/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.11.i.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-6c470ae [2022-02-15 03:16:43,712 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-15 03:16:43,722 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-15 03:16:43,785 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-15 03:16:43,786 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-15 03:16:43,787 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-15 03:16:43,788 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-15 03:16:43,789 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-15 03:16:43,791 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-15 03:16:43,791 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-15 03:16:43,792 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-15 03:16:43,793 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-15 03:16:43,793 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-15 03:16:43,794 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-15 03:16:43,802 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-15 03:16:43,803 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-15 03:16:43,803 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-15 03:16:43,804 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-15 03:16:43,808 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-15 03:16:43,810 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-15 03:16:43,811 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-15 03:16:43,819 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-15 03:16:43,820 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-15 03:16:43,820 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-15 03:16:43,822 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-02-15 03:16:43,829 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-15 03:16:43,830 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-15 03:16:43,830 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-15 03:16:43,833 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationJordan_32.epf [2022-02-15 03:16:43,840 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-15 03:16:43,840 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-15 03:16:43,841 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-15 03:16:43,841 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-15 03:16:43,841 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-15 03:16:43,841 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-15 03:16:43,842 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-15 03:16:43,842 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-15 03:16:43,842 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-15 03:16:43,842 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-15 03:16:43,842 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-15 03:16:43,842 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-15 03:16:43,842 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-15 03:16:43,842 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-15 03:16:43,842 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-15 03:16:43,842 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-15 03:16:43,843 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-15 03:16:43,843 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-15 03:16:43,843 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-15 03:16:43,843 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-15 03:16:43,843 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2022-02-15 03:16:43,843 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-15 03:16:43,843 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=JORDAN [2022-02-15 03:16:43,843 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-02-15 03:16:44,044 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-15 03:16:44,066 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-15 03:16:44,068 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-15 03:16:44,069 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-15 03:16:44,073 INFO L275 PluginConnector]: CDTParser initialized [2022-02-15 03:16:44,075 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl/s3_srvr.blast.11.i.cil-1.c [2022-02-15 03:16:44,142 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1795afa18/3251455b54c044df81372fddb80ca603/FLAG09114158f [2022-02-15 03:16:44,679 INFO L306 CDTParser]: Found 1 translation units. [2022-02-15 03:16:44,679 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.11.i.cil-1.c [2022-02-15 03:16:44,693 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1795afa18/3251455b54c044df81372fddb80ca603/FLAG09114158f [2022-02-15 03:16:44,981 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1795afa18/3251455b54c044df81372fddb80ca603 [2022-02-15 03:16:44,984 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-15 03:16:44,986 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-02-15 03:16:44,989 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-15 03:16:44,989 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-15 03:16:44,993 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-15 03:16:44,993 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 03:16:44" (1/1) ... [2022-02-15 03:16:44,995 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77809951 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 03:16:44, skipping insertion in model container [2022-02-15 03:16:44,995 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 03:16:44" (1/1) ... [2022-02-15 03:16:45,002 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-15 03:16:45,065 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-15 03:16:45,466 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.11.i.cil-1.c[74369,74382] [2022-02-15 03:16:45,473 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-15 03:16:45,492 INFO L203 MainTranslator]: Completed pre-run [2022-02-15 03:16:45,550 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.11.i.cil-1.c[74369,74382] [2022-02-15 03:16:45,552 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-15 03:16:45,563 INFO L208 MainTranslator]: Completed translation [2022-02-15 03:16:45,564 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 03:16:45 WrapperNode [2022-02-15 03:16:45,564 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-15 03:16:45,565 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-15 03:16:45,565 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-15 03:16:45,565 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-15 03:16:45,578 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 03:16:45" (1/1) ... [2022-02-15 03:16:45,578 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 03:16:45" (1/1) ... [2022-02-15 03:16:45,613 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 03:16:45" (1/1) ... [2022-02-15 03:16:45,613 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 03:16:45" (1/1) ... [2022-02-15 03:16:45,662 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 03:16:45" (1/1) ... [2022-02-15 03:16:45,669 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 03:16:45" (1/1) ... [2022-02-15 03:16:45,672 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 03:16:45" (1/1) ... [2022-02-15 03:16:45,677 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-15 03:16:45,678 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-15 03:16:45,679 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-15 03:16:45,679 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-15 03:16:45,685 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 03:16:45" (1/1) ... [2022-02-15 03:16:45,692 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-15 03:16:45,702 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-15 03:16:45,749 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-02-15 03:16:45,754 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-02-15 03:16:45,793 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-02-15 03:16:45,793 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-15 03:16:45,793 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-02-15 03:16:45,793 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_server_method [2022-02-15 03:16:45,793 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_server_method [2022-02-15 03:16:45,793 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-02-15 03:16:45,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-02-15 03:16:45,794 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-02-15 03:16:45,794 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-02-15 03:16:45,794 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-02-15 03:16:45,794 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-02-15 03:16:45,794 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-02-15 03:16:45,794 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-02-15 03:16:45,794 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-15 03:16:45,794 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-02-15 03:16:45,794 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-02-15 03:16:45,794 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-02-15 03:16:45,795 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-02-15 03:16:45,795 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-02-15 03:16:45,795 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-02-15 03:16:45,795 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_server_method [2022-02-15 03:16:45,795 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-02-15 03:16:45,795 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-02-15 03:16:45,795 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_server_method [2022-02-15 03:16:45,795 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-02-15 03:16:45,795 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-02-15 03:16:45,795 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-02-15 03:16:45,795 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-02-15 03:16:45,796 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-15 03:16:45,796 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-02-15 03:16:45,796 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-15 03:16:45,796 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-02-15 03:16:45,796 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-02-15 03:16:45,796 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-02-15 03:16:45,796 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-15 03:16:45,796 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-15 03:16:45,796 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-02-15 03:16:45,796 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-02-15 03:16:45,796 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-02-15 03:16:45,797 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-02-15 03:16:45,797 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-15 03:16:45,921 INFO L234 CfgBuilder]: Building ICFG [2022-02-15 03:16:45,923 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-15 03:16:46,931 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-02-15 03:16:47,410 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2022-02-15 03:16:47,410 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2022-02-15 03:16:47,419 INFO L275 CfgBuilder]: Performing block encoding [2022-02-15 03:16:47,427 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-15 03:16:47,427 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-02-15 03:16:47,429 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 03:16:47 BoogieIcfgContainer [2022-02-15 03:16:47,430 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-15 03:16:47,432 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-15 03:16:47,433 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-15 03:16:47,435 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-15 03:16:47,435 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.02 03:16:44" (1/3) ... [2022-02-15 03:16:47,436 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79e852ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 03:16:47, skipping insertion in model container [2022-02-15 03:16:47,436 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 03:16:45" (2/3) ... [2022-02-15 03:16:47,436 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79e852ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 03:16:47, skipping insertion in model container [2022-02-15 03:16:47,437 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 03:16:47" (3/3) ... [2022-02-15 03:16:47,438 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr.blast.11.i.cil-1.c [2022-02-15 03:16:47,441 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-02-15 03:16:47,442 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-15 03:16:47,472 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-15 03:16:47,477 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=AcceleratedInterpolation, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=JORDAN [2022-02-15 03:16:47,477 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-02-15 03:16:47,493 INFO L276 IsEmpty]: Start isEmpty. Operand has 158 states, 150 states have (on average 1.7066666666666668) internal successors, (256), 151 states have internal predecessors, (256), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-02-15 03:16:47,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-02-15 03:16:47,502 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:16:47,502 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:16:47,503 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:16:47,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:16:47,507 INFO L85 PathProgramCache]: Analyzing trace with hash -671352377, now seen corresponding path program 1 times [2022-02-15 03:16:47,513 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:16:47,513 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [823314716] [2022-02-15 03:16:47,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:16:47,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:16:47,575 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:16:47,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:16:48,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:16:48,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:16:48,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:16:48,076 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:16:48,076 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [823314716] [2022-02-15 03:16:48,078 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [823314716] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:16:48,078 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:16:48,078 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 03:16:48,079 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869337793] [2022-02-15 03:16:48,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:16:48,083 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 03:16:48,084 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:16:48,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 03:16:48,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 03:16:48,108 INFO L87 Difference]: Start difference. First operand has 158 states, 150 states have (on average 1.7066666666666668) internal successors, (256), 151 states have internal predecessors, (256), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:16:49,874 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:16:51,113 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:16:52,520 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:16:53,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:16:53,588 INFO L93 Difference]: Finished difference Result 430 states and 727 transitions. [2022-02-15 03:16:53,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 03:16:53,591 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 42 [2022-02-15 03:16:53,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:16:53,602 INFO L225 Difference]: With dead ends: 430 [2022-02-15 03:16:53,602 INFO L226 Difference]: Without dead ends: 261 [2022-02-15 03:16:53,605 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 03:16:53,608 INFO L933 BasicCegarLoop]: 157 mSDtfsCounter, 167 mSDsluCounter, 304 mSDsCounter, 0 mSdLazyCounter, 533 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 461 SdHoareTripleChecker+Invalid, 597 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 533 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-02-15 03:16:53,608 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [167 Valid, 461 Invalid, 597 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 533 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2022-02-15 03:16:53,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2022-02-15 03:16:53,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 170. [2022-02-15 03:16:53,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 165 states have (on average 1.5818181818181818) internal successors, (261), 165 states have internal predecessors, (261), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:16:53,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 265 transitions. [2022-02-15 03:16:53,675 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 265 transitions. Word has length 42 [2022-02-15 03:16:53,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:16:53,676 INFO L470 AbstractCegarLoop]: Abstraction has 170 states and 265 transitions. [2022-02-15 03:16:53,676 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:16:53,676 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 265 transitions. [2022-02-15 03:16:53,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-02-15 03:16:53,678 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:16:53,678 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:16:53,678 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-15 03:16:53,678 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:16:53,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:16:53,679 INFO L85 PathProgramCache]: Analyzing trace with hash 1244096364, now seen corresponding path program 1 times [2022-02-15 03:16:53,679 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:16:53,679 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1655370740] [2022-02-15 03:16:53,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:16:53,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:16:53,683 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:16:53,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:16:53,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:16:53,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:16:53,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:16:53,889 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:16:53,890 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1655370740] [2022-02-15 03:16:53,890 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1655370740] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:16:53,890 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:16:53,890 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 03:16:53,890 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730393223] [2022-02-15 03:16:53,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:16:53,892 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 03:16:53,892 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:16:53,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 03:16:53,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 03:16:53,893 INFO L87 Difference]: Start difference. First operand 170 states and 265 transitions. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:16:55,907 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:16:56,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:16:56,542 INFO L93 Difference]: Finished difference Result 444 states and 697 transitions. [2022-02-15 03:16:56,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 03:16:56,543 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 43 [2022-02-15 03:16:56,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:16:56,545 INFO L225 Difference]: With dead ends: 444 [2022-02-15 03:16:56,545 INFO L226 Difference]: Without dead ends: 289 [2022-02-15 03:16:56,546 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 03:16:56,547 INFO L933 BasicCegarLoop]: 117 mSDtfsCounter, 134 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 64 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 342 SdHoareTripleChecker+Invalid, 538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-02-15 03:16:56,547 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [134 Valid, 342 Invalid, 538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 473 Invalid, 1 Unknown, 0 Unchecked, 2.6s Time] [2022-02-15 03:16:56,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289 states. [2022-02-15 03:16:56,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 199. [2022-02-15 03:16:56,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 194 states have (on average 1.6134020618556701) internal successors, (313), 194 states have internal predecessors, (313), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:16:56,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 317 transitions. [2022-02-15 03:16:56,563 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 317 transitions. Word has length 43 [2022-02-15 03:16:56,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:16:56,564 INFO L470 AbstractCegarLoop]: Abstraction has 199 states and 317 transitions. [2022-02-15 03:16:56,564 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:16:56,564 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 317 transitions. [2022-02-15 03:16:56,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-02-15 03:16:56,565 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:16:56,565 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:16:56,566 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-15 03:16:56,566 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:16:56,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:16:56,566 INFO L85 PathProgramCache]: Analyzing trace with hash 1913847322, now seen corresponding path program 1 times [2022-02-15 03:16:56,566 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:16:56,566 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2066817143] [2022-02-15 03:16:56,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:16:56,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:16:56,570 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:16:56,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:16:56,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:16:56,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:16:56,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:16:56,724 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:16:56,724 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2066817143] [2022-02-15 03:16:56,724 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [2066817143] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:16:56,724 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:16:56,724 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 03:16:56,724 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643632756] [2022-02-15 03:16:56,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:16:56,725 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 03:16:56,726 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:16:56,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 03:16:56,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 03:16:56,727 INFO L87 Difference]: Start difference. First operand 199 states and 317 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:16:58,321 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:17:01,339 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:17:03,041 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:17:04,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:17:04,185 INFO L93 Difference]: Finished difference Result 503 states and 800 transitions. [2022-02-15 03:17:04,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 03:17:04,186 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 49 [2022-02-15 03:17:04,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:17:04,188 INFO L225 Difference]: With dead ends: 503 [2022-02-15 03:17:04,189 INFO L226 Difference]: Without dead ends: 319 [2022-02-15 03:17:04,190 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 03:17:04,191 INFO L933 BasicCegarLoop]: 118 mSDtfsCounter, 123 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 480 mSolverCounterSat, 61 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 480 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2022-02-15 03:17:04,194 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [123 Valid, 344 Invalid, 542 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 480 Invalid, 1 Unknown, 0 Unchecked, 7.4s Time] [2022-02-15 03:17:04,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2022-02-15 03:17:04,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 239. [2022-02-15 03:17:04,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239 states, 234 states have (on average 1.641025641025641) internal successors, (384), 234 states have internal predecessors, (384), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:17:04,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 388 transitions. [2022-02-15 03:17:04,231 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 388 transitions. Word has length 49 [2022-02-15 03:17:04,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:17:04,231 INFO L470 AbstractCegarLoop]: Abstraction has 239 states and 388 transitions. [2022-02-15 03:17:04,232 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:17:04,232 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 388 transitions. [2022-02-15 03:17:04,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-02-15 03:17:04,240 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:17:04,241 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:17:04,241 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-02-15 03:17:04,241 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:17:04,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:17:04,242 INFO L85 PathProgramCache]: Analyzing trace with hash -1017457862, now seen corresponding path program 1 times [2022-02-15 03:17:04,243 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:17:04,244 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1056424659] [2022-02-15 03:17:04,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:17:04,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:17:04,248 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:17:04,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:17:04,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:17:04,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:17:04,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:17:04,425 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:17:04,425 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1056424659] [2022-02-15 03:17:04,425 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1056424659] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:17:04,425 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:17:04,426 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 03:17:04,426 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605882980] [2022-02-15 03:17:04,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:17:04,426 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 03:17:04,426 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:17:04,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 03:17:04,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 03:17:04,427 INFO L87 Difference]: Start difference. First operand 239 states and 388 transitions. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:17:06,355 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:17:08,386 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:17:10,413 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:17:12,088 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:17:12,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:17:12,707 INFO L93 Difference]: Finished difference Result 553 states and 890 transitions. [2022-02-15 03:17:12,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 03:17:12,707 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 50 [2022-02-15 03:17:12,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:17:12,709 INFO L225 Difference]: With dead ends: 553 [2022-02-15 03:17:12,709 INFO L226 Difference]: Without dead ends: 329 [2022-02-15 03:17:12,710 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 03:17:12,714 INFO L933 BasicCegarLoop]: 128 mSDtfsCounter, 122 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 486 mSolverCounterSat, 62 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 364 SdHoareTripleChecker+Invalid, 550 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 486 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2022-02-15 03:17:12,715 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [122 Valid, 364 Invalid, 550 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 486 Invalid, 2 Unknown, 0 Unchecked, 8.2s Time] [2022-02-15 03:17:12,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 329 states. [2022-02-15 03:17:12,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 329 to 250. [2022-02-15 03:17:12,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 250 states, 245 states have (on average 1.653061224489796) internal successors, (405), 245 states have internal predecessors, (405), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:17:12,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 409 transitions. [2022-02-15 03:17:12,739 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 409 transitions. Word has length 50 [2022-02-15 03:17:12,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:17:12,740 INFO L470 AbstractCegarLoop]: Abstraction has 250 states and 409 transitions. [2022-02-15 03:17:12,740 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:17:12,740 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 409 transitions. [2022-02-15 03:17:12,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-02-15 03:17:12,742 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:17:12,742 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:17:12,743 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-02-15 03:17:12,744 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:17:12,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:17:12,747 INFO L85 PathProgramCache]: Analyzing trace with hash -16045120, now seen corresponding path program 1 times [2022-02-15 03:17:12,754 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:17:12,754 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2135521386] [2022-02-15 03:17:12,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:17:12,835 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-15 03:17:12,836 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-02-15 03:17:12,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:17:12,840 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:17:12,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:17:13,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:17:13,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:17:13,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:17:13,063 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:17:13,063 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2135521386] [2022-02-15 03:17:13,064 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [2135521386] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:17:13,064 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:17:13,064 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 03:17:13,064 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889409903] [2022-02-15 03:17:13,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:17:13,065 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 03:17:13,065 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:17:13,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 03:17:13,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 03:17:13,066 INFO L87 Difference]: Start difference. First operand 250 states and 409 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:17:15,083 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:17:15,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:17:15,723 INFO L93 Difference]: Finished difference Result 604 states and 981 transitions. [2022-02-15 03:17:15,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 03:17:15,724 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 70 [2022-02-15 03:17:15,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:17:15,726 INFO L225 Difference]: With dead ends: 604 [2022-02-15 03:17:15,726 INFO L226 Difference]: Without dead ends: 369 [2022-02-15 03:17:15,727 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 03:17:15,728 INFO L933 BasicCegarLoop]: 128 mSDtfsCounter, 135 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 485 mSolverCounterSat, 60 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 364 SdHoareTripleChecker+Invalid, 546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 485 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-02-15 03:17:15,728 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [135 Valid, 364 Invalid, 546 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 485 Invalid, 1 Unknown, 0 Unchecked, 2.6s Time] [2022-02-15 03:17:15,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 369 states. [2022-02-15 03:17:15,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 369 to 276. [2022-02-15 03:17:15,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 276 states, 271 states have (on average 1.6568265682656826) internal successors, (449), 271 states have internal predecessors, (449), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:17:15,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 453 transitions. [2022-02-15 03:17:15,776 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 453 transitions. Word has length 70 [2022-02-15 03:17:15,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:17:15,777 INFO L470 AbstractCegarLoop]: Abstraction has 276 states and 453 transitions. [2022-02-15 03:17:15,777 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:17:15,777 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 453 transitions. [2022-02-15 03:17:15,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-02-15 03:17:15,778 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:17:15,778 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:17:15,778 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-02-15 03:17:15,778 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:17:15,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:17:15,779 INFO L85 PathProgramCache]: Analyzing trace with hash 781922117, now seen corresponding path program 1 times [2022-02-15 03:17:15,779 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:17:15,779 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1703012367] [2022-02-15 03:17:15,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:17:15,802 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-15 03:17:15,802 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-02-15 03:17:15,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:17:15,806 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:17:15,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:17:15,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:17:15,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:17:15,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:17:15,980 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:17:15,980 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1703012367] [2022-02-15 03:17:15,980 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1703012367] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:17:15,980 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:17:15,980 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 03:17:15,980 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368496215] [2022-02-15 03:17:15,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:17:15,981 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 03:17:15,981 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:17:15,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 03:17:15,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 03:17:15,982 INFO L87 Difference]: Start difference. First operand 276 states and 453 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:17:18,005 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:17:20,021 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:17:22,041 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:17:22,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:17:22,635 INFO L93 Difference]: Finished difference Result 616 states and 998 transitions. [2022-02-15 03:17:22,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 03:17:22,636 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 71 [2022-02-15 03:17:22,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:17:22,638 INFO L225 Difference]: With dead ends: 616 [2022-02-15 03:17:22,638 INFO L226 Difference]: Without dead ends: 355 [2022-02-15 03:17:22,639 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 03:17:22,639 INFO L933 BasicCegarLoop]: 146 mSDtfsCounter, 134 mSDsluCounter, 254 mSDsCounter, 0 mSdLazyCounter, 504 mSolverCounterSat, 58 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 400 SdHoareTripleChecker+Invalid, 564 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 504 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2022-02-15 03:17:22,639 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [134 Valid, 400 Invalid, 564 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 504 Invalid, 2 Unknown, 0 Unchecked, 6.6s Time] [2022-02-15 03:17:22,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states. [2022-02-15 03:17:22,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 276. [2022-02-15 03:17:22,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 276 states, 271 states have (on average 1.6457564575645756) internal successors, (446), 271 states have internal predecessors, (446), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:17:22,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 450 transitions. [2022-02-15 03:17:22,684 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 450 transitions. Word has length 71 [2022-02-15 03:17:22,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:17:22,684 INFO L470 AbstractCegarLoop]: Abstraction has 276 states and 450 transitions. [2022-02-15 03:17:22,684 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:17:22,684 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 450 transitions. [2022-02-15 03:17:22,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-02-15 03:17:22,685 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:17:22,685 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:17:22,685 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-02-15 03:17:22,685 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:17:22,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:17:22,686 INFO L85 PathProgramCache]: Analyzing trace with hash -1867037651, now seen corresponding path program 1 times [2022-02-15 03:17:22,686 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:17:22,686 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [608773405] [2022-02-15 03:17:22,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:17:22,693 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-15 03:17:22,693 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-02-15 03:17:22,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:17:22,697 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:17:22,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:17:22,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:17:22,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:17:22,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:17:22,837 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:17:22,837 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [608773405] [2022-02-15 03:17:22,837 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [608773405] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:17:22,837 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:17:22,837 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 03:17:22,838 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607648636] [2022-02-15 03:17:22,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:17:22,838 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 03:17:22,838 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:17:22,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 03:17:22,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 03:17:22,840 INFO L87 Difference]: Start difference. First operand 276 states and 450 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:17:24,388 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:17:26,410 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:17:28,432 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:17:30,455 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:17:30,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:17:30,997 INFO L93 Difference]: Finished difference Result 692 states and 1126 transitions. [2022-02-15 03:17:30,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 03:17:30,998 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 71 [2022-02-15 03:17:30,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:17:31,000 INFO L225 Difference]: With dead ends: 692 [2022-02-15 03:17:31,000 INFO L226 Difference]: Without dead ends: 431 [2022-02-15 03:17:31,001 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 03:17:31,001 INFO L933 BasicCegarLoop]: 153 mSDtfsCounter, 127 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 500 mSolverCounterSat, 48 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 414 SdHoareTripleChecker+Invalid, 551 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 500 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2022-02-15 03:17:31,002 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [127 Valid, 414 Invalid, 551 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 500 Invalid, 3 Unknown, 0 Unchecked, 8.1s Time] [2022-02-15 03:17:31,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 431 states. [2022-02-15 03:17:31,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 431 to 340. [2022-02-15 03:17:31,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 340 states, 335 states have (on average 1.653731343283582) internal successors, (554), 335 states have internal predecessors, (554), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:17:31,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 558 transitions. [2022-02-15 03:17:31,024 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 558 transitions. Word has length 71 [2022-02-15 03:17:31,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:17:31,024 INFO L470 AbstractCegarLoop]: Abstraction has 340 states and 558 transitions. [2022-02-15 03:17:31,024 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:17:31,024 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 558 transitions. [2022-02-15 03:17:31,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-02-15 03:17:31,025 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:17:31,025 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:17:31,026 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-02-15 03:17:31,026 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:17:31,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:17:31,026 INFO L85 PathProgramCache]: Analyzing trace with hash 1020686534, now seen corresponding path program 1 times [2022-02-15 03:17:31,026 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:17:31,026 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1377376974] [2022-02-15 03:17:31,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:17:31,037 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-15 03:17:31,038 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-02-15 03:17:31,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:17:31,042 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:17:31,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:17:31,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:17:31,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:17:31,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:17:31,167 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:17:31,167 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1377376974] [2022-02-15 03:17:31,167 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1377376974] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:17:31,167 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:17:31,167 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 03:17:31,167 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806872065] [2022-02-15 03:17:31,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:17:31,168 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 03:17:31,168 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:17:31,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 03:17:31,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 03:17:31,171 INFO L87 Difference]: Start difference. First operand 340 states and 558 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:17:33,179 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:17:33,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:17:33,754 INFO L93 Difference]: Finished difference Result 784 states and 1276 transitions. [2022-02-15 03:17:33,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 03:17:33,755 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 83 [2022-02-15 03:17:33,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:17:33,757 INFO L225 Difference]: With dead ends: 784 [2022-02-15 03:17:33,757 INFO L226 Difference]: Without dead ends: 459 [2022-02-15 03:17:33,757 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 03:17:33,758 INFO L933 BasicCegarLoop]: 135 mSDtfsCounter, 123 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 492 mSolverCounterSat, 58 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 551 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 492 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-02-15 03:17:33,758 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [123 Valid, 378 Invalid, 551 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 492 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-02-15 03:17:33,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 459 states. [2022-02-15 03:17:33,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 459 to 377. [2022-02-15 03:17:33,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 377 states, 372 states have (on average 1.6559139784946237) internal successors, (616), 372 states have internal predecessors, (616), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:17:33,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 377 states and 620 transitions. [2022-02-15 03:17:33,773 INFO L78 Accepts]: Start accepts. Automaton has 377 states and 620 transitions. Word has length 83 [2022-02-15 03:17:33,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:17:33,773 INFO L470 AbstractCegarLoop]: Abstraction has 377 states and 620 transitions. [2022-02-15 03:17:33,773 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:17:33,773 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 620 transitions. [2022-02-15 03:17:33,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-02-15 03:17:33,774 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:17:33,774 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:17:33,775 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-02-15 03:17:33,775 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:17:33,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:17:33,775 INFO L85 PathProgramCache]: Analyzing trace with hash -1799502110, now seen corresponding path program 1 times [2022-02-15 03:17:33,775 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:17:33,775 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1249704457] [2022-02-15 03:17:33,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:17:33,786 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-15 03:17:33,786 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-02-15 03:17:33,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:17:33,791 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:17:33,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:17:33,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:17:33,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:17:33,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:17:33,893 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:17:33,893 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1249704457] [2022-02-15 03:17:33,893 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1249704457] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:17:33,893 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:17:33,893 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 03:17:33,893 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021151583] [2022-02-15 03:17:33,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:17:33,893 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 03:17:33,893 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:17:33,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 03:17:33,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 03:17:33,894 INFO L87 Difference]: Start difference. First operand 377 states and 620 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) [2022-02-15 03:17:37,117 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:17:38,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:17:38,425 INFO L93 Difference]: Finished difference Result 858 states and 1399 transitions. [2022-02-15 03:17:38,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 03:17:38,426 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 84 [2022-02-15 03:17:38,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:17:38,427 INFO L225 Difference]: With dead ends: 858 [2022-02-15 03:17:38,427 INFO L226 Difference]: Without dead ends: 496 [2022-02-15 03:17:38,428 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 03:17:38,429 INFO L933 BasicCegarLoop]: 147 mSDtfsCounter, 144 mSDsluCounter, 255 mSDsCounter, 0 mSdLazyCounter, 507 mSolverCounterSat, 58 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 402 SdHoareTripleChecker+Invalid, 566 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 507 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-02-15 03:17:38,429 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [144 Valid, 402 Invalid, 566 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 507 Invalid, 1 Unknown, 0 Unchecked, 4.5s Time] [2022-02-15 03:17:38,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 496 states. [2022-02-15 03:17:38,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 496 to 393. [2022-02-15 03:17:38,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 388 states have (on average 1.6391752577319587) internal successors, (636), 388 states have internal predecessors, (636), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:17:38,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 640 transitions. [2022-02-15 03:17:38,447 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 640 transitions. Word has length 84 [2022-02-15 03:17:38,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:17:38,447 INFO L470 AbstractCegarLoop]: Abstraction has 393 states and 640 transitions. [2022-02-15 03:17:38,447 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) [2022-02-15 03:17:38,447 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 640 transitions. [2022-02-15 03:17:38,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-02-15 03:17:38,448 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:17:38,448 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-02-15 03:17:38,448 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-02-15 03:17:38,448 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:17:38,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:17:38,449 INFO L85 PathProgramCache]: Analyzing trace with hash 241595718, now seen corresponding path program 1 times [2022-02-15 03:17:38,449 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:17:38,449 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1249695898] [2022-02-15 03:17:38,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:17:38,460 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-15 03:17:38,460 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-02-15 03:17:38,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:17:38,465 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:17:38,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:17:38,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:17:38,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:17:38,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:17:38,590 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:17:38,590 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1249695898] [2022-02-15 03:17:38,590 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1249695898] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:17:38,590 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:17:38,590 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 03:17:38,590 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914782893] [2022-02-15 03:17:38,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:17:38,591 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 03:17:38,591 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:17:38,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 03:17:38,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 03:17:38,591 INFO L87 Difference]: Start difference. First operand 393 states and 640 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:17:40,600 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:17:40,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:17:40,973 INFO L93 Difference]: Finished difference Result 799 states and 1301 transitions. [2022-02-15 03:17:40,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 03:17:40,974 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 84 [2022-02-15 03:17:40,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:17:40,975 INFO L225 Difference]: With dead ends: 799 [2022-02-15 03:17:40,975 INFO L226 Difference]: Without dead ends: 421 [2022-02-15 03:17:40,976 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 03:17:40,977 INFO L933 BasicCegarLoop]: 186 mSDtfsCounter, 21 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 362 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 481 SdHoareTripleChecker+Invalid, 373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 362 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-02-15 03:17:40,977 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [21 Valid, 481 Invalid, 373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 362 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-02-15 03:17:40,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2022-02-15 03:17:40,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 404. [2022-02-15 03:17:40,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 404 states, 399 states have (on average 1.6390977443609023) internal successors, (654), 399 states have internal predecessors, (654), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:17:40,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 404 states and 658 transitions. [2022-02-15 03:17:40,993 INFO L78 Accepts]: Start accepts. Automaton has 404 states and 658 transitions. Word has length 84 [2022-02-15 03:17:40,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:17:40,993 INFO L470 AbstractCegarLoop]: Abstraction has 404 states and 658 transitions. [2022-02-15 03:17:40,993 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:17:40,993 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states and 658 transitions. [2022-02-15 03:17:40,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-02-15 03:17:40,994 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:17:40,994 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:17:40,994 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-02-15 03:17:40,994 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:17:40,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:17:40,994 INFO L85 PathProgramCache]: Analyzing trace with hash -126051705, now seen corresponding path program 1 times [2022-02-15 03:17:40,994 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:17:40,994 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [671882676] [2022-02-15 03:17:40,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:17:41,005 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-15 03:17:41,005 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-02-15 03:17:41,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:17:41,009 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:17:41,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:17:41,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:17:41,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:17:41,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:17:41,144 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:17:41,144 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [671882676] [2022-02-15 03:17:41,144 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [671882676] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:17:41,144 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:17:41,144 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 03:17:41,144 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886619062] [2022-02-15 03:17:41,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:17:41,144 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 03:17:41,145 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:17:41,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 03:17:41,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 03:17:41,145 INFO L87 Difference]: Start difference. First operand 404 states and 658 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:17:42,293 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:17:45,029 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:17:47,053 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:17:47,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:17:47,589 INFO L93 Difference]: Finished difference Result 861 states and 1390 transitions. [2022-02-15 03:17:47,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 03:17:47,590 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 85 [2022-02-15 03:17:47,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:17:47,592 INFO L225 Difference]: With dead ends: 861 [2022-02-15 03:17:47,592 INFO L226 Difference]: Without dead ends: 483 [2022-02-15 03:17:47,594 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 03:17:47,594 INFO L933 BasicCegarLoop]: 135 mSDtfsCounter, 143 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 494 mSolverCounterSat, 60 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 555 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 494 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2022-02-15 03:17:47,594 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [143 Valid, 378 Invalid, 555 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 494 Invalid, 1 Unknown, 0 Unchecked, 6.4s Time] [2022-02-15 03:17:47,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2022-02-15 03:17:47,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 404. [2022-02-15 03:17:47,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 404 states, 399 states have (on average 1.619047619047619) internal successors, (646), 399 states have internal predecessors, (646), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:17:47,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 404 states and 650 transitions. [2022-02-15 03:17:47,614 INFO L78 Accepts]: Start accepts. Automaton has 404 states and 650 transitions. Word has length 85 [2022-02-15 03:17:47,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:17:47,614 INFO L470 AbstractCegarLoop]: Abstraction has 404 states and 650 transitions. [2022-02-15 03:17:47,614 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:17:47,614 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states and 650 transitions. [2022-02-15 03:17:47,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-02-15 03:17:47,615 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:17:47,615 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:17:47,615 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-02-15 03:17:47,616 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:17:47,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:17:47,616 INFO L85 PathProgramCache]: Analyzing trace with hash -1192210051, now seen corresponding path program 1 times [2022-02-15 03:17:47,616 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:17:47,616 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1667657141] [2022-02-15 03:17:47,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:17:47,656 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-15 03:17:47,656 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-02-15 03:17:47,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:17:47,660 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:17:47,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:17:47,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:17:47,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:17:47,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:17:47,759 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:17:47,759 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1667657141] [2022-02-15 03:17:47,759 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1667657141] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:17:47,759 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:17:47,759 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 03:17:47,759 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780371214] [2022-02-15 03:17:47,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:17:47,759 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 03:17:47,759 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:17:47,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 03:17:47,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 03:17:47,760 INFO L87 Difference]: Start difference. First operand 404 states and 650 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:17:49,768 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:17:50,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:17:50,267 INFO L93 Difference]: Finished difference Result 860 states and 1374 transitions. [2022-02-15 03:17:50,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 03:17:50,268 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 98 [2022-02-15 03:17:50,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:17:50,269 INFO L225 Difference]: With dead ends: 860 [2022-02-15 03:17:50,270 INFO L226 Difference]: Without dead ends: 482 [2022-02-15 03:17:50,270 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 03:17:50,271 INFO L933 BasicCegarLoop]: 136 mSDtfsCounter, 148 mSDsluCounter, 244 mSDsCounter, 0 mSdLazyCounter, 489 mSolverCounterSat, 59 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 549 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 489 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-02-15 03:17:50,271 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 380 Invalid, 549 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 489 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-02-15 03:17:50,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 482 states. [2022-02-15 03:17:50,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 482 to 404. [2022-02-15 03:17:50,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 404 states, 399 states have (on average 1.5964912280701755) internal successors, (637), 399 states have internal predecessors, (637), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:17:50,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 404 states and 641 transitions. [2022-02-15 03:17:50,289 INFO L78 Accepts]: Start accepts. Automaton has 404 states and 641 transitions. Word has length 98 [2022-02-15 03:17:50,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:17:50,289 INFO L470 AbstractCegarLoop]: Abstraction has 404 states and 641 transitions. [2022-02-15 03:17:50,289 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:17:50,289 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states and 641 transitions. [2022-02-15 03:17:50,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-02-15 03:17:50,292 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:17:50,292 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:17:50,292 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-02-15 03:17:50,292 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:17:50,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:17:50,293 INFO L85 PathProgramCache]: Analyzing trace with hash 96471313, now seen corresponding path program 1 times [2022-02-15 03:17:50,293 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:17:50,293 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1912914311] [2022-02-15 03:17:50,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:17:50,309 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-15 03:17:50,309 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-02-15 03:17:50,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:17:50,313 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:17:50,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:17:50,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:17:50,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:17:50,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:17:50,421 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:17:50,421 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1912914311] [2022-02-15 03:17:50,422 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1912914311] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:17:50,422 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:17:50,422 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 03:17:50,422 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767948331] [2022-02-15 03:17:50,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:17:50,422 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 03:17:50,422 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:17:50,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 03:17:50,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 03:17:50,422 INFO L87 Difference]: Start difference. First operand 404 states and 641 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:17:51,926 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 [] [2022-02-15 03:17:55,436 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:17:55,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:17:55,953 INFO L93 Difference]: Finished difference Result 860 states and 1357 transitions. [2022-02-15 03:17:55,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 03:17:55,953 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 98 [2022-02-15 03:17:55,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:17:55,955 INFO L225 Difference]: With dead ends: 860 [2022-02-15 03:17:55,955 INFO L226 Difference]: Without dead ends: 482 [2022-02-15 03:17:55,956 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 03:17:55,956 INFO L933 BasicCegarLoop]: 135 mSDtfsCounter, 146 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 491 mSolverCounterSat, 59 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 551 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 491 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-02-15 03:17:55,957 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [146 Valid, 378 Invalid, 551 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 491 Invalid, 1 Unknown, 0 Unchecked, 5.5s Time] [2022-02-15 03:17:55,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 482 states. [2022-02-15 03:17:55,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 482 to 404. [2022-02-15 03:17:55,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 404 states, 399 states have (on average 1.5739348370927317) internal successors, (628), 399 states have internal predecessors, (628), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:17:55,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 404 states and 632 transitions. [2022-02-15 03:17:55,976 INFO L78 Accepts]: Start accepts. Automaton has 404 states and 632 transitions. Word has length 98 [2022-02-15 03:17:55,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:17:55,976 INFO L470 AbstractCegarLoop]: Abstraction has 404 states and 632 transitions. [2022-02-15 03:17:55,976 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:17:55,976 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states and 632 transitions. [2022-02-15 03:17:55,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-02-15 03:17:55,977 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:17:55,977 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-02-15 03:17:55,977 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-02-15 03:17:55,977 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:17:55,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:17:55,978 INFO L85 PathProgramCache]: Analyzing trace with hash 290247469, now seen corresponding path program 1 times [2022-02-15 03:17:55,978 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:17:55,978 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1807947810] [2022-02-15 03:17:55,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:17:55,994 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-15 03:17:55,994 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-02-15 03:17:55,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:17:55,998 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:17:56,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:17:56,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:17:56,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:17:56,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:17:56,094 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:17:56,094 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1807947810] [2022-02-15 03:17:56,094 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1807947810] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:17:56,094 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:17:56,095 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 03:17:56,095 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116133545] [2022-02-15 03:17:56,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:17:56,095 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 03:17:56,095 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:17:56,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 03:17:56,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 03:17:56,096 INFO L87 Difference]: Start difference. First operand 404 states and 632 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:17:58,524 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:18:00,241 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:18:00,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:18:00,775 INFO L93 Difference]: Finished difference Result 859 states and 1339 transitions. [2022-02-15 03:18:00,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 03:18:00,775 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 98 [2022-02-15 03:18:00,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:18:00,777 INFO L225 Difference]: With dead ends: 859 [2022-02-15 03:18:00,777 INFO L226 Difference]: Without dead ends: 481 [2022-02-15 03:18:00,778 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 03:18:00,779 INFO L933 BasicCegarLoop]: 137 mSDtfsCounter, 139 mSDsluCounter, 245 mSDsCounter, 0 mSdLazyCounter, 490 mSolverCounterSat, 58 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 549 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 490 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-02-15 03:18:00,779 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [139 Valid, 382 Invalid, 549 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 490 Invalid, 1 Unknown, 0 Unchecked, 4.6s Time] [2022-02-15 03:18:00,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2022-02-15 03:18:00,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 404. [2022-02-15 03:18:00,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 404 states, 399 states have (on average 1.5538847117794485) internal successors, (620), 399 states have internal predecessors, (620), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:18:00,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 404 states and 624 transitions. [2022-02-15 03:18:00,870 INFO L78 Accepts]: Start accepts. Automaton has 404 states and 624 transitions. Word has length 98 [2022-02-15 03:18:00,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:18:00,870 INFO L470 AbstractCegarLoop]: Abstraction has 404 states and 624 transitions. [2022-02-15 03:18:00,870 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:18:00,870 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states and 624 transitions. [2022-02-15 03:18:00,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-02-15 03:18:00,872 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:18:00,872 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:18:00,872 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-02-15 03:18:00,872 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:18:00,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:18:00,872 INFO L85 PathProgramCache]: Analyzing trace with hash -849305930, now seen corresponding path program 1 times [2022-02-15 03:18:00,873 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:18:00,873 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [90577561] [2022-02-15 03:18:00,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:18:00,893 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-15 03:18:00,893 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-02-15 03:18:00,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:18:00,897 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:18:00,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:18:00,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:18:00,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:18:00,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:18:00,986 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:18:00,986 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [90577561] [2022-02-15 03:18:00,986 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [90577561] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:18:00,986 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:18:00,986 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 03:18:00,986 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860265613] [2022-02-15 03:18:00,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:18:00,986 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 03:18:00,987 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:18:00,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 03:18:00,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 03:18:00,987 INFO L87 Difference]: Start difference. First operand 404 states and 624 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:18:02,614 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:18:04,631 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:18:06,663 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:18:07,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:18:07,252 INFO L93 Difference]: Finished difference Result 859 states and 1324 transitions. [2022-02-15 03:18:07,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 03:18:07,252 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 99 [2022-02-15 03:18:07,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:18:07,254 INFO L225 Difference]: With dead ends: 859 [2022-02-15 03:18:07,255 INFO L226 Difference]: Without dead ends: 481 [2022-02-15 03:18:07,256 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 03:18:07,256 INFO L933 BasicCegarLoop]: 137 mSDtfsCounter, 143 mSDsluCounter, 245 mSDsCounter, 0 mSdLazyCounter, 489 mSolverCounterSat, 58 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 549 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 489 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-02-15 03:18:07,256 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [143 Valid, 382 Invalid, 549 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 489 Invalid, 2 Unknown, 0 Unchecked, 6.2s Time] [2022-02-15 03:18:07,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2022-02-15 03:18:07,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 404. [2022-02-15 03:18:07,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 404 states, 399 states have (on average 1.531328320802005) internal successors, (611), 399 states have internal predecessors, (611), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:18:07,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 404 states and 615 transitions. [2022-02-15 03:18:07,281 INFO L78 Accepts]: Start accepts. Automaton has 404 states and 615 transitions. Word has length 99 [2022-02-15 03:18:07,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:18:07,281 INFO L470 AbstractCegarLoop]: Abstraction has 404 states and 615 transitions. [2022-02-15 03:18:07,281 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:18:07,282 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states and 615 transitions. [2022-02-15 03:18:07,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-02-15 03:18:07,283 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:18:07,283 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:18:07,283 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-02-15 03:18:07,283 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:18:07,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:18:07,285 INFO L85 PathProgramCache]: Analyzing trace with hash 1546742710, now seen corresponding path program 1 times [2022-02-15 03:18:07,285 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:18:07,285 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1255987627] [2022-02-15 03:18:07,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:18:07,304 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-15 03:18:07,304 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-02-15 03:18:07,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:18:07,308 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:18:07,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:18:07,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:18:07,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:18:07,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:18:07,451 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:18:07,451 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1255987627] [2022-02-15 03:18:07,451 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1255987627] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:18:07,451 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:18:07,451 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 03:18:07,451 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676150739] [2022-02-15 03:18:07,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:18:07,452 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 03:18:07,452 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:18:07,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 03:18:07,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 03:18:07,452 INFO L87 Difference]: Start difference. First operand 404 states and 615 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:18:09,033 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:18:11,060 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:18:13,080 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:18:15,099 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:18:15,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:18:15,519 INFO L93 Difference]: Finished difference Result 795 states and 1215 transitions. [2022-02-15 03:18:15,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 03:18:15,519 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 100 [2022-02-15 03:18:15,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:18:15,521 INFO L225 Difference]: With dead ends: 795 [2022-02-15 03:18:15,521 INFO L226 Difference]: Without dead ends: 417 [2022-02-15 03:18:15,522 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 03:18:15,522 INFO L933 BasicCegarLoop]: 191 mSDtfsCounter, 20 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 353 mSolverCounterSat, 8 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 491 SdHoareTripleChecker+Invalid, 364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 353 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2022-02-15 03:18:15,522 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 491 Invalid, 364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 353 Invalid, 3 Unknown, 0 Unchecked, 8.0s Time] [2022-02-15 03:18:15,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states. [2022-02-15 03:18:15,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 404. [2022-02-15 03:18:15,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 404 states, 399 states have (on average 1.5288220551378446) internal successors, (610), 399 states have internal predecessors, (610), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:18:15,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 404 states and 614 transitions. [2022-02-15 03:18:15,545 INFO L78 Accepts]: Start accepts. Automaton has 404 states and 614 transitions. Word has length 100 [2022-02-15 03:18:15,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:18:15,546 INFO L470 AbstractCegarLoop]: Abstraction has 404 states and 614 transitions. [2022-02-15 03:18:15,546 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:18:15,546 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states and 614 transitions. [2022-02-15 03:18:15,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-02-15 03:18:15,547 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:18:15,547 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:18:15,547 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-02-15 03:18:15,548 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:18:15,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:18:15,548 INFO L85 PathProgramCache]: Analyzing trace with hash 165211323, now seen corresponding path program 1 times [2022-02-15 03:18:15,548 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:18:15,548 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [324977898] [2022-02-15 03:18:15,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:18:15,568 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-15 03:18:15,568 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-02-15 03:18:15,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:18:15,576 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:18:15,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:18:15,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:18:15,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:18:15,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:18:15,667 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:18:15,667 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [324977898] [2022-02-15 03:18:15,667 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [324977898] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:18:15,667 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:18:15,667 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 03:18:15,667 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894308187] [2022-02-15 03:18:15,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:18:15,668 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 03:18:15,668 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:18:15,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 03:18:15,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 03:18:15,668 INFO L87 Difference]: Start difference. First operand 404 states and 614 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:18:17,173 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:18:18,771 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:18:20,043 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:18:20,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:18:20,436 INFO L93 Difference]: Finished difference Result 785 states and 1201 transitions. [2022-02-15 03:18:20,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 03:18:20,437 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 101 [2022-02-15 03:18:20,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:18:20,438 INFO L225 Difference]: With dead ends: 785 [2022-02-15 03:18:20,439 INFO L226 Difference]: Without dead ends: 407 [2022-02-15 03:18:20,440 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 03:18:20,440 INFO L933 BasicCegarLoop]: 198 mSDtfsCounter, 11 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 342 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 505 SdHoareTripleChecker+Invalid, 346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 342 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-02-15 03:18:20,441 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 505 Invalid, 346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 342 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2022-02-15 03:18:20,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 407 states. [2022-02-15 03:18:20,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 407 to 404. [2022-02-15 03:18:20,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 404 states, 399 states have (on average 1.5263157894736843) internal successors, (609), 399 states have internal predecessors, (609), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:18:20,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 404 states and 613 transitions. [2022-02-15 03:18:20,511 INFO L78 Accepts]: Start accepts. Automaton has 404 states and 613 transitions. Word has length 101 [2022-02-15 03:18:20,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:18:20,512 INFO L470 AbstractCegarLoop]: Abstraction has 404 states and 613 transitions. [2022-02-15 03:18:20,512 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:18:20,512 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states and 613 transitions. [2022-02-15 03:18:20,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-02-15 03:18:20,513 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:18:20,513 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:18:20,513 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-02-15 03:18:20,513 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:18:20,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:18:20,514 INFO L85 PathProgramCache]: Analyzing trace with hash -406696696, now seen corresponding path program 1 times [2022-02-15 03:18:20,514 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:18:20,514 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1004046745] [2022-02-15 03:18:20,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:18:20,536 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-15 03:18:20,536 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-02-15 03:18:20,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:18:20,542 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:18:20,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:18:20,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:18:20,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:18:20,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:18:20,654 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:18:20,654 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1004046745] [2022-02-15 03:18:20,654 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1004046745] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:18:20,655 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:18:20,655 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 03:18:20,655 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825265784] [2022-02-15 03:18:20,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:18:20,655 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 03:18:20,655 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:18:20,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 03:18:20,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 03:18:20,655 INFO L87 Difference]: Start difference. First operand 404 states and 613 transitions. Second operand has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:18:22,671 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:18:23,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:18:23,264 INFO L93 Difference]: Finished difference Result 859 states and 1305 transitions. [2022-02-15 03:18:23,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 03:18:23,264 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 101 [2022-02-15 03:18:23,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:18:23,266 INFO L225 Difference]: With dead ends: 859 [2022-02-15 03:18:23,266 INFO L226 Difference]: Without dead ends: 481 [2022-02-15 03:18:23,267 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 03:18:23,268 INFO L933 BasicCegarLoop]: 119 mSDtfsCounter, 118 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 469 mSolverCounterSat, 62 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 469 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-02-15 03:18:23,268 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [118 Valid, 346 Invalid, 532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 469 Invalid, 1 Unknown, 0 Unchecked, 2.6s Time] [2022-02-15 03:18:23,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2022-02-15 03:18:23,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 404. [2022-02-15 03:18:23,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 404 states, 399 states have (on average 1.5213032581453634) internal successors, (607), 399 states have internal predecessors, (607), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:18:23,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 404 states and 611 transitions. [2022-02-15 03:18:23,307 INFO L78 Accepts]: Start accepts. Automaton has 404 states and 611 transitions. Word has length 101 [2022-02-15 03:18:23,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:18:23,307 INFO L470 AbstractCegarLoop]: Abstraction has 404 states and 611 transitions. [2022-02-15 03:18:23,307 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:18:23,307 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states and 611 transitions. [2022-02-15 03:18:23,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 03:18:23,308 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:18:23,309 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 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] [2022-02-15 03:18:23,309 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-02-15 03:18:23,309 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:18:23,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:18:23,309 INFO L85 PathProgramCache]: Analyzing trace with hash -1639371162, now seen corresponding path program 1 times [2022-02-15 03:18:23,309 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:18:23,309 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1258510527] [2022-02-15 03:18:23,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:18:23,341 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-15 03:18:23,342 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-02-15 03:18:23,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:18:23,350 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:18:23,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:18:23,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:18:23,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:18:23,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:18:23,510 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:18:23,510 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1258510527] [2022-02-15 03:18:23,511 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1258510527] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:18:23,511 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:18:23,511 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 03:18:23,511 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341816606] [2022-02-15 03:18:23,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:18:23,511 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 03:18:23,511 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:18:23,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 03:18:23,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 03:18:23,512 INFO L87 Difference]: Start difference. First operand 404 states and 611 transitions. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:18:25,530 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:18:25,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:18:25,905 INFO L93 Difference]: Finished difference Result 821 states and 1248 transitions. [2022-02-15 03:18:25,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 03:18:25,905 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 109 [2022-02-15 03:18:25,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:18:25,907 INFO L225 Difference]: With dead ends: 821 [2022-02-15 03:18:25,907 INFO L226 Difference]: Without dead ends: 443 [2022-02-15 03:18:25,908 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 03:18:25,908 INFO L933 BasicCegarLoop]: 198 mSDtfsCounter, 28 mSDsluCounter, 313 mSDsCounter, 0 mSdLazyCounter, 386 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 511 SdHoareTripleChecker+Invalid, 396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 386 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-02-15 03:18:25,909 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 511 Invalid, 396 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 386 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-02-15 03:18:25,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443 states. [2022-02-15 03:18:25,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 426. [2022-02-15 03:18:25,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 426 states, 421 states have (on average 1.517814726840855) internal successors, (639), 421 states have internal predecessors, (639), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:18:25,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 426 states to 426 states and 643 transitions. [2022-02-15 03:18:25,938 INFO L78 Accepts]: Start accepts. Automaton has 426 states and 643 transitions. Word has length 109 [2022-02-15 03:18:25,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:18:25,939 INFO L470 AbstractCegarLoop]: Abstraction has 426 states and 643 transitions. [2022-02-15 03:18:25,939 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:18:25,939 INFO L276 IsEmpty]: Start isEmpty. Operand 426 states and 643 transitions. [2022-02-15 03:18:25,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-02-15 03:18:25,940 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:18:25,940 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:18:25,940 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-02-15 03:18:25,940 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:18:25,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:18:25,940 INFO L85 PathProgramCache]: Analyzing trace with hash -373719176, now seen corresponding path program 1 times [2022-02-15 03:18:25,941 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:18:25,941 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [997047291] [2022-02-15 03:18:25,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:18:25,963 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-15 03:18:25,963 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-02-15 03:18:25,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:18:25,968 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:18:26,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:18:26,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:18:26,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:18:26,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:18:26,074 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:18:26,074 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [997047291] [2022-02-15 03:18:26,074 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [997047291] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:18:26,074 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:18:26,074 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-15 03:18:26,074 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378813014] [2022-02-15 03:18:26,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:18:26,075 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-15 03:18:26,075 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:18:26,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-15 03:18:26,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-02-15 03:18:26,075 INFO L87 Difference]: Start difference. First operand 426 states and 643 transitions. Second operand has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:18:27,731 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 [] [2022-02-15 03:18:30,115 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:18:32,423 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:18:33,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:18:33,105 INFO L93 Difference]: Finished difference Result 836 states and 1269 transitions. [2022-02-15 03:18:33,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-15 03:18:33,105 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 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 117 [2022-02-15 03:18:33,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:18:33,107 INFO L225 Difference]: With dead ends: 836 [2022-02-15 03:18:33,107 INFO L226 Difference]: Without dead ends: 436 [2022-02-15 03:18:33,108 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-02-15 03:18:33,109 INFO L933 BasicCegarLoop]: 117 mSDtfsCounter, 150 mSDsluCounter, 254 mSDsCounter, 0 mSdLazyCounter, 525 mSolverCounterSat, 43 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 371 SdHoareTripleChecker+Invalid, 570 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 525 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2022-02-15 03:18:33,109 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [150 Valid, 371 Invalid, 570 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 525 Invalid, 2 Unknown, 0 Unchecked, 6.9s Time] [2022-02-15 03:18:33,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 436 states. [2022-02-15 03:18:33,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 436 to 435. [2022-02-15 03:18:33,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 435 states, 430 states have (on average 1.5116279069767442) internal successors, (650), 430 states have internal predecessors, (650), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:18:33,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 435 states to 435 states and 654 transitions. [2022-02-15 03:18:33,145 INFO L78 Accepts]: Start accepts. Automaton has 435 states and 654 transitions. Word has length 117 [2022-02-15 03:18:33,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:18:33,146 INFO L470 AbstractCegarLoop]: Abstraction has 435 states and 654 transitions. [2022-02-15 03:18:33,146 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:18:33,146 INFO L276 IsEmpty]: Start isEmpty. Operand 435 states and 654 transitions. [2022-02-15 03:18:33,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-02-15 03:18:33,147 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:18:33,148 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:18:33,148 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-02-15 03:18:33,148 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:18:33,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:18:33,148 INFO L85 PathProgramCache]: Analyzing trace with hash 1996588357, now seen corresponding path program 1 times [2022-02-15 03:18:33,148 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:18:33,148 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1228500286] [2022-02-15 03:18:33,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:18:33,186 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-15 03:18:33,186 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-02-15 03:18:33,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:18:33,192 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:18:33,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:18:33,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:18:33,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:18:33,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:18:33,314 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:18:33,315 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1228500286] [2022-02-15 03:18:33,315 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1228500286] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:18:33,315 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:18:33,315 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 03:18:33,315 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484773370] [2022-02-15 03:18:33,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:18:33,315 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 03:18:33,316 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:18:33,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 03:18:33,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 03:18:33,317 INFO L87 Difference]: Start difference. First operand 435 states and 654 transitions. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:18:35,340 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:18:35,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:18:35,742 INFO L93 Difference]: Finished difference Result 861 states and 1300 transitions. [2022-02-15 03:18:35,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 03:18:35,746 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 126 [2022-02-15 03:18:35,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:18:35,748 INFO L225 Difference]: With dead ends: 861 [2022-02-15 03:18:35,748 INFO L226 Difference]: Without dead ends: 452 [2022-02-15 03:18:35,749 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 03:18:35,761 INFO L933 BasicCegarLoop]: 200 mSDtfsCounter, 35 mSDsluCounter, 313 mSDsCounter, 0 mSdLazyCounter, 383 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 513 SdHoareTripleChecker+Invalid, 393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 383 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-15 03:18:35,764 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [35 Valid, 513 Invalid, 393 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 383 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-15 03:18:35,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 452 states. [2022-02-15 03:18:35,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 452 to 435. [2022-02-15 03:18:35,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 435 states, 430 states have (on average 1.5093023255813953) internal successors, (649), 430 states have internal predecessors, (649), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:18:35,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 435 states to 435 states and 653 transitions. [2022-02-15 03:18:35,848 INFO L78 Accepts]: Start accepts. Automaton has 435 states and 653 transitions. Word has length 126 [2022-02-15 03:18:35,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:18:35,848 INFO L470 AbstractCegarLoop]: Abstraction has 435 states and 653 transitions. [2022-02-15 03:18:35,848 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:18:35,848 INFO L276 IsEmpty]: Start isEmpty. Operand 435 states and 653 transitions. [2022-02-15 03:18:35,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2022-02-15 03:18:35,863 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:18:35,863 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:18:35,864 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-02-15 03:18:35,864 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:18:35,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:18:35,864 INFO L85 PathProgramCache]: Analyzing trace with hash 1346444452, now seen corresponding path program 1 times [2022-02-15 03:18:35,864 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:18:35,864 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1833048403] [2022-02-15 03:18:35,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:18:35,923 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-15 03:18:35,923 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-02-15 03:18:35,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:18:35,929 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:18:35,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:18:36,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:18:36,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:18:36,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:18:36,037 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:18:36,037 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1833048403] [2022-02-15 03:18:36,037 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1833048403] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:18:36,037 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:18:36,037 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 03:18:36,037 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464411491] [2022-02-15 03:18:36,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:18:36,038 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 03:18:36,038 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:18:36,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 03:18:36,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 03:18:36,038 INFO L87 Difference]: Start difference. First operand 435 states and 653 transitions. Second operand has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:18:37,244 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:18:39,871 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:18:41,364 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:18:41,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:18:41,859 INFO L93 Difference]: Finished difference Result 921 states and 1384 transitions. [2022-02-15 03:18:41,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 03:18:41,868 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 127 [2022-02-15 03:18:41,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:18:41,870 INFO L225 Difference]: With dead ends: 921 [2022-02-15 03:18:41,870 INFO L226 Difference]: Without dead ends: 512 [2022-02-15 03:18:41,872 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 03:18:41,873 INFO L933 BasicCegarLoop]: 123 mSDtfsCounter, 140 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 60 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 354 SdHoareTripleChecker+Invalid, 534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-02-15 03:18:41,873 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [140 Valid, 354 Invalid, 534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 473 Invalid, 1 Unknown, 0 Unchecked, 5.8s Time] [2022-02-15 03:18:41,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 512 states. [2022-02-15 03:18:41,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 512 to 435. [2022-02-15 03:18:41,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 435 states, 430 states have (on average 1.4883720930232558) internal successors, (640), 430 states have internal predecessors, (640), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:18:41,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 435 states to 435 states and 644 transitions. [2022-02-15 03:18:41,900 INFO L78 Accepts]: Start accepts. Automaton has 435 states and 644 transitions. Word has length 127 [2022-02-15 03:18:41,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:18:41,900 INFO L470 AbstractCegarLoop]: Abstraction has 435 states and 644 transitions. [2022-02-15 03:18:41,900 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:18:41,900 INFO L276 IsEmpty]: Start isEmpty. Operand 435 states and 644 transitions. [2022-02-15 03:18:41,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-02-15 03:18:41,901 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:18:41,901 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:18:41,901 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-02-15 03:18:41,902 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:18:41,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:18:41,902 INFO L85 PathProgramCache]: Analyzing trace with hash -881988740, now seen corresponding path program 1 times [2022-02-15 03:18:41,902 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:18:41,902 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1074918566] [2022-02-15 03:18:41,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:18:41,956 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-15 03:18:41,956 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-02-15 03:18:41,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:18:41,962 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:18:42,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:18:42,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:18:42,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:18:42,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:18:42,110 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:18:42,110 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1074918566] [2022-02-15 03:18:42,110 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1074918566] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:18:42,110 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:18:42,110 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 03:18:42,110 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454002240] [2022-02-15 03:18:42,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:18:42,111 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 03:18:42,111 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:18:42,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 03:18:42,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 03:18:42,111 INFO L87 Difference]: Start difference. First operand 435 states and 644 transitions. Second operand has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:18:44,761 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:18:47,294 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:18:47,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:18:47,787 INFO L93 Difference]: Finished difference Result 924 states and 1369 transitions. [2022-02-15 03:18:47,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 03:18:47,788 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 131 [2022-02-15 03:18:47,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:18:47,789 INFO L225 Difference]: With dead ends: 924 [2022-02-15 03:18:47,789 INFO L226 Difference]: Without dead ends: 515 [2022-02-15 03:18:47,790 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 03:18:47,790 INFO L933 BasicCegarLoop]: 201 mSDtfsCounter, 73 mSDsluCounter, 316 mSDsCounter, 0 mSdLazyCounter, 484 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 517 SdHoareTripleChecker+Invalid, 496 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 484 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-02-15 03:18:47,791 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [73 Valid, 517 Invalid, 496 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 484 Invalid, 1 Unknown, 0 Unchecked, 5.6s Time] [2022-02-15 03:18:47,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 515 states. [2022-02-15 03:18:47,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 515 to 461. [2022-02-15 03:18:47,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 461 states, 456 states have (on average 1.4846491228070176) internal successors, (677), 456 states have internal predecessors, (677), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:18:47,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 461 states to 461 states and 681 transitions. [2022-02-15 03:18:47,818 INFO L78 Accepts]: Start accepts. Automaton has 461 states and 681 transitions. Word has length 131 [2022-02-15 03:18:47,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:18:47,818 INFO L470 AbstractCegarLoop]: Abstraction has 461 states and 681 transitions. [2022-02-15 03:18:47,819 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:18:47,819 INFO L276 IsEmpty]: Start isEmpty. Operand 461 states and 681 transitions. [2022-02-15 03:18:47,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-02-15 03:18:47,820 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:18:47,820 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:18:47,821 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-02-15 03:18:47,821 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:18:47,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:18:47,822 INFO L85 PathProgramCache]: Analyzing trace with hash -1134050048, now seen corresponding path program 1 times [2022-02-15 03:18:47,822 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:18:47,822 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [658193038] [2022-02-15 03:18:47,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:18:47,852 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-15 03:18:47,853 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-02-15 03:18:47,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:18:47,890 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:18:47,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:18:47,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:18:47,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:18:47,997 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:18:47,997 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:18:47,997 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [658193038] [2022-02-15 03:18:47,997 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [658193038] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:18:47,998 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:18:47,998 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 03:18:47,998 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541863799] [2022-02-15 03:18:47,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:18:47,998 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 03:18:47,998 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:18:47,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 03:18:47,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 03:18:47,999 INFO L87 Difference]: Start difference. First operand 461 states and 681 transitions. Second operand has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:18:50,445 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:18:52,291 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:18:54,213 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 [] [2022-02-15 03:18:54,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:18:54,710 INFO L93 Difference]: Finished difference Result 944 states and 1396 transitions. [2022-02-15 03:18:54,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 03:18:54,710 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 131 [2022-02-15 03:18:54,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:18:54,713 INFO L225 Difference]: With dead ends: 944 [2022-02-15 03:18:54,713 INFO L226 Difference]: Without dead ends: 509 [2022-02-15 03:18:54,714 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 [2022-02-15 03:18:54,714 INFO L933 BasicCegarLoop]: 204 mSDtfsCounter, 47 mSDsluCounter, 319 mSDsCounter, 0 mSdLazyCounter, 478 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 523 SdHoareTripleChecker+Invalid, 490 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 478 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2022-02-15 03:18:54,714 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [47 Valid, 523 Invalid, 490 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 478 Invalid, 1 Unknown, 0 Unchecked, 6.6s Time] [2022-02-15 03:18:54,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 509 states. [2022-02-15 03:18:54,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 509 to 478. [2022-02-15 03:18:54,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 478 states, 473 states have (on average 1.482029598308668) internal successors, (701), 473 states have internal predecessors, (701), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:18:54,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 478 states to 478 states and 705 transitions. [2022-02-15 03:18:54,758 INFO L78 Accepts]: Start accepts. Automaton has 478 states and 705 transitions. Word has length 131 [2022-02-15 03:18:54,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:18:54,759 INFO L470 AbstractCegarLoop]: Abstraction has 478 states and 705 transitions. [2022-02-15 03:18:54,759 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:18:54,759 INFO L276 IsEmpty]: Start isEmpty. Operand 478 states and 705 transitions. [2022-02-15 03:18:54,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-02-15 03:18:54,760 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:18:54,760 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:18:54,760 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-02-15 03:18:54,760 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:18:54,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:18:54,761 INFO L85 PathProgramCache]: Analyzing trace with hash 442867454, now seen corresponding path program 1 times [2022-02-15 03:18:54,761 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:18:54,761 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1031721255] [2022-02-15 03:18:54,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:18:54,797 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-15 03:18:54,797 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-02-15 03:18:54,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:18:54,806 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:18:54,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:18:54,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:18:54,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:18:54,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:18:54,976 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:18:54,976 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1031721255] [2022-02-15 03:18:54,976 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1031721255] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:18:54,976 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:18:54,976 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-15 03:18:54,976 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049291249] [2022-02-15 03:18:54,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:18:54,977 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-15 03:18:54,977 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:18:54,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-15 03:18:54,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-15 03:18:54,977 INFO L87 Difference]: Start difference. First operand 478 states and 705 transitions. Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 3 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:18:56,065 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:18:58,086 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:18:59,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:18:59,083 INFO L93 Difference]: Finished difference Result 1377 states and 2051 transitions. [2022-02-15 03:18:59,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-15 03:18:59,084 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 3 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 131 [2022-02-15 03:18:59,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:18:59,086 INFO L225 Difference]: With dead ends: 1377 [2022-02-15 03:18:59,087 INFO L226 Difference]: Without dead ends: 925 [2022-02-15 03:18:59,088 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-15 03:18:59,088 INFO L933 BasicCegarLoop]: 241 mSDtfsCounter, 136 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 283 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 435 SdHoareTripleChecker+Invalid, 295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 283 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-02-15 03:18:59,088 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [136 Valid, 435 Invalid, 295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 283 Invalid, 1 Unknown, 0 Unchecked, 4.0s Time] [2022-02-15 03:18:59,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 925 states. [2022-02-15 03:18:59,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 925 to 925. [2022-02-15 03:18:59,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 925 states, 920 states have (on average 1.4804347826086957) internal successors, (1362), 920 states have internal predecessors, (1362), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:18:59,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 925 states to 925 states and 1366 transitions. [2022-02-15 03:18:59,159 INFO L78 Accepts]: Start accepts. Automaton has 925 states and 1366 transitions. Word has length 131 [2022-02-15 03:18:59,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:18:59,160 INFO L470 AbstractCegarLoop]: Abstraction has 925 states and 1366 transitions. [2022-02-15 03:18:59,160 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 3 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:18:59,160 INFO L276 IsEmpty]: Start isEmpty. Operand 925 states and 1366 transitions. [2022-02-15 03:18:59,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-02-15 03:18:59,191 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:18:59,191 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:18:59,191 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-02-15 03:18:59,191 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:18:59,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:18:59,192 INFO L85 PathProgramCache]: Analyzing trace with hash -1975617024, now seen corresponding path program 1 times [2022-02-15 03:18:59,192 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:18:59,192 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1703720205] [2022-02-15 03:18:59,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:18:59,224 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-15 03:18:59,224 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-02-15 03:18:59,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:18:59,232 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:18:59,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:18:59,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:18:59,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:18:59,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:18:59,321 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:18:59,321 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1703720205] [2022-02-15 03:18:59,322 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1703720205] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:18:59,322 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:18:59,322 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-15 03:18:59,322 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983156621] [2022-02-15 03:18:59,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:18:59,322 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-15 03:18:59,322 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:18:59,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-15 03:18:59,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-15 03:18:59,323 INFO L87 Difference]: Start difference. First operand 925 states and 1366 transitions. Second operand has 4 states, 4 states have (on average 22.25) internal successors, (89), 3 states have internal predecessors, (89), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:19:01,901 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:19:02,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:19:02,282 INFO L93 Difference]: Finished difference Result 1851 states and 2739 transitions. [2022-02-15 03:19:02,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-15 03:19:02,282 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.25) internal successors, (89), 3 states have internal predecessors, (89), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 131 [2022-02-15 03:19:02,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:19:02,285 INFO L225 Difference]: With dead ends: 1851 [2022-02-15 03:19:02,285 INFO L226 Difference]: Without dead ends: 952 [2022-02-15 03:19:02,287 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-15 03:19:02,288 INFO L933 BasicCegarLoop]: 223 mSDtfsCounter, 15 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 417 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-02-15 03:19:02,288 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 417 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-02-15 03:19:02,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 952 states. [2022-02-15 03:19:02,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 952 to 952. [2022-02-15 03:19:02,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 952 states, 947 states have (on average 1.4751847940865892) internal successors, (1397), 947 states have internal predecessors, (1397), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:19:02,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 952 states to 952 states and 1401 transitions. [2022-02-15 03:19:02,397 INFO L78 Accepts]: Start accepts. Automaton has 952 states and 1401 transitions. Word has length 131 [2022-02-15 03:19:02,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:19:02,397 INFO L470 AbstractCegarLoop]: Abstraction has 952 states and 1401 transitions. [2022-02-15 03:19:02,398 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.25) internal successors, (89), 3 states have internal predecessors, (89), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:19:02,398 INFO L276 IsEmpty]: Start isEmpty. Operand 952 states and 1401 transitions. [2022-02-15 03:19:02,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-02-15 03:19:02,400 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:19:02,403 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:19:02,404 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-02-15 03:19:02,404 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:19:02,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:19:02,404 INFO L85 PathProgramCache]: Analyzing trace with hash -1857175550, now seen corresponding path program 1 times [2022-02-15 03:19:02,404 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:19:02,404 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [962407191] [2022-02-15 03:19:02,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:19:02,449 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-15 03:19:02,449 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-02-15 03:19:02,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:19:02,455 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:19:02,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:19:02,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:19:02,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:19:02,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:19:02,531 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:19:02,531 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [962407191] [2022-02-15 03:19:02,531 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [962407191] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:19:02,531 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:19:02,531 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-15 03:19:02,531 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150242547] [2022-02-15 03:19:02,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:19:02,533 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-15 03:19:02,533 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:19:02,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-15 03:19:02,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-15 03:19:02,533 INFO L87 Difference]: Start difference. First operand 952 states and 1401 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 3 states have internal predecessors, (73), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:19:03,762 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:19:04,844 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:19:06,862 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:19:07,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:19:07,590 INFO L93 Difference]: Finished difference Result 1880 states and 2775 transitions. [2022-02-15 03:19:07,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-15 03:19:07,591 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 3 states have internal predecessors, (73), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 131 [2022-02-15 03:19:07,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:19:07,594 INFO L225 Difference]: With dead ends: 1880 [2022-02-15 03:19:07,594 INFO L226 Difference]: Without dead ends: 954 [2022-02-15 03:19:07,596 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-15 03:19:07,596 INFO L933 BasicCegarLoop]: 211 mSDtfsCounter, 4 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 396 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-02-15 03:19:07,597 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 396 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 235 Invalid, 1 Unknown, 0 Unchecked, 4.9s Time] [2022-02-15 03:19:07,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 954 states. [2022-02-15 03:19:07,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 954 to 954. [2022-02-15 03:19:07,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 954 states, 949 states have (on average 1.4741833508956796) internal successors, (1399), 949 states have internal predecessors, (1399), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:19:07,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 954 states to 954 states and 1403 transitions. [2022-02-15 03:19:07,802 INFO L78 Accepts]: Start accepts. Automaton has 954 states and 1403 transitions. Word has length 131 [2022-02-15 03:19:07,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:19:07,802 INFO L470 AbstractCegarLoop]: Abstraction has 954 states and 1403 transitions. [2022-02-15 03:19:07,802 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 3 states have internal predecessors, (73), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:19:07,802 INFO L276 IsEmpty]: Start isEmpty. Operand 954 states and 1403 transitions. [2022-02-15 03:19:07,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-02-15 03:19:07,804 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:19:07,805 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:19:07,806 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-02-15 03:19:07,806 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:19:07,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:19:07,806 INFO L85 PathProgramCache]: Analyzing trace with hash 1541930600, now seen corresponding path program 1 times [2022-02-15 03:19:07,806 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:19:07,806 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1497859661] [2022-02-15 03:19:07,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:19:07,845 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-15 03:19:07,845 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-02-15 03:19:07,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:19:07,852 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:19:07,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:19:07,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:19:07,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:19:07,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:19:07,947 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:19:07,947 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1497859661] [2022-02-15 03:19:07,947 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1497859661] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:19:07,947 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:19:07,947 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-15 03:19:07,947 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668766907] [2022-02-15 03:19:07,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:19:07,948 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-15 03:19:07,948 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:19:07,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-15 03:19:07,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-15 03:19:07,949 INFO L87 Difference]: Start difference. First operand 954 states and 1403 transitions. Second operand has 4 states, 4 states have (on average 20.75) internal successors, (83), 3 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:19:10,347 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:19:11,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:19:11,447 INFO L93 Difference]: Finished difference Result 2332 states and 3449 transitions. [2022-02-15 03:19:11,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-15 03:19:11,448 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 3 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 133 [2022-02-15 03:19:11,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:19:11,451 INFO L225 Difference]: With dead ends: 2332 [2022-02-15 03:19:11,451 INFO L226 Difference]: Without dead ends: 1406 [2022-02-15 03:19:11,453 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-15 03:19:11,454 INFO L933 BasicCegarLoop]: 195 mSDtfsCounter, 157 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 15 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-02-15 03:19:11,454 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [157 Valid, 380 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 246 Invalid, 1 Unknown, 0 Unchecked, 3.4s Time] [2022-02-15 03:19:11,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1406 states. [2022-02-15 03:19:11,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1406 to 1404. [2022-02-15 03:19:11,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1404 states, 1399 states have (on average 1.4803431022158684) internal successors, (2071), 1399 states have internal predecessors, (2071), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:19:11,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1404 states to 1404 states and 2075 transitions. [2022-02-15 03:19:11,553 INFO L78 Accepts]: Start accepts. Automaton has 1404 states and 2075 transitions. Word has length 133 [2022-02-15 03:19:11,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:19:11,554 INFO L470 AbstractCegarLoop]: Abstraction has 1404 states and 2075 transitions. [2022-02-15 03:19:11,554 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 3 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:19:11,554 INFO L276 IsEmpty]: Start isEmpty. Operand 1404 states and 2075 transitions. [2022-02-15 03:19:11,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-02-15 03:19:11,556 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:19:11,556 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:19:11,556 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-02-15 03:19:11,556 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:19:11,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:19:11,557 INFO L85 PathProgramCache]: Analyzing trace with hash -1653660413, now seen corresponding path program 1 times [2022-02-15 03:19:11,557 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:19:11,557 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1863648066] [2022-02-15 03:19:11,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:19:11,608 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-15 03:19:11,608 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-02-15 03:19:11,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:19:11,617 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:19:11,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:19:12,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:19:12,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:19:12,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:19:12,069 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:19:12,069 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1863648066] [2022-02-15 03:19:12,069 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1863648066] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:19:12,069 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:19:12,069 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-02-15 03:19:12,069 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158724002] [2022-02-15 03:19:12,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:19:12,071 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-15 03:19:12,071 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:19:12,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-15 03:19:12,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-02-15 03:19:12,072 INFO L87 Difference]: Start difference. First operand 1404 states and 2075 transitions. Second operand has 7 states, 6 states have (on average 11.0) internal successors, (66), 5 states have internal predecessors, (66), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:19:13,682 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:19:15,705 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:19:19,110 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:19:21,133 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:19:21,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:19:21,922 INFO L93 Difference]: Finished difference Result 2801 states and 4142 transitions. [2022-02-15 03:19:21,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-15 03:19:21,922 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 11.0) internal successors, (66), 5 states have internal predecessors, (66), 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 134 [2022-02-15 03:19:21,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:19:21,932 INFO L225 Difference]: With dead ends: 2801 [2022-02-15 03:19:21,932 INFO L226 Difference]: Without dead ends: 1404 [2022-02-15 03:19:21,937 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-02-15 03:19:21,941 INFO L933 BasicCegarLoop]: 209 mSDtfsCounter, 7 mSDsluCounter, 633 mSDsCounter, 0 mSdLazyCounter, 441 mSolverCounterSat, 4 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 842 SdHoareTripleChecker+Invalid, 448 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 441 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.7s IncrementalHoareTripleChecker+Time [2022-02-15 03:19:21,941 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 842 Invalid, 448 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 441 Invalid, 3 Unknown, 0 Unchecked, 9.7s Time] [2022-02-15 03:19:21,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1404 states. [2022-02-15 03:19:22,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1404 to 1404. [2022-02-15 03:19:22,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1404 states, 1399 states have (on average 1.4796283059328093) internal successors, (2070), 1399 states have internal predecessors, (2070), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:19:22,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1404 states to 1404 states and 2074 transitions. [2022-02-15 03:19:22,066 INFO L78 Accepts]: Start accepts. Automaton has 1404 states and 2074 transitions. Word has length 134 [2022-02-15 03:19:22,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:19:22,066 INFO L470 AbstractCegarLoop]: Abstraction has 1404 states and 2074 transitions. [2022-02-15 03:19:22,066 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 11.0) internal successors, (66), 5 states have internal predecessors, (66), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:19:22,066 INFO L276 IsEmpty]: Start isEmpty. Operand 1404 states and 2074 transitions. [2022-02-15 03:19:22,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-02-15 03:19:22,069 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:19:22,069 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:19:22,069 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-02-15 03:19:22,069 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:19:22,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:19:22,070 INFO L85 PathProgramCache]: Analyzing trace with hash 2056535233, now seen corresponding path program 1 times [2022-02-15 03:19:22,070 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:19:22,070 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1242347421] [2022-02-15 03:19:22,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:19:22,097 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-15 03:19:22,098 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-02-15 03:19:22,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:19:22,106 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:19:22,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-15 03:19:22,625 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-15 03:19:22,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-15 03:19:23,038 INFO L138 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2022-02-15 03:19:23,039 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-02-15 03:19:23,044 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-02-15 03:19:23,045 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-02-15 03:19:23,052 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] [2022-02-15 03:19:23,054 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-15 03:19:23,119 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.02 03:19:23 BoogieIcfgContainer [2022-02-15 03:19:23,119 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-15 03:19:23,119 INFO L158 Benchmark]: Toolchain (without parser) took 158134.12ms. Allocated memory was 178.3MB in the beginning and 289.4MB in the end (delta: 111.1MB). Free memory was 121.4MB in the beginning and 201.4MB in the end (delta: -80.0MB). Peak memory consumption was 158.7MB. Max. memory is 8.0GB. [2022-02-15 03:19:23,120 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 178.3MB. Free memory is still 140.0MB. There was no memory consumed. Max. memory is 8.0GB. [2022-02-15 03:19:23,120 INFO L158 Benchmark]: CACSL2BoogieTranslator took 575.31ms. Allocated memory was 178.3MB in the beginning and 241.2MB in the end (delta: 62.9MB). Free memory was 121.3MB in the beginning and 193.0MB in the end (delta: -71.7MB). Peak memory consumption was 12.4MB. Max. memory is 8.0GB. [2022-02-15 03:19:23,120 INFO L158 Benchmark]: Boogie Preprocessor took 113.12ms. Allocated memory is still 241.2MB. Free memory was 193.0MB in the beginning and 185.1MB in the end (delta: 7.9MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. [2022-02-15 03:19:23,120 INFO L158 Benchmark]: RCFGBuilder took 1751.11ms. Allocated memory is still 241.2MB. Free memory was 185.1MB in the beginning and 174.0MB in the end (delta: 11.1MB). Peak memory consumption was 49.9MB. Max. memory is 8.0GB. [2022-02-15 03:19:23,120 INFO L158 Benchmark]: TraceAbstraction took 155686.75ms. Allocated memory was 241.2MB in the beginning and 289.4MB in the end (delta: 48.2MB). Free memory was 173.5MB in the beginning and 201.4MB in the end (delta: -28.0MB). Peak memory consumption was 147.2MB. Max. memory is 8.0GB. [2022-02-15 03:19:23,121 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 178.3MB. Free memory is still 140.0MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 575.31ms. Allocated memory was 178.3MB in the beginning and 241.2MB in the end (delta: 62.9MB). Free memory was 121.3MB in the beginning and 193.0MB in the end (delta: -71.7MB). Peak memory consumption was 12.4MB. Max. memory is 8.0GB. * Boogie Preprocessor took 113.12ms. Allocated memory is still 241.2MB. Free memory was 193.0MB in the beginning and 185.1MB in the end (delta: 7.9MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. * RCFGBuilder took 1751.11ms. Allocated memory is still 241.2MB. Free memory was 185.1MB in the beginning and 174.0MB in the end (delta: 11.1MB). Peak memory consumption was 49.9MB. Max. memory is 8.0GB. * TraceAbstraction took 155686.75ms. Allocated memory was 241.2MB in the beginning and 289.4MB in the end (delta: 48.2MB). Free memory was 173.5MB in the beginning and 201.4MB in the end (delta: -28.0MB). Peak memory consumption was 147.2MB. 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: 1757]: 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 1475. 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() [L1105] CALL ssl3_accept(s) [L1111] BUF_MEM *buf ; [L1112] unsigned long l ; [L1113] unsigned long Time ; [L1114] unsigned long tmp ; [L1115] void (*cb)() ; [L1116] long num1 ; [L1117] int ret ; [L1118] int new_state ; [L1119] int state ; [L1120] int skip ; [L1121] int got_new_session ; [L1122] int tmp___1 = __VERIFIER_nondet_int() ; [L1123] int tmp___2 = __VERIFIER_nondet_int() ; [L1124] int tmp___3 = __VERIFIER_nondet_int() ; [L1125] int tmp___4 = __VERIFIER_nondet_int() ; [L1126] int tmp___5 = __VERIFIER_nondet_int() ; [L1127] int tmp___6 = __VERIFIER_nondet_int() ; [L1128] int tmp___7 ; [L1129] long tmp___8 = __VERIFIER_nondet_long() ; [L1130] int tmp___9 = __VERIFIER_nondet_int() ; [L1131] int tmp___10 = __VERIFIER_nondet_int() ; [L1132] int blastFlag ; [L1136] s->state = 8464 [L1137] blastFlag = 0 [L1138] s->hit=__VERIFIER_nondet_int () [L1139] s->state = 8464 [L1140] tmp = __VERIFIER_nondet_int() [L1141] Time = tmp [L1142] cb = (void (*)())((void *)0) [L1143] ret = -1 [L1144] skip = 0 [L1145] got_new_session = 0 [L1146] EXPR s->info_callback [L1146] COND TRUE (unsigned long )s->info_callback != (unsigned long )((void *)0) [L1147] EXPR s->info_callback [L1147] cb = s->info_callback [L1151] EXPR s->in_handshake [L1151] s->in_handshake += 1 [L1152] COND FALSE !(tmp___1 & 12288) [L1161] EXPR s->cert [L1161] COND FALSE !((unsigned long )s->cert == (unsigned long )((void *)0)) [L1167] COND TRUE 1 [L1169] EXPR s->state [L1169] state = s->state [L1170] EXPR s->state [L1170] COND FALSE !(s->state == 12292) [L1173] EXPR s->state [L1173] COND FALSE !(s->state == 16384) [L1176] EXPR s->state [L1176] COND FALSE !(s->state == 8192) [L1179] EXPR s->state [L1179] COND FALSE !(s->state == 24576) [L1182] EXPR s->state [L1182] COND FALSE !(s->state == 8195) [L1185] EXPR s->state [L1185] COND FALSE !(s->state == 8480) [L1188] EXPR s->state [L1188] COND FALSE !(s->state == 8481) [L1191] EXPR s->state [L1191] COND FALSE !(s->state == 8482) [L1194] EXPR s->state [L1194] COND TRUE s->state == 8464 [L1354] s->shutdown = 0 [L1355] ret = __VERIFIER_nondet_int() [L1356] COND TRUE blastFlag == 0 [L1357] blastFlag = 1 [L1361] COND FALSE !(ret <= 0) [L1366] got_new_session = 1 [L1367] s->state = 8496 [L1368] s->init_num = 0 [L1716] EXPR s->s3 [L1716] EXPR (s->s3)->tmp.reuse_message [L1716] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1745] skip = 0 [L1167] COND TRUE 1 [L1169] EXPR s->state [L1169] state = s->state [L1170] EXPR s->state [L1170] COND FALSE !(s->state == 12292) [L1173] EXPR s->state [L1173] COND FALSE !(s->state == 16384) [L1176] EXPR s->state [L1176] COND FALSE !(s->state == 8192) [L1179] EXPR s->state [L1179] COND FALSE !(s->state == 24576) [L1182] EXPR s->state [L1182] COND FALSE !(s->state == 8195) [L1185] EXPR s->state [L1185] COND FALSE !(s->state == 8480) [L1188] EXPR s->state [L1188] COND FALSE !(s->state == 8481) [L1191] EXPR s->state [L1191] COND FALSE !(s->state == 8482) [L1194] EXPR s->state [L1194] COND FALSE !(s->state == 8464) [L1197] EXPR s->state [L1197] COND FALSE !(s->state == 8465) [L1200] EXPR s->state [L1200] COND FALSE !(s->state == 8466) [L1203] EXPR s->state [L1203] COND TRUE s->state == 8496 [L1372] ret = __VERIFIER_nondet_int() [L1373] COND TRUE blastFlag == 1 [L1374] blastFlag = 2 [L1378] COND FALSE !(ret <= 0) [L1383] s->hit [L1383] COND FALSE !(s->hit) [L1386] s->state = 8512 [L1388] s->init_num = 0 [L1716] EXPR s->s3 [L1716] EXPR (s->s3)->tmp.reuse_message [L1716] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1745] skip = 0 [L1167] COND TRUE 1 [L1169] EXPR s->state [L1169] state = s->state [L1170] EXPR s->state [L1170] COND FALSE !(s->state == 12292) [L1173] EXPR s->state [L1173] COND FALSE !(s->state == 16384) [L1176] EXPR s->state [L1176] COND FALSE !(s->state == 8192) [L1179] EXPR s->state [L1179] COND FALSE !(s->state == 24576) [L1182] EXPR s->state [L1182] COND FALSE !(s->state == 8195) [L1185] EXPR s->state [L1185] COND FALSE !(s->state == 8480) [L1188] EXPR s->state [L1188] COND FALSE !(s->state == 8481) [L1191] EXPR s->state [L1191] COND FALSE !(s->state == 8482) [L1194] EXPR s->state [L1194] COND FALSE !(s->state == 8464) [L1197] EXPR s->state [L1197] COND FALSE !(s->state == 8465) [L1200] EXPR s->state [L1200] COND FALSE !(s->state == 8466) [L1203] EXPR s->state [L1203] COND FALSE !(s->state == 8496) [L1206] EXPR s->state [L1206] COND FALSE !(s->state == 8497) [L1209] EXPR s->state [L1209] COND TRUE s->state == 8512 [L1392] EXPR s->s3 [L1392] EXPR (s->s3)->tmp.new_cipher [L1392] EXPR ((s->s3)->tmp.new_cipher)->algorithms [L1392] COND FALSE !(((s->s3)->tmp.new_cipher)->algorithms & 256UL) [L1395] ret = __VERIFIER_nondet_int() [L1396] COND TRUE blastFlag == 2 [L1397] blastFlag = 6 [L1401] COND FALSE !(ret <= 0) [L1407] s->state = 8528 [L1408] s->init_num = 0 [L1716] EXPR s->s3 [L1716] EXPR (s->s3)->tmp.reuse_message [L1716] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1745] skip = 0 [L1167] COND TRUE 1 [L1169] EXPR s->state [L1169] state = s->state [L1170] EXPR s->state [L1170] COND FALSE !(s->state == 12292) [L1173] EXPR s->state [L1173] COND FALSE !(s->state == 16384) [L1176] EXPR s->state [L1176] COND FALSE !(s->state == 8192) [L1179] EXPR s->state [L1179] COND FALSE !(s->state == 24576) [L1182] EXPR s->state [L1182] COND FALSE !(s->state == 8195) [L1185] EXPR s->state [L1185] COND FALSE !(s->state == 8480) [L1188] EXPR s->state [L1188] COND FALSE !(s->state == 8481) [L1191] EXPR s->state [L1191] COND FALSE !(s->state == 8482) [L1194] EXPR s->state [L1194] COND FALSE !(s->state == 8464) [L1197] EXPR s->state [L1197] COND FALSE !(s->state == 8465) [L1200] EXPR s->state [L1200] COND FALSE !(s->state == 8466) [L1203] EXPR s->state [L1203] COND FALSE !(s->state == 8496) [L1206] EXPR s->state [L1206] COND FALSE !(s->state == 8497) [L1209] EXPR s->state [L1209] COND FALSE !(s->state == 8512) [L1212] EXPR s->state [L1212] COND FALSE !(s->state == 8513) [L1215] EXPR s->state [L1215] COND TRUE s->state == 8528 [L1412] EXPR s->s3 [L1412] EXPR (s->s3)->tmp.new_cipher [L1412] EXPR ((s->s3)->tmp.new_cipher)->algorithms [L1412] l = ((s->s3)->tmp.new_cipher)->algorithms [L1413] EXPR s->options [L1413] COND TRUE s->options & 2097152UL [L1414] EXPR s->s3 [L1414] (s->s3)->tmp.use_rsa_tmp = 1 [L1418] EXPR s->s3 [L1418] (s->s3)->tmp.use_rsa_tmp [L1418] COND TRUE (s->s3)->tmp.use_rsa_tmp [L1436] ret = __VERIFIER_nondet_int() [L1437] COND TRUE blastFlag == 6 [L1438] blastFlag = 7 [L1442] COND FALSE !(ret <= 0) [L1459] s->state = 8544 [L1460] s->init_num = 0 [L1716] EXPR s->s3 [L1716] EXPR (s->s3)->tmp.reuse_message [L1716] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1745] skip = 0 [L1167] COND TRUE 1 [L1169] EXPR s->state [L1169] state = s->state [L1170] EXPR s->state [L1170] COND FALSE !(s->state == 12292) [L1173] EXPR s->state [L1173] COND FALSE !(s->state == 16384) [L1176] EXPR s->state [L1176] COND FALSE !(s->state == 8192) [L1179] EXPR s->state [L1179] COND FALSE !(s->state == 24576) [L1182] EXPR s->state [L1182] COND FALSE !(s->state == 8195) [L1185] EXPR s->state [L1185] COND FALSE !(s->state == 8480) [L1188] EXPR s->state [L1188] COND FALSE !(s->state == 8481) [L1191] EXPR s->state [L1191] COND FALSE !(s->state == 8482) [L1194] EXPR s->state [L1194] COND FALSE !(s->state == 8464) [L1197] EXPR s->state [L1197] COND FALSE !(s->state == 8465) [L1200] EXPR s->state [L1200] COND FALSE !(s->state == 8466) [L1203] EXPR s->state [L1203] COND FALSE !(s->state == 8496) [L1206] EXPR s->state [L1206] COND FALSE !(s->state == 8497) [L1209] EXPR s->state [L1209] COND FALSE !(s->state == 8512) [L1212] EXPR s->state [L1212] COND FALSE !(s->state == 8513) [L1215] EXPR s->state [L1215] COND FALSE !(s->state == 8528) [L1218] EXPR s->state [L1218] COND FALSE !(s->state == 8529) [L1221] EXPR s->state [L1221] COND TRUE s->state == 8544 [L1464] EXPR s->verify_mode [L1464] COND TRUE s->verify_mode & 1 [L1465] EXPR s->session [L1465] EXPR (s->session)->peer [L1465] COND FALSE !((unsigned long )(s->session)->peer != (unsigned long )((void *)0)) [L1475] EXPR s->s3 [L1475] EXPR (s->s3)->tmp.new_cipher [L1475] EXPR ((s->s3)->tmp.new_cipher)->algorithms [L1475] COND FALSE !(((s->s3)->tmp.new_cipher)->algorithms & 256UL) [L1485] EXPR s->s3 [L1485] (s->s3)->tmp.cert_request = 1 [L1486] ret = __VERIFIER_nondet_int() [L1487] COND TRUE blastFlag == 7 [L1757] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 10 procedures, 189 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 155.6s, OverallIterations: 30, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 147.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 36 mSolverCounterUnknown, 2890 SdHoareTripleChecker+Valid, 145.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2890 mSDsluCounter, 12451 SdHoareTripleChecker+Invalid, 140.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 7726 mSDsCounter, 1089 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 12623 IncrementalHoareTripleChecker+Invalid, 13748 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1089 mSolverCounterUnsat, 4725 mSDtfsCounter, 12623 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 223 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 114 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1404occurred in iteration=28, InterpolantAutomatonStates: 146, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.4s AutomataMinimizationTime, 29 MinimizatonAttempts, 1486 StatesRemovedByMinimization, 25 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 [2022-02-15 03:19:23,162 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...