INFO L87 Difference]: Start difference. First operand 14054 states and 21267 transitions. Second operand has 44 states, 44 states have (on average 12.295454545454545) internal successors, (541), 43 states have internal predecessors, (541), 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) [2022-03-20 03:03:12,317 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:03:15,114 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:03:16,425 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:03:17,812 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:03:20,437 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:03:22,456 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:03:24,479 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:03:25,760 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:03:27,777 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:03:29,806 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:03:56,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:03:56,327 INFO L93 Difference]: Finished difference Result 71460 states and 105674 transitions. [2022-03-20 03:03:56,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 196 states. [2022-03-20 03:03:56,328 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 44 states have (on average 12.295454545454545) internal successors, (541), 43 states have internal predecessors, (541), 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 327 [2022-03-20 03:03:56,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:03:56,423 INFO L225 Difference]: With dead ends: 71460 [2022-03-20 03:03:56,423 INFO L226 Difference]: Without dead ends: 57434 [2022-03-20 03:03:56,459 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 987 GetRequests, 750 SyntacticMatches, 14 SemanticMatches, 223 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19963 ImplicationChecksByTransitivity, 29.3s TimeCoverageRelationStatistics Valid=4947, Invalid=45445, Unknown=8, NotChecked=0, Total=50400 [2022-03-20 03:03:56,459 INFO L913 BasicCegarLoop]: 772 mSDtfsCounter, 3239 mSDsluCounter, 13378 mSDsCounter, 0 mSdLazyCounter, 13958 mSolverCounterSat, 504 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3239 SdHoareTripleChecker+Valid, 14150 SdHoareTripleChecker+Invalid, 19485 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 504 IncrementalHoareTripleChecker+Valid, 13958 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 5017 IncrementalHoareTripleChecker+Unchecked, 33.4s IncrementalHoareTripleChecker+Time [2022-03-20 03:03:56,459 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [3239 Valid, 14150 Invalid, 19485 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [504 Valid, 13958 Invalid, 6 Unknown, 5017 Unchecked, 33.4s Time] [2022-03-20 03:03:56,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57434 states. [2022-03-20 03:03:57,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57434 to 19945. [2022-03-20 03:03:57,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19945 states, 19940 states have (on average 1.5074222668004011) internal successors, (30058), 19940 states have internal predecessors, (30058), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:03:57,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19945 states to 19945 states and 30062 transitions. [2022-03-20 03:03:57,560 INFO L78 Accepts]: Start accepts. Automaton has 19945 states and 30062 transitions. Word has length 327 [2022-03-20 03:03:57,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:03:57,560 INFO L478 AbstractCegarLoop]: Abstraction has 19945 states and 30062 transitions. [2022-03-20 03:03:57,561 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 44 states have (on average 12.295454545454545) internal successors, (541), 43 states have internal predecessors, (541), 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) [2022-03-20 03:03:57,561 INFO L276 IsEmpty]: Start isEmpty. Operand 19945 states and 30062 transitions. [2022-03-20 03:03:57,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 330 [2022-03-20 03:03:57,580 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:03:57,581 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:03:57,609 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-03-20 03:03:57,795 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 03:03:57,795 INFO L403 AbstractCegarLoop]: === Iteration 56 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:03:57,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:03:57,796 INFO L85 PathProgramCache]: Analyzing trace with hash -1306314981, now seen corresponding path program 1 times [2022-03-20 03:03:57,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:03:57,796 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596746008] [2022-03-20 03:03:57,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:03:57,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:03:57,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:03:57,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:03:57,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:03:57,994 INFO L134 CoverageAnalysis]: Checked inductivity of 913 backedges. 529 proven. 0 refuted. 0 times theorem prover too weak. 384 trivial. 0 not checked. [2022-03-20 03:03:57,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:03:57,994 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596746008] [2022-03-20 03:03:57,994 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1596746008] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:03:57,994 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:03:57,994 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:03:57,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939963876] [2022-03-20 03:03:57,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:03:57,995 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:03:57,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:03:57,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:03:57,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:03:57,996 INFO L87 Difference]: Start difference. First operand 19945 states and 30062 transitions. Second operand has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:04:00,007 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:04:01,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:04:01,299 INFO L93 Difference]: Finished difference Result 39932 states and 60010 transitions. [2022-03-20 03:04:01,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:04:01,299 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 1 states have call successors, (3), 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 329 [2022-03-20 03:04:01,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:04:01,328 INFO L225 Difference]: With dead ends: 39932 [2022-03-20 03:04:01,328 INFO L226 Difference]: Without dead ends: 20015 [2022-03-20 03:04:01,347 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:04:01,348 INFO L913 BasicCegarLoop]: 231 mSDtfsCounter, 24 mSDsluCounter, 340 mSDsCounter, 0 mSdLazyCounter, 418 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 571 SdHoareTripleChecker+Invalid, 429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 418 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 03:04:01,349 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 571 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 418 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 03:04:01,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20015 states. [2022-03-20 03:04:02,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20015 to 19727. [2022-03-20 03:04:02,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19727 states, 19722 states have (on average 1.5010140959334752) internal successors, (29603), 19722 states have internal predecessors, (29603), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:04:02,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19727 states to 19727 states and 29607 transitions. [2022-03-20 03:04:02,238 INFO L78 Accepts]: Start accepts. Automaton has 19727 states and 29607 transitions. Word has length 329 [2022-03-20 03:04:02,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:04:02,239 INFO L478 AbstractCegarLoop]: Abstraction has 19727 states and 29607 transitions. [2022-03-20 03:04:02,239 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:04:02,239 INFO L276 IsEmpty]: Start isEmpty. Operand 19727 states and 29607 transitions. [2022-03-20 03:04:02,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 331 [2022-03-20 03:04:02,260 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:04:02,260 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:04:02,260 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-03-20 03:04:02,260 INFO L403 AbstractCegarLoop]: === Iteration 57 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:04:02,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:04:02,261 INFO L85 PathProgramCache]: Analyzing trace with hash -735295738, now seen corresponding path program 1 times [2022-03-20 03:04:02,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:04:02,261 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181678693] [2022-03-20 03:04:02,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:04:02,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:04:02,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:04:02,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:04:02,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:04:02,395 INFO L134 CoverageAnalysis]: Checked inductivity of 913 backedges. 557 proven. 0 refuted. 0 times theorem prover too weak. 356 trivial. 0 not checked. [2022-03-20 03:04:02,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:04:02,395 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181678693] [2022-03-20 03:04:02,395 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [181678693] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:04:02,395 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:04:02,395 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:04:02,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623849013] [2022-03-20 03:04:02,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:04:02,396 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:04:02,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:04:02,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:04:02,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:04:02,396 INFO L87 Difference]: Start difference. First operand 19727 states and 29607 transitions. Second operand has 5 states, 5 states have (on average 33.2) internal successors, (166), 4 states have internal predecessors, (166), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:04:03,919 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:04:06,171 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:04:08,198 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:04:09,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:04:09,788 INFO L93 Difference]: Finished difference Result 40215 states and 60114 transitions. [2022-03-20 03:04:09,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:04:09,788 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.2) internal successors, (166), 4 states have internal predecessors, (166), 1 states have call successors, (3), 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 330 [2022-03-20 03:04:09,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:04:09,817 INFO L225 Difference]: With dead ends: 40215 [2022-03-20 03:04:09,817 INFO L226 Difference]: Without dead ends: 20516 [2022-03-20 03:04:09,836 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:04:09,837 INFO L913 BasicCegarLoop]: 248 mSDtfsCounter, 49 mSDsluCounter, 358 mSDsCounter, 0 mSdLazyCounter, 522 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 606 SdHoareTripleChecker+Invalid, 533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 522 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-03-20 03:04:09,837 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [49 Valid, 606 Invalid, 533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 522 Invalid, 1 Unknown, 0 Unchecked, 6.3s Time] [2022-03-20 03:04:09,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20516 states. [2022-03-20 03:04:10,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20516 to 19692. [2022-03-20 03:04:10,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19692 states, 19687 states have (on average 1.4988571138314624) internal successors, (29508), 19687 states have internal predecessors, (29508), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:04:10,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19692 states to 19692 states and 29512 transitions. [2022-03-20 03:04:10,654 INFO L78 Accepts]: Start accepts. Automaton has 19692 states and 29512 transitions. Word has length 330 [2022-03-20 03:04:10,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:04:10,654 INFO L478 AbstractCegarLoop]: Abstraction has 19692 states and 29512 transitions. [2022-03-20 03:04:10,656 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.2) internal successors, (166), 4 states have internal predecessors, (166), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:04:10,656 INFO L276 IsEmpty]: Start isEmpty. Operand 19692 states and 29512 transitions. [2022-03-20 03:04:10,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 331 [2022-03-20 03:04:10,691 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:04:10,691 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 4, 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] [2022-03-20 03:04:10,691 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-03-20 03:04:10,691 INFO L403 AbstractCegarLoop]: === Iteration 58 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:04:10,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:04:10,703 INFO L85 PathProgramCache]: Analyzing trace with hash 1957943367, now seen corresponding path program 1 times [2022-03-20 03:04:10,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:04:10,704 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944931558] [2022-03-20 03:04:10,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:04:10,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:04:11,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:04:11,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:04:11,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:04:11,290 INFO L134 CoverageAnalysis]: Checked inductivity of 905 backedges. 667 proven. 26 refuted. 0 times theorem prover too weak. 212 trivial. 0 not checked. [2022-03-20 03:04:11,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:04:11,291 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944931558] [2022-03-20 03:04:11,291 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1944931558] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-20 03:04:11,291 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [814252959] [2022-03-20 03:04:11,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:04:11,291 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 03:04:11,291 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 03:04:11,312 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) [2022-03-20 03:04:11,350 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-03-20 03:04:12,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:04:12,449 INFO L263 TraceCheckSpWp]: Trace formula consists of 1703 conjuncts, 32 conjunts are in the unsatisfiable core [2022-03-20 03:04:12,454 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-20 03:04:12,608 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 6 treesize of output 5 [2022-03-20 03:04:12,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:04:12,690 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 35 [2022-03-20 03:04:12,709 INFO L356 Elim1Store]: treesize reduction 49, result has 46.7 percent of original size [2022-03-20 03:04:12,709 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 36 treesize of output 57 [2022-03-20 03:04:12,716 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-20 03:04:12,717 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 57 treesize of output 50 [2022-03-20 03:04:12,736 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 68 treesize of output 50 [2022-03-20 03:04:12,737 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 50 treesize of output 32 [2022-03-20 03:04:12,772 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 29 treesize of output 13 [2022-03-20 03:04:12,826 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 [2022-03-20 03:04:12,966 INFO L134 CoverageAnalysis]: Checked inductivity of 905 backedges. 667 proven. 26 refuted. 0 times theorem prover too weak. 212 trivial. 0 not checked. [2022-03-20 03:04:12,966 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-20 03:04:13,563 INFO L134 CoverageAnalysis]: Checked inductivity of 905 backedges. 667 proven. 26 refuted. 0 times theorem prover too weak. 212 trivial. 0 not checked. [2022-03-20 03:04:13,563 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [814252959] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-20 03:04:13,563 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-20 03:04:13,564 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 16 [2022-03-20 03:04:13,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658522010] [2022-03-20 03:04:13,564 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-20 03:04:13,564 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-20 03:04:13,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:04:13,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-20 03:04:13,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=193, Unknown=0, NotChecked=0, Total=240 [2022-03-20 03:04:13,565 INFO L87 Difference]: Start difference. First operand 19692 states and 29512 transitions. Second operand has 16 states, 16 states have (on average 16.8125) internal successors, (269), 15 states have internal predecessors, (269), 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) [2022-03-20 03:04:15,575 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:04:19,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:04:19,454 INFO L93 Difference]: Finished difference Result 59606 states and 87972 transitions. [2022-03-20 03:04:19,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-03-20 03:04:19,455 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 16.8125) internal successors, (269), 15 states have internal predecessors, (269), 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 330 [2022-03-20 03:04:19,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:04:19,510 INFO L225 Difference]: With dead ends: 59606 [2022-03-20 03:04:19,510 INFO L226 Difference]: Without dead ends: 39942 [2022-03-20 03:04:19,526 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 686 GetRequests, 657 SyntacticMatches, 2 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 152 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=190, Invalid=622, Unknown=0, NotChecked=0, Total=812 [2022-03-20 03:04:19,527 INFO L913 BasicCegarLoop]: 217 mSDtfsCounter, 1458 mSDsluCounter, 1493 mSDsCounter, 0 mSdLazyCounter, 2025 mSolverCounterSat, 412 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1458 SdHoareTripleChecker+Valid, 1710 SdHoareTripleChecker+Invalid, 2504 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 412 IncrementalHoareTripleChecker+Valid, 2025 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 66 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-03-20 03:04:19,527 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [1458 Valid, 1710 Invalid, 2504 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [412 Valid, 2025 Invalid, 1 Unknown, 66 Unchecked, 3.8s Time] [2022-03-20 03:04:19,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39942 states. [2022-03-20 03:04:20,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39942 to 30802. [2022-03-20 03:04:20,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30802 states, 30797 states have (on average 1.5025489495730104) internal successors, (46274), 30797 states have internal predecessors, (46274), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:04:20,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30802 states to 30802 states and 46278 transitions. [2022-03-20 03:04:20,742 INFO L78 Accepts]: Start accepts. Automaton has 30802 states and 46278 transitions. Word has length 330 [2022-03-20 03:04:20,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:04:20,742 INFO L478 AbstractCegarLoop]: Abstraction has 30802 states and 46278 transitions. [2022-03-20 03:04:20,743 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 16.8125) internal successors, (269), 15 states have internal predecessors, (269), 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) [2022-03-20 03:04:20,743 INFO L276 IsEmpty]: Start isEmpty. Operand 30802 states and 46278 transitions. [2022-03-20 03:04:20,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 332 [2022-03-20 03:04:20,885 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:04:20,885 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:04:20,913 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-03-20 03:04:21,086 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable57 [2022-03-20 03:04:21,086 INFO L403 AbstractCegarLoop]: === Iteration 59 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:04:21,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:04:21,087 INFO L85 PathProgramCache]: Analyzing trace with hash -1863594356, now seen corresponding path program 1 times [2022-03-20 03:04:21,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:04:21,087 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350338671] [2022-03-20 03:04:21,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:04:21,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:04:21,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:04:21,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:04:21,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:04:21,232 INFO L134 CoverageAnalysis]: Checked inductivity of 931 backedges. 570 proven. 0 refuted. 0 times theorem prover too weak. 361 trivial. 0 not checked. [2022-03-20 03:04:21,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:04:21,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1350338671] [2022-03-20 03:04:21,232 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1350338671] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:04:21,232 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:04:21,233 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:04:21,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870412343] [2022-03-20 03:04:21,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:04:21,233 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:04:21,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:04:21,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:04:21,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:04:21,233 INFO L87 Difference]: Start difference. First operand 30802 states and 46278 transitions. Second operand has 5 states, 5 states have (on average 33.2) internal successors, (166), 4 states have internal predecessors, (166), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:04:23,984 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:04:25,191 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:04:26,725 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:04:28,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:04:28,542 INFO L93 Difference]: Finished difference Result 62576 states and 93727 transitions. [2022-03-20 03:04:28,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:04:28,542 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.2) internal successors, (166), 4 states have internal predecessors, (166), 1 states have call successors, (3), 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 331 [2022-03-20 03:04:28,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:04:28,591 INFO L225 Difference]: With dead ends: 62576 [2022-03-20 03:04:28,591 INFO L226 Difference]: Without dead ends: 31802 [2022-03-20 03:04:28,617 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:04:28,618 INFO L913 BasicCegarLoop]: 252 mSDtfsCounter, 51 mSDsluCounter, 362 mSDsCounter, 0 mSdLazyCounter, 536 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 614 SdHoareTripleChecker+Invalid, 547 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 536 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-03-20 03:04:28,618 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [51 Valid, 614 Invalid, 547 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 536 Invalid, 1 Unknown, 0 Unchecked, 6.0s Time] [2022-03-20 03:04:28,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31802 states. [2022-03-20 03:04:29,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31802 to 30780. [2022-03-20 03:04:29,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30780 states, 30775 states have (on average 1.5017384240454914) internal successors, (46216), 30775 states have internal predecessors, (46216), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:04:29,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30780 states to 30780 states and 46220 transitions. [2022-03-20 03:04:29,949 INFO L78 Accepts]: Start accepts. Automaton has 30780 states and 46220 transitions. Word has length 331 [2022-03-20 03:04:29,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:04:29,949 INFO L478 AbstractCegarLoop]: Abstraction has 30780 states and 46220 transitions. [2022-03-20 03:04:29,949 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.2) internal successors, (166), 4 states have internal predecessors, (166), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:04:29,949 INFO L276 IsEmpty]: Start isEmpty. Operand 30780 states and 46220 transitions. [2022-03-20 03:04:29,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 332 [2022-03-20 03:04:29,985 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:04:29,985 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:04:29,985 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-03-20 03:04:29,985 INFO L403 AbstractCegarLoop]: === Iteration 60 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:04:29,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:04:29,985 INFO L85 PathProgramCache]: Analyzing trace with hash 72805040, now seen corresponding path program 1 times [2022-03-20 03:04:29,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:04:29,986 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784689490] [2022-03-20 03:04:29,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:04:29,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:04:30,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:04:30,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:04:30,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:04:30,117 INFO L134 CoverageAnalysis]: Checked inductivity of 906 backedges. 553 proven. 0 refuted. 0 times theorem prover too weak. 353 trivial. 0 not checked. [2022-03-20 03:04:30,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:04:30,117 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784689490] [2022-03-20 03:04:30,117 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [784689490] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:04:30,117 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:04:30,117 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 03:04:30,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562209277] [2022-03-20 03:04:30,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:04:30,118 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 03:04:30,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:04:30,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 03:04:30,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 03:04:30,118 INFO L87 Difference]: Start difference. First operand 30780 states and 46220 transitions. Second operand has 4 states, 4 states have (on average 43.25) internal successors, (173), 3 states have internal predecessors, (173), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:04:31,503 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:04:32,923 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:04:34,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:04:34,709 INFO L93 Difference]: Finished difference Result 62061 states and 93115 transitions. [2022-03-20 03:04:34,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 03:04:34,709 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 43.25) internal successors, (173), 3 states have internal predecessors, (173), 1 states have call successors, (3), 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 331 [2022-03-20 03:04:34,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:04:34,758 INFO L225 Difference]: With dead ends: 62061 [2022-03-20 03:04:34,758 INFO L226 Difference]: Without dead ends: 31309 [2022-03-20 03:04:34,784 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 03:04:34,784 INFO L913 BasicCegarLoop]: 208 mSDtfsCounter, 150 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 221 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-03-20 03:04:34,784 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [150 Valid, 222 Invalid, 225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 221 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-03-20 03:04:34,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31309 states. [2022-03-20 03:04:36,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31309 to 31131. [2022-03-20 03:04:36,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31131 states, 31126 states have (on average 1.48367923922123) internal successors, (46181), 31126 states have internal predecessors, (46181), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:04:36,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31131 states to 31131 states and 46185 transitions. [2022-03-20 03:04:36,162 INFO L78 Accepts]: Start accepts. Automaton has 31131 states and 46185 transitions. Word has length 331 [2022-03-20 03:04:36,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:04:36,162 INFO L478 AbstractCegarLoop]: Abstraction has 31131 states and 46185 transitions. [2022-03-20 03:04:36,162 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 43.25) internal successors, (173), 3 states have internal predecessors, (173), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:04:36,162 INFO L276 IsEmpty]: Start isEmpty. Operand 31131 states and 46185 transitions. [2022-03-20 03:04:36,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 332 [2022-03-20 03:04:36,199 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:04:36,199 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 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] [2022-03-20 03:04:36,199 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-03-20 03:04:36,199 INFO L403 AbstractCegarLoop]: === Iteration 61 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:04:36,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:04:36,200 INFO L85 PathProgramCache]: Analyzing trace with hash -1921682989, now seen corresponding path program 1 times [2022-03-20 03:04:36,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:04:36,200 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659349358] [2022-03-20 03:04:36,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:04:36,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:04:36,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:04:36,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:04:36,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:04:36,944 INFO L134 CoverageAnalysis]: Checked inductivity of 909 backedges. 454 proven. 362 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2022-03-20 03:04:36,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:04:36,944 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659349358] [2022-03-20 03:04:36,945 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1659349358] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-20 03:04:36,945 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1577545705] [2022-03-20 03:04:36,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:04:36,945 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 03:04:36,945 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 03:04:36,946 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) [2022-03-20 03:04:36,947 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-03-20 03:04:38,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:04:38,121 INFO L263 TraceCheckSpWp]: Trace formula consists of 1706 conjuncts, 32 conjunts are in the unsatisfiable core [2022-03-20 03:04:38,126 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-20 03:04:38,263 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 6 treesize of output 5 [2022-03-20 03:04:38,371 INFO L356 Elim1Store]: treesize reduction 49, result has 46.7 percent of original size [2022-03-20 03:04:38,372 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 36 treesize of output 57 [2022-03-20 03:04:38,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:04:38,376 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 50 [2022-03-20 03:04:38,384 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-20 03:04:38,384 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 57 treesize of output 50 [2022-03-20 03:04:38,425 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 66 treesize of output 48 [2022-03-20 03:04:38,426 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 48 treesize of output 30 [2022-03-20 03:04:38,488 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 29 treesize of output 13 [2022-03-20 03:04:38,543 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 [2022-03-20 03:04:38,664 INFO L134 CoverageAnalysis]: Checked inductivity of 909 backedges. 671 proven. 26 refuted. 0 times theorem prover too weak. 212 trivial. 0 not checked. [2022-03-20 03:04:38,664 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-20 03:04:39,304 INFO L134 CoverageAnalysis]: Checked inductivity of 909 backedges. 671 proven. 26 refuted. 0 times theorem prover too weak. 212 trivial. 0 not checked. [2022-03-20 03:04:39,304 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1577545705] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-20 03:04:39,304 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-20 03:04:39,304 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 8, 8] total 28 [2022-03-20 03:04:39,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227423159] [2022-03-20 03:04:39,304 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-20 03:04:39,305 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-03-20 03:04:39,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:04:39,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-03-20 03:04:39,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=668, Unknown=0, NotChecked=0, Total=756 [2022-03-20 03:04:39,306 INFO L87 Difference]: Start difference. First operand 31131 states and 46185 transitions. Second operand has 28 states, 28 states have (on average 16.678571428571427) internal successors, (467), 27 states have internal predecessors, (467), 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) [2022-03-20 03:04:41,320 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:05:03,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:05:03,744 INFO L93 Difference]: Finished difference Result 176280 states and 255719 transitions. [2022-03-20 03:05:03,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 176 states. [2022-03-20 03:05:03,744 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 16.678571428571427) internal successors, (467), 27 states have internal predecessors, (467), 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 331 [2022-03-20 03:05:03,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:05:03,984 INFO L225 Difference]: With dead ends: 176280 [2022-03-20 03:05:03,985 INFO L226 Difference]: Without dead ends: 144852 [2022-03-20 03:05:04,022 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 886 GetRequests, 694 SyntacticMatches, 3 SemanticMatches, 189 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13669 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=3905, Invalid=32385, Unknown=0, NotChecked=0, Total=36290 [2022-03-20 03:05:04,022 INFO L913 BasicCegarLoop]: 527 mSDtfsCounter, 5653 mSDsluCounter, 8792 mSDsCounter, 0 mSdLazyCounter, 10493 mSolverCounterSat, 1732 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5653 SdHoareTripleChecker+Valid, 9319 SdHoareTripleChecker+Invalid, 13952 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1732 IncrementalHoareTripleChecker+Valid, 10493 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 1726 IncrementalHoareTripleChecker+Unchecked, 12.3s IncrementalHoareTripleChecker+Time [2022-03-20 03:05:04,023 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [5653 Valid, 9319 Invalid, 13952 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1732 Valid, 10493 Invalid, 1 Unknown, 1726 Unchecked, 12.3s Time] [2022-03-20 03:05:04,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144852 states. [2022-03-20 03:05:08,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144852 to 91367. [2022-03-20 03:05:08,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91367 states, 91362 states have (on average 1.4902694774632779) internal successors, (136154), 91362 states have internal predecessors, (136154), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:05:08,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91367 states to 91367 states and 136158 transitions. [2022-03-20 03:05:08,564 INFO L78 Accepts]: Start accepts. Automaton has 91367 states and 136158 transitions. Word has length 331 [2022-03-20 03:05:08,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:05:08,564 INFO L478 AbstractCegarLoop]: Abstraction has 91367 states and 136158 transitions. [2022-03-20 03:05:08,564 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 16.678571428571427) internal successors, (467), 27 states have internal predecessors, (467), 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) [2022-03-20 03:05:08,564 INFO L276 IsEmpty]: Start isEmpty. Operand 91367 states and 136158 transitions. [2022-03-20 03:05:08,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 337 [2022-03-20 03:05:08,761 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:05:08,761 INFO L499 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 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] [2022-03-20 03:05:08,807 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-03-20 03:05:08,983 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 03:05:08,984 INFO L403 AbstractCegarLoop]: === Iteration 62 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:05:08,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:05:08,984 INFO L85 PathProgramCache]: Analyzing trace with hash -1688285867, now seen corresponding path program 1 times [2022-03-20 03:05:08,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:05:08,984 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1912086672] [2022-03-20 03:05:08,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:05:08,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:05:09,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:05:09,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:05:09,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:05:09,304 INFO L134 CoverageAnalysis]: Checked inductivity of 976 backedges. 611 proven. 55 refuted. 0 times theorem prover too weak. 310 trivial. 0 not checked. [2022-03-20 03:05:09,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:05:09,304 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1912086672] [2022-03-20 03:05:09,304 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1912086672] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-20 03:05:09,304 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [427921799] [2022-03-20 03:05:09,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:05:09,304 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 03:05:09,305 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 03:05:09,309 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-20 03:05:09,323 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-03-20 03:05:10,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:05:10,844 INFO L263 TraceCheckSpWp]: Trace formula consists of 1740 conjuncts, 18 conjunts are in the unsatisfiable core [2022-03-20 03:05:10,852 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-20 03:05:10,899 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-20 03:05:10,900 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 [2022-03-20 03:05:10,955 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-03-20 03:05:10,956 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 [2022-03-20 03:05:11,124 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 [2022-03-20 03:05:11,143 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-20 03:05:11,143 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 22 [2022-03-20 03:05:11,177 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 [2022-03-20 03:05:11,359 INFO L134 CoverageAnalysis]: Checked inductivity of 976 backedges. 619 proven. 62 refuted. 0 times theorem prover too weak. 295 trivial. 0 not checked. [2022-03-20 03:05:11,359 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-20 03:05:11,728 INFO L134 CoverageAnalysis]: Checked inductivity of 976 backedges. 622 proven. 0 refuted. 0 times theorem prover too weak. 354 trivial. 0 not checked. [2022-03-20 03:05:11,728 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [427921799] provided 1 perfect and 1 imperfect interpolant sequences [2022-03-20 03:05:11,728 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-03-20 03:05:11,728 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7, 5] total 10 [2022-03-20 03:05:11,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488886652] [2022-03-20 03:05:11,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:05:11,729 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 03:05:11,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:05:11,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 03:05:11,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-03-20 03:05:11,729 INFO L87 Difference]: Start difference. First operand 91367 states and 136158 transitions. Second operand has 4 states, 4 states have (on average 38.5) internal successors, (154), 4 states have internal predecessors, (154), 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) [2022-03-20 03:05:16,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:05:16,850 INFO L93 Difference]: Finished difference Result 186196 states and 276735 transitions. [2022-03-20 03:05:16,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 03:05:16,852 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.5) internal successors, (154), 4 states have internal predecessors, (154), 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 336 [2022-03-20 03:05:16,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:05:17,010 INFO L225 Difference]: With dead ends: 186196 [2022-03-20 03:05:17,011 INFO L226 Difference]: Without dead ends: 94857 [2022-03-20 03:05:17,072 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 683 GetRequests, 674 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-03-20 03:05:17,073 INFO L913 BasicCegarLoop]: 136 mSDtfsCounter, 124 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 256 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-20 03:05:17,073 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [124 Valid, 378 Invalid, 310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 256 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-20 03:05:17,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94857 states. [2022-03-20 03:05:21,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94857 to 91507. [2022-03-20 03:05:21,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91507 states, 91502 states have (on average 1.4644379357828243) internal successors, (133999), 91502 states have internal predecessors, (133999), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:05:21,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91507 states to 91507 states and 134003 transitions. [2022-03-20 03:05:21,392 INFO L78 Accepts]: Start accepts. Automaton has 91507 states and 134003 transitions. Word has length 336 [2022-03-20 03:05:21,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:05:21,392 INFO L478 AbstractCegarLoop]: Abstraction has 91507 states and 134003 transitions. [2022-03-20 03:05:21,392 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.5) internal successors, (154), 4 states have internal predecessors, (154), 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) [2022-03-20 03:05:21,392 INFO L276 IsEmpty]: Start isEmpty. Operand 91507 states and 134003 transitions. [2022-03-20 03:05:21,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 337 [2022-03-20 03:05:21,484 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:05:21,485 INFO L499 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:05:21,511 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-03-20 03:05:21,695 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 03:05:21,695 INFO L403 AbstractCegarLoop]: === Iteration 63 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:05:21,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:05:21,696 INFO L85 PathProgramCache]: Analyzing trace with hash 2029094158, now seen corresponding path program 1 times [2022-03-20 03:05:21,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:05:21,696 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326479254] [2022-03-20 03:05:21,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:05:21,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:05:21,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:05:21,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:05:21,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:05:21,835 INFO L134 CoverageAnalysis]: Checked inductivity of 928 backedges. 600 proven. 0 refuted. 0 times theorem prover too weak. 328 trivial. 0 not checked. [2022-03-20 03:05:21,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:05:21,836 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326479254] [2022-03-20 03:05:21,836 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [326479254] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:05:21,836 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:05:21,836 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:05:21,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188892436] [2022-03-20 03:05:21,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:05:21,836 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:05:21,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:05:21,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:05:21,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:05:21,837 INFO L87 Difference]: Start difference. First operand 91507 states and 134003 transitions. Second operand has 5 states, 5 states have (on average 32.4) internal successors, (162), 4 states have internal predecessors, (162), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:05:24,488 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:05:26,289 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:05:28,165 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:05:33,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:05:33,138 INFO L93 Difference]: Finished difference Result 186824 states and 272473 transitions. [2022-03-20 03:05:33,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:05:33,139 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.4) internal successors, (162), 4 states have internal predecessors, (162), 1 states have call successors, (3), 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 336 [2022-03-20 03:05:33,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:05:33,284 INFO L225 Difference]: With dead ends: 186824 [2022-03-20 03:05:33,284 INFO L226 Difference]: Without dead ends: 95345 [2022-03-20 03:05:33,453 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:05:33,454 INFO L913 BasicCegarLoop]: 236 mSDtfsCounter, 57 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 504 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 581 SdHoareTripleChecker+Invalid, 511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 504 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2022-03-20 03:05:33,454 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [57 Valid, 581 Invalid, 511 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 504 Invalid, 1 Unknown, 0 Unchecked, 6.7s Time] [2022-03-20 03:05:33,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95345 states. [2022-03-20 03:05:37,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95345 to 91507. [2022-03-20 03:05:37,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91507 states, 91502 states have (on average 1.4599790168520907) internal successors, (133591), 91502 states have internal predecessors, (133591), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:05:37,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91507 states to 91507 states and 133595 transitions. [2022-03-20 03:05:37,417 INFO L78 Accepts]: Start accepts. Automaton has 91507 states and 133595 transitions. Word has length 336 [2022-03-20 03:05:37,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:05:37,417 INFO L478 AbstractCegarLoop]: Abstraction has 91507 states and 133595 transitions. [2022-03-20 03:05:37,418 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.4) internal successors, (162), 4 states have internal predecessors, (162), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:05:37,418 INFO L276 IsEmpty]: Start isEmpty. Operand 91507 states and 133595 transitions. [2022-03-20 03:05:37,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 338 [2022-03-20 03:05:37,507 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:05:37,507 INFO L499 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 2, 2, 2, 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] [2022-03-20 03:05:37,507 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2022-03-20 03:05:37,508 INFO L403 AbstractCegarLoop]: === Iteration 64 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:05:37,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:05:37,508 INFO L85 PathProgramCache]: Analyzing trace with hash 1585906523, now seen corresponding path program 1 times [2022-03-20 03:05:37,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:05:37,508 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502754414] [2022-03-20 03:05:37,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:05:37,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:05:37,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:05:37,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:05:37,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:05:37,649 INFO L134 CoverageAnalysis]: Checked inductivity of 984 backedges. 630 proven. 0 refuted. 0 times theorem prover too weak. 354 trivial. 0 not checked. [2022-03-20 03:05:37,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:05:37,649 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502754414] [2022-03-20 03:05:37,649 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1502754414] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:05:37,649 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:05:37,649 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:05:37,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921829837] [2022-03-20 03:05:37,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:05:37,649 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:05:37,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:05:37,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:05:37,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:05:37,650 INFO L87 Difference]: Start difference. First operand 91507 states and 133595 transitions. Second operand has 5 states, 5 states have (on average 31.0) internal successors, (155), 4 states have internal predecessors, (155), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:05:38,928 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:05:40,025 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:05:41,991 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.97s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:05:47,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:05:47,762 INFO L93 Difference]: Finished difference Result 186824 states and 271657 transitions. [2022-03-20 03:05:47,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:05:47,764 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.0) internal successors, (155), 4 states have internal predecessors, (155), 1 states have call successors, (3), 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 337 [2022-03-20 03:05:47,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:05:47,921 INFO L225 Difference]: With dead ends: 186824 [2022-03-20 03:05:47,921 INFO L226 Difference]: Without dead ends: 95345 [2022-03-20 03:05:47,987 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:05:47,993 INFO L913 BasicCegarLoop]: 235 mSDtfsCounter, 60 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 504 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 579 SdHoareTripleChecker+Invalid, 510 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 504 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-03-20 03:05:47,993 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [60 Valid, 579 Invalid, 510 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 504 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2022-03-20 03:05:48,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95345 states. [2022-03-20 03:05:52,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95345 to 91507. [2022-03-20 03:05:52,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91507 states, 91502 states have (on average 1.4556075277043126) internal successors, (133191), 91502 states have internal predecessors, (133191), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:05:52,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91507 states to 91507 states and 133195 transitions. [2022-03-20 03:05:52,300 INFO L78 Accepts]: Start accepts. Automaton has 91507 states and 133195 transitions. Word has length 337 [2022-03-20 03:05:52,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:05:52,300 INFO L478 AbstractCegarLoop]: Abstraction has 91507 states and 133195 transitions. [2022-03-20 03:05:52,300 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.0) internal successors, (155), 4 states have internal predecessors, (155), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:05:52,300 INFO L276 IsEmpty]: Start isEmpty. Operand 91507 states and 133195 transitions. [2022-03-20 03:05:52,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 338 [2022-03-20 03:05:52,394 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:05:52,395 INFO L499 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:05:52,395 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2022-03-20 03:05:52,395 INFO L403 AbstractCegarLoop]: === Iteration 65 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:05:52,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:05:52,395 INFO L85 PathProgramCache]: Analyzing trace with hash -1016262695, now seen corresponding path program 1 times [2022-03-20 03:05:52,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:05:52,395 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897177184] [2022-03-20 03:05:52,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:05:52,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:05:52,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:05:52,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:05:52,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:05:52,569 INFO L134 CoverageAnalysis]: Checked inductivity of 934 backedges. 606 proven. 0 refuted. 0 times theorem prover too weak. 328 trivial. 0 not checked. [2022-03-20 03:05:52,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:05:52,569 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897177184] [2022-03-20 03:05:52,569 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1897177184] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:05:52,569 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:05:52,569 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:05:52,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058203978] [2022-03-20 03:05:52,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:05:52,570 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:05:52,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:05:52,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:05:52,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:05:52,570 INFO L87 Difference]: Start difference. First operand 91507 states and 133195 transitions. Second operand has 5 states, 5 states have (on average 32.6) internal successors, (163), 4 states have internal predecessors, (163), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:05:55,474 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 [] [2022-03-20 03:06:00,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:06:00,566 INFO L93 Difference]: Finished difference Result 185394 states and 269063 transitions. [2022-03-20 03:06:00,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:06:00,566 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.6) internal successors, (163), 4 states have internal predecessors, (163), 1 states have call successors, (3), 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 337 [2022-03-20 03:06:00,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:06:00,709 INFO L225 Difference]: With dead ends: 185394 [2022-03-20 03:06:00,710 INFO L226 Difference]: Without dead ends: 93915 [2022-03-20 03:06:00,764 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:06:00,765 INFO L913 BasicCegarLoop]: 231 mSDtfsCounter, 50 mSDsluCounter, 340 mSDsCounter, 0 mSdLazyCounter, 493 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 571 SdHoareTripleChecker+Invalid, 499 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 493 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-03-20 03:06:00,765 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [50 Valid, 571 Invalid, 499 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 493 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-03-20 03:06:00,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93915 states. [2022-03-20 03:06:04,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93915 to 90987. [2022-03-20 03:06:04,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90987 states, 90982 states have (on average 1.451858609395265) internal successors, (132093), 90982 states have internal predecessors, (132093), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:06:04,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90987 states to 90987 states and 132097 transitions. [2022-03-20 03:06:04,648 INFO L78 Accepts]: Start accepts. Automaton has 90987 states and 132097 transitions. Word has length 337 [2022-03-20 03:06:04,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:06:04,648 INFO L478 AbstractCegarLoop]: Abstraction has 90987 states and 132097 transitions. [2022-03-20 03:06:04,648 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.6) internal successors, (163), 4 states have internal predecessors, (163), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:06:04,649 INFO L276 IsEmpty]: Start isEmpty. Operand 90987 states and 132097 transitions. [2022-03-20 03:06:04,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 339 [2022-03-20 03:06:04,880 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:06:04,880 INFO L499 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 2, 2, 2, 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] [2022-03-20 03:06:04,880 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2022-03-20 03:06:04,880 INFO L403 AbstractCegarLoop]: === Iteration 66 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:06:04,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:06:04,880 INFO L85 PathProgramCache]: Analyzing trace with hash -153779408, now seen corresponding path program 1 times [2022-03-20 03:06:04,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:06:04,881 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1693345764] [2022-03-20 03:06:04,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:06:04,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:06:04,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:06:05,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:06:05,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:06:05,074 INFO L134 CoverageAnalysis]: Checked inductivity of 992 backedges. 638 proven. 0 refuted. 0 times theorem prover too weak. 354 trivial. 0 not checked. [2022-03-20 03:06:05,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:06:05,074 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1693345764] [2022-03-20 03:06:05,074 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1693345764] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:06:05,074 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:06:05,074 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:06:05,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762417291] [2022-03-20 03:06:05,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:06:05,075 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:06:05,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:06:05,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:06:05,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:06:05,075 INFO L87 Difference]: Start difference. First operand 90987 states and 132097 transitions. Second operand has 5 states, 5 states have (on average 31.2) internal successors, (156), 4 states have internal predecessors, (156), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:06:07,752 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:06:09,771 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:06:14,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:06:14,360 INFO L93 Difference]: Finished difference Result 184320 states and 266937 transitions. [2022-03-20 03:06:14,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:06:14,361 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.2) internal successors, (156), 4 states have internal predecessors, (156), 1 states have call successors, (3), 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 338 [2022-03-20 03:06:14,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:06:14,506 INFO L225 Difference]: With dead ends: 184320 [2022-03-20 03:06:14,507 INFO L226 Difference]: Without dead ends: 93361 [2022-03-20 03:06:14,572 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:06:14,573 INFO L913 BasicCegarLoop]: 228 mSDtfsCounter, 51 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 565 SdHoareTripleChecker+Invalid, 488 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-03-20 03:06:14,573 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [51 Valid, 565 Invalid, 488 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 482 Invalid, 1 Unknown, 0 Unchecked, 5.3s Time] [2022-03-20 03:06:14,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93361 states. [2022-03-20 03:06:18,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93361 to 90597. [2022-03-20 03:06:18,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90597 states, 90592 states have (on average 1.4487261568350407) internal successors, (131243), 90592 states have internal predecessors, (131243), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:06:18,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90597 states to 90597 states and 131247 transitions. [2022-03-20 03:06:18,592 INFO L78 Accepts]: Start accepts. Automaton has 90597 states and 131247 transitions. Word has length 338 [2022-03-20 03:06:18,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:06:18,592 INFO L478 AbstractCegarLoop]: Abstraction has 90597 states and 131247 transitions. [2022-03-20 03:06:18,592 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.2) internal successors, (156), 4 states have internal predecessors, (156), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:06:18,592 INFO L276 IsEmpty]: Start isEmpty. Operand 90597 states and 131247 transitions. [2022-03-20 03:06:18,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 339 [2022-03-20 03:06:18,683 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:06:18,683 INFO L499 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 5, 5, 5, 5, 5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:06:18,683 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2022-03-20 03:06:18,683 INFO L403 AbstractCegarLoop]: === Iteration 67 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:06:18,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:06:18,683 INFO L85 PathProgramCache]: Analyzing trace with hash -571561340, now seen corresponding path program 1 times [2022-03-20 03:06:18,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:06:18,684 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906629797] [2022-03-20 03:06:18,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:06:18,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:06:18,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:06:18,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:06:18,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:06:18,827 INFO L134 CoverageAnalysis]: Checked inductivity of 1062 backedges. 513 proven. 0 refuted. 0 times theorem prover too weak. 549 trivial. 0 not checked. [2022-03-20 03:06:18,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:06:18,827 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906629797] [2022-03-20 03:06:18,827 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [906629797] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:06:18,827 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:06:18,827 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 03:06:18,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331422927] [2022-03-20 03:06:18,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:06:18,828 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 03:06:18,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:06:18,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 03:06:18,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 03:06:18,828 INFO L87 Difference]: Start difference. First operand 90597 states and 131247 transitions. Second operand has 4 states, 4 states have (on average 31.5) internal successors, (126), 3 states have internal predecessors, (126), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:06:21,302 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:06:26,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:06:26,122 INFO L93 Difference]: Finished difference Result 110988 states and 160910 transitions. [2022-03-20 03:06:26,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 03:06:26,123 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.5) internal successors, (126), 3 states have internal predecessors, (126), 1 states have call successors, (3), 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 338 [2022-03-20 03:06:26,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:06:26,296 INFO L225 Difference]: With dead ends: 110988 [2022-03-20 03:06:26,296 INFO L226 Difference]: Without dead ends: 110983 [2022-03-20 03:06:26,320 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 03:06:26,320 INFO L913 BasicCegarLoop]: 193 mSDtfsCounter, 148 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 13 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-03-20 03:06:26,320 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 378 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 235 Invalid, 1 Unknown, 0 Unchecked, 3.3s Time] [2022-03-20 03:06:26,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110983 states. [2022-03-20 03:06:30,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110983 to 110983. [2022-03-20 03:06:31,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110983 states, 110978 states have (on average 1.449566580763755) internal successors, (160870), 110978 states have internal predecessors, (160870), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:06:31,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110983 states to 110983 states and 160874 transitions. [2022-03-20 03:06:31,262 INFO L78 Accepts]: Start accepts. Automaton has 110983 states and 160874 transitions. Word has length 338 [2022-03-20 03:06:31,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:06:31,263 INFO L478 AbstractCegarLoop]: Abstraction has 110983 states and 160874 transitions. [2022-03-20 03:06:31,263 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.5) internal successors, (126), 3 states have internal predecessors, (126), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:06:31,263 INFO L276 IsEmpty]: Start isEmpty. Operand 110983 states and 160874 transitions. [2022-03-20 03:06:31,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 342 [2022-03-20 03:06:31,546 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:06:31,547 INFO L499 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:06:31,547 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2022-03-20 03:06:31,547 INFO L403 AbstractCegarLoop]: === Iteration 68 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:06:31,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:06:31,547 INFO L85 PathProgramCache]: Analyzing trace with hash 250293874, now seen corresponding path program 1 times [2022-03-20 03:06:31,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:06:31,548 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480657657] [2022-03-20 03:06:31,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:06:31,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:06:31,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:06:31,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:06:31,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:06:31,737 INFO L134 CoverageAnalysis]: Checked inductivity of 964 backedges. 636 proven. 0 refuted. 0 times theorem prover too weak. 328 trivial. 0 not checked. [2022-03-20 03:06:31,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:06:31,737 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1480657657] [2022-03-20 03:06:31,737 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1480657657] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:06:31,737 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:06:31,738 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:06:31,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053810452] [2022-03-20 03:06:31,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:06:31,738 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:06:31,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:06:31,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:06:31,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:06:31,738 INFO L87 Difference]: Start difference. First operand 110983 states and 160874 transitions. Second operand has 5 states, 5 states have (on average 33.4) internal successors, (167), 4 states have internal predecessors, (167), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:06:33,247 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:06:40,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:06:40,395 INFO L93 Difference]: Finished difference Result 224842 states and 325132 transitions. [2022-03-20 03:06:40,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:06:40,395 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.4) internal successors, (167), 4 states have internal predecessors, (167), 1 states have call successors, (3), 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 341 [2022-03-20 03:06:40,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:06:40,599 INFO L225 Difference]: With dead ends: 224842 [2022-03-20 03:06:40,599 INFO L226 Difference]: Without dead ends: 113887 [2022-03-20 03:06:40,678 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:06:40,678 INFO L913 BasicCegarLoop]: 227 mSDtfsCounter, 41 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 563 SdHoareTripleChecker+Invalid, 487 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-03-20 03:06:40,678 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [41 Valid, 563 Invalid, 487 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 482 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-03-20 03:06:40,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113887 states. [2022-03-20 03:06:45,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113887 to 110983. [2022-03-20 03:06:45,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110983 states, 110978 states have (on average 1.4452774423759664) internal successors, (160394), 110978 states have internal predecessors, (160394), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:06:45,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110983 states to 110983 states and 160398 transitions. [2022-03-20 03:06:45,678 INFO L78 Accepts]: Start accepts. Automaton has 110983 states and 160398 transitions. Word has length 341 [2022-03-20 03:06:45,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:06:45,678 INFO L478 AbstractCegarLoop]: Abstraction has 110983 states and 160398 transitions. [2022-03-20 03:06:45,678 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.4) internal successors, (167), 4 states have internal predecessors, (167), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:06:45,678 INFO L276 IsEmpty]: Start isEmpty. Operand 110983 states and 160398 transitions. [2022-03-20 03:06:45,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 343 [2022-03-20 03:06:45,764 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:06:45,764 INFO L499 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:06:45,764 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2022-03-20 03:06:45,764 INFO L403 AbstractCegarLoop]: === Iteration 69 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:06:45,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:06:45,764 INFO L85 PathProgramCache]: Analyzing trace with hash -1439062873, now seen corresponding path program 1 times [2022-03-20 03:06:45,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:06:45,765 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383583937] [2022-03-20 03:06:45,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:06:45,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:06:46,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:06:46,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:06:46,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:06:46,151 INFO L134 CoverageAnalysis]: Checked inductivity of 970 backedges. 642 proven. 0 refuted. 0 times theorem prover too weak. 328 trivial. 0 not checked. [2022-03-20 03:06:46,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:06:46,151 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [383583937] [2022-03-20 03:06:46,151 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [383583937] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:06:46,151 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:06:46,151 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:06:46,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593736745] [2022-03-20 03:06:46,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:06:46,151 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:06:46,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:06:46,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:06:46,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:06:46,152 INFO L87 Difference]: Start difference. First operand 110983 states and 160398 transitions. Second operand has 5 states, 5 states have (on average 33.6) internal successors, (168), 4 states have internal predecessors, (168), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:06:47,317 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:06:48,650 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:06:54,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:06:54,917 INFO L93 Difference]: Finished difference Result 216777 states and 312223 transitions. [2022-03-20 03:06:54,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:06:54,918 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 4 states have internal predecessors, (168), 1 states have call successors, (3), 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 342 [2022-03-20 03:06:54,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:06:55,108 INFO L225 Difference]: With dead ends: 216777 [2022-03-20 03:06:55,108 INFO L226 Difference]: Without dead ends: 105822 [2022-03-20 03:06:55,282 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:06:55,282 INFO L913 BasicCegarLoop]: 225 mSDtfsCounter, 38 mSDsluCounter, 334 mSDsCounter, 0 mSdLazyCounter, 476 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 559 SdHoareTripleChecker+Invalid, 481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 476 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-03-20 03:06:55,282 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 559 Invalid, 481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 476 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-03-20 03:06:55,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105822 states. [2022-03-20 03:06:59,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105822 to 101039. [2022-03-20 03:06:59,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101039 states, 101034 states have (on average 1.44290040976305) internal successors, (145782), 101034 states have internal predecessors, (145782), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:06:59,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101039 states to 101039 states and 145786 transitions. [2022-03-20 03:06:59,727 INFO L78 Accepts]: Start accepts. Automaton has 101039 states and 145786 transitions. Word has length 342 [2022-03-20 03:06:59,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:06:59,727 INFO L478 AbstractCegarLoop]: Abstraction has 101039 states and 145786 transitions. [2022-03-20 03:06:59,728 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 4 states have internal predecessors, (168), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:06:59,728 INFO L276 IsEmpty]: Start isEmpty. Operand 101039 states and 145786 transitions. [2022-03-20 03:06:59,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 343 [2022-03-20 03:06:59,805 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:06:59,805 INFO L499 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:06:59,805 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2022-03-20 03:06:59,805 INFO L403 AbstractCegarLoop]: === Iteration 70 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:06:59,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:06:59,806 INFO L85 PathProgramCache]: Analyzing trace with hash 34928451, now seen corresponding path program 1 times [2022-03-20 03:06:59,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:06:59,806 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533423205] [2022-03-20 03:06:59,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:06:59,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:06:59,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:06:59,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:06:59,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:06:59,952 INFO L134 CoverageAnalysis]: Checked inductivity of 940 backedges. 612 proven. 0 refuted. 0 times theorem prover too weak. 328 trivial. 0 not checked. [2022-03-20 03:06:59,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:06:59,952 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [533423205] [2022-03-20 03:06:59,952 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [533423205] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:06:59,952 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:06:59,952 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:06:59,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632774318] [2022-03-20 03:06:59,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:06:59,953 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:06:59,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:06:59,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:06:59,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:06:59,953 INFO L87 Difference]: Start difference. First operand 101039 states and 145786 transitions. Second operand has 5 states, 5 states have (on average 33.6) internal successors, (168), 4 states have internal predecessors, (168), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:07:01,561 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:07:03,145 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:07:04,228 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 [] [2022-03-20 03:07:09,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:07:09,730 INFO L93 Difference]: Finished difference Result 204637 states and 294609 transitions. [2022-03-20 03:07:09,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:07:09,731 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 4 states have internal predecessors, (168), 1 states have call successors, (3), 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 342 [2022-03-20 03:07:09,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:07:09,948 INFO L225 Difference]: With dead ends: 204637 [2022-03-20 03:07:09,948 INFO L226 Difference]: Without dead ends: 103626 [2022-03-20 03:07:10,021 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:07:10,021 INFO L913 BasicCegarLoop]: 224 mSDtfsCounter, 42 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 475 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 557 SdHoareTripleChecker+Invalid, 480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 475 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-03-20 03:07:10,021 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [42 Valid, 557 Invalid, 480 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 475 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2022-03-20 03:07:10,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103626 states. [2022-03-20 03:07:14,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103626 to 101039. [2022-03-20 03:07:14,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101039 states, 101034 states have (on average 1.439198685590989) internal successors, (145408), 101034 states have internal predecessors, (145408), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:07:14,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101039 states to 101039 states and 145412 transitions. [2022-03-20 03:07:14,771 INFO L78 Accepts]: Start accepts. Automaton has 101039 states and 145412 transitions. Word has length 342 [2022-03-20 03:07:14,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:07:14,771 INFO L478 AbstractCegarLoop]: Abstraction has 101039 states and 145412 transitions. [2022-03-20 03:07:14,771 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 4 states have internal predecessors, (168), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:07:14,771 INFO L276 IsEmpty]: Start isEmpty. Operand 101039 states and 145412 transitions. [2022-03-20 03:07:14,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 344 [2022-03-20 03:07:14,854 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:07:14,854 INFO L499 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:07:14,854 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2022-03-20 03:07:14,854 INFO L403 AbstractCegarLoop]: === Iteration 71 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:07:14,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:07:14,856 INFO L85 PathProgramCache]: Analyzing trace with hash -2101252498, now seen corresponding path program 1 times [2022-03-20 03:07:14,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:07:14,856 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794622792] [2022-03-20 03:07:14,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:07:14,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:07:15,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:07:15,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:07:15,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:07:15,200 INFO L134 CoverageAnalysis]: Checked inductivity of 946 backedges. 618 proven. 0 refuted. 0 times theorem prover too weak. 328 trivial. 0 not checked. [2022-03-20 03:07:15,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:07:15,201 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794622792] [2022-03-20 03:07:15,201 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1794622792] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:07:15,201 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:07:15,201 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:07:15,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662998755] [2022-03-20 03:07:15,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:07:15,201 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:07:15,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:07:15,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:07:15,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:07:15,202 INFO L87 Difference]: Start difference. First operand 101039 states and 145412 transitions. Second operand has 5 states, 5 states have (on average 33.8) internal successors, (169), 4 states have internal predecessors, (169), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:07:17,675 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 []