/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/acceleratedInterpolationQvasr_64.epf -i ../../../trunk/examples/svcomp/openssl/s3_clnt.blast.01.i.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-6c470ae [2022-02-15 04:37:10,217 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-15 04:37:10,220 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-15 04:37:10,265 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-15 04:37:10,265 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-15 04:37:10,267 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-15 04:37:10,269 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-15 04:37:10,271 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-15 04:37:10,273 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-15 04:37:10,276 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-15 04:37:10,277 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-15 04:37:10,278 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-15 04:37:10,278 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-15 04:37:10,288 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-15 04:37:10,289 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-15 04:37:10,290 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-15 04:37:10,290 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-15 04:37:10,291 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-15 04:37:10,291 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-15 04:37:10,293 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-15 04:37:10,294 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-15 04:37:10,297 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-15 04:37:10,298 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-15 04:37:10,298 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-15 04:37:10,303 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-02-15 04:37:10,308 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-15 04:37:10,309 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-15 04:37:10,309 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-15 04:37:10,312 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationQvasr_64.epf [2022-02-15 04:37:10,322 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-15 04:37:10,322 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-15 04:37:10,324 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-15 04:37:10,324 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-15 04:37:10,324 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-15 04:37:10,324 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-15 04:37:10,324 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-15 04:37:10,324 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-15 04:37:10,324 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-15 04:37:10,325 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-15 04:37:10,325 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-15 04:37:10,325 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-15 04:37:10,326 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-15 04:37:10,326 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-15 04:37:10,326 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-15 04:37:10,326 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-15 04:37:10,326 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-15 04:37:10,326 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2022-02-15 04:37:10,326 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-15 04:37:10,326 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=QVASR [2022-02-15 04:37:10,326 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-02-15 04:37:10,520 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-15 04:37:10,552 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-15 04:37:10,554 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-15 04:37:10,556 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-15 04:37:10,556 INFO L275 PluginConnector]: CDTParser initialized [2022-02-15 04:37:10,557 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl/s3_clnt.blast.01.i.cil-1.c [2022-02-15 04:37:10,606 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/63fee688b/766f00274ed24bf8991aa278ca84c6c2/FLAG79d188572 [2022-02-15 04:37:11,033 INFO L306 CDTParser]: Found 1 translation units. [2022-02-15 04:37:11,034 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_clnt.blast.01.i.cil-1.c [2022-02-15 04:37:11,053 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/63fee688b/766f00274ed24bf8991aa278ca84c6c2/FLAG79d188572 [2022-02-15 04:37:11,355 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/63fee688b/766f00274ed24bf8991aa278ca84c6c2 [2022-02-15 04:37:11,357 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-15 04:37:11,358 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-02-15 04:37:11,360 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-15 04:37:11,360 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-15 04:37:11,363 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-15 04:37:11,363 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 04:37:11" (1/1) ... [2022-02-15 04:37:11,364 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76378287 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 04:37:11, skipping insertion in model container [2022-02-15 04:37:11,364 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 04:37:11" (1/1) ... [2022-02-15 04:37:11,368 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-15 04:37:11,415 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-15 04:37:11,730 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_clnt.blast.01.i.cil-1.c[65523,65536] [2022-02-15 04:37:11,743 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-15 04:37:11,761 INFO L203 MainTranslator]: Completed pre-run [2022-02-15 04:37:11,838 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_clnt.blast.01.i.cil-1.c[65523,65536] [2022-02-15 04:37:11,841 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-15 04:37:11,854 INFO L208 MainTranslator]: Completed translation [2022-02-15 04:37:11,854 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 04:37:11 WrapperNode [2022-02-15 04:37:11,855 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-15 04:37:11,855 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-15 04:37:11,856 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-15 04:37:11,856 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-15 04:37:11,880 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 04:37:11" (1/1) ... [2022-02-15 04:37:11,880 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 04:37:11" (1/1) ... [2022-02-15 04:37:11,902 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 04:37:11" (1/1) ... [2022-02-15 04:37:11,902 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 04:37:11" (1/1) ... [2022-02-15 04:37:11,967 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 04:37:11" (1/1) ... [2022-02-15 04:37:11,982 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 04:37:11" (1/1) ... [2022-02-15 04:37:11,985 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 04:37:11" (1/1) ... [2022-02-15 04:37:11,990 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-15 04:37:11,991 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-15 04:37:11,991 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-15 04:37:11,991 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-15 04:37:12,001 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 04:37:11" (1/1) ... [2022-02-15 04:37:12,006 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-15 04:37:12,015 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-15 04:37:12,026 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-02-15 04:37:12,033 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-02-15 04:37:12,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-02-15 04:37:12,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-15 04:37:12,063 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-02-15 04:37:12,064 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_client_method [2022-02-15 04:37:12,064 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_client_method [2022-02-15 04:37:12,064 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-02-15 04:37:12,064 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_connect [2022-02-15 04:37:12,064 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-02-15 04:37:12,064 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-02-15 04:37:12,065 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-02-15 04:37:12,065 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-02-15 04:37:12,065 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-02-15 04:37:12,065 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-02-15 04:37:12,066 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-15 04:37:12,066 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-02-15 04:37:12,066 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-02-15 04:37:12,066 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-02-15 04:37:12,067 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-02-15 04:37:12,068 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-02-15 04:37:12,068 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-02-15 04:37:12,068 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_client_method [2022-02-15 04:37:12,069 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-02-15 04:37:12,069 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_connect [2022-02-15 04:37:12,069 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_client_method [2022-02-15 04:37:12,069 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-02-15 04:37:12,069 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-02-15 04:37:12,069 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-02-15 04:37:12,069 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-02-15 04:37:12,069 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-15 04:37:12,069 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-02-15 04:37:12,069 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-15 04:37:12,069 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-02-15 04:37:12,069 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-02-15 04:37:12,070 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-02-15 04:37:12,070 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-15 04:37:12,070 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-15 04:37:12,070 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-02-15 04:37:12,070 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-02-15 04:37:12,070 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-02-15 04:37:12,070 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-02-15 04:37:12,070 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-15 04:37:12,215 INFO L234 CfgBuilder]: Building ICFG [2022-02-15 04:37:12,216 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-15 04:37:14,555 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-02-15 04:37:14,973 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2022-02-15 04:37:14,973 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2022-02-15 04:37:14,997 INFO L275 CfgBuilder]: Performing block encoding [2022-02-15 04:37:15,002 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-15 04:37:15,003 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-02-15 04:37:15,004 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 04:37:15 BoogieIcfgContainer [2022-02-15 04:37:15,005 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-15 04:37:15,006 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-15 04:37:15,006 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-15 04:37:15,012 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-15 04:37:15,012 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.02 04:37:11" (1/3) ... [2022-02-15 04:37:15,013 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32cd2fb6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 04:37:15, skipping insertion in model container [2022-02-15 04:37:15,013 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 04:37:11" (2/3) ... [2022-02-15 04:37:15,013 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32cd2fb6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 04:37:15, skipping insertion in model container [2022-02-15 04:37:15,013 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 04:37:15" (3/3) ... [2022-02-15 04:37:15,014 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_clnt.blast.01.i.cil-1.c [2022-02-15 04:37:15,022 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-02-15 04:37:15,022 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-15 04:37:15,069 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-15 04:37:15,074 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=AcceleratedInterpolation, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=QVASR [2022-02-15 04:37:15,075 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-02-15 04:37:15,098 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) [2022-02-15 04:37:15,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-02-15 04:37:15,116 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:37:15,117 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] [2022-02-15 04:37:15,117 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:37:15,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:37:15,135 INFO L85 PathProgramCache]: Analyzing trace with hash -959596949, now seen corresponding path program 1 times [2022-02-15 04:37:15,146 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:37:15,147 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [960355474] [2022-02-15 04:37:15,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:37:15,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:37:15,216 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:37:15,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:37:15,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:37:15,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:37:15,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:37:15,769 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:37:15,770 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [960355474] [2022-02-15 04:37:15,771 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [960355474] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:37:15,771 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:37:15,771 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 04:37:15,772 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555344264] [2022-02-15 04:37:15,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:37:15,778 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 04:37:15,779 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:37:15,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 04:37:15,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 04:37:15,810 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 5 states, 5 states have (on average 5.2) internal successors, (26), 4 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) [2022-02-15 04:37:17,865 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 04:37:18,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:37:18,332 INFO L93 Difference]: Finished difference Result 271 states and 444 transitions. [2022-02-15 04:37:18,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 04:37:18,339 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 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 [2022-02-15 04:37:18,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:37:18,350 INFO L225 Difference]: With dead ends: 271 [2022-02-15 04:37:18,350 INFO L226 Difference]: Without dead ends: 124 [2022-02-15 04:37:18,355 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 04:37:18,362 INFO L933 BasicCegarLoop]: 214 mSDtfsCounter, 7 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 321 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 558 SdHoareTripleChecker+Invalid, 325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 321 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-02-15 04:37:18,364 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 558 Invalid, 325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 321 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-02-15 04:37:18,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2022-02-15 04:37:18,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 123. [2022-02-15 04:37:18,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 118 states have (on average 1.4915254237288136) internal successors, (176), 118 states have internal predecessors, (176), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:37:18,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 180 transitions. [2022-02-15 04:37:18,420 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 180 transitions. Word has length 30 [2022-02-15 04:37:18,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:37:18,421 INFO L470 AbstractCegarLoop]: Abstraction has 123 states and 180 transitions. [2022-02-15 04:37:18,421 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 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) [2022-02-15 04:37:18,421 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 180 transitions. [2022-02-15 04:37:18,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-02-15 04:37:18,423 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:37:18,423 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:37:18,424 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-15 04:37:18,424 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:37:18,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:37:18,424 INFO L85 PathProgramCache]: Analyzing trace with hash -541033565, now seen corresponding path program 1 times [2022-02-15 04:37:18,425 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:37:18,426 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [184538550] [2022-02-15 04:37:18,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:37:18,450 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:37:18,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:37:18,454 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:37:18,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:37:18,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:37:18,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:37:18,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:37:18,730 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:37:18,730 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [184538550] [2022-02-15 04:37:18,730 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [184538550] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:37:18,730 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:37:18,730 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-15 04:37:18,730 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272348025] [2022-02-15 04:37:18,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:37:18,731 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-15 04:37:18,731 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:37:18,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-15 04:37:18,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-15 04:37:18,732 INFO L87 Difference]: Start difference. First operand 123 states and 180 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:37:20,751 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 04:37:21,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:37:21,051 INFO L93 Difference]: Finished difference Result 333 states and 496 transitions. [2022-02-15 04:37:21,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-15 04:37:21,052 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 45 [2022-02-15 04:37:21,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:37:21,054 INFO L225 Difference]: With dead ends: 333 [2022-02-15 04:37:21,054 INFO L226 Difference]: Without dead ends: 226 [2022-02-15 04:37:21,054 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-15 04:37:21,055 INFO L933 BasicCegarLoop]: 168 mSDtfsCounter, 125 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 323 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-02-15 04:37:21,055 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [125 Valid, 323 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 192 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-02-15 04:37:21,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2022-02-15 04:37:21,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 226. [2022-02-15 04:37:21,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226 states, 221 states have (on average 1.4751131221719458) internal successors, (326), 221 states have internal predecessors, (326), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:37:21,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 330 transitions. [2022-02-15 04:37:21,068 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 330 transitions. Word has length 45 [2022-02-15 04:37:21,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:37:21,068 INFO L470 AbstractCegarLoop]: Abstraction has 226 states and 330 transitions. [2022-02-15 04:37:21,068 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:37:21,068 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 330 transitions. [2022-02-15 04:37:21,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-02-15 04:37:21,070 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:37:21,070 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:37:21,070 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-15 04:37:21,070 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:37:21,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:37:21,070 INFO L85 PathProgramCache]: Analyzing trace with hash -391559510, now seen corresponding path program 1 times [2022-02-15 04:37:21,071 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:37:21,071 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [26690120] [2022-02-15 04:37:21,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:37:21,085 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:37:21,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:37:21,089 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:37:21,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:37:21,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:37:21,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:37:21,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:37:21,375 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:37:21,375 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [26690120] [2022-02-15 04:37:21,376 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [26690120] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:37:21,376 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:37:21,376 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 04:37:21,376 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900415744] [2022-02-15 04:37:21,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:37:21,377 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 04:37:21,377 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:37:21,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 04:37:21,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 04:37:21,378 INFO L87 Difference]: Start difference. First operand 226 states and 330 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) [2022-02-15 04:37:23,400 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 04:37:23,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:37:23,995 INFO L93 Difference]: Finished difference Result 621 states and 918 transitions. [2022-02-15 04:37:23,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 04:37:23,996 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 60 [2022-02-15 04:37:23,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:37:23,998 INFO L225 Difference]: With dead ends: 621 [2022-02-15 04:37:23,998 INFO L226 Difference]: Without dead ends: 411 [2022-02-15 04:37:24,000 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 04:37:24,001 INFO L933 BasicCegarLoop]: 99 mSDtfsCounter, 107 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 44 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 285 SdHoareTripleChecker+Invalid, 430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-02-15 04:37:24,001 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [107 Valid, 285 Invalid, 430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 385 Invalid, 1 Unknown, 0 Unchecked, 2.6s Time] [2022-02-15 04:37:24,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 411 states. [2022-02-15 04:37:24,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 411 to 274. [2022-02-15 04:37:24,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274 states, 269 states have (on average 1.5241635687732342) internal successors, (410), 269 states have internal predecessors, (410), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:37:24,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 414 transitions. [2022-02-15 04:37:24,042 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 414 transitions. Word has length 60 [2022-02-15 04:37:24,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:37:24,043 INFO L470 AbstractCegarLoop]: Abstraction has 274 states and 414 transitions. [2022-02-15 04:37:24,043 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) [2022-02-15 04:37:24,043 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 414 transitions. [2022-02-15 04:37:24,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-02-15 04:37:24,051 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:37:24,051 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:37:24,052 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-02-15 04:37:24,052 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:37:24,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:37:24,052 INFO L85 PathProgramCache]: Analyzing trace with hash 742139183, now seen corresponding path program 1 times [2022-02-15 04:37:24,052 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:37:24,054 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [199458559] [2022-02-15 04:37:24,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:37:24,074 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:37:24,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:37:24,081 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:37:24,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:37:24,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:37:24,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:37:24,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:37:24,328 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:37:24,329 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [199458559] [2022-02-15 04:37:24,329 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [199458559] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:37:24,329 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:37:24,329 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 04:37:24,329 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556175126] [2022-02-15 04:37:24,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:37:24,329 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 04:37:24,330 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:37:24,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 04:37:24,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 04:37:24,330 INFO L87 Difference]: Start difference. First operand 274 states and 414 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) [2022-02-15 04:37:26,374 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 04:37:26,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:37:26,877 INFO L93 Difference]: Finished difference Result 440 states and 669 transitions. [2022-02-15 04:37:26,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 04:37:26,878 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 61 [2022-02-15 04:37:26,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:37:26,880 INFO L225 Difference]: With dead ends: 440 [2022-02-15 04:37:26,880 INFO L226 Difference]: Without dead ends: 309 [2022-02-15 04:37:26,881 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 04:37:26,881 INFO L933 BasicCegarLoop]: 200 mSDtfsCounter, 31 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 361 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 490 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 361 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-02-15 04:37:26,882 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [31 Valid, 490 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 361 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-02-15 04:37:26,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2022-02-15 04:37:26,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 292. [2022-02-15 04:37:26,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 292 states, 287 states have (on average 1.5331010452961673) internal successors, (440), 287 states have internal predecessors, (440), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:37:26,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 444 transitions. [2022-02-15 04:37:26,899 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 444 transitions. Word has length 61 [2022-02-15 04:37:26,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:37:26,900 INFO L470 AbstractCegarLoop]: Abstraction has 292 states and 444 transitions. [2022-02-15 04:37:26,900 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) [2022-02-15 04:37:26,900 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 444 transitions. [2022-02-15 04:37:26,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-02-15 04:37:26,901 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:37:26,902 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:37:26,902 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-02-15 04:37:26,902 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:37:26,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:37:26,903 INFO L85 PathProgramCache]: Analyzing trace with hash -1969962603, now seen corresponding path program 2 times [2022-02-15 04:37:26,903 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:37:26,903 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1619171461] [2022-02-15 04:37:26,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:37:38,796 WARN L228 SmtUtils]: Spent 11.89s on a formula simplification that was a NOOP. DAG size: 241 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-02-15 04:37:50,143 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:37:50,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:37:50,149 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:37:50,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:37:50,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:37:50,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:37:50,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:37:50,424 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:37:50,424 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1619171461] [2022-02-15 04:37:50,425 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1619171461] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:37:50,425 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:37:50,425 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 04:37:50,425 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033511605] [2022-02-15 04:37:50,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:37:50,426 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 04:37:50,426 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:37:50,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 04:37:50,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 04:37:50,426 INFO L87 Difference]: Start difference. First operand 292 states and 444 transitions. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:37:52,437 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 04:37:52,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:37:52,827 INFO L93 Difference]: Finished difference Result 457 states and 697 transitions. [2022-02-15 04:37:52,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 04:37:52,827 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 1 states have call successors, (3), 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 76 [2022-02-15 04:37:52,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:37:52,829 INFO L225 Difference]: With dead ends: 457 [2022-02-15 04:37:52,829 INFO L226 Difference]: Without dead ends: 308 [2022-02-15 04:37:52,829 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 04:37:52,830 INFO L933 BasicCegarLoop]: 200 mSDtfsCounter, 37 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 354 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 490 SdHoareTripleChecker+Invalid, 363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 354 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-15 04:37:52,830 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 490 Invalid, 363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 354 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-15 04:37:52,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308 states. [2022-02-15 04:37:52,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 292. [2022-02-15 04:37:52,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 292 states, 287 states have (on average 1.529616724738676) internal successors, (439), 287 states have internal predecessors, (439), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:37:52,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 443 transitions. [2022-02-15 04:37:52,859 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 443 transitions. Word has length 76 [2022-02-15 04:37:52,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:37:52,859 INFO L470 AbstractCegarLoop]: Abstraction has 292 states and 443 transitions. [2022-02-15 04:37:52,860 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:37:52,860 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 443 transitions. [2022-02-15 04:37:52,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-02-15 04:37:52,861 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:37:52,861 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:37:52,861 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-02-15 04:37:52,861 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:37:52,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:37:52,862 INFO L85 PathProgramCache]: Analyzing trace with hash 1746685495, now seen corresponding path program 1 times [2022-02-15 04:37:52,862 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:37:52,862 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1458765407] [2022-02-15 04:37:52,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:38:09,812 WARN L228 SmtUtils]: Spent 11.17s on a formula simplification that was a NOOP. DAG size: 241 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-02-15 04:38:18,719 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:38:18,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:38:18,725 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:38:18,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:38:18,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:38:18,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:38:18,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:38:18,891 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:38:18,891 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1458765407] [2022-02-15 04:38:18,891 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1458765407] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:38:18,891 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:38:18,892 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 04:38:18,892 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506981554] [2022-02-15 04:38:18,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:38:18,892 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 04:38:18,892 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:38:18,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 04:38:18,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 04:38:18,893 INFO L87 Difference]: Start difference. First operand 292 states and 443 transitions. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:38:20,908 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 04:38:21,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:38:21,261 INFO L93 Difference]: Finished difference Result 457 states and 695 transitions. [2022-02-15 04:38:21,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 04:38:21,261 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 1 states have call successors, (3), 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 76 [2022-02-15 04:38:21,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:38:21,263 INFO L225 Difference]: With dead ends: 457 [2022-02-15 04:38:21,263 INFO L226 Difference]: Without dead ends: 308 [2022-02-15 04:38:21,263 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 04:38:21,264 INFO L933 BasicCegarLoop]: 199 mSDtfsCounter, 35 mSDsluCounter, 289 mSDsCounter, 0 mSdLazyCounter, 353 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 488 SdHoareTripleChecker+Invalid, 362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 353 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-02-15 04:38:21,264 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [35 Valid, 488 Invalid, 362 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 353 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-02-15 04:38:21,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308 states. [2022-02-15 04:38:21,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 292. [2022-02-15 04:38:21,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 292 states, 287 states have (on average 1.5261324041811846) internal successors, (438), 287 states have internal predecessors, (438), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:38:21,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 442 transitions. [2022-02-15 04:38:21,272 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 442 transitions. Word has length 76 [2022-02-15 04:38:21,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:38:21,272 INFO L470 AbstractCegarLoop]: Abstraction has 292 states and 442 transitions. [2022-02-15 04:38:21,272 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:38:21,272 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 442 transitions. [2022-02-15 04:38:21,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-02-15 04:38:21,273 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:38:21,273 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:38:21,273 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-02-15 04:38:21,273 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:38:21,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:38:21,274 INFO L85 PathProgramCache]: Analyzing trace with hash 240895612, now seen corresponding path program 1 times [2022-02-15 04:38:21,274 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:38:21,274 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1051314142] [2022-02-15 04:38:21,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:38:26,672 WARN L228 SmtUtils]: Spent 5.40s on a formula simplification. DAG size of input: 193 DAG size of output: 187 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-02-15 04:38:39,814 WARN L228 SmtUtils]: Spent 12.02s on a formula simplification that was a NOOP. DAG size: 241 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-02-15 04:38:51,092 WARN L228 SmtUtils]: Spent 6.31s on a formula simplification that was a NOOP. DAG size: 166 (called from [L 269] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-02-15 04:38:52,081 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:38:52,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:38:52,090 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:38:52,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:38:52,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:38:52,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:38:52,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:38:52,305 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:38:52,305 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1051314142] [2022-02-15 04:38:52,305 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1051314142] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:38:52,306 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:38:52,306 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 04:38:52,306 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174782396] [2022-02-15 04:38:52,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:38:52,306 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 04:38:52,307 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:38:52,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 04:38:52,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 04:38:52,307 INFO L87 Difference]: Start difference. First operand 292 states and 442 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:38:54,316 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 04:38:54,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:38:54,707 INFO L93 Difference]: Finished difference Result 457 states and 693 transitions. [2022-02-15 04:38:54,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 04:38:54,710 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 1 states have call successors, (3), 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 77 [2022-02-15 04:38:54,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:38:54,712 INFO L225 Difference]: With dead ends: 457 [2022-02-15 04:38:54,712 INFO L226 Difference]: Without dead ends: 308 [2022-02-15 04:38:54,712 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 04:38:54,713 INFO L933 BasicCegarLoop]: 198 mSDtfsCounter, 33 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 352 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 486 SdHoareTripleChecker+Invalid, 361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 352 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-15 04:38:54,713 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 486 Invalid, 361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 352 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-15 04:38:54,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308 states. [2022-02-15 04:38:54,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 292. [2022-02-15 04:38:54,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 292 states, 287 states have (on average 1.5226480836236933) internal successors, (437), 287 states have internal predecessors, (437), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:38:54,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 441 transitions. [2022-02-15 04:38:54,732 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 441 transitions. Word has length 77 [2022-02-15 04:38:54,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:38:54,734 INFO L470 AbstractCegarLoop]: Abstraction has 292 states and 441 transitions. [2022-02-15 04:38:54,734 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:38:54,734 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 441 transitions. [2022-02-15 04:38:54,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-02-15 04:38:54,737 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:38:54,737 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:38:54,738 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-02-15 04:38:54,738 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:38:54,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:38:54,738 INFO L85 PathProgramCache]: Analyzing trace with hash -654535118, now seen corresponding path program 1 times [2022-02-15 04:38:54,738 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:38:54,739 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1859941651] [2022-02-15 04:38:54,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:39:01,285 WARN L228 SmtUtils]: Spent 6.54s on a formula simplification. DAG size of input: 198 DAG size of output: 190 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-02-15 04:39:13,285 WARN L228 SmtUtils]: Spent 10.52s on a formula simplification that was a NOOP. DAG size: 241 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-02-15 04:39:23,516 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:39:23,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:39:23,535 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:39:23,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:39:23,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:39:23,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:39:23,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:39:23,692 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:39:23,692 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1859941651] [2022-02-15 04:39:23,692 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1859941651] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:39:23,692 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:39:23,692 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 04:39:23,692 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084261471] [2022-02-15 04:39:23,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:39:23,692 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 04:39:23,693 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:39:23,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 04:39:23,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 04:39:23,693 INFO L87 Difference]: Start difference. First operand 292 states and 441 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) [2022-02-15 04:39:26,622 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 04:39:28,643 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 04:39:30,666 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 04:39:31,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:39:31,109 INFO L93 Difference]: Finished difference Result 753 states and 1140 transitions. [2022-02-15 04:39:31,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 04:39:31,110 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 78 [2022-02-15 04:39:31,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:39:31,111 INFO L225 Difference]: With dead ends: 753 [2022-02-15 04:39:31,112 INFO L226 Difference]: Without dead ends: 477 [2022-02-15 04:39:31,112 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 04:39:31,113 INFO L933 BasicCegarLoop]: 99 mSDtfsCounter, 118 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 46 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 284 SdHoareTripleChecker+Invalid, 434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2022-02-15 04:39:31,113 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [118 Valid, 284 Invalid, 434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 385 Invalid, 3 Unknown, 0 Unchecked, 7.4s Time] [2022-02-15 04:39:31,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 477 states. [2022-02-15 04:39:31,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 477 to 320. [2022-02-15 04:39:31,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 320 states, 315 states have (on average 1.5174603174603174) internal successors, (478), 315 states have internal predecessors, (478), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:39:31,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 482 transitions. [2022-02-15 04:39:31,125 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 482 transitions. Word has length 78 [2022-02-15 04:39:31,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:39:31,125 INFO L470 AbstractCegarLoop]: Abstraction has 320 states and 482 transitions. [2022-02-15 04:39:31,125 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) [2022-02-15 04:39:31,125 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 482 transitions. [2022-02-15 04:39:31,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-02-15 04:39:31,126 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:39:31,126 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:39:31,126 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-02-15 04:39:31,126 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:39:31,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:39:31,126 INFO L85 PathProgramCache]: Analyzing trace with hash 191298711, now seen corresponding path program 1 times [2022-02-15 04:39:31,126 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:39:31,126 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [442419608] [2022-02-15 04:39:31,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:39:37,237 WARN L228 SmtUtils]: Spent 6.11s on a formula simplification. DAG size of input: 203 DAG size of output: 192 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-02-15 04:39:48,608 WARN L228 SmtUtils]: Spent 10.04s on a formula simplification that was a NOOP. DAG size: 241 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-02-15 04:39:57,462 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:39:57,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:39:57,488 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:39:57,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:39:57,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:39:57,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:39:57,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:39:57,707 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:39:57,708 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [442419608] [2022-02-15 04:39:57,708 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [442419608] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:39:57,708 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:39:57,708 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 04:39:57,708 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430552770] [2022-02-15 04:39:57,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:39:57,708 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 04:39:57,708 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:39:57,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 04:39:57,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 04:39:57,710 INFO L87 Difference]: Start difference. First operand 320 states and 482 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) [2022-02-15 04:39:59,720 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 04:40:00,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:40:00,116 INFO L93 Difference]: Finished difference Result 781 states and 1176 transitions. [2022-02-15 04:40:00,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 04:40:00,116 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 79 [2022-02-15 04:40:00,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:40:00,118 INFO L225 Difference]: With dead ends: 781 [2022-02-15 04:40:00,118 INFO L226 Difference]: Without dead ends: 477 [2022-02-15 04:40:00,119 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 04:40:00,119 INFO L933 BasicCegarLoop]: 99 mSDtfsCounter, 116 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 384 mSolverCounterSat, 46 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 284 SdHoareTripleChecker+Invalid, 431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 384 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-15 04:40:00,119 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [116 Valid, 284 Invalid, 431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 384 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-15 04:40:00,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 477 states. [2022-02-15 04:40:00,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 477 to 322. [2022-02-15 04:40:00,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 322 states, 317 states have (on average 1.5047318611987381) internal successors, (477), 317 states have internal predecessors, (477), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:40:00,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 322 states to 322 states and 481 transitions. [2022-02-15 04:40:00,131 INFO L78 Accepts]: Start accepts. Automaton has 322 states and 481 transitions. Word has length 79 [2022-02-15 04:40:00,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:40:00,131 INFO L470 AbstractCegarLoop]: Abstraction has 322 states and 481 transitions. [2022-02-15 04:40:00,131 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) [2022-02-15 04:40:00,131 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states and 481 transitions. [2022-02-15 04:40:00,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-02-15 04:40:00,133 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:40:00,133 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:40:00,134 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-02-15 04:40:00,134 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:40:00,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:40:00,134 INFO L85 PathProgramCache]: Analyzing trace with hash -1124636072, now seen corresponding path program 1 times [2022-02-15 04:40:00,134 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:40:00,134 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2143085520] [2022-02-15 04:40:00,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:40:00,148 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:40:00,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:40:00,154 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:40:00,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:40:00,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:40:00,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:40:00,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:40:00,332 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:40:00,332 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2143085520] [2022-02-15 04:40:00,333 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [2143085520] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:40:00,333 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:40:00,333 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-15 04:40:00,333 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966313467] [2022-02-15 04:40:00,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:40:00,333 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-15 04:40:00,333 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:40:00,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-15 04:40:00,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-15 04:40:00,334 INFO L87 Difference]: Start difference. First operand 322 states and 481 transitions. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 3 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:40:02,353 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 04:40:02,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:40:02,869 INFO L93 Difference]: Finished difference Result 647 states and 975 transitions. [2022-02-15 04:40:02,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-15 04:40:02,869 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 3 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 79 [2022-02-15 04:40:02,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:40:02,871 INFO L225 Difference]: With dead ends: 647 [2022-02-15 04:40:02,872 INFO L226 Difference]: Without dead ends: 483 [2022-02-15 04:40:02,872 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-15 04:40:02,873 INFO L933 BasicCegarLoop]: 319 mSDtfsCounter, 127 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 343 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 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, 2.5s IncrementalHoareTripleChecker+Time [2022-02-15 04:40:02,873 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [127 Valid, 483 Invalid, 351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 343 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-02-15 04:40:02,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2022-02-15 04:40:02,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 483. [2022-02-15 04:40:02,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 483 states, 478 states have (on average 1.5) internal successors, (717), 478 states have internal predecessors, (717), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:40:02,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 721 transitions. [2022-02-15 04:40:02,890 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 721 transitions. Word has length 79 [2022-02-15 04:40:02,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:40:02,890 INFO L470 AbstractCegarLoop]: Abstraction has 483 states and 721 transitions. [2022-02-15 04:40:02,890 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 3 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:40:02,891 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 721 transitions. [2022-02-15 04:40:02,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-02-15 04:40:02,891 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:40:02,892 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:40:02,892 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-02-15 04:40:02,892 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:40:02,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:40:02,893 INFO L85 PathProgramCache]: Analyzing trace with hash 798591962, now seen corresponding path program 1 times [2022-02-15 04:40:02,893 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:40:02,893 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [320689192] [2022-02-15 04:40:02,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:40:02,908 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:40:02,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:40:02,916 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:40:02,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:40:03,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:40:03,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:40:03,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:40:03,047 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:40:03,047 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [320689192] [2022-02-15 04:40:03,047 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [320689192] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:40:03,047 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:40:03,047 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-15 04:40:03,047 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454126504] [2022-02-15 04:40:03,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:40:03,048 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-15 04:40:03,048 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:40:03,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-15 04:40:03,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-15 04:40:03,049 INFO L87 Difference]: Start difference. First operand 483 states and 721 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 3 states have internal predecessors, (73), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:40:05,067 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 04:40:05,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:40:05,346 INFO L93 Difference]: Finished difference Result 832 states and 1243 transitions. [2022-02-15 04:40:05,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-15 04:40:05,346 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 3 states have internal predecessors, (73), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 79 [2022-02-15 04:40:05,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:40:05,350 INFO L225 Difference]: With dead ends: 832 [2022-02-15 04:40:05,350 INFO L226 Difference]: Without dead ends: 507 [2022-02-15 04:40:05,351 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-15 04:40:05,351 INFO L933 BasicCegarLoop]: 199 mSDtfsCounter, 15 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 215 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 363 SdHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 215 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-02-15 04:40:05,352 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 363 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 215 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-02-15 04:40:05,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 507 states. [2022-02-15 04:40:05,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 507 to 507. [2022-02-15 04:40:05,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 507 states, 502 states have (on average 1.4920318725099602) internal successors, (749), 502 states have internal predecessors, (749), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:40:05,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 507 states to 507 states and 753 transitions. [2022-02-15 04:40:05,373 INFO L78 Accepts]: Start accepts. Automaton has 507 states and 753 transitions. Word has length 79 [2022-02-15 04:40:05,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:40:05,374 INFO L470 AbstractCegarLoop]: Abstraction has 507 states and 753 transitions. [2022-02-15 04:40:05,377 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 3 states have internal predecessors, (73), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:40:05,377 INFO L276 IsEmpty]: Start isEmpty. Operand 507 states and 753 transitions. [2022-02-15 04:40:05,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-02-15 04:40:05,379 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:40:05,379 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:40:05,379 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-02-15 04:40:05,379 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:40:05,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:40:05,380 INFO L85 PathProgramCache]: Analyzing trace with hash 1647916921, now seen corresponding path program 1 times [2022-02-15 04:40:05,380 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:40:05,380 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [708899428] [2022-02-15 04:40:05,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:40:05,411 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:40:05,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:40:05,420 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:40:05,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:40:05,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:40:05,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:40:05,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:40:05,666 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:40:05,666 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [708899428] [2022-02-15 04:40:05,666 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [708899428] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:40:05,666 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:40:05,666 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-15 04:40:05,666 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099067551] [2022-02-15 04:40:05,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:40:05,667 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-15 04:40:05,667 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:40:05,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-15 04:40:05,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-15 04:40:05,667 INFO L87 Difference]: Start difference. First operand 507 states and 753 transitions. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 3 states have internal predecessors, (71), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:40:07,678 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 04:40:08,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:40:08,117 INFO L93 Difference]: Finished difference Result 1001 states and 1495 transitions. [2022-02-15 04:40:08,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-15 04:40:08,118 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 3 states have internal predecessors, (71), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 99 [2022-02-15 04:40:08,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:40:08,120 INFO L225 Difference]: With dead ends: 1001 [2022-02-15 04:40:08,120 INFO L226 Difference]: Without dead ends: 652 [2022-02-15 04:40:08,121 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-15 04:40:08,122 INFO L933 BasicCegarLoop]: 318 mSDtfsCounter, 127 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 342 mSolverCounterSat, 7 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, 7 IncrementalHoareTripleChecker+Valid, 342 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-15 04:40:08,122 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [127 Valid, 482 Invalid, 350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 342 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-15 04:40:08,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 652 states. [2022-02-15 04:40:08,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 652 to 652. [2022-02-15 04:40:08,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 652 states, 647 states have (on average 1.491499227202473) internal successors, (965), 647 states have internal predecessors, (965), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:40:08,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 652 states to 652 states and 969 transitions. [2022-02-15 04:40:08,149 INFO L78 Accepts]: Start accepts. Automaton has 652 states and 969 transitions. Word has length 99 [2022-02-15 04:40:08,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:40:08,149 INFO L470 AbstractCegarLoop]: Abstraction has 652 states and 969 transitions. [2022-02-15 04:40:08,149 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 3 states have internal predecessors, (71), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:40:08,149 INFO L276 IsEmpty]: Start isEmpty. Operand 652 states and 969 transitions. [2022-02-15 04:40:08,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-02-15 04:40:08,151 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:40:08,151 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] [2022-02-15 04:40:08,151 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-02-15 04:40:08,151 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:40:08,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:40:08,152 INFO L85 PathProgramCache]: Analyzing trace with hash 1619812542, now seen corresponding path program 1 times [2022-02-15 04:40:08,152 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:40:08,152 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [345750294] [2022-02-15 04:40:08,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:40:08,182 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:40:08,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:40:08,191 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:40:08,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:40:08,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:40:08,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:40:08,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:40:08,359 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:40:08,359 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [345750294] [2022-02-15 04:40:08,359 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [345750294] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:40:08,359 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:40:08,359 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-15 04:40:08,359 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348832351] [2022-02-15 04:40:08,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:40:08,360 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-15 04:40:08,360 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:40:08,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-15 04:40:08,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-15 04:40:08,360 INFO L87 Difference]: Start difference. First operand 652 states and 969 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) [2022-02-15 04:40:10,375 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 04:40:10,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:40:10,853 INFO L93 Difference]: Finished difference Result 1305 states and 1948 transitions. [2022-02-15 04:40:10,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-15 04:40:10,853 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 [2022-02-15 04:40:10,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:40:10,856 INFO L225 Difference]: With dead ends: 1305 [2022-02-15 04:40:10,856 INFO L226 Difference]: Without dead ends: 811 [2022-02-15 04:40:10,857 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-15 04:40:10,857 INFO L933 BasicCegarLoop]: 316 mSDtfsCounter, 126 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 340 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 480 SdHoareTripleChecker+Invalid, 348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 340 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-02-15 04:40:10,857 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [126 Valid, 480 Invalid, 348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 340 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-02-15 04:40:10,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 811 states. [2022-02-15 04:40:10,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 811 to 811. [2022-02-15 04:40:10,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 811 states, 806 states have (on average 1.4913151364764268) internal successors, (1202), 806 states have internal predecessors, (1202), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:40:10,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 811 states to 811 states and 1206 transitions. [2022-02-15 04:40:10,882 INFO L78 Accepts]: Start accepts. Automaton has 811 states and 1206 transitions. Word has length 119 [2022-02-15 04:40:10,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:40:10,882 INFO L470 AbstractCegarLoop]: Abstraction has 811 states and 1206 transitions. [2022-02-15 04:40:10,882 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) [2022-02-15 04:40:10,882 INFO L276 IsEmpty]: Start isEmpty. Operand 811 states and 1206 transitions. [2022-02-15 04:40:10,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-02-15 04:40:10,883 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:40:10,883 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:40:10,884 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-02-15 04:40:10,884 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:40:10,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:40:10,884 INFO L85 PathProgramCache]: Analyzing trace with hash -209578542, now seen corresponding path program 1 times [2022-02-15 04:40:10,884 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:40:10,884 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1429112435] [2022-02-15 04:40:10,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:40:10,913 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:40:10,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:40:10,921 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:40:10,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:40:11,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:40:11,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:40:11,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:40:11,070 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:40:11,070 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1429112435] [2022-02-15 04:40:11,070 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1429112435] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:40:11,070 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:40:11,070 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 04:40:11,070 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619051781] [2022-02-15 04:40:11,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:40:11,070 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 04:40:11,070 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:40:11,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 04:40:11,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 04:40:11,071 INFO L87 Difference]: Start difference. First operand 811 states and 1206 transitions. Second operand has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:40:13,079 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 04:40:13,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:40:13,665 INFO L93 Difference]: Finished difference Result 2069 states and 3064 transitions. [2022-02-15 04:40:13,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 04:40:13,666 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 146 [2022-02-15 04:40:13,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:40:13,671 INFO L225 Difference]: With dead ends: 2069 [2022-02-15 04:40:13,671 INFO L226 Difference]: Without dead ends: 1274 [2022-02-15 04:40:13,673 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 04:40:13,674 INFO L933 BasicCegarLoop]: 245 mSDtfsCounter, 99 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 552 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 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, 2.5s IncrementalHoareTripleChecker+Time [2022-02-15 04:40:13,674 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [99 Valid, 582 Invalid, 563 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 552 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-02-15 04:40:13,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1274 states. [2022-02-15 04:40:13,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1274 to 916. [2022-02-15 04:40:13,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 916 states, 911 states have (on average 1.5005488474204172) internal successors, (1367), 911 states have internal predecessors, (1367), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:40:13,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 916 states to 916 states and 1371 transitions. [2022-02-15 04:40:13,726 INFO L78 Accepts]: Start accepts. Automaton has 916 states and 1371 transitions. Word has length 146 [2022-02-15 04:40:13,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:40:13,726 INFO L470 AbstractCegarLoop]: Abstraction has 916 states and 1371 transitions. [2022-02-15 04:40:13,726 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:40:13,726 INFO L276 IsEmpty]: Start isEmpty. Operand 916 states and 1371 transitions. [2022-02-15 04:40:13,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-02-15 04:40:13,728 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:40:13,729 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:40:13,729 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-02-15 04:40:13,729 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:40:13,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:40:13,729 INFO L85 PathProgramCache]: Analyzing trace with hash -238078832, now seen corresponding path program 1 times [2022-02-15 04:40:13,729 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:40:13,730 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1081859368] [2022-02-15 04:40:13,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:40:13,758 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:40:13,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:40:13,764 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:40:13,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:40:13,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:40:13,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:40:13,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:40:13,934 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:40:13,934 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1081859368] [2022-02-15 04:40:13,934 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1081859368] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:40:13,935 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:40:13,935 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 04:40:13,935 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980282974] [2022-02-15 04:40:13,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:40:13,936 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 04:40:13,936 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:40:13,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 04:40:13,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 04:40:13,936 INFO L87 Difference]: Start difference. First operand 916 states and 1371 transitions. Second operand has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:40:15,951 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 04:40:16,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:40:16,486 INFO L93 Difference]: Finished difference Result 2310 states and 3461 transitions. [2022-02-15 04:40:16,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 04:40:16,486 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 146 [2022-02-15 04:40:16,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:40:16,491 INFO L225 Difference]: With dead ends: 2310 [2022-02-15 04:40:16,491 INFO L226 Difference]: Without dead ends: 1410 [2022-02-15 04:40:16,495 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 04:40:16,497 INFO L933 BasicCegarLoop]: 99 mSDtfsCounter, 104 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 44 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 284 SdHoareTripleChecker+Invalid, 430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-15 04:40:16,498 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [104 Valid, 284 Invalid, 430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 385 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-15 04:40:16,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1410 states. [2022-02-15 04:40:16,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1410 to 1082. [2022-02-15 04:40:16,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1082 states, 1077 states have (on average 1.5357474466109564) internal successors, (1654), 1077 states have internal predecessors, (1654), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:40:16,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1082 states to 1082 states and 1658 transitions. [2022-02-15 04:40:16,569 INFO L78 Accepts]: Start accepts. Automaton has 1082 states and 1658 transitions. Word has length 146 [2022-02-15 04:40:16,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:40:16,569 INFO L470 AbstractCegarLoop]: Abstraction has 1082 states and 1658 transitions. [2022-02-15 04:40:16,569 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:40:16,570 INFO L276 IsEmpty]: Start isEmpty. Operand 1082 states and 1658 transitions. [2022-02-15 04:40:16,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-02-15 04:40:16,573 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:40:16,573 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:40:16,573 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-02-15 04:40:16,573 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:40:16,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:40:16,575 INFO L85 PathProgramCache]: Analyzing trace with hash 846696567, now seen corresponding path program 1 times [2022-02-15 04:40:16,575 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:40:16,575 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [249949922] [2022-02-15 04:40:16,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:40:16,624 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:40:16,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:40:16,632 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:40:16,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:40:16,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:40:16,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:40:16,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:40:16,833 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:40:16,833 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [249949922] [2022-02-15 04:40:16,833 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [249949922] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:40:16,834 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:40:16,834 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 04:40:16,834 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193825879] [2022-02-15 04:40:16,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:40:16,834 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 04:40:16,834 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:40:16,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 04:40:16,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 04:40:16,835 INFO L87 Difference]: Start difference. First operand 1082 states and 1658 transitions. Second operand has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:40:18,846 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 04:40:19,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:40:19,283 INFO L93 Difference]: Finished difference Result 2263 states and 3431 transitions. [2022-02-15 04:40:19,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 04:40:19,285 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 147 [2022-02-15 04:40:19,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:40:19,288 INFO L225 Difference]: With dead ends: 2263 [2022-02-15 04:40:19,289 INFO L226 Difference]: Without dead ends: 1197 [2022-02-15 04:40:19,290 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 04:40:19,291 INFO L933 BasicCegarLoop]: 217 mSDtfsCounter, 47 mSDsluCounter, 309 mSDsCounter, 0 mSdLazyCounter, 410 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 526 SdHoareTripleChecker+Invalid, 419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 410 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-15 04:40:19,291 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [47 Valid, 526 Invalid, 419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 410 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-15 04:40:19,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1197 states. [2022-02-15 04:40:19,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1197 to 1082. [2022-02-15 04:40:19,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1082 states, 1077 states have (on average 1.532033426183844) internal successors, (1650), 1077 states have internal predecessors, (1650), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:40:19,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1082 states to 1082 states and 1654 transitions. [2022-02-15 04:40:19,329 INFO L78 Accepts]: Start accepts. Automaton has 1082 states and 1654 transitions. Word has length 147 [2022-02-15 04:40:19,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:40:19,330 INFO L470 AbstractCegarLoop]: Abstraction has 1082 states and 1654 transitions. [2022-02-15 04:40:19,330 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:40:19,330 INFO L276 IsEmpty]: Start isEmpty. Operand 1082 states and 1654 transitions. [2022-02-15 04:40:19,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2022-02-15 04:40:19,332 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:40:19,332 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:40:19,332 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-02-15 04:40:19,332 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:40:19,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:40:19,332 INFO L85 PathProgramCache]: Analyzing trace with hash -1736017051, now seen corresponding path program 2 times [2022-02-15 04:40:19,332 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:40:19,332 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1887650526] [2022-02-15 04:40:19,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:40:36,772 WARN L228 SmtUtils]: Spent 16.95s on a formula simplification that was a NOOP. DAG size: 241 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-02-15 04:40:48,296 WARN L228 SmtUtils]: Spent 5.34s on a formula simplification that was a NOOP. DAG size: 166 (called from [L 269] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-02-15 04:40:50,572 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:40:50,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:40:50,606 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:40:50,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:40:50,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:40:50,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:40:50,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:40:50,777 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:40:50,777 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1887650526] [2022-02-15 04:40:50,777 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1887650526] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:40:50,777 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:40:50,777 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 04:40:50,777 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965887429] [2022-02-15 04:40:50,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:40:50,777 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 04:40:50,778 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:40:50,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 04:40:50,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 04:40:50,778 INFO L87 Difference]: Start difference. First operand 1082 states and 1654 transitions. Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:40:52,787 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 04:40:53,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:40:53,226 INFO L93 Difference]: Finished difference Result 2481 states and 3750 transitions. [2022-02-15 04:40:53,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 04:40:53,227 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 162 [2022-02-15 04:40:53,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:40:53,232 INFO L225 Difference]: With dead ends: 2481 [2022-02-15 04:40:53,232 INFO L226 Difference]: Without dead ends: 1415 [2022-02-15 04:40:53,234 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 04:40:53,235 INFO L933 BasicCegarLoop]: 106 mSDtfsCounter, 111 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 381 mSolverCounterSat, 43 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 302 SdHoareTripleChecker+Invalid, 425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 381 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-15 04:40:53,236 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [111 Valid, 302 Invalid, 425 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 381 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-15 04:40:53,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1415 states. [2022-02-15 04:40:53,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1415 to 1082. [2022-02-15 04:40:53,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1082 states, 1077 states have (on average 1.5143918291550604) internal successors, (1631), 1077 states have internal predecessors, (1631), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:40:53,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1082 states to 1082 states and 1635 transitions. [2022-02-15 04:40:53,304 INFO L78 Accepts]: Start accepts. Automaton has 1082 states and 1635 transitions. Word has length 162 [2022-02-15 04:40:53,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:40:53,304 INFO L470 AbstractCegarLoop]: Abstraction has 1082 states and 1635 transitions. [2022-02-15 04:40:53,304 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:40:53,305 INFO L276 IsEmpty]: Start isEmpty. Operand 1082 states and 1635 transitions. [2022-02-15 04:40:53,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2022-02-15 04:40:53,326 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:40:53,327 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 6, 6, 6, 6, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:40:53,327 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-02-15 04:40:53,327 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:40:53,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:40:53,328 INFO L85 PathProgramCache]: Analyzing trace with hash 854464899, now seen corresponding path program 1 times [2022-02-15 04:40:53,328 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:40:53,328 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [129269397] [2022-02-15 04:40:53,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:40:58,417 WARN L228 SmtUtils]: Spent 5.09s on a formula simplification. DAG size of input: 189 DAG size of output: 186 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-02-15 04:41:18,559 WARN L228 SmtUtils]: Spent 18.39s on a formula simplification that was a NOOP. DAG size: 241 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-02-15 04:41:33,467 WARN L228 SmtUtils]: Spent 7.72s on a formula simplification that was a NOOP. DAG size: 166 (called from [L 269] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-02-15 04:41:35,737 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:41:35,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:41:35,746 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:41:35,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:41:35,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:41:35,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:41:35,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:41:35,992 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:41:35,992 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [129269397] [2022-02-15 04:41:35,992 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [129269397] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:41:35,992 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:41:35,992 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 04:41:35,992 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541191365] [2022-02-15 04:41:35,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:41:35,993 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 04:41:35,993 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:41:35,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 04:41:35,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 04:41:35,993 INFO L87 Difference]: Start difference. First operand 1082 states and 1635 transitions. Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:41:38,007 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 04:41:38,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:41:38,435 INFO L93 Difference]: Finished difference Result 2482 states and 3713 transitions. [2022-02-15 04:41:38,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 04:41:38,436 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 162 [2022-02-15 04:41:38,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:41:38,440 INFO L225 Difference]: With dead ends: 2482 [2022-02-15 04:41:38,440 INFO L226 Difference]: Without dead ends: 1416 [2022-02-15 04:41:38,442 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 04:41:38,442 INFO L933 BasicCegarLoop]: 99 mSDtfsCounter, 118 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 384 mSolverCounterSat, 46 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 284 SdHoareTripleChecker+Invalid, 431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 384 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-15 04:41:38,443 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [118 Valid, 284 Invalid, 431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 384 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-15 04:41:38,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1416 states. [2022-02-15 04:41:38,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1416 to 1082. [2022-02-15 04:41:38,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1082 states, 1077 states have (on average 1.4967502321262767) internal successors, (1612), 1077 states have internal predecessors, (1612), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:41:38,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1082 states to 1082 states and 1616 transitions. [2022-02-15 04:41:38,495 INFO L78 Accepts]: Start accepts. Automaton has 1082 states and 1616 transitions. Word has length 162 [2022-02-15 04:41:38,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:41:38,495 INFO L470 AbstractCegarLoop]: Abstraction has 1082 states and 1616 transitions. [2022-02-15 04:41:38,495 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:41:38,495 INFO L276 IsEmpty]: Start isEmpty. Operand 1082 states and 1616 transitions. [2022-02-15 04:41:38,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2022-02-15 04:41:38,497 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:41:38,497 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 6, 6, 6, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:41:38,497 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-02-15 04:41:38,497 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:41:38,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:41:38,498 INFO L85 PathProgramCache]: Analyzing trace with hash -1155949814, now seen corresponding path program 1 times [2022-02-15 04:41:38,498 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:41:38,498 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [438392681] [2022-02-15 04:41:38,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:41:44,949 WARN L228 SmtUtils]: Spent 5.97s on a formula simplification. DAG size of input: 193 DAG size of output: 187 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-02-15 04:42:09,603 WARN L228 SmtUtils]: Spent 23.25s on a formula simplification that was a NOOP. DAG size: 241 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-02-15 04:42:20,935 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:42:20,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:42:20,946 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:42:21,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:42:21,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:42:21,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:42:21,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:42:21,177 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:42:21,177 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [438392681] [2022-02-15 04:42:21,177 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [438392681] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:42:21,178 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:42:21,178 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 04:42:21,178 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506225579] [2022-02-15 04:42:21,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:42:21,178 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 04:42:21,178 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:42:21,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 04:42:21,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 04:42:21,179 INFO L87 Difference]: Start difference. First operand 1082 states and 1616 transitions. Second operand has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:42:23,192 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 04:42:23,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:42:23,682 INFO L93 Difference]: Finished difference Result 2437 states and 3620 transitions. [2022-02-15 04:42:23,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 04:42:23,683 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 163 [2022-02-15 04:42:23,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:42:23,688 INFO L225 Difference]: With dead ends: 2437 [2022-02-15 04:42:23,689 INFO L226 Difference]: Without dead ends: 1371 [2022-02-15 04:42:23,691 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 04:42:23,692 INFO L933 BasicCegarLoop]: 104 mSDtfsCounter, 109 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 375 mSolverCounterSat, 40 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 294 SdHoareTripleChecker+Invalid, 416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 375 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-15 04:42:23,692 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [109 Valid, 294 Invalid, 416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 375 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-15 04:42:23,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1371 states. [2022-02-15 04:42:23,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1371 to 1082. [2022-02-15 04:42:23,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1082 states, 1077 states have (on average 1.4791086350974931) internal successors, (1593), 1077 states have internal predecessors, (1593), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:42:23,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1082 states to 1082 states and 1597 transitions. [2022-02-15 04:42:23,771 INFO L78 Accepts]: Start accepts. Automaton has 1082 states and 1597 transitions. Word has length 163 [2022-02-15 04:42:23,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:42:23,771 INFO L470 AbstractCegarLoop]: Abstraction has 1082 states and 1597 transitions. [2022-02-15 04:42:23,772 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:42:23,772 INFO L276 IsEmpty]: Start isEmpty. Operand 1082 states and 1597 transitions. [2022-02-15 04:42:23,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-02-15 04:42:23,774 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:42:23,775 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:42:23,775 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-02-15 04:42:23,775 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:42:23,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:42:23,775 INFO L85 PathProgramCache]: Analyzing trace with hash -1086489236, now seen corresponding path program 1 times [2022-02-15 04:42:23,776 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:42:23,776 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [282710146] [2022-02-15 04:42:23,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:42:45,725 WARN L228 SmtUtils]: Spent 21.44s on a formula simplification that was a NOOP. DAG size: 241 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-02-15 04:42:58,961 WARN L228 SmtUtils]: Spent 6.98s on a formula simplification that was a NOOP. DAG size: 166 (called from [L 269] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-02-15 04:43:05,577 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:43:05,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:43:05,590 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:43:05,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:43:05,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:43:05,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:43:05,765 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:43:05,765 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:43:05,766 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [282710146] [2022-02-15 04:43:05,766 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [282710146] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:43:05,766 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:43:05,766 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-15 04:43:05,766 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146340298] [2022-02-15 04:43:05,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:43:05,767 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-15 04:43:05,767 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:43:05,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-15 04:43:05,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-02-15 04:43:05,767 INFO L87 Difference]: Start difference. First operand 1082 states and 1597 transitions. Second operand has 6 states, 6 states have (on average 17.333333333333332) internal successors, (104), 5 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:43:07,780 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 04:43:08,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:43:08,743 INFO L93 Difference]: Finished difference Result 3074 states and 4556 transitions. [2022-02-15 04:43:08,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-15 04:43:08,744 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.333333333333332) internal successors, (104), 5 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 165 [2022-02-15 04:43:08,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:43:08,751 INFO L225 Difference]: With dead ends: 3074 [2022-02-15 04:43:08,751 INFO L226 Difference]: Without dead ends: 2008 [2022-02-15 04:43:08,754 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-02-15 04:43:08,754 INFO L933 BasicCegarLoop]: 246 mSDtfsCounter, 92 mSDsluCounter, 507 mSDsCounter, 0 mSdLazyCounter, 709 mSolverCounterSat, 24 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 753 SdHoareTripleChecker+Invalid, 734 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 709 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-02-15 04:43:08,754 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [92 Valid, 753 Invalid, 734 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 709 Invalid, 1 Unknown, 0 Unchecked, 2.8s Time] [2022-02-15 04:43:08,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2008 states. [2022-02-15 04:43:08,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2008 to 1931. [2022-02-15 04:43:08,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1931 states, 1926 states have (on average 1.4948078920041536) internal successors, (2879), 1926 states have internal predecessors, (2879), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:43:08,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1931 states to 1931 states and 2883 transitions. [2022-02-15 04:43:08,898 INFO L78 Accepts]: Start accepts. Automaton has 1931 states and 2883 transitions. Word has length 165 [2022-02-15 04:43:08,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:43:08,898 INFO L470 AbstractCegarLoop]: Abstraction has 1931 states and 2883 transitions. [2022-02-15 04:43:08,898 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.333333333333332) internal successors, (104), 5 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:43:08,898 INFO L276 IsEmpty]: Start isEmpty. Operand 1931 states and 2883 transitions. [2022-02-15 04:43:08,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-02-15 04:43:08,903 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:43:08,903 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:43:08,903 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-02-15 04:43:08,903 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:43:08,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:43:08,904 INFO L85 PathProgramCache]: Analyzing trace with hash 451850794, now seen corresponding path program 1 times [2022-02-15 04:43:08,904 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:43:08,904 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [345504291] [2022-02-15 04:43:08,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:43:20,089 WARN L228 SmtUtils]: Spent 10.57s on a formula simplification that was a NOOP. DAG size: 241 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-02-15 04:43:37,043 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:43:37,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:43:37,056 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:43:37,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:43:37,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:43:37,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:43:37,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:43:37,259 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:43:37,259 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [345504291] [2022-02-15 04:43:37,259 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [345504291] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:43:37,259 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:43:37,259 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 04:43:37,259 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181381349] [2022-02-15 04:43:37,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:43:37,260 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 04:43:37,260 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:43:37,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 04:43:37,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 04:43:37,261 INFO L87 Difference]: Start difference. First operand 1931 states and 2883 transitions. Second operand has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:43:39,273 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 04:43:39,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:43:39,854 INFO L93 Difference]: Finished difference Result 3994 states and 5915 transitions. [2022-02-15 04:43:39,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 04:43:39,855 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 165 [2022-02-15 04:43:39,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:43:39,860 INFO L225 Difference]: With dead ends: 3994 [2022-02-15 04:43:39,860 INFO L226 Difference]: Without dead ends: 2079 [2022-02-15 04:43:39,862 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 04:43:39,863 INFO L933 BasicCegarLoop]: 208 mSDtfsCounter, 42 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 379 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 507 SdHoareTripleChecker+Invalid, 385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 379 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-15 04:43:39,863 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [42 Valid, 507 Invalid, 385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 379 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-15 04:43:39,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2079 states. [2022-02-15 04:43:39,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2079 to 1931. [2022-02-15 04:43:39,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1931 states, 1926 states have (on average 1.4906542056074767) internal successors, (2871), 1926 states have internal predecessors, (2871), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:43:39,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1931 states to 1931 states and 2875 transitions. [2022-02-15 04:43:39,967 INFO L78 Accepts]: Start accepts. Automaton has 1931 states and 2875 transitions. Word has length 165 [2022-02-15 04:43:39,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:43:39,967 INFO L470 AbstractCegarLoop]: Abstraction has 1931 states and 2875 transitions. [2022-02-15 04:43:39,967 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:43:39,967 INFO L276 IsEmpty]: Start isEmpty. Operand 1931 states and 2875 transitions. [2022-02-15 04:43:39,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-02-15 04:43:39,971 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:43:39,971 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:43:39,971 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-02-15 04:43:39,971 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:43:39,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:43:39,971 INFO L85 PathProgramCache]: Analyzing trace with hash -44160416, now seen corresponding path program 1 times [2022-02-15 04:43:39,971 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:43:39,972 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1075696223] [2022-02-15 04:43:39,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:43:55,288 WARN L228 SmtUtils]: Spent 14.74s on a formula simplification that was a NOOP. DAG size: 241 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-02-15 04:44:05,838 WARN L228 SmtUtils]: Spent 5.44s on a formula simplification that was a NOOP. DAG size: 166 (called from [L 269] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-02-15 04:44:12,249 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:44:12,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:44:12,277 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:44:12,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:44:12,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:44:12,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:44:12,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:44:12,440 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:44:12,440 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1075696223] [2022-02-15 04:44:12,440 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1075696223] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:44:12,440 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:44:12,440 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 04:44:12,440 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350154183] [2022-02-15 04:44:12,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:44:12,440 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 04:44:12,440 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:44:12,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 04:44:12,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 04:44:12,441 INFO L87 Difference]: Start difference. First operand 1931 states and 2875 transitions. Second operand has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:44:14,450 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 04:44:14,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:44:14,995 INFO L93 Difference]: Finished difference Result 3994 states and 5899 transitions. [2022-02-15 04:44:14,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 04:44:14,997 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 165 [2022-02-15 04:44:14,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:44:15,003 INFO L225 Difference]: With dead ends: 3994 [2022-02-15 04:44:15,003 INFO L226 Difference]: Without dead ends: 2079 [2022-02-15 04:44:15,005 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 04:44:15,005 INFO L933 BasicCegarLoop]: 207 mSDtfsCounter, 39 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 378 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 505 SdHoareTripleChecker+Invalid, 384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 378 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-15 04:44:15,005 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [39 Valid, 505 Invalid, 384 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 378 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-15 04:44:15,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2079 states. [2022-02-15 04:44:15,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2079 to 1931. [2022-02-15 04:44:15,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1931 states, 1926 states have (on average 1.4865005192107996) internal successors, (2863), 1926 states have internal predecessors, (2863), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:44:15,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1931 states to 1931 states and 2867 transitions. [2022-02-15 04:44:15,129 INFO L78 Accepts]: Start accepts. Automaton has 1931 states and 2867 transitions. Word has length 165 [2022-02-15 04:44:15,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:44:15,129 INFO L470 AbstractCegarLoop]: Abstraction has 1931 states and 2867 transitions. [2022-02-15 04:44:15,130 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:44:15,130 INFO L276 IsEmpty]: Start isEmpty. Operand 1931 states and 2867 transitions. [2022-02-15 04:44:15,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2022-02-15 04:44:15,135 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:44:15,135 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 5, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:44:15,135 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-02-15 04:44:15,136 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:44:15,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:44:15,136 INFO L85 PathProgramCache]: Analyzing trace with hash -230274717, now seen corresponding path program 1 times [2022-02-15 04:44:15,136 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:44:15,136 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1625957234] [2022-02-15 04:44:15,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:44:29,019 WARN L228 SmtUtils]: Spent 12.97s on a formula simplification that was a NOOP. DAG size: 241 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-02-15 04:44:44,160 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:44:44,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:44:44,171 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:44:44,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:44:44,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:44:44,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:44:44,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:44:44,333 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:44:44,334 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1625957234] [2022-02-15 04:44:44,334 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1625957234] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:44:44,334 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:44:44,334 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 04:44:44,334 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320328847] [2022-02-15 04:44:44,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:44:44,334 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 04:44:44,334 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:44:44,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 04:44:44,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 04:44:44,335 INFO L87 Difference]: Start difference. First operand 1931 states and 2867 transitions. Second operand has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:44:46,344 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 04:44:46,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:44:46,806 INFO L93 Difference]: Finished difference Result 3962 states and 5845 transitions. [2022-02-15 04:44:46,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 04:44:46,806 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 166 [2022-02-15 04:44:46,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:44:46,820 INFO L225 Difference]: With dead ends: 3962 [2022-02-15 04:44:46,820 INFO L226 Difference]: Without dead ends: 2047 [2022-02-15 04:44:46,871 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 04:44:46,871 INFO L933 BasicCegarLoop]: 203 mSDtfsCounter, 35 mSDsluCounter, 294 mSDsCounter, 0 mSdLazyCounter, 363 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 497 SdHoareTripleChecker+Invalid, 369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 363 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-02-15 04:44:46,871 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [35 Valid, 497 Invalid, 369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 363 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-02-15 04:44:46,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2047 states. [2022-02-15 04:44:47,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2047 to 1931. [2022-02-15 04:44:47,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1931 states, 1926 states have (on average 1.4823468328141225) internal successors, (2855), 1926 states have internal predecessors, (2855), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:44:47,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1931 states to 1931 states and 2859 transitions. [2022-02-15 04:44:47,132 INFO L78 Accepts]: Start accepts. Automaton has 1931 states and 2859 transitions. Word has length 166 [2022-02-15 04:44:47,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:44:47,132 INFO L470 AbstractCegarLoop]: Abstraction has 1931 states and 2859 transitions. [2022-02-15 04:44:47,133 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:44:47,133 INFO L276 IsEmpty]: Start isEmpty. Operand 1931 states and 2859 transitions. [2022-02-15 04:44:47,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2022-02-15 04:44:47,137 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:44:47,137 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 4, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:44:47,137 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-02-15 04:44:47,137 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:44:47,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:44:47,138 INFO L85 PathProgramCache]: Analyzing trace with hash 635757817, now seen corresponding path program 1 times [2022-02-15 04:44:47,138 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:44:47,138 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1151659729] [2022-02-15 04:44:47,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:45:19,152 WARN L228 SmtUtils]: Spent 31.47s on a formula simplification that was a NOOP. DAG size: 241 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-02-15 04:45:35,317 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:45:35,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:45:35,331 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:45:35,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:45:35,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:45:35,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:45:35,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:45:35,517 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:45:35,517 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1151659729] [2022-02-15 04:45:35,518 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1151659729] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:45:35,518 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:45:35,518 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 04:45:35,518 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962978286] [2022-02-15 04:45:35,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:45:35,518 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 04:45:35,518 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:45:35,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 04:45:35,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 04:45:35,519 INFO L87 Difference]: Start difference. First operand 1931 states and 2859 transitions. Second operand has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:45:37,528 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 04:45:37,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:45:37,980 INFO L93 Difference]: Finished difference Result 3920 states and 5777 transitions. [2022-02-15 04:45:37,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 04:45:37,981 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 166 [2022-02-15 04:45:37,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:45:37,987 INFO L225 Difference]: With dead ends: 3920 [2022-02-15 04:45:37,988 INFO L226 Difference]: Without dead ends: 2005 [2022-02-15 04:45:37,991 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 04:45:37,991 INFO L933 BasicCegarLoop]: 197 mSDtfsCounter, 26 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 350 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 485 SdHoareTripleChecker+Invalid, 356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 350 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-02-15 04:45:37,992 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [26 Valid, 485 Invalid, 356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 350 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-02-15 04:45:37,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2005 states. [2022-02-15 04:45:38,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2005 to 1931. [2022-02-15 04:45:38,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1931 states, 1926 states have (on average 1.4781931464174456) internal successors, (2847), 1926 states have internal predecessors, (2847), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:45:38,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1931 states to 1931 states and 2851 transitions. [2022-02-15 04:45:38,160 INFO L78 Accepts]: Start accepts. Automaton has 1931 states and 2851 transitions. Word has length 166 [2022-02-15 04:45:38,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:45:38,160 INFO L470 AbstractCegarLoop]: Abstraction has 1931 states and 2851 transitions. [2022-02-15 04:45:38,160 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:45:38,160 INFO L276 IsEmpty]: Start isEmpty. Operand 1931 states and 2851 transitions. [2022-02-15 04:45:38,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2022-02-15 04:45:38,163 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:45:38,163 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 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, 1, 1, 1] [2022-02-15 04:45:38,163 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-02-15 04:45:38,163 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:45:38,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:45:38,163 INFO L85 PathProgramCache]: Analyzing trace with hash 1603018293, now seen corresponding path program 1 times [2022-02-15 04:45:38,163 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:45:38,163 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [20022862] [2022-02-15 04:45:38,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:45:38,201 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:45:38,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:45:38,213 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:45:38,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:45:38,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:45:38,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:45:38,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:45:38,394 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:45:38,394 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [20022862] [2022-02-15 04:45:38,394 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [20022862] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:45:38,394 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:45:38,394 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 04:45:38,394 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225955449] [2022-02-15 04:45:38,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:45:38,395 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 04:45:38,395 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:45:38,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 04:45:38,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 04:45:38,395 INFO L87 Difference]: Start difference. First operand 1931 states and 2851 transitions. Second operand has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:45:40,411 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 04:45:41,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:45:41,126 INFO L93 Difference]: Finished difference Result 4440 states and 6520 transitions. [2022-02-15 04:45:41,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 04:45:41,126 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 168 [2022-02-15 04:45:41,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:45:41,154 INFO L225 Difference]: With dead ends: 4440 [2022-02-15 04:45:41,154 INFO L226 Difference]: Without dead ends: 2525 [2022-02-15 04:45:41,158 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 04:45:41,159 INFO L933 BasicCegarLoop]: 100 mSDtfsCounter, 104 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 45 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 286 SdHoareTripleChecker+Invalid, 431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-15 04:45:41,159 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [104 Valid, 286 Invalid, 431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 385 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-15 04:45:41,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2525 states. [2022-02-15 04:45:41,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2525 to 1941. [2022-02-15 04:45:41,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1941 states, 1936 states have (on average 1.4705578512396693) internal successors, (2847), 1936 states have internal predecessors, (2847), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:45:41,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1941 states to 1941 states and 2851 transitions. [2022-02-15 04:45:41,367 INFO L78 Accepts]: Start accepts. Automaton has 1941 states and 2851 transitions. Word has length 168 [2022-02-15 04:45:41,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:45:41,368 INFO L470 AbstractCegarLoop]: Abstraction has 1941 states and 2851 transitions. [2022-02-15 04:45:41,369 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:45:41,369 INFO L276 IsEmpty]: Start isEmpty. Operand 1941 states and 2851 transitions. [2022-02-15 04:45:41,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2022-02-15 04:45:41,396 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:45:41,396 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:45:41,396 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-02-15 04:45:41,397 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:45:41,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:45:41,397 INFO L85 PathProgramCache]: Analyzing trace with hash 908405628, now seen corresponding path program 1 times [2022-02-15 04:45:41,397 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:45:41,397 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [43323947] [2022-02-15 04:45:41,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:45:54,208 WARN L228 SmtUtils]: Spent 12.35s on a formula simplification that was a NOOP. DAG size: 241 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-02-15 04:46:06,649 WARN L228 SmtUtils]: Spent 6.38s on a formula simplification that was a NOOP. DAG size: 166 (called from [L 269] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-02-15 04:46:13,405 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:46:13,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:46:13,421 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:46:13,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:46:13,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:46:13,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:46:13,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:46:13,618 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:46:13,618 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [43323947] [2022-02-15 04:46:13,618 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [43323947] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:46:13,618 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:46:13,618 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 04:46:13,618 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568092595] [2022-02-15 04:46:13,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:46:13,619 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 04:46:13,619 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:46:13,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 04:46:13,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 04:46:13,620 INFO L87 Difference]: Start difference. First operand 1941 states and 2851 transitions. Second operand has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:46:15,629 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 04:46:16,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:46:16,310 INFO L93 Difference]: Finished difference Result 4710 states and 6890 transitions. [2022-02-15 04:46:16,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 04:46:16,310 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 188 [2022-02-15 04:46:16,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:46:16,318 INFO L225 Difference]: With dead ends: 4710 [2022-02-15 04:46:16,319 INFO L226 Difference]: Without dead ends: 2785 [2022-02-15 04:46:16,321 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 04:46:16,321 INFO L933 BasicCegarLoop]: 101 mSDtfsCounter, 106 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 387 mSolverCounterSat, 43 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 288 SdHoareTripleChecker+Invalid, 431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 387 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-15 04:46:16,321 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [106 Valid, 288 Invalid, 431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 387 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-15 04:46:16,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2785 states. [2022-02-15 04:46:16,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2785 to 2161. [2022-02-15 04:46:16,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2161 states, 2156 states have (on average 1.465213358070501) internal successors, (3159), 2156 states have internal predecessors, (3159), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:46:16,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2161 states to 2161 states and 3163 transitions. [2022-02-15 04:46:16,478 INFO L78 Accepts]: Start accepts. Automaton has 2161 states and 3163 transitions. Word has length 188 [2022-02-15 04:46:16,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:46:16,478 INFO L470 AbstractCegarLoop]: Abstraction has 2161 states and 3163 transitions. [2022-02-15 04:46:16,478 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:46:16,479 INFO L276 IsEmpty]: Start isEmpty. Operand 2161 states and 3163 transitions. [2022-02-15 04:46:16,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-02-15 04:46:16,482 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:46:16,482 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 5, 5, 4, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:46:16,482 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-02-15 04:46:16,482 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:46:16,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:46:16,483 INFO L85 PathProgramCache]: Analyzing trace with hash 1954262571, now seen corresponding path program 1 times [2022-02-15 04:46:16,483 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:46:16,483 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [43673888] [2022-02-15 04:46:16,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:46:33,251 WARN L228 SmtUtils]: Spent 16.30s on a formula simplification that was a NOOP. DAG size: 241 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-02-15 04:46:46,549 WARN L228 SmtUtils]: Spent 6.04s on a formula simplification that was a NOOP. DAG size: 166 (called from [L 269] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-02-15 04:46:53,288 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:46:53,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:46:53,303 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:46:53,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:46:53,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:46:53,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:46:53,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:46:53,542 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:46:53,542 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [43673888] [2022-02-15 04:46:53,542 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [43673888] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:46:53,542 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:46:53,542 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 04:46:53,542 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736464146] [2022-02-15 04:46:53,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:46:53,545 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 04:46:53,545 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:46:53,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 04:46:53,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 04:46:53,545 INFO L87 Difference]: Start difference. First operand 2161 states and 3163 transitions. Second operand has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:46:55,559 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 04:46:56,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:46:56,225 INFO L93 Difference]: Finished difference Result 4904 states and 7172 transitions. [2022-02-15 04:46:56,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 04:46:56,225 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 1 states have call successors, (3), 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 189 [2022-02-15 04:46:56,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:46:56,230 INFO L225 Difference]: With dead ends: 4904 [2022-02-15 04:46:56,230 INFO L226 Difference]: Without dead ends: 2759 [2022-02-15 04:46:56,233 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 04:46:56,234 INFO L933 BasicCegarLoop]: 226 mSDtfsCounter, 76 mSDsluCounter, 318 mSDsCounter, 0 mSdLazyCounter, 505 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 544 SdHoareTripleChecker+Invalid, 513 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 505 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-15 04:46:56,234 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [76 Valid, 544 Invalid, 513 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 505 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-15 04:46:56,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2759 states. [2022-02-15 04:46:56,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2759 to 2353. [2022-02-15 04:46:56,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2353 states, 2348 states have (on average 1.4646507666098807) internal successors, (3439), 2348 states have internal predecessors, (3439), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:46:56,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2353 states to 2353 states and 3443 transitions. [2022-02-15 04:46:56,396 INFO L78 Accepts]: Start accepts. Automaton has 2353 states and 3443 transitions. Word has length 189 [2022-02-15 04:46:56,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:46:56,396 INFO L470 AbstractCegarLoop]: Abstraction has 2353 states and 3443 transitions. [2022-02-15 04:46:56,396 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:46:56,396 INFO L276 IsEmpty]: Start isEmpty. Operand 2353 states and 3443 transitions. [2022-02-15 04:46:56,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-02-15 04:46:56,400 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:46:56,400 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 5, 5, 4, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:46:56,400 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-02-15 04:46:56,400 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:46:56,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:46:56,400 INFO L85 PathProgramCache]: Analyzing trace with hash -412432023, now seen corresponding path program 1 times [2022-02-15 04:46:56,400 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:46:56,400 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [778466430] [2022-02-15 04:46:56,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:47:14,919 WARN L228 SmtUtils]: Spent 18.16s on a formula simplification that was a NOOP. DAG size: 241 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-02-15 04:47:31,087 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:47:31,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:47:31,101 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:47:31,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:47:31,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:47:31,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:47:31,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:47:31,317 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:47:31,317 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [778466430] [2022-02-15 04:47:31,317 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [778466430] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:47:31,317 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:47:31,317 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 04:47:31,317 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383986433] [2022-02-15 04:47:31,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:47:31,318 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 04:47:31,318 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:47:31,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 04:47:31,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 04:47:31,318 INFO L87 Difference]: Start difference. First operand 2353 states and 3443 transitions. Second operand has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:47:33,336 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 04:47:34,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:47:34,060 INFO L93 Difference]: Finished difference Result 5274 states and 7684 transitions. [2022-02-15 04:47:34,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 04:47:34,060 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 1 states have call successors, (3), 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 189 [2022-02-15 04:47:34,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:47:34,065 INFO L225 Difference]: With dead ends: 5274 [2022-02-15 04:47:34,066 INFO L226 Difference]: Without dead ends: 2937 [2022-02-15 04:47:34,069 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 04:47:34,070 INFO L933 BasicCegarLoop]: 106 mSDtfsCounter, 105 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 391 mSolverCounterSat, 44 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 298 SdHoareTripleChecker+Invalid, 436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 391 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-02-15 04:47:34,070 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [105 Valid, 298 Invalid, 436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 391 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-02-15 04:47:34,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2937 states. [2022-02-15 04:47:34,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2937 to 2161. [2022-02-15 04:47:34,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2161 states, 2156 states have (on average 1.452226345083488) internal successors, (3131), 2156 states have internal predecessors, (3131), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:47:34,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2161 states to 2161 states and 3135 transitions. [2022-02-15 04:47:34,234 INFO L78 Accepts]: Start accepts. Automaton has 2161 states and 3135 transitions. Word has length 189 [2022-02-15 04:47:34,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:47:34,234 INFO L470 AbstractCegarLoop]: Abstraction has 2161 states and 3135 transitions. [2022-02-15 04:47:34,234 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:47:34,234 INFO L276 IsEmpty]: Start isEmpty. Operand 2161 states and 3135 transitions. [2022-02-15 04:47:34,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2022-02-15 04:47:34,237 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:47:34,237 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 5, 5, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:47:34,237 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-02-15 04:47:34,238 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:47:34,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:47:34,239 INFO L85 PathProgramCache]: Analyzing trace with hash -1003216029, now seen corresponding path program 1 times [2022-02-15 04:47:34,239 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:47:34,239 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [186053022] [2022-02-15 04:47:34,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:47:34,285 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:47:34,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:47:34,298 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:47:34,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:47:34,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:47:34,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:47:34,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:47:34,510 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:47:34,510 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [186053022] [2022-02-15 04:47:34,510 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [186053022] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:47:34,510 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:47:34,510 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 04:47:34,510 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103241184] [2022-02-15 04:47:34,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:47:34,510 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 04:47:34,511 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:47:34,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 04:47:34,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 04:47:34,511 INFO L87 Difference]: Start difference. First operand 2161 states and 3135 transitions. Second operand has 5 states, 5 states have (on average 25.6) internal successors, (128), 4 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:47:36,521 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 04:47:37,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:47:37,275 INFO L93 Difference]: Finished difference Result 5170 states and 7458 transitions. [2022-02-15 04:47:37,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 04:47:37,276 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.6) internal successors, (128), 4 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 204 [2022-02-15 04:47:37,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:47:37,281 INFO L225 Difference]: With dead ends: 5170 [2022-02-15 04:47:37,281 INFO L226 Difference]: Without dead ends: 3025 [2022-02-15 04:47:37,285 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 04:47:37,285 INFO L933 BasicCegarLoop]: 107 mSDtfsCounter, 91 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 397 mSolverCounterSat, 38 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 300 SdHoareTripleChecker+Invalid, 436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 397 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-15 04:47:37,285 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [91 Valid, 300 Invalid, 436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 397 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-15 04:47:37,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3025 states. [2022-02-15 04:47:37,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3025 to 2551. [2022-02-15 04:47:37,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2551 states, 2546 states have (on average 1.4654359780047133) internal successors, (3731), 2546 states have internal predecessors, (3731), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:47:37,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2551 states to 2551 states and 3735 transitions. [2022-02-15 04:47:37,491 INFO L78 Accepts]: Start accepts. Automaton has 2551 states and 3735 transitions. Word has length 204 [2022-02-15 04:47:37,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:47:37,491 INFO L470 AbstractCegarLoop]: Abstraction has 2551 states and 3735 transitions. [2022-02-15 04:47:37,491 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.6) internal successors, (128), 4 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:47:37,491 INFO L276 IsEmpty]: Start isEmpty. Operand 2551 states and 3735 transitions. [2022-02-15 04:47:37,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2022-02-15 04:47:37,496 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:47:37,496 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 5, 5, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:47:37,496 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-02-15 04:47:37,496 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:47:37,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:47:37,496 INFO L85 PathProgramCache]: Analyzing trace with hash -1119072511, now seen corresponding path program 1 times [2022-02-15 04:47:37,496 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:47:37,497 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [772076] [2022-02-15 04:47:37,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:47:37,543 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:47:37,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:47:37,557 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:47:37,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:47:37,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:47:37,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:47:37,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:47:37,752 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:47:37,752 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [772076] [2022-02-15 04:47:37,752 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [772076] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:47:37,752 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:47:37,752 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 04:47:37,752 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235217728] [2022-02-15 04:47:37,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:47:37,752 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 04:47:37,752 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:47:37,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 04:47:37,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 04:47:37,753 INFO L87 Difference]: Start difference. First operand 2551 states and 3735 transitions. Second operand has 5 states, 5 states have (on average 25.6) internal successors, (128), 4 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:47:39,761 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 04:47:40,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:47:40,413 INFO L93 Difference]: Finished difference Result 5460 states and 7956 transitions. [2022-02-15 04:47:40,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 04:47:40,413 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.6) internal successors, (128), 4 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 204 [2022-02-15 04:47:40,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:47:40,429 INFO L225 Difference]: With dead ends: 5460 [2022-02-15 04:47:40,429 INFO L226 Difference]: Without dead ends: 2925 [2022-02-15 04:47:40,434 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 04:47:40,434 INFO L933 BasicCegarLoop]: 204 mSDtfsCounter, 34 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 400 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 500 SdHoareTripleChecker+Invalid, 406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 400 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-15 04:47:40,435 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 500 Invalid, 406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 400 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-15 04:47:40,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2925 states. [2022-02-15 04:47:40,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2925 to 2783. [2022-02-15 04:47:40,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2783 states, 2778 states have (on average 1.461123110151188) internal successors, (4059), 2778 states have internal predecessors, (4059), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:47:40,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2783 states to 2783 states and 4063 transitions. [2022-02-15 04:47:40,653 INFO L78 Accepts]: Start accepts. Automaton has 2783 states and 4063 transitions. Word has length 204 [2022-02-15 04:47:40,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:47:40,654 INFO L470 AbstractCegarLoop]: Abstraction has 2783 states and 4063 transitions. [2022-02-15 04:47:40,654 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.6) internal successors, (128), 4 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:47:40,654 INFO L276 IsEmpty]: Start isEmpty. Operand 2783 states and 4063 transitions. [2022-02-15 04:47:40,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2022-02-15 04:47:40,658 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:47:40,658 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 5, 5, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:47:40,658 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-02-15 04:47:40,658 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:47:40,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:47:40,659 INFO L85 PathProgramCache]: Analyzing trace with hash 842502147, now seen corresponding path program 1 times [2022-02-15 04:47:40,659 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:47:40,659 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1758094660] [2022-02-15 04:47:40,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:47:40,705 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:47:40,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:47:40,719 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:47:40,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:47:40,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:47:40,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:47:40,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:47:40,950 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:47:40,950 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1758094660] [2022-02-15 04:47:40,951 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1758094660] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:47:40,951 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:47:40,951 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 04:47:40,951 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538118747] [2022-02-15 04:47:40,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:47:40,951 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 04:47:40,951 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:47:40,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 04:47:40,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 04:47:40,952 INFO L87 Difference]: Start difference. First operand 2783 states and 4063 transitions. Second operand has 5 states, 5 states have (on average 25.6) internal successors, (128), 4 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:47:42,971 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 04:47:43,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:47:43,783 INFO L93 Difference]: Finished difference Result 6074 states and 8841 transitions. [2022-02-15 04:47:43,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 04:47:43,784 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.6) internal successors, (128), 4 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 204 [2022-02-15 04:47:43,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:47:43,819 INFO L225 Difference]: With dead ends: 6074 [2022-02-15 04:47:43,819 INFO L226 Difference]: Without dead ends: 3307 [2022-02-15 04:47:43,826 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 04:47:43,826 INFO L933 BasicCegarLoop]: 210 mSDtfsCounter, 40 mSDsluCounter, 302 mSDsCounter, 0 mSdLazyCounter, 427 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 512 SdHoareTripleChecker+Invalid, 434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 427 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-15 04:47:43,826 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [40 Valid, 512 Invalid, 434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 427 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-15 04:47:43,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3307 states. [2022-02-15 04:47:44,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3307 to 3103. [2022-02-15 04:47:44,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3103 states, 3098 states have (on average 1.4651387992253067) internal successors, (4539), 3098 states have internal predecessors, (4539), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:47:44,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3103 states to 3103 states and 4543 transitions. [2022-02-15 04:47:44,474 INFO L78 Accepts]: Start accepts. Automaton has 3103 states and 4543 transitions. Word has length 204 [2022-02-15 04:47:44,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:47:44,475 INFO L470 AbstractCegarLoop]: Abstraction has 3103 states and 4543 transitions. [2022-02-15 04:47:44,475 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.6) internal successors, (128), 4 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:47:44,475 INFO L276 IsEmpty]: Start isEmpty. Operand 3103 states and 4543 transitions. [2022-02-15 04:47:44,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2022-02-15 04:47:44,480 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:47:44,481 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:47:44,481 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-02-15 04:47:44,481 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:47:44,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:47:44,481 INFO L85 PathProgramCache]: Analyzing trace with hash -1434937677, now seen corresponding path program 1 times [2022-02-15 04:47:44,481 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:47:44,481 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1285101051] [2022-02-15 04:47:44,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:47:58,520 WARN L228 SmtUtils]: Spent 13.64s on a formula simplification that was a NOOP. DAG size: 241 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-02-15 04:48:11,323 WARN L228 SmtUtils]: Spent 7.00s on a formula simplification that was a NOOP. DAG size: 166 (called from [L 269] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-02-15 04:48:18,530 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:48:18,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:48:18,567 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:48:18,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:48:18,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:48:18,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:48:18,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:48:18,742 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:48:18,742 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1285101051] [2022-02-15 04:48:18,742 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1285101051] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:48:18,742 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:48:18,743 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 04:48:18,743 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842907804] [2022-02-15 04:48:18,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:48:18,743 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 04:48:18,743 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:48:18,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 04:48:18,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 04:48:18,743 INFO L87 Difference]: Start difference. First operand 3103 states and 4543 transitions. Second operand has 5 states, 5 states have (on average 22.8) internal successors, (114), 4 states have internal predecessors, (114), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:48:20,752 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 04:48:21,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:48:21,482 INFO L93 Difference]: Finished difference Result 6944 states and 10144 transitions. [2022-02-15 04:48:21,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 04:48:21,482 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.8) internal successors, (114), 4 states have internal predecessors, (114), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 206 [2022-02-15 04:48:21,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:48:21,489 INFO L225 Difference]: With dead ends: 6944 [2022-02-15 04:48:21,489 INFO L226 Difference]: Without dead ends: 3857 [2022-02-15 04:48:21,495 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 04:48:21,495 INFO L933 BasicCegarLoop]: 105 mSDtfsCounter, 107 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 392 mSolverCounterSat, 42 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 392 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-15 04:48:21,495 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [107 Valid, 296 Invalid, 435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 392 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-15 04:48:21,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3857 states. [2022-02-15 04:48:21,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3857 to 3103. [2022-02-15 04:48:21,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3103 states, 3098 states have (on average 1.448030987734022) internal successors, (4486), 3098 states have internal predecessors, (4486), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:48:21,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3103 states to 3103 states and 4490 transitions. [2022-02-15 04:48:21,853 INFO L78 Accepts]: Start accepts. Automaton has 3103 states and 4490 transitions. Word has length 206 [2022-02-15 04:48:21,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:48:21,854 INFO L470 AbstractCegarLoop]: Abstraction has 3103 states and 4490 transitions. [2022-02-15 04:48:21,854 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.8) internal successors, (114), 4 states have internal predecessors, (114), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:48:21,854 INFO L276 IsEmpty]: Start isEmpty. Operand 3103 states and 4490 transitions. [2022-02-15 04:48:21,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2022-02-15 04:48:21,860 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:48:21,860 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 7, 7, 6, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:48:21,860 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-02-15 04:48:21,860 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:48:21,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:48:21,860 INFO L85 PathProgramCache]: Analyzing trace with hash -1208886526, now seen corresponding path program 1 times [2022-02-15 04:48:21,860 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:48:21,861 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1633678385] [2022-02-15 04:48:21,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:48:37,229 WARN L228 SmtUtils]: Spent 14.93s on a formula simplification that was a NOOP. DAG size: 241 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-02-15 04:48:55,192 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:48:55,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:48:55,210 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:48:55,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:48:55,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:48:55,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:48:55,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:48:55,371 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:48:55,371 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1633678385] [2022-02-15 04:48:55,371 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1633678385] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:48:55,371 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:48:55,372 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 04:48:55,372 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629225353] [2022-02-15 04:48:55,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:48:55,372 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 04:48:55,372 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:48:55,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 04:48:55,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 04:48:55,372 INFO L87 Difference]: Start difference. First operand 3103 states and 4490 transitions. Second operand has 5 states, 5 states have (on average 23.0) internal successors, (115), 4 states have internal predecessors, (115), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:48:57,387 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 04:48:58,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:48:58,323 INFO L93 Difference]: Finished difference Result 6740 states and 9728 transitions. [2022-02-15 04:48:58,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 04:48:58,323 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.0) internal successors, (115), 4 states have internal predecessors, (115), 1 states have call successors, (3), 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 207 [2022-02-15 04:48:58,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:48:58,329 INFO L225 Difference]: With dead ends: 6740 [2022-02-15 04:48:58,330 INFO L226 Difference]: Without dead ends: 3653 [2022-02-15 04:48:58,335 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 04:48:58,335 INFO L933 BasicCegarLoop]: 106 mSDtfsCounter, 106 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 391 mSolverCounterSat, 44 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 298 SdHoareTripleChecker+Invalid, 436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 391 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-02-15 04:48:58,335 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [106 Valid, 298 Invalid, 436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 391 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-02-15 04:48:58,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3653 states. [2022-02-15 04:48:58,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3653 to 3103. [2022-02-15 04:48:58,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3103 states, 3098 states have (on average 1.4293092317624274) internal successors, (4428), 3098 states have internal predecessors, (4428), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:48:58,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3103 states to 3103 states and 4432 transitions. [2022-02-15 04:48:58,658 INFO L78 Accepts]: Start accepts. Automaton has 3103 states and 4432 transitions. Word has length 207 [2022-02-15 04:48:58,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:48:58,658 INFO L470 AbstractCegarLoop]: Abstraction has 3103 states and 4432 transitions. [2022-02-15 04:48:58,658 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.0) internal successors, (115), 4 states have internal predecessors, (115), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:48:58,658 INFO L276 IsEmpty]: Start isEmpty. Operand 3103 states and 4432 transitions. [2022-02-15 04:48:58,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2022-02-15 04:48:58,664 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:48:58,664 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 6, 6, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:48:58,664 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-02-15 04:48:58,664 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:48:58,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:48:58,664 INFO L85 PathProgramCache]: Analyzing trace with hash 552798126, now seen corresponding path program 1 times [2022-02-15 04:48:58,665 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:48:58,665 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1622213855] [2022-02-15 04:48:58,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:49:10,091 WARN L228 SmtUtils]: Spent 11.42s on a formula simplification that was a NOOP. DAG size: 241 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-02-15 04:49:35,862 WARN L228 SmtUtils]: Spent 5.07s on a formula simplification. DAG size of input: 280 DAG size of output: 196 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-02-15 04:49:48,965 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:49:48,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:49:49,002 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:49:49,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:49:49,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:49:49,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:49:49,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:49:49,288 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:49:49,288 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1622213855] [2022-02-15 04:49:49,288 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1622213855] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:49:49,288 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:49:49,288 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 04:49:49,288 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537332292] [2022-02-15 04:49:49,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:49:49,289 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 04:49:49,289 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:49:49,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 04:49:49,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 04:49:49,290 INFO L87 Difference]: Start difference. First operand 3103 states and 4432 transitions. Second operand has 5 states, 5 states have (on average 25.6) internal successors, (128), 4 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:49:51,300 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 04:49:52,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:49:52,020 INFO L93 Difference]: Finished difference Result 6249 states and 8911 transitions. [2022-02-15 04:49:52,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 04:49:52,020 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.6) internal successors, (128), 4 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 222 [2022-02-15 04:49:52,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:49:52,025 INFO L225 Difference]: With dead ends: 6249 [2022-02-15 04:49:52,025 INFO L226 Difference]: Without dead ends: 3162 [2022-02-15 04:49:52,030 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 [2022-02-15 04:49:52,031 INFO L933 BasicCegarLoop]: 190 mSDtfsCounter, 26 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 341 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 473 SdHoareTripleChecker+Invalid, 347 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 341 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-15 04:49:52,031 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [26 Valid, 473 Invalid, 347 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 341 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-15 04:49:52,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3162 states. [2022-02-15 04:49:52,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3162 to 3103. [2022-02-15 04:49:52,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3103 states, 3098 states have (on average 1.4276952872821176) internal successors, (4423), 3098 states have internal predecessors, (4423), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:49:52,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3103 states to 3103 states and 4427 transitions. [2022-02-15 04:49:52,310 INFO L78 Accepts]: Start accepts. Automaton has 3103 states and 4427 transitions. Word has length 222 [2022-02-15 04:49:52,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:49:52,310 INFO L470 AbstractCegarLoop]: Abstraction has 3103 states and 4427 transitions. [2022-02-15 04:49:52,310 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.6) internal successors, (128), 4 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:49:52,310 INFO L276 IsEmpty]: Start isEmpty. Operand 3103 states and 4427 transitions. [2022-02-15 04:49:52,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2022-02-15 04:49:52,314 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:49:52,314 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:49:52,315 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-02-15 04:49:52,315 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:49:52,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:49:52,315 INFO L85 PathProgramCache]: Analyzing trace with hash -1085024224, now seen corresponding path program 1 times [2022-02-15 04:49:52,315 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:49:52,315 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2115512291] [2022-02-15 04:49:52,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:50:05,966 WARN L228 SmtUtils]: Spent 13.31s on a formula simplification that was a NOOP. DAG size: 241 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-02-15 04:50:23,365 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:50:23,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:50:23,384 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:50:23,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:50:23,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:50:23,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:50:23,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:50:23,570 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:50:23,570 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2115512291] [2022-02-15 04:50:23,571 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [2115512291] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:50:23,571 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:50:23,571 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 04:50:23,571 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683575190] [2022-02-15 04:50:23,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:50:23,571 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 04:50:23,571 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:50:23,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 04:50:23,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 04:50:23,572 INFO L87 Difference]: Start difference. First operand 3103 states and 4427 transitions. Second operand has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:50:25,584 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 04:50:26,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:50:26,382 INFO L93 Difference]: Finished difference Result 6740 states and 9602 transitions. [2022-02-15 04:50:26,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 04:50:26,383 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 224 [2022-02-15 04:50:26,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:50:26,388 INFO L225 Difference]: With dead ends: 6740 [2022-02-15 04:50:26,389 INFO L226 Difference]: Without dead ends: 3653 [2022-02-15 04:50:26,393 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 04:50:26,394 INFO L933 BasicCegarLoop]: 106 mSDtfsCounter, 106 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 392 mSolverCounterSat, 42 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 300 SdHoareTripleChecker+Invalid, 435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 392 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-15 04:50:26,394 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [106 Valid, 300 Invalid, 435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 392 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-15 04:50:26,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3653 states. [2022-02-15 04:50:26,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3653 to 3103. [2022-02-15 04:50:26,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3103 states, 3098 states have (on average 1.4073595868302131) internal successors, (4360), 3098 states have internal predecessors, (4360), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:50:26,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3103 states to 3103 states and 4364 transitions. [2022-02-15 04:50:26,758 INFO L78 Accepts]: Start accepts. Automaton has 3103 states and 4364 transitions. Word has length 224 [2022-02-15 04:50:26,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:50:26,758 INFO L470 AbstractCegarLoop]: Abstraction has 3103 states and 4364 transitions. [2022-02-15 04:50:26,758 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:50:26,758 INFO L276 IsEmpty]: Start isEmpty. Operand 3103 states and 4364 transitions. [2022-02-15 04:50:26,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2022-02-15 04:50:26,762 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:50:26,762 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 8, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:50:26,762 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-02-15 04:50:26,763 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:50:26,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:50:26,763 INFO L85 PathProgramCache]: Analyzing trace with hash -496155121, now seen corresponding path program 1 times [2022-02-15 04:50:26,763 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:50:26,763 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1505880467] [2022-02-15 04:50:26,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:50:42,356 WARN L228 SmtUtils]: Spent 14.72s on a formula simplification that was a NOOP. DAG size: 241 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-02-15 04:50:53,718 WARN L228 SmtUtils]: Spent 5.78s on a formula simplification that was a NOOP. DAG size: 166 (called from [L 269] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-02-15 04:51:02,033 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:51:02,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:51:02,053 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:51:02,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:51:02,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:51:02,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:51:02,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:51:02,273 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:51:02,273 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1505880467] [2022-02-15 04:51:02,273 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1505880467] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:51:02,273 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:51:02,273 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 04:51:02,273 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088570087] [2022-02-15 04:51:02,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:51:02,274 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 04:51:02,274 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:51:02,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 04:51:02,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 04:51:02,274 INFO L87 Difference]: Start difference. First operand 3103 states and 4364 transitions. Second operand has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:51:04,283 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 04:51:05,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:51:05,039 INFO L93 Difference]: Finished difference Result 6262 states and 8792 transitions. [2022-02-15 04:51:05,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 04:51:05,040 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 1 states have call successors, (3), 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 225 [2022-02-15 04:51:05,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:51:05,044 INFO L225 Difference]: With dead ends: 6262 [2022-02-15 04:51:05,044 INFO L226 Difference]: Without dead ends: 3175 [2022-02-15 04:51:05,049 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 04:51:05,049 INFO L933 BasicCegarLoop]: 193 mSDtfsCounter, 29 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 368 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 478 SdHoareTripleChecker+Invalid, 374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 368 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-02-15 04:51:05,056 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [29 Valid, 478 Invalid, 374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 368 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-02-15 04:51:05,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3175 states. [2022-02-15 04:51:05,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3175 to 3103. [2022-02-15 04:51:05,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3103 states, 3098 states have (on average 1.4047772756617172) internal successors, (4352), 3098 states have internal predecessors, (4352), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:51:05,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3103 states to 3103 states and 4356 transitions. [2022-02-15 04:51:05,500 INFO L78 Accepts]: Start accepts. Automaton has 3103 states and 4356 transitions. Word has length 225 [2022-02-15 04:51:05,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:51:05,500 INFO L470 AbstractCegarLoop]: Abstraction has 3103 states and 4356 transitions. [2022-02-15 04:51:05,500 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:51:05,500 INFO L276 IsEmpty]: Start isEmpty. Operand 3103 states and 4356 transitions. [2022-02-15 04:51:05,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2022-02-15 04:51:05,505 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:51:05,505 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 8, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:51:05,505 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-02-15 04:51:05,505 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:51:05,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:51:05,505 INFO L85 PathProgramCache]: Analyzing trace with hash 1070602829, now seen corresponding path program 1 times [2022-02-15 04:51:05,506 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:51:05,506 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [983765979] [2022-02-15 04:51:05,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:51:21,249 WARN L228 SmtUtils]: Spent 14.77s on a formula simplification that was a NOOP. DAG size: 241 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition)