/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.12.i.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-d966a43 [2022-01-31 22:43:03,432 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-31 22:43:03,434 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-31 22:43:03,470 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-31 22:43:03,470 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-31 22:43:03,483 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-31 22:43:03,484 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-31 22:43:03,485 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-31 22:43:03,486 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-31 22:43:03,486 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-31 22:43:03,487 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-31 22:43:03,488 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-31 22:43:03,488 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-31 22:43:03,488 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-31 22:43:03,489 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-31 22:43:03,490 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-31 22:43:03,490 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-31 22:43:03,491 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-31 22:43:03,492 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-31 22:43:03,493 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-31 22:43:03,494 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-31 22:43:03,495 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-31 22:43:03,496 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-31 22:43:03,496 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-31 22:43:03,498 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-31 22:43:03,503 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-31 22:43:03,504 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-31 22:43:03,504 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-31 22:43:03,505 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationJordan_32.epf [2022-01-31 22:43:03,511 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-31 22:43:03,511 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-31 22:43:03,512 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-31 22:43:03,512 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-31 22:43:03,512 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-31 22:43:03,512 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-31 22:43:03,512 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-31 22:43:03,513 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-31 22:43:03,513 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-31 22:43:03,513 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-31 22:43:03,513 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-31 22:43:03,513 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-31 22:43:03,513 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-31 22:43:03,513 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-31 22:43:03,513 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-31 22:43:03,514 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-31 22:43:03,514 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-31 22:43:03,514 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-31 22:43:03,514 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-31 22:43:03,514 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-31 22:43:03,514 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2022-01-31 22:43:03,514 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-31 22:43:03,514 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=JORDAN [2022-01-31 22:43:03,515 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-31 22:43:03,667 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-31 22:43:03,686 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-31 22:43:03,688 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-31 22:43:03,688 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-31 22:43:03,689 INFO L275 PluginConnector]: CDTParser initialized [2022-01-31 22:43:03,690 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl/s3_srvr.blast.12.i.cil-1.c [2022-01-31 22:43:03,741 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e3b7fa448/76c9e43ac1f145d7957ce247c96c384f/FLAG2bedb7abc [2022-01-31 22:43:04,164 INFO L306 CDTParser]: Found 1 translation units. [2022-01-31 22:43:04,165 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.12.i.cil-1.c [2022-01-31 22:43:04,177 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e3b7fa448/76c9e43ac1f145d7957ce247c96c384f/FLAG2bedb7abc [2022-01-31 22:43:04,187 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e3b7fa448/76c9e43ac1f145d7957ce247c96c384f [2022-01-31 22:43:04,189 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-31 22:43:04,190 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-01-31 22:43:04,191 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-31 22:43:04,191 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-31 22:43:04,205 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-31 22:43:04,206 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 10:43:04" (1/1) ... [2022-01-31 22:43:04,206 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6dd6e926 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:43:04, skipping insertion in model container [2022-01-31 22:43:04,206 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 10:43:04" (1/1) ... [2022-01-31 22:43:04,211 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-31 22:43:04,258 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-31 22:43:04,543 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.12.i.cil-1.c[75166,75179] [2022-01-31 22:43:04,550 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-31 22:43:04,558 INFO L203 MainTranslator]: Completed pre-run [2022-01-31 22:43:04,650 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.12.i.cil-1.c[75166,75179] [2022-01-31 22:43:04,653 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-31 22:43:04,671 INFO L208 MainTranslator]: Completed translation [2022-01-31 22:43:04,671 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:43:04 WrapperNode [2022-01-31 22:43:04,671 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-31 22:43:04,672 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-31 22:43:04,672 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-31 22:43:04,673 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-31 22:43:04,681 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:43:04" (1/1) ... [2022-01-31 22:43:04,681 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:43:04" (1/1) ... [2022-01-31 22:43:04,710 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:43:04" (1/1) ... [2022-01-31 22:43:04,710 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:43:04" (1/1) ... [2022-01-31 22:43:04,768 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:43:04" (1/1) ... [2022-01-31 22:43:04,773 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:43:04" (1/1) ... [2022-01-31 22:43:04,783 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:43:04" (1/1) ... [2022-01-31 22:43:04,789 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-31 22:43:04,790 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-31 22:43:04,790 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-31 22:43:04,790 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-31 22:43:04,793 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:43:04" (1/1) ... [2022-01-31 22:43:04,798 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-31 22:43:04,805 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 22:43:04,815 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) [2022-01-31 22:43:04,821 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 [2022-01-31 22:43:04,841 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-01-31 22:43:04,841 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-31 22:43:04,842 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-01-31 22:43:04,842 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_server_method [2022-01-31 22:43:04,842 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_server_method [2022-01-31 22:43:04,842 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-01-31 22:43:04,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-01-31 22:43:04,843 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-01-31 22:43:04,843 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-01-31 22:43:04,843 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-01-31 22:43:04,843 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-01-31 22:43:04,844 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-01-31 22:43:04,844 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-01-31 22:43:04,844 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-31 22:43:04,845 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-01-31 22:43:04,846 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-01-31 22:43:04,846 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-01-31 22:43:04,846 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-01-31 22:43:04,846 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-01-31 22:43:04,846 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-01-31 22:43:04,846 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_server_method [2022-01-31 22:43:04,846 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-01-31 22:43:04,846 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-01-31 22:43:04,847 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_server_method [2022-01-31 22:43:04,847 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-01-31 22:43:04,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-01-31 22:43:04,847 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-01-31 22:43:04,847 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-01-31 22:43:04,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-31 22:43:04,847 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-01-31 22:43:04,847 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-31 22:43:04,847 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-01-31 22:43:04,847 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-01-31 22:43:04,848 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-01-31 22:43:04,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-31 22:43:04,848 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-31 22:43:04,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-01-31 22:43:04,848 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-01-31 22:43:04,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-01-31 22:43:04,848 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-01-31 22:43:04,848 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-31 22:43:05,012 INFO L234 CfgBuilder]: Building ICFG [2022-01-31 22:43:05,013 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-31 22:43:05,630 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-01-31 22:43:05,987 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2022-01-31 22:43:05,987 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2022-01-31 22:43:05,996 INFO L275 CfgBuilder]: Performing block encoding [2022-01-31 22:43:06,004 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-31 22:43:06,005 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-31 22:43:06,007 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 10:43:06 BoogieIcfgContainer [2022-01-31 22:43:06,007 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-31 22:43:06,009 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-31 22:43:06,010 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-31 22:43:06,012 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-31 22:43:06,012 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.01 10:43:04" (1/3) ... [2022-01-31 22:43:06,013 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@113c66b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 10:43:06, skipping insertion in model container [2022-01-31 22:43:06,013 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:43:04" (2/3) ... [2022-01-31 22:43:06,013 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@113c66b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 10:43:06, skipping insertion in model container [2022-01-31 22:43:06,013 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 10:43:06" (3/3) ... [2022-01-31 22:43:06,014 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr.blast.12.i.cil-1.c [2022-01-31 22:43:06,018 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-01-31 22:43:06,018 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-31 22:43:06,076 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-31 22:43:06,082 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 [2022-01-31 22:43:06,083 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-31 22:43:06,102 INFO L276 IsEmpty]: Start isEmpty. Operand has 160 states, 152 states have (on average 1.7105263157894737) internal successors, (260), 153 states have internal predecessors, (260), 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) [2022-01-31 22:43:06,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-01-31 22:43:06,120 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:43:06,120 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:43:06,121 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:43:06,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:43:06,125 INFO L85 PathProgramCache]: Analyzing trace with hash 1669369650, now seen corresponding path program 1 times [2022-01-31 22:43:06,130 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:43:06,131 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1205237843] [2022-01-31 22:43:06,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:43:06,141 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:43:06,183 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:43:06,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:43:06,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:43:06,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:43:06,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:43:06,565 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:43:06,565 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1205237843] [2022-01-31 22:43:06,566 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1205237843] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:43:06,566 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:43:06,566 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 22:43:06,567 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521859118] [2022-01-31 22:43:06,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:43:06,570 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 22:43:06,570 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:43:06,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 22:43:06,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 22:43:06,589 INFO L87 Difference]: Start difference. First operand has 160 states, 152 states have (on average 1.7105263157894737) internal successors, (260), 153 states have internal predecessors, (260), 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 8.8) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:43:09,738 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 [] [2022-01-31 22:43:10,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:43:10,439 INFO L93 Difference]: Finished difference Result 437 states and 740 transitions. [2022-01-31 22:43:10,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 22:43:10,441 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 48 [2022-01-31 22:43:10,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:43:10,448 INFO L225 Difference]: With dead ends: 437 [2022-01-31 22:43:10,448 INFO L226 Difference]: Without dead ends: 266 [2022-01-31 22:43:10,450 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 [2022-01-31 22:43:10,452 INFO L933 BasicCegarLoop]: 161 mSDtfsCounter, 160 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 539 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 473 SdHoareTripleChecker+Invalid, 602 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 539 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-01-31 22:43:10,453 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [160 Valid, 473 Invalid, 602 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 539 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2022-01-31 22:43:10,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2022-01-31 22:43:10,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 184. [2022-01-31 22:43:10,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 179 states have (on average 1.6089385474860336) internal successors, (288), 179 states have internal predecessors, (288), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:43:10,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 292 transitions. [2022-01-31 22:43:10,489 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 292 transitions. Word has length 48 [2022-01-31 22:43:10,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:43:10,489 INFO L470 AbstractCegarLoop]: Abstraction has 184 states and 292 transitions. [2022-01-31 22:43:10,489 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:43:10,489 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 292 transitions. [2022-01-31 22:43:10,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-01-31 22:43:10,491 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:43:10,491 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:43:10,491 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-31 22:43:10,491 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:43:10,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:43:10,492 INFO L85 PathProgramCache]: Analyzing trace with hash 203097938, now seen corresponding path program 1 times [2022-01-31 22:43:10,492 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:43:10,492 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [886087738] [2022-01-31 22:43:10,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:43:10,492 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:43:10,494 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:43:10,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:43:10,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:43:10,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:43:10,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:43:10,597 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:43:10,597 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [886087738] [2022-01-31 22:43:10,598 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [886087738] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:43:10,598 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:43:10,598 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 22:43:10,598 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088304082] [2022-01-31 22:43:10,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:43:10,598 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 22:43:10,599 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:43:10,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 22:43:10,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 22:43:10,604 INFO L87 Difference]: Start difference. First operand 184 states and 292 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:43:11,744 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 22:43:13,910 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 22:43:15,928 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 [] [2022-01-31 22:43:16,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:43:16,337 INFO L93 Difference]: Finished difference Result 381 states and 606 transitions. [2022-01-31 22:43:16,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 22:43:16,338 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 49 [2022-01-31 22:43:16,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:43:16,339 INFO L225 Difference]: With dead ends: 381 [2022-01-31 22:43:16,339 INFO L226 Difference]: Without dead ends: 212 [2022-01-31 22:43:16,340 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 [2022-01-31 22:43:16,341 INFO L933 BasicCegarLoop]: 190 mSDtfsCounter, 22 mSDsluCounter, 303 mSDsCounter, 0 mSdLazyCounter, 369 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 493 SdHoareTripleChecker+Invalid, 380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 369 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-01-31 22:43:16,342 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 493 Invalid, 380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 369 Invalid, 1 Unknown, 0 Unchecked, 5.7s Time] [2022-01-31 22:43:16,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2022-01-31 22:43:16,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 195. [2022-01-31 22:43:16,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 190 states have (on average 1.6157894736842104) internal successors, (307), 190 states have internal predecessors, (307), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:43:16,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 311 transitions. [2022-01-31 22:43:16,354 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 311 transitions. Word has length 49 [2022-01-31 22:43:16,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:43:16,354 INFO L470 AbstractCegarLoop]: Abstraction has 195 states and 311 transitions. [2022-01-31 22:43:16,354 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:43:16,354 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 311 transitions. [2022-01-31 22:43:16,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-01-31 22:43:16,356 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:43:16,356 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] [2022-01-31 22:43:16,356 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-31 22:43:16,356 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:43:16,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:43:16,357 INFO L85 PathProgramCache]: Analyzing trace with hash 143721976, now seen corresponding path program 1 times [2022-01-31 22:43:16,357 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:43:16,357 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [943353021] [2022-01-31 22:43:16,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:43:16,376 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:43:16,376 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:43:16,377 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:43:16,379 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:43:16,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:43:16,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:43:16,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:43:16,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:43:16,520 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:43:16,520 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [943353021] [2022-01-31 22:43:16,521 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [943353021] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:43:16,521 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:43:16,521 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 22:43:16,521 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419730261] [2022-01-31 22:43:16,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:43:16,522 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 22:43:16,522 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:43:16,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 22:43:16,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 22:43:16,523 INFO L87 Difference]: Start difference. First operand 195 states and 311 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:43:18,056 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 [] [2022-01-31 22:43:20,068 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 22:43:22,092 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 22:43:23,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:43:23,095 INFO L93 Difference]: Finished difference Result 381 states and 605 transitions. [2022-01-31 22:43:23,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 22:43:23,096 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 62 [2022-01-31 22:43:23,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:43:23,097 INFO L225 Difference]: With dead ends: 381 [2022-01-31 22:43:23,097 INFO L226 Difference]: Without dead ends: 212 [2022-01-31 22:43:23,098 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 [2022-01-31 22:43:23,098 INFO L933 BasicCegarLoop]: 191 mSDtfsCounter, 24 mSDsluCounter, 304 mSDsCounter, 0 mSdLazyCounter, 367 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 495 SdHoareTripleChecker+Invalid, 378 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 367 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2022-01-31 22:43:23,099 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 495 Invalid, 378 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 367 Invalid, 1 Unknown, 0 Unchecked, 6.5s Time] [2022-01-31 22:43:23,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2022-01-31 22:43:23,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 195. [2022-01-31 22:43:23,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 190 states have (on average 1.6105263157894736) internal successors, (306), 190 states have internal predecessors, (306), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:43:23,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 310 transitions. [2022-01-31 22:43:23,108 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 310 transitions. Word has length 62 [2022-01-31 22:43:23,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:43:23,109 INFO L470 AbstractCegarLoop]: Abstraction has 195 states and 310 transitions. [2022-01-31 22:43:23,109 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:43:23,109 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 310 transitions. [2022-01-31 22:43:23,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-01-31 22:43:23,110 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:43:23,110 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] [2022-01-31 22:43:23,111 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-31 22:43:23,111 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:43:23,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:43:23,111 INFO L85 PathProgramCache]: Analyzing trace with hash -2075650552, now seen corresponding path program 1 times [2022-01-31 22:43:23,111 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:43:23,111 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1687258529] [2022-01-31 22:43:23,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:43:23,118 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:43:23,118 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:43:23,118 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:43:23,121 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:43:23,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:43:23,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:43:23,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:43:23,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:43:23,244 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:43:23,244 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1687258529] [2022-01-31 22:43:23,245 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1687258529] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:43:23,245 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:43:23,245 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 22:43:23,245 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616145987] [2022-01-31 22:43:23,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:43:23,246 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 22:43:23,246 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:43:23,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 22:43:23,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 22:43:23,246 INFO L87 Difference]: Start difference. First operand 195 states and 310 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) [2022-01-31 22:43:25,126 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 22:43:26,843 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 22:43:28,665 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 [] [2022-01-31 22:43:29,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:43:29,016 INFO L93 Difference]: Finished difference Result 380 states and 603 transitions. [2022-01-31 22:43:29,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 22:43:29,016 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 [2022-01-31 22:43:29,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:43:29,017 INFO L225 Difference]: With dead ends: 380 [2022-01-31 22:43:29,017 INFO L226 Difference]: Without dead ends: 211 [2022-01-31 22:43:29,018 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 [2022-01-31 22:43:29,018 INFO L933 BasicCegarLoop]: 192 mSDtfsCounter, 28 mSDsluCounter, 305 mSDsCounter, 0 mSdLazyCounter, 366 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 497 SdHoareTripleChecker+Invalid, 375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 366 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-01-31 22:43:29,019 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 497 Invalid, 375 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 366 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2022-01-31 22:43:29,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2022-01-31 22:43:29,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 195. [2022-01-31 22:43:29,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 190 states have (on average 1.605263157894737) internal successors, (305), 190 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) [2022-01-31 22:43:29,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 309 transitions. [2022-01-31 22:43:29,026 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 309 transitions. Word has length 63 [2022-01-31 22:43:29,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:43:29,026 INFO L470 AbstractCegarLoop]: Abstraction has 195 states and 309 transitions. [2022-01-31 22:43:29,026 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) [2022-01-31 22:43:29,026 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 309 transitions. [2022-01-31 22:43:29,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-01-31 22:43:29,027 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:43:29,027 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] [2022-01-31 22:43:29,028 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-31 22:43:29,028 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:43:29,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:43:29,028 INFO L85 PathProgramCache]: Analyzing trace with hash 1171805940, now seen corresponding path program 1 times [2022-01-31 22:43:29,028 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:43:29,028 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1237203934] [2022-01-31 22:43:29,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:43:29,039 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:43:29,040 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:43:29,040 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:43:29,043 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:43:29,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:43:29,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:43:29,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:43:29,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:43:29,165 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:43:29,165 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1237203934] [2022-01-31 22:43:29,165 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1237203934] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:43:29,165 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:43:29,165 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 22:43:29,165 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243981304] [2022-01-31 22:43:29,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:43:29,166 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 22:43:29,166 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:43:29,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 22:43:29,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 22:43:29,166 INFO L87 Difference]: Start difference. First operand 195 states and 309 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) [2022-01-31 22:43:32,667 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 [] [2022-01-31 22:43:34,268 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 22:43:34,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:43:34,733 INFO L93 Difference]: Finished difference Result 485 states and 772 transitions. [2022-01-31 22:43:34,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 22:43:34,734 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 [2022-01-31 22:43:34,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:43:34,735 INFO L225 Difference]: With dead ends: 485 [2022-01-31 22:43:34,735 INFO L226 Difference]: Without dead ends: 316 [2022-01-31 22:43:34,736 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 [2022-01-31 22:43:34,736 INFO L933 BasicCegarLoop]: 122 mSDtfsCounter, 155 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 481 mSolverCounterSat, 64 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 356 SdHoareTripleChecker+Invalid, 546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 481 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-01-31 22:43:34,736 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [155 Valid, 356 Invalid, 546 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 481 Invalid, 1 Unknown, 0 Unchecked, 5.5s Time] [2022-01-31 22:43:34,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2022-01-31 22:43:34,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 207. [2022-01-31 22:43:34,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 202 states have (on average 1.5891089108910892) internal successors, (321), 202 states have internal predecessors, (321), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:43:34,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 325 transitions. [2022-01-31 22:43:34,746 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 325 transitions. Word has length 63 [2022-01-31 22:43:34,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:43:34,746 INFO L470 AbstractCegarLoop]: Abstraction has 207 states and 325 transitions. [2022-01-31 22:43:34,746 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) [2022-01-31 22:43:34,747 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 325 transitions. [2022-01-31 22:43:34,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-01-31 22:43:34,749 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:43:34,749 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] [2022-01-31 22:43:34,749 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-31 22:43:34,749 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:43:34,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:43:34,750 INFO L85 PathProgramCache]: Analyzing trace with hash -454794083, now seen corresponding path program 1 times [2022-01-31 22:43:34,750 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:43:34,751 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [712506856] [2022-01-31 22:43:34,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:43:34,756 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:43:34,756 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:43:34,757 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:43:34,759 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:43:34,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:43:34,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:43:34,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:43:34,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:43:34,856 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:43:34,856 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [712506856] [2022-01-31 22:43:34,856 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [712506856] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:43:34,856 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:43:34,856 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 22:43:34,856 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024462164] [2022-01-31 22:43:34,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:43:34,857 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 22:43:34,857 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:43:34,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 22:43:34,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 22:43:34,858 INFO L87 Difference]: Start difference. First operand 207 states and 325 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) [2022-01-31 22:43:37,461 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 [] [2022-01-31 22:43:37,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:43:37,943 INFO L93 Difference]: Finished difference Result 497 states and 786 transitions. [2022-01-31 22:43:37,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 22:43:37,944 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 [2022-01-31 22:43:37,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:43:37,945 INFO L225 Difference]: With dead ends: 497 [2022-01-31 22:43:37,945 INFO L226 Difference]: Without dead ends: 316 [2022-01-31 22:43:37,946 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 22:43:37,946 INFO L933 BasicCegarLoop]: 122 mSDtfsCounter, 149 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 356 SdHoareTripleChecker+Invalid, 546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-01-31 22:43:37,946 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [149 Valid, 356 Invalid, 546 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 482 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-01-31 22:43:37,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2022-01-31 22:43:37,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 212. [2022-01-31 22:43:37,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 207 states have (on average 1.5845410628019323) internal successors, (328), 207 states have internal predecessors, (328), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:43:37,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 332 transitions. [2022-01-31 22:43:37,954 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 332 transitions. Word has length 63 [2022-01-31 22:43:37,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:43:37,954 INFO L470 AbstractCegarLoop]: Abstraction has 212 states and 332 transitions. [2022-01-31 22:43:37,954 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) [2022-01-31 22:43:37,954 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 332 transitions. [2022-01-31 22:43:37,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-01-31 22:43:37,954 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:43:37,955 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] [2022-01-31 22:43:37,955 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-31 22:43:37,955 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:43:37,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:43:37,955 INFO L85 PathProgramCache]: Analyzing trace with hash -314067396, now seen corresponding path program 1 times [2022-01-31 22:43:37,955 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:43:37,955 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [802871624] [2022-01-31 22:43:37,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:43:37,957 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:43:37,957 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:43:37,957 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:43:37,962 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:43:37,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:43:38,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:43:38,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:43:38,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:43:38,040 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:43:38,040 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [802871624] [2022-01-31 22:43:38,040 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [802871624] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:43:38,040 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:43:38,040 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 22:43:38,040 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869124553] [2022-01-31 22:43:38,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:43:38,041 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 22:43:38,041 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:43:38,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 22:43:38,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 22:43:38,044 INFO L87 Difference]: Start difference. First operand 212 states and 332 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) [2022-01-31 22:43:40,456 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 [] [2022-01-31 22:43:40,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:43:40,784 INFO L93 Difference]: Finished difference Result 411 states and 647 transitions. [2022-01-31 22:43:40,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 22:43:40,784 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 [2022-01-31 22:43:40,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:43:40,785 INFO L225 Difference]: With dead ends: 411 [2022-01-31 22:43:40,785 INFO L226 Difference]: Without dead ends: 225 [2022-01-31 22:43:40,786 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 [2022-01-31 22:43:40,786 INFO L933 BasicCegarLoop]: 195 mSDtfsCounter, 18 mSDsluCounter, 308 mSDsCounter, 0 mSdLazyCounter, 360 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 503 SdHoareTripleChecker+Invalid, 368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 360 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-01-31 22:43:40,786 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 503 Invalid, 368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 360 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-01-31 22:43:40,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2022-01-31 22:43:40,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 212. [2022-01-31 22:43:40,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 207 states have (on average 1.5797101449275361) internal successors, (327), 207 states have internal predecessors, (327), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:43:40,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 331 transitions. [2022-01-31 22:43:40,793 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 331 transitions. Word has length 63 [2022-01-31 22:43:40,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:43:40,793 INFO L470 AbstractCegarLoop]: Abstraction has 212 states and 331 transitions. [2022-01-31 22:43:40,793 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) [2022-01-31 22:43:40,793 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 331 transitions. [2022-01-31 22:43:40,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-01-31 22:43:40,794 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:43:40,794 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] [2022-01-31 22:43:40,794 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-31 22:43:40,794 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:43:40,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:43:40,795 INFO L85 PathProgramCache]: Analyzing trace with hash -2131902929, now seen corresponding path program 1 times [2022-01-31 22:43:40,795 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:43:40,795 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1049735148] [2022-01-31 22:43:40,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:43:40,801 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:43:40,801 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:43:40,802 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:43:40,804 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:43:40,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:43:40,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:43:40,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:43:40,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:43:40,889 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:43:40,889 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1049735148] [2022-01-31 22:43:40,889 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1049735148] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:43:40,889 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:43:40,889 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 22:43:40,889 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666835593] [2022-01-31 22:43:40,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:43:40,890 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 22:43:40,890 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:43:40,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 22:43:40,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 22:43:40,891 INFO L87 Difference]: Start difference. First operand 212 states and 331 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) [2022-01-31 22:43:43,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:43:43,805 INFO L93 Difference]: Finished difference Result 502 states and 790 transitions. [2022-01-31 22:43:43,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 22:43:43,806 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 [2022-01-31 22:43:43,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:43:43,807 INFO L225 Difference]: With dead ends: 502 [2022-01-31 22:43:43,807 INFO L226 Difference]: Without dead ends: 316 [2022-01-31 22:43:43,807 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 [2022-01-31 22:43:43,808 INFO L933 BasicCegarLoop]: 122 mSDtfsCounter, 152 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 356 SdHoareTripleChecker+Invalid, 546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-01-31 22:43:43,808 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [152 Valid, 356 Invalid, 546 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 482 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-01-31 22:43:43,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2022-01-31 22:43:43,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 212. [2022-01-31 22:43:43,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 207 states have (on average 1.565217391304348) internal successors, (324), 207 states have internal predecessors, (324), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:43:43,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 328 transitions. [2022-01-31 22:43:43,814 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 328 transitions. Word has length 64 [2022-01-31 22:43:43,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:43:43,815 INFO L470 AbstractCegarLoop]: Abstraction has 212 states and 328 transitions. [2022-01-31 22:43:43,815 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) [2022-01-31 22:43:43,815 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 328 transitions. [2022-01-31 22:43:43,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-01-31 22:43:43,815 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:43:43,815 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] [2022-01-31 22:43:43,815 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-31 22:43:43,816 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:43:43,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:43:43,816 INFO L85 PathProgramCache]: Analyzing trace with hash 1205535343, now seen corresponding path program 1 times [2022-01-31 22:43:43,816 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:43:43,816 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1054520745] [2022-01-31 22:43:43,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:43:43,822 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:43:43,822 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:43:43,822 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:43:43,826 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:43:43,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:43:43,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:43:43,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:43:43,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:43:43,896 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:43:43,896 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1054520745] [2022-01-31 22:43:43,896 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1054520745] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:43:43,896 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:43:43,896 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 22:43:43,896 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476074307] [2022-01-31 22:43:43,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:43:43,897 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 22:43:43,897 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:43:43,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 22:43:43,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 22:43:43,898 INFO L87 Difference]: Start difference. First operand 212 states and 328 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) [2022-01-31 22:43:47,337 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 [] [2022-01-31 22:43:48,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:43:48,559 INFO L93 Difference]: Finished difference Result 411 states and 641 transitions. [2022-01-31 22:43:48,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 22:43:48,559 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 [2022-01-31 22:43:48,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:43:48,560 INFO L225 Difference]: With dead ends: 411 [2022-01-31 22:43:48,561 INFO L226 Difference]: Without dead ends: 225 [2022-01-31 22:43:48,561 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 [2022-01-31 22:43:48,561 INFO L933 BasicCegarLoop]: 195 mSDtfsCounter, 20 mSDsluCounter, 308 mSDsCounter, 0 mSdLazyCounter, 359 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 503 SdHoareTripleChecker+Invalid, 368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 359 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-01-31 22:43:48,562 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 503 Invalid, 368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 359 Invalid, 1 Unknown, 0 Unchecked, 4.6s Time] [2022-01-31 22:43:48,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2022-01-31 22:43:48,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 212. [2022-01-31 22:43:48,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 207 states have (on average 1.5603864734299517) internal successors, (323), 207 states have internal predecessors, (323), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:43:48,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 327 transitions. [2022-01-31 22:43:48,568 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 327 transitions. Word has length 65 [2022-01-31 22:43:48,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:43:48,568 INFO L470 AbstractCegarLoop]: Abstraction has 212 states and 327 transitions. [2022-01-31 22:43:48,568 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) [2022-01-31 22:43:48,568 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 327 transitions. [2022-01-31 22:43:48,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-01-31 22:43:48,568 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:43:48,569 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] [2022-01-31 22:43:48,569 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-31 22:43:48,569 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:43:48,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:43:48,569 INFO L85 PathProgramCache]: Analyzing trace with hash -34862518, now seen corresponding path program 1 times [2022-01-31 22:43:48,569 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:43:48,569 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [112900480] [2022-01-31 22:43:48,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:43:48,574 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:43:48,574 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:43:48,574 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:43:48,577 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:43:48,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:43:48,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:43:48,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:43:48,667 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:43:48,667 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:43:48,667 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [112900480] [2022-01-31 22:43:48,668 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [112900480] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:43:48,668 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:43:48,668 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 22:43:48,668 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068307664] [2022-01-31 22:43:48,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:43:48,668 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 22:43:48,668 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:43:48,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 22:43:48,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 22:43:48,669 INFO L87 Difference]: Start difference. First operand 212 states and 327 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) [2022-01-31 22:43:51,035 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 22:43:52,066 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 22:43:52,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:43:52,350 INFO L93 Difference]: Finished difference Result 401 states and 627 transitions. [2022-01-31 22:43:52,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 22:43:52,351 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 [2022-01-31 22:43:52,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:43:52,351 INFO L225 Difference]: With dead ends: 401 [2022-01-31 22:43:52,352 INFO L226 Difference]: Without dead ends: 215 [2022-01-31 22:43:52,352 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 [2022-01-31 22:43:52,352 INFO L933 BasicCegarLoop]: 202 mSDtfsCounter, 11 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 346 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 517 SdHoareTripleChecker+Invalid, 350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 346 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-01-31 22:43:52,353 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 517 Invalid, 350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 346 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-01-31 22:43:52,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2022-01-31 22:43:52,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 212. [2022-01-31 22:43:52,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 207 states have (on average 1.5555555555555556) internal successors, (322), 207 states have internal predecessors, (322), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:43:52,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 326 transitions. [2022-01-31 22:43:52,359 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 326 transitions. Word has length 66 [2022-01-31 22:43:52,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:43:52,359 INFO L470 AbstractCegarLoop]: Abstraction has 212 states and 326 transitions. [2022-01-31 22:43:52,359 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) [2022-01-31 22:43:52,359 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 326 transitions. [2022-01-31 22:43:52,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-01-31 22:43:52,360 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:43:52,360 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] [2022-01-31 22:43:52,360 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-31 22:43:52,360 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:43:52,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:43:52,360 INFO L85 PathProgramCache]: Analyzing trace with hash 762209537, now seen corresponding path program 1 times [2022-01-31 22:43:52,360 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:43:52,360 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1822636412] [2022-01-31 22:43:52,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:43:52,364 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:43:52,364 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:43:52,364 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:43:52,367 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:43:52,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:43:52,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:43:52,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:43:52,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:43:52,446 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:43:52,446 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1822636412] [2022-01-31 22:43:52,446 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1822636412] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:43:52,446 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:43:52,446 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 22:43:52,446 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461336927] [2022-01-31 22:43:52,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:43:52,447 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 22:43:52,447 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:43:52,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 22:43:52,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 22:43:52,448 INFO L87 Difference]: Start difference. First operand 212 states and 326 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) [2022-01-31 22:43:55,691 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 [] [2022-01-31 22:43:56,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:43:56,040 INFO L93 Difference]: Finished difference Result 441 states and 685 transitions. [2022-01-31 22:43:56,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 22:43:56,040 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 [2022-01-31 22:43:56,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:43:56,041 INFO L225 Difference]: With dead ends: 441 [2022-01-31 22:43:56,041 INFO L226 Difference]: Without dead ends: 255 [2022-01-31 22:43:56,042 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 [2022-01-31 22:43:56,042 INFO L933 BasicCegarLoop]: 198 mSDtfsCounter, 31 mSDsluCounter, 317 mSDsCounter, 0 mSdLazyCounter, 402 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 515 SdHoareTripleChecker+Invalid, 413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-01-31 22:43:56,043 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [31 Valid, 515 Invalid, 413 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 402 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-01-31 22:43:56,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2022-01-31 22:43:56,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 234. [2022-01-31 22:43:56,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 229 states have (on average 1.5589519650655022) internal successors, (357), 229 states have internal predecessors, (357), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:43:56,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 361 transitions. [2022-01-31 22:43:56,049 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 361 transitions. Word has length 66 [2022-01-31 22:43:56,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:43:56,050 INFO L470 AbstractCegarLoop]: Abstraction has 234 states and 361 transitions. [2022-01-31 22:43:56,050 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) [2022-01-31 22:43:56,050 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 361 transitions. [2022-01-31 22:43:56,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-01-31 22:43:56,050 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:43:56,050 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] [2022-01-31 22:43:56,050 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-31 22:43:56,051 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:43:56,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:43:56,051 INFO L85 PathProgramCache]: Analyzing trace with hash -554066775, now seen corresponding path program 1 times [2022-01-31 22:43:56,051 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:43:56,051 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [762270802] [2022-01-31 22:43:56,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:43:56,059 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:43:56,059 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:43:56,059 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:43:56,063 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:43:56,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:43:56,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:43:56,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:43:56,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:43:56,172 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:43:56,172 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [762270802] [2022-01-31 22:43:56,172 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [762270802] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:43:56,172 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:43:56,172 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 22:43:56,172 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500183202] [2022-01-31 22:43:56,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:43:56,172 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 22:43:56,172 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:43:56,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 22:43:56,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 22:43:56,173 INFO L87 Difference]: Start difference. First operand 234 states and 361 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) [2022-01-31 22:43:59,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:43:59,268 INFO L93 Difference]: Finished difference Result 461 states and 717 transitions. [2022-01-31 22:43:59,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 22:43:59,268 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 79 [2022-01-31 22:43:59,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:43:59,269 INFO L225 Difference]: With dead ends: 461 [2022-01-31 22:43:59,270 INFO L226 Difference]: Without dead ends: 253 [2022-01-31 22:43:59,270 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 [2022-01-31 22:43:59,270 INFO L933 BasicCegarLoop]: 201 mSDtfsCounter, 36 mSDsluCounter, 318 mSDsCounter, 0 mSdLazyCounter, 397 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 519 SdHoareTripleChecker+Invalid, 407 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 397 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-01-31 22:43:59,271 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 519 Invalid, 407 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 397 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-01-31 22:43:59,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2022-01-31 22:43:59,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 234. [2022-01-31 22:43:59,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 229 states have (on average 1.554585152838428) internal successors, (356), 229 states have internal predecessors, (356), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:43:59,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 360 transitions. [2022-01-31 22:43:59,277 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 360 transitions. Word has length 79 [2022-01-31 22:43:59,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:43:59,277 INFO L470 AbstractCegarLoop]: Abstraction has 234 states and 360 transitions. [2022-01-31 22:43:59,277 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) [2022-01-31 22:43:59,277 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 360 transitions. [2022-01-31 22:43:59,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-01-31 22:43:59,278 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:43:59,278 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:43:59,278 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-31 22:43:59,278 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:43:59,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:43:59,279 INFO L85 PathProgramCache]: Analyzing trace with hash 2062701943, now seen corresponding path program 1 times [2022-01-31 22:43:59,279 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:43:59,279 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1072625185] [2022-01-31 22:43:59,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:43:59,291 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:43:59,291 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:43:59,291 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:43:59,294 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:43:59,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:43:59,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:43:59,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:43:59,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:43:59,390 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:43:59,390 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1072625185] [2022-01-31 22:43:59,390 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1072625185] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:43:59,390 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:43:59,390 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 22:43:59,390 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [514067684] [2022-01-31 22:43:59,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:43:59,390 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 22:43:59,390 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:43:59,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 22:43:59,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 22:43:59,391 INFO L87 Difference]: Start difference. First operand 234 states and 360 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) [2022-01-31 22:44:02,188 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 22:44:03,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:44:03,536 INFO L93 Difference]: Finished difference Result 471 states and 731 transitions. [2022-01-31 22:44:03,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 22:44:03,536 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 80 [2022-01-31 22:44:03,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:44:03,537 INFO L225 Difference]: With dead ends: 471 [2022-01-31 22:44:03,538 INFO L226 Difference]: Without dead ends: 263 [2022-01-31 22:44:03,538 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 [2022-01-31 22:44:03,538 INFO L933 BasicCegarLoop]: 232 mSDtfsCounter, 20 mSDsluCounter, 350 mSDsCounter, 0 mSdLazyCounter, 401 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 582 SdHoareTripleChecker+Invalid, 411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-01-31 22:44:03,539 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 582 Invalid, 411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 401 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-01-31 22:44:03,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263 states. [2022-01-31 22:44:03,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263 to 250. [2022-01-31 22:44:03,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 250 states, 245 states have (on average 1.5510204081632653) internal successors, (380), 245 states have internal predecessors, (380), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:44:03,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 384 transitions. [2022-01-31 22:44:03,546 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 384 transitions. Word has length 80 [2022-01-31 22:44:03,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:44:03,546 INFO L470 AbstractCegarLoop]: Abstraction has 250 states and 384 transitions. [2022-01-31 22:44:03,546 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) [2022-01-31 22:44:03,546 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 384 transitions. [2022-01-31 22:44:03,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-01-31 22:44:03,547 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:44:03,547 INFO L514 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1] [2022-01-31 22:44:03,547 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-31 22:44:03,547 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:44:03,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:44:03,547 INFO L85 PathProgramCache]: Analyzing trace with hash -470682197, now seen corresponding path program 1 times [2022-01-31 22:44:03,547 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:44:03,547 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1473569824] [2022-01-31 22:44:03,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:44:03,552 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:44:03,553 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:44:03,553 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:44:03,556 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:44:03,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:44:03,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:44:03,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:44:03,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:44:03,653 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:44:03,653 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1473569824] [2022-01-31 22:44:03,653 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1473569824] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:44:03,653 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:44:03,653 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 22:44:03,653 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657796850] [2022-01-31 22:44:03,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:44:03,654 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 22:44:03,654 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:44:03,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 22:44:03,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 22:44:03,654 INFO L87 Difference]: Start difference. First operand 250 states and 384 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:44:06,320 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 [] [2022-01-31 22:44:07,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:44:07,551 INFO L93 Difference]: Finished difference Result 577 states and 898 transitions. [2022-01-31 22:44:07,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 22:44:07,551 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 [2022-01-31 22:44:07,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:44:07,558 INFO L225 Difference]: With dead ends: 577 [2022-01-31 22:44:07,558 INFO L226 Difference]: Without dead ends: 353 [2022-01-31 22:44:07,559 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 [2022-01-31 22:44:07,559 INFO L933 BasicCegarLoop]: 123 mSDtfsCounter, 147 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 479 mSolverCounterSat, 63 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 358 SdHoareTripleChecker+Invalid, 543 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 479 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-01-31 22:44:07,559 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [147 Valid, 358 Invalid, 543 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 479 Invalid, 1 Unknown, 0 Unchecked, 3.9s Time] [2022-01-31 22:44:07,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states. [2022-01-31 22:44:07,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 251. [2022-01-31 22:44:07,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 251 states, 246 states have (on average 1.5406504065040652) internal successors, (379), 246 states have internal predecessors, (379), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:44:07,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 383 transitions. [2022-01-31 22:44:07,567 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 383 transitions. Word has length 80 [2022-01-31 22:44:07,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:44:07,567 INFO L470 AbstractCegarLoop]: Abstraction has 251 states and 383 transitions. [2022-01-31 22:44:07,567 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) [2022-01-31 22:44:07,567 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 383 transitions. [2022-01-31 22:44:07,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-01-31 22:44:07,568 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:44:07,568 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:44:07,568 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-31 22:44:07,568 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:44:07,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:44:07,568 INFO L85 PathProgramCache]: Analyzing trace with hash -1614982856, now seen corresponding path program 1 times [2022-01-31 22:44:07,568 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:44:07,568 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1951468335] [2022-01-31 22:44:07,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:44:07,578 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:44:07,578 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:44:07,578 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:44:07,582 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:44:07,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:44:07,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:44:07,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:44:07,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:44:07,662 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:44:07,662 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1951468335] [2022-01-31 22:44:07,662 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1951468335] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:44:07,662 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:44:07,662 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-31 22:44:07,662 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307376159] [2022-01-31 22:44:07,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:44:07,663 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-31 22:44:07,663 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:44:07,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-31 22:44:07,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-31 22:44:07,663 INFO L87 Difference]: Start difference. First operand 251 states and 383 transitions. Second operand has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 5 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) [2022-01-31 22:44:11,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:44:11,345 INFO L93 Difference]: Finished difference Result 485 states and 748 transitions. [2022-01-31 22:44:11,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-31 22:44:11,346 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 5 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 81 [2022-01-31 22:44:11,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:44:11,347 INFO L225 Difference]: With dead ends: 485 [2022-01-31 22:44:11,347 INFO L226 Difference]: Without dead ends: 260 [2022-01-31 22:44:11,347 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-01-31 22:44:11,347 INFO L933 BasicCegarLoop]: 207 mSDtfsCounter, 3 mSDsluCounter, 442 mSDsCounter, 0 mSdLazyCounter, 440 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 649 SdHoareTripleChecker+Invalid, 444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 440 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-01-31 22:44:11,348 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 649 Invalid, 444 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 440 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-01-31 22:44:11,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2022-01-31 22:44:11,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 260. [2022-01-31 22:44:11,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 260 states, 255 states have (on average 1.5294117647058822) internal successors, (390), 255 states have internal predecessors, (390), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:44:11,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 394 transitions. [2022-01-31 22:44:11,354 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 394 transitions. Word has length 81 [2022-01-31 22:44:11,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:44:11,355 INFO L470 AbstractCegarLoop]: Abstraction has 260 states and 394 transitions. [2022-01-31 22:44:11,355 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 5 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) [2022-01-31 22:44:11,355 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 394 transitions. [2022-01-31 22:44:11,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-01-31 22:44:11,355 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:44:11,356 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:44:11,356 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-31 22:44:11,356 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:44:11,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:44:11,356 INFO L85 PathProgramCache]: Analyzing trace with hash 500570481, now seen corresponding path program 1 times [2022-01-31 22:44:11,356 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:44:11,356 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1727291585] [2022-01-31 22:44:11,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:44:11,368 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:44:11,368 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:44:11,368 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:44:11,372 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:44:11,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:44:11,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:44:11,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:44:11,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:44:11,440 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:44:11,440 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1727291585] [2022-01-31 22:44:11,440 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1727291585] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:44:11,440 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:44:11,440 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 22:44:11,440 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888334648] [2022-01-31 22:44:11,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:44:11,441 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 22:44:11,441 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:44:11,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 22:44:11,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 22:44:11,441 INFO L87 Difference]: Start difference. First operand 260 states and 394 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) [2022-01-31 22:44:13,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:44:13,638 INFO L93 Difference]: Finished difference Result 605 states and 927 transitions. [2022-01-31 22:44:13,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 22:44:13,639 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 [2022-01-31 22:44:13,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:44:13,640 INFO L225 Difference]: With dead ends: 605 [2022-01-31 22:44:13,640 INFO L226 Difference]: Without dead ends: 371 [2022-01-31 22:44:13,641 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 [2022-01-31 22:44:13,641 INFO L933 BasicCegarLoop]: 123 mSDtfsCounter, 150 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 480 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 358 SdHoareTripleChecker+Invalid, 543 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 480 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-01-31 22:44:13,641 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [150 Valid, 358 Invalid, 543 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 480 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-01-31 22:44:13,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states. [2022-01-31 22:44:13,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 260. [2022-01-31 22:44:13,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 260 states, 255 states have (on average 1.5137254901960784) internal successors, (386), 255 states have internal predecessors, (386), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:44:13,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 390 transitions. [2022-01-31 22:44:13,650 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 390 transitions. Word has length 83 [2022-01-31 22:44:13,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:44:13,651 INFO L470 AbstractCegarLoop]: Abstraction has 260 states and 390 transitions. [2022-01-31 22:44:13,651 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) [2022-01-31 22:44:13,651 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 390 transitions. [2022-01-31 22:44:13,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-01-31 22:44:13,651 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:44:13,651 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] [2022-01-31 22:44:13,651 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-31 22:44:13,652 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:44:13,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:44:13,652 INFO L85 PathProgramCache]: Analyzing trace with hash -1953945932, now seen corresponding path program 1 times [2022-01-31 22:44:13,652 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:44:13,652 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1120059761] [2022-01-31 22:44:13,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:44:13,664 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:44:13,664 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:44:13,665 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:44:13,668 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:44:13,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:44:13,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:44:13,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:44:13,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:44:13,750 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:44:13,750 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1120059761] [2022-01-31 22:44:13,750 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1120059761] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:44:13,750 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:44:13,750 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 22:44:13,750 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035343667] [2022-01-31 22:44:13,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:44:13,751 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 22:44:13,751 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:44:13,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 22:44:13,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 22:44:13,751 INFO L87 Difference]: Start difference. First operand 260 states and 390 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:44:15,394 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 22:44:17,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:44:17,131 INFO L93 Difference]: Finished difference Result 511 states and 772 transitions. [2022-01-31 22:44:17,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 22:44:17,131 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 84 [2022-01-31 22:44:17,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:44:17,132 INFO L225 Difference]: With dead ends: 511 [2022-01-31 22:44:17,133 INFO L226 Difference]: Without dead ends: 277 [2022-01-31 22:44:17,133 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 [2022-01-31 22:44:17,133 INFO L933 BasicCegarLoop]: 203 mSDtfsCounter, 33 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 393 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 523 SdHoareTripleChecker+Invalid, 403 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 393 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-01-31 22:44:17,134 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 523 Invalid, 403 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 393 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-01-31 22:44:17,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2022-01-31 22:44:17,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 260. [2022-01-31 22:44:17,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 260 states, 255 states have (on average 1.5098039215686274) internal successors, (385), 255 states have internal predecessors, (385), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:44:17,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 389 transitions. [2022-01-31 22:44:17,142 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 389 transitions. Word has length 84 [2022-01-31 22:44:17,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:44:17,142 INFO L470 AbstractCegarLoop]: Abstraction has 260 states and 389 transitions. [2022-01-31 22:44:17,142 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:44:17,142 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 389 transitions. [2022-01-31 22:44:17,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-01-31 22:44:17,142 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:44:17,143 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] [2022-01-31 22:44:17,143 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-31 22:44:17,143 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:44:17,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:44:17,143 INFO L85 PathProgramCache]: Analyzing trace with hash -1278861732, now seen corresponding path program 1 times [2022-01-31 22:44:17,143 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:44:17,143 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [390254442] [2022-01-31 22:44:17,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:44:17,157 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:44:17,157 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:44:17,158 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:44:17,161 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:44:17,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:44:17,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:44:17,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:44:17,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:44:17,239 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:44:17,239 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [390254442] [2022-01-31 22:44:17,239 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [390254442] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:44:17,239 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:44:17,239 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 22:44:17,239 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974126841] [2022-01-31 22:44:17,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:44:17,240 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 22:44:17,240 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:44:17,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 22:44:17,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 22:44:17,240 INFO L87 Difference]: Start difference. First operand 260 states and 389 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) [2022-01-31 22:44:20,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:44:20,352 INFO L93 Difference]: Finished difference Result 605 states and 914 transitions. [2022-01-31 22:44:20,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 22:44:20,352 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 88 [2022-01-31 22:44:20,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:44:20,353 INFO L225 Difference]: With dead ends: 605 [2022-01-31 22:44:20,353 INFO L226 Difference]: Without dead ends: 371 [2022-01-31 22:44:20,354 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 [2022-01-31 22:44:20,354 INFO L933 BasicCegarLoop]: 197 mSDtfsCounter, 87 mSDsluCounter, 316 mSDsCounter, 0 mSdLazyCounter, 543 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 513 SdHoareTripleChecker+Invalid, 558 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 543 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-01-31 22:44:20,354 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [87 Valid, 513 Invalid, 558 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 543 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-01-31 22:44:20,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states. [2022-01-31 22:44:20,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 302. [2022-01-31 22:44:20,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 302 states, 297 states have (on average 1.531986531986532) internal successors, (455), 297 states have internal predecessors, (455), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:44:20,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 459 transitions. [2022-01-31 22:44:20,364 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 459 transitions. Word has length 88 [2022-01-31 22:44:20,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:44:20,364 INFO L470 AbstractCegarLoop]: Abstraction has 302 states and 459 transitions. [2022-01-31 22:44:20,364 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) [2022-01-31 22:44:20,364 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 459 transitions. [2022-01-31 22:44:20,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-01-31 22:44:20,365 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:44:20,365 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] [2022-01-31 22:44:20,365 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-31 22:44:20,365 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:44:20,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:44:20,365 INFO L85 PathProgramCache]: Analyzing trace with hash 1644298266, now seen corresponding path program 1 times [2022-01-31 22:44:20,365 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:44:20,366 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1634444661] [2022-01-31 22:44:20,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:44:20,374 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:44:20,374 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:44:20,374 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:44:20,379 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:44:20,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:44:20,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:44:20,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:44:20,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:44:20,448 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:44:20,448 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1634444661] [2022-01-31 22:44:20,448 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1634444661] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:44:20,448 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:44:20,448 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 22:44:20,448 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25513836] [2022-01-31 22:44:20,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:44:20,448 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 22:44:20,448 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:44:20,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 22:44:20,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 22:44:20,449 INFO L87 Difference]: Start difference. First operand 302 states and 459 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) [2022-01-31 22:44:23,371 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 22:44:25,390 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 22:44:26,915 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 22:44:27,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:44:27,320 INFO L93 Difference]: Finished difference Result 636 states and 970 transitions. [2022-01-31 22:44:27,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 22:44:27,320 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 88 [2022-01-31 22:44:27,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:44:27,321 INFO L225 Difference]: With dead ends: 636 [2022-01-31 22:44:27,322 INFO L226 Difference]: Without dead ends: 360 [2022-01-31 22:44:27,322 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 [2022-01-31 22:44:27,322 INFO L933 BasicCegarLoop]: 250 mSDtfsCounter, 37 mSDsluCounter, 367 mSDsCounter, 0 mSdLazyCounter, 471 mSolverCounterSat, 11 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 617 SdHoareTripleChecker+Invalid, 484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 471 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2022-01-31 22:44:27,323 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 617 Invalid, 484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 471 Invalid, 2 Unknown, 0 Unchecked, 6.8s Time] [2022-01-31 22:44:27,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2022-01-31 22:44:27,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 326. [2022-01-31 22:44:27,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 326 states, 321 states have (on average 1.5327102803738317) internal successors, (492), 321 states have internal predecessors, (492), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:44:27,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 496 transitions. [2022-01-31 22:44:27,333 INFO L78 Accepts]: Start accepts. Automaton has 326 states and 496 transitions. Word has length 88 [2022-01-31 22:44:27,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:44:27,333 INFO L470 AbstractCegarLoop]: Abstraction has 326 states and 496 transitions. [2022-01-31 22:44:27,333 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) [2022-01-31 22:44:27,334 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states and 496 transitions. [2022-01-31 22:44:27,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-01-31 22:44:27,334 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:44:27,334 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 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] [2022-01-31 22:44:27,334 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-01-31 22:44:27,334 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:44:27,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:44:27,335 INFO L85 PathProgramCache]: Analyzing trace with hash -409560077, now seen corresponding path program 1 times [2022-01-31 22:44:27,335 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:44:27,335 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1540239856] [2022-01-31 22:44:27,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:44:27,350 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:44:27,350 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:44:27,350 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:44:27,354 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:44:27,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:44:27,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:44:27,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:44:27,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:44:27,447 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:44:27,448 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1540239856] [2022-01-31 22:44:27,448 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1540239856] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:44:27,448 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:44:27,448 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 22:44:27,448 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212126380] [2022-01-31 22:44:27,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:44:27,450 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 22:44:27,450 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:44:27,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 22:44:27,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 22:44:27,450 INFO L87 Difference]: Start difference. First operand 326 states and 496 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) [2022-01-31 22:44:28,486 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 [] [2022-01-31 22:44:31,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:44:31,041 INFO L93 Difference]: Finished difference Result 727 states and 1119 transitions. [2022-01-31 22:44:31,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 22:44:31,041 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 93 [2022-01-31 22:44:31,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:44:31,043 INFO L225 Difference]: With dead ends: 727 [2022-01-31 22:44:31,043 INFO L226 Difference]: Without dead ends: 427 [2022-01-31 22:44:31,044 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 [2022-01-31 22:44:31,044 INFO L933 BasicCegarLoop]: 124 mSDtfsCounter, 152 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 478 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 478 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-01-31 22:44:31,044 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [152 Valid, 360 Invalid, 540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 478 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-01-31 22:44:31,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2022-01-31 22:44:31,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 326. [2022-01-31 22:44:31,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 326 states, 321 states have (on average 1.514018691588785) internal successors, (486), 321 states have internal predecessors, (486), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:44:31,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 490 transitions. [2022-01-31 22:44:31,055 INFO L78 Accepts]: Start accepts. Automaton has 326 states and 490 transitions. Word has length 93 [2022-01-31 22:44:31,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:44:31,055 INFO L470 AbstractCegarLoop]: Abstraction has 326 states and 490 transitions. [2022-01-31 22:44:31,055 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) [2022-01-31 22:44:31,055 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states and 490 transitions. [2022-01-31 22:44:31,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-31 22:44:31,056 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:44:31,056 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] [2022-01-31 22:44:31,056 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-01-31 22:44:31,056 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:44:31,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:44:31,057 INFO L85 PathProgramCache]: Analyzing trace with hash 781004590, now seen corresponding path program 1 times [2022-01-31 22:44:31,057 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:44:31,057 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1724999648] [2022-01-31 22:44:31,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:44:31,069 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:44:31,069 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:44:31,069 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:44:31,073 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:44:31,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:44:31,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:44:31,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:44:31,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:44:31,148 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:44:31,148 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1724999648] [2022-01-31 22:44:31,148 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1724999648] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:44:31,148 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:44:31,148 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 22:44:31,148 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795081203] [2022-01-31 22:44:31,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:44:31,148 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 22:44:31,149 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:44:31,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 22:44:31,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 22:44:31,149 INFO L87 Difference]: Start difference. First operand 326 states and 490 transitions. Second operand has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:44:33,171 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 22:44:35,244 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 22:44:35,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:44:35,633 INFO L93 Difference]: Finished difference Result 725 states and 1105 transitions. [2022-01-31 22:44:35,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 22:44:35,634 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 101 [2022-01-31 22:44:35,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:44:35,635 INFO L225 Difference]: With dead ends: 725 [2022-01-31 22:44:35,635 INFO L226 Difference]: Without dead ends: 425 [2022-01-31 22:44:35,636 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 [2022-01-31 22:44:35,636 INFO L933 BasicCegarLoop]: 126 mSDtfsCounter, 146 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 475 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 364 SdHoareTripleChecker+Invalid, 532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 475 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-01-31 22:44:35,636 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [146 Valid, 364 Invalid, 532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 475 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2022-01-31 22:44:35,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 425 states. [2022-01-31 22:44:35,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 425 to 326. [2022-01-31 22:44:35,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 326 states, 321 states have (on average 1.5015576323987538) internal successors, (482), 321 states have internal predecessors, (482), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:44:35,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 486 transitions. [2022-01-31 22:44:35,647 INFO L78 Accepts]: Start accepts. Automaton has 326 states and 486 transitions. Word has length 101 [2022-01-31 22:44:35,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:44:35,647 INFO L470 AbstractCegarLoop]: Abstraction has 326 states and 486 transitions. [2022-01-31 22:44:35,648 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:44:35,648 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states and 486 transitions. [2022-01-31 22:44:35,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-31 22:44:35,648 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:44:35,648 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:44:35,649 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-01-31 22:44:35,649 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:44:35,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:44:35,649 INFO L85 PathProgramCache]: Analyzing trace with hash 106258255, now seen corresponding path program 1 times [2022-01-31 22:44:35,649 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:44:35,649 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [423578844] [2022-01-31 22:44:35,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:44:35,667 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:44:35,667 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:44:35,667 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:44:35,671 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:44:35,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:44:35,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:44:35,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:44:35,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:44:35,748 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:44:35,748 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [423578844] [2022-01-31 22:44:35,748 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [423578844] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:44:35,748 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:44:35,748 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 22:44:35,748 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062829464] [2022-01-31 22:44:35,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:44:35,749 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 22:44:35,749 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:44:35,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 22:44:35,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 22:44:35,749 INFO L87 Difference]: Start difference. First operand 326 states and 486 transitions. Second operand has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:44:36,824 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 22:44:38,511 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 22:44:39,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:44:39,358 INFO L93 Difference]: Finished difference Result 717 states and 1086 transitions. [2022-01-31 22:44:39,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 22:44:39,358 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 106 [2022-01-31 22:44:39,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:44:39,359 INFO L225 Difference]: With dead ends: 717 [2022-01-31 22:44:39,368 INFO L226 Difference]: Without dead ends: 417 [2022-01-31 22:44:39,369 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 [2022-01-31 22:44:39,369 INFO L933 BasicCegarLoop]: 134 mSDtfsCounter, 140 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 467 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 521 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 467 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-01-31 22:44:39,370 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [140 Valid, 380 Invalid, 521 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 467 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-01-31 22:44:39,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states. [2022-01-31 22:44:39,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 326. [2022-01-31 22:44:39,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 326 states, 321 states have (on average 1.485981308411215) internal successors, (477), 321 states have internal predecessors, (477), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:44:39,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 481 transitions. [2022-01-31 22:44:39,381 INFO L78 Accepts]: Start accepts. Automaton has 326 states and 481 transitions. Word has length 106 [2022-01-31 22:44:39,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:44:39,381 INFO L470 AbstractCegarLoop]: Abstraction has 326 states and 481 transitions. [2022-01-31 22:44:39,381 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:44:39,381 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states and 481 transitions. [2022-01-31 22:44:39,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-01-31 22:44:39,382 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:44:39,382 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] [2022-01-31 22:44:39,382 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-01-31 22:44:39,383 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:44:39,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:44:39,383 INFO L85 PathProgramCache]: Analyzing trace with hash 56700649, now seen corresponding path program 1 times [2022-01-31 22:44:39,383 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:44:39,383 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1717725592] [2022-01-31 22:44:39,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:44:39,396 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:44:39,397 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:44:39,397 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:44:39,401 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:44:39,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:44:39,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:44:39,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:44:39,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:44:39,477 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:44:39,477 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1717725592] [2022-01-31 22:44:39,477 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1717725592] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:44:39,478 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:44:39,478 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 22:44:39,478 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757306517] [2022-01-31 22:44:39,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:44:39,478 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 22:44:39,478 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:44:39,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 22:44:39,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 22:44:39,478 INFO L87 Difference]: Start difference. First operand 326 states and 481 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:44:42,811 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 [] [2022-01-31 22:44:43,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:44:43,194 INFO L93 Difference]: Finished difference Result 717 states and 1076 transitions. [2022-01-31 22:44:43,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 22:44:43,195 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 110 [2022-01-31 22:44:43,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:44:43,196 INFO L225 Difference]: With dead ends: 717 [2022-01-31 22:44:43,196 INFO L226 Difference]: Without dead ends: 417 [2022-01-31 22:44:43,197 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 [2022-01-31 22:44:43,197 INFO L933 BasicCegarLoop]: 141 mSDtfsCounter, 130 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 476 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 394 SdHoareTripleChecker+Invalid, 527 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 476 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-01-31 22:44:43,197 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [130 Valid, 394 Invalid, 527 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 476 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-01-31 22:44:43,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states. [2022-01-31 22:44:43,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 332. [2022-01-31 22:44:43,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 332 states, 327 states have (on average 1.4862385321100917) internal successors, (486), 327 states have internal predecessors, (486), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:44:43,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 490 transitions. [2022-01-31 22:44:43,209 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 490 transitions. Word has length 110 [2022-01-31 22:44:43,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:44:43,209 INFO L470 AbstractCegarLoop]: Abstraction has 332 states and 490 transitions. [2022-01-31 22:44:43,209 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:44:43,209 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 490 transitions. [2022-01-31 22:44:43,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-01-31 22:44:43,210 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:44:43,210 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] [2022-01-31 22:44:43,210 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-01-31 22:44:43,210 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:44:43,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:44:43,211 INFO L85 PathProgramCache]: Analyzing trace with hash 735972903, now seen corresponding path program 1 times [2022-01-31 22:44:43,211 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:44:43,211 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1243157876] [2022-01-31 22:44:43,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:44:43,223 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:44:43,224 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:44:43,224 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:44:43,234 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:44:43,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:44:43,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:44:43,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:44:43,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:44:43,308 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:44:43,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1243157876] [2022-01-31 22:44:43,308 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1243157876] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:44:43,308 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:44:43,308 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 22:44:43,308 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713291053] [2022-01-31 22:44:43,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:44:43,309 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 22:44:43,309 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:44:43,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 22:44:43,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 22:44:43,309 INFO L87 Difference]: Start difference. First operand 332 states and 490 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:44:44,606 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 22:44:45,700 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 22:44:47,099 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 22:44:48,507 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 22:44:48,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:44:48,896 INFO L93 Difference]: Finished difference Result 723 states and 1082 transitions. [2022-01-31 22:44:48,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 22:44:48,897 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 110 [2022-01-31 22:44:48,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:44:48,898 INFO L225 Difference]: With dead ends: 723 [2022-01-31 22:44:48,898 INFO L226 Difference]: Without dead ends: 417 [2022-01-31 22:44:48,899 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 [2022-01-31 22:44:48,899 INFO L933 BasicCegarLoop]: 141 mSDtfsCounter, 114 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 474 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 394 SdHoareTripleChecker+Invalid, 527 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 474 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-01-31 22:44:48,899 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [114 Valid, 394 Invalid, 527 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 474 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2022-01-31 22:44:48,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states. [2022-01-31 22:44:48,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 307. [2022-01-31 22:44:48,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 307 states, 302 states have (on average 1.4966887417218544) internal successors, (452), 302 states have internal predecessors, (452), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:44:48,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 456 transitions. [2022-01-31 22:44:48,911 INFO L78 Accepts]: Start accepts. Automaton has 307 states and 456 transitions. Word has length 110 [2022-01-31 22:44:48,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:44:48,911 INFO L470 AbstractCegarLoop]: Abstraction has 307 states and 456 transitions. [2022-01-31 22:44:48,911 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:44:48,912 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 456 transitions. [2022-01-31 22:44:48,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-01-31 22:44:48,912 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:44:48,912 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:44:48,912 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-01-31 22:44:48,913 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:44:48,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:44:48,913 INFO L85 PathProgramCache]: Analyzing trace with hash 1655258289, now seen corresponding path program 1 times [2022-01-31 22:44:48,913 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:44:48,913 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [127239050] [2022-01-31 22:44:48,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:44:48,926 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:44:48,927 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:44:48,927 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:44:48,931 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:44:48,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:44:49,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:44:49,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:44:49,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:44:49,022 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:44:49,022 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [127239050] [2022-01-31 22:44:49,022 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [127239050] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:44:49,022 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:44:49,022 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 22:44:49,022 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975171182] [2022-01-31 22:44:49,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:44:49,023 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 22:44:49,023 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:44:49,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 22:44:49,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 22:44:49,023 INFO L87 Difference]: Start difference. First operand 307 states and 456 transitions. Second operand has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:44:50,286 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 [] [2022-01-31 22:44:52,074 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 22:44:54,089 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 22:44:54,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:44:54,505 INFO L93 Difference]: Finished difference Result 673 states and 1011 transitions. [2022-01-31 22:44:54,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 22:44:54,506 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 116 [2022-01-31 22:44:54,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:44:54,507 INFO L225 Difference]: With dead ends: 673 [2022-01-31 22:44:54,507 INFO L226 Difference]: Without dead ends: 392 [2022-01-31 22:44:54,508 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 [2022-01-31 22:44:54,508 INFO L933 BasicCegarLoop]: 198 mSDtfsCounter, 82 mSDsluCounter, 317 mSDsCounter, 0 mSdLazyCounter, 502 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 515 SdHoareTripleChecker+Invalid, 510 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 502 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-01-31 22:44:54,509 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [82 Valid, 515 Invalid, 510 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 502 Invalid, 1 Unknown, 0 Unchecked, 5.4s Time] [2022-01-31 22:44:54,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 392 states. [2022-01-31 22:44:54,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 392 to 340. [2022-01-31 22:44:54,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 340 states, 335 states have (on average 1.498507462686567) internal successors, (502), 335 states have internal predecessors, (502), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:44:54,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 506 transitions. [2022-01-31 22:44:54,523 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 506 transitions. Word has length 116 [2022-01-31 22:44:54,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:44:54,523 INFO L470 AbstractCegarLoop]: Abstraction has 340 states and 506 transitions. [2022-01-31 22:44:54,523 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:44:54,523 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 506 transitions. [2022-01-31 22:44:54,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-01-31 22:44:54,524 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:44:54,524 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:44:54,524 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-01-31 22:44:54,524 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:44:54,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:44:54,524 INFO L85 PathProgramCache]: Analyzing trace with hash 1085303227, now seen corresponding path program 1 times [2022-01-31 22:44:54,524 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:44:54,525 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [438855473] [2022-01-31 22:44:54,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:44:54,541 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:44:54,542 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:44:54,542 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:44:54,547 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:44:54,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:44:54,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:44:54,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:44:54,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:44:54,633 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:44:54,633 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [438855473] [2022-01-31 22:44:54,633 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [438855473] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:44:54,633 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:44:54,633 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 22:44:54,633 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486592957] [2022-01-31 22:44:54,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:44:54,633 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 22:44:54,633 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:44:54,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 22:44:54,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 22:44:54,635 INFO L87 Difference]: Start difference. First operand 340 states and 506 transitions. Second operand has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:44:56,491 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 [] [2022-01-31 22:44:57,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:44:57,709 INFO L93 Difference]: Finished difference Result 706 states and 1060 transitions. [2022-01-31 22:44:57,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 22:44:57,710 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 122 [2022-01-31 22:44:57,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:44:57,711 INFO L225 Difference]: With dead ends: 706 [2022-01-31 22:44:57,711 INFO L226 Difference]: Without dead ends: 392 [2022-01-31 22:44:57,712 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 [2022-01-31 22:44:57,712 INFO L933 BasicCegarLoop]: 198 mSDtfsCounter, 76 mSDsluCounter, 317 mSDsCounter, 0 mSdLazyCounter, 503 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 515 SdHoareTripleChecker+Invalid, 510 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 503 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-01-31 22:44:57,712 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [76 Valid, 515 Invalid, 510 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 503 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-01-31 22:44:57,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 392 states. [2022-01-31 22:44:57,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 392 to 345. [2022-01-31 22:44:57,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 345 states, 340 states have (on average 1.5029411764705882) internal successors, (511), 340 states have internal predecessors, (511), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:44:57,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 515 transitions. [2022-01-31 22:44:57,725 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 515 transitions. Word has length 122 [2022-01-31 22:44:57,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:44:57,726 INFO L470 AbstractCegarLoop]: Abstraction has 345 states and 515 transitions. [2022-01-31 22:44:57,726 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:44:57,726 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 515 transitions. [2022-01-31 22:44:57,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-01-31 22:44:57,727 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:44:57,727 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:44:57,727 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-01-31 22:44:57,727 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:44:57,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:44:57,727 INFO L85 PathProgramCache]: Analyzing trace with hash 1777360167, now seen corresponding path program 1 times [2022-01-31 22:44:57,727 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:44:57,727 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1658025841] [2022-01-31 22:44:57,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:44:57,744 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:44:57,744 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:44:57,744 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:44:57,749 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:44:57,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:44:57,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:44:57,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:44:57,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:44:57,824 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:44:57,824 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1658025841] [2022-01-31 22:44:57,824 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1658025841] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:44:57,824 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:44:57,824 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 22:44:57,824 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368070926] [2022-01-31 22:44:57,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:44:57,824 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 22:44:57,825 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:44:57,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 22:44:57,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 22:44:57,825 INFO L87 Difference]: Start difference. First operand 345 states and 515 transitions. Second operand has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:44:59,496 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 22:45:01,352 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 22:45:03,368 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 22:45:03,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:45:03,777 INFO L93 Difference]: Finished difference Result 708 states and 1064 transitions. [2022-01-31 22:45:03,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 22:45:03,778 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 123 [2022-01-31 22:45:03,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:45:03,779 INFO L225 Difference]: With dead ends: 708 [2022-01-31 22:45:03,779 INFO L226 Difference]: Without dead ends: 389 [2022-01-31 22:45:03,780 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 [2022-01-31 22:45:03,780 INFO L933 BasicCegarLoop]: 199 mSDtfsCounter, 71 mSDsluCounter, 318 mSDsCounter, 0 mSdLazyCounter, 500 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 517 SdHoareTripleChecker+Invalid, 508 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 500 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-01-31 22:45:03,780 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [71 Valid, 517 Invalid, 508 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 500 Invalid, 1 Unknown, 0 Unchecked, 5.9s Time] [2022-01-31 22:45:03,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states. [2022-01-31 22:45:03,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 346. [2022-01-31 22:45:03,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 346 states, 341 states have (on average 1.501466275659824) internal successors, (512), 341 states have internal predecessors, (512), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:45:03,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 516 transitions. [2022-01-31 22:45:03,794 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 516 transitions. Word has length 123 [2022-01-31 22:45:03,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:45:03,794 INFO L470 AbstractCegarLoop]: Abstraction has 346 states and 516 transitions. [2022-01-31 22:45:03,794 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:45:03,794 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 516 transitions. [2022-01-31 22:45:03,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-31 22:45:03,795 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:45:03,795 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] [2022-01-31 22:45:03,795 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-01-31 22:45:03,795 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:45:03,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:45:03,796 INFO L85 PathProgramCache]: Analyzing trace with hash -371331922, now seen corresponding path program 1 times [2022-01-31 22:45:03,796 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:45:03,796 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1630503029] [2022-01-31 22:45:03,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:45:03,818 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:45:03,819 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:45:03,819 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:45:03,824 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:45:03,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:45:03,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:45:03,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:45:03,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:45:03,900 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:45:03,900 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1630503029] [2022-01-31 22:45:03,900 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1630503029] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:45:03,900 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:45:03,900 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 22:45:03,900 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023711982] [2022-01-31 22:45:03,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:45:03,901 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 22:45:03,901 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:45:03,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 22:45:03,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 22:45:03,901 INFO L87 Difference]: Start difference. First operand 346 states and 516 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) [2022-01-31 22:45:07,155 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 [] [2022-01-31 22:45:08,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:45:08,069 INFO L93 Difference]: Finished difference Result 703 states and 1055 transitions. [2022-01-31 22:45:08,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 22:45:08,069 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 4 states have internal predecessors, (116), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 130 [2022-01-31 22:45:08,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:45:08,070 INFO L225 Difference]: With dead ends: 703 [2022-01-31 22:45:08,070 INFO L226 Difference]: Without dead ends: 383 [2022-01-31 22:45:08,071 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 [2022-01-31 22:45:08,071 INFO L933 BasicCegarLoop]: 202 mSDtfsCounter, 59 mSDsluCounter, 321 mSDsCounter, 0 mSdLazyCounter, 494 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 523 SdHoareTripleChecker+Invalid, 502 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 494 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-01-31 22:45:08,071 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [59 Valid, 523 Invalid, 502 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 494 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2022-01-31 22:45:08,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 383 states. [2022-01-31 22:45:08,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 383 to 349. [2022-01-31 22:45:08,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 349 states, 344 states have (on average 1.497093023255814) internal successors, (515), 344 states have internal predecessors, (515), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:45:08,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 519 transitions. [2022-01-31 22:45:08,085 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 519 transitions. Word has length 130 [2022-01-31 22:45:08,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:45:08,085 INFO L470 AbstractCegarLoop]: Abstraction has 349 states and 519 transitions. [2022-01-31 22:45:08,085 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) [2022-01-31 22:45:08,085 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 519 transitions. [2022-01-31 22:45:08,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2022-01-31 22:45:08,086 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:45:08,086 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:45:08,086 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-01-31 22:45:08,086 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:45:08,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:45:08,087 INFO L85 PathProgramCache]: Analyzing trace with hash -1158750724, now seen corresponding path program 1 times [2022-01-31 22:45:08,087 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:45:08,087 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1328355929] [2022-01-31 22:45:08,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:45:08,105 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:45:08,105 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:45:08,105 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:45:08,110 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:45:08,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:45:08,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:45:08,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:45:08,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:45:08,190 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:45:08,190 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1328355929] [2022-01-31 22:45:08,190 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1328355929] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:45:08,190 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:45:08,190 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 22:45:08,190 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029235226] [2022-01-31 22:45:08,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:45:08,191 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 22:45:08,192 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:45:08,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 22:45:08,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 22:45:08,192 INFO L87 Difference]: Start difference. First operand 349 states and 519 transitions. Second operand has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:45:10,490 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 [] [2022-01-31 22:45:12,455 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 22:45:12,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:45:12,801 INFO L93 Difference]: Finished difference Result 712 states and 1066 transitions. [2022-01-31 22:45:12,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 22:45:12,802 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 138 [2022-01-31 22:45:12,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:45:12,803 INFO L225 Difference]: With dead ends: 712 [2022-01-31 22:45:12,803 INFO L226 Difference]: Without dead ends: 389 [2022-01-31 22:45:12,804 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 [2022-01-31 22:45:12,804 INFO L933 BasicCegarLoop]: 242 mSDtfsCounter, 29 mSDsluCounter, 359 mSDsCounter, 0 mSdLazyCounter, 445 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 601 SdHoareTripleChecker+Invalid, 451 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 445 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-01-31 22:45:12,804 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [29 Valid, 601 Invalid, 451 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 445 Invalid, 1 Unknown, 0 Unchecked, 4.6s Time] [2022-01-31 22:45:12,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states. [2022-01-31 22:45:12,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 375. [2022-01-31 22:45:12,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 375 states, 370 states have (on average 1.491891891891892) internal successors, (552), 370 states have internal predecessors, (552), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:45:12,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 556 transitions. [2022-01-31 22:45:12,843 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 556 transitions. Word has length 138 [2022-01-31 22:45:12,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:45:12,844 INFO L470 AbstractCegarLoop]: Abstraction has 375 states and 556 transitions. [2022-01-31 22:45:12,844 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:45:12,844 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 556 transitions. [2022-01-31 22:45:12,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-01-31 22:45:12,844 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:45:12,845 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:45:12,845 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-01-31 22:45:12,845 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:45:12,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:45:12,845 INFO L85 PathProgramCache]: Analyzing trace with hash -30003002, now seen corresponding path program 1 times [2022-01-31 22:45:12,845 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:45:12,845 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [456073573] [2022-01-31 22:45:12,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:45:12,864 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:45:12,864 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:45:12,864 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:45:12,870 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:45:12,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:45:12,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:45:12,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:45:12,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:45:12,949 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:45:12,949 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [456073573] [2022-01-31 22:45:12,949 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [456073573] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:45:12,949 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:45:12,949 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 22:45:12,949 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965110262] [2022-01-31 22:45:12,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:45:12,950 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 22:45:12,950 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:45:12,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 22:45:12,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 22:45:12,950 INFO L87 Difference]: Start difference. First operand 375 states and 556 transitions. Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:45:14,110 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 [] [2022-01-31 22:45:15,534 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 [] [2022-01-31 22:45:16,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:45:16,400 INFO L93 Difference]: Finished difference Result 758 states and 1131 transitions. [2022-01-31 22:45:16,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 22:45:16,400 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 141 [2022-01-31 22:45:16,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:45:16,402 INFO L225 Difference]: With dead ends: 758 [2022-01-31 22:45:16,402 INFO L226 Difference]: Without dead ends: 409 [2022-01-31 22:45:16,402 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 [2022-01-31 22:45:16,403 INFO L933 BasicCegarLoop]: 203 mSDtfsCounter, 71 mSDsluCounter, 322 mSDsCounter, 0 mSdLazyCounter, 493 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 525 SdHoareTripleChecker+Invalid, 500 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 493 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-01-31 22:45:16,403 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [71 Valid, 525 Invalid, 500 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 493 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-01-31 22:45:16,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states. [2022-01-31 22:45:16,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 375. [2022-01-31 22:45:16,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 375 states, 370 states have (on average 1.4891891891891893) internal successors, (551), 370 states have internal predecessors, (551), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:45:16,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 555 transitions. [2022-01-31 22:45:16,429 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 555 transitions. Word has length 141 [2022-01-31 22:45:16,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:45:16,429 INFO L470 AbstractCegarLoop]: Abstraction has 375 states and 555 transitions. [2022-01-31 22:45:16,429 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:45:16,429 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 555 transitions. [2022-01-31 22:45:16,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-01-31 22:45:16,430 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:45:16,430 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:45:16,430 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-01-31 22:45:16,430 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:45:16,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:45:16,431 INFO L85 PathProgramCache]: Analyzing trace with hash 2071429759, now seen corresponding path program 1 times [2022-01-31 22:45:16,431 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:45:16,431 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [355420870] [2022-01-31 22:45:16,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:45:16,450 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:45:16,450 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:45:16,450 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:45:16,457 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:45:16,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:45:16,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:45:16,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:45:16,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:45:16,535 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:45:16,536 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [355420870] [2022-01-31 22:45:16,536 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [355420870] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:45:16,536 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:45:16,536 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 22:45:16,536 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943835978] [2022-01-31 22:45:16,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:45:16,536 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 22:45:16,536 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:45:16,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 22:45:16,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 22:45:16,537 INFO L87 Difference]: Start difference. First operand 375 states and 555 transitions. Second operand has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:45:19,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:45:19,045 INFO L93 Difference]: Finished difference Result 793 states and 1180 transitions. [2022-01-31 22:45:19,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 22:45:19,046 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 142 [2022-01-31 22:45:19,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:45:19,047 INFO L225 Difference]: With dead ends: 793 [2022-01-31 22:45:19,047 INFO L226 Difference]: Without dead ends: 444 [2022-01-31 22:45:19,048 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 [2022-01-31 22:45:19,048 INFO L933 BasicCegarLoop]: 141 mSDtfsCounter, 124 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 474 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 394 SdHoareTripleChecker+Invalid, 526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 474 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-01-31 22:45:19,048 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [124 Valid, 394 Invalid, 526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 474 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-01-31 22:45:19,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 444 states. [2022-01-31 22:45:19,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 444 to 375. [2022-01-31 22:45:19,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 375 states, 370 states have (on average 1.481081081081081) internal successors, (548), 370 states have internal predecessors, (548), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:45:19,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 552 transitions. [2022-01-31 22:45:19,074 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 552 transitions. Word has length 142 [2022-01-31 22:45:19,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:45:19,074 INFO L470 AbstractCegarLoop]: Abstraction has 375 states and 552 transitions. [2022-01-31 22:45:19,075 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:45:19,075 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 552 transitions. [2022-01-31 22:45:19,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-01-31 22:45:19,075 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:45:19,075 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:45:19,076 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-01-31 22:45:19,076 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:45:19,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:45:19,076 INFO L85 PathProgramCache]: Analyzing trace with hash -1168543706, now seen corresponding path program 1 times [2022-01-31 22:45:19,076 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:45:19,076 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1854610685] [2022-01-31 22:45:19,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:45:19,106 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:45:19,106 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:45:19,107 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:45:19,113 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:45:19,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:45:19,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:45:19,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:45:19,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:45:19,190 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:45:19,191 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1854610685] [2022-01-31 22:45:19,191 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1854610685] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:45:19,191 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:45:19,191 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 22:45:19,191 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464472878] [2022-01-31 22:45:19,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:45:19,191 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 22:45:19,191 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:45:19,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 22:45:19,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 22:45:19,192 INFO L87 Difference]: Start difference. First operand 375 states and 552 transitions. Second operand has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:45:20,680 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 22:45:22,698 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 [] [2022-01-31 22:45:23,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:45:23,710 INFO L93 Difference]: Finished difference Result 750 states and 1110 transitions. [2022-01-31 22:45:23,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 22:45:23,710 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 143 [2022-01-31 22:45:23,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:45:23,711 INFO L225 Difference]: With dead ends: 750 [2022-01-31 22:45:23,711 INFO L226 Difference]: Without dead ends: 401 [2022-01-31 22:45:23,712 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 [2022-01-31 22:45:23,712 INFO L933 BasicCegarLoop]: 212 mSDtfsCounter, 58 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 474 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 543 SdHoareTripleChecker+Invalid, 482 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 474 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-01-31 22:45:23,713 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [58 Valid, 543 Invalid, 482 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 474 Invalid, 1 Unknown, 0 Unchecked, 4.5s Time] [2022-01-31 22:45:23,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2022-01-31 22:45:23,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 375. [2022-01-31 22:45:23,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 375 states, 370 states have (on average 1.4783783783783784) internal successors, (547), 370 states have internal predecessors, (547), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:45:23,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 551 transitions. [2022-01-31 22:45:23,728 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 551 transitions. Word has length 143 [2022-01-31 22:45:23,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:45:23,728 INFO L470 AbstractCegarLoop]: Abstraction has 375 states and 551 transitions. [2022-01-31 22:45:23,728 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:45:23,728 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 551 transitions. [2022-01-31 22:45:23,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-01-31 22:45:23,729 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:45:23,729 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:45:23,729 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-01-31 22:45:23,729 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:45:23,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:45:23,730 INFO L85 PathProgramCache]: Analyzing trace with hash -1081677761, now seen corresponding path program 1 times [2022-01-31 22:45:23,730 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:45:23,730 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1921323607] [2022-01-31 22:45:23,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:45:23,757 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:45:23,757 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:45:23,757 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:45:23,764 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:45:23,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:45:23,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:45:23,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:45:23,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:45:23,851 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:45:23,851 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1921323607] [2022-01-31 22:45:23,851 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1921323607] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:45:23,851 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:45:23,852 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 22:45:23,852 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216294193] [2022-01-31 22:45:23,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:45:23,852 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 22:45:23,852 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:45:23,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 22:45:23,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 22:45:23,852 INFO L87 Difference]: Start difference. First operand 375 states and 551 transitions. Second operand has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:45:24,884 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 [] [2022-01-31 22:45:27,326 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 [] [2022-01-31 22:45:27,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:45:27,712 INFO L93 Difference]: Finished difference Result 793 states and 1172 transitions. [2022-01-31 22:45:27,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 22:45:27,712 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 144 [2022-01-31 22:45:27,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:45:27,714 INFO L225 Difference]: With dead ends: 793 [2022-01-31 22:45:27,714 INFO L226 Difference]: Without dead ends: 444 [2022-01-31 22:45:27,714 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 [2022-01-31 22:45:27,715 INFO L933 BasicCegarLoop]: 141 mSDtfsCounter, 121 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 474 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 394 SdHoareTripleChecker+Invalid, 526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 474 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-01-31 22:45:27,715 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [121 Valid, 394 Invalid, 526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 474 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2022-01-31 22:45:27,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 444 states. [2022-01-31 22:45:27,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 444 to 375. [2022-01-31 22:45:27,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 375 states, 370 states have (on average 1.4702702702702704) internal successors, (544), 370 states have internal predecessors, (544), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:45:27,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 548 transitions. [2022-01-31 22:45:27,731 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 548 transitions. Word has length 144 [2022-01-31 22:45:27,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:45:27,732 INFO L470 AbstractCegarLoop]: Abstraction has 375 states and 548 transitions. [2022-01-31 22:45:27,732 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:45:27,732 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 548 transitions. [2022-01-31 22:45:27,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-01-31 22:45:27,733 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:45:27,733 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:45:27,733 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-01-31 22:45:27,733 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:45:27,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:45:27,733 INFO L85 PathProgramCache]: Analyzing trace with hash 377043209, now seen corresponding path program 1 times [2022-01-31 22:45:27,733 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:45:27,733 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [569772194] [2022-01-31 22:45:27,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:45:27,766 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:45:27,766 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:45:27,767 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:45:27,773 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:45:27,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:45:27,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:45:27,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:45:27,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:45:27,845 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:45:27,845 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [569772194] [2022-01-31 22:45:27,845 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [569772194] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:45:27,845 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:45:27,845 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 22:45:27,846 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077776384] [2022-01-31 22:45:27,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:45:27,846 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 22:45:27,846 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:45:27,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 22:45:27,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 22:45:27,846 INFO L87 Difference]: Start difference. First operand 375 states and 548 transitions. Second operand has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:45:29,853 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 [] [2022-01-31 22:45:30,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:45:30,263 INFO L93 Difference]: Finished difference Result 793 states and 1166 transitions. [2022-01-31 22:45:30,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 22:45:30,263 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 144 [2022-01-31 22:45:30,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:45:30,264 INFO L225 Difference]: With dead ends: 793 [2022-01-31 22:45:30,264 INFO L226 Difference]: Without dead ends: 444 [2022-01-31 22:45:30,265 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 [2022-01-31 22:45:30,265 INFO L933 BasicCegarLoop]: 141 mSDtfsCounter, 125 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 471 mSolverCounterSat, 50 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 394 SdHoareTripleChecker+Invalid, 522 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 471 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-01-31 22:45:30,266 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [125 Valid, 394 Invalid, 522 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 471 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-01-31 22:45:30,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 444 states. [2022-01-31 22:45:30,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 444 to 375. [2022-01-31 22:45:30,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 375 states, 370 states have (on average 1.462162162162162) internal successors, (541), 370 states have internal predecessors, (541), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:45:30,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 545 transitions. [2022-01-31 22:45:30,283 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 545 transitions. Word has length 144 [2022-01-31 22:45:30,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:45:30,283 INFO L470 AbstractCegarLoop]: Abstraction has 375 states and 545 transitions. [2022-01-31 22:45:30,283 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:45:30,283 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 545 transitions. [2022-01-31 22:45:30,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-01-31 22:45:30,284 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:45:30,284 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:45:30,284 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-01-31 22:45:30,284 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:45:30,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:45:30,284 INFO L85 PathProgramCache]: Analyzing trace with hash -1139976880, now seen corresponding path program 1 times [2022-01-31 22:45:30,285 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:45:30,285 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [46033571] [2022-01-31 22:45:30,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:45:30,317 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:45:30,317 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:45:30,317 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:45:30,324 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:45:30,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:45:30,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:45:30,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:45:30,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:45:30,425 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:45:30,425 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [46033571] [2022-01-31 22:45:30,425 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [46033571] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:45:30,425 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:45:30,425 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 22:45:30,425 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95147441] [2022-01-31 22:45:30,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:45:30,426 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 22:45:30,426 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:45:30,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 22:45:30,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 22:45:30,426 INFO L87 Difference]: Start difference. First operand 375 states and 545 transitions. Second operand has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:45:32,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:45:32,673 INFO L93 Difference]: Finished difference Result 746 states and 1091 transitions. [2022-01-31 22:45:32,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 22:45:32,673 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 145 [2022-01-31 22:45:32,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:45:32,674 INFO L225 Difference]: With dead ends: 746 [2022-01-31 22:45:32,674 INFO L226 Difference]: Without dead ends: 397 [2022-01-31 22:45:32,675 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 22:45:32,675 INFO L933 BasicCegarLoop]: 216 mSDtfsCounter, 56 mSDsluCounter, 335 mSDsCounter, 0 mSdLazyCounter, 467 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 551 SdHoareTripleChecker+Invalid, 474 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 467 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-01-31 22:45:32,676 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [56 Valid, 551 Invalid, 474 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 467 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-01-31 22:45:32,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 397 states. [2022-01-31 22:45:32,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 397 to 375. [2022-01-31 22:45:32,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 375 states, 370 states have (on average 1.4594594594594594) internal successors, (540), 370 states have internal predecessors, (540), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:45:32,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 544 transitions. [2022-01-31 22:45:32,693 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 544 transitions. Word has length 145 [2022-01-31 22:45:32,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:45:32,693 INFO L470 AbstractCegarLoop]: Abstraction has 375 states and 544 transitions. [2022-01-31 22:45:32,693 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:45:32,693 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 544 transitions. [2022-01-31 22:45:32,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-01-31 22:45:32,694 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:45:32,694 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:45:32,694 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-01-31 22:45:32,695 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:45:32,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:45:32,695 INFO L85 PathProgramCache]: Analyzing trace with hash -1190966043, now seen corresponding path program 1 times [2022-01-31 22:45:32,695 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:45:32,695 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [944605081] [2022-01-31 22:45:32,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:45:32,739 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:45:32,739 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:45:32,740 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:45:32,747 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:45:32,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:45:32,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:45:32,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:45:32,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:45:32,825 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:45:32,825 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [944605081] [2022-01-31 22:45:32,825 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [944605081] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:45:32,825 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:45:32,825 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 22:45:32,825 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811127003] [2022-01-31 22:45:32,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:45:32,825 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 22:45:32,825 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:45:32,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 22:45:32,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 22:45:32,826 INFO L87 Difference]: Start difference. First operand 375 states and 544 transitions. Second operand has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:45:35,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:45:35,881 INFO L93 Difference]: Finished difference Result 746 states and 1089 transitions. [2022-01-31 22:45:35,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 22:45:35,881 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 148 [2022-01-31 22:45:35,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:45:35,883 INFO L225 Difference]: With dead ends: 746 [2022-01-31 22:45:35,883 INFO L226 Difference]: Without dead ends: 397 [2022-01-31 22:45:35,883 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 [2022-01-31 22:45:35,884 INFO L933 BasicCegarLoop]: 216 mSDtfsCounter, 49 mSDsluCounter, 335 mSDsCounter, 0 mSdLazyCounter, 467 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 551 SdHoareTripleChecker+Invalid, 474 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 467 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-01-31 22:45:35,884 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [49 Valid, 551 Invalid, 474 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 467 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-01-31 22:45:35,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 397 states. [2022-01-31 22:45:35,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 397 to 375. [2022-01-31 22:45:35,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 375 states, 370 states have (on average 1.4567567567567568) internal successors, (539), 370 states have internal predecessors, (539), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:45:35,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 543 transitions. [2022-01-31 22:45:35,901 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 543 transitions. Word has length 148 [2022-01-31 22:45:35,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:45:35,901 INFO L470 AbstractCegarLoop]: Abstraction has 375 states and 543 transitions. [2022-01-31 22:45:35,901 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:45:35,901 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 543 transitions. [2022-01-31 22:45:35,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-01-31 22:45:35,902 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:45:35,903 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:45:35,903 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-01-31 22:45:35,903 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:45:35,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:45:35,903 INFO L85 PathProgramCache]: Analyzing trace with hash -1229617135, now seen corresponding path program 1 times [2022-01-31 22:45:35,903 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:45:35,903 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [584326815] [2022-01-31 22:45:35,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:45:35,936 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:45:35,936 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:45:35,936 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:45:35,943 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:45:35,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:45:36,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:45:36,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:45:36,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:45:36,015 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:45:36,015 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [584326815] [2022-01-31 22:45:36,015 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [584326815] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:45:36,015 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:45:36,015 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 22:45:36,015 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891971495] [2022-01-31 22:45:36,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:45:36,016 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 22:45:36,016 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:45:36,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 22:45:36,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 22:45:36,017 INFO L87 Difference]: Start difference. First operand 375 states and 543 transitions. Second operand has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:45:38,610 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 22:45:38,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:45:38,965 INFO L93 Difference]: Finished difference Result 740 states and 1078 transitions. [2022-01-31 22:45:38,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 22:45:38,965 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 149 [2022-01-31 22:45:38,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:45:38,966 INFO L225 Difference]: With dead ends: 740 [2022-01-31 22:45:38,966 INFO L226 Difference]: Without dead ends: 391 [2022-01-31 22:45:38,967 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 [2022-01-31 22:45:38,967 INFO L933 BasicCegarLoop]: 218 mSDtfsCounter, 40 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 463 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 555 SdHoareTripleChecker+Invalid, 470 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 463 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-01-31 22:45:38,968 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [40 Valid, 555 Invalid, 470 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 463 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-01-31 22:45:38,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 391 states. [2022-01-31 22:45:38,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 391 to 375. [2022-01-31 22:45:38,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 375 states, 370 states have (on average 1.454054054054054) internal successors, (538), 370 states have internal predecessors, (538), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:45:38,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 542 transitions. [2022-01-31 22:45:38,984 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 542 transitions. Word has length 149 [2022-01-31 22:45:38,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:45:38,984 INFO L470 AbstractCegarLoop]: Abstraction has 375 states and 542 transitions. [2022-01-31 22:45:38,984 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:45:38,984 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 542 transitions. [2022-01-31 22:45:38,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-01-31 22:45:38,985 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:45:38,985 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:45:38,985 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-01-31 22:45:38,985 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:45:38,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:45:38,986 INFO L85 PathProgramCache]: Analyzing trace with hash 558953140, now seen corresponding path program 1 times [2022-01-31 22:45:38,986 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:45:38,986 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [42000904] [2022-01-31 22:45:38,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:45:39,018 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:45:39,019 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:45:39,019 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:45:39,033 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:45:39,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:45:39,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:45:39,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:45:39,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:45:39,117 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:45:39,117 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [42000904] [2022-01-31 22:45:39,117 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [42000904] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:45:39,117 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:45:39,117 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 22:45:39,117 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702350927] [2022-01-31 22:45:39,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:45:39,118 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 22:45:39,118 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:45:39,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 22:45:39,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 22:45:39,118 INFO L87 Difference]: Start difference. First operand 375 states and 542 transitions. Second operand has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:45:41,888 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 [] [2022-01-31 22:45:43,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:45:43,585 INFO L93 Difference]: Finished difference Result 740 states and 1076 transitions. [2022-01-31 22:45:43,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 22:45:43,585 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 149 [2022-01-31 22:45:43,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:45:43,587 INFO L225 Difference]: With dead ends: 740 [2022-01-31 22:45:43,587 INFO L226 Difference]: Without dead ends: 391 [2022-01-31 22:45:43,587 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 22:45:43,588 INFO L933 BasicCegarLoop]: 218 mSDtfsCounter, 38 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 462 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 555 SdHoareTripleChecker+Invalid, 470 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 462 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-01-31 22:45:43,588 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 555 Invalid, 470 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 462 Invalid, 1 Unknown, 0 Unchecked, 4.4s Time] [2022-01-31 22:45:43,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 391 states. [2022-01-31 22:45:43,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 391 to 375. [2022-01-31 22:45:43,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 375 states, 370 states have (on average 1.4513513513513514) internal successors, (537), 370 states have internal predecessors, (537), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:45:43,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 541 transitions. [2022-01-31 22:45:43,605 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 541 transitions. Word has length 149 [2022-01-31 22:45:43,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:45:43,605 INFO L470 AbstractCegarLoop]: Abstraction has 375 states and 541 transitions. [2022-01-31 22:45:43,605 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:45:43,605 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 541 transitions. [2022-01-31 22:45:43,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2022-01-31 22:45:43,606 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:45:43,606 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:45:43,606 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-01-31 22:45:43,606 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:45:43,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:45:43,606 INFO L85 PathProgramCache]: Analyzing trace with hash 1713537128, now seen corresponding path program 1 times [2022-01-31 22:45:43,606 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:45:43,606 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1842608490] [2022-01-31 22:45:43,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:45:43,625 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:45:43,625 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:45:43,626 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:45:43,640 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:45:43,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:45:43,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:45:43,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:45:43,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:45:43,717 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:45:43,717 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1842608490] [2022-01-31 22:45:43,718 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1842608490] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:45:43,718 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:45:43,718 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 22:45:43,718 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076531714] [2022-01-31 22:45:43,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:45:43,718 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 22:45:43,718 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:45:43,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 22:45:43,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 22:45:43,718 INFO L87 Difference]: Start difference. First operand 375 states and 541 transitions. Second operand has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:45:46,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:45:46,776 INFO L93 Difference]: Finished difference Result 737 states and 1070 transitions. [2022-01-31 22:45:46,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 22:45:46,776 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 150 [2022-01-31 22:45:46,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:45:46,778 INFO L225 Difference]: With dead ends: 737 [2022-01-31 22:45:46,778 INFO L226 Difference]: Without dead ends: 388 [2022-01-31 22:45:46,779 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 [2022-01-31 22:45:46,779 INFO L933 BasicCegarLoop]: 219 mSDtfsCounter, 33 mSDsluCounter, 338 mSDsCounter, 0 mSdLazyCounter, 461 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 557 SdHoareTripleChecker+Invalid, 468 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 461 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-01-31 22:45:46,779 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 557 Invalid, 468 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 461 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-01-31 22:45:46,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states. [2022-01-31 22:45:46,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 375. [2022-01-31 22:45:46,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 375 states, 370 states have (on average 1.4486486486486487) internal successors, (536), 370 states have internal predecessors, (536), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:45:46,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 540 transitions. [2022-01-31 22:45:46,796 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 540 transitions. Word has length 150 [2022-01-31 22:45:46,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:45:46,796 INFO L470 AbstractCegarLoop]: Abstraction has 375 states and 540 transitions. [2022-01-31 22:45:46,796 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:45:46,796 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 540 transitions. [2022-01-31 22:45:46,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2022-01-31 22:45:46,797 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:45:46,797 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:45:46,797 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-01-31 22:45:46,798 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:45:46,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:45:46,798 INFO L85 PathProgramCache]: Analyzing trace with hash 854171637, now seen corresponding path program 1 times [2022-01-31 22:45:46,798 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:45:46,798 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [527053788] [2022-01-31 22:45:46,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:45:46,821 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:45:46,821 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:45:46,836 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:45:46,844 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:45:46,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:45:46,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:45:46,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:45:46,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:45:46,911 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:45:46,911 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [527053788] [2022-01-31 22:45:46,911 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [527053788] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:45:46,911 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:45:46,911 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 22:45:46,911 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720089095] [2022-01-31 22:45:46,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:45:46,911 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 22:45:46,911 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:45:46,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 22:45:46,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 22:45:46,912 INFO L87 Difference]: Start difference. First operand 375 states and 540 transitions. Second operand has 4 states, 4 states have (on average 29.25) internal successors, (117), 3 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:45:49,221 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 22:45:49,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:45:49,524 INFO L93 Difference]: Finished difference Result 1068 states and 1554 transitions. [2022-01-31 22:45:49,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 22:45:49,525 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.25) internal successors, (117), 3 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 157 [2022-01-31 22:45:49,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:45:49,527 INFO L225 Difference]: With dead ends: 1068 [2022-01-31 22:45:49,527 INFO L226 Difference]: Without dead ends: 719 [2022-01-31 22:45:49,527 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 [2022-01-31 22:45:49,528 INFO L933 BasicCegarLoop]: 239 mSDtfsCounter, 141 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 290 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 433 SdHoareTripleChecker+Invalid, 303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 290 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-01-31 22:45:49,529 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [141 Valid, 433 Invalid, 303 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 290 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-01-31 22:45:49,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 719 states. [2022-01-31 22:45:49,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 719 to 717. [2022-01-31 22:45:49,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 717 states, 712 states have (on average 1.4424157303370786) internal successors, (1027), 712 states have internal predecessors, (1027), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:45:49,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 717 states to 717 states and 1031 transitions. [2022-01-31 22:45:49,560 INFO L78 Accepts]: Start accepts. Automaton has 717 states and 1031 transitions. Word has length 157 [2022-01-31 22:45:49,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:45:49,574 INFO L470 AbstractCegarLoop]: Abstraction has 717 states and 1031 transitions. [2022-01-31 22:45:49,574 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.25) internal successors, (117), 3 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:45:49,574 INFO L276 IsEmpty]: Start isEmpty. Operand 717 states and 1031 transitions. [2022-01-31 22:45:49,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2022-01-31 22:45:49,575 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:45:49,575 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:45:49,575 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-01-31 22:45:49,575 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:45:49,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:45:49,576 INFO L85 PathProgramCache]: Analyzing trace with hash 361545463, now seen corresponding path program 1 times [2022-01-31 22:45:49,576 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:45:49,576 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1540699332] [2022-01-31 22:45:49,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:45:49,598 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:45:49,598 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:45:49,598 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:45:49,606 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:45:49,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:45:49,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:45:49,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:45:49,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:45:49,678 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:45:49,678 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1540699332] [2022-01-31 22:45:49,679 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1540699332] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:45:49,679 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:45:49,679 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 22:45:49,679 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270077229] [2022-01-31 22:45:49,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:45:49,679 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 22:45:49,679 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:45:49,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 22:45:49,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 22:45:49,681 INFO L87 Difference]: Start difference. First operand 717 states and 1031 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) [2022-01-31 22:45:51,482 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 22:45:54,228 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 [] [2022-01-31 22:45:54,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:45:54,657 INFO L93 Difference]: Finished difference Result 1575 states and 2273 transitions. [2022-01-31 22:45:54,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 22:45:54,657 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 [2022-01-31 22:45:54,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:45:54,660 INFO L225 Difference]: With dead ends: 1575 [2022-01-31 22:45:54,660 INFO L226 Difference]: Without dead ends: 884 [2022-01-31 22:45:54,661 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 [2022-01-31 22:45:54,661 INFO L933 BasicCegarLoop]: 225 mSDtfsCounter, 79 mSDsluCounter, 341 mSDsCounter, 0 mSdLazyCounter, 530 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 566 SdHoareTripleChecker+Invalid, 535 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 530 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-01-31 22:45:54,661 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [79 Valid, 566 Invalid, 535 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 530 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2022-01-31 22:45:54,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 884 states. [2022-01-31 22:45:54,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 884 to 781. [2022-01-31 22:45:54,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 781 states, 776 states have (on average 1.4420103092783505) internal successors, (1119), 776 states have internal predecessors, (1119), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:45:54,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 781 states to 781 states and 1123 transitions. [2022-01-31 22:45:54,699 INFO L78 Accepts]: Start accepts. Automaton has 781 states and 1123 transitions. Word has length 157 [2022-01-31 22:45:54,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:45:54,699 INFO L470 AbstractCegarLoop]: Abstraction has 781 states and 1123 transitions. [2022-01-31 22:45:54,699 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) [2022-01-31 22:45:54,699 INFO L276 IsEmpty]: Start isEmpty. Operand 781 states and 1123 transitions. [2022-01-31 22:45:54,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2022-01-31 22:45:54,700 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:45:54,701 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] [2022-01-31 22:45:54,701 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-01-31 22:45:54,701 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:45:54,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:45:54,701 INFO L85 PathProgramCache]: Analyzing trace with hash -262107645, now seen corresponding path program 1 times [2022-01-31 22:45:54,701 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:45:54,701 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1845356556] [2022-01-31 22:45:54,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:45:54,726 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:45:54,726 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:45:54,727 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:45:54,735 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:45:54,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:45:54,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:45:54,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:45:54,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:45:54,862 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:45:54,862 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1845356556] [2022-01-31 22:45:54,862 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1845356556] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:45:54,862 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:45:54,862 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 22:45:54,862 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585231736] [2022-01-31 22:45:54,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:45:54,862 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 22:45:54,862 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:45:54,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 22:45:54,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 22:45:54,863 INFO L87 Difference]: Start difference. First operand 781 states and 1123 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) [2022-01-31 22:45:56,322 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 [] [2022-01-31 22:45:57,824 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 22:45:59,742 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 22:46:00,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:46:00,570 INFO L93 Difference]: Finished difference Result 1639 states and 2363 transitions. [2022-01-31 22:46:00,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 22:46:00,571 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 [2022-01-31 22:46:00,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:46:00,573 INFO L225 Difference]: With dead ends: 1639 [2022-01-31 22:46:00,573 INFO L226 Difference]: Without dead ends: 884 [2022-01-31 22:46:00,575 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 [2022-01-31 22:46:00,575 INFO L933 BasicCegarLoop]: 225 mSDtfsCounter, 73 mSDsluCounter, 341 mSDsCounter, 0 mSdLazyCounter, 530 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 566 SdHoareTripleChecker+Invalid, 535 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 530 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-01-31 22:46:00,575 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [73 Valid, 566 Invalid, 535 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 530 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2022-01-31 22:46:00,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 884 states. [2022-01-31 22:46:00,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 884 to 791. [2022-01-31 22:46:00,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 791 states, 786 states have (on average 1.4465648854961832) internal successors, (1137), 786 states have internal predecessors, (1137), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:46:00,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 791 states to 791 states and 1141 transitions. [2022-01-31 22:46:00,637 INFO L78 Accepts]: Start accepts. Automaton has 791 states and 1141 transitions. Word has length 163 [2022-01-31 22:46:00,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:46:00,638 INFO L470 AbstractCegarLoop]: Abstraction has 791 states and 1141 transitions. [2022-01-31 22:46:00,638 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) [2022-01-31 22:46:00,638 INFO L276 IsEmpty]: Start isEmpty. Operand 791 states and 1141 transitions. [2022-01-31 22:46:00,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2022-01-31 22:46:00,639 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:46:00,639 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] [2022-01-31 22:46:00,639 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-01-31 22:46:00,639 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:46:00,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:46:00,640 INFO L85 PathProgramCache]: Analyzing trace with hash -1811231069, now seen corresponding path program 1 times [2022-01-31 22:46:00,640 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:46:00,641 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [985440904] [2022-01-31 22:46:00,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:46:00,667 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:46:00,667 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:46:00,667 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:46:00,677 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:46:00,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:46:00,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:46:00,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:46:00,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:46:00,760 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:46:00,761 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [985440904] [2022-01-31 22:46:00,761 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [985440904] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:46:00,761 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:46:00,761 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 22:46:00,761 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383733641] [2022-01-31 22:46:00,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:46:00,762 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 22:46:00,762 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:46:00,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 22:46:00,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 22:46:00,762 INFO L87 Difference]: Start difference. First operand 791 states and 1141 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) [2022-01-31 22:46:04,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:46:04,528 INFO L93 Difference]: Finished difference Result 1643 states and 2372 transitions. [2022-01-31 22:46:04,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 22:46:04,528 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 [2022-01-31 22:46:04,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:46:04,530 INFO L225 Difference]: With dead ends: 1643 [2022-01-31 22:46:04,530 INFO L226 Difference]: Without dead ends: 878 [2022-01-31 22:46:04,531 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 [2022-01-31 22:46:04,532 INFO L933 BasicCegarLoop]: 226 mSDtfsCounter, 68 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 528 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 568 SdHoareTripleChecker+Invalid, 533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 528 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-01-31 22:46:04,532 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [68 Valid, 568 Invalid, 533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 528 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-01-31 22:46:04,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 878 states. [2022-01-31 22:46:04,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 878 to 793. [2022-01-31 22:46:04,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 793 states, 788 states have (on average 1.4454314720812182) internal successors, (1139), 788 states have internal predecessors, (1139), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:46:04,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 793 states to 793 states and 1143 transitions. [2022-01-31 22:46:04,571 INFO L78 Accepts]: Start accepts. Automaton has 793 states and 1143 transitions. Word has length 164 [2022-01-31 22:46:04,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:46:04,571 INFO L470 AbstractCegarLoop]: Abstraction has 793 states and 1143 transitions. [2022-01-31 22:46:04,571 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) [2022-01-31 22:46:04,571 INFO L276 IsEmpty]: Start isEmpty. Operand 793 states and 1143 transitions. [2022-01-31 22:46:04,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2022-01-31 22:46:04,572 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:46:04,572 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:46:04,573 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-01-31 22:46:04,573 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:46:04,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:46:04,573 INFO L85 PathProgramCache]: Analyzing trace with hash 1583041492, now seen corresponding path program 1 times [2022-01-31 22:46:04,573 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:46:04,573 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [509475657] [2022-01-31 22:46:04,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:46:04,596 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:46:04,596 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:46:04,596 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:46:04,604 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:46:04,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:46:04,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:46:04,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:46:04,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:46:04,698 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:46:04,698 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [509475657] [2022-01-31 22:46:04,698 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [509475657] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:46:04,698 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:46:04,698 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 22:46:04,698 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680220094] [2022-01-31 22:46:04,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:46:04,698 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 22:46:04,698 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:46:04,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 22:46:04,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 22:46:04,699 INFO L87 Difference]: Start difference. First operand 793 states and 1143 transitions. Second operand has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:46:07,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:46:07,747 INFO L93 Difference]: Finished difference Result 1845 states and 2676 transitions. [2022-01-31 22:46:07,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 22:46:07,747 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 166 [2022-01-31 22:46:07,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:46:07,753 INFO L225 Difference]: With dead ends: 1845 [2022-01-31 22:46:07,753 INFO L226 Difference]: Without dead ends: 1078 [2022-01-31 22:46:07,755 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 [2022-01-31 22:46:07,755 INFO L933 BasicCegarLoop]: 147 mSDtfsCounter, 118 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 470 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 406 SdHoareTripleChecker+Invalid, 511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 470 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-01-31 22:46:07,755 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [118 Valid, 406 Invalid, 511 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 470 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-01-31 22:46:07,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1078 states. [2022-01-31 22:46:07,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1078 to 921. [2022-01-31 22:46:07,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 921 states, 916 states have (on average 1.4443231441048034) internal successors, (1323), 916 states have internal predecessors, (1323), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:46:07,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 921 states to 921 states and 1327 transitions. [2022-01-31 22:46:07,815 INFO L78 Accepts]: Start accepts. Automaton has 921 states and 1327 transitions. Word has length 166 [2022-01-31 22:46:07,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:46:07,816 INFO L470 AbstractCegarLoop]: Abstraction has 921 states and 1327 transitions. [2022-01-31 22:46:07,816 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:46:07,816 INFO L276 IsEmpty]: Start isEmpty. Operand 921 states and 1327 transitions. [2022-01-31 22:46:07,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2022-01-31 22:46:07,817 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:46:07,817 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:46:07,817 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-01-31 22:46:07,817 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:46:07,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:46:07,818 INFO L85 PathProgramCache]: Analyzing trace with hash 1790268022, now seen corresponding path program 1 times [2022-01-31 22:46:07,818 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:46:07,818 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [805070952] [2022-01-31 22:46:07,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:46:07,853 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:46:07,853 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:46:07,854 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:46:07,862 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:46:08,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:46:08,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:46:08,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:46:08,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:46:08,173 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:46:08,173 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [805070952] [2022-01-31 22:46:08,173 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [805070952] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:46:08,173 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:46:08,173 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-31 22:46:08,173 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207536827] [2022-01-31 22:46:08,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:46:08,173 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-31 22:46:08,173 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:46:08,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-31 22:46:08,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-31 22:46:08,174 INFO L87 Difference]: Start difference. First operand 921 states and 1327 transitions. Second operand has 7 states, 6 states have (on average 12.166666666666666) internal successors, (73), 5 states have internal predecessors, (73), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:46:10,236 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 22:46:12,688 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 22:46:14,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:46:14,109 INFO L93 Difference]: Finished difference Result 1835 states and 2646 transitions. [2022-01-31 22:46:14,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-31 22:46:14,109 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 12.166666666666666) internal successors, (73), 5 states have internal predecessors, (73), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 171 [2022-01-31 22:46:14,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:46:14,114 INFO L225 Difference]: With dead ends: 1835 [2022-01-31 22:46:14,114 INFO L226 Difference]: Without dead ends: 921 [2022-01-31 22:46:14,115 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-01-31 22:46:14,115 INFO L933 BasicCegarLoop]: 213 mSDtfsCounter, 7 mSDsluCounter, 649 mSDsCounter, 0 mSdLazyCounter, 448 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 862 SdHoareTripleChecker+Invalid, 452 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 448 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-01-31 22:46:14,116 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 862 Invalid, 452 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 448 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2022-01-31 22:46:14,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 921 states. [2022-01-31 22:46:14,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 921 to 921. [2022-01-31 22:46:14,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 921 states, 916 states have (on average 1.443231441048035) internal successors, (1322), 916 states have internal predecessors, (1322), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:46:14,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 921 states to 921 states and 1326 transitions. [2022-01-31 22:46:14,163 INFO L78 Accepts]: Start accepts. Automaton has 921 states and 1326 transitions. Word has length 171 [2022-01-31 22:46:14,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:46:14,163 INFO L470 AbstractCegarLoop]: Abstraction has 921 states and 1326 transitions. [2022-01-31 22:46:14,163 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 12.166666666666666) internal successors, (73), 5 states have internal predecessors, (73), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:46:14,163 INFO L276 IsEmpty]: Start isEmpty. Operand 921 states and 1326 transitions. [2022-01-31 22:46:14,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2022-01-31 22:46:14,165 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:46:14,165 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:46:14,165 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-01-31 22:46:14,165 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:46:14,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:46:14,165 INFO L85 PathProgramCache]: Analyzing trace with hash -132982408, now seen corresponding path program 1 times [2022-01-31 22:46:14,165 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:46:14,165 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1356857247] [2022-01-31 22:46:14,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:46:14,207 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:46:14,207 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:46:14,207 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:46:14,216 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:46:14,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:46:15,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:46:15,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:46:15,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:46:15,860 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:46:15,860 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1356857247] [2022-01-31 22:46:15,860 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1356857247] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:46:15,860 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:46:15,860 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-01-31 22:46:15,860 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863325474] [2022-01-31 22:46:15,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:46:15,860 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-01-31 22:46:15,861 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:46:15,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-01-31 22:46:15,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-01-31 22:46:15,861 INFO L87 Difference]: Start difference. First operand 921 states and 1326 transitions. Second operand has 13 states, 12 states have (on average 13.083333333333334) internal successors, (157), 11 states have internal predecessors, (157), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:46:17,615 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 22:46:19,274 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 22:46:23,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:46:23,483 INFO L93 Difference]: Finished difference Result 3737 states and 5416 transitions. [2022-01-31 22:46:23,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-31 22:46:23,483 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 13.083333333333334) internal successors, (157), 11 states have internal predecessors, (157), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 171 [2022-01-31 22:46:23,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:46:23,490 INFO L225 Difference]: With dead ends: 3737 [2022-01-31 22:46:23,490 INFO L226 Difference]: Without dead ends: 2842 [2022-01-31 22:46:23,492 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=83, Invalid=297, Unknown=0, NotChecked=0, Total=380 [2022-01-31 22:46:23,492 INFO L933 BasicCegarLoop]: 267 mSDtfsCounter, 715 mSDsluCounter, 1460 mSDsCounter, 0 mSdLazyCounter, 2082 mSolverCounterSat, 191 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 715 SdHoareTripleChecker+Valid, 1727 SdHoareTripleChecker+Invalid, 2273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 191 IncrementalHoareTripleChecker+Valid, 2082 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2022-01-31 22:46:23,492 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [715 Valid, 1727 Invalid, 2273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [191 Valid, 2082 Invalid, 0 Unknown, 0 Unchecked, 7.2s Time] [2022-01-31 22:46:23,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2842 states. [2022-01-31 22:46:23,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2842 to 2373. [2022-01-31 22:46:23,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2373 states, 2368 states have (on average 1.4641047297297298) internal successors, (3467), 2368 states have internal predecessors, (3467), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:46:23,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2373 states to 2373 states and 3471 transitions. [2022-01-31 22:46:23,692 INFO L78 Accepts]: Start accepts. Automaton has 2373 states and 3471 transitions. Word has length 171 [2022-01-31 22:46:23,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:46:23,693 INFO L470 AbstractCegarLoop]: Abstraction has 2373 states and 3471 transitions. [2022-01-31 22:46:23,693 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 13.083333333333334) internal successors, (157), 11 states have internal predecessors, (157), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:46:23,693 INFO L276 IsEmpty]: Start isEmpty. Operand 2373 states and 3471 transitions. [2022-01-31 22:46:23,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2022-01-31 22:46:23,696 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:46:23,696 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:46:23,696 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-01-31 22:46:23,696 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:46:23,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:46:23,696 INFO L85 PathProgramCache]: Analyzing trace with hash -1742038434, now seen corresponding path program 1 times [2022-01-31 22:46:23,696 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:46:23,696 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [607592816] [2022-01-31 22:46:23,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:46:23,724 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:46:23,724 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:46:23,725 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:46:23,733 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:46:23,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:46:23,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:46:23,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:46:23,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:46:23,834 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:46:23,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [607592816] [2022-01-31 22:46:23,835 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [607592816] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:46:23,835 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:46:23,835 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 22:46:23,835 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095364009] [2022-01-31 22:46:23,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:46:23,836 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 22:46:23,836 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:46:23,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 22:46:23,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 22:46:23,836 INFO L87 Difference]: Start difference. First operand 2373 states and 3471 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) [2022-01-31 22:46:24,927 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 22:46:26,069 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 22:46:27,852 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 [] [2022-01-31 22:46:28,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:46:28,486 INFO L93 Difference]: Finished difference Result 5017 states and 7345 transitions. [2022-01-31 22:46:28,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 22:46:28,486 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 4 states have internal predecessors, (116), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 172 [2022-01-31 22:46:28,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:46:28,493 INFO L225 Difference]: With dead ends: 5017 [2022-01-31 22:46:28,493 INFO L226 Difference]: Without dead ends: 2670 [2022-01-31 22:46:28,496 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 [2022-01-31 22:46:28,496 INFO L933 BasicCegarLoop]: 246 mSDtfsCounter, 39 mSDsluCounter, 363 mSDsCounter, 0 mSdLazyCounter, 487 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 609 SdHoareTripleChecker+Invalid, 492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 487 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-01-31 22:46:28,497 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [39 Valid, 609 Invalid, 492 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 487 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2022-01-31 22:46:28,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2670 states. [2022-01-31 22:46:28,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2670 to 2541. [2022-01-31 22:46:28,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2541 states, 2536 states have (on average 1.461750788643533) internal successors, (3707), 2536 states have internal predecessors, (3707), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:46:28,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2541 states to 2541 states and 3711 transitions. [2022-01-31 22:46:28,688 INFO L78 Accepts]: Start accepts. Automaton has 2541 states and 3711 transitions. Word has length 172 [2022-01-31 22:46:28,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:46:28,688 INFO L470 AbstractCegarLoop]: Abstraction has 2541 states and 3711 transitions. [2022-01-31 22:46:28,689 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) [2022-01-31 22:46:28,689 INFO L276 IsEmpty]: Start isEmpty. Operand 2541 states and 3711 transitions. [2022-01-31 22:46:28,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2022-01-31 22:46:28,692 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:46:28,692 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, 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] [2022-01-31 22:46:28,692 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-01-31 22:46:28,692 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:46:28,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:46:28,692 INFO L85 PathProgramCache]: Analyzing trace with hash -615637410, now seen corresponding path program 1 times [2022-01-31 22:46:28,692 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:46:28,692 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1056686857] [2022-01-31 22:46:28,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:46:28,734 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:46:28,734 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:46:28,735 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:46:28,743 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:46:28,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:46:28,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:46:28,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:46:28,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:46:28,821 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:46:28,821 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1056686857] [2022-01-31 22:46:28,821 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1056686857] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:46:28,821 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:46:28,821 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 22:46:28,821 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904908605] [2022-01-31 22:46:28,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:46:28,822 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 22:46:28,822 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:46:28,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 22:46:28,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 22:46:28,822 INFO L87 Difference]: Start difference. First operand 2541 states and 3711 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) [2022-01-31 22:46:29,861 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 [] [2022-01-31 22:46:31,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:46:31,838 INFO L93 Difference]: Finished difference Result 4407 states and 6431 transitions. [2022-01-31 22:46:31,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 22:46:31,838 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 184 [2022-01-31 22:46:31,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:46:31,844 INFO L225 Difference]: With dead ends: 4407 [2022-01-31 22:46:31,845 INFO L226 Difference]: Without dead ends: 2701 [2022-01-31 22:46:31,847 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 [2022-01-31 22:46:31,847 INFO L933 BasicCegarLoop]: 226 mSDtfsCounter, 74 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 524 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 568 SdHoareTripleChecker+Invalid, 529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 524 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-01-31 22:46:31,847 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [74 Valid, 568 Invalid, 529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 524 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-01-31 22:46:31,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2701 states. [2022-01-31 22:46:32,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2701 to 2541. [2022-01-31 22:46:32,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2541 states, 2536 states have (on average 1.460173501577287) internal successors, (3703), 2536 states have internal predecessors, (3703), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:46:32,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2541 states to 2541 states and 3707 transitions. [2022-01-31 22:46:32,041 INFO L78 Accepts]: Start accepts. Automaton has 2541 states and 3707 transitions. Word has length 184 [2022-01-31 22:46:32,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:46:32,042 INFO L470 AbstractCegarLoop]: Abstraction has 2541 states and 3707 transitions. [2022-01-31 22:46:32,042 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) [2022-01-31 22:46:32,042 INFO L276 IsEmpty]: Start isEmpty. Operand 2541 states and 3707 transitions. [2022-01-31 22:46:32,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2022-01-31 22:46:32,045 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:46:32,045 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, 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] [2022-01-31 22:46:32,045 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-01-31 22:46:32,045 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:46:32,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:46:32,045 INFO L85 PathProgramCache]: Analyzing trace with hash -1080169055, now seen corresponding path program 1 times [2022-01-31 22:46:32,045 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:46:32,045 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1817248556] [2022-01-31 22:46:32,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:46:32,083 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:46:32,084 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:46:32,084 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:46:32,093 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:46:32,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:46:32,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:46:32,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:46:32,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:46:32,171 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:46:32,171 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1817248556] [2022-01-31 22:46:32,171 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1817248556] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:46:32,171 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:46:32,171 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 22:46:32,171 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893907738] [2022-01-31 22:46:32,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:46:32,171 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 22:46:32,171 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:46:32,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 22:46:32,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 22:46:32,172 INFO L87 Difference]: Start difference. First operand 2541 states and 3707 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) [2022-01-31 22:46:33,476 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 22:46:36,008 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 22:46:36,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:46:36,807 INFO L93 Difference]: Finished difference Result 4375 states and 6373 transitions. [2022-01-31 22:46:36,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 22:46:36,808 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 188 [2022-01-31 22:46:36,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:46:36,813 INFO L225 Difference]: With dead ends: 4375 [2022-01-31 22:46:36,813 INFO L226 Difference]: Without dead ends: 2669 [2022-01-31 22:46:36,815 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 [2022-01-31 22:46:36,816 INFO L933 BasicCegarLoop]: 235 mSDtfsCounter, 66 mSDsluCounter, 351 mSDsCounter, 0 mSdLazyCounter, 506 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 586 SdHoareTripleChecker+Invalid, 511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 506 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-01-31 22:46:36,816 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [66 Valid, 586 Invalid, 511 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 506 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2022-01-31 22:46:36,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2669 states. [2022-01-31 22:46:37,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2669 to 2541. [2022-01-31 22:46:37,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2541 states, 2536 states have (on average 1.458596214511041) internal successors, (3699), 2536 states have internal predecessors, (3699), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:46:37,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2541 states to 2541 states and 3703 transitions. [2022-01-31 22:46:37,031 INFO L78 Accepts]: Start accepts. Automaton has 2541 states and 3703 transitions. Word has length 188 [2022-01-31 22:46:37,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:46:37,031 INFO L470 AbstractCegarLoop]: Abstraction has 2541 states and 3703 transitions. [2022-01-31 22:46:37,031 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) [2022-01-31 22:46:37,031 INFO L276 IsEmpty]: Start isEmpty. Operand 2541 states and 3703 transitions. [2022-01-31 22:46:37,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-01-31 22:46:37,034 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:46:37,034 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, 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] [2022-01-31 22:46:37,034 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-01-31 22:46:37,034 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:46:37,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:46:37,035 INFO L85 PathProgramCache]: Analyzing trace with hash -214989381, now seen corresponding path program 1 times [2022-01-31 22:46:37,035 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:46:37,035 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [833206592] [2022-01-31 22:46:37,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:46:37,066 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:46:37,066 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:46:37,066 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:46:37,075 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:46:37,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:46:37,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:46:37,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:46:37,163 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:46:37,163 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:46:37,163 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [833206592] [2022-01-31 22:46:37,163 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [833206592] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:46:37,163 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:46:37,163 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 22:46:37,163 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104022934] [2022-01-31 22:46:37,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:46:37,164 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 22:46:37,164 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:46:37,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 22:46:37,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 22:46:37,165 INFO L87 Difference]: Start difference. First operand 2541 states and 3703 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) [2022-01-31 22:46:40,540 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 [] [2022-01-31 22:46:41,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:46:41,934 INFO L93 Difference]: Finished difference Result 4375 states and 6367 transitions. [2022-01-31 22:46:41,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 22:46:41,935 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 195 [2022-01-31 22:46:41,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:46:41,939 INFO L225 Difference]: With dead ends: 4375 [2022-01-31 22:46:41,939 INFO L226 Difference]: Without dead ends: 2669 [2022-01-31 22:46:41,942 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 [2022-01-31 22:46:41,942 INFO L933 BasicCegarLoop]: 235 mSDtfsCounter, 60 mSDsluCounter, 351 mSDsCounter, 0 mSdLazyCounter, 505 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 586 SdHoareTripleChecker+Invalid, 511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 505 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-01-31 22:46:41,942 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [60 Valid, 586 Invalid, 511 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 505 Invalid, 1 Unknown, 0 Unchecked, 4.6s Time] [2022-01-31 22:46:41,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2669 states. [2022-01-31 22:46:42,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2669 to 2541. [2022-01-31 22:46:42,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2541 states, 2536 states have (on average 1.4570189274447949) internal successors, (3695), 2536 states have internal predecessors, (3695), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:46:42,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2541 states to 2541 states and 3699 transitions. [2022-01-31 22:46:42,151 INFO L78 Accepts]: Start accepts. Automaton has 2541 states and 3699 transitions. Word has length 195 [2022-01-31 22:46:42,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:46:42,151 INFO L470 AbstractCegarLoop]: Abstraction has 2541 states and 3699 transitions. [2022-01-31 22:46:42,151 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) [2022-01-31 22:46:42,151 INFO L276 IsEmpty]: Start isEmpty. Operand 2541 states and 3699 transitions. [2022-01-31 22:46:42,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2022-01-31 22:46:42,154 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:46:42,154 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, 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] [2022-01-31 22:46:42,154 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-01-31 22:46:42,154 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:46:42,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:46:42,154 INFO L85 PathProgramCache]: Analyzing trace with hash 752225111, now seen corresponding path program 1 times [2022-01-31 22:46:42,154 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:46:42,155 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1480755405] [2022-01-31 22:46:42,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:46:42,186 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:46:42,186 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:46:42,186 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:46:42,195 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:46:42,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:46:42,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:46:42,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:46:42,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:46:42,292 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:46:42,292 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1480755405] [2022-01-31 22:46:42,293 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1480755405] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:46:42,293 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:46:42,293 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 22:46:42,293 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186791809] [2022-01-31 22:46:42,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:46:42,293 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 22:46:42,293 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:46:42,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 22:46:42,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 22:46:42,293 INFO L87 Difference]: Start difference. First operand 2541 states and 3699 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) [2022-01-31 22:46:44,738 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 22:46:46,390 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 [] [2022-01-31 22:46:47,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:46:47,030 INFO L93 Difference]: Finished difference Result 5437 states and 7905 transitions. [2022-01-31 22:46:47,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 22:46:47,031 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.0) internal successors, (135), 4 states have internal predecessors, (135), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 196 [2022-01-31 22:46:47,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:46:47,035 INFO L225 Difference]: With dead ends: 5437 [2022-01-31 22:46:47,035 INFO L226 Difference]: Without dead ends: 2922 [2022-01-31 22:46:47,038 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 [2022-01-31 22:46:47,038 INFO L933 BasicCegarLoop]: 132 mSDtfsCounter, 116 mSDsluCounter, 244 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 376 SdHoareTripleChecker+Invalid, 520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-01-31 22:46:47,039 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [116 Valid, 376 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 464 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2022-01-31 22:46:47,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2922 states. [2022-01-31 22:46:47,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2922 to 2541. [2022-01-31 22:46:47,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2541 states, 2536 states have (on average 1.4507097791798107) internal successors, (3679), 2536 states have internal predecessors, (3679), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:46:47,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2541 states to 2541 states and 3683 transitions. [2022-01-31 22:46:47,238 INFO L78 Accepts]: Start accepts. Automaton has 2541 states and 3683 transitions. Word has length 196 [2022-01-31 22:46:47,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:46:47,239 INFO L470 AbstractCegarLoop]: Abstraction has 2541 states and 3683 transitions. [2022-01-31 22:46:47,239 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) [2022-01-31 22:46:47,239 INFO L276 IsEmpty]: Start isEmpty. Operand 2541 states and 3683 transitions. [2022-01-31 22:46:47,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2022-01-31 22:46:47,242 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:46:47,242 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, 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] [2022-01-31 22:46:47,242 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-01-31 22:46:47,242 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:46:47,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:46:47,242 INFO L85 PathProgramCache]: Analyzing trace with hash -1829414344, now seen corresponding path program 1 times [2022-01-31 22:46:47,242 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:46:47,242 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1309835397] [2022-01-31 22:46:47,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:46:47,284 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:46:47,284 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:46:47,284 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:46:47,294 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:46:47,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:46:47,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:46:47,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:46:47,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:46:47,399 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:46:47,399 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1309835397] [2022-01-31 22:46:47,399 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1309835397] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:46:47,399 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:46:47,399 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 22:46:47,399 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951230212] [2022-01-31 22:46:47,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:46:47,400 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 22:46:47,400 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:46:47,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 22:46:47,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 22:46:47,401 INFO L87 Difference]: Start difference. First operand 2541 states and 3683 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) [2022-01-31 22:46:50,313 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 [] [2022-01-31 22:46:51,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:46:51,515 INFO L93 Difference]: Finished difference Result 4351 states and 6303 transitions. [2022-01-31 22:46:51,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 22:46:51,516 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.0) internal successors, (135), 4 states have internal predecessors, (135), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 196 [2022-01-31 22:46:51,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:46:51,520 INFO L225 Difference]: With dead ends: 4351 [2022-01-31 22:46:51,520 INFO L226 Difference]: Without dead ends: 2645 [2022-01-31 22:46:51,522 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 [2022-01-31 22:46:51,522 INFO L933 BasicCegarLoop]: 237 mSDtfsCounter, 49 mSDsluCounter, 353 mSDsCounter, 0 mSdLazyCounter, 501 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 590 SdHoareTripleChecker+Invalid, 507 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 501 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-01-31 22:46:51,522 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [49 Valid, 590 Invalid, 507 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 501 Invalid, 1 Unknown, 0 Unchecked, 3.9s Time] [2022-01-31 22:46:51,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2645 states. [2022-01-31 22:46:51,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2645 to 2541. [2022-01-31 22:46:51,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2541 states, 2536 states have (on average 1.4491324921135647) internal successors, (3675), 2536 states have internal predecessors, (3675), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:46:51,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2541 states to 2541 states and 3679 transitions. [2022-01-31 22:46:51,723 INFO L78 Accepts]: Start accepts. Automaton has 2541 states and 3679 transitions. Word has length 196 [2022-01-31 22:46:51,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:46:51,723 INFO L470 AbstractCegarLoop]: Abstraction has 2541 states and 3679 transitions. [2022-01-31 22:46:51,723 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) [2022-01-31 22:46:51,723 INFO L276 IsEmpty]: Start isEmpty. Operand 2541 states and 3679 transitions. [2022-01-31 22:46:51,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-01-31 22:46:51,726 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:46:51,726 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, 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] [2022-01-31 22:46:51,726 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-01-31 22:46:51,726 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:46:51,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:46:51,726 INFO L85 PathProgramCache]: Analyzing trace with hash -593763460, now seen corresponding path program 1 times [2022-01-31 22:46:51,726 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:46:51,726 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [751798010] [2022-01-31 22:46:51,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:46:51,765 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:46:51,766 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:46:51,766 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:46:51,782 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:46:51,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:46:51,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:46:51,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:46:51,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:46:51,868 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:46:51,868 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [751798010] [2022-01-31 22:46:51,868 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [751798010] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:46:51,868 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:46:51,868 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 22:46:51,868 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556882714] [2022-01-31 22:46:51,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:46:51,869 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 22:46:51,869 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:46:51,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 22:46:51,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 22:46:51,869 INFO L87 Difference]: Start difference. First operand 2541 states and 3679 transitions. Second operand has 5 states, 5 states have (on average 27.2) internal successors, (136), 4 states have internal predecessors, (136), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:46:54,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:46:54,319 INFO L93 Difference]: Finished difference Result 5437 states and 7865 transitions. [2022-01-31 22:46:54,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 22:46:54,320 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.2) internal successors, (136), 4 states have internal predecessors, (136), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 197 [2022-01-31 22:46:54,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:46:54,323 INFO L225 Difference]: With dead ends: 5437 [2022-01-31 22:46:54,323 INFO L226 Difference]: Without dead ends: 2922 [2022-01-31 22:46:54,326 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 [2022-01-31 22:46:54,326 INFO L933 BasicCegarLoop]: 140 mSDtfsCounter, 113 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 472 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 392 SdHoareTripleChecker+Invalid, 526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 472 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-01-31 22:46:54,326 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [113 Valid, 392 Invalid, 526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 472 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-01-31 22:46:54,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2922 states. [2022-01-31 22:46:54,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2922 to 2541. [2022-01-31 22:46:54,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2541 states, 2536 states have (on average 1.4428233438485805) internal successors, (3659), 2536 states have internal predecessors, (3659), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:46:54,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2541 states to 2541 states and 3663 transitions. [2022-01-31 22:46:54,536 INFO L78 Accepts]: Start accepts. Automaton has 2541 states and 3663 transitions. Word has length 197 [2022-01-31 22:46:54,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:46:54,537 INFO L470 AbstractCegarLoop]: Abstraction has 2541 states and 3663 transitions. [2022-01-31 22:46:54,537 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.2) internal successors, (136), 4 states have internal predecessors, (136), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:46:54,537 INFO L276 IsEmpty]: Start isEmpty. Operand 2541 states and 3663 transitions. [2022-01-31 22:46:54,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-01-31 22:46:54,540 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:46:54,540 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:46:54,540 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-01-31 22:46:54,541 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:46:54,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:46:54,541 INFO L85 PathProgramCache]: Analyzing trace with hash -1214984088, now seen corresponding path program 1 times [2022-01-31 22:46:54,541 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:46:54,541 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1454002979] [2022-01-31 22:46:54,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:46:54,591 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:46:54,591 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:46:54,591 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:46:54,601 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:46:54,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:46:55,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:46:55,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:46:55,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:46:55,282 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:46:55,282 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1454002979] [2022-01-31 22:46:55,282 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1454002979] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:46:55,282 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:46:55,283 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-01-31 22:46:55,283 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403798199] [2022-01-31 22:46:55,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:46:55,283 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-01-31 22:46:55,283 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:46:55,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-01-31 22:46:55,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-01-31 22:46:55,283 INFO L87 Difference]: Start difference. First operand 2541 states and 3663 transitions. Second operand has 12 states, 11 states have (on average 11.727272727272727) internal successors, (129), 10 states have internal predecessors, (129), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:46:57,572 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 22:46:58,972 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 22:47:00,416 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 22:47:04,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:47:04,945 INFO L93 Difference]: Finished difference Result 6008 states and 8652 transitions. [2022-01-31 22:47:04,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-01-31 22:47:04,946 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 11.727272727272727) internal successors, (129), 10 states have internal predecessors, (129), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 197 [2022-01-31 22:47:04,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:47:04,951 INFO L225 Difference]: With dead ends: 6008 [2022-01-31 22:47:04,951 INFO L226 Difference]: Without dead ends: 3493 [2022-01-31 22:47:04,955 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=270, Unknown=0, NotChecked=0, Total=342 [2022-01-31 22:47:04,955 INFO L933 BasicCegarLoop]: 300 mSDtfsCounter, 404 mSDsluCounter, 2205 mSDsCounter, 0 mSdLazyCounter, 2750 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 404 SdHoareTripleChecker+Valid, 2505 SdHoareTripleChecker+Invalid, 2848 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 2750 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.2s IncrementalHoareTripleChecker+Time [2022-01-31 22:47:04,955 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [404 Valid, 2505 Invalid, 2848 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 2750 Invalid, 0 Unknown, 0 Unchecked, 9.2s Time] [2022-01-31 22:47:04,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3493 states. [2022-01-31 22:47:05,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3493 to 2689. [2022-01-31 22:47:05,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2689 states, 2684 states have (on average 1.4541728763040238) internal successors, (3903), 2684 states have internal predecessors, (3903), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:47:05,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2689 states to 2689 states and 3907 transitions. [2022-01-31 22:47:05,202 INFO L78 Accepts]: Start accepts. Automaton has 2689 states and 3907 transitions. Word has length 197 [2022-01-31 22:47:05,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:47:05,202 INFO L470 AbstractCegarLoop]: Abstraction has 2689 states and 3907 transitions. [2022-01-31 22:47:05,202 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 11.727272727272727) internal successors, (129), 10 states have internal predecessors, (129), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:47:05,202 INFO L276 IsEmpty]: Start isEmpty. Operand 2689 states and 3907 transitions. [2022-01-31 22:47:05,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-01-31 22:47:05,205 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:47:05,205 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 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] [2022-01-31 22:47:05,205 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-01-31 22:47:05,205 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:47:05,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:47:05,206 INFO L85 PathProgramCache]: Analyzing trace with hash 1922358673, now seen corresponding path program 1 times [2022-01-31 22:47:05,206 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:47:05,206 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [168495786] [2022-01-31 22:47:05,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:47:05,240 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:47:05,240 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:47:05,240 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:47:05,250 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:47:05,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:47:05,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:47:05,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:47:05,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:47:05,382 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:47:05,382 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [168495786] [2022-01-31 22:47:05,382 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [168495786] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:47:05,382 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:47:05,382 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 22:47:05,382 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487216151] [2022-01-31 22:47:05,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:47:05,382 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 22:47:05,382 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:47:05,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 22:47:05,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 22:47:05,383 INFO L87 Difference]: Start difference. First operand 2689 states and 3907 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) [2022-01-31 22:47:06,455 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 [] [2022-01-31 22:47:08,263 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 22:47:09,897 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 22:47:10,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:47:10,575 INFO L93 Difference]: Finished difference Result 5673 states and 8247 transitions. [2022-01-31 22:47:10,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 22:47:10,576 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 197 [2022-01-31 22:47:10,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:47:10,582 INFO L225 Difference]: With dead ends: 5673 [2022-01-31 22:47:10,582 INFO L226 Difference]: Without dead ends: 3010 [2022-01-31 22:47:10,587 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 [2022-01-31 22:47:10,587 INFO L933 BasicCegarLoop]: 245 mSDtfsCounter, 41 mSDsluCounter, 363 mSDsCounter, 0 mSdLazyCounter, 489 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 608 SdHoareTripleChecker+Invalid, 496 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 489 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-01-31 22:47:10,587 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [41 Valid, 608 Invalid, 496 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 489 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2022-01-31 22:47:10,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3010 states. [2022-01-31 22:47:10,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3010 to 2869. [2022-01-31 22:47:10,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2869 states, 2864 states have (on average 1.45286312849162) internal successors, (4161), 2864 states have internal predecessors, (4161), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:47:10,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2869 states to 2869 states and 4165 transitions. [2022-01-31 22:47:10,862 INFO L78 Accepts]: Start accepts. Automaton has 2869 states and 4165 transitions. Word has length 197 [2022-01-31 22:47:10,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:47:10,862 INFO L470 AbstractCegarLoop]: Abstraction has 2869 states and 4165 transitions. [2022-01-31 22:47:10,862 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) [2022-01-31 22:47:10,862 INFO L276 IsEmpty]: Start isEmpty. Operand 2869 states and 4165 transitions. [2022-01-31 22:47:10,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2022-01-31 22:47:10,865 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:47:10,865 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:47:10,866 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-01-31 22:47:10,866 INFO L402 AbstractCegarLoop]: === Iteration 56 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:47:10,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:47:10,866 INFO L85 PathProgramCache]: Analyzing trace with hash 982445276, now seen corresponding path program 1 times [2022-01-31 22:47:10,866 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:47:10,866 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [423816709] [2022-01-31 22:47:10,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:47:10,899 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:47:10,900 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:47:10,900 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:47:10,910 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:47:11,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:47:11,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:47:11,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:47:11,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:47:11,518 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:47:11,518 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [423816709] [2022-01-31 22:47:11,518 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [423816709] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:47:11,518 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:47:11,518 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-31 22:47:11,518 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117809653] [2022-01-31 22:47:11,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:47:11,518 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-31 22:47:11,519 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:47:11,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-31 22:47:11,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-01-31 22:47:11,519 INFO L87 Difference]: Start difference. First operand 2869 states and 4165 transitions. Second operand has 10 states, 9 states have (on average 13.333333333333334) internal successors, (120), 8 states have internal predecessors, (120), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:47:14,683 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 22:47:16,596 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 22:47:18,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:47:18,439 INFO L93 Difference]: Finished difference Result 6721 states and 9768 transitions. [2022-01-31 22:47:18,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-31 22:47:18,440 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 13.333333333333334) internal successors, (120), 8 states have internal predecessors, (120), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 198 [2022-01-31 22:47:18,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:47:18,445 INFO L225 Difference]: With dead ends: 6721 [2022-01-31 22:47:18,445 INFO L226 Difference]: Without dead ends: 3878 [2022-01-31 22:47:18,449 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2022-01-31 22:47:18,450 INFO L933 BasicCegarLoop]: 221 mSDtfsCounter, 423 mSDsluCounter, 1102 mSDsCounter, 0 mSdLazyCounter, 1567 mSolverCounterSat, 117 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 423 SdHoareTripleChecker+Valid, 1323 SdHoareTripleChecker+Invalid, 1685 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 117 IncrementalHoareTripleChecker+Valid, 1567 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2022-01-31 22:47:18,450 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [423 Valid, 1323 Invalid, 1685 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [117 Valid, 1567 Invalid, 1 Unknown, 0 Unchecked, 6.4s Time] [2022-01-31 22:47:18,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3878 states. [2022-01-31 22:47:18,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3878 to 2873. [2022-01-31 22:47:18,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2873 states, 2868 states have (on average 1.452231520223152) internal successors, (4165), 2868 states have internal predecessors, (4165), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:47:18,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2873 states to 2873 states and 4169 transitions. [2022-01-31 22:47:18,716 INFO L78 Accepts]: Start accepts. Automaton has 2873 states and 4169 transitions. Word has length 198 [2022-01-31 22:47:18,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:47:18,717 INFO L470 AbstractCegarLoop]: Abstraction has 2873 states and 4169 transitions. [2022-01-31 22:47:18,717 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 13.333333333333334) internal successors, (120), 8 states have internal predecessors, (120), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:47:18,717 INFO L276 IsEmpty]: Start isEmpty. Operand 2873 states and 4169 transitions. [2022-01-31 22:47:18,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2022-01-31 22:47:18,719 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:47:18,720 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:47:18,720 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-01-31 22:47:18,720 INFO L402 AbstractCegarLoop]: === Iteration 57 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:47:18,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:47:18,720 INFO L85 PathProgramCache]: Analyzing trace with hash -1923228006, now seen corresponding path program 1 times [2022-01-31 22:47:18,720 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:47:18,720 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1178044336] [2022-01-31 22:47:18,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:47:18,774 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:47:18,774 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:47:18,774 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:47:18,785 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:47:19,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:47:19,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:47:19,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:47:19,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:47:19,300 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:47:19,300 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1178044336] [2022-01-31 22:47:19,300 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1178044336] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:47:19,300 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:47:19,300 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-31 22:47:19,300 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330326374] [2022-01-31 22:47:19,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:47:19,300 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-31 22:47:19,300 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:47:19,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-31 22:47:19,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-01-31 22:47:19,301 INFO L87 Difference]: Start difference. First operand 2873 states and 4169 transitions. Second operand has 10 states, 9 states have (on average 14.444444444444445) internal successors, (130), 8 states have internal predecessors, (130), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:47:21,313 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 [] [2022-01-31 22:47:23,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:47:23,239 INFO L93 Difference]: Finished difference Result 6530 states and 9424 transitions. [2022-01-31 22:47:23,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-31 22:47:23,239 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 14.444444444444445) internal successors, (130), 8 states have internal predecessors, (130), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 198 [2022-01-31 22:47:23,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:47:23,244 INFO L225 Difference]: With dead ends: 6530 [2022-01-31 22:47:23,245 INFO L226 Difference]: Without dead ends: 3683 [2022-01-31 22:47:23,249 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2022-01-31 22:47:23,250 INFO L933 BasicCegarLoop]: 269 mSDtfsCounter, 389 mSDsluCounter, 1547 mSDsCounter, 0 mSdLazyCounter, 2044 mSolverCounterSat, 105 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 389 SdHoareTripleChecker+Valid, 1816 SdHoareTripleChecker+Invalid, 2150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 105 IncrementalHoareTripleChecker+Valid, 2044 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-01-31 22:47:23,250 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [389 Valid, 1816 Invalid, 2150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [105 Valid, 2044 Invalid, 1 Unknown, 0 Unchecked, 3.4s Time] [2022-01-31 22:47:23,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3683 states. [2022-01-31 22:47:23,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3683 to 2861. [2022-01-31 22:47:23,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2861 states, 2856 states have (on average 1.4499299719887955) internal successors, (4141), 2856 states have internal predecessors, (4141), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:47:23,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2861 states to 2861 states and 4145 transitions. [2022-01-31 22:47:23,536 INFO L78 Accepts]: Start accepts. Automaton has 2861 states and 4145 transitions. Word has length 198 [2022-01-31 22:47:23,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:47:23,536 INFO L470 AbstractCegarLoop]: Abstraction has 2861 states and 4145 transitions. [2022-01-31 22:47:23,536 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 14.444444444444445) internal successors, (130), 8 states have internal predecessors, (130), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:47:23,536 INFO L276 IsEmpty]: Start isEmpty. Operand 2861 states and 4145 transitions. [2022-01-31 22:47:23,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2022-01-31 22:47:23,539 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:47:23,539 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, 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] [2022-01-31 22:47:23,540 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-01-31 22:47:23,540 INFO L402 AbstractCegarLoop]: === Iteration 58 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:47:23,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:47:23,540 INFO L85 PathProgramCache]: Analyzing trace with hash -315321121, now seen corresponding path program 1 times [2022-01-31 22:47:23,540 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:47:23,540 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1486686694] [2022-01-31 22:47:23,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:47:23,580 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:47:23,580 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:47:23,580 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:47:23,592 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:47:23,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:47:24,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:47:24,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:47:24,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:47:24,462 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:47:24,462 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1486686694] [2022-01-31 22:47:24,462 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1486686694] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:47:24,462 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:47:24,462 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-31 22:47:24,462 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650509279] [2022-01-31 22:47:24,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:47:24,462 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-31 22:47:24,462 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:47:24,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-31 22:47:24,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2022-01-31 22:47:24,463 INFO L87 Difference]: Start difference. First operand 2861 states and 4145 transitions. Second operand has 18 states, 17 states have (on average 11.529411764705882) internal successors, (196), 16 states have internal predecessors, (196), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:47:25,933 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 22:47:31,001 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 [] [2022-01-31 22:47:38,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:47:38,213 INFO L93 Difference]: Finished difference Result 11195 states and 16192 transitions. [2022-01-31 22:47:38,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-31 22:47:38,213 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 11.529411764705882) internal successors, (196), 16 states have internal predecessors, (196), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 200 [2022-01-31 22:47:38,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:47:38,223 INFO L225 Difference]: With dead ends: 11195 [2022-01-31 22:47:38,223 INFO L226 Difference]: Without dead ends: 8360 [2022-01-31 22:47:38,227 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 160 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=156, Invalid=836, Unknown=0, NotChecked=0, Total=992 [2022-01-31 22:47:38,228 INFO L933 BasicCegarLoop]: 343 mSDtfsCounter, 938 mSDsluCounter, 3629 mSDsCounter, 0 mSdLazyCounter, 4268 mSolverCounterSat, 149 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 938 SdHoareTripleChecker+Valid, 3972 SdHoareTripleChecker+Invalid, 4417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 149 IncrementalHoareTripleChecker+Valid, 4268 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.1s IncrementalHoareTripleChecker+Time [2022-01-31 22:47:38,228 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [938 Valid, 3972 Invalid, 4417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [149 Valid, 4268 Invalid, 0 Unknown, 0 Unchecked, 12.1s Time] [2022-01-31 22:47:38,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8360 states. [2022-01-31 22:47:38,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8360 to 5117. [2022-01-31 22:47:38,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5117 states, 5112 states have (on average 1.4620500782472614) internal successors, (7474), 5112 states have internal predecessors, (7474), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:47:38,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5117 states to 5117 states and 7478 transitions. [2022-01-31 22:47:38,909 INFO L78 Accepts]: Start accepts. Automaton has 5117 states and 7478 transitions. Word has length 200 [2022-01-31 22:47:38,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:47:38,909 INFO L470 AbstractCegarLoop]: Abstraction has 5117 states and 7478 transitions. [2022-01-31 22:47:38,910 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 11.529411764705882) internal successors, (196), 16 states have internal predecessors, (196), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:47:38,910 INFO L276 IsEmpty]: Start isEmpty. Operand 5117 states and 7478 transitions. [2022-01-31 22:47:38,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2022-01-31 22:47:38,915 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:47:38,915 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, 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] [2022-01-31 22:47:38,915 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-01-31 22:47:38,915 INFO L402 AbstractCegarLoop]: === Iteration 59 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:47:38,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:47:38,916 INFO L85 PathProgramCache]: Analyzing trace with hash -1269261279, now seen corresponding path program 1 times [2022-01-31 22:47:38,916 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:47:38,916 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1564745724] [2022-01-31 22:47:38,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:47:38,974 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:47:38,974 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:47:38,974 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:47:38,986 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:47:39,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-31 22:47:39,280 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-01-31 22:47:39,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-31 22:47:39,488 INFO L133 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2022-01-31 22:47:39,488 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-01-31 22:47:39,493 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-01-31 22:47:39,494 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-01-31 22:47:39,496 INFO L732 BasicCegarLoop]: Path program 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:47:39,498 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-01-31 22:47:39,543 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.01 10:47:39 BoogieIcfgContainer [2022-01-31 22:47:39,543 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-31 22:47:39,544 INFO L158 Benchmark]: Toolchain (without parser) took 275354.05ms. Allocated memory was 169.9MB in the beginning and 690.0MB in the end (delta: 520.1MB). Free memory was 113.8MB in the beginning and 493.0MB in the end (delta: -379.2MB). Peak memory consumption was 532.4MB. Max. memory is 8.0GB. [2022-01-31 22:47:39,544 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 169.9MB. Free memory is still 132.5MB. There was no memory consumed. Max. memory is 8.0GB. [2022-01-31 22:47:39,544 INFO L158 Benchmark]: CACSL2BoogieTranslator took 480.63ms. Allocated memory was 169.9MB in the beginning and 229.6MB in the end (delta: 59.8MB). Free memory was 113.6MB in the beginning and 184.0MB in the end (delta: -70.4MB). Peak memory consumption was 17.7MB. Max. memory is 8.0GB. [2022-01-31 22:47:39,544 INFO L158 Benchmark]: Boogie Preprocessor took 116.73ms. Allocated memory is still 229.6MB. Free memory was 183.5MB in the beginning and 176.2MB in the end (delta: 7.3MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. [2022-01-31 22:47:39,544 INFO L158 Benchmark]: RCFGBuilder took 1217.29ms. Allocated memory is still 229.6MB. Free memory was 175.7MB in the beginning and 98.6MB in the end (delta: 77.1MB). Peak memory consumption was 76.5MB. Max. memory is 8.0GB. [2022-01-31 22:47:39,544 INFO L158 Benchmark]: TraceAbstraction took 273534.02ms. Allocated memory was 229.6MB in the beginning and 690.0MB in the end (delta: 460.3MB). Free memory was 98.1MB in the beginning and 493.0MB in the end (delta: -394.9MB). Peak memory consumption was 456.5MB. Max. memory is 8.0GB. [2022-01-31 22:47:39,546 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 169.9MB. Free memory is still 132.5MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 480.63ms. Allocated memory was 169.9MB in the beginning and 229.6MB in the end (delta: 59.8MB). Free memory was 113.6MB in the beginning and 184.0MB in the end (delta: -70.4MB). Peak memory consumption was 17.7MB. Max. memory is 8.0GB. * Boogie Preprocessor took 116.73ms. Allocated memory is still 229.6MB. Free memory was 183.5MB in the beginning and 176.2MB in the end (delta: 7.3MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. * RCFGBuilder took 1217.29ms. Allocated memory is still 229.6MB. Free memory was 175.7MB in the beginning and 98.6MB in the end (delta: 77.1MB). Peak memory consumption was 76.5MB. Max. memory is 8.0GB. * TraceAbstraction took 273534.02ms. Allocated memory was 229.6MB in the beginning and 690.0MB in the end (delta: 460.3MB). Free memory was 98.1MB in the beginning and 493.0MB in the end (delta: -394.9MB). Peak memory consumption was 456.5MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1770]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseAnd at line 1153. Possible FailurePath: [L1054] static int init = 1; [L1055] static SSL_METHOD SSLv3_server_data ; [L1077] SSL *s ; [L1078] int tmp ; [L1082] s = malloc(sizeof(SSL)) [L1083] s->s3 = malloc(sizeof(struct ssl3_state_st)) [L1084] s->ctx = malloc(sizeof(SSL_CTX)) [L1085] s->session = malloc(sizeof(SSL_SESSION)) [L1087] s->info_callback = (void (*) ()) __VERIFIER_nondet_ulong() [L1088] s->options = __VERIFIER_nondet_ulong() [L1089] s->verify_mode = __VERIFIER_nondet_int() [L1090] EXPR s->session [L1090] (s->session)->peer = (struct x509_st*) __VERIFIER_nondet_ulong() [L1091] EXPR s->s3 [L1091] (s->s3)->tmp.cert_request = __VERIFIER_nondet_int() [L1092] EXPR s->s3 [L1092] (s->s3)->tmp.new_cipher = malloc(sizeof(struct ssl_cipher_st)) [L1093] EXPR s->s3 [L1093] EXPR (s->s3)->tmp.new_cipher [L1093] ((s->s3)->tmp.new_cipher)->algorithms = __VERIFIER_nondet_ulong() [L1094] EXPR s->s3 [L1094] EXPR (s->s3)->tmp.new_cipher [L1094] ((s->s3)->tmp.new_cipher)->algo_strength = __VERIFIER_nondet_ulong() [L1095] COND FALSE !(__VERIFIER_nondet_int()) [L1101] s->cert = malloc(sizeof(struct cert_st)) [L1102] EXPR s->cert [L1102] (s->cert)->pkeys[0].privatekey = (struct evp_pkey_st*) __VERIFIER_nondet_ulong() [L1106] CALL ssl3_accept(s) [L1112] BUF_MEM *buf ; [L1113] unsigned long l ; [L1114] unsigned long Time ; [L1115] unsigned long tmp ; [L1116] void (*cb)() ; [L1117] long num1 ; [L1118] int ret ; [L1119] int new_state ; [L1120] int state ; [L1121] int skip ; [L1122] int got_new_session ; [L1123] int tmp___1 = __VERIFIER_nondet_int() ; [L1124] int tmp___2 = __VERIFIER_nondet_int() ; [L1125] int tmp___3 = __VERIFIER_nondet_int() ; [L1126] int tmp___4 = __VERIFIER_nondet_int() ; [L1127] int tmp___5 = __VERIFIER_nondet_int() ; [L1128] int tmp___6 = __VERIFIER_nondet_int() ; [L1129] int tmp___7 ; [L1130] long tmp___8 = __VERIFIER_nondet_long() ; [L1131] int tmp___9 = __VERIFIER_nondet_int() ; [L1132] int tmp___10 = __VERIFIER_nondet_int() ; [L1133] int blastFlag ; [L1137] s->state = 8464 [L1138] blastFlag = 0 [L1139] s->hit=__VERIFIER_nondet_int () [L1140] s->state = 8464 [L1141] tmp = __VERIFIER_nondet_int() [L1142] Time = tmp [L1143] cb = (void (*)())((void *)0) [L1144] ret = -1 [L1145] skip = 0 [L1146] got_new_session = 0 [L1147] EXPR s->info_callback [L1147] COND TRUE (unsigned long )s->info_callback != (unsigned long )((void *)0) [L1148] EXPR s->info_callback [L1148] cb = s->info_callback [L1152] EXPR s->in_handshake [L1152] s->in_handshake += 1 [L1153] COND FALSE !(tmp___1 & 12288) [L1162] EXPR s->cert [L1162] COND FALSE !((unsigned long )s->cert == (unsigned long )((void *)0)) [L1168] COND TRUE 1 [L1170] EXPR s->state [L1170] state = s->state [L1171] EXPR s->state [L1171] COND FALSE !(s->state == 12292) [L1174] EXPR s->state [L1174] COND FALSE !(s->state == 16384) [L1177] EXPR s->state [L1177] COND FALSE !(s->state == 8192) [L1180] EXPR s->state [L1180] COND FALSE !(s->state == 24576) [L1183] EXPR s->state [L1183] COND FALSE !(s->state == 8195) [L1186] EXPR s->state [L1186] COND FALSE !(s->state == 8480) [L1189] EXPR s->state [L1189] COND FALSE !(s->state == 8481) [L1192] EXPR s->state [L1192] COND FALSE !(s->state == 8482) [L1195] EXPR s->state [L1195] COND TRUE s->state == 8464 [L1355] s->shutdown = 0 [L1356] ret = __VERIFIER_nondet_int() [L1357] COND TRUE blastFlag == 0 [L1358] blastFlag = 1 [L1362] COND FALSE !(ret <= 0) [L1367] got_new_session = 1 [L1368] s->state = 8496 [L1369] s->init_num = 0 [L1729] EXPR s->s3 [L1729] EXPR (s->s3)->tmp.reuse_message [L1729] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1758] skip = 0 [L1168] COND TRUE 1 [L1170] EXPR s->state [L1170] state = s->state [L1171] EXPR s->state [L1171] COND FALSE !(s->state == 12292) [L1174] EXPR s->state [L1174] COND FALSE !(s->state == 16384) [L1177] EXPR s->state [L1177] COND FALSE !(s->state == 8192) [L1180] EXPR s->state [L1180] COND FALSE !(s->state == 24576) [L1183] EXPR s->state [L1183] COND FALSE !(s->state == 8195) [L1186] EXPR s->state [L1186] COND FALSE !(s->state == 8480) [L1189] EXPR s->state [L1189] COND FALSE !(s->state == 8481) [L1192] EXPR s->state [L1192] COND FALSE !(s->state == 8482) [L1195] EXPR s->state [L1195] COND FALSE !(s->state == 8464) [L1198] EXPR s->state [L1198] COND FALSE !(s->state == 8465) [L1201] EXPR s->state [L1201] COND FALSE !(s->state == 8466) [L1204] EXPR s->state [L1204] COND TRUE s->state == 8496 [L1373] ret = __VERIFIER_nondet_int() [L1374] COND TRUE blastFlag == 1 [L1375] blastFlag = 2 [L1379] COND FALSE !(ret <= 0) [L1384] s->hit [L1384] COND TRUE s->hit [L1385] s->state = 8656 [L1389] s->init_num = 0 [L1729] EXPR s->s3 [L1729] EXPR (s->s3)->tmp.reuse_message [L1729] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1758] skip = 0 [L1168] COND TRUE 1 [L1170] EXPR s->state [L1170] state = s->state [L1171] EXPR s->state [L1171] COND FALSE !(s->state == 12292) [L1174] EXPR s->state [L1174] COND FALSE !(s->state == 16384) [L1177] EXPR s->state [L1177] COND FALSE !(s->state == 8192) [L1180] EXPR s->state [L1180] COND FALSE !(s->state == 24576) [L1183] EXPR s->state [L1183] COND FALSE !(s->state == 8195) [L1186] EXPR s->state [L1186] COND FALSE !(s->state == 8480) [L1189] EXPR s->state [L1189] COND FALSE !(s->state == 8481) [L1192] EXPR s->state [L1192] COND FALSE !(s->state == 8482) [L1195] EXPR s->state [L1195] COND FALSE !(s->state == 8464) [L1198] EXPR s->state [L1198] COND FALSE !(s->state == 8465) [L1201] EXPR s->state [L1201] COND FALSE !(s->state == 8466) [L1204] EXPR s->state [L1204] COND FALSE !(s->state == 8496) [L1207] EXPR s->state [L1207] COND FALSE !(s->state == 8497) [L1210] EXPR s->state [L1210] COND FALSE !(s->state == 8512) [L1213] EXPR s->state [L1213] COND FALSE !(s->state == 8513) [L1216] EXPR s->state [L1216] COND FALSE !(s->state == 8528) [L1219] EXPR s->state [L1219] COND FALSE !(s->state == 8529) [L1222] EXPR s->state [L1222] COND FALSE !(s->state == 8544) [L1225] EXPR s->state [L1225] COND FALSE !(s->state == 8545) [L1228] EXPR s->state [L1228] COND FALSE !(s->state == 8560) [L1231] EXPR s->state [L1231] COND FALSE !(s->state == 8561) [L1234] EXPR s->state [L1234] COND FALSE !(s->state == 8448) [L1237] EXPR s->state [L1237] COND FALSE !(s->state == 8576) [L1240] EXPR s->state [L1240] COND FALSE !(s->state == 8577) [L1243] EXPR s->state [L1243] COND FALSE !(s->state == 8592) [L1246] EXPR s->state [L1246] COND FALSE !(s->state == 8593) [L1249] EXPR s->state [L1249] COND FALSE !(s->state == 8608) [L1252] EXPR s->state [L1252] COND FALSE !(s->state == 8609) [L1255] EXPR s->state [L1255] COND FALSE !(s->state == 8640) [L1258] EXPR s->state [L1258] COND FALSE !(s->state == 8641) [L1261] EXPR s->state [L1261] COND TRUE s->state == 8656 [L1622] EXPR s->session [L1622] EXPR s->s3 [L1622] EXPR (s->s3)->tmp.new_cipher [L1622] (s->session)->cipher = (s->s3)->tmp.new_cipher [L1623] COND FALSE !(! tmp___9) [L1629] ret = __VERIFIER_nondet_int() [L1630] COND FALSE !(blastFlag == 10) [L1635] COND FALSE !(ret <= 0) [L1640] s->state = 8672 [L1641] s->init_num = 0 [L1642] COND FALSE !(! tmp___10) [L1729] EXPR s->s3 [L1729] EXPR (s->s3)->tmp.reuse_message [L1729] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1758] skip = 0 [L1168] COND TRUE 1 [L1170] EXPR s->state [L1170] state = s->state [L1171] EXPR s->state [L1171] COND FALSE !(s->state == 12292) [L1174] EXPR s->state [L1174] COND FALSE !(s->state == 16384) [L1177] EXPR s->state [L1177] COND FALSE !(s->state == 8192) [L1180] EXPR s->state [L1180] COND FALSE !(s->state == 24576) [L1183] EXPR s->state [L1183] COND FALSE !(s->state == 8195) [L1186] EXPR s->state [L1186] COND FALSE !(s->state == 8480) [L1189] EXPR s->state [L1189] COND FALSE !(s->state == 8481) [L1192] EXPR s->state [L1192] COND FALSE !(s->state == 8482) [L1195] EXPR s->state [L1195] COND FALSE !(s->state == 8464) [L1198] EXPR s->state [L1198] COND FALSE !(s->state == 8465) [L1201] EXPR s->state [L1201] COND FALSE !(s->state == 8466) [L1204] EXPR s->state [L1204] COND FALSE !(s->state == 8496) [L1207] EXPR s->state [L1207] COND FALSE !(s->state == 8497) [L1210] EXPR s->state [L1210] COND FALSE !(s->state == 8512) [L1213] EXPR s->state [L1213] COND FALSE !(s->state == 8513) [L1216] EXPR s->state [L1216] COND FALSE !(s->state == 8528) [L1219] EXPR s->state [L1219] COND FALSE !(s->state == 8529) [L1222] EXPR s->state [L1222] COND FALSE !(s->state == 8544) [L1225] EXPR s->state [L1225] COND FALSE !(s->state == 8545) [L1228] EXPR s->state [L1228] COND FALSE !(s->state == 8560) [L1231] EXPR s->state [L1231] COND FALSE !(s->state == 8561) [L1234] EXPR s->state [L1234] COND FALSE !(s->state == 8448) [L1237] EXPR s->state [L1237] COND FALSE !(s->state == 8576) [L1240] EXPR s->state [L1240] COND FALSE !(s->state == 8577) [L1243] EXPR s->state [L1243] COND FALSE !(s->state == 8592) [L1246] EXPR s->state [L1246] COND FALSE !(s->state == 8593) [L1249] EXPR s->state [L1249] COND FALSE !(s->state == 8608) [L1252] EXPR s->state [L1252] COND FALSE !(s->state == 8609) [L1255] EXPR s->state [L1255] COND FALSE !(s->state == 8640) [L1258] EXPR s->state [L1258] COND FALSE !(s->state == 8641) [L1261] EXPR s->state [L1261] COND FALSE !(s->state == 8656) [L1264] EXPR s->state [L1264] COND FALSE !(s->state == 8657) [L1267] EXPR s->state [L1267] COND TRUE s->state == 8672 [L1651] ret = __VERIFIER_nondet_int() [L1652] COND FALSE !(blastFlag == 11) [L1657] COND FALSE !(ret <= 0) [L1662] s->state = 8448 [L1663] s->hit [L1663] COND TRUE s->hit [L1664] EXPR s->s3 [L1664] (s->s3)->tmp.next_state = 8640 [L1668] s->init_num = 0 [L1729] EXPR s->s3 [L1729] EXPR (s->s3)->tmp.reuse_message [L1729] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1758] skip = 0 [L1168] COND TRUE 1 [L1170] EXPR s->state [L1170] state = s->state [L1171] EXPR s->state [L1171] COND FALSE !(s->state == 12292) [L1174] EXPR s->state [L1174] COND FALSE !(s->state == 16384) [L1177] EXPR s->state [L1177] COND FALSE !(s->state == 8192) [L1180] EXPR s->state [L1180] COND FALSE !(s->state == 24576) [L1183] EXPR s->state [L1183] COND FALSE !(s->state == 8195) [L1186] EXPR s->state [L1186] COND FALSE !(s->state == 8480) [L1189] EXPR s->state [L1189] COND FALSE !(s->state == 8481) [L1192] EXPR s->state [L1192] COND FALSE !(s->state == 8482) [L1195] EXPR s->state [L1195] COND FALSE !(s->state == 8464) [L1198] EXPR s->state [L1198] COND FALSE !(s->state == 8465) [L1201] EXPR s->state [L1201] COND FALSE !(s->state == 8466) [L1204] EXPR s->state [L1204] COND FALSE !(s->state == 8496) [L1207] EXPR s->state [L1207] COND FALSE !(s->state == 8497) [L1210] EXPR s->state [L1210] COND FALSE !(s->state == 8512) [L1213] EXPR s->state [L1213] COND FALSE !(s->state == 8513) [L1216] EXPR s->state [L1216] COND FALSE !(s->state == 8528) [L1219] EXPR s->state [L1219] COND FALSE !(s->state == 8529) [L1222] EXPR s->state [L1222] COND FALSE !(s->state == 8544) [L1225] EXPR s->state [L1225] COND FALSE !(s->state == 8545) [L1228] EXPR s->state [L1228] COND FALSE !(s->state == 8560) [L1231] EXPR s->state [L1231] COND FALSE !(s->state == 8561) [L1234] EXPR s->state [L1234] COND TRUE s->state == 8448 [L1522] COND FALSE !(num1 > 0L) [L1535] EXPR s->s3 [L1535] EXPR (s->s3)->tmp.next_state [L1535] s->state = (s->s3)->tmp.next_state [L1729] EXPR s->s3 [L1729] EXPR (s->s3)->tmp.reuse_message [L1729] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1758] skip = 0 [L1168] COND TRUE 1 [L1170] EXPR s->state [L1170] state = s->state [L1171] EXPR s->state [L1171] COND FALSE !(s->state == 12292) [L1174] EXPR s->state [L1174] COND FALSE !(s->state == 16384) [L1177] EXPR s->state [L1177] COND FALSE !(s->state == 8192) [L1180] EXPR s->state [L1180] COND FALSE !(s->state == 24576) [L1183] EXPR s->state [L1183] COND FALSE !(s->state == 8195) [L1186] EXPR s->state [L1186] COND FALSE !(s->state == 8480) [L1189] EXPR s->state [L1189] COND FALSE !(s->state == 8481) [L1192] EXPR s->state [L1192] COND FALSE !(s->state == 8482) [L1195] EXPR s->state [L1195] COND FALSE !(s->state == 8464) [L1198] EXPR s->state [L1198] COND FALSE !(s->state == 8465) [L1201] EXPR s->state [L1201] COND FALSE !(s->state == 8466) [L1204] EXPR s->state [L1204] COND FALSE !(s->state == 8496) [L1207] EXPR s->state [L1207] COND FALSE !(s->state == 8497) [L1210] EXPR s->state [L1210] COND FALSE !(s->state == 8512) [L1213] EXPR s->state [L1213] COND FALSE !(s->state == 8513) [L1216] EXPR s->state [L1216] COND FALSE !(s->state == 8528) [L1219] EXPR s->state [L1219] COND FALSE !(s->state == 8529) [L1222] EXPR s->state [L1222] COND FALSE !(s->state == 8544) [L1225] EXPR s->state [L1225] COND FALSE !(s->state == 8545) [L1228] EXPR s->state [L1228] COND FALSE !(s->state == 8560) [L1231] EXPR s->state [L1231] COND FALSE !(s->state == 8561) [L1234] EXPR s->state [L1234] COND FALSE !(s->state == 8448) [L1237] EXPR s->state [L1237] COND FALSE !(s->state == 8576) [L1240] EXPR s->state [L1240] COND FALSE !(s->state == 8577) [L1243] EXPR s->state [L1243] COND FALSE !(s->state == 8592) [L1246] EXPR s->state [L1246] COND FALSE !(s->state == 8593) [L1249] EXPR s->state [L1249] COND FALSE !(s->state == 8608) [L1252] EXPR s->state [L1252] COND FALSE !(s->state == 8609) [L1255] EXPR s->state [L1255] COND TRUE s->state == 8640 [L1602] ret = __VERIFIER_nondet_int() [L1603] COND FALSE !(blastFlag == 9) [L1770] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 10 procedures, 191 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 273.4s, OverallIterations: 59, TraceHistogramMax: 7, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 257.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 18 mSolverCounterUnknown, 6910 SdHoareTripleChecker+Valid, 249.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 6910 mSDsluCounter, 37824 SdHoareTripleChecker+Invalid, 242.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 26397 mSDsCounter, 1889 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 37132 IncrementalHoareTripleChecker+Invalid, 39039 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1889 mSolverCounterUnsat, 11427 mSDtfsCounter, 37132 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 551 GetRequests, 246 SyntacticMatches, 0 SemanticMatches, 305 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 255 ImplicationChecksByTransitivity, 2.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5117occurred in iteration=58, InterpolantAutomatonStates: 334, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 4.1s AutomataMinimizationTime, 58 MinimizatonAttempts, 10231 StatesRemovedByMinimization, 56 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-01-31 22:47:39,576 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...