/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/automizer/acceleratedInterpolation/acceleratedInterpolationJordan_32.epf -i ../../../trunk/examples/svcomp/openssl/s3_srvr.blast.08.i.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-6c470ae [2022-02-15 03:14:12,846 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-15 03:14:12,856 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-15 03:14:12,915 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-15 03:14:12,916 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-15 03:14:12,920 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-15 03:14:12,923 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-15 03:14:12,926 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-15 03:14:12,928 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-15 03:14:12,935 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-15 03:14:12,936 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-15 03:14:12,937 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-15 03:14:12,938 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-15 03:14:12,939 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-15 03:14:12,941 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-15 03:14:12,943 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-15 03:14:12,944 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-15 03:14:12,945 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-15 03:14:12,947 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-15 03:14:12,952 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-15 03:14:12,954 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-15 03:14:12,955 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-15 03:14:12,957 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-15 03:14:12,958 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-15 03:14:12,968 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-02-15 03:14:12,977 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-15 03:14:12,978 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-15 03:14:12,979 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-15 03:14:12,980 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationJordan_32.epf [2022-02-15 03:14:12,995 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-15 03:14:12,996 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-15 03:14:12,998 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-15 03:14:12,998 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-15 03:14:12,998 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-15 03:14:12,998 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-15 03:14:12,998 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-15 03:14:12,998 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-15 03:14:12,998 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-15 03:14:12,999 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-15 03:14:12,999 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-15 03:14:13,000 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-15 03:14:13,000 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-15 03:14:13,000 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-15 03:14:13,000 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-15 03:14:13,000 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-15 03:14:13,000 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-15 03:14:13,000 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-15 03:14:13,001 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-15 03:14:13,001 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-15 03:14:13,001 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2022-02-15 03:14:13,001 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-15 03:14:13,001 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=JORDAN [2022-02-15 03:14:13,001 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-02-15 03:14:13,287 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-15 03:14:13,316 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-15 03:14:13,318 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-15 03:14:13,319 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-15 03:14:13,320 INFO L275 PluginConnector]: CDTParser initialized [2022-02-15 03:14:13,321 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl/s3_srvr.blast.08.i.cil-1.c [2022-02-15 03:14:13,396 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8796d170c/6ad077ac91374b3d8be891c96205b473/FLAG2640f84cd [2022-02-15 03:14:14,040 INFO L306 CDTParser]: Found 1 translation units. [2022-02-15 03:14:14,040 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.08.i.cil-1.c [2022-02-15 03:14:14,072 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8796d170c/6ad077ac91374b3d8be891c96205b473/FLAG2640f84cd [2022-02-15 03:14:14,247 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8796d170c/6ad077ac91374b3d8be891c96205b473 [2022-02-15 03:14:14,250 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-15 03:14:14,252 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-02-15 03:14:14,257 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-15 03:14:14,258 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-15 03:14:14,261 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-15 03:14:14,262 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 03:14:14" (1/1) ... [2022-02-15 03:14:14,263 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@536d929d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 03:14:14, skipping insertion in model container [2022-02-15 03:14:14,263 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 03:14:14" (1/1) ... [2022-02-15 03:14:14,270 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-15 03:14:14,341 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-15 03:14:14,764 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.08.i.cil-1.c[74696,74709] [2022-02-15 03:14:14,774 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-15 03:14:14,795 INFO L203 MainTranslator]: Completed pre-run [2022-02-15 03:14:14,894 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.08.i.cil-1.c[74696,74709] [2022-02-15 03:14:14,898 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-15 03:14:14,915 INFO L208 MainTranslator]: Completed translation [2022-02-15 03:14:14,916 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 03:14:14 WrapperNode [2022-02-15 03:14:14,916 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-15 03:14:14,917 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-15 03:14:14,917 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-15 03:14:14,918 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-15 03:14:14,928 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 03:14:14" (1/1) ... [2022-02-15 03:14:14,928 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 03:14:14" (1/1) ... [2022-02-15 03:14:14,949 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 03:14:14" (1/1) ... [2022-02-15 03:14:14,951 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 03:14:14" (1/1) ... [2022-02-15 03:14:15,012 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 03:14:14" (1/1) ... [2022-02-15 03:14:15,027 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 03:14:14" (1/1) ... [2022-02-15 03:14:15,031 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 03:14:14" (1/1) ... [2022-02-15 03:14:15,038 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-15 03:14:15,039 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-15 03:14:15,039 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-15 03:14:15,039 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-15 03:14:15,040 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 03:14:14" (1/1) ... [2022-02-15 03:14:15,047 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-15 03:14:15,075 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-15 03:14:15,088 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-02-15 03:14:15,089 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-02-15 03:14:15,131 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-02-15 03:14:15,131 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-15 03:14:15,131 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-02-15 03:14:15,131 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_server_method [2022-02-15 03:14:15,131 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_server_method [2022-02-15 03:14:15,131 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-02-15 03:14:15,131 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-02-15 03:14:15,132 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-02-15 03:14:15,132 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-02-15 03:14:15,132 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-02-15 03:14:15,132 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-02-15 03:14:15,132 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-02-15 03:14:15,132 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-02-15 03:14:15,132 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-15 03:14:15,132 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-02-15 03:14:15,133 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-02-15 03:14:15,135 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-02-15 03:14:15,135 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-02-15 03:14:15,135 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-02-15 03:14:15,135 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-02-15 03:14:15,136 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_server_method [2022-02-15 03:14:15,136 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-02-15 03:14:15,136 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-02-15 03:14:15,136 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_server_method [2022-02-15 03:14:15,136 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-02-15 03:14:15,136 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-02-15 03:14:15,136 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-02-15 03:14:15,136 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-02-15 03:14:15,137 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-15 03:14:15,137 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-02-15 03:14:15,137 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-15 03:14:15,137 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-02-15 03:14:15,137 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-02-15 03:14:15,137 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-02-15 03:14:15,137 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-15 03:14:15,137 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-15 03:14:15,138 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-02-15 03:14:15,138 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-02-15 03:14:15,138 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-02-15 03:14:15,138 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-02-15 03:14:15,138 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-15 03:14:15,355 INFO L234 CfgBuilder]: Building ICFG [2022-02-15 03:14:15,358 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-15 03:14:16,452 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-02-15 03:14:16,985 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2022-02-15 03:14:16,985 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2022-02-15 03:14:16,996 INFO L275 CfgBuilder]: Performing block encoding [2022-02-15 03:14:17,007 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-15 03:14:17,008 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-02-15 03:14:17,010 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 03:14:17 BoogieIcfgContainer [2022-02-15 03:14:17,010 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-15 03:14:17,012 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-15 03:14:17,012 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-15 03:14:17,015 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-15 03:14:17,015 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.02 03:14:14" (1/3) ... [2022-02-15 03:14:17,016 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c9e121c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 03:14:17, skipping insertion in model container [2022-02-15 03:14:17,016 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 03:14:14" (2/3) ... [2022-02-15 03:14:17,017 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c9e121c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 03:14:17, skipping insertion in model container [2022-02-15 03:14:17,017 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 03:14:17" (3/3) ... [2022-02-15 03:14:17,018 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr.blast.08.i.cil-1.c [2022-02-15 03:14:17,023 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-02-15 03:14:17,023 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-15 03:14:17,068 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-15 03:14:17,074 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=AcceleratedInterpolation, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=JORDAN [2022-02-15 03:14:17,074 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-02-15 03:14:17,097 INFO L276 IsEmpty]: Start isEmpty. Operand has 159 states, 151 states have (on average 1.7086092715231789) internal successors, (258), 152 states have internal predecessors, (258), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-02-15 03:14:17,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-02-15 03:14:17,115 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:14:17,116 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:14:17,117 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:14:17,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:14:17,122 INFO L85 PathProgramCache]: Analyzing trace with hash -1930935805, now seen corresponding path program 1 times [2022-02-15 03:14:17,130 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:14:17,130 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [388746239] [2022-02-15 03:14:17,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:14:17,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:14:17,210 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:14:17,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:14:17,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:14:17,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:14:17,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:14:17,751 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:14:17,752 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [388746239] [2022-02-15 03:14:17,753 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [388746239] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:14:17,754 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:14:17,754 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 03:14:17,755 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037392518] [2022-02-15 03:14:17,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:14:17,760 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 03:14:17,761 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:14:17,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 03:14:17,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 03:14:17,788 INFO L87 Difference]: Start difference. First operand has 159 states, 151 states have (on average 1.7086092715231789) internal successors, (258), 152 states have internal predecessors, (258), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:14:20,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:14:20,671 INFO L93 Difference]: Finished difference Result 336 states and 564 transitions. [2022-02-15 03:14:20,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 03:14:20,673 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 [2022-02-15 03:14:20,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:14:20,681 INFO L225 Difference]: With dead ends: 336 [2022-02-15 03:14:20,682 INFO L226 Difference]: Without dead ends: 171 [2022-02-15 03:14:20,685 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 03:14:20,688 INFO L933 BasicCegarLoop]: 231 mSDtfsCounter, 34 mSDsluCounter, 382 mSDsCounter, 0 mSdLazyCounter, 417 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 613 SdHoareTripleChecker+Invalid, 428 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 417 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-02-15 03:14:20,689 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 613 Invalid, 428 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 417 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-02-15 03:14:20,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2022-02-15 03:14:20,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 154. [2022-02-15 03:14:20,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 149 states have (on average 1.5570469798657718) internal successors, (232), 149 states have internal predecessors, (232), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:14:20,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 236 transitions. [2022-02-15 03:14:20,740 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 236 transitions. Word has length 50 [2022-02-15 03:14:20,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:14:20,741 INFO L470 AbstractCegarLoop]: Abstraction has 154 states and 236 transitions. [2022-02-15 03:14:20,742 INFO L471 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) [2022-02-15 03:14:20,742 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 236 transitions. [2022-02-15 03:14:20,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-02-15 03:14:20,744 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:14:20,745 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:14:20,745 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-15 03:14:20,746 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:14:20,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:14:20,746 INFO L85 PathProgramCache]: Analyzing trace with hash -213156207, now seen corresponding path program 1 times [2022-02-15 03:14:20,747 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:14:20,747 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1798974205] [2022-02-15 03:14:20,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:14:20,783 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-15 03:14:20,784 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-02-15 03:14:20,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:14:20,800 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:14:20,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:14:21,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:14:21,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:14:21,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:14:21,166 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:14:21,166 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1798974205] [2022-02-15 03:14:21,166 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1798974205] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:14:21,167 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:14:21,167 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 03:14:21,168 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597633272] [2022-02-15 03:14:21,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:14:21,169 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 03:14:21,169 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:14:21,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 03:14:21,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 03:14:21,174 INFO L87 Difference]: Start difference. First operand 154 states and 236 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:14:24,735 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:14:26,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:14:26,051 INFO L93 Difference]: Finished difference Result 299 states and 455 transitions. [2022-02-15 03:14:26,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 03:14:26,052 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 63 [2022-02-15 03:14:26,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:14:26,054 INFO L225 Difference]: With dead ends: 299 [2022-02-15 03:14:26,055 INFO L226 Difference]: Without dead ends: 171 [2022-02-15 03:14:26,056 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 03:14:26,057 INFO L933 BasicCegarLoop]: 189 mSDtfsCounter, 24 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 365 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 489 SdHoareTripleChecker+Invalid, 376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 365 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-02-15 03:14:26,058 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 489 Invalid, 376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 365 Invalid, 1 Unknown, 0 Unchecked, 4.8s Time] [2022-02-15 03:14:26,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2022-02-15 03:14:26,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 154. [2022-02-15 03:14:26,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 149 states have (on average 1.5503355704697988) internal successors, (231), 149 states have internal predecessors, (231), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:14:26,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 235 transitions. [2022-02-15 03:14:26,092 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 235 transitions. Word has length 63 [2022-02-15 03:14:26,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:14:26,093 INFO L470 AbstractCegarLoop]: Abstraction has 154 states and 235 transitions. [2022-02-15 03:14:26,093 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:14:26,094 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 235 transitions. [2022-02-15 03:14:26,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-02-15 03:14:26,105 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:14:26,106 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:14:26,106 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-15 03:14:26,106 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:14:26,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:14:26,107 INFO L85 PathProgramCache]: Analyzing trace with hash 369840513, now seen corresponding path program 1 times [2022-02-15 03:14:26,107 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:14:26,108 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [723956245] [2022-02-15 03:14:26,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:14:26,126 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-15 03:14:26,127 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-02-15 03:14:26,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:14:26,136 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:14:26,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:14:26,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:14:26,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:14:26,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:14:26,370 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:14:26,371 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [723956245] [2022-02-15 03:14:26,371 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [723956245] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:14:26,371 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:14:26,371 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 03:14:26,372 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223135844] [2022-02-15 03:14:26,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:14:26,372 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 03:14:26,373 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:14:26,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 03:14:26,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 03:14:26,374 INFO L87 Difference]: Start difference. First operand 154 states and 235 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:14:27,452 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:14:30,181 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:14:31,293 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:14:31,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:14:31,944 INFO L93 Difference]: Finished difference Result 399 states and 616 transitions. [2022-02-15 03:14:31,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 03:14:31,946 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 64 [2022-02-15 03:14:31,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:14:31,951 INFO L225 Difference]: With dead ends: 399 [2022-02-15 03:14:31,952 INFO L226 Difference]: Without dead ends: 271 [2022-02-15 03:14:31,956 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 03:14:31,962 INFO L933 BasicCegarLoop]: 120 mSDtfsCounter, 150 mSDsluCounter, 230 mSDsCounter, 0 mSdLazyCounter, 476 mSolverCounterSat, 63 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 350 SdHoareTripleChecker+Invalid, 540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 476 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-02-15 03:14:31,963 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [150 Valid, 350 Invalid, 540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 476 Invalid, 1 Unknown, 0 Unchecked, 5.5s Time] [2022-02-15 03:14:31,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2022-02-15 03:14:31,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 165. [2022-02-15 03:14:31,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 160 states have (on average 1.5375) internal successors, (246), 160 states have internal predecessors, (246), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:14:31,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 250 transitions. [2022-02-15 03:14:31,995 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 250 transitions. Word has length 64 [2022-02-15 03:14:31,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:14:31,995 INFO L470 AbstractCegarLoop]: Abstraction has 165 states and 250 transitions. [2022-02-15 03:14:31,996 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:14:31,996 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 250 transitions. [2022-02-15 03:14:31,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-02-15 03:14:31,997 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:14:31,998 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:14:31,998 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-02-15 03:14:31,998 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:14:31,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:14:31,999 INFO L85 PathProgramCache]: Analyzing trace with hash -2038223339, now seen corresponding path program 1 times [2022-02-15 03:14:31,999 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:14:31,999 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1286501299] [2022-02-15 03:14:31,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:14:32,009 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-15 03:14:32,009 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-02-15 03:14:32,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:14:32,016 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:14:32,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:14:32,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:14:32,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:14:32,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:14:32,205 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:14:32,206 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1286501299] [2022-02-15 03:14:32,206 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1286501299] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:14:32,206 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:14:32,206 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 03:14:32,206 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774874362] [2022-02-15 03:14:32,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:14:32,207 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 03:14:32,207 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:14:32,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 03:14:32,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 03:14:32,208 INFO L87 Difference]: Start difference. First operand 165 states and 250 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:14:33,545 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:14:35,562 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:14:36,879 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:14:38,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:14:38,465 INFO L93 Difference]: Finished difference Result 410 states and 630 transitions. [2022-02-15 03:14:38,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 03:14:38,466 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 64 [2022-02-15 03:14:38,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:14:38,468 INFO L225 Difference]: With dead ends: 410 [2022-02-15 03:14:38,468 INFO L226 Difference]: Without dead ends: 271 [2022-02-15 03:14:38,469 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 03:14:38,470 INFO L933 BasicCegarLoop]: 120 mSDtfsCounter, 148 mSDsluCounter, 230 mSDsCounter, 0 mSdLazyCounter, 476 mSolverCounterSat, 63 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 350 SdHoareTripleChecker+Invalid, 540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 476 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-02-15 03:14:38,470 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 350 Invalid, 540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 476 Invalid, 1 Unknown, 0 Unchecked, 6.2s Time] [2022-02-15 03:14:38,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2022-02-15 03:14:38,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 166. [2022-02-15 03:14:38,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 161 states have (on average 1.5279503105590062) internal successors, (246), 161 states have internal predecessors, (246), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:14:38,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 250 transitions. [2022-02-15 03:14:38,483 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 250 transitions. Word has length 64 [2022-02-15 03:14:38,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:14:38,483 INFO L470 AbstractCegarLoop]: Abstraction has 166 states and 250 transitions. [2022-02-15 03:14:38,484 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:14:38,484 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 250 transitions. [2022-02-15 03:14:38,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-02-15 03:14:38,485 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:14:38,485 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:14:38,485 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-02-15 03:14:38,485 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:14:38,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:14:38,486 INFO L85 PathProgramCache]: Analyzing trace with hash -923216500, now seen corresponding path program 1 times [2022-02-15 03:14:38,486 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:14:38,486 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [355262468] [2022-02-15 03:14:38,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:14:38,492 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-15 03:14:38,493 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-02-15 03:14:38,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:14:38,497 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:14:38,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:14:38,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:14:38,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:14:38,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:14:38,693 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:14:38,694 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [355262468] [2022-02-15 03:14:38,694 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [355262468] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:14:38,694 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:14:38,694 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 03:14:38,694 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497045793] [2022-02-15 03:14:38,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:14:38,696 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 03:14:38,696 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:14:38,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 03:14:38,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 03:14:38,697 INFO L87 Difference]: Start difference. First operand 166 states and 250 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:14:41,580 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:14:42,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:14:42,220 INFO L93 Difference]: Finished difference Result 411 states and 629 transitions. [2022-02-15 03:14:42,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 03:14:42,221 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 64 [2022-02-15 03:14:42,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:14:42,223 INFO L225 Difference]: With dead ends: 411 [2022-02-15 03:14:42,223 INFO L226 Difference]: Without dead ends: 271 [2022-02-15 03:14:42,224 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 03:14:42,226 INFO L933 BasicCegarLoop]: 120 mSDtfsCounter, 142 mSDsluCounter, 230 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 350 SdHoareTripleChecker+Invalid, 540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-02-15 03:14:42,226 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [142 Valid, 350 Invalid, 540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 477 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-02-15 03:14:42,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2022-02-15 03:14:42,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 171. [2022-02-15 03:14:42,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 166 states have (on average 1.5301204819277108) internal successors, (254), 166 states have internal predecessors, (254), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:14:42,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 258 transitions. [2022-02-15 03:14:42,248 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 258 transitions. Word has length 64 [2022-02-15 03:14:42,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:14:42,248 INFO L470 AbstractCegarLoop]: Abstraction has 171 states and 258 transitions. [2022-02-15 03:14:42,248 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:14:42,249 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 258 transitions. [2022-02-15 03:14:42,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-02-15 03:14:42,249 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:14:42,250 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:14:42,250 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-02-15 03:14:42,250 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:14:42,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:14:42,251 INFO L85 PathProgramCache]: Analyzing trace with hash -855656499, now seen corresponding path program 1 times [2022-02-15 03:14:42,251 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:14:42,251 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [605325992] [2022-02-15 03:14:42,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:14:42,258 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-15 03:14:42,259 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-02-15 03:14:42,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:14:42,264 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:14:42,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:14:42,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:14:42,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:14:42,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:14:42,448 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:14:42,448 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [605325992] [2022-02-15 03:14:42,451 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [605325992] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:14:42,451 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:14:42,451 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 03:14:42,452 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413017756] [2022-02-15 03:14:42,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:14:42,452 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 03:14:42,452 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:14:42,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 03:14:42,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 03:14:42,454 INFO L87 Difference]: Start difference. First operand 171 states and 258 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:14:44,223 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:14:46,290 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:14:48,312 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:14:48,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:14:48,958 INFO L93 Difference]: Finished difference Result 415 states and 635 transitions. [2022-02-15 03:14:48,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 03:14:48,958 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 64 [2022-02-15 03:14:48,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:14:48,960 INFO L225 Difference]: With dead ends: 415 [2022-02-15 03:14:48,960 INFO L226 Difference]: Without dead ends: 270 [2022-02-15 03:14:48,961 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 03:14:48,962 INFO L933 BasicCegarLoop]: 121 mSDtfsCounter, 140 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 474 mSolverCounterSat, 62 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 474 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2022-02-15 03:14:48,962 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [140 Valid, 352 Invalid, 537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 474 Invalid, 1 Unknown, 0 Unchecked, 6.4s Time] [2022-02-15 03:14:48,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2022-02-15 03:14:48,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 172. [2022-02-15 03:14:48,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 167 states have (on average 1.5209580838323353) internal successors, (254), 167 states have internal predecessors, (254), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:14:48,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 258 transitions. [2022-02-15 03:14:48,973 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 258 transitions. Word has length 64 [2022-02-15 03:14:48,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:14:48,973 INFO L470 AbstractCegarLoop]: Abstraction has 172 states and 258 transitions. [2022-02-15 03:14:48,973 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:14:48,974 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 258 transitions. [2022-02-15 03:14:48,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-02-15 03:14:48,975 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:14:48,975 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:14:48,975 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-02-15 03:14:48,975 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:14:48,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:14:48,976 INFO L85 PathProgramCache]: Analyzing trace with hash 2032266554, now seen corresponding path program 1 times [2022-02-15 03:14:48,976 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:14:48,976 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2141190679] [2022-02-15 03:14:48,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:14:48,984 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-15 03:14:48,984 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-02-15 03:14:48,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:14:48,989 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:14:49,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:14:49,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:14:49,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:14:49,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:14:49,114 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:14:49,114 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2141190679] [2022-02-15 03:14:49,114 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [2141190679] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:14:49,114 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:14:49,115 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 03:14:49,115 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045360756] [2022-02-15 03:14:49,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:14:49,115 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 03:14:49,115 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:14:49,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 03:14:49,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 03:14:49,116 INFO L87 Difference]: Start difference. First operand 172 states and 258 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:14:50,136 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:14:52,610 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:14:54,624 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:14:55,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:14:55,051 INFO L93 Difference]: Finished difference Result 331 states and 500 transitions. [2022-02-15 03:14:55,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 03:14:55,052 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 65 [2022-02-15 03:14:55,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:14:55,053 INFO L225 Difference]: With dead ends: 331 [2022-02-15 03:14:55,053 INFO L226 Difference]: Without dead ends: 185 [2022-02-15 03:14:55,054 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 03:14:55,054 INFO L933 BasicCegarLoop]: 193 mSDtfsCounter, 22 mSDsluCounter, 304 mSDsCounter, 0 mSdLazyCounter, 356 mSolverCounterSat, 8 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 497 SdHoareTripleChecker+Invalid, 366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 356 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-02-15 03:14:55,055 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 497 Invalid, 366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 356 Invalid, 2 Unknown, 0 Unchecked, 5.9s Time] [2022-02-15 03:14:55,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2022-02-15 03:14:55,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 172. [2022-02-15 03:14:55,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 167 states have (on average 1.5149700598802396) internal successors, (253), 167 states have internal predecessors, (253), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:14:55,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 257 transitions. [2022-02-15 03:14:55,063 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 257 transitions. Word has length 65 [2022-02-15 03:14:55,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:14:55,063 INFO L470 AbstractCegarLoop]: Abstraction has 172 states and 257 transitions. [2022-02-15 03:14:55,064 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:14:55,064 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 257 transitions. [2022-02-15 03:14:55,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-02-15 03:14:55,065 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:14:55,065 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:14:55,065 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-02-15 03:14:55,065 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:14:55,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:14:55,065 INFO L85 PathProgramCache]: Analyzing trace with hash 633197050, now seen corresponding path program 1 times [2022-02-15 03:14:55,066 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:14:55,066 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [747021746] [2022-02-15 03:14:55,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:14:55,072 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-15 03:14:55,073 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-02-15 03:14:55,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:14:55,077 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:14:55,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:14:55,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:14:55,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:14:55,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:14:55,223 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:14:55,223 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [747021746] [2022-02-15 03:14:55,223 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [747021746] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:14:55,223 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:14:55,223 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 03:14:55,223 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137886202] [2022-02-15 03:14:55,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:14:55,224 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 03:14:55,224 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:14:55,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 03:14:55,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 03:14:55,225 INFO L87 Difference]: Start difference. First operand 172 states and 257 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:14:56,486 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:14:57,936 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:14:59,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:14:59,272 INFO L93 Difference]: Finished difference Result 416 states and 633 transitions. [2022-02-15 03:14:59,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 03:14:59,272 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 66 [2022-02-15 03:14:59,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:14:59,274 INFO L225 Difference]: With dead ends: 416 [2022-02-15 03:14:59,274 INFO L226 Difference]: Without dead ends: 270 [2022-02-15 03:14:59,275 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 03:14:59,275 INFO L933 BasicCegarLoop]: 121 mSDtfsCounter, 143 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 475 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 475 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-02-15 03:14:59,276 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [143 Valid, 352 Invalid, 537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 475 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-02-15 03:14:59,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2022-02-15 03:14:59,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 172. [2022-02-15 03:14:59,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 167 states have (on average 1.5029940119760479) internal successors, (251), 167 states have internal predecessors, (251), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:14:59,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 255 transitions. [2022-02-15 03:14:59,288 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 255 transitions. Word has length 66 [2022-02-15 03:14:59,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:14:59,288 INFO L470 AbstractCegarLoop]: Abstraction has 172 states and 255 transitions. [2022-02-15 03:14:59,289 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:14:59,289 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 255 transitions. [2022-02-15 03:14:59,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-02-15 03:14:59,290 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:14:59,290 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:14:59,290 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-02-15 03:14:59,290 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:14:59,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:14:59,291 INFO L85 PathProgramCache]: Analyzing trace with hash 1476478079, now seen corresponding path program 1 times [2022-02-15 03:14:59,291 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:14:59,291 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1851166302] [2022-02-15 03:14:59,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:14:59,302 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-15 03:14:59,303 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-02-15 03:14:59,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:14:59,311 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:14:59,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:14:59,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:14:59,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:14:59,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:14:59,450 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:14:59,450 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1851166302] [2022-02-15 03:14:59,450 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1851166302] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:14:59,450 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:14:59,451 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 03:14:59,451 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331359245] [2022-02-15 03:14:59,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:14:59,451 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 03:14:59,451 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:14:59,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 03:14:59,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 03:14:59,452 INFO L87 Difference]: Start difference. First operand 172 states and 255 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:15:01,462 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:15:01,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:15:01,873 INFO L93 Difference]: Finished difference Result 321 states and 483 transitions. [2022-02-15 03:15:01,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 03:15:01,874 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 67 [2022-02-15 03:15:01,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:15:01,875 INFO L225 Difference]: With dead ends: 321 [2022-02-15 03:15:01,875 INFO L226 Difference]: Without dead ends: 175 [2022-02-15 03:15:01,876 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 03:15:01,876 INFO L933 BasicCegarLoop]: 200 mSDtfsCounter, 11 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 340 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 511 SdHoareTripleChecker+Invalid, 345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 340 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-15 03:15:01,877 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 511 Invalid, 345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 340 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-15 03:15:01,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2022-02-15 03:15:01,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 172. [2022-02-15 03:15:01,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 167 states have (on average 1.4970059880239521) internal successors, (250), 167 states have internal predecessors, (250), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:15:01,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 254 transitions. [2022-02-15 03:15:01,886 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 254 transitions. Word has length 67 [2022-02-15 03:15:01,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:15:01,886 INFO L470 AbstractCegarLoop]: Abstraction has 172 states and 254 transitions. [2022-02-15 03:15:01,886 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:15:01,886 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 254 transitions. [2022-02-15 03:15:01,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-02-15 03:15:01,887 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:15:01,887 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:15:01,887 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-02-15 03:15:01,888 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:15:01,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:15:01,890 INFO L85 PathProgramCache]: Analyzing trace with hash 415908008, now seen corresponding path program 1 times [2022-02-15 03:15:01,890 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:15:01,890 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [861931502] [2022-02-15 03:15:01,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:15:01,896 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-15 03:15:01,897 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-02-15 03:15:01,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:15:01,902 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:15:01,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:15:02,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:15:02,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:15:02,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:15:02,033 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:15:02,033 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [861931502] [2022-02-15 03:15:02,033 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [861931502] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:15:02,033 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:15:02,033 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 03:15:02,033 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522806348] [2022-02-15 03:15:02,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:15:02,034 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 03:15:02,034 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:15:02,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 03:15:02,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 03:15:02,034 INFO L87 Difference]: Start difference. First operand 172 states and 254 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:15:05,381 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:15:06,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:15:06,777 INFO L93 Difference]: Finished difference Result 359 states and 537 transitions. [2022-02-15 03:15:06,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 03:15:06,777 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 67 [2022-02-15 03:15:06,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:15:06,778 INFO L225 Difference]: With dead ends: 359 [2022-02-15 03:15:06,779 INFO L226 Difference]: Without dead ends: 213 [2022-02-15 03:15:06,779 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 03:15:06,780 INFO L933 BasicCegarLoop]: 198 mSDtfsCounter, 29 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 395 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 513 SdHoareTripleChecker+Invalid, 406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 395 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-02-15 03:15:06,780 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [29 Valid, 513 Invalid, 406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 395 Invalid, 1 Unknown, 0 Unchecked, 4.7s Time] [2022-02-15 03:15:06,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2022-02-15 03:15:06,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 194. [2022-02-15 03:15:06,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 189 states have (on average 1.4973544973544974) internal successors, (283), 189 states have internal predecessors, (283), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:15:06,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 287 transitions. [2022-02-15 03:15:06,789 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 287 transitions. Word has length 67 [2022-02-15 03:15:06,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:15:06,789 INFO L470 AbstractCegarLoop]: Abstraction has 194 states and 287 transitions. [2022-02-15 03:15:06,789 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:15:06,790 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 287 transitions. [2022-02-15 03:15:06,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-02-15 03:15:06,790 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:15:06,790 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:15:06,791 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-02-15 03:15:06,791 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:15:06,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:15:06,791 INFO L85 PathProgramCache]: Analyzing trace with hash 520696844, now seen corresponding path program 1 times [2022-02-15 03:15:06,791 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:15:06,791 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1866241754] [2022-02-15 03:15:06,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:15:06,803 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-15 03:15:06,803 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-02-15 03:15:06,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:15:06,808 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:15:06,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:15:06,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:15:06,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:15:06,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:15:06,943 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:15:06,943 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1866241754] [2022-02-15 03:15:06,943 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1866241754] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:15:06,943 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:15:06,944 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 03:15:06,944 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914915616] [2022-02-15 03:15:06,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:15:06,944 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 03:15:06,944 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:15:06,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 03:15:06,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 03:15:06,945 INFO L87 Difference]: Start difference. First operand 194 states and 287 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:15:08,413 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:15:10,661 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:15:12,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:15:12,017 INFO L93 Difference]: Finished difference Result 379 states and 567 transitions. [2022-02-15 03:15:12,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 03:15:12,018 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 80 [2022-02-15 03:15:12,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:15:12,019 INFO L225 Difference]: With dead ends: 379 [2022-02-15 03:15:12,019 INFO L226 Difference]: Without dead ends: 211 [2022-02-15 03:15:12,020 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 03:15:12,020 INFO L933 BasicCegarLoop]: 201 mSDtfsCounter, 34 mSDsluCounter, 316 mSDsCounter, 0 mSdLazyCounter, 390 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 517 SdHoareTripleChecker+Invalid, 400 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 390 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-02-15 03:15:12,021 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 517 Invalid, 400 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 390 Invalid, 1 Unknown, 0 Unchecked, 5.0s Time] [2022-02-15 03:15:12,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2022-02-15 03:15:12,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 194. [2022-02-15 03:15:12,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 189 states have (on average 1.492063492063492) internal successors, (282), 189 states have internal predecessors, (282), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:15:12,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 286 transitions. [2022-02-15 03:15:12,030 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 286 transitions. Word has length 80 [2022-02-15 03:15:12,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:15:12,031 INFO L470 AbstractCegarLoop]: Abstraction has 194 states and 286 transitions. [2022-02-15 03:15:12,031 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:15:12,031 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 286 transitions. [2022-02-15 03:15:12,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-02-15 03:15:12,032 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:15:12,032 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:15:12,032 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-02-15 03:15:12,032 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:15:12,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:15:12,033 INFO L85 PathProgramCache]: Analyzing trace with hash -1404555275, now seen corresponding path program 1 times [2022-02-15 03:15:12,033 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:15:12,033 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [213183210] [2022-02-15 03:15:12,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:15:12,056 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-15 03:15:12,056 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-02-15 03:15:12,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:15:12,062 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:15:12,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:15:12,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:15:12,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:15:12,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:15:12,218 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:15:12,218 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [213183210] [2022-02-15 03:15:12,218 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [213183210] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:15:12,218 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:15:12,219 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 03:15:12,219 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128797577] [2022-02-15 03:15:12,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:15:12,219 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 03:15:12,219 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:15:12,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 03:15:12,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 03:15:12,220 INFO L87 Difference]: Start difference. First operand 194 states and 286 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:15:15,040 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 [] [2022-02-15 03:15:15,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:15:15,540 INFO L93 Difference]: Finished difference Result 390 states and 581 transitions. [2022-02-15 03:15:15,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 03:15:15,541 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 82 [2022-02-15 03:15:15,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:15:15,542 INFO L225 Difference]: With dead ends: 390 [2022-02-15 03:15:15,542 INFO L226 Difference]: Without dead ends: 222 [2022-02-15 03:15:15,543 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 03:15:15,543 INFO L933 BasicCegarLoop]: 229 mSDtfsCounter, 19 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 395 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 574 SdHoareTripleChecker+Invalid, 404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 395 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-02-15 03:15:15,543 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 574 Invalid, 404 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 395 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-02-15 03:15:15,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2022-02-15 03:15:15,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 210. [2022-02-15 03:15:15,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 205 states have (on average 1.4878048780487805) internal successors, (305), 205 states have internal predecessors, (305), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:15:15,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 309 transitions. [2022-02-15 03:15:15,553 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 309 transitions. Word has length 82 [2022-02-15 03:15:15,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:15:15,554 INFO L470 AbstractCegarLoop]: Abstraction has 210 states and 309 transitions. [2022-02-15 03:15:15,554 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:15:15,554 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 309 transitions. [2022-02-15 03:15:15,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-02-15 03:15:15,571 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:15:15,572 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:15:15,572 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-02-15 03:15:15,572 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:15:15,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:15:15,573 INFO L85 PathProgramCache]: Analyzing trace with hash 1888193454, now seen corresponding path program 1 times [2022-02-15 03:15:15,573 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:15:15,573 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [418186851] [2022-02-15 03:15:15,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:15:15,593 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-15 03:15:15,593 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-02-15 03:15:15,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:15:15,598 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:15:15,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:15:15,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:15:15,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:15:15,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:15:15,728 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:15:15,728 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [418186851] [2022-02-15 03:15:15,729 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [418186851] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:15:15,729 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:15:15,729 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 03:15:15,729 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110380999] [2022-02-15 03:15:15,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:15:15,729 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 03:15:15,729 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:15:15,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 03:15:15,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 03:15:15,730 INFO L87 Difference]: Start difference. First operand 210 states and 309 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) [2022-02-15 03:15:16,995 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:15:18,040 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:15:19,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:15:19,949 INFO L93 Difference]: Finished difference Result 411 states and 611 transitions. [2022-02-15 03:15:19,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 03:15:19,950 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 83 [2022-02-15 03:15:19,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:15:19,951 INFO L225 Difference]: With dead ends: 411 [2022-02-15 03:15:19,951 INFO L226 Difference]: Without dead ends: 227 [2022-02-15 03:15:19,952 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 03:15:19,953 INFO L933 BasicCegarLoop]: 201 mSDtfsCounter, 36 mSDsluCounter, 316 mSDsCounter, 0 mSdLazyCounter, 391 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 517 SdHoareTripleChecker+Invalid, 400 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 391 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-02-15 03:15:19,953 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 517 Invalid, 400 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 391 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2022-02-15 03:15:19,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2022-02-15 03:15:19,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 210. [2022-02-15 03:15:19,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 205 states have (on average 1.4829268292682927) internal successors, (304), 205 states have internal predecessors, (304), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:15:19,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 308 transitions. [2022-02-15 03:15:19,966 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 308 transitions. Word has length 83 [2022-02-15 03:15:19,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:15:19,967 INFO L470 AbstractCegarLoop]: Abstraction has 210 states and 308 transitions. [2022-02-15 03:15:19,967 INFO L471 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) [2022-02-15 03:15:19,967 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 308 transitions. [2022-02-15 03:15:19,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-02-15 03:15:19,968 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:15:19,968 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:15:19,968 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-02-15 03:15:19,969 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:15:19,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:15:19,969 INFO L85 PathProgramCache]: Analyzing trace with hash -1922791479, now seen corresponding path program 1 times [2022-02-15 03:15:19,969 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:15:19,969 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1634833166] [2022-02-15 03:15:19,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:15:19,989 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-15 03:15:19,990 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-02-15 03:15:19,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:15:19,997 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:15:20,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:15:20,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:15:20,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:15:20,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:15:20,137 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:15:20,137 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1634833166] [2022-02-15 03:15:20,138 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1634833166] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:15:20,138 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:15:20,138 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 03:15:20,138 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001537187] [2022-02-15 03:15:20,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:15:20,138 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 03:15:20,138 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:15:20,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 03:15:20,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 03:15:20,139 INFO L87 Difference]: Start difference. First operand 210 states and 308 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:15:22,818 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:15:25,643 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:15:26,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:15:26,228 INFO L93 Difference]: Finished difference Result 492 states and 737 transitions. [2022-02-15 03:15:26,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 03:15:26,228 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 85 [2022-02-15 03:15:26,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:15:26,230 INFO L225 Difference]: With dead ends: 492 [2022-02-15 03:15:26,230 INFO L226 Difference]: Without dead ends: 308 [2022-02-15 03:15:26,231 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 03:15:26,231 INFO L933 BasicCegarLoop]: 121 mSDtfsCounter, 142 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 62 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-02-15 03:15:26,232 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [142 Valid, 352 Invalid, 537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 473 Invalid, 2 Unknown, 0 Unchecked, 6.0s Time] [2022-02-15 03:15:26,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308 states. [2022-02-15 03:15:26,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 210. [2022-02-15 03:15:26,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 205 states have (on average 1.4682926829268292) internal successors, (301), 205 states have internal predecessors, (301), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:15:26,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 305 transitions. [2022-02-15 03:15:26,248 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 305 transitions. Word has length 85 [2022-02-15 03:15:26,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:15:26,249 INFO L470 AbstractCegarLoop]: Abstraction has 210 states and 305 transitions. [2022-02-15 03:15:26,249 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:15:26,250 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 305 transitions. [2022-02-15 03:15:26,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-02-15 03:15:26,251 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:15:26,251 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:15:26,252 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-02-15 03:15:26,252 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:15:26,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:15:26,252 INFO L85 PathProgramCache]: Analyzing trace with hash 1358981921, now seen corresponding path program 1 times [2022-02-15 03:15:26,252 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:15:26,252 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2005323595] [2022-02-15 03:15:26,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:15:26,282 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-15 03:15:26,283 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-02-15 03:15:26,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:15:26,289 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:15:26,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:15:26,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:15:26,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:15:26,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:15:26,433 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:15:26,433 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2005323595] [2022-02-15 03:15:26,433 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [2005323595] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:15:26,433 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:15:26,433 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 03:15:26,433 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704619893] [2022-02-15 03:15:26,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:15:26,434 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 03:15:26,434 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:15:26,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 03:15:26,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 03:15:26,434 INFO L87 Difference]: Start difference. First operand 210 states and 305 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:15:28,444 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:15:29,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:15:29,013 INFO L93 Difference]: Finished difference Result 500 states and 739 transitions. [2022-02-15 03:15:29,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 03:15:29,014 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (3), 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 89 [2022-02-15 03:15:29,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:15:29,015 INFO L225 Difference]: With dead ends: 500 [2022-02-15 03:15:29,015 INFO L226 Difference]: Without dead ends: 316 [2022-02-15 03:15:29,016 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 03:15:29,016 INFO L933 BasicCegarLoop]: 185 mSDtfsCounter, 91 mSDsluCounter, 302 mSDsCounter, 0 mSdLazyCounter, 531 mSolverCounterSat, 14 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 487 SdHoareTripleChecker+Invalid, 546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 531 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-02-15 03:15:29,017 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [91 Valid, 487 Invalid, 546 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 531 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-02-15 03:15:29,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2022-02-15 03:15:29,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 251. [2022-02-15 03:15:29,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 251 states, 246 states have (on average 1.5) internal successors, (369), 246 states have internal predecessors, (369), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:15:29,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 373 transitions. [2022-02-15 03:15:29,028 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 373 transitions. Word has length 89 [2022-02-15 03:15:29,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:15:29,028 INFO L470 AbstractCegarLoop]: Abstraction has 251 states and 373 transitions. [2022-02-15 03:15:29,029 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:15:29,029 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 373 transitions. [2022-02-15 03:15:29,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-02-15 03:15:29,030 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:15:29,030 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:15:29,030 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-02-15 03:15:29,030 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:15:29,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:15:29,030 INFO L85 PathProgramCache]: Analyzing trace with hash 1782628643, now seen corresponding path program 1 times [2022-02-15 03:15:29,031 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:15:29,031 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1896972449] [2022-02-15 03:15:29,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:15:29,042 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-15 03:15:29,043 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-02-15 03:15:29,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:15:29,048 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:15:29,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:15:29,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:15:29,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:15:29,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:15:29,171 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:15:29,171 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1896972449] [2022-02-15 03:15:29,171 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1896972449] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:15:29,171 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:15:29,171 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 03:15:29,171 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218734280] [2022-02-15 03:15:29,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:15:29,172 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 03:15:29,172 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:15:29,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 03:15:29,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 03:15:29,172 INFO L87 Difference]: Start difference. First operand 251 states and 373 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:15:31,171 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:15:33,934 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:15:35,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:15:35,346 INFO L93 Difference]: Finished difference Result 523 states and 783 transitions. [2022-02-15 03:15:35,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 03:15:35,347 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (3), 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 89 [2022-02-15 03:15:35,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:15:35,350 INFO L225 Difference]: With dead ends: 523 [2022-02-15 03:15:35,350 INFO L226 Difference]: Without dead ends: 298 [2022-02-15 03:15:35,351 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 03:15:35,352 INFO L933 BasicCegarLoop]: 245 mSDtfsCounter, 34 mSDsluCounter, 360 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 605 SdHoareTripleChecker+Invalid, 475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-02-15 03:15:35,352 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 605 Invalid, 475 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 464 Invalid, 1 Unknown, 0 Unchecked, 6.1s Time] [2022-02-15 03:15:35,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2022-02-15 03:15:35,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 275. [2022-02-15 03:15:35,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 275 states, 270 states have (on average 1.5) internal successors, (405), 270 states have internal predecessors, (405), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:15:35,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 409 transitions. [2022-02-15 03:15:35,384 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 409 transitions. Word has length 89 [2022-02-15 03:15:35,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:15:35,385 INFO L470 AbstractCegarLoop]: Abstraction has 275 states and 409 transitions. [2022-02-15 03:15:35,385 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:15:35,385 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 409 transitions. [2022-02-15 03:15:35,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-02-15 03:15:35,386 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:15:35,386 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:15:35,386 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-02-15 03:15:35,387 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:15:35,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:15:35,387 INFO L85 PathProgramCache]: Analyzing trace with hash 1522772933, now seen corresponding path program 1 times [2022-02-15 03:15:35,387 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:15:35,387 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [389320791] [2022-02-15 03:15:35,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:15:35,400 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-15 03:15:35,400 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-02-15 03:15:35,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:15:35,408 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:15:35,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:15:35,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:15:35,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:15:35,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:15:35,539 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:15:35,539 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [389320791] [2022-02-15 03:15:35,539 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [389320791] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:15:35,539 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:15:35,539 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 03:15:35,539 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35466968] [2022-02-15 03:15:35,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:15:35,540 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 03:15:35,540 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:15:35,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 03:15:35,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 03:15:35,541 INFO L87 Difference]: Start difference. First operand 275 states and 409 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:15:37,554 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:15:38,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:15:38,052 INFO L93 Difference]: Finished difference Result 622 states and 939 transitions. [2022-02-15 03:15:38,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 03:15:38,052 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 90 [2022-02-15 03:15:38,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:15:38,054 INFO L225 Difference]: With dead ends: 622 [2022-02-15 03:15:38,054 INFO L226 Difference]: Without dead ends: 373 [2022-02-15 03:15:38,055 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 03:15:38,056 INFO L933 BasicCegarLoop]: 121 mSDtfsCounter, 116 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 471 mSolverCounterSat, 61 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 471 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-02-15 03:15:38,056 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [116 Valid, 352 Invalid, 533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 471 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-02-15 03:15:38,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 373 states. [2022-02-15 03:15:38,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 373 to 297. [2022-02-15 03:15:38,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 297 states, 292 states have (on average 1.5342465753424657) internal successors, (448), 292 states have internal predecessors, (448), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:15:38,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 452 transitions. [2022-02-15 03:15:38,070 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 452 transitions. Word has length 90 [2022-02-15 03:15:38,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:15:38,071 INFO L470 AbstractCegarLoop]: Abstraction has 297 states and 452 transitions. [2022-02-15 03:15:38,071 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:15:38,071 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 452 transitions. [2022-02-15 03:15:38,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-02-15 03:15:38,072 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:15:38,072 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:15:38,072 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-02-15 03:15:38,072 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:15:38,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:15:38,073 INFO L85 PathProgramCache]: Analyzing trace with hash -1820617165, now seen corresponding path program 1 times [2022-02-15 03:15:38,073 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:15:38,073 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [341720407] [2022-02-15 03:15:38,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:15:38,091 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-15 03:15:38,092 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-02-15 03:15:38,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:15:38,101 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:15:38,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:15:38,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:15:38,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:15:38,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:15:38,252 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:15:38,252 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [341720407] [2022-02-15 03:15:38,252 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [341720407] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:15:38,252 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:15:38,253 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 03:15:38,253 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788214518] [2022-02-15 03:15:38,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:15:38,253 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 03:15:38,253 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:15:38,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 03:15:38,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 03:15:38,254 INFO L87 Difference]: Start difference. First operand 297 states and 452 transitions. Second operand has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:15:41,222 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:15:42,614 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:15:43,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:15:43,156 INFO L93 Difference]: Finished difference Result 642 states and 979 transitions. [2022-02-15 03:15:43,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 03:15:43,156 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 102 [2022-02-15 03:15:43,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:15:43,161 INFO L225 Difference]: With dead ends: 642 [2022-02-15 03:15:43,161 INFO L226 Difference]: Without dead ends: 371 [2022-02-15 03:15:43,162 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 03:15:43,164 INFO L933 BasicCegarLoop]: 123 mSDtfsCounter, 139 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 471 mSolverCounterSat, 57 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 356 SdHoareTripleChecker+Invalid, 529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 471 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-02-15 03:15:43,164 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [139 Valid, 356 Invalid, 529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 471 Invalid, 1 Unknown, 0 Unchecked, 4.8s Time] [2022-02-15 03:15:43,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states. [2022-02-15 03:15:43,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 297. [2022-02-15 03:15:43,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 297 states, 292 states have (on average 1.523972602739726) internal successors, (445), 292 states have internal predecessors, (445), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:15:43,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 449 transitions. [2022-02-15 03:15:43,180 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 449 transitions. Word has length 102 [2022-02-15 03:15:43,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:15:43,180 INFO L470 AbstractCegarLoop]: Abstraction has 297 states and 449 transitions. [2022-02-15 03:15:43,180 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:15:43,181 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 449 transitions. [2022-02-15 03:15:43,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-02-15 03:15:43,182 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:15:43,182 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:15:43,182 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-02-15 03:15:43,182 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:15:43,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:15:43,183 INFO L85 PathProgramCache]: Analyzing trace with hash 2071438375, now seen corresponding path program 1 times [2022-02-15 03:15:43,183 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:15:43,183 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [226291578] [2022-02-15 03:15:43,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:15:43,224 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-15 03:15:43,224 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-02-15 03:15:43,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:15:43,232 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:15:43,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:15:43,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:15:43,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:15:43,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:15:43,374 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:15:43,374 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [226291578] [2022-02-15 03:15:43,374 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [226291578] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:15:43,374 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:15:43,374 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 03:15:43,374 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246990049] [2022-02-15 03:15:43,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:15:43,377 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 03:15:43,377 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:15:43,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 03:15:43,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 03:15:43,378 INFO L87 Difference]: Start difference. First operand 297 states and 449 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) [2022-02-15 03:15:46,014 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:15:48,443 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:15:48,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:15:48,907 INFO L93 Difference]: Finished difference Result 613 states and 931 transitions. [2022-02-15 03:15:48,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 03:15:48,908 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 105 [2022-02-15 03:15:48,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:15:48,910 INFO L225 Difference]: With dead ends: 613 [2022-02-15 03:15:48,910 INFO L226 Difference]: Without dead ends: 342 [2022-02-15 03:15:48,911 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 03:15:48,911 INFO L933 BasicCegarLoop]: 186 mSDtfsCounter, 98 mSDsluCounter, 301 mSDsCounter, 0 mSdLazyCounter, 499 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 487 SdHoareTripleChecker+Invalid, 509 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 499 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-02-15 03:15:48,911 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [98 Valid, 487 Invalid, 509 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 499 Invalid, 1 Unknown, 0 Unchecked, 5.5s Time] [2022-02-15 03:15:48,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2022-02-15 03:15:48,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 297. [2022-02-15 03:15:48,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 297 states, 292 states have (on average 1.5205479452054795) internal successors, (444), 292 states have internal predecessors, (444), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:15:48,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 448 transitions. [2022-02-15 03:15:48,930 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 448 transitions. Word has length 105 [2022-02-15 03:15:48,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:15:48,930 INFO L470 AbstractCegarLoop]: Abstraction has 297 states and 448 transitions. [2022-02-15 03:15:48,930 INFO L471 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) [2022-02-15 03:15:48,930 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 448 transitions. [2022-02-15 03:15:48,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-02-15 03:15:48,931 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:15:48,931 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:15:48,932 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-02-15 03:15:48,932 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:15:48,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:15:48,932 INFO L85 PathProgramCache]: Analyzing trace with hash -962611671, now seen corresponding path program 1 times [2022-02-15 03:15:48,932 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:15:48,932 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2082951190] [2022-02-15 03:15:48,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:15:48,954 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-15 03:15:48,954 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-02-15 03:15:48,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:15:48,961 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:15:49,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:15:49,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:15:49,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:15:49,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:15:49,111 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:15:49,111 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2082951190] [2022-02-15 03:15:49,111 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [2082951190] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:15:49,111 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:15:49,112 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 03:15:49,112 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434836769] [2022-02-15 03:15:49,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:15:49,112 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 03:15:49,112 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:15:49,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 03:15:49,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 03:15:49,113 INFO L87 Difference]: Start difference. First operand 297 states and 448 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) [2022-02-15 03:15:50,247 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:15:52,181 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:15:53,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:15:53,322 INFO L93 Difference]: Finished difference Result 579 states and 881 transitions. [2022-02-15 03:15:53,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 03:15:53,323 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 105 [2022-02-15 03:15:53,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:15:53,324 INFO L225 Difference]: With dead ends: 579 [2022-02-15 03:15:53,324 INFO L226 Difference]: Without dead ends: 308 [2022-02-15 03:15:53,325 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 03:15:53,325 INFO L933 BasicCegarLoop]: 238 mSDtfsCounter, 36 mSDsluCounter, 353 mSDsCounter, 0 mSdLazyCounter, 425 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 591 SdHoareTripleChecker+Invalid, 430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 425 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-02-15 03:15:53,326 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 591 Invalid, 430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 425 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2022-02-15 03:15:53,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308 states. [2022-02-15 03:15:53,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 297. [2022-02-15 03:15:53,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 297 states, 292 states have (on average 1.5171232876712328) internal successors, (443), 292 states have internal predecessors, (443), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:15:53,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 447 transitions. [2022-02-15 03:15:53,340 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 447 transitions. Word has length 105 [2022-02-15 03:15:53,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:15:53,340 INFO L470 AbstractCegarLoop]: Abstraction has 297 states and 447 transitions. [2022-02-15 03:15:53,340 INFO L471 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) [2022-02-15 03:15:53,340 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 447 transitions. [2022-02-15 03:15:53,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-02-15 03:15:53,341 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:15:53,341 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:15:53,342 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-02-15 03:15:53,342 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:15:53,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:15:53,342 INFO L85 PathProgramCache]: Analyzing trace with hash -1379274642, now seen corresponding path program 1 times [2022-02-15 03:15:53,342 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:15:53,342 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [211238681] [2022-02-15 03:15:53,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:15:53,364 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-15 03:15:53,364 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-02-15 03:15:53,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:15:53,370 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:15:53,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:15:53,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:15:53,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:15:53,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:15:53,500 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:15:53,501 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [211238681] [2022-02-15 03:15:53,501 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [211238681] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:15:53,501 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:15:53,501 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 03:15:53,501 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028368534] [2022-02-15 03:15:53,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:15:53,502 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 03:15:53,502 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:15:53,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 03:15:53,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 03:15:53,503 INFO L87 Difference]: Start difference. First operand 297 states and 447 transitions. Second operand has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:15:56,741 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 [] [2022-02-15 03:15:57,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:15:57,957 INFO L93 Difference]: Finished difference Result 613 states and 927 transitions. [2022-02-15 03:15:57,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 03:15:57,957 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 111 [2022-02-15 03:15:57,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:15:57,958 INFO L225 Difference]: With dead ends: 613 [2022-02-15 03:15:57,958 INFO L226 Difference]: Without dead ends: 342 [2022-02-15 03:15:57,959 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 03:15:57,960 INFO L933 BasicCegarLoop]: 191 mSDtfsCounter, 86 mSDsluCounter, 308 mSDsCounter, 0 mSdLazyCounter, 505 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 499 SdHoareTripleChecker+Invalid, 514 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 505 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-02-15 03:15:57,960 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [86 Valid, 499 Invalid, 514 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 505 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2022-02-15 03:15:57,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2022-02-15 03:15:57,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 297. [2022-02-15 03:15:58,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 297 states, 292 states have (on average 1.5136986301369864) internal successors, (442), 292 states have internal predecessors, (442), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:15:58,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 446 transitions. [2022-02-15 03:15:58,006 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 446 transitions. Word has length 111 [2022-02-15 03:15:58,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:15:58,006 INFO L470 AbstractCegarLoop]: Abstraction has 297 states and 446 transitions. [2022-02-15 03:15:58,006 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:15:58,007 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 446 transitions. [2022-02-15 03:15:58,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-02-15 03:15:58,008 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:15:58,008 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:15:58,008 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-02-15 03:15:58,008 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:15:58,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:15:58,009 INFO L85 PathProgramCache]: Analyzing trace with hash -1796671248, now seen corresponding path program 1 times [2022-02-15 03:15:58,009 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:15:58,010 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [566464666] [2022-02-15 03:15:58,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:15:58,030 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-15 03:15:58,030 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-02-15 03:15:58,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:15:58,036 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:15:58,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:15:58,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:15:58,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:15:58,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:15:58,172 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:15:58,172 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [566464666] [2022-02-15 03:15:58,172 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [566464666] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:15:58,173 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:15:58,173 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-15 03:15:58,173 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173585939] [2022-02-15 03:15:58,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:15:58,173 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-15 03:15:58,173 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:15:58,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-15 03:15:58,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-15 03:15:58,174 INFO L87 Difference]: Start difference. First operand 297 states and 446 transitions. Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 3 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:16:00,625 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 [] [2022-02-15 03:16:01,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:16:01,260 INFO L93 Difference]: Finished difference Result 833 states and 1271 transitions. [2022-02-15 03:16:01,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-15 03:16:01,262 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 3 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 111 [2022-02-15 03:16:01,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:16:01,268 INFO L225 Difference]: With dead ends: 833 [2022-02-15 03:16:01,268 INFO L226 Difference]: Without dead ends: 562 [2022-02-15 03:16:01,272 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-15 03:16:01,273 INFO L933 BasicCegarLoop]: 248 mSDtfsCounter, 137 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 291 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 442 SdHoareTripleChecker+Invalid, 301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-02-15 03:16:01,273 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [137 Valid, 442 Invalid, 301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 291 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-02-15 03:16:01,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 562 states. [2022-02-15 03:16:01,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 562 to 562. [2022-02-15 03:16:01,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 562 states, 557 states have (on average 1.511669658886894) internal successors, (842), 557 states have internal predecessors, (842), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:16:01,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 562 states to 562 states and 846 transitions. [2022-02-15 03:16:01,299 INFO L78 Accepts]: Start accepts. Automaton has 562 states and 846 transitions. Word has length 111 [2022-02-15 03:16:01,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:16:01,299 INFO L470 AbstractCegarLoop]: Abstraction has 562 states and 846 transitions. [2022-02-15 03:16:01,300 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 3 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:16:01,300 INFO L276 IsEmpty]: Start isEmpty. Operand 562 states and 846 transitions. [2022-02-15 03:16:01,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-02-15 03:16:01,301 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:16:01,301 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:16:01,301 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-02-15 03:16:01,301 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:16:01,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:16:01,302 INFO L85 PathProgramCache]: Analyzing trace with hash 812116210, now seen corresponding path program 1 times [2022-02-15 03:16:01,302 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:16:01,302 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [431781839] [2022-02-15 03:16:01,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:16:01,323 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-15 03:16:01,323 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-02-15 03:16:01,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:16:01,329 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:16:01,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:16:01,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:16:01,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:16:01,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:16:01,423 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:16:01,423 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [431781839] [2022-02-15 03:16:01,423 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [431781839] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:16:01,423 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:16:01,424 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-15 03:16:01,424 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570446655] [2022-02-15 03:16:01,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:16:01,424 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-15 03:16:01,424 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:16:01,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-15 03:16:01,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-15 03:16:01,425 INFO L87 Difference]: Start difference. First operand 562 states and 846 transitions. Second operand has 4 states, 4 states have (on average 22.25) internal successors, (89), 3 states have internal predecessors, (89), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:16:02,446 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:16:04,897 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:16:05,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:16:05,194 INFO L93 Difference]: Finished difference Result 1125 states and 1699 transitions. [2022-02-15 03:16:05,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-15 03:16:05,195 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.25) internal successors, (89), 3 states have internal predecessors, (89), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 111 [2022-02-15 03:16:05,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:16:05,197 INFO L225 Difference]: With dead ends: 1125 [2022-02-15 03:16:05,197 INFO L226 Difference]: Without dead ends: 589 [2022-02-15 03:16:05,198 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-15 03:16:05,199 INFO L933 BasicCegarLoop]: 225 mSDtfsCounter, 15 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 419 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-02-15 03:16:05,199 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 419 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 253 Invalid, 1 Unknown, 0 Unchecked, 3.7s Time] [2022-02-15 03:16:05,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 589 states. [2022-02-15 03:16:05,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 589 to 589. [2022-02-15 03:16:05,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 589 states, 584 states have (on average 1.5017123287671232) internal successors, (877), 584 states have internal predecessors, (877), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:16:05,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 589 states to 589 states and 881 transitions. [2022-02-15 03:16:05,227 INFO L78 Accepts]: Start accepts. Automaton has 589 states and 881 transitions. Word has length 111 [2022-02-15 03:16:05,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:16:05,227 INFO L470 AbstractCegarLoop]: Abstraction has 589 states and 881 transitions. [2022-02-15 03:16:05,227 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.25) internal successors, (89), 3 states have internal predecessors, (89), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:16:05,227 INFO L276 IsEmpty]: Start isEmpty. Operand 589 states and 881 transitions. [2022-02-15 03:16:05,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-02-15 03:16:05,229 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:16:05,229 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:16:05,229 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-02-15 03:16:05,229 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:16:05,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:16:05,230 INFO L85 PathProgramCache]: Analyzing trace with hash -1606368268, now seen corresponding path program 1 times [2022-02-15 03:16:05,230 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:16:05,230 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1120409658] [2022-02-15 03:16:05,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:16:05,252 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-15 03:16:05,252 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-02-15 03:16:05,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:16:05,258 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:16:05,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:16:05,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:16:05,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:16:05,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:16:05,348 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:16:05,349 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1120409658] [2022-02-15 03:16:05,349 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1120409658] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:16:05,349 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:16:05,349 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-15 03:16:05,349 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149360614] [2022-02-15 03:16:05,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:16:05,349 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-15 03:16:05,349 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:16:05,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-15 03:16:05,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-15 03:16:05,350 INFO L87 Difference]: Start difference. First operand 589 states and 881 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 3 states have internal predecessors, (73), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:16:07,367 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:16:07,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:16:07,654 INFO L93 Difference]: Finished difference Result 1154 states and 1735 transitions. [2022-02-15 03:16:07,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-15 03:16:07,654 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 3 states have internal predecessors, (73), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 111 [2022-02-15 03:16:07,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:16:07,657 INFO L225 Difference]: With dead ends: 1154 [2022-02-15 03:16:07,657 INFO L226 Difference]: Without dead ends: 591 [2022-02-15 03:16:07,659 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-15 03:16:07,660 INFO L933 BasicCegarLoop]: 213 mSDtfsCounter, 4 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 237 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 398 SdHoareTripleChecker+Invalid, 240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 237 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-02-15 03:16:07,660 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 398 Invalid, 240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 237 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-02-15 03:16:07,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 591 states. [2022-02-15 03:16:07,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 591 to 591. [2022-02-15 03:16:07,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 591 states, 586 states have (on average 1.5) internal successors, (879), 586 states have internal predecessors, (879), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:16:07,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 591 states to 591 states and 883 transitions. [2022-02-15 03:16:07,689 INFO L78 Accepts]: Start accepts. Automaton has 591 states and 883 transitions. Word has length 111 [2022-02-15 03:16:07,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:16:07,689 INFO L470 AbstractCegarLoop]: Abstraction has 591 states and 883 transitions. [2022-02-15 03:16:07,689 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 3 states have internal predecessors, (73), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:16:07,689 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states and 883 transitions. [2022-02-15 03:16:07,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-02-15 03:16:07,691 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:16:07,691 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:16:07,691 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-02-15 03:16:07,692 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:16:07,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:16:07,693 INFO L85 PathProgramCache]: Analyzing trace with hash 1973920481, now seen corresponding path program 1 times [2022-02-15 03:16:07,693 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:16:07,693 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1426217032] [2022-02-15 03:16:07,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:16:07,743 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-15 03:16:07,744 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-02-15 03:16:07,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:16:07,751 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:16:07,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:16:07,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:16:07,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:16:07,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:16:07,871 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:16:07,871 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1426217032] [2022-02-15 03:16:07,871 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1426217032] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:16:07,871 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:16:07,871 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 03:16:07,871 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678695152] [2022-02-15 03:16:07,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:16:07,872 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 03:16:07,872 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:16:07,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 03:16:07,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 03:16:07,872 INFO L87 Difference]: Start difference. First operand 591 states and 883 transitions. Second operand has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:16:09,510 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:16:11,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:16:11,077 INFO L93 Difference]: Finished difference Result 1251 states and 1880 transitions. [2022-02-15 03:16:11,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 03:16:11,077 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 130 [2022-02-15 03:16:11,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:16:11,080 INFO L225 Difference]: With dead ends: 1251 [2022-02-15 03:16:11,080 INFO L226 Difference]: Without dead ends: 688 [2022-02-15 03:16:11,082 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 03:16:11,082 INFO L933 BasicCegarLoop]: 278 mSDtfsCounter, 80 mSDsluCounter, 392 mSDsCounter, 0 mSdLazyCounter, 626 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 670 SdHoareTripleChecker+Invalid, 637 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 626 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-02-15 03:16:11,082 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [80 Valid, 670 Invalid, 637 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 626 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-02-15 03:16:11,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 688 states. [2022-02-15 03:16:11,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 688 to 615. [2022-02-15 03:16:11,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 615 states, 610 states have (on average 1.5) internal successors, (915), 610 states have internal predecessors, (915), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:16:11,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 615 states to 615 states and 919 transitions. [2022-02-15 03:16:11,113 INFO L78 Accepts]: Start accepts. Automaton has 615 states and 919 transitions. Word has length 130 [2022-02-15 03:16:11,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:16:11,113 INFO L470 AbstractCegarLoop]: Abstraction has 615 states and 919 transitions. [2022-02-15 03:16:11,114 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:16:11,114 INFO L276 IsEmpty]: Start isEmpty. Operand 615 states and 919 transitions. [2022-02-15 03:16:11,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-02-15 03:16:11,115 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:16:11,115 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1] [2022-02-15 03:16:11,116 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-02-15 03:16:11,116 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:16:11,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:16:11,116 INFO L85 PathProgramCache]: Analyzing trace with hash 1882676199, now seen corresponding path program 1 times [2022-02-15 03:16:11,116 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:16:11,116 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [605628640] [2022-02-15 03:16:11,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:16:11,160 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-15 03:16:11,160 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-02-15 03:16:11,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:16:11,166 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:16:11,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:16:11,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:16:11,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:16:11,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:16:11,324 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:16:11,324 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [605628640] [2022-02-15 03:16:11,324 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [605628640] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:16:11,325 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:16:11,325 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 03:16:11,325 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777370452] [2022-02-15 03:16:11,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:16:11,325 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 03:16:11,325 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:16:11,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 03:16:11,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 03:16:11,327 INFO L87 Difference]: Start difference. First operand 615 states and 919 transitions. Second operand has 5 states, 5 states have (on average 23.2) internal successors, (116), 4 states have internal predecessors, (116), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:16:13,594 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:16:15,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:16:15,651 INFO L93 Difference]: Finished difference Result 1333 states and 1986 transitions. [2022-02-15 03:16:15,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 03:16:15,652 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 146 [2022-02-15 03:16:15,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:16:15,655 INFO L225 Difference]: With dead ends: 1333 [2022-02-15 03:16:15,655 INFO L226 Difference]: Without dead ends: 746 [2022-02-15 03:16:15,657 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 03:16:15,657 INFO L933 BasicCegarLoop]: 131 mSDtfsCounter, 134 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 372 SdHoareTripleChecker+Invalid, 520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-02-15 03:16:15,658 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [134 Valid, 372 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 464 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2022-02-15 03:16:15,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 746 states. [2022-02-15 03:16:15,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 746 to 615. [2022-02-15 03:16:15,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 615 states, 610 states have (on average 1.4918032786885247) internal successors, (910), 610 states have internal predecessors, (910), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:16:15,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 615 states to 615 states and 914 transitions. [2022-02-15 03:16:15,693 INFO L78 Accepts]: Start accepts. Automaton has 615 states and 914 transitions. Word has length 146 [2022-02-15 03:16:15,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:16:15,693 INFO L470 AbstractCegarLoop]: Abstraction has 615 states and 914 transitions. [2022-02-15 03:16:15,693 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 4 states have internal predecessors, (116), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:16:15,693 INFO L276 IsEmpty]: Start isEmpty. Operand 615 states and 914 transitions. [2022-02-15 03:16:15,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2022-02-15 03:16:15,695 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:16:15,695 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:16:15,695 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-02-15 03:16:15,695 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:16:15,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:16:15,696 INFO L85 PathProgramCache]: Analyzing trace with hash 407951406, now seen corresponding path program 1 times [2022-02-15 03:16:15,696 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:16:15,696 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1636336924] [2022-02-15 03:16:15,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:16:15,742 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-15 03:16:15,742 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-02-15 03:16:15,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:16:15,750 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:16:15,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:16:15,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:16:15,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:16:15,922 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:16:15,922 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:16:15,922 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1636336924] [2022-02-15 03:16:15,922 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1636336924] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:16:15,922 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:16:15,922 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 03:16:15,922 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547609577] [2022-02-15 03:16:15,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:16:15,923 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 03:16:15,923 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:16:15,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 03:16:15,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 03:16:15,924 INFO L87 Difference]: Start difference. First operand 615 states and 914 transitions. Second operand has 5 states, 5 states have (on average 24.4) internal successors, (122), 4 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) [2022-02-15 03:16:18,492 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:16:20,512 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:16:21,701 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:16:22,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:16:22,243 INFO L93 Difference]: Finished difference Result 1333 states and 1976 transitions. [2022-02-15 03:16:22,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 03:16:22,244 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.4) internal successors, (122), 4 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 152 [2022-02-15 03:16:22,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:16:22,248 INFO L225 Difference]: With dead ends: 1333 [2022-02-15 03:16:22,248 INFO L226 Difference]: Without dead ends: 746 [2022-02-15 03:16:22,250 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 03:16:22,252 INFO L933 BasicCegarLoop]: 136 mSDtfsCounter, 122 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 469 mSolverCounterSat, 53 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 469 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-02-15 03:16:22,252 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [122 Valid, 382 Invalid, 524 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 469 Invalid, 2 Unknown, 0 Unchecked, 6.3s Time] [2022-02-15 03:16:22,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 746 states. [2022-02-15 03:16:22,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 746 to 591. [2022-02-15 03:16:22,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 591 states, 586 states have (on average 1.4897610921501707) internal successors, (873), 586 states have internal predecessors, (873), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:16:22,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 591 states to 591 states and 877 transitions. [2022-02-15 03:16:22,290 INFO L78 Accepts]: Start accepts. Automaton has 591 states and 877 transitions. Word has length 152 [2022-02-15 03:16:22,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:16:22,290 INFO L470 AbstractCegarLoop]: Abstraction has 591 states and 877 transitions. [2022-02-15 03:16:22,290 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.4) internal successors, (122), 4 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) [2022-02-15 03:16:22,290 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states and 877 transitions. [2022-02-15 03:16:22,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-02-15 03:16:22,292 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:16:22,292 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:16:22,293 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-02-15 03:16:22,293 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:16:22,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:16:22,294 INFO L85 PathProgramCache]: Analyzing trace with hash 877747479, now seen corresponding path program 1 times [2022-02-15 03:16:22,294 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:16:22,294 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [769743921] [2022-02-15 03:16:22,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:16:22,340 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-15 03:16:22,341 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-02-15 03:16:22,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:16:22,350 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:16:22,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:16:22,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:16:22,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:16:22,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:16:22,520 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:16:22,520 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [769743921] [2022-02-15 03:16:22,520 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [769743921] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:16:22,520 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:16:22,521 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 03:16:22,521 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285303834] [2022-02-15 03:16:22,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:16:22,521 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 03:16:22,521 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:16:22,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 03:16:22,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 03:16:22,522 INFO L87 Difference]: Start difference. First operand 591 states and 877 transitions. Second operand has 5 states, 5 states have (on average 24.6) internal successors, (123), 4 states have internal predecessors, (123), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:16:24,871 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:16:26,893 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:16:28,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:16:28,130 INFO L93 Difference]: Finished difference Result 1237 states and 1847 transitions. [2022-02-15 03:16:28,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 03:16:28,130 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.6) internal successors, (123), 4 states have internal predecessors, (123), 1 states have call successors, (3), 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 [2022-02-15 03:16:28,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:16:28,134 INFO L225 Difference]: With dead ends: 1237 [2022-02-15 03:16:28,135 INFO L226 Difference]: Without dead ends: 674 [2022-02-15 03:16:28,137 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 03:16:28,138 INFO L933 BasicCegarLoop]: 266 mSDtfsCounter, 80 mSDsluCounter, 380 mSDsCounter, 0 mSdLazyCounter, 582 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 646 SdHoareTripleChecker+Invalid, 591 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 582 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-02-15 03:16:28,140 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [80 Valid, 646 Invalid, 591 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 582 Invalid, 2 Unknown, 0 Unchecked, 5.6s Time] [2022-02-15 03:16:28,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 674 states. [2022-02-15 03:16:28,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 674 to 616. [2022-02-15 03:16:28,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 616 states, 611 states have (on average 1.486088379705401) internal successors, (908), 611 states have internal predecessors, (908), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:16:28,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 616 states to 616 states and 912 transitions. [2022-02-15 03:16:28,178 INFO L78 Accepts]: Start accepts. Automaton has 616 states and 912 transitions. Word has length 153 [2022-02-15 03:16:28,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:16:28,178 INFO L470 AbstractCegarLoop]: Abstraction has 616 states and 912 transitions. [2022-02-15 03:16:28,178 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.6) internal successors, (123), 4 states have internal predecessors, (123), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:16:28,178 INFO L276 IsEmpty]: Start isEmpty. Operand 616 states and 912 transitions. [2022-02-15 03:16:28,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2022-02-15 03:16:28,180 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:16:28,180 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:16:28,180 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-02-15 03:16:28,180 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:16:28,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:16:28,182 INFO L85 PathProgramCache]: Analyzing trace with hash -483839402, now seen corresponding path program 1 times [2022-02-15 03:16:28,182 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:16:28,182 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [129782399] [2022-02-15 03:16:28,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:16:28,223 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-15 03:16:28,224 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-02-15 03:16:28,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:16:28,233 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:16:28,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:16:28,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:16:28,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:16:28,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:16:28,355 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:16:28,355 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [129782399] [2022-02-15 03:16:28,355 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [129782399] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:16:28,355 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:16:28,355 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 03:16:28,355 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637788971] [2022-02-15 03:16:28,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:16:28,355 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 03:16:28,355 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:16:28,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 03:16:28,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 03:16:28,356 INFO L87 Difference]: Start difference. First operand 616 states and 912 transitions. Second operand has 5 states, 5 states have (on average 25.0) internal successors, (125), 4 states have internal predecessors, (125), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:16:29,628 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:16:31,647 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:16:33,784 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:16:34,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:16:34,247 INFO L93 Difference]: Finished difference Result 1415 states and 2102 transitions. [2022-02-15 03:16:34,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 03:16:34,248 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.0) internal successors, (125), 4 states have internal predecessors, (125), 1 states have call successors, (3), 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 155 [2022-02-15 03:16:34,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:16:34,254 INFO L225 Difference]: With dead ends: 1415 [2022-02-15 03:16:34,254 INFO L226 Difference]: Without dead ends: 827 [2022-02-15 03:16:34,256 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 03:16:34,263 INFO L933 BasicCegarLoop]: 131 mSDtfsCounter, 118 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 54 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 372 SdHoareTripleChecker+Invalid, 519 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-02-15 03:16:34,263 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [118 Valid, 372 Invalid, 519 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 464 Invalid, 1 Unknown, 0 Unchecked, 5.8s Time] [2022-02-15 03:16:34,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 827 states. [2022-02-15 03:16:34,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 827 to 672. [2022-02-15 03:16:34,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 672 states, 667 states have (on average 1.4812593703148427) internal successors, (988), 667 states have internal predecessors, (988), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:16:34,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 672 states to 672 states and 992 transitions. [2022-02-15 03:16:34,309 INFO L78 Accepts]: Start accepts. Automaton has 672 states and 992 transitions. Word has length 155 [2022-02-15 03:16:34,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:16:34,309 INFO L470 AbstractCegarLoop]: Abstraction has 672 states and 992 transitions. [2022-02-15 03:16:34,310 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.0) internal successors, (125), 4 states have internal predecessors, (125), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:16:34,310 INFO L276 IsEmpty]: Start isEmpty. Operand 672 states and 992 transitions. [2022-02-15 03:16:34,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-02-15 03:16:34,312 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:16:34,312 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:16:34,312 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-02-15 03:16:34,312 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:16:34,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:16:34,312 INFO L85 PathProgramCache]: Analyzing trace with hash -157866099, now seen corresponding path program 1 times [2022-02-15 03:16:34,312 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:16:34,313 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2011676165] [2022-02-15 03:16:34,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:16:34,358 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-15 03:16:34,359 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-02-15 03:16:34,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:16:34,367 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:16:34,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:16:34,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:16:34,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:16:34,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:16:34,490 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:16:34,490 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2011676165] [2022-02-15 03:16:34,490 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [2011676165] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:16:34,490 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:16:34,490 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 03:16:34,490 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715010412] [2022-02-15 03:16:34,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:16:34,491 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 03:16:34,491 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:16:34,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 03:16:34,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 03:16:34,492 INFO L87 Difference]: Start difference. First operand 672 states and 992 transitions. Second operand has 5 states, 5 states have (on average 25.2) internal successors, (126), 4 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) [2022-02-15 03:16:37,455 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 [] [2022-02-15 03:16:38,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:16:38,860 INFO L93 Difference]: Finished difference Result 1447 states and 2132 transitions. [2022-02-15 03:16:38,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 03:16:38,861 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.2) internal successors, (126), 4 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 156 [2022-02-15 03:16:38,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:16:38,864 INFO L225 Difference]: With dead ends: 1447 [2022-02-15 03:16:38,865 INFO L226 Difference]: Without dead ends: 803 [2022-02-15 03:16:38,867 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 03:16:38,868 INFO L933 BasicCegarLoop]: 131 mSDtfsCounter, 117 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 372 SdHoareTripleChecker+Invalid, 520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-02-15 03:16:38,868 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [117 Valid, 372 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 464 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2022-02-15 03:16:38,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 803 states. [2022-02-15 03:16:38,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 803 to 672. [2022-02-15 03:16:38,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 672 states, 667 states have (on average 1.4752623688155921) internal successors, (984), 667 states have internal predecessors, (984), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:16:38,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 672 states to 672 states and 988 transitions. [2022-02-15 03:16:38,916 INFO L78 Accepts]: Start accepts. Automaton has 672 states and 988 transitions. Word has length 156 [2022-02-15 03:16:38,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:16:38,916 INFO L470 AbstractCegarLoop]: Abstraction has 672 states and 988 transitions. [2022-02-15 03:16:38,917 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.2) internal successors, (126), 4 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) [2022-02-15 03:16:38,917 INFO L276 IsEmpty]: Start isEmpty. Operand 672 states and 988 transitions. [2022-02-15 03:16:38,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2022-02-15 03:16:38,919 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:16:38,919 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:16:38,919 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-02-15 03:16:38,919 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:16:38,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:16:38,920 INFO L85 PathProgramCache]: Analyzing trace with hash -1690831120, now seen corresponding path program 1 times [2022-02-15 03:16:38,920 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:16:38,920 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [979872363] [2022-02-15 03:16:38,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:16:38,966 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-15 03:16:38,966 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-02-15 03:16:38,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:16:38,977 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:16:39,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:16:39,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:16:39,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:16:39,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:16:39,111 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:16:39,111 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [979872363] [2022-02-15 03:16:39,111 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [979872363] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:16:39,111 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:16:39,111 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 03:16:39,112 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891134880] [2022-02-15 03:16:39,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:16:39,112 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 03:16:39,112 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:16:39,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 03:16:39,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 03:16:39,113 INFO L87 Difference]: Start difference. First operand 672 states and 988 transitions. Second operand has 5 states, 5 states have (on average 25.4) internal successors, (127), 4 states have internal predecessors, (127), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:16:41,569 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:16:44,109 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:16:44,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:16:44,580 INFO L93 Difference]: Finished difference Result 1366 states and 2018 transitions. [2022-02-15 03:16:44,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 03:16:44,581 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.4) internal successors, (127), 4 states have internal predecessors, (127), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 157 [2022-02-15 03:16:44,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:16:44,583 INFO L225 Difference]: With dead ends: 1366 [2022-02-15 03:16:44,583 INFO L226 Difference]: Without dead ends: 722 [2022-02-15 03:16:44,585 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 03:16:44,585 INFO L933 BasicCegarLoop]: 259 mSDtfsCounter, 63 mSDsluCounter, 373 mSDsCounter, 0 mSdLazyCounter, 545 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 632 SdHoareTripleChecker+Invalid, 553 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 545 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-02-15 03:16:44,585 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [63 Valid, 632 Invalid, 553 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 545 Invalid, 1 Unknown, 0 Unchecked, 5.4s Time] [2022-02-15 03:16:44,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 722 states. [2022-02-15 03:16:44,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 722 to 677. [2022-02-15 03:16:44,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 677 states, 672 states have (on average 1.474702380952381) internal successors, (991), 672 states have internal predecessors, (991), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:16:44,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 677 states to 677 states and 995 transitions. [2022-02-15 03:16:44,626 INFO L78 Accepts]: Start accepts. Automaton has 677 states and 995 transitions. Word has length 157 [2022-02-15 03:16:44,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:16:44,626 INFO L470 AbstractCegarLoop]: Abstraction has 677 states and 995 transitions. [2022-02-15 03:16:44,627 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.4) internal successors, (127), 4 states have internal predecessors, (127), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:16:44,627 INFO L276 IsEmpty]: Start isEmpty. Operand 677 states and 995 transitions. [2022-02-15 03:16:44,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2022-02-15 03:16:44,629 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:16:44,629 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:16:44,629 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-02-15 03:16:44,630 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:16:44,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:16:44,630 INFO L85 PathProgramCache]: Analyzing trace with hash 708750791, now seen corresponding path program 1 times [2022-02-15 03:16:44,630 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:16:44,630 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [512065329] [2022-02-15 03:16:44,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:16:44,673 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-15 03:16:44,674 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-02-15 03:16:44,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:16:44,683 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:16:44,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:16:44,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:16:44,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:16:44,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:16:44,798 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:16:44,798 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [512065329] [2022-02-15 03:16:44,798 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [512065329] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:16:44,798 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:16:44,798 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 03:16:44,799 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770662514] [2022-02-15 03:16:44,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:16:44,799 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 03:16:44,799 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:16:44,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 03:16:44,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 03:16:44,800 INFO L87 Difference]: Start difference. First operand 677 states and 995 transitions. Second operand has 5 states, 5 states have (on average 25.6) internal successors, (128), 4 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:16:48,037 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:16:49,080 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:16:49,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:16:49,520 INFO L93 Difference]: Finished difference Result 1369 states and 2022 transitions. [2022-02-15 03:16:49,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 03:16:49,521 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.6) internal successors, (128), 4 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 158 [2022-02-15 03:16:49,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:16:49,524 INFO L225 Difference]: With dead ends: 1369 [2022-02-15 03:16:49,525 INFO L226 Difference]: Without dead ends: 720 [2022-02-15 03:16:49,526 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 03:16:49,529 INFO L933 BasicCegarLoop]: 257 mSDtfsCounter, 60 mSDsluCounter, 371 mSDsCounter, 0 mSdLazyCounter, 540 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 628 SdHoareTripleChecker+Invalid, 547 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 540 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-02-15 03:16:49,531 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [60 Valid, 628 Invalid, 547 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 540 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2022-02-15 03:16:49,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 720 states. [2022-02-15 03:16:49,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 720 to 678. [2022-02-15 03:16:49,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 678 states, 673 states have (on average 1.473997028231798) internal successors, (992), 673 states have internal predecessors, (992), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:16:49,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 678 states to 678 states and 996 transitions. [2022-02-15 03:16:49,571 INFO L78 Accepts]: Start accepts. Automaton has 678 states and 996 transitions. Word has length 158 [2022-02-15 03:16:49,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:16:49,571 INFO L470 AbstractCegarLoop]: Abstraction has 678 states and 996 transitions. [2022-02-15 03:16:49,571 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.6) internal successors, (128), 4 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:16:49,571 INFO L276 IsEmpty]: Start isEmpty. Operand 678 states and 996 transitions. [2022-02-15 03:16:49,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2022-02-15 03:16:49,573 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:16:49,573 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:16:49,573 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-02-15 03:16:49,574 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:16:49,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:16:49,574 INFO L85 PathProgramCache]: Analyzing trace with hash 104035683, now seen corresponding path program 1 times [2022-02-15 03:16:49,574 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:16:49,574 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [440218919] [2022-02-15 03:16:49,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:16:49,614 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-15 03:16:49,615 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-02-15 03:16:49,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:16:49,624 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:16:49,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:16:49,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:16:49,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:16:49,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:16:49,746 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:16:49,746 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [440218919] [2022-02-15 03:16:49,746 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [440218919] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:16:49,746 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:16:49,746 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 03:16:49,746 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271058741] [2022-02-15 03:16:49,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:16:49,747 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 03:16:49,747 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:16:49,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 03:16:49,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 03:16:49,747 INFO L87 Difference]: Start difference. First operand 678 states and 996 transitions. Second operand has 5 states, 5 states have (on average 25.6) internal successors, (128), 4 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:16:52,346 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 [] [2022-02-15 03:16:52,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:16:52,854 INFO L93 Difference]: Finished difference Result 1539 states and 2266 transitions. [2022-02-15 03:16:52,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 03:16:52,854 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.6) internal successors, (128), 4 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 158 [2022-02-15 03:16:52,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:16:52,858 INFO L225 Difference]: With dead ends: 1539 [2022-02-15 03:16:52,858 INFO L226 Difference]: Without dead ends: 889 [2022-02-15 03:16:52,859 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 03:16:52,860 INFO L933 BasicCegarLoop]: 139 mSDtfsCounter, 119 mSDsluCounter, 249 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 388 SdHoareTripleChecker+Invalid, 525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-02-15 03:16:52,860 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 388 Invalid, 525 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 473 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-02-15 03:16:52,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 889 states. [2022-02-15 03:16:52,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 889 to 730. [2022-02-15 03:16:52,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 730 states, 725 states have (on average 1.463448275862069) internal successors, (1061), 725 states have internal predecessors, (1061), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:16:52,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 730 states to 730 states and 1065 transitions. [2022-02-15 03:16:52,912 INFO L78 Accepts]: Start accepts. Automaton has 730 states and 1065 transitions. Word has length 158 [2022-02-15 03:16:52,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:16:52,913 INFO L470 AbstractCegarLoop]: Abstraction has 730 states and 1065 transitions. [2022-02-15 03:16:52,913 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.6) internal successors, (128), 4 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:16:52,913 INFO L276 IsEmpty]: Start isEmpty. Operand 730 states and 1065 transitions. [2022-02-15 03:16:52,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2022-02-15 03:16:52,915 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:16:52,915 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:16:52,915 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-02-15 03:16:52,915 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:16:52,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:16:52,915 INFO L85 PathProgramCache]: Analyzing trace with hash 1789186092, now seen corresponding path program 1 times [2022-02-15 03:16:52,916 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:16:52,916 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [579617743] [2022-02-15 03:16:52,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:16:52,964 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-15 03:16:52,964 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-02-15 03:16:52,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:16:52,973 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:16:53,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:16:53,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:16:53,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:16:53,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:16:53,126 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:16:53,126 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [579617743] [2022-02-15 03:16:53,126 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [579617743] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:16:53,126 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:16:53,126 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 03:16:53,126 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894244792] [2022-02-15 03:16:53,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:16:53,127 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 03:16:53,127 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:16:53,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 03:16:53,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 03:16:53,127 INFO L87 Difference]: Start difference. First operand 730 states and 1065 transitions. Second operand has 5 states, 5 states have (on average 25.8) internal successors, (129), 4 states have internal predecessors, (129), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:16:56,179 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:16:57,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:16:57,271 INFO L93 Difference]: Finished difference Result 1472 states and 2157 transitions. [2022-02-15 03:16:57,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 03:16:57,272 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.8) internal successors, (129), 4 states have internal predecessors, (129), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 159 [2022-02-15 03:16:57,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:16:57,278 INFO L225 Difference]: With dead ends: 1472 [2022-02-15 03:16:57,278 INFO L226 Difference]: Without dead ends: 770 [2022-02-15 03:16:57,285 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 03:16:57,286 INFO L933 BasicCegarLoop]: 255 mSDtfsCounter, 61 mSDsluCounter, 369 mSDsCounter, 0 mSdLazyCounter, 527 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 624 SdHoareTripleChecker+Invalid, 534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 527 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-02-15 03:16:57,286 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [61 Valid, 624 Invalid, 534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 527 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-02-15 03:16:57,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 770 states. [2022-02-15 03:16:57,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 770 to 730. [2022-02-15 03:16:57,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 730 states, 725 states have (on average 1.4620689655172414) internal successors, (1060), 725 states have internal predecessors, (1060), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:16:57,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 730 states to 730 states and 1064 transitions. [2022-02-15 03:16:57,337 INFO L78 Accepts]: Start accepts. Automaton has 730 states and 1064 transitions. Word has length 159 [2022-02-15 03:16:57,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:16:57,338 INFO L470 AbstractCegarLoop]: Abstraction has 730 states and 1064 transitions. [2022-02-15 03:16:57,338 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.8) internal successors, (129), 4 states have internal predecessors, (129), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:16:57,338 INFO L276 IsEmpty]: Start isEmpty. Operand 730 states and 1064 transitions. [2022-02-15 03:16:57,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2022-02-15 03:16:57,341 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:16:57,341 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:16:57,341 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-02-15 03:16:57,341 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:16:57,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:16:57,342 INFO L85 PathProgramCache]: Analyzing trace with hash -678377778, now seen corresponding path program 1 times [2022-02-15 03:16:57,342 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:16:57,342 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [859780784] [2022-02-15 03:16:57,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:16:57,378 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-15 03:16:57,378 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-02-15 03:16:57,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:16:57,387 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:16:57,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:16:57,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:16:57,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:16:57,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:16:57,536 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:16:57,536 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [859780784] [2022-02-15 03:16:57,536 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [859780784] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:16:57,536 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:16:57,536 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 03:16:57,536 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649954141] [2022-02-15 03:16:57,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:16:57,537 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 03:16:57,537 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:16:57,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 03:16:57,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 03:16:57,537 INFO L87 Difference]: Start difference. First operand 730 states and 1064 transitions. Second operand has 5 states, 5 states have (on average 25.8) internal successors, (129), 4 states have internal predecessors, (129), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:16:59,047 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:17:00,107 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:17:01,312 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:17:02,557 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:17:02,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:17:02,987 INFO L93 Difference]: Finished difference Result 1469 states and 2151 transitions. [2022-02-15 03:17:02,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 03:17:02,988 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.8) internal successors, (129), 4 states have internal predecessors, (129), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 159 [2022-02-15 03:17:02,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:17:02,990 INFO L225 Difference]: With dead ends: 1469 [2022-02-15 03:17:02,990 INFO L226 Difference]: Without dead ends: 767 [2022-02-15 03:17:02,991 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 03:17:02,991 INFO L933 BasicCegarLoop]: 253 mSDtfsCounter, 54 mSDsluCounter, 367 mSDsCounter, 0 mSdLazyCounter, 515 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 620 SdHoareTripleChecker+Invalid, 520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 515 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-02-15 03:17:02,991 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [54 Valid, 620 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 515 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2022-02-15 03:17:02,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 767 states. [2022-02-15 03:17:03,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 767 to 731. [2022-02-15 03:17:03,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 731 states, 726 states have (on average 1.4614325068870524) internal successors, (1061), 726 states have internal predecessors, (1061), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:17:03,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 731 states to 731 states and 1065 transitions. [2022-02-15 03:17:03,042 INFO L78 Accepts]: Start accepts. Automaton has 731 states and 1065 transitions. Word has length 159 [2022-02-15 03:17:03,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:17:03,042 INFO L470 AbstractCegarLoop]: Abstraction has 731 states and 1065 transitions. [2022-02-15 03:17:03,042 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.8) internal successors, (129), 4 states have internal predecessors, (129), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:17:03,042 INFO L276 IsEmpty]: Start isEmpty. Operand 731 states and 1065 transitions. [2022-02-15 03:17:03,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2022-02-15 03:17:03,044 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:17:03,044 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:17:03,044 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-02-15 03:17:03,044 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:17:03,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:17:03,045 INFO L85 PathProgramCache]: Analyzing trace with hash -2123457232, now seen corresponding path program 1 times [2022-02-15 03:17:03,045 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:17:03,045 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [62537375] [2022-02-15 03:17:03,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:17:03,085 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-15 03:17:03,085 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-02-15 03:17:03,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:17:03,095 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:17:03,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:17:03,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:17:03,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:17:03,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:17:03,272 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:17:03,272 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [62537375] [2022-02-15 03:17:03,272 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [62537375] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:17:03,273 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:17:03,273 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 03:17:03,273 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869569326] [2022-02-15 03:17:03,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:17:03,273 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 03:17:03,273 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:17:03,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 03:17:03,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 03:17:03,274 INFO L87 Difference]: Start difference. First operand 731 states and 1065 transitions. Second operand has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:17:04,355 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:17:07,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:17:07,242 INFO L93 Difference]: Finished difference Result 1645 states and 2402 transitions. [2022-02-15 03:17:07,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 03:17:07,243 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 1 states have call successors, (3), 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 161 [2022-02-15 03:17:07,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:17:07,246 INFO L225 Difference]: With dead ends: 1645 [2022-02-15 03:17:07,246 INFO L226 Difference]: Without dead ends: 942 [2022-02-15 03:17:07,247 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 03:17:07,248 INFO L933 BasicCegarLoop]: 131 mSDtfsCounter, 112 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 465 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 372 SdHoareTripleChecker+Invalid, 519 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 465 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-02-15 03:17:07,249 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [112 Valid, 372 Invalid, 519 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 465 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2022-02-15 03:17:07,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 942 states. [2022-02-15 03:17:07,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 942 to 797. [2022-02-15 03:17:07,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 797 states, 792 states have (on average 1.4583333333333333) internal successors, (1155), 792 states have internal predecessors, (1155), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:17:07,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 797 states to 797 states and 1159 transitions. [2022-02-15 03:17:07,307 INFO L78 Accepts]: Start accepts. Automaton has 797 states and 1159 transitions. Word has length 161 [2022-02-15 03:17:07,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:17:07,307 INFO L470 AbstractCegarLoop]: Abstraction has 797 states and 1159 transitions. [2022-02-15 03:17:07,307 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:17:07,307 INFO L276 IsEmpty]: Start isEmpty. Operand 797 states and 1159 transitions. [2022-02-15 03:17:07,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2022-02-15 03:17:07,309 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:17:07,309 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:17:07,309 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-02-15 03:17:07,309 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:17:07,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:17:07,310 INFO L85 PathProgramCache]: Analyzing trace with hash 2080970156, now seen corresponding path program 1 times [2022-02-15 03:17:07,310 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:17:07,310 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1183222195] [2022-02-15 03:17:07,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:17:07,385 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-15 03:17:07,385 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-02-15 03:17:07,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:17:07,394 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:17:07,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:17:07,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:17:07,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:17:07,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:17:07,509 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:17:07,509 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1183222195] [2022-02-15 03:17:07,510 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1183222195] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:17:07,510 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:17:07,510 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 03:17:07,510 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321794288] [2022-02-15 03:17:07,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:17:07,510 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 03:17:07,510 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:17:07,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 03:17:07,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 03:17:07,511 INFO L87 Difference]: Start difference. First operand 797 states and 1159 transitions. Second operand has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:17:10,295 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:17:11,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:17:11,352 INFO L93 Difference]: Finished difference Result 1697 states and 2466 transitions. [2022-02-15 03:17:11,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 03:17:11,353 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (3), 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 162 [2022-02-15 03:17:11,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:17:11,355 INFO L225 Difference]: With dead ends: 1697 [2022-02-15 03:17:11,356 INFO L226 Difference]: Without dead ends: 928 [2022-02-15 03:17:11,357 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 03:17:11,358 INFO L933 BasicCegarLoop]: 137 mSDtfsCounter, 111 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 470 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 470 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-02-15 03:17:11,358 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [111 Valid, 384 Invalid, 524 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 470 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2022-02-15 03:17:11,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 928 states. [2022-02-15 03:17:11,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 928 to 797. [2022-02-15 03:17:11,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 797 states, 792 states have (on average 1.4532828282828283) internal successors, (1151), 792 states have internal predecessors, (1151), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:17:11,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 797 states to 797 states and 1155 transitions. [2022-02-15 03:17:11,431 INFO L78 Accepts]: Start accepts. Automaton has 797 states and 1155 transitions. Word has length 162 [2022-02-15 03:17:11,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:17:11,431 INFO L470 AbstractCegarLoop]: Abstraction has 797 states and 1155 transitions. [2022-02-15 03:17:11,432 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:17:11,432 INFO L276 IsEmpty]: Start isEmpty. Operand 797 states and 1155 transitions. [2022-02-15 03:17:11,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2022-02-15 03:17:11,433 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:17:11,434 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:17:11,434 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-02-15 03:17:11,434 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:17:11,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:17:11,434 INFO L85 PathProgramCache]: Analyzing trace with hash -1568564931, now seen corresponding path program 1 times [2022-02-15 03:17:11,434 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:17:11,435 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1954797359] [2022-02-15 03:17:11,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:17:11,480 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-15 03:17:11,481 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-02-15 03:17:11,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:17:11,491 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:17:11,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:17:11,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:17:11,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:17:11,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:17:11,613 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:17:11,613 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1954797359] [2022-02-15 03:17:11,613 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1954797359] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:17:11,613 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:17:11,613 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 03:17:11,613 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365994930] [2022-02-15 03:17:11,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:17:11,614 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 03:17:11,614 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:17:11,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 03:17:11,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 03:17:11,614 INFO L87 Difference]: Start difference. First operand 797 states and 1155 transitions. Second operand has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:17:13,504 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:17:14,734 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:17:15,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:17:15,241 INFO L93 Difference]: Finished difference Result 1777 states and 2578 transitions. [2022-02-15 03:17:15,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 03:17:15,241 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (3), 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 162 [2022-02-15 03:17:15,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:17:15,244 INFO L225 Difference]: With dead ends: 1777 [2022-02-15 03:17:15,244 INFO L226 Difference]: Without dead ends: 1008 [2022-02-15 03:17:15,245 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 03:17:15,245 INFO L933 BasicCegarLoop]: 137 mSDtfsCounter, 109 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 472 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 472 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-02-15 03:17:15,246 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [109 Valid, 384 Invalid, 525 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 472 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-02-15 03:17:15,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1008 states. [2022-02-15 03:17:15,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1008 to 867. [2022-02-15 03:17:15,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 867 states, 862 states have (on average 1.448955916473318) internal successors, (1249), 862 states have internal predecessors, (1249), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:17:15,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 867 states to 867 states and 1253 transitions. [2022-02-15 03:17:15,311 INFO L78 Accepts]: Start accepts. Automaton has 867 states and 1253 transitions. Word has length 162 [2022-02-15 03:17:15,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:17:15,312 INFO L470 AbstractCegarLoop]: Abstraction has 867 states and 1253 transitions. [2022-02-15 03:17:15,312 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:17:15,312 INFO L276 IsEmpty]: Start isEmpty. Operand 867 states and 1253 transitions. [2022-02-15 03:17:15,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2022-02-15 03:17:15,313 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:17:15,314 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:17:15,314 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-02-15 03:17:15,314 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:17:15,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:17:15,314 INFO L85 PathProgramCache]: Analyzing trace with hash -1703451743, now seen corresponding path program 1 times [2022-02-15 03:17:15,314 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:17:15,314 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [647763368] [2022-02-15 03:17:15,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:17:15,354 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-15 03:17:15,355 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-02-15 03:17:15,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:17:15,364 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:17:15,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:17:15,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:17:15,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:17:15,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:17:15,482 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:17:15,482 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [647763368] [2022-02-15 03:17:15,482 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [647763368] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:17:15,482 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:17:15,482 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 03:17:15,482 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166307642] [2022-02-15 03:17:15,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:17:15,482 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 03:17:15,482 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:17:15,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 03:17:15,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 03:17:15,483 INFO L87 Difference]: Start difference. First operand 867 states and 1253 transitions. Second operand has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:17:17,632 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:17:19,650 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:17:20,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:17:20,122 INFO L93 Difference]: Finished difference Result 1736 states and 2517 transitions. [2022-02-15 03:17:20,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 03:17:20,122 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 163 [2022-02-15 03:17:20,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:17:20,124 INFO L225 Difference]: With dead ends: 1736 [2022-02-15 03:17:20,124 INFO L226 Difference]: Without dead ends: 897 [2022-02-15 03:17:20,126 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 03:17:20,126 INFO L933 BasicCegarLoop]: 245 mSDtfsCounter, 42 mSDsluCounter, 359 mSDsCounter, 0 mSdLazyCounter, 494 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 604 SdHoareTripleChecker+Invalid, 500 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 494 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-02-15 03:17:20,126 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [42 Valid, 604 Invalid, 500 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 494 Invalid, 1 Unknown, 0 Unchecked, 4.6s Time] [2022-02-15 03:17:20,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 897 states. [2022-02-15 03:17:20,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 897 to 871. [2022-02-15 03:17:20,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 871 states, 866 states have (on average 1.4468822170900693) internal successors, (1253), 866 states have internal predecessors, (1253), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:17:20,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 871 states to 871 states and 1257 transitions. [2022-02-15 03:17:20,181 INFO L78 Accepts]: Start accepts. Automaton has 871 states and 1257 transitions. Word has length 163 [2022-02-15 03:17:20,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:17:20,181 INFO L470 AbstractCegarLoop]: Abstraction has 871 states and 1257 transitions. [2022-02-15 03:17:20,181 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:17:20,181 INFO L276 IsEmpty]: Start isEmpty. Operand 871 states and 1257 transitions. [2022-02-15 03:17:20,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2022-02-15 03:17:20,183 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:17:20,183 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:17:20,183 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-02-15 03:17:20,184 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:17:20,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:17:20,184 INFO L85 PathProgramCache]: Analyzing trace with hash 6795896, now seen corresponding path program 1 times [2022-02-15 03:17:20,184 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:17:20,184 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [361201172] [2022-02-15 03:17:20,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:17:20,228 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-15 03:17:20,228 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-02-15 03:17:20,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:17:20,238 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:17:20,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:17:20,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:17:20,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:17:20,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:17:20,378 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:17:20,378 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [361201172] [2022-02-15 03:17:20,378 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [361201172] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:17:20,378 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:17:20,378 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 03:17:20,378 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669328754] [2022-02-15 03:17:20,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:17:20,379 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 03:17:20,379 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:17:20,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 03:17:20,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 03:17:20,379 INFO L87 Difference]: Start difference. First operand 871 states and 1257 transitions. Second operand has 5 states, 5 states have (on average 26.8) internal successors, (134), 4 states have internal predecessors, (134), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:17:22,048 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:17:24,032 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:17:26,053 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:17:26,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:17:26,568 INFO L93 Difference]: Finished difference Result 1925 states and 2780 transitions. [2022-02-15 03:17:26,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 03:17:26,569 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.8) internal successors, (134), 4 states have internal predecessors, (134), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 164 [2022-02-15 03:17:26,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:17:26,572 INFO L225 Difference]: With dead ends: 1925 [2022-02-15 03:17:26,572 INFO L226 Difference]: Without dead ends: 1082 [2022-02-15 03:17:26,573 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 03:17:26,574 INFO L933 BasicCegarLoop]: 138 mSDtfsCounter, 107 mSDsluCounter, 248 mSDsCounter, 0 mSdLazyCounter, 471 mSolverCounterSat, 52 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 386 SdHoareTripleChecker+Invalid, 524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 471 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-02-15 03:17:26,574 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [107 Valid, 386 Invalid, 524 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 471 Invalid, 1 Unknown, 0 Unchecked, 6.1s Time] [2022-02-15 03:17:26,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1082 states. [2022-02-15 03:17:26,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1082 to 945. [2022-02-15 03:17:26,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 945 states, 940 states have (on average 1.4436170212765957) internal successors, (1357), 940 states have internal predecessors, (1357), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:17:26,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 945 states to 945 states and 1361 transitions. [2022-02-15 03:17:26,662 INFO L78 Accepts]: Start accepts. Automaton has 945 states and 1361 transitions. Word has length 164 [2022-02-15 03:17:26,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:17:26,663 INFO L470 AbstractCegarLoop]: Abstraction has 945 states and 1361 transitions. [2022-02-15 03:17:26,663 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.8) internal successors, (134), 4 states have internal predecessors, (134), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:17:26,663 INFO L276 IsEmpty]: Start isEmpty. Operand 945 states and 1361 transitions. [2022-02-15 03:17:26,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-02-15 03:17:26,664 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:17:26,665 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:17:26,665 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-02-15 03:17:26,665 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:17:26,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:17:26,665 INFO L85 PathProgramCache]: Analyzing trace with hash 1901438780, now seen corresponding path program 1 times [2022-02-15 03:17:26,666 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:17:26,666 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1555613770] [2022-02-15 03:17:26,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:17:26,710 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-15 03:17:26,710 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-02-15 03:17:26,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:17:26,723 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:17:26,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:17:26,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:17:26,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:17:26,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:17:26,850 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:17:26,850 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1555613770] [2022-02-15 03:17:26,850 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1555613770] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:17:26,850 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:17:26,850 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 03:17:26,850 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086249674] [2022-02-15 03:17:26,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:17:26,851 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 03:17:26,851 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:17:26,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 03:17:26,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 03:17:26,851 INFO L87 Difference]: Start difference. First operand 945 states and 1361 transitions. Second operand has 5 states, 5 states have (on average 27.0) internal successors, (135), 4 states have internal predecessors, (135), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:17:30,160 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:17:31,691 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:17:32,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:17:32,168 INFO L93 Difference]: Finished difference Result 1886 states and 2725 transitions. [2022-02-15 03:17:32,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 03:17:32,169 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.0) internal successors, (135), 4 states have internal predecessors, (135), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 165 [2022-02-15 03:17:32,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:17:32,172 INFO L225 Difference]: With dead ends: 1886 [2022-02-15 03:17:32,172 INFO L226 Difference]: Without dead ends: 969 [2022-02-15 03:17:32,173 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 03:17:32,174 INFO L933 BasicCegarLoop]: 242 mSDtfsCounter, 37 mSDsluCounter, 356 mSDsCounter, 0 mSdLazyCounter, 487 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 598 SdHoareTripleChecker+Invalid, 493 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 487 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-02-15 03:17:32,174 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 598 Invalid, 493 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 487 Invalid, 1 Unknown, 0 Unchecked, 5.2s Time] [2022-02-15 03:17:32,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 969 states. [2022-02-15 03:17:32,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 969 to 947. [2022-02-15 03:17:32,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 947 states, 942 states have (on average 1.4426751592356688) internal successors, (1359), 942 states have internal predecessors, (1359), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:17:32,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 947 states to 947 states and 1363 transitions. [2022-02-15 03:17:32,227 INFO L78 Accepts]: Start accepts. Automaton has 947 states and 1363 transitions. Word has length 165 [2022-02-15 03:17:32,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:17:32,228 INFO L470 AbstractCegarLoop]: Abstraction has 947 states and 1363 transitions. [2022-02-15 03:17:32,228 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.0) internal successors, (135), 4 states have internal predecessors, (135), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:17:32,228 INFO L276 IsEmpty]: Start isEmpty. Operand 947 states and 1363 transitions. [2022-02-15 03:17:32,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-02-15 03:17:32,229 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:17:32,229 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:17:32,229 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-02-15 03:17:32,230 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:17:32,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:17:32,230 INFO L85 PathProgramCache]: Analyzing trace with hash -1967200105, now seen corresponding path program 1 times [2022-02-15 03:17:32,230 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:17:32,230 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [546147261] [2022-02-15 03:17:32,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:17:32,283 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-15 03:17:32,283 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-02-15 03:17:32,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:17:32,293 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:17:32,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:17:32,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:17:32,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:17:32,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:17:32,402 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:17:32,402 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [546147261] [2022-02-15 03:17:32,402 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [546147261] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:17:32,402 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:17:32,402 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-15 03:17:32,402 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866747119] [2022-02-15 03:17:32,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:17:32,402 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-15 03:17:32,402 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:17:32,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-15 03:17:32,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-15 03:17:32,403 INFO L87 Difference]: Start difference. First operand 947 states and 1363 transitions. Second operand has 4 states, 4 states have (on average 27.0) internal successors, (108), 3 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:17:34,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:17:34,016 INFO L93 Difference]: Finished difference Result 2326 states and 3364 transitions. [2022-02-15 03:17:34,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-15 03:17:34,017 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 3 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 173 [2022-02-15 03:17:34,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:17:34,021 INFO L225 Difference]: With dead ends: 2326 [2022-02-15 03:17:34,021 INFO L226 Difference]: Without dead ends: 1407 [2022-02-15 03:17:34,023 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-15 03:17:34,024 INFO L933 BasicCegarLoop]: 384 mSDtfsCounter, 141 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 427 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 578 SdHoareTripleChecker+Invalid, 437 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 427 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-02-15 03:17:34,025 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [141 Valid, 578 Invalid, 437 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 427 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-02-15 03:17:34,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1407 states. [2022-02-15 03:17:34,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1407 to 1407. [2022-02-15 03:17:34,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1407 states, 1402 states have (on average 1.4407988587731813) internal successors, (2020), 1402 states have internal predecessors, (2020), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:17:34,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1407 states to 1407 states and 2024 transitions. [2022-02-15 03:17:34,129 INFO L78 Accepts]: Start accepts. Automaton has 1407 states and 2024 transitions. Word has length 173 [2022-02-15 03:17:34,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:17:34,130 INFO L470 AbstractCegarLoop]: Abstraction has 1407 states and 2024 transitions. [2022-02-15 03:17:34,130 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 3 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:17:34,130 INFO L276 IsEmpty]: Start isEmpty. Operand 1407 states and 2024 transitions. [2022-02-15 03:17:34,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2022-02-15 03:17:34,132 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:17:34,132 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:17:34,132 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-02-15 03:17:34,133 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:17:34,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:17:34,133 INFO L85 PathProgramCache]: Analyzing trace with hash 1845860779, now seen corresponding path program 1 times [2022-02-15 03:17:34,133 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:17:34,133 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1344843216] [2022-02-15 03:17:34,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:17:41,806 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-15 03:17:41,807 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-02-15 03:17:41,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:17:41,819 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:17:41,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:17:41,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:17:41,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:17:41,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:17:41,948 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:17:41,950 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1344843216] [2022-02-15 03:17:41,950 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1344843216] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:17:41,950 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:17:41,950 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 03:17:41,950 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478015675] [2022-02-15 03:17:41,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:17:41,951 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 03:17:41,951 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:17:41,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 03:17:41,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 03:17:41,952 INFO L87 Difference]: Start difference. First operand 1407 states and 2024 transitions. Second operand has 5 states, 5 states have (on average 25.2) internal successors, (126), 4 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) [2022-02-15 03:17:43,611 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 [] [2022-02-15 03:17:45,618 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 [] [2022-02-15 03:17:46,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:17:46,147 INFO L93 Difference]: Finished difference Result 2827 states and 4071 transitions. [2022-02-15 03:17:46,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 03:17:46,147 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.2) internal successors, (126), 4 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 174 [2022-02-15 03:17:46,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:17:46,152 INFO L225 Difference]: With dead ends: 2827 [2022-02-15 03:17:46,152 INFO L226 Difference]: Without dead ends: 1448 [2022-02-15 03:17:46,154 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 03:17:46,154 INFO L933 BasicCegarLoop]: 241 mSDtfsCounter, 52 mSDsluCounter, 355 mSDsCounter, 0 mSdLazyCounter, 487 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 596 SdHoareTripleChecker+Invalid, 492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 487 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-02-15 03:17:46,155 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [52 Valid, 596 Invalid, 492 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 487 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-02-15 03:17:46,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1448 states. [2022-02-15 03:17:46,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1448 to 1407. [2022-02-15 03:17:46,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1407 states, 1402 states have (on average 1.4393723252496433) internal successors, (2018), 1402 states have internal predecessors, (2018), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:17:46,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1407 states to 1407 states and 2022 transitions. [2022-02-15 03:17:46,261 INFO L78 Accepts]: Start accepts. Automaton has 1407 states and 2022 transitions. Word has length 174 [2022-02-15 03:17:46,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:17:46,261 INFO L470 AbstractCegarLoop]: Abstraction has 1407 states and 2022 transitions. [2022-02-15 03:17:46,261 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.2) internal successors, (126), 4 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) [2022-02-15 03:17:46,261 INFO L276 IsEmpty]: Start isEmpty. Operand 1407 states and 2022 transitions. [2022-02-15 03:17:46,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2022-02-15 03:17:46,263 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:17:46,264 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:17:46,264 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-02-15 03:17:46,264 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:17:46,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:17:46,264 INFO L85 PathProgramCache]: Analyzing trace with hash -1843703720, now seen corresponding path program 1 times [2022-02-15 03:17:46,264 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:17:46,264 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1039020659] [2022-02-15 03:17:46,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:17:46,324 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-15 03:17:46,324 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-02-15 03:17:46,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:17:46,335 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:17:46,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:17:46,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:17:46,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:17:46,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:17:46,469 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:17:46,469 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1039020659] [2022-02-15 03:17:46,469 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1039020659] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:17:46,469 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:17:46,469 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-15 03:17:46,469 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615147204] [2022-02-15 03:17:46,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:17:46,469 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-15 03:17:46,469 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:17:46,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-15 03:17:46,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-15 03:17:46,470 INFO L87 Difference]: Start difference. First operand 1407 states and 2022 transitions. Second operand has 4 states, 4 states have (on average 36.0) internal successors, (144), 3 states have internal predecessors, (144), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:17:48,349 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 [] [2022-02-15 03:17:50,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:17:50,303 INFO L93 Difference]: Finished difference Result 3247 states and 4682 transitions. [2022-02-15 03:17:50,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-15 03:17:50,304 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 36.0) internal successors, (144), 3 states have internal predecessors, (144), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 174 [2022-02-15 03:17:50,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:17:50,311 INFO L225 Difference]: With dead ends: 3247 [2022-02-15 03:17:50,311 INFO L226 Difference]: Without dead ends: 1868 [2022-02-15 03:17:50,313 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-15 03:17:50,313 INFO L933 BasicCegarLoop]: 379 mSDtfsCounter, 138 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 422 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 573 SdHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 422 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-02-15 03:17:50,314 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [138 Valid, 573 Invalid, 432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 422 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-02-15 03:17:50,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1868 states. [2022-02-15 03:17:50,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1868 to 1868. [2022-02-15 03:17:50,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1868 states, 1863 states have (on average 1.4380032206119162) internal successors, (2679), 1863 states have internal predecessors, (2679), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:17:50,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1868 states to 1868 states and 2683 transitions. [2022-02-15 03:17:50,436 INFO L78 Accepts]: Start accepts. Automaton has 1868 states and 2683 transitions. Word has length 174 [2022-02-15 03:17:50,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:17:50,436 INFO L470 AbstractCegarLoop]: Abstraction has 1868 states and 2683 transitions. [2022-02-15 03:17:50,436 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.0) internal successors, (144), 3 states have internal predecessors, (144), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:17:50,437 INFO L276 IsEmpty]: Start isEmpty. Operand 1868 states and 2683 transitions. [2022-02-15 03:17:50,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2022-02-15 03:17:50,439 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:17:50,439 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:17:50,439 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-02-15 03:17:50,440 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:17:50,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:17:50,440 INFO L85 PathProgramCache]: Analyzing trace with hash 1318174582, now seen corresponding path program 1 times [2022-02-15 03:17:50,440 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:17:50,440 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [642530408] [2022-02-15 03:17:50,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:17:50,547 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-15 03:17:50,548 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-02-15 03:17:50,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:17:50,558 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:17:50,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:17:50,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:17:50,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:17:50,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:17:50,685 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:17:50,685 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [642530408] [2022-02-15 03:17:50,685 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [642530408] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:17:50,685 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:17:50,685 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-15 03:17:50,685 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864876950] [2022-02-15 03:17:50,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:17:50,686 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-15 03:17:50,686 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:17:50,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-15 03:17:50,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-15 03:17:50,686 INFO L87 Difference]: Start difference. First operand 1868 states and 2683 transitions. Second operand has 4 states, 4 states have (on average 28.5) internal successors, (114), 3 states have internal predecessors, (114), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:17:53,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:17:53,117 INFO L93 Difference]: Finished difference Result 4174 states and 6012 transitions. [2022-02-15 03:17:53,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-15 03:17:53,117 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.5) internal successors, (114), 3 states have internal predecessors, (114), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 212 [2022-02-15 03:17:53,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:17:53,123 INFO L225 Difference]: With dead ends: 4174 [2022-02-15 03:17:53,124 INFO L226 Difference]: Without dead ends: 2334 [2022-02-15 03:17:53,128 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-15 03:17:53,129 INFO L933 BasicCegarLoop]: 197 mSDtfsCounter, 155 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-02-15 03:17:53,129 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [155 Valid, 382 Invalid, 266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-02-15 03:17:53,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2334 states. [2022-02-15 03:17:53,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2334 to 2334. [2022-02-15 03:17:53,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2334 states, 2329 states have (on average 1.4392443108630313) internal successors, (3352), 2329 states have internal predecessors, (3352), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:17:53,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2334 states to 2334 states and 3356 transitions. [2022-02-15 03:17:53,362 INFO L78 Accepts]: Start accepts. Automaton has 2334 states and 3356 transitions. Word has length 212 [2022-02-15 03:17:53,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:17:53,362 INFO L470 AbstractCegarLoop]: Abstraction has 2334 states and 3356 transitions. [2022-02-15 03:17:53,362 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.5) internal successors, (114), 3 states have internal predecessors, (114), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:17:53,362 INFO L276 IsEmpty]: Start isEmpty. Operand 2334 states and 3356 transitions. [2022-02-15 03:17:53,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2022-02-15 03:17:53,367 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:17:53,367 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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] [2022-02-15 03:17:53,367 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-02-15 03:17:53,367 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:17:53,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:17:53,368 INFO L85 PathProgramCache]: Analyzing trace with hash -1775818222, now seen corresponding path program 1 times [2022-02-15 03:17:53,368 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:17:53,368 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [625986055] [2022-02-15 03:17:53,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:18:19,808 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-15 03:18:19,808 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-02-15 03:18:19,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:18:19,817 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:18:19,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:18:19,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:18:19,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:18:19,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:18:19,998 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:18:19,998 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [625986055] [2022-02-15 03:18:19,999 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [625986055] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:18:19,999 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:18:19,999 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 03:18:19,999 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493304732] [2022-02-15 03:18:19,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:18:19,999 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 03:18:19,999 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:18:20,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 03:18:20,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 03:18:20,000 INFO L87 Difference]: Start difference. First operand 2334 states and 3356 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) [2022-02-15 03:18:23,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:18:23,025 INFO L93 Difference]: Finished difference Result 5026 states and 7206 transitions. [2022-02-15 03:18:23,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 03:18:23,026 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 [2022-02-15 03:18:23,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:18:23,031 INFO L225 Difference]: With dead ends: 5026 [2022-02-15 03:18:23,031 INFO L226 Difference]: Without dead ends: 2720 [2022-02-15 03:18:23,034 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 03:18:23,034 INFO L933 BasicCegarLoop]: 266 mSDtfsCounter, 59 mSDsluCounter, 381 mSDsCounter, 0 mSdLazyCounter, 564 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 647 SdHoareTripleChecker+Invalid, 572 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 564 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-02-15 03:18:23,034 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [59 Valid, 647 Invalid, 572 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 564 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-02-15 03:18:23,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2720 states. [2022-02-15 03:18:23,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2720 to 2539. [2022-02-15 03:18:23,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2539 states, 2534 states have (on average 1.4392265193370166) internal successors, (3647), 2534 states have internal predecessors, (3647), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:18:23,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2539 states to 2539 states and 3651 transitions. [2022-02-15 03:18:23,217 INFO L78 Accepts]: Start accepts. Automaton has 2539 states and 3651 transitions. Word has length 298 [2022-02-15 03:18:23,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:18:23,217 INFO L470 AbstractCegarLoop]: Abstraction has 2539 states and 3651 transitions. [2022-02-15 03:18:23,218 INFO L471 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) [2022-02-15 03:18:23,218 INFO L276 IsEmpty]: Start isEmpty. Operand 2539 states and 3651 transitions. [2022-02-15 03:18:23,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2022-02-15 03:18:23,221 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:18:23,221 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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] [2022-02-15 03:18:23,221 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-02-15 03:18:23,222 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:18:23,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:18:23,222 INFO L85 PathProgramCache]: Analyzing trace with hash 2084643476, now seen corresponding path program 1 times [2022-02-15 03:18:23,222 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:18:23,222 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1659051577] [2022-02-15 03:18:23,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:18:44,921 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-15 03:18:44,922 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-02-15 03:18:44,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:18:44,931 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:18:45,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:18:45,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:18:45,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:18:45,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:18:45,132 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:18:45,132 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1659051577] [2022-02-15 03:18:45,132 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1659051577] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:18:45,132 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:18:45,132 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-15 03:18:45,132 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342547512] [2022-02-15 03:18:45,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:18:45,133 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-15 03:18:45,133 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:18:45,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-15 03:18:45,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-15 03:18:45,133 INFO L87 Difference]: Start difference. First operand 2539 states and 3651 transitions. Second operand has 4 states, 4 states have (on average 30.25) internal successors, (121), 3 states have internal predecessors, (121), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:18:47,440 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:18:48,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:18:48,148 INFO L93 Difference]: Finished difference Result 5552 states and 8000 transitions. [2022-02-15 03:18:48,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-15 03:18:48,149 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 3 states have internal predecessors, (121), 1 states have call successors, (3), 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 [2022-02-15 03:18:48,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:18:48,157 INFO L225 Difference]: With dead ends: 5552 [2022-02-15 03:18:48,157 INFO L226 Difference]: Without dead ends: 3041 [2022-02-15 03:18:48,162 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-15 03:18:48,163 INFO L933 BasicCegarLoop]: 384 mSDtfsCounter, 141 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 429 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 578 SdHoareTripleChecker+Invalid, 440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 429 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-02-15 03:18:48,163 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [141 Valid, 578 Invalid, 440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 429 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-02-15 03:18:48,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3041 states. [2022-02-15 03:18:48,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3041 to 3041. [2022-02-15 03:18:48,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3041 states, 3036 states have (on average 1.4384057971014492) internal successors, (4367), 3036 states have internal predecessors, (4367), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:18:48,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3041 states to 3041 states and 4371 transitions. [2022-02-15 03:18:48,365 INFO L78 Accepts]: Start accepts. Automaton has 3041 states and 4371 transitions. Word has length 298 [2022-02-15 03:18:48,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:18:48,366 INFO L470 AbstractCegarLoop]: Abstraction has 3041 states and 4371 transitions. [2022-02-15 03:18:48,366 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 3 states have internal predecessors, (121), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:18:48,366 INFO L276 IsEmpty]: Start isEmpty. Operand 3041 states and 4371 transitions. [2022-02-15 03:18:48,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 300 [2022-02-15 03:18:48,369 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:18:48,370 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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] [2022-02-15 03:18:48,370 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-02-15 03:18:48,370 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:18:48,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:18:48,370 INFO L85 PathProgramCache]: Analyzing trace with hash 1260879808, now seen corresponding path program 1 times [2022-02-15 03:18:48,370 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:18:48,370 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1942286239] [2022-02-15 03:18:48,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:19:09,950 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-15 03:19:09,950 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-02-15 03:19:09,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:19:09,960 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:19:10,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:19:10,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:19:10,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:19:10,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:19:10,147 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:19:10,147 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1942286239] [2022-02-15 03:19:10,147 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1942286239] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:19:10,148 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:19:10,148 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-15 03:19:10,148 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558097990] [2022-02-15 03:19:10,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:19:10,148 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-15 03:19:10,148 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:19:10,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-15 03:19:10,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-15 03:19:10,149 INFO L87 Difference]: Start difference. First operand 3041 states and 4371 transitions. Second operand has 4 states, 4 states have (on average 40.75) internal successors, (163), 3 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) [2022-02-15 03:19:12,889 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:19:14,643 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 [] [2022-02-15 03:19:15,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:19:15,325 INFO L93 Difference]: Finished difference Result 6557 states and 9441 transitions. [2022-02-15 03:19:15,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-15 03:19:15,326 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.75) internal successors, (163), 3 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 299 [2022-02-15 03:19:15,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:19:15,332 INFO L225 Difference]: With dead ends: 6557 [2022-02-15 03:19:15,332 INFO L226 Difference]: Without dead ends: 3544 [2022-02-15 03:19:15,337 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-15 03:19:15,338 INFO L933 BasicCegarLoop]: 384 mSDtfsCounter, 138 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 429 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 578 SdHoareTripleChecker+Invalid, 440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 429 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-02-15 03:19:15,338 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [138 Valid, 578 Invalid, 440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 429 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2022-02-15 03:19:15,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3544 states. [2022-02-15 03:19:15,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3544 to 3544. [2022-02-15 03:19:15,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3544 states, 3539 states have (on average 1.4376942639163606) internal successors, (5088), 3539 states have internal predecessors, (5088), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:19:15,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3544 states to 3544 states and 5092 transitions. [2022-02-15 03:19:15,621 INFO L78 Accepts]: Start accepts. Automaton has 3544 states and 5092 transitions. Word has length 299 [2022-02-15 03:19:15,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:19:15,622 INFO L470 AbstractCegarLoop]: Abstraction has 3544 states and 5092 transitions. [2022-02-15 03:19:15,622 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.75) internal successors, (163), 3 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) [2022-02-15 03:19:15,622 INFO L276 IsEmpty]: Start isEmpty. Operand 3544 states and 5092 transitions. [2022-02-15 03:19:15,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 339 [2022-02-15 03:19:15,627 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:19:15,628 INFO L514 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, 7, 7, 7, 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] [2022-02-15 03:19:15,628 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-02-15 03:19:15,628 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:19:15,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:19:15,628 INFO L85 PathProgramCache]: Analyzing trace with hash 1134872437, now seen corresponding path program 1 times [2022-02-15 03:19:15,628 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:19:15,628 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1589472582] [2022-02-15 03:19:15,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:19:39,583 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-15 03:19:39,584 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-02-15 03:19:39,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:19:39,593 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:19:39,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:19:39,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:19:39,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:19:39,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:19:39,787 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:19:39,787 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1589472582] [2022-02-15 03:19:39,787 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1589472582] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:19:39,787 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:19:39,787 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-15 03:19:39,787 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896756433] [2022-02-15 03:19:39,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:19:39,788 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-15 03:19:39,788 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:19:39,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-15 03:19:39,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-15 03:19:39,789 INFO L87 Difference]: Start difference. First operand 3544 states and 5092 transitions. Second operand has 4 states, 4 states have (on average 30.75) internal successors, (123), 3 states have internal predecessors, (123), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:19:41,611 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:19:43,458 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:19:44,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:19:44,120 INFO L93 Difference]: Finished difference Result 7567 states and 10889 transitions. [2022-02-15 03:19:44,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-15 03:19:44,120 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.75) internal successors, (123), 3 states have internal predecessors, (123), 1 states have call successors, (3), 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 [2022-02-15 03:19:44,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:19:44,130 INFO L225 Difference]: With dead ends: 7567 [2022-02-15 03:19:44,130 INFO L226 Difference]: Without dead ends: 4051 [2022-02-15 03:19:44,143 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-15 03:19:44,144 INFO L933 BasicCegarLoop]: 194 mSDtfsCounter, 155 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 379 SdHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-02-15 03:19:44,145 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [155 Valid, 379 Invalid, 269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-02-15 03:19:44,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4051 states. [2022-02-15 03:19:44,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4051 to 4051. [2022-02-15 03:19:44,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4051 states, 4046 states have (on average 1.4391992090954029) internal successors, (5823), 4046 states have internal predecessors, (5823), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:19:44,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4051 states to 4051 states and 5827 transitions. [2022-02-15 03:19:44,608 INFO L78 Accepts]: Start accepts. Automaton has 4051 states and 5827 transitions. Word has length 338 [2022-02-15 03:19:44,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:19:44,609 INFO L470 AbstractCegarLoop]: Abstraction has 4051 states and 5827 transitions. [2022-02-15 03:19:44,609 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.75) internal successors, (123), 3 states have internal predecessors, (123), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:19:44,609 INFO L276 IsEmpty]: Start isEmpty. Operand 4051 states and 5827 transitions. [2022-02-15 03:19:44,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 427 [2022-02-15 03:19:44,617 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:19:44,617 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:19:44,617 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-02-15 03:19:44,617 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:19:44,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:19:44,618 INFO L85 PathProgramCache]: Analyzing trace with hash -1799065481, now seen corresponding path program 1 times [2022-02-15 03:19:44,618 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:19:44,618 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [632536509] [2022-02-15 03:19:44,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:20:19,160 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-15 03:20:19,161 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-02-15 03:20:19,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:20:19,173 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:20:19,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:20:19,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:20:19,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:20:19,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:20:19,619 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:20:19,620 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [632536509] [2022-02-15 03:20:19,620 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [632536509] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:20:19,620 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:20:19,620 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-02-15 03:20:19,620 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77577376] [2022-02-15 03:20:19,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:20:19,620 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-02-15 03:20:19,620 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:20:19,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-02-15 03:20:19,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-02-15 03:20:19,621 INFO L87 Difference]: Start difference. First operand 4051 states and 5827 transitions. Second operand has 8 states, 8 states have (on average 21.5) internal successors, (172), 7 states have internal predecessors, (172), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:20:22,593 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:20:24,123 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:20:26,146 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:20:28,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:20:28,265 INFO L93 Difference]: Finished difference Result 12060 states and 17427 transitions. [2022-02-15 03:20:28,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-15 03:20:28,266 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 21.5) internal successors, (172), 7 states have internal predecessors, (172), 1 states have call successors, (3), 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 426 [2022-02-15 03:20:28,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:20:28,283 INFO L225 Difference]: With dead ends: 12060 [2022-02-15 03:20:28,284 INFO L226 Difference]: Without dead ends: 8037 [2022-02-15 03:20:28,294 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2022-02-15 03:20:28,295 INFO L933 BasicCegarLoop]: 331 mSDtfsCounter, 270 mSDsluCounter, 855 mSDsCounter, 0 mSdLazyCounter, 1275 mSolverCounterSat, 69 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 270 SdHoareTripleChecker+Valid, 1186 SdHoareTripleChecker+Invalid, 1345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 1275 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2022-02-15 03:20:28,295 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [270 Valid, 1186 Invalid, 1345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 1275 Invalid, 1 Unknown, 0 Unchecked, 7.8s Time] [2022-02-15 03:20:28,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8037 states. [2022-02-15 03:20:29,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8037 to 7794. [2022-02-15 03:20:29,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7794 states, 7789 states have (on average 1.453074849146232) internal successors, (11318), 7789 states have internal predecessors, (11318), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:20:29,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7794 states to 7794 states and 11322 transitions. [2022-02-15 03:20:29,135 INFO L78 Accepts]: Start accepts. Automaton has 7794 states and 11322 transitions. Word has length 426 [2022-02-15 03:20:29,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:20:29,136 INFO L470 AbstractCegarLoop]: Abstraction has 7794 states and 11322 transitions. [2022-02-15 03:20:29,136 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 21.5) internal successors, (172), 7 states have internal predecessors, (172), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:20:29,136 INFO L276 IsEmpty]: Start isEmpty. Operand 7794 states and 11322 transitions. [2022-02-15 03:20:29,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 427 [2022-02-15 03:20:29,174 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:20:29,175 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 6, 6, 3, 3, 3, 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] [2022-02-15 03:20:29,175 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-02-15 03:20:29,175 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:20:29,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:20:29,175 INFO L85 PathProgramCache]: Analyzing trace with hash 304357303, now seen corresponding path program 1 times [2022-02-15 03:20:29,176 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:20:29,176 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [743977663] [2022-02-15 03:20:29,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:21:02,594 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-15 03:21:02,595 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-02-15 03:21:02,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:21:02,606 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:21:02,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:21:03,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:21:03,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:21:03,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:21:03,114 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:21:03,114 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [743977663] [2022-02-15 03:21:03,114 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [743977663] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:21:03,114 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:21:03,114 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-15 03:21:03,114 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963813964] [2022-02-15 03:21:03,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:21:03,115 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-15 03:21:03,115 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:21:03,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-15 03:21:03,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-02-15 03:21:03,115 INFO L87 Difference]: Start difference. First operand 7794 states and 11322 transitions. Second operand has 11 states, 11 states have (on average 18.636363636363637) internal successors, (205), 10 states have internal predecessors, (205), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:21:05,989 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:21:08,018 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:21:09,969 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:21:11,992 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:21:14,014 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:21:15,949 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.93s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:21:20,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:21:20,997 INFO L93 Difference]: Finished difference Result 31655 states and 45478 transitions. [2022-02-15 03:21:20,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-02-15 03:21:20,998 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 18.636363636363637) internal successors, (205), 10 states have internal predecessors, (205), 1 states have call successors, (3), 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 426 [2022-02-15 03:21:20,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:21:21,058 INFO L225 Difference]: With dead ends: 31655 [2022-02-15 03:21:21,058 INFO L226 Difference]: Without dead ends: 23889 [2022-02-15 03:21:21,083 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 452 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=320, Invalid=1320, Unknown=0, NotChecked=0, Total=1640 [2022-02-15 03:21:21,083 INFO L933 BasicCegarLoop]: 287 mSDtfsCounter, 1222 mSDsluCounter, 1582 mSDsCounter, 0 mSdLazyCounter, 2063 mSolverCounterSat, 194 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1222 SdHoareTripleChecker+Valid, 1869 SdHoareTripleChecker+Invalid, 2261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 194 IncrementalHoareTripleChecker+Valid, 2063 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.0s IncrementalHoareTripleChecker+Time [2022-02-15 03:21:21,084 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1222 Valid, 1869 Invalid, 2261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [194 Valid, 2063 Invalid, 4 Unknown, 0 Unchecked, 15.0s Time] [2022-02-15 03:21:21,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23889 states. [2022-02-15 03:21:22,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23889 to 15004. [2022-02-15 03:21:22,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15004 states, 14999 states have (on average 1.4594306287085805) internal successors, (21890), 14999 states have internal predecessors, (21890), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:21:23,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15004 states to 15004 states and 21894 transitions. [2022-02-15 03:21:23,020 INFO L78 Accepts]: Start accepts. Automaton has 15004 states and 21894 transitions. Word has length 426 [2022-02-15 03:21:23,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:21:23,021 INFO L470 AbstractCegarLoop]: Abstraction has 15004 states and 21894 transitions. [2022-02-15 03:21:23,021 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 18.636363636363637) internal successors, (205), 10 states have internal predecessors, (205), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:21:23,021 INFO L276 IsEmpty]: Start isEmpty. Operand 15004 states and 21894 transitions. [2022-02-15 03:21:23,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 429 [2022-02-15 03:21:23,046 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:21:23,046 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 6, 6, 5, 3, 3, 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] [2022-02-15 03:21:23,046 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-02-15 03:21:23,046 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:21:23,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:21:23,047 INFO L85 PathProgramCache]: Analyzing trace with hash -586814631, now seen corresponding path program 1 times [2022-02-15 03:21:23,047 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:21:23,047 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1629412391] [2022-02-15 03:21:23,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:22:08,004 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-15 03:22:08,004 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-02-15 03:22:08,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:22:08,015 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:22:08,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:22:08,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:22:08,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:22:08,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:22:08,216 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:22:08,216 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1629412391] [2022-02-15 03:22:08,216 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1629412391] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:22:08,216 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:22:08,216 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 03:22:08,216 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898496686] [2022-02-15 03:22:08,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:22:08,218 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 03:22:08,219 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:22:08,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 03:22:08,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 03:22:08,220 INFO L87 Difference]: Start difference. First operand 15004 states and 21894 transitions. Second operand has 5 states, 5 states have (on average 35.4) internal successors, (177), 4 states have internal predecessors, (177), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:22:09,648 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:22:12,175 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:22:14,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:22:14,610 INFO L93 Difference]: Finished difference Result 30924 states and 44924 transitions. [2022-02-15 03:22:14,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 03:22:14,615 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.4) internal successors, (177), 4 states have internal predecessors, (177), 1 states have call successors, (3), 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 428 [2022-02-15 03:22:14,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:22:14,645 INFO L225 Difference]: With dead ends: 30924 [2022-02-15 03:22:14,645 INFO L226 Difference]: Without dead ends: 15948 [2022-02-15 03:22:14,676 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 03:22:14,676 INFO L933 BasicCegarLoop]: 256 mSDtfsCounter, 47 mSDsluCounter, 371 mSDsCounter, 0 mSdLazyCounter, 540 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 627 SdHoareTripleChecker+Invalid, 548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 540 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-02-15 03:22:14,677 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [47 Valid, 627 Invalid, 548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 540 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2022-02-15 03:22:14,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15948 states. [2022-02-15 03:22:16,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15948 to 15036. [2022-02-15 03:22:16,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15036 states, 15031 states have (on average 1.4584525314350343) internal successors, (21922), 15031 states have internal predecessors, (21922), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:22:16,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15036 states to 15036 states and 21926 transitions. [2022-02-15 03:22:16,361 INFO L78 Accepts]: Start accepts. Automaton has 15036 states and 21926 transitions. Word has length 428 [2022-02-15 03:22:16,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:22:16,362 INFO L470 AbstractCegarLoop]: Abstraction has 15036 states and 21926 transitions. [2022-02-15 03:22:16,362 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.4) internal successors, (177), 4 states have internal predecessors, (177), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:22:16,362 INFO L276 IsEmpty]: Start isEmpty. Operand 15036 states and 21926 transitions. [2022-02-15 03:22:16,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 471 [2022-02-15 03:22:16,386 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:22:16,386 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-02-15 03:22:16,387 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-02-15 03:22:16,387 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:22:16,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:22:16,387 INFO L85 PathProgramCache]: Analyzing trace with hash 90657193, now seen corresponding path program 1 times [2022-02-15 03:22:16,387 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:22:16,387 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1372607149] [2022-02-15 03:22:16,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:22:45,496 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-15 03:22:45,496 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-02-15 03:22:45,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:22:45,510 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:22:45,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:22:45,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:22:45,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:22:45,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:22:45,738 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:22:45,738 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1372607149] [2022-02-15 03:22:45,738 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1372607149] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:22:45,738 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:22:45,738 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 03:22:45,738 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086500205] [2022-02-15 03:22:45,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:22:45,739 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 03:22:45,739 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:22:45,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 03:22:45,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 03:22:45,740 INFO L87 Difference]: Start difference. First operand 15036 states and 21926 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) [2022-02-15 03:22:48,695 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:22:49,901 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:22:51,260 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:22:53,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:22:53,455 INFO L93 Difference]: Finished difference Result 30956 states and 44924 transitions. [2022-02-15 03:22:53,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 03:22:53,455 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 470 [2022-02-15 03:22:53,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:22:53,482 INFO L225 Difference]: With dead ends: 30956 [2022-02-15 03:22:53,483 INFO L226 Difference]: Without dead ends: 15948 [2022-02-15 03:22:53,509 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 03:22:53,509 INFO L933 BasicCegarLoop]: 255 mSDtfsCounter, 66 mSDsluCounter, 370 mSDsCounter, 0 mSdLazyCounter, 538 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 625 SdHoareTripleChecker+Invalid, 547 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 538 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-02-15 03:22:53,509 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [66 Valid, 625 Invalid, 547 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 538 Invalid, 1 Unknown, 0 Unchecked, 6.0s Time] [2022-02-15 03:22:53,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15948 states. [2022-02-15 03:22:55,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15948 to 15036. [2022-02-15 03:22:55,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15036 states, 15031 states have (on average 1.456323597897678) internal successors, (21890), 15031 states have internal predecessors, (21890), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:22:55,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15036 states to 15036 states and 21894 transitions. [2022-02-15 03:22:55,180 INFO L78 Accepts]: Start accepts. Automaton has 15036 states and 21894 transitions. Word has length 470 [2022-02-15 03:22:55,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:22:55,181 INFO L470 AbstractCegarLoop]: Abstraction has 15036 states and 21894 transitions. [2022-02-15 03:22:55,181 INFO L471 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) [2022-02-15 03:22:55,181 INFO L276 IsEmpty]: Start isEmpty. Operand 15036 states and 21894 transitions. [2022-02-15 03:22:55,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 473 [2022-02-15 03:22:55,201 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:22:55,201 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 11, 11, 11, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:22:55,201 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-02-15 03:22:55,202 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:22:55,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:22:55,202 INFO L85 PathProgramCache]: Analyzing trace with hash 1587849969, now seen corresponding path program 1 times [2022-02-15 03:22:55,202 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:22:55,202 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1320968105] [2022-02-15 03:22:55,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:23:30,330 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-15 03:23:30,330 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-02-15 03:23:30,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:23:30,343 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:23:30,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:23:30,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:23:30,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:23:30,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:23:30,539 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:23:30,539 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1320968105] [2022-02-15 03:23:30,539 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1320968105] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:23:30,539 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:23:30,539 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 03:23:30,539 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174533293] [2022-02-15 03:23:30,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:23:30,539 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 03:23:30,540 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:23:30,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 03:23:30,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 03:23:30,540 INFO L87 Difference]: Start difference. First operand 15036 states and 21894 transitions. Second operand has 5 states, 5 states have (on average 32.8) internal successors, (164), 4 states have internal predecessors, (164), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:23:32,015 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:23:34,032 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:23:35,382 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:23:37,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:23:37,456 INFO L93 Difference]: Finished difference Result 30464 states and 44280 transitions. [2022-02-15 03:23:37,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 03:23:37,457 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.8) internal successors, (164), 4 states have internal predecessors, (164), 1 states have call successors, (3), 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 472 [2022-02-15 03:23:37,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:23:37,488 INFO L225 Difference]: With dead ends: 30464 [2022-02-15 03:23:37,489 INFO L226 Difference]: Without dead ends: 15456 [2022-02-15 03:23:37,516 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 03:23:37,516 INFO L933 BasicCegarLoop]: 237 mSDtfsCounter, 27 mSDsluCounter, 353 mSDsCounter, 0 mSdLazyCounter, 439 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 590 SdHoareTripleChecker+Invalid, 445 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 439 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-02-15 03:23:37,516 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [27 Valid, 590 Invalid, 445 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 439 Invalid, 1 Unknown, 0 Unchecked, 5.2s Time] [2022-02-15 03:23:37,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15456 states. [2022-02-15 03:23:39,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15456 to 15036. [2022-02-15 03:23:39,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15036 states, 15031 states have (on average 1.454194664360322) internal successors, (21858), 15031 states have internal predecessors, (21858), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:23:39,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15036 states to 15036 states and 21862 transitions. [2022-02-15 03:23:39,273 INFO L78 Accepts]: Start accepts. Automaton has 15036 states and 21862 transitions. Word has length 472 [2022-02-15 03:23:39,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:23:39,274 INFO L470 AbstractCegarLoop]: Abstraction has 15036 states and 21862 transitions. [2022-02-15 03:23:39,274 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.8) internal successors, (164), 4 states have internal predecessors, (164), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:23:39,274 INFO L276 IsEmpty]: Start isEmpty. Operand 15036 states and 21862 transitions. [2022-02-15 03:23:39,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 473 [2022-02-15 03:23:39,294 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:23:39,294 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 11, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:23:39,294 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-02-15 03:23:39,294 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:23:39,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:23:39,294 INFO L85 PathProgramCache]: Analyzing trace with hash -935256423, now seen corresponding path program 1 times [2022-02-15 03:23:39,295 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:23:39,295 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [18386760] [2022-02-15 03:23:39,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:24:08,361 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-15 03:24:08,361 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-02-15 03:24:08,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:24:08,373 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:24:08,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:24:08,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:24:08,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:24:08,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:24:08,560 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:24:08,560 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [18386760] [2022-02-15 03:24:08,560 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [18386760] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:24:08,560 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:24:08,561 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 03:24:08,561 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832739234] [2022-02-15 03:24:08,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:24:08,561 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 03:24:08,561 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:24:08,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 03:24:08,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 03:24:08,562 INFO L87 Difference]: Start difference. First operand 15036 states and 21862 transitions. Second operand has 5 states, 5 states have (on average 32.8) internal successors, (164), 4 states have internal predecessors, (164), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:24:10,958 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:24:14,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:24:14,839 INFO L93 Difference]: Finished difference Result 30828 states and 44640 transitions. [2022-02-15 03:24:14,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 03:24:14,840 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.8) internal successors, (164), 4 states have internal predecessors, (164), 1 states have call successors, (3), 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 472 [2022-02-15 03:24:14,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:24:14,868 INFO L225 Difference]: With dead ends: 30828 [2022-02-15 03:24:14,869 INFO L226 Difference]: Without dead ends: 15820 [2022-02-15 03:24:14,893 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 03:24:14,893 INFO L933 BasicCegarLoop]: 251 mSDtfsCounter, 60 mSDsluCounter, 366 mSDsCounter, 0 mSdLazyCounter, 523 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 617 SdHoareTripleChecker+Invalid, 532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 523 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-02-15 03:24:14,893 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [60 Valid, 617 Invalid, 532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 523 Invalid, 1 Unknown, 0 Unchecked, 4.5s Time] [2022-02-15 03:24:14,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15820 states. [2022-02-15 03:24:16,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15820 to 15036. [2022-02-15 03:24:16,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15036 states, 15031 states have (on average 1.4520657308229659) internal successors, (21826), 15031 states have internal predecessors, (21826), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:24:16,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15036 states to 15036 states and 21830 transitions. [2022-02-15 03:24:16,633 INFO L78 Accepts]: Start accepts. Automaton has 15036 states and 21830 transitions. Word has length 472 [2022-02-15 03:24:16,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:24:16,633 INFO L470 AbstractCegarLoop]: Abstraction has 15036 states and 21830 transitions. [2022-02-15 03:24:16,633 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.8) internal successors, (164), 4 states have internal predecessors, (164), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:24:16,633 INFO L276 IsEmpty]: Start isEmpty. Operand 15036 states and 21830 transitions. [2022-02-15 03:24:16,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 481 [2022-02-15 03:24:16,658 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:24:16,659 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 9, 9, 9, 9, 9, 9, 9, 9, 9, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:24:16,659 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-02-15 03:24:16,659 INFO L402 AbstractCegarLoop]: === Iteration 56 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:24:16,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:24:16,659 INFO L85 PathProgramCache]: Analyzing trace with hash 999048313, now seen corresponding path program 1 times [2022-02-15 03:24:16,659 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:24:16,659 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [662107559] [2022-02-15 03:24:16,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:24:53,213 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-15 03:24:53,213 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-02-15 03:24:53,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:24:53,227 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:24:53,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:24:53,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:24:53,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:24:53,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:24:53,458 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:24:53,459 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [662107559] [2022-02-15 03:24:53,459 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [662107559] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:24:53,459 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:24:53,459 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-02-15 03:24:53,459 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544784369] [2022-02-15 03:24:53,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:24:53,460 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-02-15 03:24:53,460 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:24:53,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-02-15 03:24:53,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-02-15 03:24:53,460 INFO L87 Difference]: Start difference. First operand 15036 states and 21830 transitions. Second operand has 8 states, 8 states have (on average 24.0) internal successors, (192), 7 states have internal predecessors, (192), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:24:55,767 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:24:58,189 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:25:00,212 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:25:01,937 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:25:03,115 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:25:06,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:25:06,163 INFO L93 Difference]: Finished difference Result 34425 states and 49734 transitions. [2022-02-15 03:25:06,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-15 03:25:06,163 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 24.0) internal successors, (192), 7 states have internal predecessors, (192), 1 states have call successors, (3), 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 480 [2022-02-15 03:25:06,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:25:06,195 INFO L225 Difference]: With dead ends: 34425 [2022-02-15 03:25:06,195 INFO L226 Difference]: Without dead ends: 19417 [2022-02-15 03:25:06,220 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2022-02-15 03:25:06,221 INFO L933 BasicCegarLoop]: 169 mSDtfsCounter, 328 mSDsluCounter, 677 mSDsCounter, 0 mSdLazyCounter, 1000 mSolverCounterSat, 112 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 328 SdHoareTripleChecker+Valid, 846 SdHoareTripleChecker+Invalid, 1113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 1000 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.4s IncrementalHoareTripleChecker+Time [2022-02-15 03:25:06,221 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [328 Valid, 846 Invalid, 1113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [112 Valid, 1000 Invalid, 1 Unknown, 0 Unchecked, 10.4s Time] [2022-02-15 03:25:06,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19417 states. [2022-02-15 03:25:08,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19417 to 16178. [2022-02-15 03:25:08,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16178 states, 16173 states have (on average 1.4409200519384158) internal successors, (23304), 16173 states have internal predecessors, (23304), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:25:08,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16178 states to 16178 states and 23308 transitions. [2022-02-15 03:25:08,193 INFO L78 Accepts]: Start accepts. Automaton has 16178 states and 23308 transitions. Word has length 480 [2022-02-15 03:25:08,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:25:08,193 INFO L470 AbstractCegarLoop]: Abstraction has 16178 states and 23308 transitions. [2022-02-15 03:25:08,193 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 24.0) internal successors, (192), 7 states have internal predecessors, (192), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:25:08,193 INFO L276 IsEmpty]: Start isEmpty. Operand 16178 states and 23308 transitions. [2022-02-15 03:25:08,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 483 [2022-02-15 03:25:08,219 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:25:08,219 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 9, 9, 9, 9, 9, 9, 9, 9, 9, 6, 6, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:25:08,220 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-02-15 03:25:08,220 INFO L402 AbstractCegarLoop]: === Iteration 57 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:25:08,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:25:08,220 INFO L85 PathProgramCache]: Analyzing trace with hash 1495588317, now seen corresponding path program 1 times [2022-02-15 03:25:08,220 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:25:08,220 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1078067275] [2022-02-15 03:25:08,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:25:42,947 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-15 03:25:42,948 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-02-15 03:25:42,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:25:42,967 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:25:43,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:25:43,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:25:43,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:25:43,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:25:43,189 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:25:43,189 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1078067275] [2022-02-15 03:25:43,189 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1078067275] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:25:43,189 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:25:43,189 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 03:25:43,189 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85549237] [2022-02-15 03:25:43,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:25:43,190 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 03:25:43,190 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:25:43,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 03:25:43,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 03:25:43,191 INFO L87 Difference]: Start difference. First operand 16178 states and 23308 transitions. Second operand has 5 states, 5 states have (on average 34.6) internal successors, (173), 4 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) [2022-02-15 03:25:44,322 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:25:47,898 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:25:50,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:25:50,116 INFO L93 Difference]: Finished difference Result 31466 states and 45246 transitions. [2022-02-15 03:25:50,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 03:25:50,117 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 34.6) internal successors, (173), 4 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 482 [2022-02-15 03:25:50,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:25:50,141 INFO L225 Difference]: With dead ends: 31466 [2022-02-15 03:25:50,141 INFO L226 Difference]: Without dead ends: 15316 [2022-02-15 03:25:50,165 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 03:25:50,165 INFO L933 BasicCegarLoop]: 236 mSDtfsCounter, 32 mSDsluCounter, 352 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 588 SdHoareTripleChecker+Invalid, 483 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-02-15 03:25:50,165 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [32 Valid, 588 Invalid, 483 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 473 Invalid, 1 Unknown, 0 Unchecked, 5.1s Time] [2022-02-15 03:25:50,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15316 states. [2022-02-15 03:25:51,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15316 to 14808. [2022-02-15 03:25:51,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14808 states, 14803 states have (on average 1.4394379517665339) internal successors, (21308), 14803 states have internal predecessors, (21308), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:25:51,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14808 states to 14808 states and 21312 transitions. [2022-02-15 03:25:51,943 INFO L78 Accepts]: Start accepts. Automaton has 14808 states and 21312 transitions. Word has length 482 [2022-02-15 03:25:51,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:25:51,943 INFO L470 AbstractCegarLoop]: Abstraction has 14808 states and 21312 transitions. [2022-02-15 03:25:51,944 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 34.6) internal successors, (173), 4 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) [2022-02-15 03:25:51,944 INFO L276 IsEmpty]: Start isEmpty. Operand 14808 states and 21312 transitions. [2022-02-15 03:25:51,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 485 [2022-02-15 03:25:51,961 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:25:51,961 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:25:51,962 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-02-15 03:25:51,962 INFO L402 AbstractCegarLoop]: === Iteration 58 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:25:51,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:25:51,962 INFO L85 PathProgramCache]: Analyzing trace with hash 137608219, now seen corresponding path program 1 times [2022-02-15 03:25:51,962 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:25:51,962 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1439128520] [2022-02-15 03:25:51,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:26:27,720 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-15 03:26:27,720 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-02-15 03:26:27,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:26:27,737 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:26:27,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:26:28,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:26:28,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:26:28,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:26:28,026 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:26:28,026 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1439128520] [2022-02-15 03:26:28,026 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1439128520] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:26:28,026 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:26:28,026 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 03:26:28,027 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517024201] [2022-02-15 03:26:28,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:26:28,027 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 03:26:28,027 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:26:28,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 03:26:28,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 03:26:28,027 INFO L87 Difference]: Start difference. First operand 14808 states and 21312 transitions. Second operand has 5 states, 5 states have (on average 34.8) internal successors, (174), 4 states have internal predecessors, (174), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:26:30,406 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:26:31,733 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:26:34,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:26:34,284 INFO L93 Difference]: Finished difference Result 30180 states and 43418 transitions. [2022-02-15 03:26:34,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 03:26:34,285 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 34.8) internal successors, (174), 4 states have internal predecessors, (174), 1 states have call successors, (3), 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 484 [2022-02-15 03:26:34,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:26:34,305 INFO L225 Difference]: With dead ends: 30180 [2022-02-15 03:26:34,305 INFO L226 Difference]: Without dead ends: 15400 [2022-02-15 03:26:34,320 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 03:26:34,321 INFO L933 BasicCegarLoop]: 229 mSDtfsCounter, 37 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 466 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 574 SdHoareTripleChecker+Invalid, 471 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 466 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-02-15 03:26:34,321 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 574 Invalid, 471 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 466 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2022-02-15 03:26:34,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15400 states. [2022-02-15 03:26:35,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15400 to 14808. [2022-02-15 03:26:36,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14808 states, 14803 states have (on average 1.4375464432885225) internal successors, (21280), 14803 states have internal predecessors, (21280), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:26:36,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14808 states to 14808 states and 21284 transitions. [2022-02-15 03:26:36,027 INFO L78 Accepts]: Start accepts. Automaton has 14808 states and 21284 transitions. Word has length 484 [2022-02-15 03:26:36,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:26:36,027 INFO L470 AbstractCegarLoop]: Abstraction has 14808 states and 21284 transitions. [2022-02-15 03:26:36,027 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 34.8) internal successors, (174), 4 states have internal predecessors, (174), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:26:36,027 INFO L276 IsEmpty]: Start isEmpty. Operand 14808 states and 21284 transitions. [2022-02-15 03:26:36,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 485 [2022-02-15 03:26:36,044 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:26:36,044 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 9, 9, 9, 9, 9, 9, 9, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:26:36,045 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-02-15 03:26:36,045 INFO L402 AbstractCegarLoop]: === Iteration 59 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:26:36,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:26:36,045 INFO L85 PathProgramCache]: Analyzing trace with hash -170106145, now seen corresponding path program 1 times [2022-02-15 03:26:36,045 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:26:36,045 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1880392781] [2022-02-15 03:26:36,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:27:08,297 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-15 03:27:08,297 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-02-15 03:27:08,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:27:08,309 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:27:08,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:27:08,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:27:08,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:27:08,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:27:08,964 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:27:08,965 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1880392781] [2022-02-15 03:27:08,965 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1880392781] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:27:08,965 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:27:08,965 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 03:27:08,965 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532156692] [2022-02-15 03:27:08,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:27:08,965 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 03:27:08,965 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:27:08,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 03:27:08,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2022-02-15 03:27:08,966 INFO L87 Difference]: Start difference. First operand 14808 states and 21284 transitions. Second operand has 14 states, 14 states have (on average 23.714285714285715) internal successors, (332), 13 states have internal predecessors, (332), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:27:11,764 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:27:13,789 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:27:16,555 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:27:18,581 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:27:20,886 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:27:22,374 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []