/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/loops/s3.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05ce600 [2022-02-24 01:12:31,738 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-24 01:12:31,744 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-24 01:12:31,793 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-24 01:12:31,793 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-24 01:12:31,796 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-24 01:12:31,799 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-24 01:12:31,801 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-24 01:12:31,803 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-24 01:12:31,807 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-24 01:12:31,808 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-24 01:12:31,809 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-24 01:12:31,809 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-24 01:12:31,811 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-24 01:12:31,812 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-24 01:12:31,816 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-24 01:12:31,817 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-24 01:12:31,818 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-24 01:12:31,821 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-24 01:12:31,822 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-24 01:12:31,823 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-24 01:12:31,825 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-24 01:12:31,827 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-24 01:12:31,828 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-24 01:12:31,834 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-02-24 01:12:31,840 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-24 01:12:31,840 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-24 01:12:31,841 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-24 01:12:31,842 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationJordan_32.epf [2022-02-24 01:12:31,855 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-24 01:12:31,856 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-24 01:12:31,857 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-24 01:12:31,858 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-24 01:12:31,858 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-24 01:12:31,858 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-24 01:12:31,858 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-24 01:12:31,858 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-24 01:12:31,858 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-24 01:12:31,858 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-24 01:12:31,859 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-24 01:12:31,859 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-24 01:12:31,859 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-24 01:12:31,859 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-24 01:12:31,860 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-24 01:12:31,860 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-24 01:12:31,860 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-24 01:12:31,860 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-24 01:12:31,860 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-24 01:12:31,860 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-24 01:12:31,860 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2022-02-24 01:12:31,860 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-24 01:12:31,861 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=JORDAN [2022-02-24 01:12:31,861 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-02-24 01:12:32,074 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-24 01:12:32,103 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-24 01:12:32,105 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-24 01:12:32,106 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-24 01:12:32,111 INFO L275 PluginConnector]: CDTParser initialized [2022-02-24 01:12:32,113 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/s3.i [2022-02-24 01:12:32,182 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c33f694fd/168e2d5bc22c4a37848c5149c6222d39/FLAGf48201851 [2022-02-24 01:12:32,616 INFO L306 CDTParser]: Found 1 translation units. [2022-02-24 01:12:32,616 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/s3.i [2022-02-24 01:12:32,636 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c33f694fd/168e2d5bc22c4a37848c5149c6222d39/FLAGf48201851 [2022-02-24 01:12:32,659 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c33f694fd/168e2d5bc22c4a37848c5149c6222d39 [2022-02-24 01:12:32,660 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-24 01:12:32,661 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-02-24 01:12:32,663 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-24 01:12:32,663 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-24 01:12:32,678 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-24 01:12:32,679 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 01:12:32" (1/1) ... [2022-02-24 01:12:32,679 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79b551e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 01:12:32, skipping insertion in model container [2022-02-24 01:12:32,680 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 01:12:32" (1/1) ... [2022-02-24 01:12:32,688 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-24 01:12:32,735 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-24 01:12:33,048 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loops/s3.i[64167,64180] [2022-02-24 01:12:33,071 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-24 01:12:33,079 INFO L203 MainTranslator]: Completed pre-run [2022-02-24 01:12:33,177 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loops/s3.i[64167,64180] [2022-02-24 01:12:33,179 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-24 01:12:33,198 INFO L208 MainTranslator]: Completed translation [2022-02-24 01:12:33,199 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 01:12:33 WrapperNode [2022-02-24 01:12:33,199 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-24 01:12:33,199 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-24 01:12:33,200 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-24 01:12:33,200 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-24 01:12:33,208 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 01:12:33" (1/1) ... [2022-02-24 01:12:33,209 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 01:12:33" (1/1) ... [2022-02-24 01:12:33,237 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 01:12:33" (1/1) ... [2022-02-24 01:12:33,237 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 01:12:33" (1/1) ... [2022-02-24 01:12:33,289 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 01:12:33" (1/1) ... [2022-02-24 01:12:33,302 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 01:12:33" (1/1) ... [2022-02-24 01:12:33,304 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 01:12:33" (1/1) ... [2022-02-24 01:12:33,308 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-24 01:12:33,308 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-24 01:12:33,309 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-24 01:12:33,309 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-24 01:12:33,314 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 01:12:33" (1/1) ... [2022-02-24 01:12:33,335 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-24 01:12:33,343 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-24 01:12:33,353 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-02-24 01:12:33,371 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-02-24 01:12:33,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-02-24 01:12:33,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-24 01:12:33,392 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-02-24 01:12:33,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_client_method [2022-02-24 01:12:33,393 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_client_method [2022-02-24 01:12:33,393 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-02-24 01:12:33,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_connect [2022-02-24 01:12:33,393 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-02-24 01:12:33,394 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-02-24 01:12:33,394 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-02-24 01:12:33,394 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-02-24 01:12:33,394 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-02-24 01:12:33,394 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-02-24 01:12:33,394 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-24 01:12:33,395 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-02-24 01:12:33,396 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-02-24 01:12:33,396 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-02-24 01:12:33,396 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-02-24 01:12:33,396 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-02-24 01:12:33,396 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_client_method [2022-02-24 01:12:33,397 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-02-24 01:12:33,397 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_connect [2022-02-24 01:12:33,397 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_client_method [2022-02-24 01:12:33,397 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-02-24 01:12:33,397 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-02-24 01:12:33,397 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-02-24 01:12:33,397 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-02-24 01:12:33,397 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-02-24 01:12:33,397 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-24 01:12:33,397 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-24 01:12:33,397 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-02-24 01:12:33,397 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-02-24 01:12:33,397 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-02-24 01:12:33,398 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-24 01:12:33,398 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-24 01:12:33,398 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-02-24 01:12:33,398 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-02-24 01:12:33,398 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-02-24 01:12:33,398 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-02-24 01:12:33,398 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-24 01:12:33,574 INFO L234 CfgBuilder]: Building ICFG [2022-02-24 01:12:33,576 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-24 01:12:34,269 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-02-24 01:12:34,542 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2022-02-24 01:12:34,542 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2022-02-24 01:12:34,560 INFO L275 CfgBuilder]: Performing block encoding [2022-02-24 01:12:34,567 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-24 01:12:34,568 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-02-24 01:12:34,569 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 01:12:34 BoogieIcfgContainer [2022-02-24 01:12:34,569 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-24 01:12:34,571 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-24 01:12:34,571 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-24 01:12:34,573 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-24 01:12:34,573 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.02 01:12:32" (1/3) ... [2022-02-24 01:12:34,574 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@651cdcdd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 01:12:34, skipping insertion in model container [2022-02-24 01:12:34,574 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 01:12:33" (2/3) ... [2022-02-24 01:12:34,574 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@651cdcdd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 01:12:34, skipping insertion in model container [2022-02-24 01:12:34,574 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 01:12:34" (3/3) ... [2022-02-24 01:12:34,576 INFO L111 eAbstractionObserver]: Analyzing ICFG s3.i [2022-02-24 01:12:34,580 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-02-24 01:12:34,580 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-24 01:12:34,610 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-24 01:12:34,614 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 [2022-02-24 01:12:34,614 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-02-24 01:12:34,624 INFO L276 IsEmpty]: Start isEmpty. Operand has 140 states, 132 states have (on average 1.6742424242424243) internal successors, (221), 133 states have internal predecessors, (221), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-02-24 01:12:34,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-02-24 01:12:34,637 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:12:34,637 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] [2022-02-24 01:12:34,638 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:12:34,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:12:34,642 INFO L85 PathProgramCache]: Analyzing trace with hash -1896540148, now seen corresponding path program 1 times [2022-02-24 01:12:34,648 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:12:34,648 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1093458488] [2022-02-24 01:12:34,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:12:34,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:12:34,720 INFO L213 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-24 01:12:35,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:12:35,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:12:35,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:12:35,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 01:12:35,210 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:12:35,210 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1093458488] [2022-02-24 01:12:35,211 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1093458488] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:12:35,211 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:12:35,212 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-24 01:12:35,212 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567870777] [2022-02-24 01:12:35,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:12:35,216 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-24 01:12:35,216 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:12:35,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-24 01:12:35,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 01:12:35,241 INFO L87 Difference]: Start difference. First operand has 140 states, 132 states have (on average 1.6742424242424243) internal successors, (221), 133 states have internal predecessors, (221), 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 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:12:37,289 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:12:37,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:12:37,740 INFO L93 Difference]: Finished difference Result 385 states and 637 transitions. [2022-02-24 01:12:37,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-24 01:12:37,744 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (3), 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 30 [2022-02-24 01:12:37,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:12:37,759 INFO L225 Difference]: With dead ends: 385 [2022-02-24 01:12:37,759 INFO L226 Difference]: Without dead ends: 223 [2022-02-24 01:12:37,761 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 01:12:37,764 INFO L933 BasicCegarLoop]: 215 mSDtfsCounter, 179 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 237 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 419 SdHoareTripleChecker+Invalid, 245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 237 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-24 01:12:37,764 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [179 Valid, 419 Invalid, 245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 237 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-24 01:12:37,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2022-02-24 01:12:37,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 223. [2022-02-24 01:12:37,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 223 states, 218 states have (on average 1.481651376146789) internal successors, (323), 218 states have internal predecessors, (323), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:12:37,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 327 transitions. [2022-02-24 01:12:37,807 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 327 transitions. Word has length 30 [2022-02-24 01:12:37,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:12:37,807 INFO L470 AbstractCegarLoop]: Abstraction has 223 states and 327 transitions. [2022-02-24 01:12:37,808 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:12:37,808 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 327 transitions. [2022-02-24 01:12:37,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-02-24 01:12:37,809 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:12:37,809 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:12:37,810 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-24 01:12:37,810 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:12:37,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:12:37,810 INFO L85 PathProgramCache]: Analyzing trace with hash 969835136, now seen corresponding path program 1 times [2022-02-24 01:12:37,810 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:12:37,811 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1930658896] [2022-02-24 01:12:37,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:12:37,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:12:37,832 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:12:37,833 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-02-24 01:12:37,833 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:12:37,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:12:38,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:12:38,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:12:38,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 01:12:38,009 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:12:38,009 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1930658896] [2022-02-24 01:12:38,009 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1930658896] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:12:38,010 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:12:38,010 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-24 01:12:38,010 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761515859] [2022-02-24 01:12:38,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:12:38,011 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-24 01:12:38,011 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:12:38,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-24 01:12:38,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 01:12:38,012 INFO L87 Difference]: Start difference. First operand 223 states and 327 transitions. Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:12:40,028 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:12:40,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:12:40,440 INFO L93 Difference]: Finished difference Result 432 states and 642 transitions. [2022-02-24 01:12:40,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-24 01:12:40,440 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (3), 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 45 [2022-02-24 01:12:40,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:12:40,442 INFO L225 Difference]: With dead ends: 432 [2022-02-24 01:12:40,442 INFO L226 Difference]: Without dead ends: 325 [2022-02-24 01:12:40,443 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 01:12:40,444 INFO L933 BasicCegarLoop]: 312 mSDtfsCounter, 126 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 336 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 476 SdHoareTripleChecker+Invalid, 344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 336 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-24 01:12:40,444 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [126 Valid, 476 Invalid, 344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 336 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-24 01:12:40,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2022-02-24 01:12:40,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 325. [2022-02-24 01:12:40,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 325 states, 320 states have (on average 1.475) internal successors, (472), 320 states have internal predecessors, (472), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:12:40,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 476 transitions. [2022-02-24 01:12:40,460 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 476 transitions. Word has length 45 [2022-02-24 01:12:40,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:12:40,461 INFO L470 AbstractCegarLoop]: Abstraction has 325 states and 476 transitions. [2022-02-24 01:12:40,461 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:12:40,461 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 476 transitions. [2022-02-24 01:12:40,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-02-24 01:12:40,463 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:12:40,463 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:12:40,463 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-24 01:12:40,463 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:12:40,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:12:40,464 INFO L85 PathProgramCache]: Analyzing trace with hash -2112862728, now seen corresponding path program 1 times [2022-02-24 01:12:40,464 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:12:40,464 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1660407941] [2022-02-24 01:12:40,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:12:40,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:12:40,477 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:12:40,478 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-02-24 01:12:40,478 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:12:40,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:12:40,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:12:40,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:12:40,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 01:12:40,615 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:12:40,615 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1660407941] [2022-02-24 01:12:40,616 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1660407941] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:12:40,616 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:12:40,616 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 01:12:40,616 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43087251] [2022-02-24 01:12:40,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:12:40,616 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 01:12:40,616 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:12:40,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 01:12:40,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 01:12:40,617 INFO L87 Difference]: Start difference. First operand 325 states and 476 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:12:42,628 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:12:43,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:12:43,251 INFO L93 Difference]: Finished difference Result 825 states and 1216 transitions. [2022-02-24 01:12:43,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 01:12:43,252 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 63 [2022-02-24 01:12:43,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:12:43,254 INFO L225 Difference]: With dead ends: 825 [2022-02-24 01:12:43,254 INFO L226 Difference]: Without dead ends: 513 [2022-02-24 01:12:43,255 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 01:12:43,256 INFO L933 BasicCegarLoop]: 245 mSDtfsCounter, 98 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 552 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 582 SdHoareTripleChecker+Invalid, 563 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 552 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-02-24 01:12:43,257 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [98 Valid, 582 Invalid, 563 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 552 Invalid, 1 Unknown, 0 Unchecked, 2.6s Time] [2022-02-24 01:12:43,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 513 states. [2022-02-24 01:12:43,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 513 to 375. [2022-02-24 01:12:43,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 375 states, 370 states have (on average 1.508108108108108) internal successors, (558), 370 states have internal predecessors, (558), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:12:43,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 562 transitions. [2022-02-24 01:12:43,282 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 562 transitions. Word has length 63 [2022-02-24 01:12:43,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:12:43,282 INFO L470 AbstractCegarLoop]: Abstraction has 375 states and 562 transitions. [2022-02-24 01:12:43,282 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:12:43,283 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 562 transitions. [2022-02-24 01:12:43,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-02-24 01:12:43,285 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:12:43,285 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:12:43,285 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-02-24 01:12:43,285 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:12:43,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:12:43,285 INFO L85 PathProgramCache]: Analyzing trace with hash 2048091062, now seen corresponding path program 1 times [2022-02-24 01:12:43,286 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:12:43,286 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [780948512] [2022-02-24 01:12:43,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:12:43,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:12:43,299 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:12:43,299 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-02-24 01:12:43,299 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:12:43,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:12:43,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:12:43,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:12:43,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 01:12:43,445 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:12:43,445 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [780948512] [2022-02-24 01:12:43,445 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [780948512] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:12:43,446 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:12:43,446 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 01:12:43,446 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768648069] [2022-02-24 01:12:43,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:12:43,446 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 01:12:43,446 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:12:43,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 01:12:43,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 01:12:43,447 INFO L87 Difference]: Start difference. First operand 375 states and 562 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:12:45,458 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:12:45,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:12:45,948 INFO L93 Difference]: Finished difference Result 1012 states and 1518 transitions. [2022-02-24 01:12:45,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 01:12:45,949 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 63 [2022-02-24 01:12:45,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:12:45,952 INFO L225 Difference]: With dead ends: 1012 [2022-02-24 01:12:45,952 INFO L226 Difference]: Without dead ends: 650 [2022-02-24 01:12:45,953 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 01:12:45,958 INFO L933 BasicCegarLoop]: 99 mSDtfsCounter, 108 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 43 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 285 SdHoareTripleChecker+Invalid, 429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-24 01:12:45,959 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 285 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 385 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-24 01:12:45,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 650 states. [2022-02-24 01:12:45,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 650 to 397. [2022-02-24 01:12:45,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 397 states, 392 states have (on average 1.5255102040816326) internal successors, (598), 392 states have internal predecessors, (598), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:12:45,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 602 transitions. [2022-02-24 01:12:45,991 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 602 transitions. Word has length 63 [2022-02-24 01:12:45,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:12:45,991 INFO L470 AbstractCegarLoop]: Abstraction has 397 states and 602 transitions. [2022-02-24 01:12:45,991 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:12:45,991 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 602 transitions. [2022-02-24 01:12:45,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-02-24 01:12:45,993 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:12:45,993 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:12:45,994 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-02-24 01:12:45,994 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:12:45,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:12:45,994 INFO L85 PathProgramCache]: Analyzing trace with hash -1078652993, now seen corresponding path program 1 times [2022-02-24 01:12:45,994 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:12:45,994 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1012133686] [2022-02-24 01:12:45,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:12:46,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:12:46,014 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:12:46,014 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-02-24 01:12:46,014 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:12:46,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:12:46,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:12:46,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:12:46,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 01:12:46,161 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:12:46,161 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1012133686] [2022-02-24 01:12:46,161 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1012133686] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:12:46,161 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:12:46,161 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 01:12:46,161 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318871127] [2022-02-24 01:12:46,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:12:46,162 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 01:12:46,162 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:12:46,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 01:12:46,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 01:12:46,162 INFO L87 Difference]: Start difference. First operand 397 states and 602 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:12:48,171 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:12:48,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:12:48,628 INFO L93 Difference]: Finished difference Result 1056 states and 1598 transitions. [2022-02-24 01:12:48,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 01:12:48,628 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 64 [2022-02-24 01:12:48,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:12:48,632 INFO L225 Difference]: With dead ends: 1056 [2022-02-24 01:12:48,632 INFO L226 Difference]: Without dead ends: 672 [2022-02-24 01:12:48,632 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 01:12:48,634 INFO L933 BasicCegarLoop]: 99 mSDtfsCounter, 108 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 384 mSolverCounterSat, 45 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 284 SdHoareTripleChecker+Invalid, 430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 384 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-24 01:12:48,634 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 284 Invalid, 430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 384 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-24 01:12:48,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 672 states. [2022-02-24 01:12:48,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 672 to 472. [2022-02-24 01:12:48,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 472 states, 467 states have (on average 1.563169164882227) internal successors, (730), 467 states have internal predecessors, (730), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:12:48,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 472 states to 472 states and 734 transitions. [2022-02-24 01:12:48,663 INFO L78 Accepts]: Start accepts. Automaton has 472 states and 734 transitions. Word has length 64 [2022-02-24 01:12:48,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:12:48,664 INFO L470 AbstractCegarLoop]: Abstraction has 472 states and 734 transitions. [2022-02-24 01:12:48,664 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:12:48,664 INFO L276 IsEmpty]: Start isEmpty. Operand 472 states and 734 transitions. [2022-02-24 01:12:48,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-02-24 01:12:48,669 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:12:48,670 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:12:48,670 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-02-24 01:12:48,670 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:12:48,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:12:48,671 INFO L85 PathProgramCache]: Analyzing trace with hash 917238579, now seen corresponding path program 1 times [2022-02-24 01:12:48,671 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:12:48,671 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1948612573] [2022-02-24 01:12:48,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:12:48,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:12:48,688 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:12:48,688 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-02-24 01:12:48,688 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:12:48,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:12:48,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:12:48,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:12:48,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 01:12:48,830 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:12:48,830 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1948612573] [2022-02-24 01:12:48,831 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1948612573] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:12:48,832 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:12:48,832 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 01:12:48,832 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676798313] [2022-02-24 01:12:48,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:12:48,833 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 01:12:48,833 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:12:48,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 01:12:48,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 01:12:48,834 INFO L87 Difference]: Start difference. First operand 472 states and 734 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:12:50,842 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:12:51,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:12:51,353 INFO L93 Difference]: Finished difference Result 1113 states and 1721 transitions. [2022-02-24 01:12:51,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 01:12:51,354 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 65 [2022-02-24 01:12:51,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:12:51,357 INFO L225 Difference]: With dead ends: 1113 [2022-02-24 01:12:51,357 INFO L226 Difference]: Without dead ends: 654 [2022-02-24 01:12:51,358 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 01:12:51,359 INFO L933 BasicCegarLoop]: 241 mSDtfsCounter, 91 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 544 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 574 SdHoareTripleChecker+Invalid, 555 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 544 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-02-24 01:12:51,359 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [91 Valid, 574 Invalid, 555 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 544 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-02-24 01:12:51,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 654 states. [2022-02-24 01:12:51,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 654 to 526. [2022-02-24 01:12:51,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 526 states, 521 states have (on average 1.5738963531669865) internal successors, (820), 521 states have internal predecessors, (820), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:12:51,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 526 states and 824 transitions. [2022-02-24 01:12:51,387 INFO L78 Accepts]: Start accepts. Automaton has 526 states and 824 transitions. Word has length 65 [2022-02-24 01:12:51,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:12:51,388 INFO L470 AbstractCegarLoop]: Abstraction has 526 states and 824 transitions. [2022-02-24 01:12:51,388 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:12:51,388 INFO L276 IsEmpty]: Start isEmpty. Operand 526 states and 824 transitions. [2022-02-24 01:12:51,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-02-24 01:12:51,390 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:12:51,390 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:12:51,390 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-02-24 01:12:51,390 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:12:51,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:12:51,390 INFO L85 PathProgramCache]: Analyzing trace with hash 979278193, now seen corresponding path program 1 times [2022-02-24 01:12:51,390 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:12:51,390 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [129537051] [2022-02-24 01:12:51,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:12:51,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:12:51,403 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:12:51,403 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-02-24 01:12:51,403 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:12:51,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:12:51,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:12:51,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:12:51,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 01:12:51,524 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:12:51,524 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [129537051] [2022-02-24 01:12:51,524 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [129537051] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:12:51,524 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:12:51,524 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 01:12:51,524 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750928658] [2022-02-24 01:12:51,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:12:51,525 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 01:12:51,525 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:12:51,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 01:12:51,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 01:12:51,526 INFO L87 Difference]: Start difference. First operand 526 states and 824 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:12:53,534 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:12:53,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:12:53,951 INFO L93 Difference]: Finished difference Result 1314 states and 2036 transitions. [2022-02-24 01:12:53,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 01:12:53,952 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 65 [2022-02-24 01:12:53,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:12:53,955 INFO L225 Difference]: With dead ends: 1314 [2022-02-24 01:12:53,955 INFO L226 Difference]: Without dead ends: 801 [2022-02-24 01:12:53,956 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 [2022-02-24 01:12:53,957 INFO L933 BasicCegarLoop]: 99 mSDtfsCounter, 106 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 43 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 284 SdHoareTripleChecker+Invalid, 429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-24 01:12:53,957 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [106 Valid, 284 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 385 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-24 01:12:53,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 801 states. [2022-02-24 01:12:53,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 801 to 550. [2022-02-24 01:12:53,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 550 states, 545 states have (on average 1.581651376146789) internal successors, (862), 545 states have internal predecessors, (862), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:12:53,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550 states to 550 states and 866 transitions. [2022-02-24 01:12:53,982 INFO L78 Accepts]: Start accepts. Automaton has 550 states and 866 transitions. Word has length 65 [2022-02-24 01:12:53,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:12:53,982 INFO L470 AbstractCegarLoop]: Abstraction has 550 states and 866 transitions. [2022-02-24 01:12:53,982 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:12:53,982 INFO L276 IsEmpty]: Start isEmpty. Operand 550 states and 866 transitions. [2022-02-24 01:12:53,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-02-24 01:12:53,983 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:12:53,983 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:12:53,983 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-02-24 01:12:53,983 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:12:53,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:12:53,984 INFO L85 PathProgramCache]: Analyzing trace with hash -1634852198, now seen corresponding path program 1 times [2022-02-24 01:12:53,984 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:12:53,984 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [916925630] [2022-02-24 01:12:53,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:12:53,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:12:53,997 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:12:53,997 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-02-24 01:12:53,997 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:12:54,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:12:54,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:12:54,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:12:54,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 01:12:54,103 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:12:54,103 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [916925630] [2022-02-24 01:12:54,103 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [916925630] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:12:54,103 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:12:54,105 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 01:12:54,105 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995999819] [2022-02-24 01:12:54,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:12:54,106 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 01:12:54,106 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:12:54,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 01:12:54,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 01:12:54,106 INFO L87 Difference]: Start difference. First operand 550 states and 866 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:12:56,115 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:12:56,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:12:56,611 INFO L93 Difference]: Finished difference Result 1259 states and 1971 transitions. [2022-02-24 01:12:56,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 01:12:56,611 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 66 [2022-02-24 01:12:56,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:12:56,614 INFO L225 Difference]: With dead ends: 1259 [2022-02-24 01:12:56,614 INFO L226 Difference]: Without dead ends: 722 [2022-02-24 01:12:56,615 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 01:12:56,615 INFO L933 BasicCegarLoop]: 236 mSDtfsCounter, 84 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 528 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 564 SdHoareTripleChecker+Invalid, 539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 528 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-02-24 01:12:56,616 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [84 Valid, 564 Invalid, 539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 528 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-02-24 01:12:56,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 722 states. [2022-02-24 01:12:56,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 722 to 606. [2022-02-24 01:12:56,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 606 states, 601 states have (on average 1.5873544093178036) internal successors, (954), 601 states have internal predecessors, (954), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:12:56,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 606 states to 606 states and 958 transitions. [2022-02-24 01:12:56,658 INFO L78 Accepts]: Start accepts. Automaton has 606 states and 958 transitions. Word has length 66 [2022-02-24 01:12:56,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:12:56,658 INFO L470 AbstractCegarLoop]: Abstraction has 606 states and 958 transitions. [2022-02-24 01:12:56,659 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:12:56,659 INFO L276 IsEmpty]: Start isEmpty. Operand 606 states and 958 transitions. [2022-02-24 01:12:56,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-02-24 01:12:56,660 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:12:56,660 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:12:56,660 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-02-24 01:12:56,660 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:12:56,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:12:56,660 INFO L85 PathProgramCache]: Analyzing trace with hash 288375836, now seen corresponding path program 1 times [2022-02-24 01:12:56,660 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:12:56,660 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1964126211] [2022-02-24 01:12:56,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:12:56,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:12:56,675 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:12:56,675 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-02-24 01:12:56,675 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:12:56,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:12:56,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:12:56,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:12:56,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 01:12:56,770 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:12:56,770 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1964126211] [2022-02-24 01:12:56,770 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1964126211] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:12:56,770 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:12:56,770 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 01:12:56,770 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869647525] [2022-02-24 01:12:56,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:12:56,771 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 01:12:56,771 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:12:56,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 01:12:56,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 01:12:56,771 INFO L87 Difference]: Start difference. First operand 606 states and 958 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:12:58,779 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:12:59,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:12:59,232 INFO L93 Difference]: Finished difference Result 1399 states and 2175 transitions. [2022-02-24 01:12:59,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 01:12:59,232 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 66 [2022-02-24 01:12:59,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:12:59,236 INFO L225 Difference]: With dead ends: 1399 [2022-02-24 01:12:59,236 INFO L226 Difference]: Without dead ends: 806 [2022-02-24 01:12:59,237 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 01:12:59,241 INFO L933 BasicCegarLoop]: 106 mSDtfsCounter, 105 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 391 mSolverCounterSat, 43 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 298 SdHoareTripleChecker+Invalid, 435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 391 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-24 01:12:59,241 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [105 Valid, 298 Invalid, 435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 391 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-24 01:12:59,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 806 states. [2022-02-24 01:12:59,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 806 to 556. [2022-02-24 01:12:59,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 556 states, 551 states have (on average 1.5807622504537204) internal successors, (871), 551 states have internal predecessors, (871), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:12:59,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 875 transitions. [2022-02-24 01:12:59,277 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 875 transitions. Word has length 66 [2022-02-24 01:12:59,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:12:59,277 INFO L470 AbstractCegarLoop]: Abstraction has 556 states and 875 transitions. [2022-02-24 01:12:59,277 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:12:59,277 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 875 transitions. [2022-02-24 01:12:59,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-02-24 01:12:59,283 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:12:59,283 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:12:59,283 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-02-24 01:12:59,284 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:12:59,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:12:59,284 INFO L85 PathProgramCache]: Analyzing trace with hash 1163380997, now seen corresponding path program 1 times [2022-02-24 01:12:59,284 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:12:59,284 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [284174971] [2022-02-24 01:12:59,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:12:59,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:12:59,309 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:12:59,309 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-02-24 01:12:59,309 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:12:59,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:12:59,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:12:59,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:12:59,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 01:12:59,437 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:12:59,437 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [284174971] [2022-02-24 01:12:59,437 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [284174971] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:12:59,437 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:12:59,437 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 01:12:59,437 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609449216] [2022-02-24 01:12:59,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:12:59,437 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 01:12:59,437 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:12:59,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 01:12:59,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 01:12:59,438 INFO L87 Difference]: Start difference. First operand 556 states and 875 transitions. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:13:01,447 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:13:02,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:13:02,026 INFO L93 Difference]: Finished difference Result 1271 states and 1987 transitions. [2022-02-24 01:13:02,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 01:13:02,026 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 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 84 [2022-02-24 01:13:02,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:13:02,029 INFO L225 Difference]: With dead ends: 1271 [2022-02-24 01:13:02,029 INFO L226 Difference]: Without dead ends: 728 [2022-02-24 01:13:02,030 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 01:13:02,030 INFO L933 BasicCegarLoop]: 236 mSDtfsCounter, 88 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 528 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 564 SdHoareTripleChecker+Invalid, 539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 528 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-02-24 01:13:02,030 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [88 Valid, 564 Invalid, 539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 528 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-02-24 01:13:02,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 728 states. [2022-02-24 01:13:02,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 728 to 602. [2022-02-24 01:13:02,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 602 states, 597 states have (on average 1.5896147403685092) internal successors, (949), 597 states have internal predecessors, (949), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:13:02,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 602 states to 602 states and 953 transitions. [2022-02-24 01:13:02,057 INFO L78 Accepts]: Start accepts. Automaton has 602 states and 953 transitions. Word has length 84 [2022-02-24 01:13:02,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:13:02,058 INFO L470 AbstractCegarLoop]: Abstraction has 602 states and 953 transitions. [2022-02-24 01:13:02,058 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:13:02,058 INFO L276 IsEmpty]: Start isEmpty. Operand 602 states and 953 transitions. [2022-02-24 01:13:02,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-02-24 01:13:02,059 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:13:02,059 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:13:02,060 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-02-24 01:13:02,060 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:13:02,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:13:02,060 INFO L85 PathProgramCache]: Analyzing trace with hash 2056867335, now seen corresponding path program 1 times [2022-02-24 01:13:02,060 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:13:02,060 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1571813233] [2022-02-24 01:13:02,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:13:02,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:13:02,078 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:13:02,078 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-02-24 01:13:02,078 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:13:02,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:13:02,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:13:02,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:13:02,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 01:13:02,193 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:13:02,193 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1571813233] [2022-02-24 01:13:02,193 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1571813233] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:13:02,193 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:13:02,193 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 01:13:02,193 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910622945] [2022-02-24 01:13:02,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:13:02,193 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 01:13:02,193 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:13:02,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 01:13:02,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 01:13:02,194 INFO L87 Difference]: Start difference. First operand 602 states and 953 transitions. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:13:04,211 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:13:04,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:13:04,624 INFO L93 Difference]: Finished difference Result 1275 states and 2014 transitions. [2022-02-24 01:13:04,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 01:13:04,625 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 84 [2022-02-24 01:13:04,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:13:04,627 INFO L225 Difference]: With dead ends: 1275 [2022-02-24 01:13:04,627 INFO L226 Difference]: Without dead ends: 686 [2022-02-24 01:13:04,628 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 01:13:04,628 INFO L933 BasicCegarLoop]: 209 mSDtfsCounter, 38 mSDsluCounter, 301 mSDsCounter, 0 mSdLazyCounter, 386 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 510 SdHoareTripleChecker+Invalid, 395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 386 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-24 01:13:04,629 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 510 Invalid, 395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 386 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-24 01:13:04,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 686 states. [2022-02-24 01:13:04,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 686 to 642. [2022-02-24 01:13:04,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 642 states, 637 states have (on average 1.596546310832025) internal successors, (1017), 637 states have internal predecessors, (1017), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:13:04,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 642 states to 642 states and 1021 transitions. [2022-02-24 01:13:04,669 INFO L78 Accepts]: Start accepts. Automaton has 642 states and 1021 transitions. Word has length 84 [2022-02-24 01:13:04,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:13:04,669 INFO L470 AbstractCegarLoop]: Abstraction has 642 states and 1021 transitions. [2022-02-24 01:13:04,669 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:13:04,669 INFO L276 IsEmpty]: Start isEmpty. Operand 642 states and 1021 transitions. [2022-02-24 01:13:04,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-02-24 01:13:04,670 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:13:04,670 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:13:04,670 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-02-24 01:13:04,671 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:13:04,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:13:04,671 INFO L85 PathProgramCache]: Analyzing trace with hash -1451323138, now seen corresponding path program 1 times [2022-02-24 01:13:04,671 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:13:04,671 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [97605644] [2022-02-24 01:13:04,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:13:04,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:13:04,689 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:13:04,689 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-02-24 01:13:04,690 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:13:04,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:13:04,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:13:04,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:13:04,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 01:13:04,790 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:13:04,790 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [97605644] [2022-02-24 01:13:04,790 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [97605644] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:13:04,790 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:13:04,790 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 01:13:04,790 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682321617] [2022-02-24 01:13:04,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:13:04,790 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 01:13:04,790 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:13:04,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 01:13:04,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 01:13:04,791 INFO L87 Difference]: Start difference. First operand 642 states and 1021 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:13:06,799 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:13:07,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:13:07,291 INFO L93 Difference]: Finished difference Result 1391 states and 2192 transitions. [2022-02-24 01:13:07,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 01:13:07,292 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 85 [2022-02-24 01:13:07,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:13:07,294 INFO L225 Difference]: With dead ends: 1391 [2022-02-24 01:13:07,294 INFO L226 Difference]: Without dead ends: 762 [2022-02-24 01:13:07,295 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 01:13:07,296 INFO L933 BasicCegarLoop]: 232 mSDtfsCounter, 83 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 520 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 556 SdHoareTripleChecker+Invalid, 531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 520 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-24 01:13:07,296 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [83 Valid, 556 Invalid, 531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 520 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-24 01:13:07,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 762 states. [2022-02-24 01:13:07,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 762 to 644. [2022-02-24 01:13:07,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 644 states, 639 states have (on average 1.594679186228482) internal successors, (1019), 639 states have internal predecessors, (1019), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:13:07,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 644 states to 644 states and 1023 transitions. [2022-02-24 01:13:07,325 INFO L78 Accepts]: Start accepts. Automaton has 644 states and 1023 transitions. Word has length 85 [2022-02-24 01:13:07,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:13:07,326 INFO L470 AbstractCegarLoop]: Abstraction has 644 states and 1023 transitions. [2022-02-24 01:13:07,326 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:13:07,326 INFO L276 IsEmpty]: Start isEmpty. Operand 644 states and 1023 transitions. [2022-02-24 01:13:07,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-02-24 01:13:07,327 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:13:07,327 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:13:07,327 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-02-24 01:13:07,327 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:13:07,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:13:07,328 INFO L85 PathProgramCache]: Analyzing trace with hash 1229992776, now seen corresponding path program 1 times [2022-02-24 01:13:07,328 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:13:07,328 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1320943714] [2022-02-24 01:13:07,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:13:07,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:13:07,365 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:13:07,365 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-02-24 01:13:07,365 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:13:07,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:13:07,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:13:07,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:13:07,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 01:13:07,455 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:13:07,455 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1320943714] [2022-02-24 01:13:07,455 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1320943714] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:13:07,455 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:13:07,456 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 01:13:07,456 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957186683] [2022-02-24 01:13:07,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:13:07,456 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 01:13:07,456 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:13:07,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 01:13:07,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 01:13:07,457 INFO L87 Difference]: Start difference. First operand 644 states and 1023 transitions. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:13:09,465 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:13:09,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:13:09,949 INFO L93 Difference]: Finished difference Result 1391 states and 2190 transitions. [2022-02-24 01:13:09,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 01:13:09,950 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 1 states have call successors, (3), 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 [2022-02-24 01:13:09,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:13:09,952 INFO L225 Difference]: With dead ends: 1391 [2022-02-24 01:13:09,952 INFO L226 Difference]: Without dead ends: 760 [2022-02-24 01:13:09,953 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 01:13:09,954 INFO L933 BasicCegarLoop]: 231 mSDtfsCounter, 94 mSDsluCounter, 323 mSDsCounter, 0 mSdLazyCounter, 515 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 554 SdHoareTripleChecker+Invalid, 526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 515 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-24 01:13:09,954 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [94 Valid, 554 Invalid, 526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 515 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-24 01:13:09,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 760 states. [2022-02-24 01:13:09,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 760 to 644. [2022-02-24 01:13:09,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 644 states, 639 states have (on average 1.591549295774648) internal successors, (1017), 639 states have internal predecessors, (1017), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:13:09,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 644 states to 644 states and 1021 transitions. [2022-02-24 01:13:09,983 INFO L78 Accepts]: Start accepts. Automaton has 644 states and 1021 transitions. Word has length 99 [2022-02-24 01:13:09,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:13:09,983 INFO L470 AbstractCegarLoop]: Abstraction has 644 states and 1021 transitions. [2022-02-24 01:13:09,983 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:13:09,984 INFO L276 IsEmpty]: Start isEmpty. Operand 644 states and 1021 transitions. [2022-02-24 01:13:09,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-02-24 01:13:09,985 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:13:09,985 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:13:09,985 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-02-24 01:13:09,985 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:13:09,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:13:09,985 INFO L85 PathProgramCache]: Analyzing trace with hash 311489703, now seen corresponding path program 1 times [2022-02-24 01:13:09,985 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:13:09,985 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1571289245] [2022-02-24 01:13:09,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:13:09,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:13:12,358 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:13:12,359 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-02-24 01:13:12,359 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:13:12,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:13:12,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:13:12,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:13:12,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 01:13:12,453 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:13:12,453 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1571289245] [2022-02-24 01:13:12,453 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1571289245] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:13:12,453 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:13:12,454 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 01:13:12,454 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509898306] [2022-02-24 01:13:12,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:13:12,454 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 01:13:12,454 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:13:12,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 01:13:12,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 01:13:12,454 INFO L87 Difference]: Start difference. First operand 644 states and 1021 transitions. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:13:14,466 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:13:14,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:13:14,897 INFO L93 Difference]: Finished difference Result 1328 states and 2070 transitions. [2022-02-24 01:13:14,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 01:13:14,898 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 1 states have call successors, (3), 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 [2022-02-24 01:13:14,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:13:14,901 INFO L225 Difference]: With dead ends: 1328 [2022-02-24 01:13:14,901 INFO L226 Difference]: Without dead ends: 919 [2022-02-24 01:13:14,902 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 01:13:14,902 INFO L933 BasicCegarLoop]: 120 mSDtfsCounter, 115 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 406 mSolverCounterSat, 41 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 326 SdHoareTripleChecker+Invalid, 448 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 406 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-24 01:13:14,902 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [115 Valid, 326 Invalid, 448 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 406 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-24 01:13:14,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 919 states. [2022-02-24 01:13:14,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 919 to 692. [2022-02-24 01:13:14,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 692 states, 687 states have (on average 1.579330422125182) internal successors, (1085), 687 states have internal predecessors, (1085), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:13:14,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 692 states to 692 states and 1089 transitions. [2022-02-24 01:13:14,970 INFO L78 Accepts]: Start accepts. Automaton has 692 states and 1089 transitions. Word has length 99 [2022-02-24 01:13:14,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:13:14,970 INFO L470 AbstractCegarLoop]: Abstraction has 692 states and 1089 transitions. [2022-02-24 01:13:14,970 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:13:14,970 INFO L276 IsEmpty]: Start isEmpty. Operand 692 states and 1089 transitions. [2022-02-24 01:13:14,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-02-24 01:13:14,971 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:13:14,971 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:13:14,971 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-02-24 01:13:14,972 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:13:14,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:13:14,972 INFO L85 PathProgramCache]: Analyzing trace with hash -2137730133, now seen corresponding path program 1 times [2022-02-24 01:13:14,972 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:13:14,972 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2040835842] [2022-02-24 01:13:14,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:13:14,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:13:14,997 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:13:14,997 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-02-24 01:13:14,997 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:13:15,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:13:15,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:13:15,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:13:15,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 01:13:15,126 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:13:15,126 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2040835842] [2022-02-24 01:13:15,126 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [2040835842] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:13:15,126 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:13:15,126 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 01:13:15,126 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355866053] [2022-02-24 01:13:15,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:13:15,126 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 01:13:15,127 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:13:15,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 01:13:15,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 01:13:15,127 INFO L87 Difference]: Start difference. First operand 692 states and 1089 transitions. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:13:17,135 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:13:17,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:13:17,596 INFO L93 Difference]: Finished difference Result 1565 states and 2425 transitions. [2022-02-24 01:13:17,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 01:13:17,597 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 100 [2022-02-24 01:13:17,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:13:17,601 INFO L225 Difference]: With dead ends: 1565 [2022-02-24 01:13:17,601 INFO L226 Difference]: Without dead ends: 886 [2022-02-24 01:13:17,602 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 01:13:17,603 INFO L933 BasicCegarLoop]: 106 mSDtfsCounter, 119 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 391 mSolverCounterSat, 43 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 298 SdHoareTripleChecker+Invalid, 435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 391 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-24 01:13:17,605 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 298 Invalid, 435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 391 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-24 01:13:17,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 886 states. [2022-02-24 01:13:17,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 886 to 692. [2022-02-24 01:13:17,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 692 states, 687 states have (on average 1.5560407569141192) internal successors, (1069), 687 states have internal predecessors, (1069), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:13:17,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 692 states to 692 states and 1073 transitions. [2022-02-24 01:13:17,674 INFO L78 Accepts]: Start accepts. Automaton has 692 states and 1073 transitions. Word has length 100 [2022-02-24 01:13:17,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:13:17,674 INFO L470 AbstractCegarLoop]: Abstraction has 692 states and 1073 transitions. [2022-02-24 01:13:17,675 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:13:17,675 INFO L276 IsEmpty]: Start isEmpty. Operand 692 states and 1073 transitions. [2022-02-24 01:13:17,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-02-24 01:13:17,676 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:13:17,677 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:13:17,677 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-02-24 01:13:17,677 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:13:17,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:13:17,679 INFO L85 PathProgramCache]: Analyzing trace with hash 428311239, now seen corresponding path program 1 times [2022-02-24 01:13:17,679 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:13:17,679 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1887124662] [2022-02-24 01:13:17,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:13:17,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:13:17,705 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:13:17,706 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-02-24 01:13:17,706 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:13:17,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:13:17,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:13:17,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:13:17,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 01:13:17,845 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:13:17,846 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1887124662] [2022-02-24 01:13:17,846 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1887124662] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:13:17,846 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:13:17,846 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 01:13:17,846 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728230034] [2022-02-24 01:13:17,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:13:17,846 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 01:13:17,846 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:13:17,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 01:13:17,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 01:13:17,847 INFO L87 Difference]: Start difference. First operand 692 states and 1073 transitions. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:13:19,860 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:13:20,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:13:20,419 INFO L93 Difference]: Finished difference Result 1581 states and 2420 transitions. [2022-02-24 01:13:20,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 01:13:20,419 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 100 [2022-02-24 01:13:20,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:13:20,423 INFO L225 Difference]: With dead ends: 1581 [2022-02-24 01:13:20,423 INFO L226 Difference]: Without dead ends: 902 [2022-02-24 01:13:20,425 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 01:13:20,425 INFO L933 BasicCegarLoop]: 207 mSDtfsCounter, 111 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 486 mSolverCounterSat, 30 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 503 SdHoareTripleChecker+Invalid, 517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 486 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-02-24 01:13:20,426 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [111 Valid, 503 Invalid, 517 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 486 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-02-24 01:13:20,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 902 states. [2022-02-24 01:13:20,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 902 to 695. [2022-02-24 01:13:20,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 695 states, 690 states have (on average 1.5347826086956522) internal successors, (1059), 690 states have internal predecessors, (1059), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:13:20,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 695 states to 695 states and 1063 transitions. [2022-02-24 01:13:20,522 INFO L78 Accepts]: Start accepts. Automaton has 695 states and 1063 transitions. Word has length 100 [2022-02-24 01:13:20,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:13:20,522 INFO L470 AbstractCegarLoop]: Abstraction has 695 states and 1063 transitions. [2022-02-24 01:13:20,522 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:13:20,522 INFO L276 IsEmpty]: Start isEmpty. Operand 695 states and 1063 transitions. [2022-02-24 01:13:20,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-02-24 01:13:20,523 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:13:20,524 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:13:20,524 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-02-24 01:13:20,524 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:13:20,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:13:20,524 INFO L85 PathProgramCache]: Analyzing trace with hash -852029360, now seen corresponding path program 1 times [2022-02-24 01:13:20,524 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:13:20,524 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2131126718] [2022-02-24 01:13:20,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:13:20,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:13:20,556 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:13:20,556 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-02-24 01:13:20,556 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:13:20,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:13:20,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:13:20,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:13:20,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 01:13:20,676 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:13:20,676 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2131126718] [2022-02-24 01:13:20,676 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [2131126718] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:13:20,676 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:13:20,676 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 01:13:20,676 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267829848] [2022-02-24 01:13:20,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:13:20,677 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 01:13:20,677 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:13:20,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 01:13:20,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 01:13:20,677 INFO L87 Difference]: Start difference. First operand 695 states and 1063 transitions. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:13:22,688 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:13:23,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:13:23,213 INFO L93 Difference]: Finished difference Result 1566 states and 2367 transitions. [2022-02-24 01:13:23,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 01:13:23,214 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 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 101 [2022-02-24 01:13:23,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:13:23,218 INFO L225 Difference]: With dead ends: 1566 [2022-02-24 01:13:23,218 INFO L226 Difference]: Without dead ends: 887 [2022-02-24 01:13:23,220 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 01:13:23,220 INFO L933 BasicCegarLoop]: 117 mSDtfsCounter, 117 mSDsluCounter, 203 mSDsCounter, 0 mSdLazyCounter, 403 mSolverCounterSat, 40 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 320 SdHoareTripleChecker+Invalid, 444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 403 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-24 01:13:23,221 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [117 Valid, 320 Invalid, 444 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 403 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-24 01:13:23,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 887 states. [2022-02-24 01:13:23,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 887 to 695. [2022-02-24 01:13:23,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 695 states, 690 states have (on average 1.5115942028985507) internal successors, (1043), 690 states have internal predecessors, (1043), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:13:23,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 695 states to 695 states and 1047 transitions. [2022-02-24 01:13:23,292 INFO L78 Accepts]: Start accepts. Automaton has 695 states and 1047 transitions. Word has length 101 [2022-02-24 01:13:23,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:13:23,293 INFO L470 AbstractCegarLoop]: Abstraction has 695 states and 1047 transitions. [2022-02-24 01:13:23,293 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:13:23,293 INFO L276 IsEmpty]: Start isEmpty. Operand 695 states and 1047 transitions. [2022-02-24 01:13:23,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-02-24 01:13:23,295 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:13:23,295 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:13:23,295 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-02-24 01:13:23,295 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:13:23,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:13:23,296 INFO L85 PathProgramCache]: Analyzing trace with hash 1276111053, now seen corresponding path program 1 times [2022-02-24 01:13:23,296 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:13:23,296 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1101549195] [2022-02-24 01:13:23,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:13:23,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:13:25,730 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:13:25,730 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-02-24 01:13:25,730 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:13:25,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:13:25,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:13:25,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:13:25,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 01:13:25,830 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:13:25,830 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1101549195] [2022-02-24 01:13:25,830 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1101549195] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:13:25,830 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:13:25,830 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 01:13:25,830 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129515210] [2022-02-24 01:13:25,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:13:25,830 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 01:13:25,830 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:13:25,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 01:13:25,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 01:13:25,831 INFO L87 Difference]: Start difference. First operand 695 states and 1047 transitions. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:13:27,839 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:13:28,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:13:28,315 INFO L93 Difference]: Finished difference Result 1246 states and 1868 transitions. [2022-02-24 01:13:28,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 01:13:28,316 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 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 101 [2022-02-24 01:13:28,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:13:28,318 INFO L225 Difference]: With dead ends: 1246 [2022-02-24 01:13:28,318 INFO L226 Difference]: Without dead ends: 805 [2022-02-24 01:13:28,319 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 01:13:28,319 INFO L933 BasicCegarLoop]: 225 mSDtfsCounter, 82 mSDsluCounter, 317 mSDsCounter, 0 mSdLazyCounter, 502 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 542 SdHoareTripleChecker+Invalid, 512 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 502 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-24 01:13:28,320 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [82 Valid, 542 Invalid, 512 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 502 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-24 01:13:28,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 805 states. [2022-02-24 01:13:28,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 805 to 695. [2022-02-24 01:13:28,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 695 states, 690 states have (on average 1.508695652173913) internal successors, (1041), 690 states have internal predecessors, (1041), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:13:28,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 695 states to 695 states and 1045 transitions. [2022-02-24 01:13:28,364 INFO L78 Accepts]: Start accepts. Automaton has 695 states and 1045 transitions. Word has length 101 [2022-02-24 01:13:28,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:13:28,364 INFO L470 AbstractCegarLoop]: Abstraction has 695 states and 1045 transitions. [2022-02-24 01:13:28,364 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:13:28,364 INFO L276 IsEmpty]: Start isEmpty. Operand 695 states and 1045 transitions. [2022-02-24 01:13:28,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-02-24 01:13:28,365 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:13:28,365 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:13:28,366 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-02-24 01:13:28,366 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:13:28,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:13:28,366 INFO L85 PathProgramCache]: Analyzing trace with hash 725640173, now seen corresponding path program 1 times [2022-02-24 01:13:28,366 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:13:28,366 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [21523658] [2022-02-24 01:13:28,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:13:28,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:13:28,394 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:13:28,394 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-02-24 01:13:28,394 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:13:28,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:13:28,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:13:28,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:13:28,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 01:13:28,489 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:13:28,489 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [21523658] [2022-02-24 01:13:28,489 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [21523658] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:13:28,489 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:13:28,489 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 01:13:28,489 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602654397] [2022-02-24 01:13:28,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:13:28,489 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 01:13:28,489 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:13:28,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 01:13:28,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 01:13:28,493 INFO L87 Difference]: Start difference. First operand 695 states and 1045 transitions. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:13:30,505 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:13:31,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:13:31,067 INFO L93 Difference]: Finished difference Result 1484 states and 2223 transitions. [2022-02-24 01:13:31,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 01:13:31,068 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 101 [2022-02-24 01:13:31,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:13:31,078 INFO L225 Difference]: With dead ends: 1484 [2022-02-24 01:13:31,078 INFO L226 Difference]: Without dead ends: 805 [2022-02-24 01:13:31,080 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 01:13:31,080 INFO L933 BasicCegarLoop]: 224 mSDtfsCounter, 62 mSDsluCounter, 316 mSDsCounter, 0 mSdLazyCounter, 501 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 540 SdHoareTripleChecker+Invalid, 511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 501 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-02-24 01:13:31,080 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [62 Valid, 540 Invalid, 511 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 501 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-02-24 01:13:31,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 805 states. [2022-02-24 01:13:31,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 805 to 721. [2022-02-24 01:13:31,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 721 states, 716 states have (on average 1.5125698324022345) internal successors, (1083), 716 states have internal predecessors, (1083), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:13:31,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 721 states to 721 states and 1087 transitions. [2022-02-24 01:13:31,142 INFO L78 Accepts]: Start accepts. Automaton has 721 states and 1087 transitions. Word has length 101 [2022-02-24 01:13:31,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:13:31,142 INFO L470 AbstractCegarLoop]: Abstraction has 721 states and 1087 transitions. [2022-02-24 01:13:31,142 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:13:31,142 INFO L276 IsEmpty]: Start isEmpty. Operand 721 states and 1087 transitions. [2022-02-24 01:13:31,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-02-24 01:13:31,143 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:13:31,144 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:13:31,144 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-02-24 01:13:31,144 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:13:31,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:13:31,144 INFO L85 PathProgramCache]: Analyzing trace with hash 1316661163, now seen corresponding path program 1 times [2022-02-24 01:13:31,144 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:13:31,144 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1932684430] [2022-02-24 01:13:31,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:13:31,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:13:31,169 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:13:31,169 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-02-24 01:13:31,169 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:13:31,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:13:31,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:13:31,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:13:31,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 01:13:31,269 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:13:31,269 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1932684430] [2022-02-24 01:13:31,269 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1932684430] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:13:31,269 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:13:31,269 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 01:13:31,270 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205523329] [2022-02-24 01:13:31,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:13:31,270 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 01:13:31,270 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:13:31,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 01:13:31,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 01:13:31,271 INFO L87 Difference]: Start difference. First operand 721 states and 1087 transitions. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:13:33,280 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:13:33,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:13:33,692 INFO L93 Difference]: Finished difference Result 1618 states and 2415 transitions. [2022-02-24 01:13:33,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 01:13:33,692 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 101 [2022-02-24 01:13:33,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:13:33,695 INFO L225 Difference]: With dead ends: 1618 [2022-02-24 01:13:33,695 INFO L226 Difference]: Without dead ends: 913 [2022-02-24 01:13:33,696 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 01:13:33,696 INFO L933 BasicCegarLoop]: 106 mSDtfsCounter, 91 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 391 mSolverCounterSat, 43 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 298 SdHoareTripleChecker+Invalid, 435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 391 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-02-24 01:13:33,696 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [91 Valid, 298 Invalid, 435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 391 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-02-24 01:13:33,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 913 states. [2022-02-24 01:13:33,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 913 to 754. [2022-02-24 01:13:33,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 754 states, 749 states have (on average 1.5300400534045393) internal successors, (1146), 749 states have internal predecessors, (1146), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:13:33,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 754 states to 754 states and 1150 transitions. [2022-02-24 01:13:33,752 INFO L78 Accepts]: Start accepts. Automaton has 754 states and 1150 transitions. Word has length 101 [2022-02-24 01:13:33,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:13:33,752 INFO L470 AbstractCegarLoop]: Abstraction has 754 states and 1150 transitions. [2022-02-24 01:13:33,752 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:13:33,753 INFO L276 IsEmpty]: Start isEmpty. Operand 754 states and 1150 transitions. [2022-02-24 01:13:33,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-02-24 01:13:33,754 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:13:33,754 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:13:33,754 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-02-24 01:13:33,754 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:13:33,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:13:33,754 INFO L85 PathProgramCache]: Analyzing trace with hash -1057281585, now seen corresponding path program 1 times [2022-02-24 01:13:33,754 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:13:33,754 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [379366261] [2022-02-24 01:13:33,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:13:33,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:13:36,009 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:13:36,009 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-02-24 01:13:36,009 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:13:36,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:13:36,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:13:36,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:13:36,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 01:13:36,134 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:13:36,134 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [379366261] [2022-02-24 01:13:36,134 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [379366261] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:13:36,134 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:13:36,134 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 01:13:36,134 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152797075] [2022-02-24 01:13:36,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:13:36,135 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 01:13:36,135 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:13:36,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 01:13:36,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 01:13:36,136 INFO L87 Difference]: Start difference. First operand 754 states and 1150 transitions. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:13:38,144 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:13:38,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:13:38,630 INFO L93 Difference]: Finished difference Result 1447 states and 2183 transitions. [2022-02-24 01:13:38,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 01:13:38,630 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 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 101 [2022-02-24 01:13:38,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:13:38,633 INFO L225 Difference]: With dead ends: 1447 [2022-02-24 01:13:38,633 INFO L226 Difference]: Without dead ends: 971 [2022-02-24 01:13:38,634 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 01:13:38,634 INFO L933 BasicCegarLoop]: 122 mSDtfsCounter, 108 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 402 mSolverCounterSat, 39 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 330 SdHoareTripleChecker+Invalid, 442 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 402 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-24 01:13:38,634 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 330 Invalid, 442 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 402 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-24 01:13:38,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 971 states. [2022-02-24 01:13:38,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 971 to 757. [2022-02-24 01:13:38,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 757 states, 752 states have (on average 1.5172872340425532) internal successors, (1141), 752 states have internal predecessors, (1141), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:13:38,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 757 states to 757 states and 1145 transitions. [2022-02-24 01:13:38,693 INFO L78 Accepts]: Start accepts. Automaton has 757 states and 1145 transitions. Word has length 101 [2022-02-24 01:13:38,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:13:38,693 INFO L470 AbstractCegarLoop]: Abstraction has 757 states and 1145 transitions. [2022-02-24 01:13:38,693 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:13:38,693 INFO L276 IsEmpty]: Start isEmpty. Operand 757 states and 1145 transitions. [2022-02-24 01:13:38,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-02-24 01:13:38,694 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:13:38,694 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:13:38,694 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-02-24 01:13:38,694 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:13:38,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:13:38,695 INFO L85 PathProgramCache]: Analyzing trace with hash -1200804144, now seen corresponding path program 1 times [2022-02-24 01:13:38,695 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:13:38,695 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [526105599] [2022-02-24 01:13:38,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:13:38,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:13:53,847 WARN L232 SmtUtils]: Spent 9.84s on a formula simplification that was a NOOP. DAG size: 240 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-02-24 01:14:01,325 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:14:01,325 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-02-24 01:14:01,325 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:14:01,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:14:01,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:14:01,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:14:01,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 01:14:01,437 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:14:01,437 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [526105599] [2022-02-24 01:14:01,437 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [526105599] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:14:01,437 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:14:01,437 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-24 01:14:01,437 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366344733] [2022-02-24 01:14:01,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:14:01,438 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-24 01:14:01,438 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:14:01,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-24 01:14:01,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 01:14:01,438 INFO L87 Difference]: Start difference. First operand 757 states and 1145 transitions. Second operand has 4 states, 4 states have (on average 23.0) internal successors, (92), 3 states have internal predecessors, (92), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:14:03,446 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:14:03,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:14:03,901 INFO L93 Difference]: Finished difference Result 1499 states and 2277 transitions. [2022-02-24 01:14:03,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-24 01:14:03,901 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.0) internal successors, (92), 3 states have internal predecessors, (92), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 116 [2022-02-24 01:14:03,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:14:03,904 INFO L225 Difference]: With dead ends: 1499 [2022-02-24 01:14:03,904 INFO L226 Difference]: Without dead ends: 1023 [2022-02-24 01:14:03,905 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 01:14:03,905 INFO L933 BasicCegarLoop]: 319 mSDtfsCounter, 121 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 343 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 483 SdHoareTripleChecker+Invalid, 351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 343 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-24 01:14:03,906 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [121 Valid, 483 Invalid, 351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 343 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-24 01:14:03,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1023 states. [2022-02-24 01:14:03,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1023 to 1023. [2022-02-24 01:14:03,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1023 states, 1018 states have (on average 1.5157170923379175) internal successors, (1543), 1018 states have internal predecessors, (1543), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:14:03,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1023 states to 1023 states and 1547 transitions. [2022-02-24 01:14:03,975 INFO L78 Accepts]: Start accepts. Automaton has 1023 states and 1547 transitions. Word has length 116 [2022-02-24 01:14:03,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:14:03,976 INFO L470 AbstractCegarLoop]: Abstraction has 1023 states and 1547 transitions. [2022-02-24 01:14:03,976 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.0) internal successors, (92), 3 states have internal predecessors, (92), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:14:03,976 INFO L276 IsEmpty]: Start isEmpty. Operand 1023 states and 1547 transitions. [2022-02-24 01:14:03,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-02-24 01:14:03,977 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:14:03,977 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:14:03,977 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-02-24 01:14:03,977 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:14:03,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:14:03,978 INFO L85 PathProgramCache]: Analyzing trace with hash -816970310, now seen corresponding path program 1 times [2022-02-24 01:14:03,978 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:14:03,978 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1874140125] [2022-02-24 01:14:03,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:14:03,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:14:04,015 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:14:04,016 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-02-24 01:14:04,016 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:14:04,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:14:04,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:14:04,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:14:04,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 01:14:04,145 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:14:04,145 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1874140125] [2022-02-24 01:14:04,145 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1874140125] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:14:04,145 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:14:04,145 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-24 01:14:04,145 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954423778] [2022-02-24 01:14:04,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:14:04,145 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-24 01:14:04,145 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:14:04,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-24 01:14:04,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 01:14:04,146 INFO L87 Difference]: Start difference. First operand 1023 states and 1547 transitions. Second operand has 4 states, 4 states have (on average 19.25) internal successors, (77), 3 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:14:06,153 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:14:06,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:14:06,567 INFO L93 Difference]: Finished difference Result 2031 states and 3079 transitions. [2022-02-24 01:14:06,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-24 01:14:06,567 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 3 states have internal predecessors, (77), 1 states have call successors, (3), 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 119 [2022-02-24 01:14:06,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:14:06,570 INFO L225 Difference]: With dead ends: 2031 [2022-02-24 01:14:06,570 INFO L226 Difference]: Without dead ends: 1289 [2022-02-24 01:14:06,572 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 01:14:06,572 INFO L933 BasicCegarLoop]: 318 mSDtfsCounter, 127 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 341 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 482 SdHoareTripleChecker+Invalid, 350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 341 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-02-24 01:14:06,572 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [127 Valid, 482 Invalid, 350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 341 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-02-24 01:14:06,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1289 states. [2022-02-24 01:14:06,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1289 to 1287. [2022-02-24 01:14:06,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1287 states, 1282 states have (on average 1.5148205928237128) internal successors, (1942), 1282 states have internal predecessors, (1942), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:14:06,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1287 states to 1287 states and 1946 transitions. [2022-02-24 01:14:06,674 INFO L78 Accepts]: Start accepts. Automaton has 1287 states and 1946 transitions. Word has length 119 [2022-02-24 01:14:06,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:14:06,674 INFO L470 AbstractCegarLoop]: Abstraction has 1287 states and 1946 transitions. [2022-02-24 01:14:06,674 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 3 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:14:06,674 INFO L276 IsEmpty]: Start isEmpty. Operand 1287 states and 1946 transitions. [2022-02-24 01:14:06,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-02-24 01:14:06,677 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:14:06,677 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:14:06,677 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-02-24 01:14:06,677 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:14:06,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:14:06,677 INFO L85 PathProgramCache]: Analyzing trace with hash -676421700, now seen corresponding path program 1 times [2022-02-24 01:14:06,677 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:14:06,677 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1078457023] [2022-02-24 01:14:06,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:14:06,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:14:06,708 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:14:06,708 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-02-24 01:14:06,708 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:14:06,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:14:06,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:14:06,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:14:06,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 01:14:06,796 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:14:06,796 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1078457023] [2022-02-24 01:14:06,796 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1078457023] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:14:06,796 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:14:06,796 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-24 01:14:06,796 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862694297] [2022-02-24 01:14:06,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:14:06,797 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-24 01:14:06,797 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:14:06,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-24 01:14:06,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 01:14:06,797 INFO L87 Difference]: Start difference. First operand 1287 states and 1946 transitions. Second operand has 4 states, 4 states have (on average 22.75) internal successors, (91), 3 states have internal predecessors, (91), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:14:08,804 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:14:09,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:14:09,245 INFO L93 Difference]: Finished difference Result 2267 states and 3431 transitions. [2022-02-24 01:14:09,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-24 01:14:09,245 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 3 states have internal predecessors, (91), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 119 [2022-02-24 01:14:09,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:14:09,276 INFO L225 Difference]: With dead ends: 2267 [2022-02-24 01:14:09,276 INFO L226 Difference]: Without dead ends: 1261 [2022-02-24 01:14:09,278 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 01:14:09,278 INFO L933 BasicCegarLoop]: 317 mSDtfsCounter, 130 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 340 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 481 SdHoareTripleChecker+Invalid, 348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 340 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-02-24 01:14:09,278 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [130 Valid, 481 Invalid, 348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 340 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-02-24 01:14:09,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1261 states. [2022-02-24 01:14:09,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1261 to 1261. [2022-02-24 01:14:09,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1261 states, 1256 states have (on average 1.5095541401273886) internal successors, (1896), 1256 states have internal predecessors, (1896), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:14:09,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1261 states to 1261 states and 1900 transitions. [2022-02-24 01:14:09,372 INFO L78 Accepts]: Start accepts. Automaton has 1261 states and 1900 transitions. Word has length 119 [2022-02-24 01:14:09,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:14:09,372 INFO L470 AbstractCegarLoop]: Abstraction has 1261 states and 1900 transitions. [2022-02-24 01:14:09,372 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 3 states have internal predecessors, (91), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:14:09,372 INFO L276 IsEmpty]: Start isEmpty. Operand 1261 states and 1900 transitions. [2022-02-24 01:14:09,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-02-24 01:14:09,374 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:14:09,375 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 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, 1, 1, 1] [2022-02-24 01:14:09,375 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-02-24 01:14:09,375 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:14:09,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:14:09,375 INFO L85 PathProgramCache]: Analyzing trace with hash -1107867599, now seen corresponding path program 1 times [2022-02-24 01:14:09,375 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:14:09,375 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [118302775] [2022-02-24 01:14:09,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:14:09,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:14:09,425 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:14:09,426 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-02-24 01:14:09,426 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:14:09,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:14:09,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:14:09,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:14:09,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 01:14:09,543 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:14:09,543 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [118302775] [2022-02-24 01:14:09,544 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [118302775] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:14:09,544 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:14:09,544 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 01:14:09,544 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407684706] [2022-02-24 01:14:09,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:14:09,544 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 01:14:09,544 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:14:09,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 01:14:09,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 01:14:09,544 INFO L87 Difference]: Start difference. First operand 1261 states and 1900 transitions. Second operand has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:14:11,556 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:14:12,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:14:12,007 INFO L93 Difference]: Finished difference Result 2764 states and 4089 transitions. [2022-02-24 01:14:12,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 01:14:12,013 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 143 [2022-02-24 01:14:12,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:14:12,017 INFO L225 Difference]: With dead ends: 2764 [2022-02-24 01:14:12,017 INFO L226 Difference]: Without dead ends: 1519 [2022-02-24 01:14:12,019 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 01:14:12,019 INFO L933 BasicCegarLoop]: 105 mSDtfsCounter, 107 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 392 mSolverCounterSat, 41 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 295 SdHoareTripleChecker+Invalid, 434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 392 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-02-24 01:14:12,019 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [107 Valid, 295 Invalid, 434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 392 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-02-24 01:14:12,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1519 states. [2022-02-24 01:14:12,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1519 to 1261. [2022-02-24 01:14:12,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1261 states, 1256 states have (on average 1.4952229299363058) internal successors, (1878), 1256 states have internal predecessors, (1878), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:14:12,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1261 states to 1261 states and 1882 transitions. [2022-02-24 01:14:12,105 INFO L78 Accepts]: Start accepts. Automaton has 1261 states and 1882 transitions. Word has length 143 [2022-02-24 01:14:12,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:14:12,105 INFO L470 AbstractCegarLoop]: Abstraction has 1261 states and 1882 transitions. [2022-02-24 01:14:12,105 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:14:12,105 INFO L276 IsEmpty]: Start isEmpty. Operand 1261 states and 1882 transitions. [2022-02-24 01:14:12,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-02-24 01:14:12,107 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:14:12,107 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 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, 1, 1, 1] [2022-02-24 01:14:12,107 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-02-24 01:14:12,107 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:14:12,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:14:12,107 INFO L85 PathProgramCache]: Analyzing trace with hash -1878601165, now seen corresponding path program 1 times [2022-02-24 01:14:12,107 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:14:12,107 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [947400825] [2022-02-24 01:14:12,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:14:12,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:14:12,146 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:14:12,146 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-02-24 01:14:12,147 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:14:12,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-24 01:14:12,808 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-24 01:14:13,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-24 01:14:13,359 INFO L138 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2022-02-24 01:14:13,359 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-02-24 01:14:13,363 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-02-24 01:14:13,365 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-02-24 01:14:13,367 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] [2022-02-24 01:14:13,369 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-24 01:14:13,406 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.02 01:14:13 BoogieIcfgContainer [2022-02-24 01:14:13,406 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-24 01:14:13,406 INFO L158 Benchmark]: Toolchain (without parser) took 100745.10ms. Allocated memory was 195.0MB in the beginning and 331.4MB in the end (delta: 136.3MB). Free memory was 143.2MB in the beginning and 165.1MB in the end (delta: -22.0MB). Peak memory consumption was 185.9MB. Max. memory is 8.0GB. [2022-02-24 01:14:13,407 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 195.0MB. Free memory was 161.4MB in the beginning and 161.2MB in the end (delta: 143.3kB). There was no memory consumed. Max. memory is 8.0GB. [2022-02-24 01:14:13,407 INFO L158 Benchmark]: CACSL2BoogieTranslator took 535.91ms. Allocated memory was 195.0MB in the beginning and 275.8MB in the end (delta: 80.7MB). Free memory was 142.9MB in the beginning and 233.6MB in the end (delta: -90.7MB). Peak memory consumption was 16.7MB. Max. memory is 8.0GB. [2022-02-24 01:14:13,407 INFO L158 Benchmark]: Boogie Preprocessor took 108.43ms. Allocated memory is still 275.8MB. Free memory was 233.6MB in the beginning and 226.3MB in the end (delta: 7.3MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. [2022-02-24 01:14:13,407 INFO L158 Benchmark]: RCFGBuilder took 1260.97ms. Allocated memory is still 275.8MB. Free memory was 226.3MB in the beginning and 222.5MB in the end (delta: 3.8MB). Peak memory consumption was 65.2MB. Max. memory is 8.0GB. [2022-02-24 01:14:13,408 INFO L158 Benchmark]: TraceAbstraction took 98835.31ms. Allocated memory was 275.8MB in the beginning and 331.4MB in the end (delta: 55.6MB). Free memory was 222.0MB in the beginning and 165.1MB in the end (delta: 56.8MB). Peak memory consumption was 182.7MB. Max. memory is 8.0GB. [2022-02-24 01:14:13,412 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 195.0MB. Free memory was 161.4MB in the beginning and 161.2MB in the end (delta: 143.3kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 535.91ms. Allocated memory was 195.0MB in the beginning and 275.8MB in the end (delta: 80.7MB). Free memory was 142.9MB in the beginning and 233.6MB in the end (delta: -90.7MB). Peak memory consumption was 16.7MB. Max. memory is 8.0GB. * Boogie Preprocessor took 108.43ms. Allocated memory is still 275.8MB. Free memory was 233.6MB in the beginning and 226.3MB in the end (delta: 7.3MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. * RCFGBuilder took 1260.97ms. Allocated memory is still 275.8MB. Free memory was 226.3MB in the beginning and 222.5MB in the end (delta: 3.8MB). Peak memory consumption was 65.2MB. Max. memory is 8.0GB. * TraceAbstraction took 98835.31ms. Allocated memory was 275.8MB in the beginning and 331.4MB in the end (delta: 55.6MB). Free memory was 222.0MB in the beginning and 165.1MB in the end (delta: 56.8MB). Peak memory consumption was 182.7MB. 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: 1658]: 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 1343. Possible FailurePath: [L1042] static int init = 1; [L1043] static SSL_METHOD SSLv3_client_data ; [L1065] SSL *s ; [L1069] s = malloc (sizeof (SSL)) [L1070] s->s3 = malloc(sizeof(struct ssl3_state_st)) [L1071] EXPR s->s3 [L1071] s->s3->flags = __VERIFIER_nondet_long() [L1072] EXPR s->s3 [L1072] (s->s3)->tmp.cert_req = __VERIFIER_nondet_int() [L1073] EXPR s->s3 [L1073] (s->s3)->tmp.new_cipher = malloc(sizeof(struct ssl_cipher_st)) [L1074] EXPR s->s3 [L1074] EXPR (s->s3)->tmp.new_cipher [L1074] ((s->s3)->tmp.new_cipher)->algorithms = __VERIFIER_nondet_ulong() [L1075] EXPR s->s3 [L1075] s->s3->tmp.next_state = __VERIFIER_nondet_int() [L1076] s->bbio = (BIO *) __VERIFIER_nondet_ulong() [L1077] s->wbio = (BIO *) __VERIFIER_nondet_ulong() [L1078] s->ctx = malloc(sizeof(SSL_CTX)) [L1079] EXPR s->ctx [L1079] (s->ctx)->info_callback = (void (*)()) __VERIFIER_nondet_ulong() [L1080] s->state = 12292 [L1081] s->version = __VERIFIER_nondet_int() [L1082] s->init_buf = (BUF_MEM *)__VERIFIER_nondet_ulong() [L1083] s->info_callback = (void (*)()) __VERIFIER_nondet_ulong() [L1084] CALL ssl3_connect(s) [L1090] BUF_MEM *buf = (BUF_MEM *)__VERIFIER_nondet_ulong(); [L1091] unsigned long tmp ; [L1092] unsigned long l ; [L1093] long num1 ; [L1094] void (*cb)() ; [L1095] int ret ; [L1096] int new_state ; [L1097] int state ; [L1098] int skip ; [L1099] int *tmp___0 ; [L1100] int tmp___1 = __VERIFIER_nondet_int(); [L1101] int tmp___2 = __VERIFIER_nondet_int(); [L1102] int tmp___3 ; [L1103] int tmp___4 ; [L1104] int tmp___5 ; [L1105] int tmp___6 ; [L1106] int tmp___7 ; [L1107] int tmp___8 ; [L1108] long tmp___9 ; [L1110] int blastFlag ; [L1113] blastFlag = 0 [L1114] s->state = 12292 [L1115] s->hit = __VERIFIER_nondet_int() [L1117] tmp = __VERIFIER_nondet_int() [L1118] cb = (void (*)())((void *)0) [L1119] ret = -1 [L1120] skip = 0 [L1121] tmp___0 = (int*)malloc(sizeof(int)) [L1122] *tmp___0 = 0 [L1123] EXPR s->info_callback [L1123] COND TRUE (unsigned long )s->info_callback != (unsigned long )((void *)0) [L1124] EXPR s->info_callback [L1124] cb = s->info_callback [L1132] EXPR s->in_handshake [L1132] s->in_handshake += 1 [L1133] COND FALSE !(tmp___1 & 12288) [L1143] COND TRUE 1 [L1145] EXPR s->state [L1145] state = s->state [L1146] EXPR s->state [L1146] COND TRUE s->state == 12292 [L1249] s->new_session = 1 [L1250] s->state = 4096 [L1251] EXPR s->ctx [L1251] EXPR (s->ctx)->stats.sess_connect_renegotiate [L1251] (s->ctx)->stats.sess_connect_renegotiate += 1 [L1256] s->server = 0 [L1257] COND TRUE (unsigned long )cb != (unsigned long )((void *)0) [L1262] EXPR s->version [L1262] COND FALSE !((s->version & 65280) != 768) [L1268] s->type = 4096 [L1269] EXPR s->init_buf [L1269] COND FALSE !((unsigned long )s->init_buf == (unsigned long )((void *)0)) [L1281] tmp___4 = __VERIFIER_nondet_int() [L1282] COND FALSE !(! tmp___4) [L1288] tmp___5 = __VERIFIER_nondet_int() [L1289] COND FALSE !(! tmp___5) [L1295] s->state = 4368 [L1296] EXPR s->ctx [L1296] EXPR (s->ctx)->stats.sess_connect [L1296] (s->ctx)->stats.sess_connect += 1 [L1297] s->init_num = 0 [L1617] EXPR s->s3 [L1617] EXPR (s->s3)->tmp.reuse_message [L1617] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1646] skip = 0 [L1143] COND TRUE 1 [L1145] EXPR s->state [L1145] state = s->state [L1146] EXPR s->state [L1146] COND FALSE !(s->state == 12292) [L1149] EXPR s->state [L1149] COND FALSE !(s->state == 16384) [L1152] EXPR s->state [L1152] COND FALSE !(s->state == 4096) [L1155] EXPR s->state [L1155] COND FALSE !(s->state == 20480) [L1158] EXPR s->state [L1158] COND FALSE !(s->state == 4099) [L1161] EXPR s->state [L1161] COND TRUE s->state == 4368 [L1301] s->shutdown = 0 [L1302] ret = __VERIFIER_nondet_int() [L1303] COND TRUE blastFlag == 0 [L1304] blastFlag = 1 [L1308] COND FALSE !(ret <= 0) [L1313] s->state = 4384 [L1314] s->init_num = 0 [L1315] EXPR s->bbio [L1315] EXPR s->wbio [L1315] COND TRUE (unsigned long )s->bbio != (unsigned long )s->wbio [L1617] EXPR s->s3 [L1617] EXPR (s->s3)->tmp.reuse_message [L1617] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1646] skip = 0 [L1143] COND TRUE 1 [L1145] EXPR s->state [L1145] state = s->state [L1146] EXPR s->state [L1146] COND FALSE !(s->state == 12292) [L1149] EXPR s->state [L1149] COND FALSE !(s->state == 16384) [L1152] EXPR s->state [L1152] COND FALSE !(s->state == 4096) [L1155] EXPR s->state [L1155] COND FALSE !(s->state == 20480) [L1158] EXPR s->state [L1158] COND FALSE !(s->state == 4099) [L1161] EXPR s->state [L1161] COND FALSE !(s->state == 4368) [L1164] EXPR s->state [L1164] COND FALSE !(s->state == 4369) [L1167] EXPR s->state [L1167] COND TRUE s->state == 4384 [L1323] ret = __VERIFIER_nondet_int() [L1324] COND TRUE blastFlag == 1 [L1325] blastFlag = 2 [L1329] COND FALSE !(ret <= 0) [L1334] s->hit [L1334] COND FALSE !(s->hit) [L1337] s->state = 4400 [L1339] s->init_num = 0 [L1617] EXPR s->s3 [L1617] EXPR (s->s3)->tmp.reuse_message [L1617] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1646] skip = 0 [L1143] COND TRUE 1 [L1145] EXPR s->state [L1145] state = s->state [L1146] EXPR s->state [L1146] COND FALSE !(s->state == 12292) [L1149] EXPR s->state [L1149] COND FALSE !(s->state == 16384) [L1152] EXPR s->state [L1152] COND FALSE !(s->state == 4096) [L1155] EXPR s->state [L1155] COND FALSE !(s->state == 20480) [L1158] EXPR s->state [L1158] COND FALSE !(s->state == 4099) [L1161] EXPR s->state [L1161] COND FALSE !(s->state == 4368) [L1164] EXPR s->state [L1164] COND FALSE !(s->state == 4369) [L1167] EXPR s->state [L1167] COND FALSE !(s->state == 4384) [L1170] EXPR s->state [L1170] COND FALSE !(s->state == 4385) [L1173] EXPR s->state [L1173] COND TRUE s->state == 4400 [L1343] EXPR s->s3 [L1343] EXPR (s->s3)->tmp.new_cipher [L1343] EXPR ((s->s3)->tmp.new_cipher)->algorithms [L1343] COND FALSE !(((s->s3)->tmp.new_cipher)->algorithms & 256UL) [L1346] ret = __VERIFIER_nondet_int() [L1347] COND TRUE blastFlag == 2 [L1348] blastFlag = 3 [L1352] COND FALSE !(ret <= 0) [L1358] s->state = 4416 [L1359] s->init_num = 0 [L1617] EXPR s->s3 [L1617] EXPR (s->s3)->tmp.reuse_message [L1617] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1646] skip = 0 [L1143] COND TRUE 1 [L1145] EXPR s->state [L1145] state = s->state [L1146] EXPR s->state [L1146] COND FALSE !(s->state == 12292) [L1149] EXPR s->state [L1149] COND FALSE !(s->state == 16384) [L1152] EXPR s->state [L1152] COND FALSE !(s->state == 4096) [L1155] EXPR s->state [L1155] COND FALSE !(s->state == 20480) [L1158] EXPR s->state [L1158] COND FALSE !(s->state == 4099) [L1161] EXPR s->state [L1161] COND FALSE !(s->state == 4368) [L1164] EXPR s->state [L1164] COND FALSE !(s->state == 4369) [L1167] EXPR s->state [L1167] COND FALSE !(s->state == 4384) [L1170] EXPR s->state [L1170] COND FALSE !(s->state == 4385) [L1173] EXPR s->state [L1173] COND FALSE !(s->state == 4400) [L1176] EXPR s->state [L1176] COND FALSE !(s->state == 4401) [L1179] EXPR s->state [L1179] COND TRUE s->state == 4416 [L1363] ret = __VERIFIER_nondet_int() [L1364] COND TRUE blastFlag == 3 [L1365] blastFlag = 4 [L1369] COND FALSE !(ret <= 0) [L1374] s->state = 4432 [L1375] s->init_num = 0 [L1376] tmp___6 = __VERIFIER_nondet_int() [L1377] COND FALSE !(! tmp___6) [L1617] EXPR s->s3 [L1617] EXPR (s->s3)->tmp.reuse_message [L1617] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1646] skip = 0 [L1143] COND TRUE 1 [L1145] EXPR s->state [L1145] state = s->state [L1146] EXPR s->state [L1146] COND FALSE !(s->state == 12292) [L1149] EXPR s->state [L1149] COND FALSE !(s->state == 16384) [L1152] EXPR s->state [L1152] COND FALSE !(s->state == 4096) [L1155] EXPR s->state [L1155] COND FALSE !(s->state == 20480) [L1158] EXPR s->state [L1158] COND FALSE !(s->state == 4099) [L1161] EXPR s->state [L1161] COND FALSE !(s->state == 4368) [L1164] EXPR s->state [L1164] COND FALSE !(s->state == 4369) [L1167] EXPR s->state [L1167] COND FALSE !(s->state == 4384) [L1170] EXPR s->state [L1170] COND FALSE !(s->state == 4385) [L1173] EXPR s->state [L1173] COND FALSE !(s->state == 4400) [L1176] EXPR s->state [L1176] COND FALSE !(s->state == 4401) [L1179] EXPR s->state [L1179] COND FALSE !(s->state == 4416) [L1182] EXPR s->state [L1182] COND FALSE !(s->state == 4417) [L1185] EXPR s->state [L1185] COND TRUE s->state == 4432 [L1386] ret = __VERIFIER_nondet_int() [L1387] COND FALSE !(blastFlag == 5) [L1392] COND FALSE !(ret <= 0) [L1397] s->state = 4448 [L1398] s->init_num = 0 [L1617] EXPR s->s3 [L1617] EXPR (s->s3)->tmp.reuse_message [L1617] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1646] skip = 0 [L1143] COND TRUE 1 [L1145] EXPR s->state [L1145] state = s->state [L1146] EXPR s->state [L1146] COND FALSE !(s->state == 12292) [L1149] EXPR s->state [L1149] COND FALSE !(s->state == 16384) [L1152] EXPR s->state [L1152] COND FALSE !(s->state == 4096) [L1155] EXPR s->state [L1155] COND FALSE !(s->state == 20480) [L1158] EXPR s->state [L1158] COND FALSE !(s->state == 4099) [L1161] EXPR s->state [L1161] COND FALSE !(s->state == 4368) [L1164] EXPR s->state [L1164] COND FALSE !(s->state == 4369) [L1167] EXPR s->state [L1167] COND FALSE !(s->state == 4384) [L1170] EXPR s->state [L1170] COND FALSE !(s->state == 4385) [L1173] EXPR s->state [L1173] COND FALSE !(s->state == 4400) [L1176] EXPR s->state [L1176] COND FALSE !(s->state == 4401) [L1179] EXPR s->state [L1179] COND FALSE !(s->state == 4416) [L1182] EXPR s->state [L1182] COND FALSE !(s->state == 4417) [L1185] EXPR s->state [L1185] COND FALSE !(s->state == 4432) [L1188] EXPR s->state [L1188] COND FALSE !(s->state == 4433) [L1191] EXPR s->state [L1191] COND TRUE s->state == 4448 [L1402] ret = __VERIFIER_nondet_int() [L1403] COND TRUE blastFlag == 4 [L1658] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 10 procedures, 171 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 98.8s, OverallIterations: 26, TraceHistogramMax: 7, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 62.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 25 mSolverCounterUnknown, 2598 SdHoareTripleChecker+Valid, 60.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2598 mSDsluCounter, 10848 SdHoareTripleChecker+Invalid, 58.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6002 mSDsCounter, 573 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 10589 IncrementalHoareTripleChecker+Invalid, 11187 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 573 mSolverCounterUnsat, 4846 mSDtfsCounter, 10589 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 185 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1287occurred in iteration=23, InterpolantAutomatonStates: 120, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.3s AutomataMinimizationTime, 25 MinimizatonAttempts, 3387 StatesRemovedByMinimization, 21 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 [2022-02-24 01:14:13,443 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...