/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationJordan_32.epf -i ../../../trunk/examples/svcomp/openssl-simplified/s3_srvr_3.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-d966a43 [2022-01-31 22:11:06,506 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-31 22:11:06,507 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-31 22:11:06,544 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-31 22:11:06,544 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-31 22:11:06,547 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-31 22:11:06,550 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-31 22:11:06,563 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-31 22:11:06,565 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-31 22:11:06,571 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-31 22:11:06,571 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-31 22:11:06,572 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-31 22:11:06,572 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-31 22:11:06,573 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-31 22:11:06,574 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-31 22:11:06,574 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-31 22:11:06,575 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-31 22:11:06,575 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-31 22:11:06,577 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-31 22:11:06,578 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-31 22:11:06,579 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-31 22:11:06,581 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-31 22:11:06,583 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-31 22:11:06,584 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-31 22:11:06,595 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-31 22:11:06,595 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-31 22:11:06,595 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-31 22:11:06,597 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-31 22:11:06,597 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-31 22:11:06,598 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-31 22:11:06,598 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-31 22:11:06,599 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-31 22:11:06,600 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-31 22:11:06,601 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-31 22:11:06,602 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-31 22:11:06,602 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-31 22:11:06,603 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-31 22:11:06,603 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-31 22:11:06,603 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-31 22:11:06,604 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-31 22:11:06,604 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-31 22:11:06,607 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationJordan_32.epf [2022-01-31 22:11:06,617 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-31 22:11:06,617 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-31 22:11:06,619 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-31 22:11:06,619 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-31 22:11:06,619 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-31 22:11:06,619 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-31 22:11:06,620 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-31 22:11:06,620 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-31 22:11:06,620 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-31 22:11:06,620 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-31 22:11:06,621 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-31 22:11:06,621 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-31 22:11:06,621 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-31 22:11:06,621 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-31 22:11:06,621 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-31 22:11:06,621 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-31 22:11:06,622 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-31 22:11:06,622 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-31 22:11:06,622 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-31 22:11:06,622 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-31 22:11:06,622 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2022-01-31 22:11:06,622 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-31 22:11:06,622 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=JORDAN [2022-01-31 22:11:06,623 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-31 22:11:06,856 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-31 22:11:06,883 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-31 22:11:06,885 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-31 22:11:06,886 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-31 22:11:06,887 INFO L275 PluginConnector]: CDTParser initialized [2022-01-31 22:11:06,888 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl-simplified/s3_srvr_3.cil.c [2022-01-31 22:11:06,944 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7e72d3874/c7dbf9a5dde14ec1b4caf896ffd5480d/FLAG25e8bcd76 [2022-01-31 22:11:07,357 INFO L306 CDTParser]: Found 1 translation units. [2022-01-31 22:11:07,358 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl-simplified/s3_srvr_3.cil.c [2022-01-31 22:11:07,374 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7e72d3874/c7dbf9a5dde14ec1b4caf896ffd5480d/FLAG25e8bcd76 [2022-01-31 22:11:07,384 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7e72d3874/c7dbf9a5dde14ec1b4caf896ffd5480d [2022-01-31 22:11:07,386 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-31 22:11:07,387 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-01-31 22:11:07,393 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-31 22:11:07,393 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-31 22:11:07,395 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-31 22:11:07,396 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 10:11:07" (1/1) ... [2022-01-31 22:11:07,397 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9f56df6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:11:07, skipping insertion in model container [2022-01-31 22:11:07,397 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 10:11:07" (1/1) ... [2022-01-31 22:11:07,401 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-31 22:11:07,453 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-31 22:11:07,657 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-simplified/s3_srvr_3.cil.c[42783,42796] [2022-01-31 22:11:07,667 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-31 22:11:07,674 INFO L203 MainTranslator]: Completed pre-run [2022-01-31 22:11:07,747 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-simplified/s3_srvr_3.cil.c[42783,42796] [2022-01-31 22:11:07,750 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-31 22:11:07,772 INFO L208 MainTranslator]: Completed translation [2022-01-31 22:11:07,772 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:11:07 WrapperNode [2022-01-31 22:11:07,772 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-31 22:11:07,773 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-31 22:11:07,773 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-31 22:11:07,774 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-31 22:11:07,783 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:11:07" (1/1) ... [2022-01-31 22:11:07,783 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:11:07" (1/1) ... [2022-01-31 22:11:07,801 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:11:07" (1/1) ... [2022-01-31 22:11:07,802 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:11:07" (1/1) ... [2022-01-31 22:11:07,811 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:11:07" (1/1) ... [2022-01-31 22:11:07,839 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:11:07" (1/1) ... [2022-01-31 22:11:07,841 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:11:07" (1/1) ... [2022-01-31 22:11:07,844 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-31 22:11:07,845 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-31 22:11:07,845 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-31 22:11:07,845 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-31 22:11:07,855 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:11:07" (1/1) ... [2022-01-31 22:11:07,866 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-31 22:11:07,874 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 22:11:07,888 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-31 22:11:07,927 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-31 22:11:07,940 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-01-31 22:11:07,940 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-31 22:11:07,941 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-01-31 22:11:07,941 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-01-31 22:11:07,941 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-01-31 22:11:07,941 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-01-31 22:11:07,942 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-01-31 22:11:07,942 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-01-31 22:11:07,942 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-31 22:11:07,942 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-01-31 22:11:07,942 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-01-31 22:11:07,943 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-01-31 22:11:07,943 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-01-31 22:11:07,943 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-01-31 22:11:07,944 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-01-31 22:11:07,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-31 22:11:07,945 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-31 22:11:07,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-31 22:11:07,945 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-31 22:11:07,946 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-31 22:11:08,083 INFO L234 CfgBuilder]: Building ICFG [2022-01-31 22:11:08,085 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-31 22:11:08,167 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-01-31 22:11:08,483 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##90: assume false; [2022-01-31 22:11:08,483 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##91: assume !false; [2022-01-31 22:11:08,489 INFO L275 CfgBuilder]: Performing block encoding [2022-01-31 22:11:08,495 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-31 22:11:08,495 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-31 22:11:08,497 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 10:11:08 BoogieIcfgContainer [2022-01-31 22:11:08,497 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-31 22:11:08,498 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-31 22:11:08,498 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-31 22:11:08,524 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-31 22:11:08,524 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.01 10:11:07" (1/3) ... [2022-01-31 22:11:08,525 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@637f8233 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 10:11:08, skipping insertion in model container [2022-01-31 22:11:08,525 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:11:07" (2/3) ... [2022-01-31 22:11:08,525 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@637f8233 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 10:11:08, skipping insertion in model container [2022-01-31 22:11:08,525 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 10:11:08" (3/3) ... [2022-01-31 22:11:08,526 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr_3.cil.c [2022-01-31 22:11:08,530 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-01-31 22:11:08,530 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-31 22:11:08,578 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-31 22:11:08,584 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=AcceleratedInterpolation, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=JORDAN [2022-01-31 22:11:08,585 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-31 22:11:08,600 INFO L276 IsEmpty]: Start isEmpty. Operand has 150 states, 142 states have (on average 1.7112676056338028) internal successors, (243), 143 states have internal predecessors, (243), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-01-31 22:11:08,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-01-31 22:11:08,609 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:11:08,610 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:11:08,610 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:11:08,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:11:08,622 INFO L85 PathProgramCache]: Analyzing trace with hash -1942859062, now seen corresponding path program 1 times [2022-01-31 22:11:08,632 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:11:08,632 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [814779657] [2022-01-31 22:11:08,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:11:08,644 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:11:08,680 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:11:08,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:11:08,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:11:08,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:11:08,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:11:08,943 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:11:08,943 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [814779657] [2022-01-31 22:11:08,944 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [814779657] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:11:08,945 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:11:08,945 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 22:11:08,946 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216844432] [2022-01-31 22:11:08,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:11:08,949 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 22:11:08,950 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:11:08,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 22:11:08,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 22:11:08,977 INFO L87 Difference]: Start difference. First operand has 150 states, 142 states have (on average 1.7112676056338028) internal successors, (243), 143 states have internal predecessors, (243), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 4 states, 4 states have (on average 11.5) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:11:09,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:11:09,415 INFO L93 Difference]: Finished difference Result 414 states and 701 transitions. [2022-01-31 22:11:09,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 22:11:09,418 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 50 [2022-01-31 22:11:09,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:11:09,434 INFO L225 Difference]: With dead ends: 414 [2022-01-31 22:11:09,435 INFO L226 Difference]: Without dead ends: 251 [2022-01-31 22:11:09,438 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-31 22:11:09,441 INFO L933 BasicCegarLoop]: 240 mSDtfsCounter, 634 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 236 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 636 SdHoareTripleChecker+Valid, 249 SdHoareTripleChecker+Invalid, 243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-31 22:11:09,442 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [636 Valid, 249 Invalid, 243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 236 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-31 22:11:09,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2022-01-31 22:11:09,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 251. [2022-01-31 22:11:09,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 251 states, 246 states have (on average 1.524390243902439) internal successors, (375), 246 states have internal predecessors, (375), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:11:09,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 379 transitions. [2022-01-31 22:11:09,502 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 379 transitions. Word has length 50 [2022-01-31 22:11:09,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:11:09,504 INFO L470 AbstractCegarLoop]: Abstraction has 251 states and 379 transitions. [2022-01-31 22:11:09,504 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:11:09,504 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 379 transitions. [2022-01-31 22:11:09,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-01-31 22:11:09,515 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:11:09,515 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:11:09,515 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-31 22:11:09,516 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:11:09,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:11:09,518 INFO L85 PathProgramCache]: Analyzing trace with hash -1924818871, now seen corresponding path program 1 times [2022-01-31 22:11:09,518 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:11:09,518 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2124577699] [2022-01-31 22:11:09,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:11:10,415 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 8 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=6, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:11:10,416 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2022-01-31 22:11:10,416 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:11:10,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:11:10,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:11:10,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:11:10,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:11:11,309 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:11:11,310 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2124577699] [2022-01-31 22:11:11,310 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [2124577699] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:11:11,310 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:11:11,310 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-01-31 22:11:11,310 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751712479] [2022-01-31 22:11:11,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:11:11,311 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-31 22:11:11,311 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:11:11,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-31 22:11:11,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=202, Unknown=0, NotChecked=0, Total=272 [2022-01-31 22:11:11,312 INFO L87 Difference]: Start difference. First operand 251 states and 379 transitions. Second operand has 17 states, 16 states have (on average 3.875) internal successors, (62), 15 states have internal predecessors, (62), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:11:12,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:11:12,257 INFO L93 Difference]: Finished difference Result 643 states and 987 transitions. [2022-01-31 22:11:12,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-31 22:11:12,258 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 3.875) internal successors, (62), 15 states have internal predecessors, (62), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 66 [2022-01-31 22:11:12,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:11:12,261 INFO L225 Difference]: With dead ends: 643 [2022-01-31 22:11:12,261 INFO L226 Difference]: Without dead ends: 382 [2022-01-31 22:11:12,263 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 11 SyntacticMatches, 6 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 182 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=219, Invalid=651, Unknown=0, NotChecked=0, Total=870 [2022-01-31 22:11:12,264 INFO L933 BasicCegarLoop]: 182 mSDtfsCounter, 824 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 864 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 824 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 1411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 864 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 477 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-31 22:11:12,265 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [824 Valid, 214 Invalid, 1411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 864 Invalid, 0 Unknown, 477 Unchecked, 0.6s Time] [2022-01-31 22:11:12,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states. [2022-01-31 22:11:12,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 326. [2022-01-31 22:11:12,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 326 states, 321 states have (on average 1.4485981308411215) internal successors, (465), 321 states have internal predecessors, (465), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:11:12,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 469 transitions. [2022-01-31 22:11:12,322 INFO L78 Accepts]: Start accepts. Automaton has 326 states and 469 transitions. Word has length 66 [2022-01-31 22:11:12,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:11:12,323 INFO L470 AbstractCegarLoop]: Abstraction has 326 states and 469 transitions. [2022-01-31 22:11:12,323 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 3.875) internal successors, (62), 15 states have internal predecessors, (62), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:11:12,323 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states and 469 transitions. [2022-01-31 22:11:12,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-01-31 22:11:12,325 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:11:12,325 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:11:12,325 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-31 22:11:12,326 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:11:12,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:11:12,326 INFO L85 PathProgramCache]: Analyzing trace with hash 79405527, now seen corresponding path program 1 times [2022-01-31 22:11:12,326 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:11:12,326 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1370084030] [2022-01-31 22:11:12,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:11:12,898 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 8 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=6, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:11:12,898 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2022-01-31 22:11:12,898 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:11:12,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:11:12,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:11:12,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:11:12,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:11:13,903 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:11:13,903 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1370084030] [2022-01-31 22:11:13,903 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1370084030] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:11:13,903 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:11:13,903 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-01-31 22:11:13,904 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400895889] [2022-01-31 22:11:13,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:11:13,904 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-01-31 22:11:13,904 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:11:13,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-01-31 22:11:13,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=292, Unknown=0, NotChecked=0, Total=380 [2022-01-31 22:11:13,905 INFO L87 Difference]: Start difference. First operand 326 states and 469 transitions. Second operand has 20 states, 19 states have (on average 3.473684210526316) internal successors, (66), 18 states have internal predecessors, (66), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:11:14,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:11:14,581 INFO L93 Difference]: Finished difference Result 528 states and 778 transitions. [2022-01-31 22:11:14,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-31 22:11:14,581 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 3.473684210526316) internal successors, (66), 18 states have internal predecessors, (66), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 70 [2022-01-31 22:11:14,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:11:14,586 INFO L225 Difference]: With dead ends: 528 [2022-01-31 22:11:14,586 INFO L226 Difference]: Without dead ends: 399 [2022-01-31 22:11:14,590 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 10 SyntacticMatches, 6 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 269 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=214, Invalid=908, Unknown=0, NotChecked=0, Total=1122 [2022-01-31 22:11:14,596 INFO L933 BasicCegarLoop]: 186 mSDtfsCounter, 215 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 638 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 215 SdHoareTripleChecker+Valid, 241 SdHoareTripleChecker+Invalid, 912 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 638 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 232 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-31 22:11:14,596 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [215 Valid, 241 Invalid, 912 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 638 Invalid, 0 Unknown, 232 Unchecked, 0.4s Time] [2022-01-31 22:11:14,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 399 states. [2022-01-31 22:11:14,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 399 to 384. [2022-01-31 22:11:14,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 384 states, 379 states have (on average 1.4142480211081794) internal successors, (536), 379 states have internal predecessors, (536), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:11:14,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 540 transitions. [2022-01-31 22:11:14,636 INFO L78 Accepts]: Start accepts. Automaton has 384 states and 540 transitions. Word has length 70 [2022-01-31 22:11:14,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:11:14,637 INFO L470 AbstractCegarLoop]: Abstraction has 384 states and 540 transitions. [2022-01-31 22:11:14,637 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 3.473684210526316) internal successors, (66), 18 states have internal predecessors, (66), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:11:14,637 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states and 540 transitions. [2022-01-31 22:11:14,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-01-31 22:11:14,638 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:11:14,639 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:11:14,639 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-31 22:11:14,639 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:11:14,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:11:14,639 INFO L85 PathProgramCache]: Analyzing trace with hash 1878331893, now seen corresponding path program 1 times [2022-01-31 22:11:14,640 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:11:14,640 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [626948107] [2022-01-31 22:11:14,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:11:15,211 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 8 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=6, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:11:15,211 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2022-01-31 22:11:15,211 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:11:15,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:11:15,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:11:15,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:11:15,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:11:16,095 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:11:16,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [626948107] [2022-01-31 22:11:16,095 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [626948107] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:11:16,095 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:11:16,095 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-01-31 22:11:16,095 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563513402] [2022-01-31 22:11:16,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:11:16,096 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-01-31 22:11:16,096 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:11:16,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-01-31 22:11:16,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=292, Unknown=0, NotChecked=0, Total=380 [2022-01-31 22:11:16,097 INFO L87 Difference]: Start difference. First operand 384 states and 540 transitions. Second operand has 20 states, 19 states have (on average 3.526315789473684) internal successors, (67), 18 states have internal predecessors, (67), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:11:17,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:11:17,212 INFO L93 Difference]: Finished difference Result 821 states and 1233 transitions. [2022-01-31 22:11:17,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-31 22:11:17,212 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 3.526315789473684) internal successors, (67), 18 states have internal predecessors, (67), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 71 [2022-01-31 22:11:17,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:11:17,216 INFO L225 Difference]: With dead ends: 821 [2022-01-31 22:11:17,216 INFO L226 Difference]: Without dead ends: 519 [2022-01-31 22:11:17,218 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 10 SyntacticMatches, 6 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 288 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=279, Invalid=981, Unknown=0, NotChecked=0, Total=1260 [2022-01-31 22:11:17,224 INFO L933 BasicCegarLoop]: 176 mSDtfsCounter, 814 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 1299 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 814 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 2177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 1299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 781 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-31 22:11:17,225 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [814 Valid, 223 Invalid, 2177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 1299 Invalid, 0 Unknown, 781 Unchecked, 0.7s Time] [2022-01-31 22:11:17,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 519 states. [2022-01-31 22:11:17,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 519 to 365. [2022-01-31 22:11:17,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 365 states, 360 states have (on average 1.4527777777777777) internal successors, (523), 360 states have internal predecessors, (523), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:11:17,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 527 transitions. [2022-01-31 22:11:17,258 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 527 transitions. Word has length 71 [2022-01-31 22:11:17,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:11:17,259 INFO L470 AbstractCegarLoop]: Abstraction has 365 states and 527 transitions. [2022-01-31 22:11:17,259 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 3.526315789473684) internal successors, (67), 18 states have internal predecessors, (67), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:11:17,259 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 527 transitions. [2022-01-31 22:11:17,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-01-31 22:11:17,261 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:11:17,261 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:11:17,261 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-31 22:11:17,262 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:11:17,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:11:17,262 INFO L85 PathProgramCache]: Analyzing trace with hash -504453063, now seen corresponding path program 1 times [2022-01-31 22:11:17,262 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:11:17,262 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1010429185] [2022-01-31 22:11:17,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:11:17,378 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:11:17,378 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2022-01-31 22:11:17,451 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:11:17,916 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 8 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=6, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:11:17,916 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:11:17,916 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:11:17,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:11:17,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:11:17,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:11:17,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:11:18,342 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:11:18,343 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1010429185] [2022-01-31 22:11:18,343 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1010429185] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:11:18,343 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:11:18,343 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-01-31 22:11:18,343 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625480632] [2022-01-31 22:11:18,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:11:18,344 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-01-31 22:11:18,344 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:11:18,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-01-31 22:11:18,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=341, Unknown=0, NotChecked=0, Total=420 [2022-01-31 22:11:18,345 INFO L87 Difference]: Start difference. First operand 365 states and 527 transitions. Second operand has 21 states, 20 states have (on average 4.15) internal successors, (83), 19 states have internal predecessors, (83), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:11:19,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:11:19,644 INFO L93 Difference]: Finished difference Result 662 states and 934 transitions. [2022-01-31 22:11:19,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-31 22:11:19,645 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 4.15) internal successors, (83), 19 states have internal predecessors, (83), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 87 [2022-01-31 22:11:19,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:11:19,650 INFO L225 Difference]: With dead ends: 662 [2022-01-31 22:11:19,650 INFO L226 Difference]: Without dead ends: 467 [2022-01-31 22:11:19,651 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 32 SyntacticMatches, 1 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 343 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=263, Invalid=1219, Unknown=0, NotChecked=0, Total=1482 [2022-01-31 22:11:19,652 INFO L933 BasicCegarLoop]: 194 mSDtfsCounter, 915 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 2214 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 915 SdHoareTripleChecker+Valid, 246 SdHoareTripleChecker+Invalid, 2277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 2214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-01-31 22:11:19,652 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [915 Valid, 246 Invalid, 2277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 2214 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-01-31 22:11:19,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 467 states. [2022-01-31 22:11:19,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 467 to 384. [2022-01-31 22:11:19,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 384 states, 379 states have (on average 1.4300791556728232) internal successors, (542), 379 states have internal predecessors, (542), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:11:19,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 546 transitions. [2022-01-31 22:11:19,685 INFO L78 Accepts]: Start accepts. Automaton has 384 states and 546 transitions. Word has length 87 [2022-01-31 22:11:19,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:11:19,686 INFO L470 AbstractCegarLoop]: Abstraction has 384 states and 546 transitions. [2022-01-31 22:11:19,686 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 4.15) internal successors, (83), 19 states have internal predecessors, (83), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:11:19,686 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states and 546 transitions. [2022-01-31 22:11:19,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-01-31 22:11:19,688 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:11:19,688 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:11:19,688 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-31 22:11:19,689 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:11:19,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:11:19,689 INFO L85 PathProgramCache]: Analyzing trace with hash -256306569, now seen corresponding path program 1 times [2022-01-31 22:11:19,689 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:11:19,689 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2005248184] [2022-01-31 22:11:19,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:11:19,766 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:11:19,766 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2022-01-31 22:11:20,200 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 8 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=6, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:11:20,268 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:11:20,268 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:11:20,269 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:11:20,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:11:20,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:11:20,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:11:20,338 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:11:21,084 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:11:21,085 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2005248184] [2022-01-31 22:11:21,085 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [2005248184] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:11:21,085 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:11:21,085 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-01-31 22:11:21,085 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970572482] [2022-01-31 22:11:21,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:11:21,086 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-01-31 22:11:21,086 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:11:21,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-01-31 22:11:21,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=401, Unknown=0, NotChecked=0, Total=506 [2022-01-31 22:11:21,087 INFO L87 Difference]: Start difference. First operand 384 states and 546 transitions. Second operand has 23 states, 22 states have (on average 3.772727272727273) internal successors, (83), 21 states have internal predecessors, (83), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:11:22,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:11:22,613 INFO L93 Difference]: Finished difference Result 978 states and 1430 transitions. [2022-01-31 22:11:22,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-31 22:11:22,613 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 3.772727272727273) internal successors, (83), 21 states have internal predecessors, (83), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 87 [2022-01-31 22:11:22,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:11:22,616 INFO L225 Difference]: With dead ends: 978 [2022-01-31 22:11:22,616 INFO L226 Difference]: Without dead ends: 584 [2022-01-31 22:11:22,617 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 25 SyntacticMatches, 6 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 460 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=334, Invalid=1388, Unknown=0, NotChecked=0, Total=1722 [2022-01-31 22:11:22,618 INFO L933 BasicCegarLoop]: 192 mSDtfsCounter, 990 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 2434 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 990 SdHoareTripleChecker+Valid, 244 SdHoareTripleChecker+Invalid, 3431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 2434 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 901 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-01-31 22:11:22,618 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [990 Valid, 244 Invalid, 3431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [96 Valid, 2434 Invalid, 0 Unknown, 901 Unchecked, 1.1s Time] [2022-01-31 22:11:22,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 584 states. [2022-01-31 22:11:22,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 584 to 475. [2022-01-31 22:11:22,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 475 states, 470 states have (on average 1.4680851063829787) internal successors, (690), 470 states have internal predecessors, (690), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:11:22,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 475 states to 475 states and 694 transitions. [2022-01-31 22:11:22,653 INFO L78 Accepts]: Start accepts. Automaton has 475 states and 694 transitions. Word has length 87 [2022-01-31 22:11:22,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:11:22,654 INFO L470 AbstractCegarLoop]: Abstraction has 475 states and 694 transitions. [2022-01-31 22:11:22,654 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 3.772727272727273) internal successors, (83), 21 states have internal predecessors, (83), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:11:22,655 INFO L276 IsEmpty]: Start isEmpty. Operand 475 states and 694 transitions. [2022-01-31 22:11:22,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-01-31 22:11:22,656 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:11:22,656 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:11:22,656 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-31 22:11:22,656 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:11:22,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:11:22,657 INFO L85 PathProgramCache]: Analyzing trace with hash -1038840053, now seen corresponding path program 1 times [2022-01-31 22:11:22,657 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:11:22,657 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1131952724] [2022-01-31 22:11:22,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:11:22,746 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:11:22,746 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2022-01-31 22:11:22,849 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:11:23,259 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 8 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=6, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:11:23,259 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:11:23,259 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:11:23,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:11:23,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:11:23,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:11:23,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:11:23,720 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:11:23,721 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1131952724] [2022-01-31 22:11:23,721 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1131952724] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:11:23,721 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:11:23,721 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-01-31 22:11:23,721 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525984620] [2022-01-31 22:11:23,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:11:23,722 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-31 22:11:23,722 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:11:23,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-31 22:11:23,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=378, Unknown=0, NotChecked=0, Total=462 [2022-01-31 22:11:23,723 INFO L87 Difference]: Start difference. First operand 475 states and 694 transitions. Second operand has 22 states, 21 states have (on average 4.0) internal successors, (84), 20 states have internal predecessors, (84), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:11:25,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:11:25,243 INFO L93 Difference]: Finished difference Result 861 states and 1223 transitions. [2022-01-31 22:11:25,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-31 22:11:25,244 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 4.0) internal successors, (84), 20 states have internal predecessors, (84), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 88 [2022-01-31 22:11:25,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:11:25,247 INFO L225 Difference]: With dead ends: 861 [2022-01-31 22:11:25,247 INFO L226 Difference]: Without dead ends: 605 [2022-01-31 22:11:25,248 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 394 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=280, Invalid=1360, Unknown=0, NotChecked=0, Total=1640 [2022-01-31 22:11:25,249 INFO L933 BasicCegarLoop]: 206 mSDtfsCounter, 873 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 2393 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 873 SdHoareTripleChecker+Valid, 253 SdHoareTripleChecker+Invalid, 2457 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 2393 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-01-31 22:11:25,249 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [873 Valid, 253 Invalid, 2457 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 2393 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-01-31 22:11:25,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 605 states. [2022-01-31 22:11:25,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 605 to 502. [2022-01-31 22:11:25,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 502 states, 497 states have (on average 1.4507042253521127) internal successors, (721), 497 states have internal predecessors, (721), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:11:25,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 502 states to 502 states and 725 transitions. [2022-01-31 22:11:25,288 INFO L78 Accepts]: Start accepts. Automaton has 502 states and 725 transitions. Word has length 88 [2022-01-31 22:11:25,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:11:25,288 INFO L470 AbstractCegarLoop]: Abstraction has 502 states and 725 transitions. [2022-01-31 22:11:25,288 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 4.0) internal successors, (84), 20 states have internal predecessors, (84), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:11:25,288 INFO L276 IsEmpty]: Start isEmpty. Operand 502 states and 725 transitions. [2022-01-31 22:11:25,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-31 22:11:25,290 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:11:25,290 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:11:25,290 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-31 22:11:25,290 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:11:25,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:11:25,291 INFO L85 PathProgramCache]: Analyzing trace with hash -1375280478, now seen corresponding path program 1 times [2022-01-31 22:11:25,291 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:11:25,291 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [665419888] [2022-01-31 22:11:25,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:11:25,374 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:11:25,380 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2022-01-31 22:11:25,789 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 8 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=6, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:11:25,864 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:11:25,865 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:11:25,865 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:11:25,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:11:25,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:11:25,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:11:25,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:11:26,096 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:11:26,096 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [665419888] [2022-01-31 22:11:26,097 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [665419888] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:11:26,097 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:11:26,097 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-31 22:11:26,097 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688700190] [2022-01-31 22:11:26,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:11:26,097 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-31 22:11:26,097 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:11:26,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-31 22:11:26,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-01-31 22:11:26,098 INFO L87 Difference]: Start difference. First operand 502 states and 725 transitions. Second operand has 16 states, 15 states have (on average 5.733333333333333) internal successors, (86), 14 states have internal predecessors, (86), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:11:26,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:11:26,884 INFO L93 Difference]: Finished difference Result 1170 states and 1704 transitions. [2022-01-31 22:11:26,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-31 22:11:26,885 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 5.733333333333333) internal successors, (86), 14 states have internal predecessors, (86), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 91 [2022-01-31 22:11:26,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:11:26,887 INFO L225 Difference]: With dead ends: 1170 [2022-01-31 22:11:26,887 INFO L226 Difference]: Without dead ends: 676 [2022-01-31 22:11:26,889 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 161 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=214, Invalid=598, Unknown=0, NotChecked=0, Total=812 [2022-01-31 22:11:26,889 INFO L933 BasicCegarLoop]: 196 mSDtfsCounter, 771 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 1233 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 771 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 1302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 1233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-31 22:11:26,890 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [771 Valid, 223 Invalid, 1302 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 1233 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-31 22:11:26,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 676 states. [2022-01-31 22:11:26,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 676 to 606. [2022-01-31 22:11:26,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 606 states, 601 states have (on average 1.410981697171381) internal successors, (848), 601 states have internal predecessors, (848), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:11:26,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 606 states to 606 states and 852 transitions. [2022-01-31 22:11:26,936 INFO L78 Accepts]: Start accepts. Automaton has 606 states and 852 transitions. Word has length 91 [2022-01-31 22:11:26,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:11:26,937 INFO L470 AbstractCegarLoop]: Abstraction has 606 states and 852 transitions. [2022-01-31 22:11:26,937 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 5.733333333333333) internal successors, (86), 14 states have internal predecessors, (86), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:11:26,937 INFO L276 IsEmpty]: Start isEmpty. Operand 606 states and 852 transitions. [2022-01-31 22:11:26,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-01-31 22:11:26,939 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:11:26,939 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:11:26,939 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-31 22:11:26,939 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:11:26,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:11:26,940 INFO L85 PathProgramCache]: Analyzing trace with hash 1523702322, now seen corresponding path program 1 times [2022-01-31 22:11:26,940 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:11:26,940 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [772691505] [2022-01-31 22:11:26,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:11:27,024 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 4 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=2, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:11:27,025 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2022-01-31 22:11:27,057 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 3 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=1, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:11:27,489 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 8 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=6, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:11:27,489 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:11:27,489 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:11:27,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:11:27,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:11:27,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:11:27,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:11:27,973 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:11:27,974 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [772691505] [2022-01-31 22:11:27,974 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [772691505] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:11:27,974 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:11:27,974 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-01-31 22:11:27,974 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76485423] [2022-01-31 22:11:27,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:11:27,974 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-01-31 22:11:27,974 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:11:27,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-01-31 22:11:27,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=142, Invalid=410, Unknown=0, NotChecked=0, Total=552 [2022-01-31 22:11:27,975 INFO L87 Difference]: Start difference. First operand 606 states and 852 transitions. Second operand has 24 states, 24 states have (on average 3.9166666666666665) internal successors, (94), 23 states have internal predecessors, (94), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:11:29,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:11:29,439 INFO L93 Difference]: Finished difference Result 1653 states and 2301 transitions. [2022-01-31 22:11:29,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-31 22:11:29,440 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.9166666666666665) internal successors, (94), 23 states have internal predecessors, (94), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 98 [2022-01-31 22:11:29,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:11:29,443 INFO L225 Difference]: With dead ends: 1653 [2022-01-31 22:11:29,443 INFO L226 Difference]: Without dead ends: 1061 [2022-01-31 22:11:29,445 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 497 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=420, Invalid=1560, Unknown=0, NotChecked=0, Total=1980 [2022-01-31 22:11:29,445 INFO L933 BasicCegarLoop]: 163 mSDtfsCounter, 911 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 2595 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 911 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 2657 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 2595 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-01-31 22:11:29,445 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [911 Valid, 200 Invalid, 2657 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 2595 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-01-31 22:11:29,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1061 states. [2022-01-31 22:11:29,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1061 to 634. [2022-01-31 22:11:29,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 634 states, 629 states have (on average 1.4038155802861685) internal successors, (883), 629 states have internal predecessors, (883), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:11:29,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 634 states to 634 states and 887 transitions. [2022-01-31 22:11:29,510 INFO L78 Accepts]: Start accepts. Automaton has 634 states and 887 transitions. Word has length 98 [2022-01-31 22:11:29,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:11:29,510 INFO L470 AbstractCegarLoop]: Abstraction has 634 states and 887 transitions. [2022-01-31 22:11:29,510 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 3.9166666666666665) internal successors, (94), 23 states have internal predecessors, (94), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:11:29,510 INFO L276 IsEmpty]: Start isEmpty. Operand 634 states and 887 transitions. [2022-01-31 22:11:29,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-01-31 22:11:29,512 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:11:29,512 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:11:29,512 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-31 22:11:29,512 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:11:29,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:11:29,513 INFO L85 PathProgramCache]: Analyzing trace with hash 243465655, now seen corresponding path program 1 times [2022-01-31 22:11:29,513 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:11:29,513 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [516871786] [2022-01-31 22:11:29,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:11:29,588 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:11:29,649 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 5 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=3, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:11:29,650 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:11:30,114 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 8 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=6, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:11:30,192 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:11:30,241 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 5 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=3, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:11:30,241 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:11:30,241 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:11:30,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:11:30,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:11:30,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:11:30,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:11:31,268 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:11:31,268 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [516871786] [2022-01-31 22:11:31,268 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [516871786] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:11:31,268 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:11:31,268 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-31 22:11:31,268 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076471617] [2022-01-31 22:11:31,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:11:31,269 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-31 22:11:31,269 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:11:31,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-31 22:11:31,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=144, Invalid=668, Unknown=0, NotChecked=0, Total=812 [2022-01-31 22:11:31,269 INFO L87 Difference]: Start difference. First operand 634 states and 887 transitions. Second operand has 28 states, 27 states have (on average 3.8518518518518516) internal successors, (104), 26 states have internal predecessors, (104), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:11:32,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:11:32,558 INFO L93 Difference]: Finished difference Result 1369 states and 1921 transitions. [2022-01-31 22:11:32,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-01-31 22:11:32,559 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 27 states have (on average 3.8518518518518516) internal successors, (104), 26 states have internal predecessors, (104), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 108 [2022-01-31 22:11:32,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:11:32,562 INFO L225 Difference]: With dead ends: 1369 [2022-01-31 22:11:32,563 INFO L226 Difference]: Without dead ends: 749 [2022-01-31 22:11:32,565 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 41 SyntacticMatches, 6 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 745 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=337, Invalid=2113, Unknown=0, NotChecked=0, Total=2450 [2022-01-31 22:11:32,565 INFO L933 BasicCegarLoop]: 183 mSDtfsCounter, 228 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 2104 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 228 SdHoareTripleChecker+Valid, 283 SdHoareTripleChecker+Invalid, 2391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 2104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 243 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-31 22:11:32,566 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [228 Valid, 283 Invalid, 2391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 2104 Invalid, 0 Unknown, 243 Unchecked, 0.8s Time] [2022-01-31 22:11:32,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 749 states. [2022-01-31 22:11:32,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 749 to 730. [2022-01-31 22:11:32,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 730 states, 725 states have (on average 1.3806896551724137) internal successors, (1001), 725 states have internal predecessors, (1001), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:11:32,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 730 states to 730 states and 1005 transitions. [2022-01-31 22:11:32,640 INFO L78 Accepts]: Start accepts. Automaton has 730 states and 1005 transitions. Word has length 108 [2022-01-31 22:11:32,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:11:32,641 INFO L470 AbstractCegarLoop]: Abstraction has 730 states and 1005 transitions. [2022-01-31 22:11:32,641 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 27 states have (on average 3.8518518518518516) internal successors, (104), 26 states have internal predecessors, (104), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:11:32,641 INFO L276 IsEmpty]: Start isEmpty. Operand 730 states and 1005 transitions. [2022-01-31 22:11:32,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-31 22:11:32,643 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:11:32,643 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:11:32,643 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-31 22:11:32,643 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:11:32,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:11:32,644 INFO L85 PathProgramCache]: Analyzing trace with hash 1095067477, now seen corresponding path program 1 times [2022-01-31 22:11:32,644 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:11:32,644 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1961073168] [2022-01-31 22:11:32,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:11:32,724 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:11:32,786 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 5 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=3, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:11:32,786 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:11:33,270 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 8 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=6, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:11:33,341 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:11:33,395 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 5 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=3, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:11:33,395 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:11:33,396 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:11:33,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:11:33,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:11:33,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:11:33,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:11:34,409 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:11:34,409 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1961073168] [2022-01-31 22:11:34,409 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1961073168] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:11:34,410 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:11:34,410 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-01-31 22:11:34,410 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68475670] [2022-01-31 22:11:34,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:11:34,410 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-01-31 22:11:34,410 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:11:34,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-01-31 22:11:34,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=153, Invalid=717, Unknown=0, NotChecked=0, Total=870 [2022-01-31 22:11:34,411 INFO L87 Difference]: Start difference. First operand 730 states and 1005 transitions. Second operand has 29 states, 28 states have (on average 3.75) internal successors, (105), 27 states have internal predecessors, (105), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:11:37,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:11:37,503 INFO L93 Difference]: Finished difference Result 2081 states and 2911 transitions. [2022-01-31 22:11:37,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-01-31 22:11:37,503 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 3.75) internal successors, (105), 27 states have internal predecessors, (105), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 109 [2022-01-31 22:11:37,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:11:37,508 INFO L225 Difference]: With dead ends: 2081 [2022-01-31 22:11:37,508 INFO L226 Difference]: Without dead ends: 1451 [2022-01-31 22:11:37,510 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 40 SyntacticMatches, 6 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1048 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=577, Invalid=2963, Unknown=0, NotChecked=0, Total=3540 [2022-01-31 22:11:37,510 INFO L933 BasicCegarLoop]: 337 mSDtfsCounter, 1430 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 5704 mSolverCounterSat, 137 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1430 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 7130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 137 IncrementalHoareTripleChecker+Valid, 5704 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1289 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-01-31 22:11:37,511 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1430 Valid, 384 Invalid, 7130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [137 Valid, 5704 Invalid, 0 Unknown, 1289 Unchecked, 2.2s Time] [2022-01-31 22:11:37,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1451 states. [2022-01-31 22:11:37,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1451 to 1297. [2022-01-31 22:11:37,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1297 states, 1292 states have (on average 1.3924148606811146) internal successors, (1799), 1292 states have internal predecessors, (1799), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:11:37,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1297 states to 1297 states and 1803 transitions. [2022-01-31 22:11:37,658 INFO L78 Accepts]: Start accepts. Automaton has 1297 states and 1803 transitions. Word has length 109 [2022-01-31 22:11:37,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:11:37,658 INFO L470 AbstractCegarLoop]: Abstraction has 1297 states and 1803 transitions. [2022-01-31 22:11:37,659 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 3.75) internal successors, (105), 27 states have internal predecessors, (105), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:11:37,659 INFO L276 IsEmpty]: Start isEmpty. Operand 1297 states and 1803 transitions. [2022-01-31 22:11:37,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-01-31 22:11:37,661 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:11:37,662 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:11:37,662 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-31 22:11:37,662 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:11:37,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:11:37,663 INFO L85 PathProgramCache]: Analyzing trace with hash 330979287, now seen corresponding path program 1 times [2022-01-31 22:11:37,663 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:11:37,663 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [173351376] [2022-01-31 22:11:37,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:11:37,760 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:11:37,797 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 3 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=1, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:11:37,798 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:11:37,831 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 3 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=1, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:11:38,251 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 8 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=6, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:11:38,311 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:11:38,311 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:11:38,312 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:11:38,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:11:38,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:11:38,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:11:38,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:11:38,968 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:11:38,968 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [173351376] [2022-01-31 22:11:38,968 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [173351376] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:11:38,968 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:11:38,968 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-31 22:11:38,968 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749033356] [2022-01-31 22:11:38,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:11:38,969 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-31 22:11:38,969 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:11:38,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-31 22:11:38,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=191, Invalid=621, Unknown=0, NotChecked=0, Total=812 [2022-01-31 22:11:38,970 INFO L87 Difference]: Start difference. First operand 1297 states and 1803 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 27 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) [2022-01-31 22:11:40,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:11:40,700 INFO L93 Difference]: Finished difference Result 3382 states and 4674 transitions. [2022-01-31 22:11:40,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-01-31 22:11:40,701 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 27 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 118 [2022-01-31 22:11:40,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:11:40,706 INFO L225 Difference]: With dead ends: 3382 [2022-01-31 22:11:40,706 INFO L226 Difference]: Without dead ends: 2187 [2022-01-31 22:11:40,709 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 838 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=540, Invalid=2322, Unknown=0, NotChecked=0, Total=2862 [2022-01-31 22:11:40,709 INFO L933 BasicCegarLoop]: 163 mSDtfsCounter, 1093 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 2850 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1093 SdHoareTripleChecker+Valid, 195 SdHoareTripleChecker+Invalid, 2906 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 2850 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-01-31 22:11:40,709 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1093 Valid, 195 Invalid, 2906 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 2850 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-01-31 22:11:40,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2187 states. [2022-01-31 22:11:40,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2187 to 1853. [2022-01-31 22:11:40,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1853 states, 1848 states have (on average 1.396103896103896) internal successors, (2580), 1848 states have internal predecessors, (2580), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:11:40,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1853 states to 1853 states and 2584 transitions. [2022-01-31 22:11:40,915 INFO L78 Accepts]: Start accepts. Automaton has 1853 states and 2584 transitions. Word has length 118 [2022-01-31 22:11:40,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:11:40,916 INFO L470 AbstractCegarLoop]: Abstraction has 1853 states and 2584 transitions. [2022-01-31 22:11:40,916 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 27 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) [2022-01-31 22:11:40,916 INFO L276 IsEmpty]: Start isEmpty. Operand 1853 states and 2584 transitions. [2022-01-31 22:11:40,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-01-31 22:11:40,920 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:11:40,920 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:11:40,920 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-31 22:11:40,920 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:11:40,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:11:40,921 INFO L85 PathProgramCache]: Analyzing trace with hash -340748858, now seen corresponding path program 1 times [2022-01-31 22:11:40,921 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:11:40,921 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1408419486] [2022-01-31 22:11:40,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:11:41,017 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:11:41,058 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 3 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=1, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:11:41,058 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:11:41,134 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:11:41,164 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 3 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=1, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:11:41,584 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 8 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=6, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:11:41,584 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:11:41,584 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:11:41,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:11:41,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:11:41,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:11:41,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:11:42,078 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:11:42,079 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1408419486] [2022-01-31 22:11:42,079 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1408419486] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:11:42,079 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:11:42,079 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-31 22:11:42,079 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298182411] [2022-01-31 22:11:42,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:11:42,079 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-31 22:11:42,079 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:11:42,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-31 22:11:42,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=501, Unknown=0, NotChecked=0, Total=600 [2022-01-31 22:11:42,080 INFO L87 Difference]: Start difference. First operand 1853 states and 2584 transitions. Second operand has 25 states, 24 states have (on average 4.75) internal successors, (114), 23 states have internal predecessors, (114), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:11:44,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:11:44,053 INFO L93 Difference]: Finished difference Result 3712 states and 5169 transitions. [2022-01-31 22:11:44,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-01-31 22:11:44,053 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 4.75) internal successors, (114), 23 states have internal predecessors, (114), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 119 [2022-01-31 22:11:44,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:11:44,059 INFO L225 Difference]: With dead ends: 3712 [2022-01-31 22:11:44,059 INFO L226 Difference]: Without dead ends: 1969 [2022-01-31 22:11:44,063 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 532 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=331, Invalid=1831, Unknown=0, NotChecked=0, Total=2162 [2022-01-31 22:11:44,064 INFO L933 BasicCegarLoop]: 203 mSDtfsCounter, 1265 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 3637 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1265 SdHoareTripleChecker+Valid, 275 SdHoareTripleChecker+Invalid, 3688 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 3637 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-01-31 22:11:44,064 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1265 Valid, 275 Invalid, 3688 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 3637 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-01-31 22:11:44,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1969 states. [2022-01-31 22:11:44,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1969 to 1878. [2022-01-31 22:11:44,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1878 states, 1873 states have (on average 1.391884676988788) internal successors, (2607), 1873 states have internal predecessors, (2607), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:11:44,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1878 states to 1878 states and 2611 transitions. [2022-01-31 22:11:44,262 INFO L78 Accepts]: Start accepts. Automaton has 1878 states and 2611 transitions. Word has length 119 [2022-01-31 22:11:44,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:11:44,262 INFO L470 AbstractCegarLoop]: Abstraction has 1878 states and 2611 transitions. [2022-01-31 22:11:44,262 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 4.75) internal successors, (114), 23 states have internal predecessors, (114), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:11:44,262 INFO L276 IsEmpty]: Start isEmpty. Operand 1878 states and 2611 transitions. [2022-01-31 22:11:44,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-01-31 22:11:44,266 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:11:44,266 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:11:44,266 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-31 22:11:44,267 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:11:44,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:11:44,267 INFO L85 PathProgramCache]: Analyzing trace with hash 109151029, now seen corresponding path program 1 times [2022-01-31 22:11:44,267 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:11:44,267 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1158675710] [2022-01-31 22:11:44,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:11:44,463 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 7 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=5, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:11:44,496 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 3 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=1, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:11:44,496 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:11:44,576 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:11:44,610 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 3 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=1, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:11:44,614 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:11:44,614 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:11:44,615 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:11:44,616 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:11:44,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:11:44,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:11:44,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:11:44,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:11:45,431 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:11:45,432 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1158675710] [2022-01-31 22:11:45,432 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1158675710] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:11:45,432 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:11:45,432 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-31 22:11:45,432 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949449982] [2022-01-31 22:11:45,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:11:45,432 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-31 22:11:45,432 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:11:45,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-31 22:11:45,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=543, Unknown=0, NotChecked=0, Total=650 [2022-01-31 22:11:45,433 INFO L87 Difference]: Start difference. First operand 1878 states and 2611 transitions. Second operand has 25 states, 24 states have (on average 4.791666666666667) internal successors, (115), 23 states have internal predecessors, (115), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:11:47,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:11:47,283 INFO L93 Difference]: Finished difference Result 4280 states and 5971 transitions. [2022-01-31 22:11:47,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-01-31 22:11:47,284 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 4.791666666666667) internal successors, (115), 23 states have internal predecessors, (115), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 120 [2022-01-31 22:11:47,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:11:47,289 INFO L225 Difference]: With dead ends: 4280 [2022-01-31 22:11:47,289 INFO L226 Difference]: Without dead ends: 2512 [2022-01-31 22:11:47,292 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 45 SyntacticMatches, 12 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 711 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=343, Invalid=1913, Unknown=0, NotChecked=0, Total=2256 [2022-01-31 22:11:47,293 INFO L933 BasicCegarLoop]: 203 mSDtfsCounter, 1190 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 2883 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1190 SdHoareTripleChecker+Valid, 255 SdHoareTripleChecker+Invalid, 2925 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 2883 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-01-31 22:11:47,293 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1190 Valid, 255 Invalid, 2925 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 2883 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-01-31 22:11:47,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2512 states. [2022-01-31 22:11:47,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2512 to 1915. [2022-01-31 22:11:47,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1915 states, 1910 states have (on average 1.3905759162303666) internal successors, (2656), 1910 states have internal predecessors, (2656), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:11:47,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1915 states to 1915 states and 2660 transitions. [2022-01-31 22:11:47,486 INFO L78 Accepts]: Start accepts. Automaton has 1915 states and 2660 transitions. Word has length 120 [2022-01-31 22:11:47,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:11:47,486 INFO L470 AbstractCegarLoop]: Abstraction has 1915 states and 2660 transitions. [2022-01-31 22:11:47,486 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 4.791666666666667) internal successors, (115), 23 states have internal predecessors, (115), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:11:47,486 INFO L276 IsEmpty]: Start isEmpty. Operand 1915 states and 2660 transitions. [2022-01-31 22:11:47,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-31 22:11:47,490 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:11:47,490 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:11:47,491 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-31 22:11:47,491 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:11:47,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:11:47,491 INFO L85 PathProgramCache]: Analyzing trace with hash -1382123926, now seen corresponding path program 1 times [2022-01-31 22:11:47,491 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:11:47,491 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1068810033] [2022-01-31 22:11:47,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:11:47,543 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 3 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=1, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:11:47,639 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:11:47,640 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:11:47,728 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:11:47,728 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:11:47,754 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 3 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=1, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:11:48,168 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 8 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=6, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:11:48,240 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:11:48,241 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:11:48,241 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:11:48,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:11:48,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:11:48,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:11:48,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:11:48,877 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:11:48,877 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1068810033] [2022-01-31 22:11:48,877 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1068810033] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:11:48,877 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:11:48,877 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-01-31 22:11:48,877 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079006384] [2022-01-31 22:11:48,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:11:48,877 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-01-31 22:11:48,877 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:11:48,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-01-31 22:11:48,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=348, Unknown=0, NotChecked=0, Total=420 [2022-01-31 22:11:48,878 INFO L87 Difference]: Start difference. First operand 1915 states and 2660 transitions. Second operand has 21 states, 20 states have (on average 5.85) internal successors, (117), 19 states have internal predecessors, (117), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:11:50,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:11:50,563 INFO L93 Difference]: Finished difference Result 4219 states and 5962 transitions. [2022-01-31 22:11:50,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-31 22:11:50,564 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 5.85) internal successors, (117), 19 states have internal predecessors, (117), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 121 [2022-01-31 22:11:50,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:11:50,570 INFO L225 Difference]: With dead ends: 4219 [2022-01-31 22:11:50,571 INFO L226 Difference]: Without dead ends: 2328 [2022-01-31 22:11:50,574 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 67 SyntacticMatches, 1 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 333 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=242, Invalid=1240, Unknown=0, NotChecked=0, Total=1482 [2022-01-31 22:11:50,574 INFO L933 BasicCegarLoop]: 152 mSDtfsCounter, 850 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 2541 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 850 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 2632 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 2541 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-01-31 22:11:50,574 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [850 Valid, 209 Invalid, 2632 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 2541 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-01-31 22:11:50,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2328 states. [2022-01-31 22:11:50,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2328 to 2265. [2022-01-31 22:11:50,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2265 states, 2260 states have (on average 1.4119469026548672) internal successors, (3191), 2260 states have internal predecessors, (3191), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:11:50,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2265 states to 2265 states and 3195 transitions. [2022-01-31 22:11:50,833 INFO L78 Accepts]: Start accepts. Automaton has 2265 states and 3195 transitions. Word has length 121 [2022-01-31 22:11:50,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:11:50,834 INFO L470 AbstractCegarLoop]: Abstraction has 2265 states and 3195 transitions. [2022-01-31 22:11:50,834 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 5.85) internal successors, (117), 19 states have internal predecessors, (117), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:11:50,834 INFO L276 IsEmpty]: Start isEmpty. Operand 2265 states and 3195 transitions. [2022-01-31 22:11:50,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-01-31 22:11:50,838 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:11:50,838 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:11:50,838 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-31 22:11:50,838 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:11:50,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:11:50,838 INFO L85 PathProgramCache]: Analyzing trace with hash 145511329, now seen corresponding path program 1 times [2022-01-31 22:11:50,839 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:11:50,839 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2121962498] [2022-01-31 22:11:50,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:11:50,887 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 3 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=1, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:11:51,055 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 7 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=5, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:11:51,055 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:11:51,194 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 7 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=5, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:11:51,195 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:11:51,232 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 3 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=1, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:11:51,328 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:11:51,329 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:11:51,329 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:11:51,329 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:11:51,329 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:11:51,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:11:51,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:11:51,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:11:51,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:11:52,136 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:11:52,136 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2121962498] [2022-01-31 22:11:52,136 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [2121962498] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:11:52,136 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:11:52,136 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-31 22:11:52,136 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715006295] [2022-01-31 22:11:52,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:11:52,137 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-31 22:11:52,137 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:11:52,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-31 22:11:52,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=159, Invalid=597, Unknown=0, NotChecked=0, Total=756 [2022-01-31 22:11:52,138 INFO L87 Difference]: Start difference. First operand 2265 states and 3195 transitions. Second operand has 28 states, 28 states have (on average 4.178571428571429) internal successors, (117), 27 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:11:53,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:11:53,803 INFO L93 Difference]: Finished difference Result 4487 states and 6336 transitions. [2022-01-31 22:11:53,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-01-31 22:11:53,804 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.178571428571429) internal successors, (117), 27 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 122 [2022-01-31 22:11:53,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:11:53,809 INFO L225 Difference]: With dead ends: 4487 [2022-01-31 22:11:53,809 INFO L226 Difference]: Without dead ends: 2351 [2022-01-31 22:11:53,812 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 44 SyntacticMatches, 12 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 963 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=471, Invalid=2285, Unknown=0, NotChecked=0, Total=2756 [2022-01-31 22:11:53,812 INFO L933 BasicCegarLoop]: 192 mSDtfsCounter, 360 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 2586 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 360 SdHoareTripleChecker+Valid, 244 SdHoareTripleChecker+Invalid, 2627 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 2586 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-01-31 22:11:53,812 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [360 Valid, 244 Invalid, 2627 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 2586 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-01-31 22:11:53,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2351 states. [2022-01-31 22:11:54,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2351 to 2291. [2022-01-31 22:11:54,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2291 states, 2286 states have (on average 1.4081364829396326) internal successors, (3219), 2286 states have internal predecessors, (3219), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:11:54,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2291 states to 2291 states and 3223 transitions. [2022-01-31 22:11:54,056 INFO L78 Accepts]: Start accepts. Automaton has 2291 states and 3223 transitions. Word has length 122 [2022-01-31 22:11:54,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:11:54,056 INFO L470 AbstractCegarLoop]: Abstraction has 2291 states and 3223 transitions. [2022-01-31 22:11:54,056 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.178571428571429) internal successors, (117), 27 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:11:54,056 INFO L276 IsEmpty]: Start isEmpty. Operand 2291 states and 3223 transitions. [2022-01-31 22:11:54,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-01-31 22:11:54,060 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:11:54,060 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:11:54,060 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-31 22:11:54,060 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:11:54,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:11:54,061 INFO L85 PathProgramCache]: Analyzing trace with hash 582810964, now seen corresponding path program 2 times [2022-01-31 22:11:54,061 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:11:54,061 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [189463787] [2022-01-31 22:11:54,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:11:54,129 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 4 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=2, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:11:54,218 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:11:54,218 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:11:54,310 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:11:54,311 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:11:54,336 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 3 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=1, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:11:54,763 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 8 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=6, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:11:54,846 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:11:54,846 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:11:54,846 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:11:54,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:11:54,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:11:54,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:11:54,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:11:55,540 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:11:55,541 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [189463787] [2022-01-31 22:11:55,541 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [189463787] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:11:55,541 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:11:55,541 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-01-31 22:11:55,541 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33425743] [2022-01-31 22:11:55,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:11:55,541 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-01-31 22:11:55,542 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:11:55,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-01-31 22:11:55,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=494, Unknown=0, NotChecked=0, Total=600 [2022-01-31 22:11:55,542 INFO L87 Difference]: Start difference. First operand 2291 states and 3223 transitions. Second operand has 24 states, 23 states have (on average 5.173913043478261) internal successors, (119), 22 states have internal predecessors, (119), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:11:57,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:11:57,954 INFO L93 Difference]: Finished difference Result 4629 states and 6491 transitions. [2022-01-31 22:11:57,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-31 22:11:57,954 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 5.173913043478261) internal successors, (119), 22 states have internal predecessors, (119), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 123 [2022-01-31 22:11:57,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:11:57,961 INFO L225 Difference]: With dead ends: 4629 [2022-01-31 22:11:57,961 INFO L226 Difference]: Without dead ends: 2493 [2022-01-31 22:11:57,964 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 64 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 530 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=338, Invalid=1732, Unknown=0, NotChecked=0, Total=2070 [2022-01-31 22:11:57,964 INFO L933 BasicCegarLoop]: 203 mSDtfsCounter, 723 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 4356 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 723 SdHoareTripleChecker+Valid, 280 SdHoareTripleChecker+Invalid, 4425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 4356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-01-31 22:11:57,965 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [723 Valid, 280 Invalid, 4425 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 4356 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-01-31 22:11:57,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2493 states. [2022-01-31 22:11:58,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2493 to 2271. [2022-01-31 22:11:58,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2271 states, 2266 states have (on average 1.4073256840247133) internal successors, (3189), 2266 states have internal predecessors, (3189), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:11:58,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2271 states to 2271 states and 3193 transitions. [2022-01-31 22:11:58,197 INFO L78 Accepts]: Start accepts. Automaton has 2271 states and 3193 transitions. Word has length 123 [2022-01-31 22:11:58,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:11:58,198 INFO L470 AbstractCegarLoop]: Abstraction has 2271 states and 3193 transitions. [2022-01-31 22:11:58,198 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 5.173913043478261) internal successors, (119), 22 states have internal predecessors, (119), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:11:58,198 INFO L276 IsEmpty]: Start isEmpty. Operand 2271 states and 3193 transitions. [2022-01-31 22:11:58,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-01-31 22:11:58,201 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:11:58,202 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:11:58,202 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-31 22:11:58,202 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:11:58,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:11:58,202 INFO L85 PathProgramCache]: Analyzing trace with hash -961070636, now seen corresponding path program 1 times [2022-01-31 22:11:58,202 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:11:58,203 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2136978378] [2022-01-31 22:11:58,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:11:58,259 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 4 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=2, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:11:58,397 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 7 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=7}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:11:58,398 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:11:58,524 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 7 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=5, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:11:58,524 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:11:58,554 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 3 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=1, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:11:58,679 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 7 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=5, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:11:58,680 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:11:58,680 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:11:58,680 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:11:58,680 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:11:58,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:11:58,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:11:58,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:11:58,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:12:00,045 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:12:00,045 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2136978378] [2022-01-31 22:12:00,046 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [2136978378] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:12:00,047 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:12:00,047 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2022-01-31 22:12:00,047 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180740946] [2022-01-31 22:12:00,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:12:00,047 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-01-31 22:12:00,048 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:12:00,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-01-31 22:12:00,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=206, Invalid=786, Unknown=0, NotChecked=0, Total=992 [2022-01-31 22:12:00,048 INFO L87 Difference]: Start difference. First operand 2271 states and 3193 transitions. Second operand has 31 states, 31 states have (on average 3.838709677419355) internal successors, (119), 30 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) [2022-01-31 22:12:03,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:12:03,983 INFO L93 Difference]: Finished difference Result 8340 states and 11891 transitions. [2022-01-31 22:12:03,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-01-31 22:12:03,984 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 3.838709677419355) internal successors, (119), 30 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 123 [2022-01-31 22:12:03,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:12:04,017 INFO L225 Difference]: With dead ends: 8340 [2022-01-31 22:12:04,017 INFO L226 Difference]: Without dead ends: 6133 [2022-01-31 22:12:04,022 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 19 SyntacticMatches, 34 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1873 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=591, Invalid=2949, Unknown=0, NotChecked=0, Total=3540 [2022-01-31 22:12:04,022 INFO L933 BasicCegarLoop]: 451 mSDtfsCounter, 879 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 7346 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 879 SdHoareTripleChecker+Valid, 498 SdHoareTripleChecker+Invalid, 7394 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 7346 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-01-31 22:12:04,023 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [879 Valid, 498 Invalid, 7394 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 7346 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-01-31 22:12:04,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6133 states. [2022-01-31 22:12:04,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6133 to 5697. [2022-01-31 22:12:04,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5697 states, 5692 states have (on average 1.446767392832045) internal successors, (8235), 5692 states have internal predecessors, (8235), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:12:04,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5697 states to 5697 states and 8239 transitions. [2022-01-31 22:12:04,539 INFO L78 Accepts]: Start accepts. Automaton has 5697 states and 8239 transitions. Word has length 123 [2022-01-31 22:12:04,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:12:04,539 INFO L470 AbstractCegarLoop]: Abstraction has 5697 states and 8239 transitions. [2022-01-31 22:12:04,539 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 3.838709677419355) internal successors, (119), 30 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) [2022-01-31 22:12:04,539 INFO L276 IsEmpty]: Start isEmpty. Operand 5697 states and 8239 transitions. [2022-01-31 22:12:04,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-01-31 22:12:04,545 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:12:04,545 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:12:04,545 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-31 22:12:04,545 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:12:04,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:12:04,546 INFO L85 PathProgramCache]: Analyzing trace with hash -2135933748, now seen corresponding path program 1 times [2022-01-31 22:12:04,546 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:12:04,546 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1998680095] [2022-01-31 22:12:04,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:12:04,989 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 7 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=5, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:12:05,066 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:12:05,067 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:12:05,137 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:12:05,138 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:12:05,563 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 8 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=6, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:12:05,657 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:12:06,140 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 7 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=5, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:12:06,140 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:12:06,141 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:12:06,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:12:06,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:12:06,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:12:06,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:12:07,390 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:12:07,390 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1998680095] [2022-01-31 22:12:07,390 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1998680095] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:12:07,390 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:12:07,390 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2022-01-31 22:12:07,390 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501023125] [2022-01-31 22:12:07,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:12:07,391 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-01-31 22:12:07,391 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:12:07,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-01-31 22:12:07,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=172, Invalid=884, Unknown=0, NotChecked=0, Total=1056 [2022-01-31 22:12:07,392 INFO L87 Difference]: Start difference. First operand 5697 states and 8239 transitions. Second operand has 31 states, 30 states have (on average 4.3) internal successors, (129), 29 states have internal predecessors, (129), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:12:11,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:12:11,821 INFO L93 Difference]: Finished difference Result 16640 states and 24131 transitions. [2022-01-31 22:12:11,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-01-31 22:12:11,822 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 30 states have (on average 4.3) internal successors, (129), 29 states have internal predecessors, (129), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 133 [2022-01-31 22:12:11,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:12:11,832 INFO L225 Difference]: With dead ends: 16640 [2022-01-31 22:12:11,832 INFO L226 Difference]: Without dead ends: 6687 [2022-01-31 22:12:11,845 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 60 SyntacticMatches, 6 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1278 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=627, Invalid=3663, Unknown=0, NotChecked=0, Total=4290 [2022-01-31 22:12:11,845 INFO L933 BasicCegarLoop]: 374 mSDtfsCounter, 1191 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 6400 mSolverCounterSat, 123 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1191 SdHoareTripleChecker+Valid, 426 SdHoareTripleChecker+Invalid, 8808 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 123 IncrementalHoareTripleChecker+Valid, 6400 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 2285 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-01-31 22:12:11,845 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1191 Valid, 426 Invalid, 8808 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [123 Valid, 6400 Invalid, 0 Unknown, 2285 Unchecked, 2.4s Time] [2022-01-31 22:12:11,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6687 states. [2022-01-31 22:12:12,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6687 to 6219. [2022-01-31 22:12:12,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6219 states, 6214 states have (on average 1.4365947859671708) internal successors, (8927), 6214 states have internal predecessors, (8927), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:12:12,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6219 states to 6219 states and 8931 transitions. [2022-01-31 22:12:12,518 INFO L78 Accepts]: Start accepts. Automaton has 6219 states and 8931 transitions. Word has length 133 [2022-01-31 22:12:12,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:12:12,518 INFO L470 AbstractCegarLoop]: Abstraction has 6219 states and 8931 transitions. [2022-01-31 22:12:12,518 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 30 states have (on average 4.3) internal successors, (129), 29 states have internal predecessors, (129), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:12:12,519 INFO L276 IsEmpty]: Start isEmpty. Operand 6219 states and 8931 transitions. [2022-01-31 22:12:12,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-31 22:12:12,523 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:12:12,523 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:12:12,523 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-01-31 22:12:12,523 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:12:12,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:12:12,523 INFO L85 PathProgramCache]: Analyzing trace with hash -1669557704, now seen corresponding path program 1 times [2022-01-31 22:12:12,524 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:12:12,524 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1234897788] [2022-01-31 22:12:12,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:12:12,619 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:12:12,747 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 6 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:12:12,748 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:12:12,835 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:12:12,835 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:12:13,298 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 8 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=6, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:12:13,393 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:12:13,499 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:12:13,500 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:12:13,500 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:12:13,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:12:13,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:12:13,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:12:13,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:12:14,571 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:12:14,572 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1234897788] [2022-01-31 22:12:14,572 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1234897788] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:12:14,572 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:12:14,572 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [33] imperfect sequences [] total 33 [2022-01-31 22:12:14,572 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482104716] [2022-01-31 22:12:14,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:12:14,572 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2022-01-31 22:12:14,572 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:12:14,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2022-01-31 22:12:14,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=202, Invalid=920, Unknown=0, NotChecked=0, Total=1122 [2022-01-31 22:12:14,573 INFO L87 Difference]: Start difference. First operand 6219 states and 8931 transitions. Second operand has 33 states, 33 states have (on average 3.9696969696969697) internal successors, (131), 32 states have internal predecessors, (131), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:12:17,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:12:17,886 INFO L93 Difference]: Finished difference Result 18105 states and 26143 transitions. [2022-01-31 22:12:17,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-31 22:12:17,886 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 3.9696969696969697) internal successors, (131), 32 states have internal predecessors, (131), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 135 [2022-01-31 22:12:17,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:12:17,909 INFO L225 Difference]: With dead ends: 18105 [2022-01-31 22:12:17,909 INFO L226 Difference]: Without dead ends: 11452 [2022-01-31 22:12:17,922 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1158 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=571, Invalid=3335, Unknown=0, NotChecked=0, Total=3906 [2022-01-31 22:12:17,922 INFO L933 BasicCegarLoop]: 199 mSDtfsCounter, 641 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 3701 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 641 SdHoareTripleChecker+Valid, 226 SdHoareTripleChecker+Invalid, 3733 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 3701 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-01-31 22:12:17,922 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [641 Valid, 226 Invalid, 3733 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 3701 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-01-31 22:12:17,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11452 states. [2022-01-31 22:12:18,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11452 to 6869. [2022-01-31 22:12:18,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6869 states, 6864 states have (on average 1.4392482517482517) internal successors, (9879), 6864 states have internal predecessors, (9879), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:12:18,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6869 states to 6869 states and 9883 transitions. [2022-01-31 22:12:18,814 INFO L78 Accepts]: Start accepts. Automaton has 6869 states and 9883 transitions. Word has length 135 [2022-01-31 22:12:18,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:12:18,814 INFO L470 AbstractCegarLoop]: Abstraction has 6869 states and 9883 transitions. [2022-01-31 22:12:18,814 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 3.9696969696969697) internal successors, (131), 32 states have internal predecessors, (131), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:12:18,814 INFO L276 IsEmpty]: Start isEmpty. Operand 6869 states and 9883 transitions. [2022-01-31 22:12:18,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2022-01-31 22:12:18,822 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:12:18,822 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:12:18,822 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-01-31 22:12:18,822 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:12:18,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:12:18,823 INFO L85 PathProgramCache]: Analyzing trace with hash 580200195, now seen corresponding path program 1 times [2022-01-31 22:12:18,823 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:12:18,823 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1334133319] [2022-01-31 22:12:18,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:12:18,943 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:12:19,029 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:12:19,492 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 7 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=5, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:12:19,523 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 3 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=1, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:12:19,523 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:12:19,628 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:12:19,628 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:12:19,661 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 3 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=1, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:12:20,072 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 8 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=6, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:12:20,199 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:12:20,279 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:12:20,741 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 7 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=5, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:12:20,742 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:12:20,742 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:12:20,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:12:20,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:12:20,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:12:20,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:12:21,731 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:12:21,732 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1334133319] [2022-01-31 22:12:21,732 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1334133319] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:12:21,732 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:12:21,732 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-01-31 22:12:21,732 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196917957] [2022-01-31 22:12:21,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:12:21,732 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-01-31 22:12:21,732 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:12:21,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-01-31 22:12:21,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=135, Invalid=795, Unknown=0, NotChecked=0, Total=930 [2022-01-31 22:12:21,733 INFO L87 Difference]: Start difference. First operand 6869 states and 9883 transitions. Second operand has 29 states, 28 states have (on average 6.107142857142857) internal successors, (171), 27 states have internal predecessors, (171), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:12:25,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:12:25,948 INFO L93 Difference]: Finished difference Result 14324 states and 20594 transitions. [2022-01-31 22:12:25,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-31 22:12:25,949 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 6.107142857142857) internal successors, (171), 27 states have internal predecessors, (171), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 201 [2022-01-31 22:12:25,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:12:25,966 INFO L225 Difference]: With dead ends: 14324 [2022-01-31 22:12:25,966 INFO L226 Difference]: Without dead ends: 7630 [2022-01-31 22:12:25,982 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 137 SyntacticMatches, 1 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 947 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=457, Invalid=3083, Unknown=0, NotChecked=0, Total=3540 [2022-01-31 22:12:25,983 INFO L933 BasicCegarLoop]: 341 mSDtfsCounter, 979 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 7052 mSolverCounterSat, 109 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 979 SdHoareTripleChecker+Valid, 393 SdHoareTripleChecker+Invalid, 7161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 109 IncrementalHoareTripleChecker+Valid, 7052 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-01-31 22:12:25,983 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [979 Valid, 393 Invalid, 7161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [109 Valid, 7052 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-01-31 22:12:25,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7630 states. [2022-01-31 22:12:26,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7630 to 6849. [2022-01-31 22:12:26,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6849 states, 6844 states have (on average 1.440385739333723) internal successors, (9858), 6844 states have internal predecessors, (9858), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:12:26,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6849 states to 6849 states and 9862 transitions. [2022-01-31 22:12:26,902 INFO L78 Accepts]: Start accepts. Automaton has 6849 states and 9862 transitions. Word has length 201 [2022-01-31 22:12:26,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:12:26,902 INFO L470 AbstractCegarLoop]: Abstraction has 6849 states and 9862 transitions. [2022-01-31 22:12:26,902 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 6.107142857142857) internal successors, (171), 27 states have internal predecessors, (171), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:12:26,902 INFO L276 IsEmpty]: Start isEmpty. Operand 6849 states and 9862 transitions. [2022-01-31 22:12:26,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2022-01-31 22:12:26,914 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:12:26,914 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:12:26,914 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-01-31 22:12:26,914 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:12:26,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:12:26,915 INFO L85 PathProgramCache]: Analyzing trace with hash -1568177277, now seen corresponding path program 1 times [2022-01-31 22:12:26,915 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:12:26,915 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1902807588] [2022-01-31 22:12:26,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:12:30,213 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 8 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=8}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:12:30,290 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:12:30,324 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 3 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=1, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:12:30,445 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 7 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=5, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:12:30,445 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:12:30,566 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 7 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=5, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:12:30,566 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:12:30,591 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 3 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=1, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:12:30,705 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 7 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=5, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:12:33,842 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 9 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=7, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:12:33,899 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:12:34,292 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 7 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=5, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:12:34,292 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:12:34,292 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:12:34,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:12:34,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:12:34,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:12:34,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:12:36,138 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:12:36,138 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1902807588] [2022-01-31 22:12:36,138 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1902807588] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:12:36,139 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:12:36,139 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [36] imperfect sequences [] total 36 [2022-01-31 22:12:36,139 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180653232] [2022-01-31 22:12:36,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:12:36,139 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2022-01-31 22:12:36,139 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:12:36,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2022-01-31 22:12:36,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=255, Invalid=1151, Unknown=0, NotChecked=0, Total=1406 [2022-01-31 22:12:36,140 INFO L87 Difference]: Start difference. First operand 6849 states and 9862 transitions. Second operand has 36 states, 36 states have (on average 4.75) internal successors, (171), 35 states have internal predecessors, (171), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:12:40,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:12:40,505 INFO L93 Difference]: Finished difference Result 14286 states and 20552 transitions. [2022-01-31 22:12:40,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-01-31 22:12:40,507 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 4.75) internal successors, (171), 35 states have internal predecessors, (171), 1 states have call successors, (3), 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 201 [2022-01-31 22:12:40,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:12:40,521 INFO L225 Difference]: With dead ends: 14286 [2022-01-31 22:12:40,521 INFO L226 Difference]: Without dead ends: 7550 [2022-01-31 22:12:40,536 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 86 SyntacticMatches, 43 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2594 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=698, Invalid=4272, Unknown=0, NotChecked=0, Total=4970 [2022-01-31 22:12:40,536 INFO L933 BasicCegarLoop]: 300 mSDtfsCounter, 654 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 7034 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 654 SdHoareTripleChecker+Valid, 367 SdHoareTripleChecker+Invalid, 7119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 7034 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-01-31 22:12:40,536 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [654 Valid, 367 Invalid, 7119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 7034 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-01-31 22:12:40,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7550 states. [2022-01-31 22:12:41,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7550 to 6920. [2022-01-31 22:12:41,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6920 states, 6915 states have (on average 1.4361532899493854) internal successors, (9931), 6915 states have internal predecessors, (9931), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:12:41,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6920 states to 6920 states and 9935 transitions. [2022-01-31 22:12:41,431 INFO L78 Accepts]: Start accepts. Automaton has 6920 states and 9935 transitions. Word has length 201 [2022-01-31 22:12:41,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:12:41,431 INFO L470 AbstractCegarLoop]: Abstraction has 6920 states and 9935 transitions. [2022-01-31 22:12:41,431 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 4.75) internal successors, (171), 35 states have internal predecessors, (171), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:12:41,431 INFO L276 IsEmpty]: Start isEmpty. Operand 6920 states and 9935 transitions. [2022-01-31 22:12:41,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2022-01-31 22:12:41,443 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:12:41,444 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:12:41,444 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-01-31 22:12:41,444 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:12:41,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:12:41,444 INFO L85 PathProgramCache]: Analyzing trace with hash -256885070, now seen corresponding path program 1 times [2022-01-31 22:12:41,444 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:12:41,444 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [222180502] [2022-01-31 22:12:41,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:12:41,629 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 7 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=5, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:12:41,699 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:12:42,144 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 7 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=5, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:12:42,178 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 3 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=1, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:12:42,178 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:12:42,316 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 7 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=5, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:12:42,316 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:12:42,342 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 3 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=1, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:12:45,463 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 9 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=7, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:12:45,544 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:12:45,601 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:12:46,008 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 7 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=5, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:12:46,008 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:12:46,008 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:12:46,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:12:46,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:12:46,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:12:46,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:12:46,943 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:12:46,943 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [222180502] [2022-01-31 22:12:46,943 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [222180502] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:12:46,943 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:12:46,943 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2022-01-31 22:12:46,943 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585713413] [2022-01-31 22:12:46,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:12:46,943 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-01-31 22:12:46,943 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:12:46,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-01-31 22:12:46,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=287, Invalid=835, Unknown=0, NotChecked=0, Total=1122 [2022-01-31 22:12:46,944 INFO L87 Difference]: Start difference. First operand 6920 states and 9935 transitions. Second operand has 31 states, 31 states have (on average 4.516129032258065) internal successors, (140), 30 states have internal predecessors, (140), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:12:50,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:12:50,365 INFO L93 Difference]: Finished difference Result 20031 states and 28810 transitions. [2022-01-31 22:12:50,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-01-31 22:12:50,366 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 4.516129032258065) internal successors, (140), 30 states have internal predecessors, (140), 1 states have call successors, (3), 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 202 [2022-01-31 22:12:50,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:12:50,390 INFO L225 Difference]: With dead ends: 20031 [2022-01-31 22:12:50,390 INFO L226 Difference]: Without dead ends: 13295 [2022-01-31 22:12:50,404 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 120 SyntacticMatches, 12 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1487 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=753, Invalid=3029, Unknown=0, NotChecked=0, Total=3782 [2022-01-31 22:12:50,405 INFO L933 BasicCegarLoop]: 194 mSDtfsCounter, 719 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 3351 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 719 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 3393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 3351 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-01-31 22:12:50,405 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [719 Valid, 221 Invalid, 3393 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 3351 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-01-31 22:12:50,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13295 states. [2022-01-31 22:12:51,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13295 to 7547. [2022-01-31 22:12:51,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7547 states, 7542 states have (on average 1.441660037125431) internal successors, (10873), 7542 states have internal predecessors, (10873), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:12:51,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7547 states to 7547 states and 10877 transitions. [2022-01-31 22:12:51,486 INFO L78 Accepts]: Start accepts. Automaton has 7547 states and 10877 transitions. Word has length 202 [2022-01-31 22:12:51,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:12:51,486 INFO L470 AbstractCegarLoop]: Abstraction has 7547 states and 10877 transitions. [2022-01-31 22:12:51,486 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 4.516129032258065) internal successors, (140), 30 states have internal predecessors, (140), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:12:51,486 INFO L276 IsEmpty]: Start isEmpty. Operand 7547 states and 10877 transitions. [2022-01-31 22:12:51,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2022-01-31 22:12:51,498 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:12:51,498 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:12:51,498 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-01-31 22:12:51,499 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:12:51,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:12:51,499 INFO L85 PathProgramCache]: Analyzing trace with hash 2069067504, now seen corresponding path program 1 times [2022-01-31 22:12:51,499 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:12:51,499 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [887413877] [2022-01-31 22:12:51,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:12:51,923 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 7 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=5, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:12:51,999 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:12:52,114 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:12:52,189 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:12:52,190 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:12:52,264 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:12:52,688 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 7 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=5, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:12:52,688 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:12:52,748 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:12:53,169 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 8 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=6, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:12:53,241 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:12:53,647 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 7 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=5, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:12:53,761 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:12:53,761 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:12:53,761 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:12:53,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:12:53,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:12:53,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:12:53,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:12:54,816 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:12:54,816 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [887413877] [2022-01-31 22:12:54,816 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [887413877] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:12:54,816 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:12:54,816 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2022-01-31 22:12:54,816 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479081113] [2022-01-31 22:12:54,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:12:54,817 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-01-31 22:12:54,817 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:12:54,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-01-31 22:12:54,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=199, Invalid=923, Unknown=0, NotChecked=0, Total=1122 [2022-01-31 22:12:54,817 INFO L87 Difference]: Start difference. First operand 7547 states and 10877 transitions. Second operand has 31 states, 30 states have (on average 6.933333333333334) internal successors, (208), 29 states have internal predecessors, (208), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:12:59,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:12:59,552 INFO L93 Difference]: Finished difference Result 20320 states and 29128 transitions. [2022-01-31 22:12:59,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-01-31 22:12:59,553 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 30 states have (on average 6.933333333333334) internal successors, (208), 29 states have internal predecessors, (208), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 214 [2022-01-31 22:12:59,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:12:59,565 INFO L225 Difference]: With dead ends: 20320 [2022-01-31 22:12:59,565 INFO L226 Difference]: Without dead ends: 8125 [2022-01-31 22:12:59,580 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1361 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=690, Invalid=3866, Unknown=0, NotChecked=0, Total=4556 [2022-01-31 22:12:59,581 INFO L933 BasicCegarLoop]: 240 mSDtfsCounter, 1619 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 5269 mSolverCounterSat, 159 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1619 SdHoareTripleChecker+Valid, 292 SdHoareTripleChecker+Invalid, 5428 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 159 IncrementalHoareTripleChecker+Valid, 5269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-01-31 22:12:59,581 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1619 Valid, 292 Invalid, 5428 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [159 Valid, 5269 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-01-31 22:12:59,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8125 states. [2022-01-31 22:13:00,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8125 to 7549. [2022-01-31 22:13:00,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7549 states, 7544 states have (on average 1.434915164369035) internal successors, (10825), 7544 states have internal predecessors, (10825), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:13:00,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7549 states to 7549 states and 10829 transitions. [2022-01-31 22:13:00,638 INFO L78 Accepts]: Start accepts. Automaton has 7549 states and 10829 transitions. Word has length 214 [2022-01-31 22:13:00,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:13:00,639 INFO L470 AbstractCegarLoop]: Abstraction has 7549 states and 10829 transitions. [2022-01-31 22:13:00,639 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 30 states have (on average 6.933333333333334) internal successors, (208), 29 states have internal predecessors, (208), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:13:00,639 INFO L276 IsEmpty]: Start isEmpty. Operand 7549 states and 10829 transitions. [2022-01-31 22:13:00,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2022-01-31 22:13:00,644 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:13:00,644 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:13:00,644 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-01-31 22:13:00,644 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:13:00,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:13:00,644 INFO L85 PathProgramCache]: Analyzing trace with hash 2083139907, now seen corresponding path program 1 times [2022-01-31 22:13:00,644 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:13:00,644 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [570870638] [2022-01-31 22:13:00,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:13:00,795 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 7 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=5, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:13:04,010 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 8 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=6, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:13:04,112 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:13:04,179 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:13:04,179 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:13:04,179 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:13:04,179 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:13:04,180 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:13:04,237 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:13:07,370 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 9 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=7, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:13:07,371 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:13:07,371 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:13:07,479 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:13:07,868 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 7 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=5, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:13:07,868 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:13:07,868 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:13:07,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:13:07,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:13:07,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:13:07,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:13:09,751 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:13:09,751 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [570870638] [2022-01-31 22:13:09,752 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [570870638] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:13:09,752 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:13:09,752 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [] total 34 [2022-01-31 22:13:09,752 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545230930] [2022-01-31 22:13:09,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:13:09,752 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-01-31 22:13:09,752 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:13:09,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-01-31 22:13:09,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=197, Invalid=1063, Unknown=0, NotChecked=0, Total=1260 [2022-01-31 22:13:09,753 INFO L87 Difference]: Start difference. First operand 7549 states and 10829 transitions. Second operand has 34 states, 33 states have (on average 5.393939393939394) internal successors, (178), 32 states have internal predecessors, (178), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:13:15,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:13:15,525 INFO L93 Difference]: Finished difference Result 16094 states and 22939 transitions. [2022-01-31 22:13:15,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-01-31 22:13:15,525 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 33 states have (on average 5.393939393939394) internal successors, (178), 32 states have internal predecessors, (178), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 215 [2022-01-31 22:13:15,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:13:15,537 INFO L225 Difference]: With dead ends: 16094 [2022-01-31 22:13:15,537 INFO L226 Difference]: Without dead ends: 8753 [2022-01-31 22:13:15,547 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 104 SyntacticMatches, 43 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2262 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=702, Invalid=4554, Unknown=0, NotChecked=0, Total=5256 [2022-01-31 22:13:15,548 INFO L933 BasicCegarLoop]: 403 mSDtfsCounter, 1088 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 10006 mSolverCounterSat, 116 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1088 SdHoareTripleChecker+Valid, 470 SdHoareTripleChecker+Invalid, 10122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 116 IncrementalHoareTripleChecker+Valid, 10006 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-01-31 22:13:15,548 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1088 Valid, 470 Invalid, 10122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [116 Valid, 10006 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-01-31 22:13:15,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8753 states. [2022-01-31 22:13:16,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8753 to 7550. [2022-01-31 22:13:16,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7550 states, 7545 states have (on average 1.434857521537442) internal successors, (10826), 7545 states have internal predecessors, (10826), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:13:16,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7550 states to 7550 states and 10830 transitions. [2022-01-31 22:13:16,573 INFO L78 Accepts]: Start accepts. Automaton has 7550 states and 10830 transitions. Word has length 215 [2022-01-31 22:13:16,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:13:16,573 INFO L470 AbstractCegarLoop]: Abstraction has 7550 states and 10830 transitions. [2022-01-31 22:13:16,573 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 33 states have (on average 5.393939393939394) internal successors, (178), 32 states have internal predecessors, (178), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:13:16,573 INFO L276 IsEmpty]: Start isEmpty. Operand 7550 states and 10830 transitions. [2022-01-31 22:13:16,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2022-01-31 22:13:16,579 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:13:16,579 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:13:16,579 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-01-31 22:13:16,579 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:13:16,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:13:16,580 INFO L85 PathProgramCache]: Analyzing trace with hash 1129360435, now seen corresponding path program 1 times [2022-01-31 22:13:16,580 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:13:16,580 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [279606213] [2022-01-31 22:13:16,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:13:16,683 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:13:16,791 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:13:17,213 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 7 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=5, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:13:17,304 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:13:17,304 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:13:17,387 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:13:17,840 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 7 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=5, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:13:17,841 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:13:17,901 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:13:18,311 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 8 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=6, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:13:18,393 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:13:18,810 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 7 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=5, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:13:18,922 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:13:18,922 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:13:18,922 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:13:18,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:13:19,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:13:19,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:13:19,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:13:20,131 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:13:20,131 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [279606213] [2022-01-31 22:13:20,131 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [279606213] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:13:20,131 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:13:20,132 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [] total 34 [2022-01-31 22:13:20,132 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681471652] [2022-01-31 22:13:20,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:13:20,132 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-01-31 22:13:20,132 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:13:20,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-01-31 22:13:20,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=214, Invalid=1118, Unknown=0, NotChecked=0, Total=1332 [2022-01-31 22:13:20,133 INFO L87 Difference]: Start difference. First operand 7550 states and 10830 transitions. Second operand has 34 states, 33 states have (on average 6.393939393939394) internal successors, (211), 32 states have internal predecessors, (211), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:13:25,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:13:25,847 INFO L93 Difference]: Finished difference Result 15621 states and 22249 transitions. [2022-01-31 22:13:25,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-01-31 22:13:25,847 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 33 states have (on average 6.393939393939394) internal successors, (211), 32 states have internal predecessors, (211), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 217 [2022-01-31 22:13:25,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:13:25,858 INFO L225 Difference]: With dead ends: 15621 [2022-01-31 22:13:25,858 INFO L226 Difference]: Without dead ends: 8252 [2022-01-31 22:13:25,866 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1622 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=734, Invalid=4668, Unknown=0, NotChecked=0, Total=5402 [2022-01-31 22:13:25,867 INFO L933 BasicCegarLoop]: 403 mSDtfsCounter, 1134 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 10615 mSolverCounterSat, 168 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1134 SdHoareTripleChecker+Valid, 450 SdHoareTripleChecker+Invalid, 10783 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 168 IncrementalHoareTripleChecker+Valid, 10615 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-01-31 22:13:25,867 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1134 Valid, 450 Invalid, 10783 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [168 Valid, 10615 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-01-31 22:13:25,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8252 states. [2022-01-31 22:13:26,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8252 to 7526. [2022-01-31 22:13:26,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7526 states, 7521 states have (on average 1.4338518813987502) internal successors, (10784), 7521 states have internal predecessors, (10784), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:13:26,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7526 states to 7526 states and 10788 transitions. [2022-01-31 22:13:26,951 INFO L78 Accepts]: Start accepts. Automaton has 7526 states and 10788 transitions. Word has length 217 [2022-01-31 22:13:26,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:13:26,952 INFO L470 AbstractCegarLoop]: Abstraction has 7526 states and 10788 transitions. [2022-01-31 22:13:26,952 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 33 states have (on average 6.393939393939394) internal successors, (211), 32 states have internal predecessors, (211), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:13:26,952 INFO L276 IsEmpty]: Start isEmpty. Operand 7526 states and 10788 transitions. [2022-01-31 22:13:26,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2022-01-31 22:13:26,957 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:13:26,957 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:13:26,958 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-01-31 22:13:26,958 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:13:26,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:13:26,958 INFO L85 PathProgramCache]: Analyzing trace with hash 1230025527, now seen corresponding path program 1 times [2022-01-31 22:13:26,958 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:13:26,958 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [181412633] [2022-01-31 22:13:26,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:13:30,115 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 8 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=8}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:13:30,221 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:13:30,344 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 7 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=5, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:13:30,461 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 7 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=7}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:13:30,462 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:13:33,599 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 8 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=6, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:13:33,718 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 7 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=7}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:13:33,718 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:13:33,776 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:13:36,902 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 8 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=6, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:13:37,018 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 7 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=5, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:13:40,141 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 9 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=7, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:13:40,249 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:13:40,249 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:13:40,249 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:13:40,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:13:40,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:13:40,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:13:40,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:13:42,898 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:13:42,899 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [181412633] [2022-01-31 22:13:42,899 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [181412633] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:13:42,899 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:13:42,899 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [33] imperfect sequences [] total 33 [2022-01-31 22:13:42,899 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392334079] [2022-01-31 22:13:42,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:13:42,899 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2022-01-31 22:13:42,899 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:13:42,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2022-01-31 22:13:42,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=145, Invalid=1045, Unknown=0, NotChecked=0, Total=1190 [2022-01-31 22:13:42,900 INFO L87 Difference]: Start difference. First operand 7526 states and 10788 transitions. Second operand has 33 states, 32 states have (on average 6.59375) internal successors, (211), 31 states have internal predecessors, (211), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:13:46,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:13:46,824 INFO L93 Difference]: Finished difference Result 16066 states and 23108 transitions. [2022-01-31 22:13:46,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-01-31 22:13:46,824 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 32 states have (on average 6.59375) internal successors, (211), 31 states have internal predecessors, (211), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 217 [2022-01-31 22:13:46,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:13:46,840 INFO L225 Difference]: With dead ends: 16066 [2022-01-31 22:13:46,840 INFO L226 Difference]: Without dead ends: 8721 [2022-01-31 22:13:46,853 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 75 SyntacticMatches, 72 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2562 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=452, Invalid=3708, Unknown=0, NotChecked=0, Total=4160 [2022-01-31 22:13:46,854 INFO L933 BasicCegarLoop]: 200 mSDtfsCounter, 1015 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 4899 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1015 SdHoareTripleChecker+Valid, 257 SdHoareTripleChecker+Invalid, 4960 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 4899 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-01-31 22:13:46,854 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1015 Valid, 257 Invalid, 4960 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 4899 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-01-31 22:13:46,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8721 states. [2022-01-31 22:13:47,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8721 to 7526. [2022-01-31 22:13:47,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7526 states, 7521 states have (on average 1.4338518813987502) internal successors, (10784), 7521 states have internal predecessors, (10784), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:13:47,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7526 states to 7526 states and 10788 transitions. [2022-01-31 22:13:47,929 INFO L78 Accepts]: Start accepts. Automaton has 7526 states and 10788 transitions. Word has length 217 [2022-01-31 22:13:47,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:13:47,930 INFO L470 AbstractCegarLoop]: Abstraction has 7526 states and 10788 transitions. [2022-01-31 22:13:47,930 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 32 states have (on average 6.59375) internal successors, (211), 31 states have internal predecessors, (211), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:13:47,930 INFO L276 IsEmpty]: Start isEmpty. Operand 7526 states and 10788 transitions. [2022-01-31 22:13:47,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2022-01-31 22:13:47,934 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:13:47,935 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:13:47,935 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-01-31 22:13:47,935 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:13:47,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:13:47,935 INFO L85 PathProgramCache]: Analyzing trace with hash 300571857, now seen corresponding path program 1 times [2022-01-31 22:13:47,935 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:13:47,935 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1854041344] [2022-01-31 22:13:47,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:13:48,115 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 7 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=7}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:13:51,256 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 8 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=8}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:13:51,359 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:13:51,445 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:13:51,446 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:13:51,600 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 7 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=7}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:13:54,832 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 8 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=6, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:13:54,832 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:13:54,890 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:13:54,890 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:13:54,890 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:13:54,891 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:13:54,891 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:13:55,383 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 7 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=5, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:13:55,484 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:13:55,485 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:13:55,485 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:13:55,485 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:13:55,485 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:13:55,485 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:13:55,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:13:55,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:13:55,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:13:55,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:13:57,338 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:13:57,339 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1854041344] [2022-01-31 22:13:57,339 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1854041344] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:13:57,339 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:13:57,339 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [] total 34 [2022-01-31 22:13:57,339 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685163386] [2022-01-31 22:13:57,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:13:57,342 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-01-31 22:13:57,342 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:13:57,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-01-31 22:13:57,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=132, Invalid=990, Unknown=0, NotChecked=0, Total=1122 [2022-01-31 22:13:57,343 INFO L87 Difference]: Start difference. First operand 7526 states and 10788 transitions. Second operand has 34 states, 33 states have (on average 5.515151515151516) internal successors, (182), 32 states have internal predecessors, (182), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:14:02,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:14:02,088 INFO L93 Difference]: Finished difference Result 21194 states and 30622 transitions. [2022-01-31 22:14:02,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-01-31 22:14:02,089 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 33 states have (on average 5.515151515151516) internal successors, (182), 32 states have internal predecessors, (182), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 219 [2022-01-31 22:14:02,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:14:02,110 INFO L225 Difference]: With dead ends: 21194 [2022-01-31 22:14:02,111 INFO L226 Difference]: Without dead ends: 13849 [2022-01-31 22:14:02,119 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 107 SyntacticMatches, 43 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1596 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=448, Invalid=3712, Unknown=0, NotChecked=0, Total=4160 [2022-01-31 22:14:02,120 INFO L933 BasicCegarLoop]: 197 mSDtfsCounter, 1003 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 5204 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1003 SdHoareTripleChecker+Valid, 279 SdHoareTripleChecker+Invalid, 5241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 5204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-01-31 22:14:02,120 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1003 Valid, 279 Invalid, 5241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 5204 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-01-31 22:14:02,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13849 states. [2022-01-31 22:14:03,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13849 to 7590. [2022-01-31 22:14:03,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7590 states, 7585 states have (on average 1.4300593276203033) internal successors, (10847), 7585 states have internal predecessors, (10847), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:14:03,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7590 states to 7590 states and 10851 transitions. [2022-01-31 22:14:03,272 INFO L78 Accepts]: Start accepts. Automaton has 7590 states and 10851 transitions. Word has length 219 [2022-01-31 22:14:03,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:14:03,273 INFO L470 AbstractCegarLoop]: Abstraction has 7590 states and 10851 transitions. [2022-01-31 22:14:03,273 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 33 states have (on average 5.515151515151516) internal successors, (182), 32 states have internal predecessors, (182), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:14:03,273 INFO L276 IsEmpty]: Start isEmpty. Operand 7590 states and 10851 transitions. [2022-01-31 22:14:03,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2022-01-31 22:14:03,277 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:14:03,278 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:14:03,278 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-01-31 22:14:03,278 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:14:03,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:14:03,278 INFO L85 PathProgramCache]: Analyzing trace with hash -160011380, now seen corresponding path program 2 times [2022-01-31 22:14:03,278 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:14:03,278 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [447550714] [2022-01-31 22:14:03,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:14:03,421 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 7 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=5, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:14:06,573 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 8 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=6, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:14:06,704 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 7 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=5, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:14:06,806 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:14:06,806 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:14:06,935 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 7 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=7}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:14:10,103 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 8 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=8}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:14:10,104 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:14:10,166 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:14:10,167 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:14:10,167 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:14:10,167 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:14:10,167 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:14:10,167 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:14:10,167 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:14:10,292 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:14:10,292 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:14:10,292 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:14:10,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:14:10,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:14:10,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:14:10,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:14:13,184 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:14:13,184 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [447550714] [2022-01-31 22:14:13,184 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [447550714] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:14:13,184 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:14:13,185 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [36] imperfect sequences [] total 36 [2022-01-31 22:14:13,185 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428649596] [2022-01-31 22:14:13,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:14:13,185 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2022-01-31 22:14:13,185 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:14:13,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2022-01-31 22:14:13,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=147, Invalid=1185, Unknown=0, NotChecked=0, Total=1332 [2022-01-31 22:14:13,186 INFO L87 Difference]: Start difference. First operand 7590 states and 10851 transitions. Second operand has 36 states, 35 states have (on average 6.114285714285714) internal successors, (214), 34 states have internal predecessors, (214), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:14:18,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:14:18,780 INFO L93 Difference]: Finished difference Result 20617 states and 29758 transitions. [2022-01-31 22:14:18,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-01-31 22:14:18,780 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 35 states have (on average 6.114285714285714) internal successors, (214), 34 states have internal predecessors, (214), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 220 [2022-01-31 22:14:18,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:14:18,797 INFO L225 Difference]: With dead ends: 20617 [2022-01-31 22:14:18,797 INFO L226 Difference]: Without dead ends: 13282 [2022-01-31 22:14:18,805 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 76 SyntacticMatches, 72 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2301 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=485, Invalid=4345, Unknown=0, NotChecked=0, Total=4830 [2022-01-31 22:14:18,805 INFO L933 BasicCegarLoop]: 200 mSDtfsCounter, 1013 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 6827 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1013 SdHoareTripleChecker+Valid, 277 SdHoareTripleChecker+Invalid, 6899 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 6827 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-01-31 22:14:18,806 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1013 Valid, 277 Invalid, 6899 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 6827 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-01-31 22:14:18,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13282 states. [2022-01-31 22:14:20,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13282 to 7588. [2022-01-31 22:14:20,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7588 states, 7583 states have (on average 1.430172754846367) internal successors, (10845), 7583 states have internal predecessors, (10845), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:14:20,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7588 states to 7588 states and 10849 transitions. [2022-01-31 22:14:20,029 INFO L78 Accepts]: Start accepts. Automaton has 7588 states and 10849 transitions. Word has length 220 [2022-01-31 22:14:20,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:14:20,030 INFO L470 AbstractCegarLoop]: Abstraction has 7588 states and 10849 transitions. [2022-01-31 22:14:20,030 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 35 states have (on average 6.114285714285714) internal successors, (214), 34 states have internal predecessors, (214), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:14:20,030 INFO L276 IsEmpty]: Start isEmpty. Operand 7588 states and 10849 transitions. [2022-01-31 22:14:20,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2022-01-31 22:14:20,034 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:14:20,034 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:14:20,034 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-01-31 22:14:20,034 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:14:20,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:14:20,034 INFO L85 PathProgramCache]: Analyzing trace with hash -736616459, now seen corresponding path program 1 times [2022-01-31 22:14:20,035 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:14:20,035 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1763612913] [2022-01-31 22:14:20,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:14:21,168 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:14:21,168 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:14:21,168 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:14:21,169 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:14:21,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:14:21,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:14:21,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:14:21,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:14:21,206 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:14:21,206 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1763612913] [2022-01-31 22:14:21,206 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1763612913] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:14:21,206 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:14:21,207 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 22:14:21,207 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667454809] [2022-01-31 22:14:21,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:14:21,207 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 22:14:21,207 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:14:21,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 22:14:21,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 22:14:21,208 INFO L87 Difference]: Start difference. First operand 7588 states and 10849 transitions. Second operand has 4 states, 4 states have (on average 28.25) internal successors, (113), 3 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) [2022-01-31 22:14:22,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:14:22,520 INFO L93 Difference]: Finished difference Result 13386 states and 19393 transitions. [2022-01-31 22:14:22,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 22:14:22,520 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.25) internal successors, (113), 3 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 247 [2022-01-31 22:14:22,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:14:22,527 INFO L225 Difference]: With dead ends: 13386 [2022-01-31 22:14:22,527 INFO L226 Difference]: Without dead ends: 6045 [2022-01-31 22:14:22,533 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-31 22:14:22,534 INFO L933 BasicCegarLoop]: 174 mSDtfsCounter, 360 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 360 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-31 22:14:22,534 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [360 Valid, 181 Invalid, 224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-31 22:14:22,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6045 states. [2022-01-31 22:14:23,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6045 to 5830. [2022-01-31 22:14:23,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5830 states, 5825 states have (on average 1.3637768240343349) internal successors, (7944), 5825 states have internal predecessors, (7944), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:14:23,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5830 states to 5830 states and 7948 transitions. [2022-01-31 22:14:23,478 INFO L78 Accepts]: Start accepts. Automaton has 5830 states and 7948 transitions. Word has length 247 [2022-01-31 22:14:23,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:14:23,478 INFO L470 AbstractCegarLoop]: Abstraction has 5830 states and 7948 transitions. [2022-01-31 22:14:23,478 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.25) internal successors, (113), 3 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) [2022-01-31 22:14:23,479 INFO L276 IsEmpty]: Start isEmpty. Operand 5830 states and 7948 transitions. [2022-01-31 22:14:23,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2022-01-31 22:14:23,482 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:14:23,482 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:14:23,482 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-01-31 22:14:23,482 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:14:23,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:14:23,483 INFO L85 PathProgramCache]: Analyzing trace with hash -1430071145, now seen corresponding path program 1 times [2022-01-31 22:14:23,483 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:14:23,483 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1130203642] [2022-01-31 22:14:23,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:14:24,530 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 9 HavocedVariables, 0 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:14:24,530 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2022-01-31 22:14:24,530 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:14:24,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:14:24,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:14:24,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:14:24,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:14:24,568 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:14:24,568 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1130203642] [2022-01-31 22:14:24,568 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1130203642] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:14:24,569 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:14:24,569 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 22:14:24,569 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467189123] [2022-01-31 22:14:24,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:14:24,569 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 22:14:24,569 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:14:24,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 22:14:24,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 22:14:24,570 INFO L87 Difference]: Start difference. First operand 5830 states and 7948 transitions. Second operand has 4 states, 4 states have (on average 25.25) internal successors, (101), 3 states have internal predecessors, (101), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:14:26,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:14:26,594 INFO L93 Difference]: Finished difference Result 16872 states and 23104 transitions. [2022-01-31 22:14:26,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 22:14:26,594 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.25) internal successors, (101), 3 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 252 [2022-01-31 22:14:26,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:14:26,607 INFO L225 Difference]: With dead ends: 16872 [2022-01-31 22:14:26,607 INFO L226 Difference]: Without dead ends: 11295 [2022-01-31 22:14:26,612 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-31 22:14:26,613 INFO L933 BasicCegarLoop]: 356 mSDtfsCounter, 379 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 379 SdHoareTripleChecker+Valid, 363 SdHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-31 22:14:26,613 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [379 Valid, 363 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-31 22:14:26,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11295 states. [2022-01-31 22:14:27,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11295 to 5846. [2022-01-31 22:14:27,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5846 states, 5841 states have (on average 1.3627803458311933) internal successors, (7960), 5841 states have internal predecessors, (7960), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:14:27,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5846 states to 5846 states and 7964 transitions. [2022-01-31 22:14:27,630 INFO L78 Accepts]: Start accepts. Automaton has 5846 states and 7964 transitions. Word has length 252 [2022-01-31 22:14:27,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:14:27,630 INFO L470 AbstractCegarLoop]: Abstraction has 5846 states and 7964 transitions. [2022-01-31 22:14:27,630 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.25) internal successors, (101), 3 states have internal predecessors, (101), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:14:27,630 INFO L276 IsEmpty]: Start isEmpty. Operand 5846 states and 7964 transitions. [2022-01-31 22:14:27,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2022-01-31 22:14:27,634 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:14:27,634 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:14:27,634 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-01-31 22:14:27,634 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:14:27,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:14:27,634 INFO L85 PathProgramCache]: Analyzing trace with hash 108275064, now seen corresponding path program 1 times [2022-01-31 22:14:27,634 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:14:27,635 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1457050519] [2022-01-31 22:14:27,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:14:28,901 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 9 HavocedVariables, 0 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:14:28,902 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2022-01-31 22:14:28,902 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:14:28,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:14:28,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:14:28,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:14:28,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:14:28,936 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:14:28,936 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1457050519] [2022-01-31 22:14:28,936 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1457050519] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:14:28,936 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:14:28,937 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 22:14:28,937 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399731887] [2022-01-31 22:14:28,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:14:28,937 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 22:14:28,937 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:14:28,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 22:14:28,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 22:14:28,938 INFO L87 Difference]: Start difference. First operand 5846 states and 7964 transitions. Second operand has 4 states, 4 states have (on average 30.75) internal successors, (123), 3 states have internal predecessors, (123), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:14:30,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:14:30,243 INFO L93 Difference]: Finished difference Result 11999 states and 16448 transitions. [2022-01-31 22:14:30,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 22:14:30,243 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.75) internal successors, (123), 3 states have internal predecessors, (123), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 252 [2022-01-31 22:14:30,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:14:30,251 INFO L225 Difference]: With dead ends: 11999 [2022-01-31 22:14:30,251 INFO L226 Difference]: Without dead ends: 6406 [2022-01-31 22:14:30,261 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-31 22:14:30,261 INFO L933 BasicCegarLoop]: 213 mSDtfsCounter, 227 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 227 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-31 22:14:30,262 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [227 Valid, 220 Invalid, 226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-31 22:14:30,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6406 states. [2022-01-31 22:14:31,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6406 to 6278. [2022-01-31 22:14:31,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6278 states, 6273 states have (on average 1.3505499760879962) internal successors, (8472), 6273 states have internal predecessors, (8472), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:14:31,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6278 states to 6278 states and 8476 transitions. [2022-01-31 22:14:31,367 INFO L78 Accepts]: Start accepts. Automaton has 6278 states and 8476 transitions. Word has length 252 [2022-01-31 22:14:31,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:14:31,368 INFO L470 AbstractCegarLoop]: Abstraction has 6278 states and 8476 transitions. [2022-01-31 22:14:31,368 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.75) internal successors, (123), 3 states have internal predecessors, (123), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:14:31,368 INFO L276 IsEmpty]: Start isEmpty. Operand 6278 states and 8476 transitions. [2022-01-31 22:14:31,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2022-01-31 22:14:31,371 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:14:31,371 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 7, 7, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:14:31,371 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-01-31 22:14:31,371 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:14:31,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:14:31,372 INFO L85 PathProgramCache]: Analyzing trace with hash -610536732, now seen corresponding path program 1 times [2022-01-31 22:14:31,372 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:14:31,372 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [628020463] [2022-01-31 22:14:31,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:14:32,681 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 9 HavocedVariables, 0 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:14:32,682 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2022-01-31 22:14:32,682 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:14:32,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:14:32,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:14:32,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:14:32,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:14:32,720 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:14:32,720 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [628020463] [2022-01-31 22:14:32,720 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [628020463] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:14:32,720 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:14:32,720 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 22:14:32,720 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921442328] [2022-01-31 22:14:32,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:14:32,721 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 22:14:32,721 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:14:32,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 22:14:32,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 22:14:32,721 INFO L87 Difference]: Start difference. First operand 6278 states and 8476 transitions. Second operand has 4 states, 4 states have (on average 32.25) internal successors, (129), 3 states have internal predecessors, (129), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:14:34,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:14:34,107 INFO L93 Difference]: Finished difference Result 12799 states and 17360 transitions. [2022-01-31 22:14:34,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 22:14:34,107 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.25) internal successors, (129), 3 states have internal predecessors, (129), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 275 [2022-01-31 22:14:34,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:14:34,115 INFO L225 Difference]: With dead ends: 12799 [2022-01-31 22:14:34,115 INFO L226 Difference]: Without dead ends: 6774 [2022-01-31 22:14:34,120 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-31 22:14:34,121 INFO L933 BasicCegarLoop]: 213 mSDtfsCounter, 208 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 208 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-31 22:14:34,122 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [208 Valid, 220 Invalid, 230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-31 22:14:34,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6774 states. [2022-01-31 22:14:35,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6774 to 6742. [2022-01-31 22:14:35,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6742 states, 6737 states have (on average 1.338281134035921) internal successors, (9016), 6737 states have internal predecessors, (9016), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:14:35,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6742 states to 6742 states and 9020 transitions. [2022-01-31 22:14:35,246 INFO L78 Accepts]: Start accepts. Automaton has 6742 states and 9020 transitions. Word has length 275 [2022-01-31 22:14:35,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:14:35,247 INFO L470 AbstractCegarLoop]: Abstraction has 6742 states and 9020 transitions. [2022-01-31 22:14:35,247 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.25) internal successors, (129), 3 states have internal predecessors, (129), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:14:35,247 INFO L276 IsEmpty]: Start isEmpty. Operand 6742 states and 9020 transitions. [2022-01-31 22:14:35,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2022-01-31 22:14:35,250 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:14:35,250 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:14:35,251 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-01-31 22:14:35,251 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:14:35,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:14:35,251 INFO L85 PathProgramCache]: Analyzing trace with hash 1723839995, now seen corresponding path program 1 times [2022-01-31 22:14:35,251 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:14:35,251 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1425633479] [2022-01-31 22:14:35,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:14:35,746 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 7 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=5, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:14:35,831 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:14:35,921 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:14:36,036 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:14:36,093 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:14:36,118 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 3 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=1, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:14:36,118 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:14:36,185 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:14:36,619 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 7 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=5, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:14:36,620 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:14:36,692 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:14:36,753 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:14:36,782 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 3 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=1, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:14:37,202 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 8 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=6, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:14:37,274 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:14:37,724 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 7 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=5, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:14:37,829 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:14:37,829 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:14:37,829 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:14:37,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:14:37,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:14:37,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:14:37,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:14:39,037 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:14:39,037 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1425633479] [2022-01-31 22:14:39,038 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1425633479] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:14:39,038 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:14:39,038 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [37] imperfect sequences [] total 37 [2022-01-31 22:14:39,038 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902436508] [2022-01-31 22:14:39,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:14:39,038 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2022-01-31 22:14:39,038 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:14:39,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2022-01-31 22:14:39,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=239, Invalid=1243, Unknown=0, NotChecked=0, Total=1482 [2022-01-31 22:14:39,039 INFO L87 Difference]: Start difference. First operand 6742 states and 9020 transitions. Second operand has 37 states, 37 states have (on average 6.0) internal successors, (222), 36 states have internal predecessors, (222), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:14:42,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:14:42,965 INFO L93 Difference]: Finished difference Result 14126 states and 18955 transitions. [2022-01-31 22:14:42,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-01-31 22:14:42,966 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 37 states have (on average 6.0) internal successors, (222), 36 states have internal predecessors, (222), 1 states have call successors, (3), 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 284 [2022-01-31 22:14:42,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:14:42,975 INFO L225 Difference]: With dead ends: 14126 [2022-01-31 22:14:42,975 INFO L226 Difference]: Without dead ends: 7637 [2022-01-31 22:14:42,984 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 279 GetRequests, 208 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1677 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=651, Invalid=4605, Unknown=0, NotChecked=0, Total=5256 [2022-01-31 22:14:42,985 INFO L933 BasicCegarLoop]: 170 mSDtfsCounter, 711 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 4956 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 711 SdHoareTripleChecker+Valid, 177 SdHoareTripleChecker+Invalid, 4996 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 4956 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-01-31 22:14:42,985 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [711 Valid, 177 Invalid, 4996 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 4956 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-01-31 22:14:42,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7637 states. [2022-01-31 22:14:44,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7637 to 6854. [2022-01-31 22:14:44,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6854 states, 6849 states have (on average 1.3328953131844066) internal successors, (9129), 6849 states have internal predecessors, (9129), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:14:44,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6854 states to 6854 states and 9133 transitions. [2022-01-31 22:14:44,161 INFO L78 Accepts]: Start accepts. Automaton has 6854 states and 9133 transitions. Word has length 284 [2022-01-31 22:14:44,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:14:44,161 INFO L470 AbstractCegarLoop]: Abstraction has 6854 states and 9133 transitions. [2022-01-31 22:14:44,161 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 6.0) internal successors, (222), 36 states have internal predecessors, (222), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:14:44,161 INFO L276 IsEmpty]: Start isEmpty. Operand 6854 states and 9133 transitions. [2022-01-31 22:14:44,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2022-01-31 22:14:44,166 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:14:44,166 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:14:44,166 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-01-31 22:14:44,166 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:14:44,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:14:44,166 INFO L85 PathProgramCache]: Analyzing trace with hash -1364026700, now seen corresponding path program 1 times [2022-01-31 22:14:44,166 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:14:44,167 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [809712332] [2022-01-31 22:14:44,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:14:45,482 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 9 HavocedVariables, 0 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:14:45,483 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2022-01-31 22:14:45,483 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:14:45,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:14:45,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:14:45,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:14:45,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:14:45,517 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:14:45,517 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [809712332] [2022-01-31 22:14:45,517 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [809712332] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:14:45,517 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:14:45,517 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 22:14:45,517 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054040240] [2022-01-31 22:14:45,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:14:45,518 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 22:14:45,518 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:14:45,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 22:14:45,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 22:14:45,518 INFO L87 Difference]: Start difference. First operand 6854 states and 9133 transitions. Second operand has 4 states, 4 states have (on average 30.0) internal successors, (120), 3 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:14:46,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:14:46,588 INFO L93 Difference]: Finished difference Result 10800 states and 14472 transitions. [2022-01-31 22:14:46,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 22:14:46,588 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.0) internal successors, (120), 3 states have internal predecessors, (120), 1 states have call successors, (3), 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 285 [2022-01-31 22:14:46,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:14:46,594 INFO L225 Difference]: With dead ends: 10800 [2022-01-31 22:14:46,594 INFO L226 Difference]: Without dead ends: 4311 [2022-01-31 22:14:46,601 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 200 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-31 22:14:46,601 INFO L933 BasicCegarLoop]: 212 mSDtfsCounter, 248 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 215 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 248 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-31 22:14:46,602 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [248 Valid, 219 Invalid, 222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 215 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-31 22:14:46,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4311 states. [2022-01-31 22:14:47,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4311 to 4120. [2022-01-31 22:14:47,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4120 states, 4115 states have (on average 1.3217496962332929) internal successors, (5439), 4115 states have internal predecessors, (5439), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:14:47,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4120 states to 4120 states and 5443 transitions. [2022-01-31 22:14:47,370 INFO L78 Accepts]: Start accepts. Automaton has 4120 states and 5443 transitions. Word has length 285 [2022-01-31 22:14:47,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:14:47,370 INFO L470 AbstractCegarLoop]: Abstraction has 4120 states and 5443 transitions. [2022-01-31 22:14:47,370 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.0) internal successors, (120), 3 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:14:47,370 INFO L276 IsEmpty]: Start isEmpty. Operand 4120 states and 5443 transitions. [2022-01-31 22:14:47,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 288 [2022-01-31 22:14:47,373 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:14:47,373 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:14:47,373 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-01-31 22:14:47,373 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:14:47,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:14:47,374 INFO L85 PathProgramCache]: Analyzing trace with hash -1786178306, now seen corresponding path program 1 times [2022-01-31 22:14:47,374 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:14:47,374 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [582863059] [2022-01-31 22:14:47,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:14:47,475 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:14:47,582 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:14:48,019 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 7 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=5, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:14:48,103 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:14:48,162 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:14:48,187 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 3 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=1, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:14:48,187 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:14:48,269 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:14:48,705 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 7 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=5, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:14:48,706 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:14:48,789 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:14:48,846 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:14:48,871 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 3 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=1, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:14:49,300 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 8 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=6, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:14:49,380 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:14:49,815 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 7 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=5, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:14:49,918 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:14:49,918 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:14:49,918 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:14:49,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:14:49,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:14:49,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:14:49,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:14:51,284 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:14:51,284 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [582863059] [2022-01-31 22:14:51,284 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [582863059] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:14:51,284 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:14:51,284 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [40] imperfect sequences [] total 40 [2022-01-31 22:14:51,284 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779007449] [2022-01-31 22:14:51,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:14:51,285 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2022-01-31 22:14:51,285 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:14:51,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2022-01-31 22:14:51,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=255, Invalid=1467, Unknown=0, NotChecked=0, Total=1722 [2022-01-31 22:14:51,286 INFO L87 Difference]: Start difference. First operand 4120 states and 5443 transitions. Second operand has 40 states, 40 states have (on average 5.625) internal successors, (225), 39 states have internal predecessors, (225), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:14:55,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:14:55,575 INFO L93 Difference]: Finished difference Result 8562 states and 11371 transitions. [2022-01-31 22:14:55,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-01-31 22:14:55,575 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 40 states have (on average 5.625) internal successors, (225), 39 states have internal predecessors, (225), 1 states have call successors, (3), 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 287 [2022-01-31 22:14:55,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:14:55,580 INFO L225 Difference]: With dead ends: 8562 [2022-01-31 22:14:55,580 INFO L226 Difference]: Without dead ends: 4728 [2022-01-31 22:14:55,584 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 285 GetRequests, 208 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1984 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=696, Invalid=5466, Unknown=0, NotChecked=0, Total=6162 [2022-01-31 22:14:55,584 INFO L933 BasicCegarLoop]: 201 mSDtfsCounter, 682 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 6787 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 682 SdHoareTripleChecker+Valid, 243 SdHoareTripleChecker+Invalid, 6825 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 6787 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-01-31 22:14:55,585 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [682 Valid, 243 Invalid, 6825 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 6787 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-01-31 22:14:55,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4728 states. [2022-01-31 22:14:56,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4728 to 4233. [2022-01-31 22:14:56,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4233 states, 4228 states have (on average 1.3133869441816461) internal successors, (5553), 4228 states have internal predecessors, (5553), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:14:56,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4233 states to 4233 states and 5557 transitions. [2022-01-31 22:14:56,336 INFO L78 Accepts]: Start accepts. Automaton has 4233 states and 5557 transitions. Word has length 287 [2022-01-31 22:14:56,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:14:56,336 INFO L470 AbstractCegarLoop]: Abstraction has 4233 states and 5557 transitions. [2022-01-31 22:14:56,336 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 40 states have (on average 5.625) internal successors, (225), 39 states have internal predecessors, (225), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:14:56,336 INFO L276 IsEmpty]: Start isEmpty. Operand 4233 states and 5557 transitions. [2022-01-31 22:14:56,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 288 [2022-01-31 22:14:56,339 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:14:56,339 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 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] [2022-01-31 22:14:56,339 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-01-31 22:14:56,339 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:14:56,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:14:56,340 INFO L85 PathProgramCache]: Analyzing trace with hash 1890624454, now seen corresponding path program 2 times [2022-01-31 22:14:56,340 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:14:56,340 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [146493391] [2022-01-31 22:14:56,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:14:56,388 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 3 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=1, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:14:56,836 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 7 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=5, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:14:56,904 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:14:56,977 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:14:57,082 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:14:57,139 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:14:57,139 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:14:57,209 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:14:57,277 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:14:57,702 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 7 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=5, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:14:57,703 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:14:57,760 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:14:57,786 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 3 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=1, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:14:58,207 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 8 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=6, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:14:58,277 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:14:58,348 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:14:58,772 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 7 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=5, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:14:58,896 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:14:58,897 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:14:58,897 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:14:58,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:14:58,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:14:58,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:14:58,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:15:00,347 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:15:00,347 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [146493391] [2022-01-31 22:15:00,348 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [146493391] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:15:00,348 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:15:00,348 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [36] imperfect sequences [] total 36 [2022-01-31 22:15:00,348 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698331857] [2022-01-31 22:15:00,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:15:00,348 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2022-01-31 22:15:00,348 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:15:00,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2022-01-31 22:15:00,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=1129, Unknown=0, NotChecked=0, Total=1260 [2022-01-31 22:15:00,349 INFO L87 Difference]: Start difference. First operand 4233 states and 5557 transitions. Second operand has 36 states, 35 states have (on average 7.142857142857143) internal successors, (250), 34 states have internal predecessors, (250), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:15:05,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:15:05,131 INFO L93 Difference]: Finished difference Result 9804 states and 13091 transitions. [2022-01-31 22:15:05,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-01-31 22:15:05,132 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 35 states have (on average 7.142857142857143) internal successors, (250), 34 states have internal predecessors, (250), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 287 [2022-01-31 22:15:05,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:15:05,139 INFO L225 Difference]: With dead ends: 9804 [2022-01-31 22:15:05,139 INFO L226 Difference]: Without dead ends: 5970 [2022-01-31 22:15:05,143 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 283 GetRequests, 216 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1188 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=449, Invalid=4243, Unknown=0, NotChecked=0, Total=4692 [2022-01-31 22:15:05,144 INFO L933 BasicCegarLoop]: 173 mSDtfsCounter, 1119 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 7710 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1119 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 7760 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 7710 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-01-31 22:15:05,144 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1119 Valid, 220 Invalid, 7760 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 7710 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-01-31 22:15:05,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5970 states. [2022-01-31 22:15:05,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5970 to 4264. [2022-01-31 22:15:05,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4264 states, 4259 states have (on average 1.311340690302888) internal successors, (5585), 4259 states have internal predecessors, (5585), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:15:05,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4264 states to 4264 states and 5589 transitions. [2022-01-31 22:15:05,969 INFO L78 Accepts]: Start accepts. Automaton has 4264 states and 5589 transitions. Word has length 287 [2022-01-31 22:15:05,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:15:05,969 INFO L470 AbstractCegarLoop]: Abstraction has 4264 states and 5589 transitions. [2022-01-31 22:15:05,970 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 35 states have (on average 7.142857142857143) internal successors, (250), 34 states have internal predecessors, (250), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:15:05,970 INFO L276 IsEmpty]: Start isEmpty. Operand 4264 states and 5589 transitions. [2022-01-31 22:15:05,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 288 [2022-01-31 22:15:05,972 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:15:05,973 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:15:05,973 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-01-31 22:15:05,973 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:15:05,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:15:05,973 INFO L85 PathProgramCache]: Analyzing trace with hash -635524862, now seen corresponding path program 1 times [2022-01-31 22:15:05,973 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:15:05,973 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [873264865] [2022-01-31 22:15:05,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:15:09,342 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 8 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=8}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:15:09,482 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 7 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=5, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:15:09,596 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:15:09,654 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:15:09,694 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 3 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=1, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:15:09,821 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 7 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=5, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:15:09,821 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:15:13,167 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 8 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=6, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:15:13,168 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:15:13,168 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:15:13,168 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:15:13,228 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:15:13,285 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:15:13,310 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 3 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=1, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:15:13,310 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:15:13,310 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:15:13,311 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:15:13,311 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:15:16,623 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 9 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=7, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:15:16,734 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:15:16,734 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:15:16,735 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:15:16,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:15:16,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:15:16,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:15:16,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:15:19,663 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:15:19,663 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [873264865] [2022-01-31 22:15:19,663 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [873264865] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:15:19,663 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:15:19,663 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [40] imperfect sequences [] total 40 [2022-01-31 22:15:19,663 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972258695] [2022-01-31 22:15:19,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:15:19,665 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2022-01-31 22:15:19,665 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:15:19,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2022-01-31 22:15:19,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=214, Invalid=1426, Unknown=0, NotChecked=0, Total=1640 [2022-01-31 22:15:19,666 INFO L87 Difference]: Start difference. First operand 4264 states and 5589 transitions. Second operand has 40 states, 40 states have (on average 5.625) internal successors, (225), 39 states have internal predecessors, (225), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:15:23,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:15:23,910 INFO L93 Difference]: Finished difference Result 8195 states and 10848 transitions. [2022-01-31 22:15:23,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-01-31 22:15:23,911 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 40 states have (on average 5.625) internal successors, (225), 39 states have internal predecessors, (225), 1 states have call successors, (3), 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 287 [2022-01-31 22:15:23,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:15:23,917 INFO L225 Difference]: With dead ends: 8195 [2022-01-31 22:15:23,917 INFO L226 Difference]: Without dead ends: 4361 [2022-01-31 22:15:23,921 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 285 GetRequests, 133 SyntacticMatches, 76 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3798 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=611, Invalid=5395, Unknown=0, NotChecked=0, Total=6006 [2022-01-31 22:15:23,921 INFO L933 BasicCegarLoop]: 212 mSDtfsCounter, 650 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 6336 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 650 SdHoareTripleChecker+Valid, 284 SdHoareTripleChecker+Invalid, 6365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 6336 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-01-31 22:15:23,922 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [650 Valid, 284 Invalid, 6365 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 6336 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-01-31 22:15:23,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4361 states. [2022-01-31 22:15:24,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4361 to 4312. [2022-01-31 22:15:24,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4312 states, 4307 states have (on average 1.3078709078244717) internal successors, (5633), 4307 states have internal predecessors, (5633), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:15:24,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4312 states to 4312 states and 5637 transitions. [2022-01-31 22:15:24,768 INFO L78 Accepts]: Start accepts. Automaton has 4312 states and 5637 transitions. Word has length 287 [2022-01-31 22:15:24,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:15:24,768 INFO L470 AbstractCegarLoop]: Abstraction has 4312 states and 5637 transitions. [2022-01-31 22:15:24,768 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 40 states have (on average 5.625) internal successors, (225), 39 states have internal predecessors, (225), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:15:24,768 INFO L276 IsEmpty]: Start isEmpty. Operand 4312 states and 5637 transitions. [2022-01-31 22:15:24,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 289 [2022-01-31 22:15:24,772 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:15:24,772 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 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] [2022-01-31 22:15:24,772 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-01-31 22:15:24,773 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:15:24,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:15:24,773 INFO L85 PathProgramCache]: Analyzing trace with hash 378149373, now seen corresponding path program 1 times [2022-01-31 22:15:24,773 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:15:24,773 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [525221847] [2022-01-31 22:15:24,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:15:25,215 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 7 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=5, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:15:25,287 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:15:25,388 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 5 AssignedVariables, 2 ReadonlyVariables, Eigenvalues: {0={1=3, 2=1}, 1={1=3}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:15:25,461 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:15:25,568 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:15:25,626 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:15:25,626 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:15:25,714 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:15:25,801 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:15:26,418 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 7 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=5, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:15:26,418 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:15:26,490 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:15:27,039 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 8 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=6, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:15:27,110 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:15:27,182 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:15:27,273 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 5 AssignedVariables, 2 ReadonlyVariables, Eigenvalues: {0={1=3, 2=1}, 1={1=3}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:15:27,701 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 7 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=5, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:15:27,806 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:15:27,806 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:15:27,806 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:15:27,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:15:27,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:15:27,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:15:27,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:15:29,318 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:15:29,318 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [525221847] [2022-01-31 22:15:29,318 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [525221847] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:15:29,318 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:15:29,318 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [37] imperfect sequences [] total 37 [2022-01-31 22:15:29,318 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9515860] [2022-01-31 22:15:29,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:15:29,319 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2022-01-31 22:15:29,319 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:15:29,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2022-01-31 22:15:29,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=187, Invalid=1373, Unknown=0, NotChecked=0, Total=1560 [2022-01-31 22:15:29,319 INFO L87 Difference]: Start difference. First operand 4312 states and 5637 transitions. Second operand has 37 states, 36 states have (on average 6.972222222222222) internal successors, (251), 35 states have internal predecessors, (251), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:15:33,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:15:33,744 INFO L93 Difference]: Finished difference Result 8650 states and 11460 transitions. [2022-01-31 22:15:33,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-01-31 22:15:33,744 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 36 states have (on average 6.972222222222222) internal successors, (251), 35 states have internal predecessors, (251), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 288 [2022-01-31 22:15:33,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:15:33,750 INFO L225 Difference]: With dead ends: 8650 [2022-01-31 22:15:33,750 INFO L226 Difference]: Without dead ends: 4816 [2022-01-31 22:15:33,753 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 285 GetRequests, 213 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1641 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=555, Invalid=4847, Unknown=0, NotChecked=0, Total=5402 [2022-01-31 22:15:33,754 INFO L933 BasicCegarLoop]: 172 mSDtfsCounter, 1123 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 6936 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1123 SdHoareTripleChecker+Valid, 279 SdHoareTripleChecker+Invalid, 6986 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 6936 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-01-31 22:15:33,754 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1123 Valid, 279 Invalid, 6986 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 6936 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-01-31 22:15:33,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4816 states. [2022-01-31 22:15:34,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4816 to 4313. [2022-01-31 22:15:34,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4313 states, 4308 states have (on average 1.307799442896936) internal successors, (5634), 4308 states have internal predecessors, (5634), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:15:34,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4313 states to 4313 states and 5638 transitions. [2022-01-31 22:15:34,591 INFO L78 Accepts]: Start accepts. Automaton has 4313 states and 5638 transitions. Word has length 288 [2022-01-31 22:15:34,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:15:34,591 INFO L470 AbstractCegarLoop]: Abstraction has 4313 states and 5638 transitions. [2022-01-31 22:15:34,591 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 36 states have (on average 6.972222222222222) internal successors, (251), 35 states have internal predecessors, (251), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:15:34,591 INFO L276 IsEmpty]: Start isEmpty. Operand 4313 states and 5638 transitions. [2022-01-31 22:15:34,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2022-01-31 22:15:34,595 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:15:34,595 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:15:34,595 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-01-31 22:15:34,595 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:15:34,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:15:34,595 INFO L85 PathProgramCache]: Analyzing trace with hash -2049120873, now seen corresponding path program 1 times [2022-01-31 22:15:34,595 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:15:34,595 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2028558677] [2022-01-31 22:15:34,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:15:34,740 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 7 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=7}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:15:34,873 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 7 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=7}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:15:38,210 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 8 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=6, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:15:38,330 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:15:38,387 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:15:38,411 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 3 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=1, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:15:38,411 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:15:38,542 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 7 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=5, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:15:41,882 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 8 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=6, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:15:41,883 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:15:41,941 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:15:42,002 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:15:42,027 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 3 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=1, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:15:42,027 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:15:42,027 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:15:42,028 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:15:42,028 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:15:45,372 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 8 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=6, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:15:45,477 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:15:45,477 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:15:45,477 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:15:45,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:15:45,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:15:45,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:15:45,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:15:48,767 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:15:48,767 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2028558677] [2022-01-31 22:15:48,768 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [2028558677] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:15:48,768 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:15:48,768 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [43] imperfect sequences [] total 43 [2022-01-31 22:15:48,768 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915434229] [2022-01-31 22:15:48,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:15:48,768 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2022-01-31 22:15:48,768 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:15:48,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2022-01-31 22:15:48,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=214, Invalid=1592, Unknown=0, NotChecked=0, Total=1806 [2022-01-31 22:15:48,769 INFO L87 Difference]: Start difference. First operand 4313 states and 5638 transitions. Second operand has 43 states, 43 states have (on average 5.3023255813953485) internal successors, (228), 42 states have internal predecessors, (228), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:15:53,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:15:53,676 INFO L93 Difference]: Finished difference Result 9892 states and 13176 transitions. [2022-01-31 22:15:53,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-01-31 22:15:53,677 INFO L78 Accepts]: Start accepts. Automaton has has 43 states, 43 states have (on average 5.3023255813953485) internal successors, (228), 42 states have internal predecessors, (228), 1 states have call successors, (3), 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 290 [2022-01-31 22:15:53,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:15:53,684 INFO L225 Difference]: With dead ends: 9892 [2022-01-31 22:15:53,684 INFO L226 Difference]: Without dead ends: 6058 [2022-01-31 22:15:53,689 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 291 GetRequests, 134 SyntacticMatches, 76 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3477 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=636, Invalid=6170, Unknown=0, NotChecked=0, Total=6806 [2022-01-31 22:15:53,689 INFO L933 BasicCegarLoop]: 203 mSDtfsCounter, 664 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 6977 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 664 SdHoareTripleChecker+Valid, 260 SdHoareTripleChecker+Invalid, 7011 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 6977 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-01-31 22:15:53,690 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [664 Valid, 260 Invalid, 7011 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 6977 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-01-31 22:15:53,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6058 states. [2022-01-31 22:15:54,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6058 to 4313. [2022-01-31 22:15:54,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4313 states, 4308 states have (on average 1.307799442896936) internal successors, (5634), 4308 states have internal predecessors, (5634), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:15:54,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4313 states to 4313 states and 5638 transitions. [2022-01-31 22:15:54,574 INFO L78 Accepts]: Start accepts. Automaton has 4313 states and 5638 transitions. Word has length 290 [2022-01-31 22:15:54,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:15:54,574 INFO L470 AbstractCegarLoop]: Abstraction has 4313 states and 5638 transitions. [2022-01-31 22:15:54,574 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 43 states have (on average 5.3023255813953485) internal successors, (228), 42 states have internal predecessors, (228), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:15:54,575 INFO L276 IsEmpty]: Start isEmpty. Operand 4313 states and 5638 transitions. [2022-01-31 22:15:54,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2022-01-31 22:15:54,577 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:15:54,577 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:15:54,578 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-01-31 22:15:54,578 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:15:54,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:15:54,578 INFO L85 PathProgramCache]: Analyzing trace with hash -1229947259, now seen corresponding path program 3 times [2022-01-31 22:15:54,578 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:15:54,578 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [448579753] [2022-01-31 22:15:54,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:15:54,632 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 3 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=1, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:15:55,062 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 7 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=5, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:15:55,133 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:15:55,203 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:15:55,314 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:15:55,404 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:15:55,404 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:15:55,452 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 3 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=1, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:15:55,541 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:15:55,630 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:15:56,195 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 7 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=5, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:15:56,196 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:15:56,231 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 3 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=1, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:15:56,289 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:15:56,708 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 8 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=6, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:15:56,779 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:15:56,848 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:15:57,276 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 7 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=5, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:15:57,381 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:15:57,382 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:15:57,382 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:15:57,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:15:57,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:15:57,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:15:57,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:15:59,999 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:15:59,999 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [448579753] [2022-01-31 22:15:59,999 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [448579753] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:15:59,999 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:15:59,999 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [44] imperfect sequences [] total 44 [2022-01-31 22:15:59,999 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090541666] [2022-01-31 22:15:59,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:16:00,000 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2022-01-31 22:16:00,000 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:16:00,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2022-01-31 22:16:00,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=261, Invalid=1809, Unknown=0, NotChecked=0, Total=2070 [2022-01-31 22:16:00,001 INFO L87 Difference]: Start difference. First operand 4313 states and 5638 transitions. Second operand has 44 states, 44 states have (on average 6.454545454545454) internal successors, (284), 43 states have internal predecessors, (284), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:16:05,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:16:05,003 INFO L93 Difference]: Finished difference Result 8683 states and 11519 transitions. [2022-01-31 22:16:05,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-01-31 22:16:05,004 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 44 states have (on average 6.454545454545454) internal successors, (284), 43 states have internal predecessors, (284), 1 states have call successors, (3), 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 290 [2022-01-31 22:16:05,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:16:05,011 INFO L225 Difference]: With dead ends: 8683 [2022-01-31 22:16:05,011 INFO L226 Difference]: Without dead ends: 4849 [2022-01-31 22:16:05,016 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 292 GetRequests, 177 SyntacticMatches, 30 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3453 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=717, Invalid=6765, Unknown=0, NotChecked=0, Total=7482 [2022-01-31 22:16:05,017 INFO L933 BasicCegarLoop]: 176 mSDtfsCounter, 746 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 7788 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 746 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 7853 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 7788 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-01-31 22:16:05,017 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [746 Valid, 208 Invalid, 7853 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 7788 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-01-31 22:16:05,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4849 states. [2022-01-31 22:16:05,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4849 to 4354. [2022-01-31 22:16:05,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4354 states, 4349 states have (on average 1.3048976776270407) internal successors, (5675), 4349 states have internal predecessors, (5675), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:16:05,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4354 states to 4354 states and 5679 transitions. [2022-01-31 22:16:05,917 INFO L78 Accepts]: Start accepts. Automaton has 4354 states and 5679 transitions. Word has length 290 [2022-01-31 22:16:05,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:16:05,917 INFO L470 AbstractCegarLoop]: Abstraction has 4354 states and 5679 transitions. [2022-01-31 22:16:05,917 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 44 states have (on average 6.454545454545454) internal successors, (284), 43 states have internal predecessors, (284), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:16:05,918 INFO L276 IsEmpty]: Start isEmpty. Operand 4354 states and 5679 transitions. [2022-01-31 22:16:05,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 292 [2022-01-31 22:16:05,922 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:16:05,922 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 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] [2022-01-31 22:16:05,923 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-01-31 22:16:05,923 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:16:05,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:16:05,923 INFO L85 PathProgramCache]: Analyzing trace with hash 662204300, now seen corresponding path program 2 times [2022-01-31 22:16:05,923 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:16:05,923 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1084427962] [2022-01-31 22:16:05,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:16:06,003 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 4 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=2, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:16:06,086 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:16:06,192 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:16:06,635 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 7 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=5, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:16:06,718 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:16:06,777 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:16:06,778 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:16:06,859 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:16:06,941 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:16:07,405 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 7 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=5, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:16:07,406 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:16:07,473 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:16:07,499 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 3 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=1, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:16:07,932 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 8 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=6, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:16:08,015 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:16:08,461 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 7 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=5, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:16:08,566 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:16:08,650 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:16:08,650 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:16:08,650 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:16:08,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:16:08,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:16:08,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:16:08,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:16:10,357 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:16:10,357 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1084427962] [2022-01-31 22:16:10,357 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1084427962] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:16:10,358 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:16:10,358 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [40] imperfect sequences [] total 40 [2022-01-31 22:16:10,358 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414547919] [2022-01-31 22:16:10,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:16:10,358 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2022-01-31 22:16:10,358 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:16:10,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2022-01-31 22:16:10,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=203, Invalid=1603, Unknown=0, NotChecked=0, Total=1806 [2022-01-31 22:16:10,359 INFO L87 Difference]: Start difference. First operand 4354 states and 5679 transitions. Second operand has 40 states, 39 states have (on average 6.512820512820513) internal successors, (254), 38 states have internal predecessors, (254), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:16:15,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:16:15,684 INFO L93 Difference]: Finished difference Result 8761 states and 11575 transitions. [2022-01-31 22:16:15,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-01-31 22:16:15,685 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 39 states have (on average 6.512820512820513) internal successors, (254), 38 states have internal predecessors, (254), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 291 [2022-01-31 22:16:15,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:16:15,692 INFO L225 Difference]: With dead ends: 8761 [2022-01-31 22:16:15,692 INFO L226 Difference]: Without dead ends: 4927 [2022-01-31 22:16:15,696 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 291 GetRequests, 213 SyntacticMatches, 0 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1920 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=606, Invalid=5714, Unknown=0, NotChecked=0, Total=6320 [2022-01-31 22:16:15,697 INFO L933 BasicCegarLoop]: 204 mSDtfsCounter, 1070 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 8565 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1070 SdHoareTripleChecker+Valid, 286 SdHoareTripleChecker+Invalid, 8622 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 8565 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-01-31 22:16:15,697 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1070 Valid, 286 Invalid, 8622 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 8565 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-01-31 22:16:15,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4927 states. [2022-01-31 22:16:16,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4927 to 4430. [2022-01-31 22:16:16,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4430 states, 4425 states have (on average 1.2998870056497176) internal successors, (5752), 4425 states have internal predecessors, (5752), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:16:16,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4430 states to 4430 states and 5756 transitions. [2022-01-31 22:16:16,619 INFO L78 Accepts]: Start accepts. Automaton has 4430 states and 5756 transitions. Word has length 291 [2022-01-31 22:16:16,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:16:16,620 INFO L470 AbstractCegarLoop]: Abstraction has 4430 states and 5756 transitions. [2022-01-31 22:16:16,620 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 39 states have (on average 6.512820512820513) internal successors, (254), 38 states have internal predecessors, (254), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:16:16,620 INFO L276 IsEmpty]: Start isEmpty. Operand 4430 states and 5756 transitions. [2022-01-31 22:16:16,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 292 [2022-01-31 22:16:16,623 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:16:16,623 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:16:16,623 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-01-31 22:16:16,623 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:16:16,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:16:16,624 INFO L85 PathProgramCache]: Analyzing trace with hash -873182994, now seen corresponding path program 2 times [2022-01-31 22:16:16,624 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:16:16,624 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1426092272] [2022-01-31 22:16:16,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:16:17,068 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 7 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=5, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:16:17,139 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:16:17,242 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 5 AssignedVariables, 2 ReadonlyVariables, Eigenvalues: {0={1=3, 2=1}, 1={1=3}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:16:17,327 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:16:17,469 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:16:17,556 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:16:17,557 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:16:17,644 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:16:17,776 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 5 AssignedVariables, 2 ReadonlyVariables, Eigenvalues: {0={1=3, 2=1}, 1={1=3}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:16:17,863 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:16:18,497 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 7 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=5, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:16:18,497 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:16:18,557 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:16:18,976 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 8 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=6, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:16:19,045 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:16:19,130 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:16:19,575 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 7 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=5, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:16:19,678 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:16:19,791 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 5 AssignedVariables, 2 ReadonlyVariables, Eigenvalues: {0={1=3, 2=1}, 1={1=3}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:16:19,791 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:16:19,791 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:16:19,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:16:19,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:16:19,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:16:19,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:16:22,643 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:16:22,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1426092272] [2022-01-31 22:16:22,644 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1426092272] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:16:22,644 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:16:22,644 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [41] imperfect sequences [] total 41 [2022-01-31 22:16:22,645 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444444019] [2022-01-31 22:16:22,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:16:22,645 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2022-01-31 22:16:22,645 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:16:22,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2022-01-31 22:16:22,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=199, Invalid=1693, Unknown=0, NotChecked=0, Total=1892 [2022-01-31 22:16:22,646 INFO L87 Difference]: Start difference. First operand 4430 states and 5756 transitions. Second operand has 41 states, 40 states have (on average 7.125) internal successors, (285), 39 states have internal predecessors, (285), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:16:28,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:16:28,570 INFO L93 Difference]: Finished difference Result 8795 states and 11632 transitions. [2022-01-31 22:16:28,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-01-31 22:16:28,571 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 40 states have (on average 7.125) internal successors, (285), 39 states have internal predecessors, (285), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 291 [2022-01-31 22:16:28,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:16:28,577 INFO L225 Difference]: With dead ends: 8795 [2022-01-31 22:16:28,577 INFO L226 Difference]: Without dead ends: 4961 [2022-01-31 22:16:28,582 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 292 GetRequests, 183 SyntacticMatches, 29 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2903 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=599, Invalid=6043, Unknown=0, NotChecked=0, Total=6642 [2022-01-31 22:16:28,583 INFO L933 BasicCegarLoop]: 173 mSDtfsCounter, 1140 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 10241 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1140 SdHoareTripleChecker+Valid, 280 SdHoareTripleChecker+Invalid, 10316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 10241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-01-31 22:16:28,583 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1140 Valid, 280 Invalid, 10316 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 10241 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-01-31 22:16:28,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4961 states. [2022-01-31 22:16:29,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4961 to 4425. [2022-01-31 22:16:29,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4425 states, 4420 states have (on average 1.3002262443438914) internal successors, (5747), 4420 states have internal predecessors, (5747), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:16:29,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4425 states to 4425 states and 5751 transitions. [2022-01-31 22:16:29,500 INFO L78 Accepts]: Start accepts. Automaton has 4425 states and 5751 transitions. Word has length 291 [2022-01-31 22:16:29,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:16:29,500 INFO L470 AbstractCegarLoop]: Abstraction has 4425 states and 5751 transitions. [2022-01-31 22:16:29,500 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 40 states have (on average 7.125) internal successors, (285), 39 states have internal predecessors, (285), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:16:29,500 INFO L276 IsEmpty]: Start isEmpty. Operand 4425 states and 5751 transitions. [2022-01-31 22:16:29,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 292 [2022-01-31 22:16:29,504 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:16:29,504 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 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] [2022-01-31 22:16:29,504 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-01-31 22:16:29,504 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:16:29,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:16:29,505 INFO L85 PathProgramCache]: Analyzing trace with hash 648142356, now seen corresponding path program 2 times [2022-01-31 22:16:29,505 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:16:29,505 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1227104589] [2022-01-31 22:16:29,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:16:29,519 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:16:29,519 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:16:29,519 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:16:29,520 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:16:29,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:16:29,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:16:29,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:16:29,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:16:29,562 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:16:29,562 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1227104589] [2022-01-31 22:16:29,562 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1227104589] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:16:29,562 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:16:29,562 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 22:16:29,563 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746850717] [2022-01-31 22:16:29,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:16:29,563 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 22:16:29,563 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:16:29,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 22:16:29,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 22:16:29,564 INFO L87 Difference]: Start difference. First operand 4425 states and 5751 transitions. Second operand has 4 states, 4 states have (on average 34.25) internal successors, (137), 3 states have internal predecessors, (137), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:16:31,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:16:31,271 INFO L93 Difference]: Finished difference Result 11224 states and 14788 transitions. [2022-01-31 22:16:31,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 22:16:31,272 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.25) internal successors, (137), 3 states have internal predecessors, (137), 1 states have call successors, (3), 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 291 [2022-01-31 22:16:31,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:16:31,281 INFO L225 Difference]: With dead ends: 11224 [2022-01-31 22:16:31,281 INFO L226 Difference]: Without dead ends: 7390 [2022-01-31 22:16:31,286 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-31 22:16:31,286 INFO L933 BasicCegarLoop]: 340 mSDtfsCounter, 353 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 353 SdHoareTripleChecker+Valid, 347 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-31 22:16:31,286 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [353 Valid, 347 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-31 22:16:31,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7390 states. [2022-01-31 22:16:32,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7390 to 7388. [2022-01-31 22:16:32,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7388 states, 7383 states have (on average 1.2914804280102938) internal successors, (9535), 7383 states have internal predecessors, (9535), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:16:32,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7388 states to 7388 states and 9539 transitions. [2022-01-31 22:16:32,789 INFO L78 Accepts]: Start accepts. Automaton has 7388 states and 9539 transitions. Word has length 291 [2022-01-31 22:16:32,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:16:32,789 INFO L470 AbstractCegarLoop]: Abstraction has 7388 states and 9539 transitions. [2022-01-31 22:16:32,789 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.25) internal successors, (137), 3 states have internal predecessors, (137), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:16:32,789 INFO L276 IsEmpty]: Start isEmpty. Operand 7388 states and 9539 transitions. [2022-01-31 22:16:32,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 295 [2022-01-31 22:16:32,794 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:16:32,794 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 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] [2022-01-31 22:16:32,794 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-01-31 22:16:32,794 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:16:32,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:16:32,795 INFO L85 PathProgramCache]: Analyzing trace with hash 184151404, now seen corresponding path program 1 times [2022-01-31 22:16:32,795 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:16:32,795 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1588576131] [2022-01-31 22:16:32,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:16:32,850 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 4 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=4}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:16:32,911 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:16:36,280 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 8 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=6, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:16:36,401 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 7 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=7}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:16:36,509 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:16:36,629 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 7 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=5, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:16:36,629 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:16:36,629 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:16:36,629 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:16:36,745 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 7 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=5, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:16:36,861 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 7 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=5, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:16:36,861 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:16:36,894 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 3 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=1, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:16:40,320 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 8 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=6, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:16:40,321 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:16:40,321 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:16:40,436 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 7 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=5, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:16:40,436 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:16:40,436 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:16:40,497 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:16:40,605 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:16:40,606 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:16:40,606 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:16:40,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:16:40,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:16:40,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:16:40,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:16:44,311 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:16:44,311 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1588576131] [2022-01-31 22:16:44,311 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1588576131] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:16:44,311 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:16:44,311 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [39] imperfect sequences [] total 39 [2022-01-31 22:16:44,311 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752247718] [2022-01-31 22:16:44,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:16:44,311 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2022-01-31 22:16:44,311 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:16:44,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2022-01-31 22:16:44,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=226, Invalid=1496, Unknown=0, NotChecked=0, Total=1722 [2022-01-31 22:16:44,312 INFO L87 Difference]: Start difference. First operand 7388 states and 9539 transitions. Second operand has 39 states, 38 states have (on average 6.7368421052631575) internal successors, (256), 37 states have internal predecessors, (256), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:16:49,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:16:49,947 INFO L93 Difference]: Finished difference Result 11307 states and 14713 transitions. [2022-01-31 22:16:49,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-01-31 22:16:49,947 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 38 states have (on average 6.7368421052631575) internal successors, (256), 37 states have internal predecessors, (256), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 294 [2022-01-31 22:16:49,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:16:49,955 INFO L225 Difference]: With dead ends: 11307 [2022-01-31 22:16:49,956 INFO L226 Difference]: Without dead ends: 7515 [2022-01-31 22:16:49,959 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 300 GetRequests, 126 SyntacticMatches, 98 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3957 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=654, Invalid=5352, Unknown=0, NotChecked=0, Total=6006 [2022-01-31 22:16:49,960 INFO L933 BasicCegarLoop]: 181 mSDtfsCounter, 783 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 8040 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 783 SdHoareTripleChecker+Valid, 228 SdHoareTripleChecker+Invalid, 8132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 8040 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-01-31 22:16:49,960 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [783 Valid, 228 Invalid, 8132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 8040 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-01-31 22:16:49,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7515 states. [2022-01-31 22:16:51,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7515 to 7453. [2022-01-31 22:16:51,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7453 states, 7448 states have (on average 1.292561761546724) internal successors, (9627), 7448 states have internal predecessors, (9627), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:16:51,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7453 states to 7453 states and 9631 transitions. [2022-01-31 22:16:51,532 INFO L78 Accepts]: Start accepts. Automaton has 7453 states and 9631 transitions. Word has length 294 [2022-01-31 22:16:51,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:16:51,533 INFO L470 AbstractCegarLoop]: Abstraction has 7453 states and 9631 transitions. [2022-01-31 22:16:51,533 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 38 states have (on average 6.7368421052631575) internal successors, (256), 37 states have internal predecessors, (256), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:16:51,533 INFO L276 IsEmpty]: Start isEmpty. Operand 7453 states and 9631 transitions. [2022-01-31 22:16:51,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2022-01-31 22:16:51,537 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:16:51,537 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 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] [2022-01-31 22:16:51,538 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-01-31 22:16:51,538 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:16:51,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:16:51,538 INFO L85 PathProgramCache]: Analyzing trace with hash -2145503831, now seen corresponding path program 1 times [2022-01-31 22:16:51,538 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:16:51,538 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1021949418] [2022-01-31 22:16:51,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:16:51,976 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 2 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=3}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:16:52,089 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:16:52,170 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:16:52,723 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 7 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=5, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:16:52,816 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:16:52,926 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:16:52,926 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:16:53,003 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:16:53,439 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 7 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=5, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:16:53,515 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:16:53,515 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:16:53,948 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 8 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=6, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:16:54,039 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 5 AssignedVariables, 2 ReadonlyVariables, Eigenvalues: {0={1=3, 2=1}, 1={1=3}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:16:54,119 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:16:54,181 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:16:54,621 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 7 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=5, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:16:54,726 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:16:54,835 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:16:54,836 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:16:54,836 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:16:54,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:16:54,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:16:54,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:16:54,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:16:57,389 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:16:57,389 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1021949418] [2022-01-31 22:16:57,389 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1021949418] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:16:57,389 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:16:57,390 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [46] imperfect sequences [] total 46 [2022-01-31 22:16:57,390 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87596636] [2022-01-31 22:16:57,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:16:57,390 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2022-01-31 22:16:57,390 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:16:57,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2022-01-31 22:16:57,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=302, Invalid=2050, Unknown=0, NotChecked=0, Total=2352 [2022-01-31 22:16:57,391 INFO L87 Difference]: Start difference. First operand 7453 states and 9631 transitions. Second operand has 46 states, 46 states have (on average 5.586956521739131) internal successors, (257), 45 states have internal predecessors, (257), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:17:01,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:17:01,557 INFO L93 Difference]: Finished difference Result 11260 states and 14649 transitions. [2022-01-31 22:17:01,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-01-31 22:17:01,558 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 46 states have (on average 5.586956521739131) internal successors, (257), 45 states have internal predecessors, (257), 1 states have call successors, (3), 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 295 [2022-01-31 22:17:01,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:17:01,567 INFO L225 Difference]: With dead ends: 11260 [2022-01-31 22:17:01,567 INFO L226 Difference]: Without dead ends: 7468 [2022-01-31 22:17:01,571 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 293 GetRequests, 215 SyntacticMatches, 0 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2210 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=578, Invalid=5742, Unknown=0, NotChecked=0, Total=6320 [2022-01-31 22:17:01,572 INFO L933 BasicCegarLoop]: 210 mSDtfsCounter, 264 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 4298 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 264 SdHoareTripleChecker+Valid, 297 SdHoareTripleChecker+Invalid, 5556 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 4298 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1219 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-01-31 22:17:01,572 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [264 Valid, 297 Invalid, 5556 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 4298 Invalid, 0 Unknown, 1219 Unchecked, 1.6s Time] [2022-01-31 22:17:01,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7468 states. [2022-01-31 22:17:03,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7468 to 7454. [2022-01-31 22:17:03,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7454 states, 7449 states have (on average 1.2925224862397637) internal successors, (9628), 7449 states have internal predecessors, (9628), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:17:03,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7454 states to 7454 states and 9632 transitions. [2022-01-31 22:17:03,156 INFO L78 Accepts]: Start accepts. Automaton has 7454 states and 9632 transitions. Word has length 295 [2022-01-31 22:17:03,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:17:03,156 INFO L470 AbstractCegarLoop]: Abstraction has 7454 states and 9632 transitions. [2022-01-31 22:17:03,156 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 46 states have (on average 5.586956521739131) internal successors, (257), 45 states have internal predecessors, (257), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:17:03,157 INFO L276 IsEmpty]: Start isEmpty. Operand 7454 states and 9632 transitions. [2022-01-31 22:17:03,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2022-01-31 22:17:03,162 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:17:03,163 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 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] [2022-01-31 22:17:03,163 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-01-31 22:17:03,163 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:17:03,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:17:03,163 INFO L85 PathProgramCache]: Analyzing trace with hash -664985551, now seen corresponding path program 1 times [2022-01-31 22:17:03,163 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:17:03,163 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [780406104] [2022-01-31 22:17:03,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:17:03,620 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 6 AssignedVariables, 2 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=3}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:17:03,682 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:17:03,682 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:17:03,682 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:17:03,804 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 7 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=5, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:17:03,912 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:17:03,912 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:17:03,913 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:17:03,913 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:17:07,245 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 8 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=6, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:17:07,381 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 7 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=7}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:17:07,497 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 7 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=7}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:17:07,497 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:17:10,823 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 8 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=6, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:17:10,947 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 7 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=5, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:17:11,061 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 7 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=5, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:17:14,398 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 9 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=7, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:17:14,488 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 5 AssignedVariables, 2 ReadonlyVariables, Eigenvalues: {0={1=3, 2=1}, 1={1=3}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:17:14,549 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:17:14,656 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:17:14,656 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:17:14,656 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:17:14,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:17:14,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:17:14,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:17:14,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:17:18,506 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:17:18,506 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [780406104] [2022-01-31 22:17:18,507 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [780406104] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:17:18,507 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:17:18,507 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [42] imperfect sequences [] total 42 [2022-01-31 22:17:18,507 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551873889] [2022-01-31 22:17:18,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:17:18,508 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2022-01-31 22:17:18,508 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:17:18,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2022-01-31 22:17:18,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=222, Invalid=1758, Unknown=0, NotChecked=0, Total=1980 [2022-01-31 22:17:18,509 INFO L87 Difference]: Start difference. First operand 7454 states and 9632 transitions. Second operand has 42 states, 41 states have (on average 6.2682926829268295) internal successors, (257), 40 states have internal predecessors, (257), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:17:24,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:17:24,677 INFO L93 Difference]: Finished difference Result 11406 states and 14835 transitions. [2022-01-31 22:17:24,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-01-31 22:17:24,677 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 41 states have (on average 6.2682926829268295) internal successors, (257), 40 states have internal predecessors, (257), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 295 [2022-01-31 22:17:24,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:17:24,686 INFO L225 Difference]: With dead ends: 11406 [2022-01-31 22:17:24,686 INFO L226 Difference]: Without dead ends: 7586 [2022-01-31 22:17:24,690 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 299 GetRequests, 119 SyntacticMatches, 98 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4627 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=663, Invalid=6309, Unknown=0, NotChecked=0, Total=6972 [2022-01-31 22:17:24,690 INFO L933 BasicCegarLoop]: 213 mSDtfsCounter, 1238 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 8553 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1238 SdHoareTripleChecker+Valid, 320 SdHoareTripleChecker+Invalid, 8600 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 8553 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-01-31 22:17:24,690 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1238 Valid, 320 Invalid, 8600 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 8553 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-01-31 22:17:24,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7586 states. [2022-01-31 22:17:26,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7586 to 7447. [2022-01-31 22:17:26,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7447 states, 7442 states have (on average 1.292260145122279) internal successors, (9617), 7442 states have internal predecessors, (9617), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:17:26,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7447 states to 7447 states and 9621 transitions. [2022-01-31 22:17:26,209 INFO L78 Accepts]: Start accepts. Automaton has 7447 states and 9621 transitions. Word has length 295 [2022-01-31 22:17:26,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:17:26,209 INFO L470 AbstractCegarLoop]: Abstraction has 7447 states and 9621 transitions. [2022-01-31 22:17:26,209 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 41 states have (on average 6.2682926829268295) internal successors, (257), 40 states have internal predecessors, (257), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:17:26,209 INFO L276 IsEmpty]: Start isEmpty. Operand 7447 states and 9621 transitions. [2022-01-31 22:17:26,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2022-01-31 22:17:26,213 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:17:26,213 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:17:26,214 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-01-31 22:17:26,214 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:17:26,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:17:26,214 INFO L85 PathProgramCache]: Analyzing trace with hash 1717809468, now seen corresponding path program 1 times [2022-01-31 22:17:26,214 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:17:26,214 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [246413048] [2022-01-31 22:17:26,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:17:26,280 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 4 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=2, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:17:26,361 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:17:26,862 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 7 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=5, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:17:26,944 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:17:27,043 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:17:27,164 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:17:27,165 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:17:27,241 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:17:27,673 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 7 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=5, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:17:27,722 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 4 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=2, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:17:27,797 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:17:27,798 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:17:27,850 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 4 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=2, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:17:28,278 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 8 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=6, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:17:28,359 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:17:28,421 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:17:28,878 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 7 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=5, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:17:28,963 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:17:29,071 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:17:29,071 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:17:29,071 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:17:29,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:17:29,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:17:29,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:17:29,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:17:32,165 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:17:32,165 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [246413048] [2022-01-31 22:17:32,165 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [246413048] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:17:32,165 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:17:32,165 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [49] imperfect sequences [] total 49 [2022-01-31 22:17:32,165 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527922627] [2022-01-31 22:17:32,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:17:32,166 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2022-01-31 22:17:32,166 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:17:32,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2022-01-31 22:17:32,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=318, Invalid=2334, Unknown=0, NotChecked=0, Total=2652 [2022-01-31 22:17:32,167 INFO L87 Difference]: Start difference. First operand 7447 states and 9621 transitions. Second operand has 49 states, 49 states have (on average 5.918367346938775) internal successors, (290), 48 states have internal predecessors, (290), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:17:39,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:17:39,216 INFO L93 Difference]: Finished difference Result 12201 states and 15886 transitions. [2022-01-31 22:17:39,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-01-31 22:17:39,217 INFO L78 Accepts]: Start accepts. Automaton has has 49 states, 49 states have (on average 5.918367346938775) internal successors, (290), 48 states have internal predecessors, (290), 1 states have call successors, (3), 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 297 [2022-01-31 22:17:39,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:17:39,226 INFO L225 Difference]: With dead ends: 12201 [2022-01-31 22:17:39,227 INFO L226 Difference]: Without dead ends: 8409 [2022-01-31 22:17:39,230 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 304 GetRequests, 177 SyntacticMatches, 31 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4397 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=847, Invalid=8659, Unknown=0, NotChecked=0, Total=9506 [2022-01-31 22:17:39,231 INFO L933 BasicCegarLoop]: 209 mSDtfsCounter, 710 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 10648 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 710 SdHoareTripleChecker+Valid, 306 SdHoareTripleChecker+Invalid, 10721 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 10648 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-01-31 22:17:39,231 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [710 Valid, 306 Invalid, 10721 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 10648 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2022-01-31 22:17:39,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8409 states. [2022-01-31 22:17:40,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8409 to 7452. [2022-01-31 22:17:40,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7452 states, 7447 states have (on average 1.2920639183563851) internal successors, (9622), 7447 states have internal predecessors, (9622), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:17:40,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7452 states to 7452 states and 9626 transitions. [2022-01-31 22:17:40,765 INFO L78 Accepts]: Start accepts. Automaton has 7452 states and 9626 transitions. Word has length 297 [2022-01-31 22:17:40,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:17:40,766 INFO L470 AbstractCegarLoop]: Abstraction has 7452 states and 9626 transitions. [2022-01-31 22:17:40,766 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 49 states have (on average 5.918367346938775) internal successors, (290), 48 states have internal predecessors, (290), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:17:40,766 INFO L276 IsEmpty]: Start isEmpty. Operand 7452 states and 9626 transitions. [2022-01-31 22:17:40,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2022-01-31 22:17:40,770 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:17:40,770 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:17:40,770 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-01-31 22:17:40,770 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:17:40,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:17:40,771 INFO L85 PathProgramCache]: Analyzing trace with hash 987384379, now seen corresponding path program 1 times [2022-01-31 22:17:40,771 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:17:40,771 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [479841172] [2022-01-31 22:17:40,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:17:40,956 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 7 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=7}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:17:41,026 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 4 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=2, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:17:41,107 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:17:41,278 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 7 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=5, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:17:44,898 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 8 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=8}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:17:45,007 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:17:45,007 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:17:45,133 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 7 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=7}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:17:45,134 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:17:45,134 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:17:45,260 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 7 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=5, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:17:45,261 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:17:45,291 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 3 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=1, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:17:48,636 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 9 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=7, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:17:48,762 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 7 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=5, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:17:48,823 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:17:48,824 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:17:48,824 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:17:48,905 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:17:49,021 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:17:49,021 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:17:52,373 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 8 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=6, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:17:52,500 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 7 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=5, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:17:52,500 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:17:52,500 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:17:52,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:17:52,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:17:52,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:17:52,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:17:55,551 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:17:55,551 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [479841172] [2022-01-31 22:17:55,551 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [479841172] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:17:55,551 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:17:55,551 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [40] imperfect sequences [] total 40 [2022-01-31 22:17:55,551 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894269702] [2022-01-31 22:17:55,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:17:55,551 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2022-01-31 22:17:55,551 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:17:55,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2022-01-31 22:17:55,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=316, Invalid=1576, Unknown=0, NotChecked=0, Total=1892 [2022-01-31 22:17:55,552 INFO L87 Difference]: Start difference. First operand 7452 states and 9626 transitions. Second operand has 40 states, 39 states have (on average 5.9743589743589745) internal successors, (233), 38 states have internal predecessors, (233), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:18:02,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:18:02,376 INFO L93 Difference]: Finished difference Result 13731 states and 17942 transitions. [2022-01-31 22:18:02,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-01-31 22:18:02,377 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 39 states have (on average 5.9743589743589745) internal successors, (233), 38 states have internal predecessors, (233), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 297 [2022-01-31 22:18:02,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:18:02,389 INFO L225 Difference]: With dead ends: 13731 [2022-01-31 22:18:02,389 INFO L226 Difference]: Without dead ends: 9939 [2022-01-31 22:18:02,395 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 301 GetRequests, 145 SyntacticMatches, 77 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4161 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=874, Invalid=5606, Unknown=0, NotChecked=0, Total=6480 [2022-01-31 22:18:02,395 INFO L933 BasicCegarLoop]: 231 mSDtfsCounter, 1360 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 9531 mSolverCounterSat, 124 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1360 SdHoareTripleChecker+Valid, 253 SdHoareTripleChecker+Invalid, 9655 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 124 IncrementalHoareTripleChecker+Valid, 9531 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-01-31 22:18:02,395 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1360 Valid, 253 Invalid, 9655 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [124 Valid, 9531 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-01-31 22:18:02,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9939 states. [2022-01-31 22:18:03,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9939 to 7455. [2022-01-31 22:18:03,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7455 states, 7450 states have (on average 1.2919463087248322) internal successors, (9625), 7450 states have internal predecessors, (9625), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:18:03,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7455 states to 7455 states and 9629 transitions. [2022-01-31 22:18:03,971 INFO L78 Accepts]: Start accepts. Automaton has 7455 states and 9629 transitions. Word has length 297 [2022-01-31 22:18:03,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:18:03,971 INFO L470 AbstractCegarLoop]: Abstraction has 7455 states and 9629 transitions. [2022-01-31 22:18:03,971 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 39 states have (on average 5.9743589743589745) internal successors, (233), 38 states have internal predecessors, (233), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:18:03,971 INFO L276 IsEmpty]: Start isEmpty. Operand 7455 states and 9629 transitions. [2022-01-31 22:18:03,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2022-01-31 22:18:03,976 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:18:03,976 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:18:03,976 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-01-31 22:18:03,976 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:18:03,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:18:03,977 INFO L85 PathProgramCache]: Analyzing trace with hash -119000248, now seen corresponding path program 2 times [2022-01-31 22:18:03,977 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:18:03,977 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1868701123] [2022-01-31 22:18:03,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:18:03,991 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:18:03,991 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:18:03,991 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:18:03,992 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:18:04,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:18:04,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:18:04,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:18:04,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:18:04,036 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:18:04,036 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1868701123] [2022-01-31 22:18:04,036 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1868701123] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:18:04,036 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:18:04,036 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 22:18:04,037 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229262720] [2022-01-31 22:18:04,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:18:04,037 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 22:18:04,037 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:18:04,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 22:18:04,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 22:18:04,037 INFO L87 Difference]: Start difference. First operand 7455 states and 9629 transitions. Second operand has 4 states, 4 states have (on average 36.25) internal successors, (145), 3 states have internal predecessors, (145), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:18:07,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:18:07,099 INFO L93 Difference]: Finished difference Result 20339 states and 26639 transitions. [2022-01-31 22:18:07,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 22:18:07,099 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 36.25) internal successors, (145), 3 states have internal predecessors, (145), 1 states have call successors, (3), 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 297 [2022-01-31 22:18:07,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:18:07,112 INFO L225 Difference]: With dead ends: 20339 [2022-01-31 22:18:07,112 INFO L226 Difference]: Without dead ends: 7393 [2022-01-31 22:18:07,124 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-31 22:18:07,125 INFO L933 BasicCegarLoop]: 347 mSDtfsCounter, 348 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 348 SdHoareTripleChecker+Valid, 354 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-31 22:18:07,125 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [348 Valid, 354 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 198 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-31 22:18:07,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7393 states. [2022-01-31 22:18:08,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7393 to 7076. [2022-01-31 22:18:08,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7076 states, 7071 states have (on average 1.324423702446613) internal successors, (9365), 7071 states have internal predecessors, (9365), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:18:08,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7076 states to 7076 states and 9369 transitions. [2022-01-31 22:18:08,546 INFO L78 Accepts]: Start accepts. Automaton has 7076 states and 9369 transitions. Word has length 297 [2022-01-31 22:18:08,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:18:08,546 INFO L470 AbstractCegarLoop]: Abstraction has 7076 states and 9369 transitions. [2022-01-31 22:18:08,546 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.25) internal successors, (145), 3 states have internal predecessors, (145), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:18:08,546 INFO L276 IsEmpty]: Start isEmpty. Operand 7076 states and 9369 transitions. [2022-01-31 22:18:08,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2022-01-31 22:18:08,549 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:18:08,549 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 8, 8, 7, 7, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:18:08,549 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-01-31 22:18:08,549 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:18:08,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:18:08,549 INFO L85 PathProgramCache]: Analyzing trace with hash 1647775100, now seen corresponding path program 1 times [2022-01-31 22:18:08,549 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:18:08,549 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2037975095] [2022-01-31 22:18:08,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:18:10,057 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 9 HavocedVariables, 0 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:18:10,057 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2022-01-31 22:18:10,057 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:18:10,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:18:10,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:18:10,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:18:10,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:18:10,101 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:18:10,101 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2037975095] [2022-01-31 22:18:10,101 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [2037975095] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:18:10,101 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:18:10,101 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 22:18:10,101 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287555941] [2022-01-31 22:18:10,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:18:10,102 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 22:18:10,102 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:18:10,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 22:18:10,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 22:18:10,102 INFO L87 Difference]: Start difference. First operand 7076 states and 9369 transitions. Second operand has 5 states, 5 states have (on average 34.6) internal successors, (173), 4 states have internal predecessors, (173), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:18:11,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:18:11,932 INFO L93 Difference]: Finished difference Result 14785 states and 19633 transitions. [2022-01-31 22:18:11,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-31 22:18:11,932 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 34.6) internal successors, (173), 4 states have internal predecessors, (173), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 308 [2022-01-31 22:18:11,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:18:11,943 INFO L225 Difference]: With dead ends: 14785 [2022-01-31 22:18:11,943 INFO L226 Difference]: Without dead ends: 7527 [2022-01-31 22:18:11,952 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-01-31 22:18:11,952 INFO L933 BasicCegarLoop]: 213 mSDtfsCounter, 543 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 317 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 543 SdHoareTripleChecker+Valid, 225 SdHoareTripleChecker+Invalid, 365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 317 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-31 22:18:11,953 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [543 Valid, 225 Invalid, 365 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 317 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-31 22:18:11,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7527 states. [2022-01-31 22:18:13,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7527 to 7094. [2022-01-31 22:18:13,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7094 states, 7089 states have (on average 1.315982508111158) internal successors, (9329), 7089 states have internal predecessors, (9329), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:18:13,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7094 states to 7094 states and 9333 transitions. [2022-01-31 22:18:13,446 INFO L78 Accepts]: Start accepts. Automaton has 7094 states and 9333 transitions. Word has length 308 [2022-01-31 22:18:13,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:18:13,446 INFO L470 AbstractCegarLoop]: Abstraction has 7094 states and 9333 transitions. [2022-01-31 22:18:13,446 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 34.6) internal successors, (173), 4 states have internal predecessors, (173), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:18:13,446 INFO L276 IsEmpty]: Start isEmpty. Operand 7094 states and 9333 transitions. [2022-01-31 22:18:13,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 340 [2022-01-31 22:18:13,449 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:18:13,449 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 9, 9, 8, 8, 7, 7, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:18:13,449 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-01-31 22:18:13,449 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:18:13,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:18:13,450 INFO L85 PathProgramCache]: Analyzing trace with hash -633719141, now seen corresponding path program 1 times [2022-01-31 22:18:13,450 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:18:13,450 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1377412882] [2022-01-31 22:18:13,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:18:15,140 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 9 HavocedVariables, 0 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:18:15,141 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2022-01-31 22:18:15,141 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:18:15,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:18:15,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:18:15,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:18:15,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:18:15,182 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:18:15,182 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1377412882] [2022-01-31 22:18:15,182 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1377412882] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:18:15,183 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:18:15,183 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 22:18:15,183 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453002372] [2022-01-31 22:18:15,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:18:15,183 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 22:18:15,183 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:18:15,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 22:18:15,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 22:18:15,184 INFO L87 Difference]: Start difference. First operand 7094 states and 9333 transitions. Second operand has 4 states, 4 states have (on average 38.0) internal successors, (152), 3 states have internal predecessors, (152), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:18:16,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:18:16,971 INFO L93 Difference]: Finished difference Result 14777 states and 19476 transitions. [2022-01-31 22:18:16,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 22:18:16,971 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.0) internal successors, (152), 3 states have internal predecessors, (152), 1 states have call successors, (3), 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 339 [2022-01-31 22:18:16,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:18:16,981 INFO L225 Difference]: With dead ends: 14777 [2022-01-31 22:18:16,981 INFO L226 Difference]: Without dead ends: 7697 [2022-01-31 22:18:16,987 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-31 22:18:16,988 INFO L933 BasicCegarLoop]: 208 mSDtfsCounter, 210 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 222 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 210 SdHoareTripleChecker+Valid, 215 SdHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-31 22:18:16,988 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [210 Valid, 215 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 222 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-31 22:18:16,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7697 states. [2022-01-31 22:18:18,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7697 to 7661. [2022-01-31 22:18:18,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7661 states, 7656 states have (on average 1.2984587251828632) internal successors, (9941), 7656 states have internal predecessors, (9941), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:18:18,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7661 states to 7661 states and 9945 transitions. [2022-01-31 22:18:18,514 INFO L78 Accepts]: Start accepts. Automaton has 7661 states and 9945 transitions. Word has length 339 [2022-01-31 22:18:18,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:18:18,514 INFO L470 AbstractCegarLoop]: Abstraction has 7661 states and 9945 transitions. [2022-01-31 22:18:18,514 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.0) internal successors, (152), 3 states have internal predecessors, (152), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:18:18,514 INFO L276 IsEmpty]: Start isEmpty. Operand 7661 states and 9945 transitions. [2022-01-31 22:18:18,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 371 [2022-01-31 22:18:18,517 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:18:18,517 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 10, 10, 9, 9, 8, 8, 7, 7, 7, 7, 6, 5, 5, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:18:18,517 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-01-31 22:18:18,517 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:18:18,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:18:18,517 INFO L85 PathProgramCache]: Analyzing trace with hash -732737604, now seen corresponding path program 1 times [2022-01-31 22:18:18,517 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:18:18,517 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [234596444] [2022-01-31 22:18:18,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:18:20,370 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 9 HavocedVariables, 0 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:18:20,371 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2022-01-31 22:18:20,371 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:18:20,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:18:20,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:18:20,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:18:20,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:18:20,415 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:18:20,415 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [234596444] [2022-01-31 22:18:20,415 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [234596444] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:18:20,415 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:18:20,415 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 22:18:20,415 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132903698] [2022-01-31 22:18:20,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:18:20,415 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 22:18:20,416 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:18:20,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 22:18:20,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 22:18:20,416 INFO L87 Difference]: Start difference. First operand 7661 states and 9945 transitions. Second operand has 4 states, 4 states have (on average 39.75) internal successors, (159), 3 states have internal predecessors, (159), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:18:22,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:18:22,408 INFO L93 Difference]: Finished difference Result 15947 states and 20772 transitions. [2022-01-31 22:18:22,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 22:18:22,409 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.75) internal successors, (159), 3 states have internal predecessors, (159), 1 states have call successors, (3), 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 370 [2022-01-31 22:18:22,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:18:22,425 INFO L225 Difference]: With dead ends: 15947 [2022-01-31 22:18:22,425 INFO L226 Difference]: Without dead ends: 8300 [2022-01-31 22:18:22,440 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-31 22:18:22,441 INFO L933 BasicCegarLoop]: 208 mSDtfsCounter, 210 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 210 SdHoareTripleChecker+Valid, 215 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-31 22:18:22,441 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [210 Valid, 215 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-31 22:18:22,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8300 states. [2022-01-31 22:18:24,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8300 to 8264. [2022-01-31 22:18:24,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8264 states, 8259 states have (on average 1.282116478992614) internal successors, (10589), 8259 states have internal predecessors, (10589), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:18:24,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8264 states to 8264 states and 10593 transitions. [2022-01-31 22:18:24,181 INFO L78 Accepts]: Start accepts. Automaton has 8264 states and 10593 transitions. Word has length 370 [2022-01-31 22:18:24,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:18:24,181 INFO L470 AbstractCegarLoop]: Abstraction has 8264 states and 10593 transitions. [2022-01-31 22:18:24,181 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.75) internal successors, (159), 3 states have internal predecessors, (159), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:18:24,181 INFO L276 IsEmpty]: Start isEmpty. Operand 8264 states and 10593 transitions. [2022-01-31 22:18:24,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 404 [2022-01-31 22:18:24,184 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:18:24,184 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 11, 11, 10, 10, 9, 9, 8, 8, 8, 8, 7, 6, 6, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:18:24,184 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-01-31 22:18:24,185 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:18:24,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:18:24,185 INFO L85 PathProgramCache]: Analyzing trace with hash -455068544, now seen corresponding path program 1 times [2022-01-31 22:18:24,185 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:18:24,185 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [864922235] [2022-01-31 22:18:24,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:18:26,190 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 9 HavocedVariables, 0 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:18:26,191 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2022-01-31 22:18:26,191 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:18:26,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:18:26,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:18:26,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:18:26,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:18:26,264 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:18:26,264 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [864922235] [2022-01-31 22:18:26,264 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [864922235] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:18:26,264 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:18:26,264 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 22:18:26,264 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658548496] [2022-01-31 22:18:26,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:18:26,265 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 22:18:26,265 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:18:26,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 22:18:26,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 22:18:26,265 INFO L87 Difference]: Start difference. First operand 8264 states and 10593 transitions. Second operand has 4 states, 4 states have (on average 41.5) internal successors, (166), 3 states have internal predecessors, (166), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:18:28,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:18:28,176 INFO L93 Difference]: Finished difference Result 16550 states and 21184 transitions. [2022-01-31 22:18:28,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 22:18:28,177 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 41.5) internal successors, (166), 3 states have internal predecessors, (166), 1 states have call successors, (3), 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 403 [2022-01-31 22:18:28,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:18:28,189 INFO L225 Difference]: With dead ends: 16550 [2022-01-31 22:18:28,189 INFO L226 Difference]: Without dead ends: 8089 [2022-01-31 22:18:28,202 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-31 22:18:28,203 INFO L933 BasicCegarLoop]: 208 mSDtfsCounter, 216 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 226 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 215 SdHoareTripleChecker+Invalid, 245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-31 22:18:28,204 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [216 Valid, 215 Invalid, 245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 226 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-31 22:18:28,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8089 states. [2022-01-31 22:18:29,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8089 to 8029. [2022-01-31 22:18:29,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8029 states, 8024 states have (on average 1.2531156530408774) internal successors, (10055), 8024 states have internal predecessors, (10055), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:18:29,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8029 states to 8029 states and 10059 transitions. [2022-01-31 22:18:29,856 INFO L78 Accepts]: Start accepts. Automaton has 8029 states and 10059 transitions. Word has length 403 [2022-01-31 22:18:29,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:18:29,856 INFO L470 AbstractCegarLoop]: Abstraction has 8029 states and 10059 transitions. [2022-01-31 22:18:29,856 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 41.5) internal successors, (166), 3 states have internal predecessors, (166), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:18:29,856 INFO L276 IsEmpty]: Start isEmpty. Operand 8029 states and 10059 transitions. [2022-01-31 22:18:29,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 442 [2022-01-31 22:18:29,859 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:18:29,859 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 12, 12, 11, 11, 10, 10, 9, 9, 9, 9, 8, 7, 7, 6, 6, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:18:29,859 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-01-31 22:18:29,859 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:18:29,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:18:29,860 INFO L85 PathProgramCache]: Analyzing trace with hash 382319086, now seen corresponding path program 1 times [2022-01-31 22:18:29,860 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:18:29,860 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [898897554] [2022-01-31 22:18:29,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:18:32,436 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 7 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=7}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:18:32,436 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2022-01-31 22:18:32,437 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:18:32,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:18:32,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:18:32,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:18:32,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:18:32,875 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:18:32,875 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [898897554] [2022-01-31 22:18:32,876 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [898897554] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:18:32,876 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:18:32,876 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-01-31 22:18:32,876 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863253609] [2022-01-31 22:18:32,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:18:32,876 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-31 22:18:32,876 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:18:32,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-31 22:18:32,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=202, Unknown=0, NotChecked=0, Total=272 [2022-01-31 22:18:32,877 INFO L87 Difference]: Start difference. First operand 8029 states and 10059 transitions. Second operand has 17 states, 17 states have (on average 13.352941176470589) internal successors, (227), 16 states have internal predecessors, (227), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:18:35,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:18:35,938 INFO L93 Difference]: Finished difference Result 16245 states and 20321 transitions. [2022-01-31 22:18:35,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-31 22:18:35,939 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 13.352941176470589) internal successors, (227), 16 states have internal predecessors, (227), 1 states have call successors, (3), 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 441 [2022-01-31 22:18:35,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:18:35,951 INFO L225 Difference]: With dead ends: 16245 [2022-01-31 22:18:35,951 INFO L226 Difference]: Without dead ends: 8230 [2022-01-31 22:18:35,966 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 178 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=204, Invalid=726, Unknown=0, NotChecked=0, Total=930 [2022-01-31 22:18:35,966 INFO L933 BasicCegarLoop]: 270 mSDtfsCounter, 714 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 2693 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 714 SdHoareTripleChecker+Valid, 307 SdHoareTripleChecker+Invalid, 2753 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 2693 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-01-31 22:18:35,966 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [714 Valid, 307 Invalid, 2753 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 2693 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-01-31 22:18:35,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8230 states. [2022-01-31 22:18:37,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8230 to 7953. [2022-01-31 22:18:37,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7953 states, 7948 states have (on average 1.2488676396577756) internal successors, (9926), 7948 states have internal predecessors, (9926), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:18:37,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7953 states to 7953 states and 9930 transitions. [2022-01-31 22:18:37,586 INFO L78 Accepts]: Start accepts. Automaton has 7953 states and 9930 transitions. Word has length 441 [2022-01-31 22:18:37,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:18:37,586 INFO L470 AbstractCegarLoop]: Abstraction has 7953 states and 9930 transitions. [2022-01-31 22:18:37,586 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 13.352941176470589) internal successors, (227), 16 states have internal predecessors, (227), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:18:37,587 INFO L276 IsEmpty]: Start isEmpty. Operand 7953 states and 9930 transitions. [2022-01-31 22:18:37,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 446 [2022-01-31 22:18:37,589 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:18:37,589 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 12, 12, 11, 11, 10, 10, 9, 9, 9, 9, 9, 8, 7, 7, 6, 6, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:18:37,589 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-01-31 22:18:37,589 INFO L402 AbstractCegarLoop]: === Iteration 56 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:18:37,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:18:37,590 INFO L85 PathProgramCache]: Analyzing trace with hash 1048935222, now seen corresponding path program 1 times [2022-01-31 22:18:37,590 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:18:37,590 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [774283428] [2022-01-31 22:18:37,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:18:39,888 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 9 HavocedVariables, 0 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:18:39,888 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2022-01-31 22:18:39,889 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:18:39,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:18:39,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:18:39,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:18:39,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:18:40,295 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:18:40,295 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [774283428] [2022-01-31 22:18:40,295 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [774283428] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:18:40,295 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:18:40,295 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-01-31 22:18:40,295 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291283186] [2022-01-31 22:18:40,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:18:40,296 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-31 22:18:40,296 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:18:40,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-31 22:18:40,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=196, Unknown=0, NotChecked=0, Total=272 [2022-01-31 22:18:40,297 INFO L87 Difference]: Start difference. First operand 7953 states and 9930 transitions. Second operand has 17 states, 17 states have (on average 11.705882352941176) internal successors, (199), 16 states have internal predecessors, (199), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:18:43,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:18:43,228 INFO L93 Difference]: Finished difference Result 12490 states and 15677 transitions. [2022-01-31 22:18:43,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-31 22:18:43,229 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 11.705882352941176) internal successors, (199), 16 states have internal predecessors, (199), 1 states have call successors, (3), 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 445 [2022-01-31 22:18:43,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:18:43,242 INFO L225 Difference]: With dead ends: 12490 [2022-01-31 22:18:43,242 INFO L226 Difference]: Without dead ends: 8244 [2022-01-31 22:18:43,251 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 168 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=222, Invalid=708, Unknown=0, NotChecked=0, Total=930 [2022-01-31 22:18:43,251 INFO L933 BasicCegarLoop]: 286 mSDtfsCounter, 786 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 2397 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 786 SdHoareTripleChecker+Valid, 313 SdHoareTripleChecker+Invalid, 2438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 2397 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-01-31 22:18:43,251 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [786 Valid, 313 Invalid, 2438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 2397 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-01-31 22:18:43,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8244 states. [2022-01-31 22:18:44,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8244 to 7999. [2022-01-31 22:18:44,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7999 states, 7994 states have (on average 1.247935951963973) internal successors, (9976), 7994 states have internal predecessors, (9976), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:18:44,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7999 states to 7999 states and 9980 transitions. [2022-01-31 22:18:44,976 INFO L78 Accepts]: Start accepts. Automaton has 7999 states and 9980 transitions. Word has length 445 [2022-01-31 22:18:44,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:18:44,976 INFO L470 AbstractCegarLoop]: Abstraction has 7999 states and 9980 transitions. [2022-01-31 22:18:44,977 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 11.705882352941176) internal successors, (199), 16 states have internal predecessors, (199), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:18:44,977 INFO L276 IsEmpty]: Start isEmpty. Operand 7999 states and 9980 transitions. [2022-01-31 22:18:44,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 448 [2022-01-31 22:18:44,979 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:18:44,979 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 12, 12, 11, 11, 10, 10, 9, 9, 9, 9, 9, 8, 7, 7, 6, 6, 5, 5, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:18:44,979 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-01-31 22:18:44,979 INFO L402 AbstractCegarLoop]: === Iteration 57 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:18:44,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:18:44,980 INFO L85 PathProgramCache]: Analyzing trace with hash -149562333, now seen corresponding path program 1 times [2022-01-31 22:18:44,980 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:18:44,980 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1875625998] [2022-01-31 22:18:44,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:18:47,665 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 7 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=7}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:18:47,666 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2022-01-31 22:18:47,666 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:18:47,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:18:47,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:18:47,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:18:47,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:18:48,228 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:18:48,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1875625998] [2022-01-31 22:18:48,228 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1875625998] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:18:48,228 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:18:48,228 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-01-31 22:18:48,228 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576055234] [2022-01-31 22:18:48,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:18:48,229 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-01-31 22:18:48,229 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:18:48,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-01-31 22:18:48,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=293, Unknown=0, NotChecked=0, Total=380 [2022-01-31 22:18:48,229 INFO L87 Difference]: Start difference. First operand 7999 states and 9980 transitions. Second operand has 20 states, 20 states have (on average 11.6) internal successors, (232), 19 states have internal predecessors, (232), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:18:51,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:18:51,759 INFO L93 Difference]: Finished difference Result 12573 states and 15782 transitions. [2022-01-31 22:18:51,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-01-31 22:18:51,760 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 11.6) internal successors, (232), 19 states have internal predecessors, (232), 1 states have call successors, (3), 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 447 [2022-01-31 22:18:51,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:18:51,768 INFO L225 Difference]: With dead ends: 12573 [2022-01-31 22:18:51,768 INFO L226 Difference]: Without dead ends: 8281 [2022-01-31 22:18:51,773 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 301 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=255, Invalid=1077, Unknown=0, NotChecked=0, Total=1332 [2022-01-31 22:18:51,773 INFO L933 BasicCegarLoop]: 287 mSDtfsCounter, 613 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 3986 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 613 SdHoareTripleChecker+Valid, 334 SdHoareTripleChecker+Invalid, 4048 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 3986 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-01-31 22:18:51,773 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [613 Valid, 334 Invalid, 4048 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 3986 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-01-31 22:18:51,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8281 states. [2022-01-31 22:18:53,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8281 to 8035. [2022-01-31 22:18:53,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8035 states, 8030 states have (on average 1.246824408468244) internal successors, (10012), 8030 states have internal predecessors, (10012), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:18:53,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8035 states to 8035 states and 10016 transitions. [2022-01-31 22:18:53,411 INFO L78 Accepts]: Start accepts. Automaton has 8035 states and 10016 transitions. Word has length 447 [2022-01-31 22:18:53,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:18:53,411 INFO L470 AbstractCegarLoop]: Abstraction has 8035 states and 10016 transitions. [2022-01-31 22:18:53,411 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 11.6) internal successors, (232), 19 states have internal predecessors, (232), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:18:53,411 INFO L276 IsEmpty]: Start isEmpty. Operand 8035 states and 10016 transitions. [2022-01-31 22:18:53,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 449 [2022-01-31 22:18:53,413 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:18:53,414 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 12, 12, 11, 11, 10, 10, 9, 9, 9, 9, 9, 8, 7, 7, 6, 6, 5, 5, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:18:53,414 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-01-31 22:18:53,414 INFO L402 AbstractCegarLoop]: === Iteration 58 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:18:53,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:18:53,414 INFO L85 PathProgramCache]: Analyzing trace with hash 127614906, now seen corresponding path program 1 times [2022-01-31 22:18:53,414 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:18:53,414 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [508930870] [2022-01-31 22:18:53,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:18:56,190 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 3 HavocedVariables, 7 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=7}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:18:56,191 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2022-01-31 22:18:56,191 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:18:56,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:18:56,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:18:56,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:18:56,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:18:56,761 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:18:56,761 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [508930870] [2022-01-31 22:18:56,761 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [508930870] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:18:56,761 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:18:56,761 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-01-31 22:18:56,761 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217956644] [2022-01-31 22:18:56,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:18:56,762 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-01-31 22:18:56,762 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:18:56,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-01-31 22:18:56,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=329, Unknown=0, NotChecked=0, Total=420 [2022-01-31 22:18:56,762 INFO L87 Difference]: Start difference. First operand 8035 states and 10016 transitions. Second operand has 21 states, 21 states have (on average 11.095238095238095) internal successors, (233), 20 states have internal predecessors, (233), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:19:00,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:19:00,018 INFO L93 Difference]: Finished difference Result 12651 states and 15862 transitions. [2022-01-31 22:19:00,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-31 22:19:00,018 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 11.095238095238095) internal successors, (233), 20 states have internal predecessors, (233), 1 states have call successors, (3), 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 448 [2022-01-31 22:19:00,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:19:00,029 INFO L225 Difference]: With dead ends: 12651 [2022-01-31 22:19:00,030 INFO L226 Difference]: Without dead ends: 8323 [2022-01-31 22:19:00,035 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 341 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=267, Invalid=1215, Unknown=0, NotChecked=0, Total=1482 [2022-01-31 22:19:00,035 INFO L933 BasicCegarLoop]: 291 mSDtfsCounter, 880 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 3032 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 880 SdHoareTripleChecker+Valid, 328 SdHoareTripleChecker+Invalid, 3104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 3032 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-01-31 22:19:00,036 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [880 Valid, 328 Invalid, 3104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 3032 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-01-31 22:19:00,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8323 states. [2022-01-31 22:19:01,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8323 to 8036. [2022-01-31 22:19:01,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8036 states, 8031 states have (on average 1.2467936745112689) internal successors, (10013), 8031 states have internal predecessors, (10013), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:19:01,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8036 states to 8036 states and 10017 transitions. [2022-01-31 22:19:01,731 INFO L78 Accepts]: Start accepts. Automaton has 8036 states and 10017 transitions. Word has length 448 [2022-01-31 22:19:01,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:19:01,731 INFO L470 AbstractCegarLoop]: Abstraction has 8036 states and 10017 transitions. [2022-01-31 22:19:01,731 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 11.095238095238095) internal successors, (233), 20 states have internal predecessors, (233), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:19:01,731 INFO L276 IsEmpty]: Start isEmpty. Operand 8036 states and 10017 transitions. [2022-01-31 22:19:01,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 449 [2022-01-31 22:19:01,734 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:19:01,734 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 12, 12, 11, 11, 10, 10, 9, 9, 9, 9, 9, 8, 7, 7, 6, 6, 5, 5, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:19:01,734 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-01-31 22:19:01,734 INFO L402 AbstractCegarLoop]: === Iteration 59 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:19:01,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:19:01,734 INFO L85 PathProgramCache]: Analyzing trace with hash 1441880382, now seen corresponding path program 1 times [2022-01-31 22:19:01,734 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:19:01,734 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [762435653] [2022-01-31 22:19:01,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:19:04,076 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:19:04,077 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:19:04,077 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:19:04,077 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:19:04,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:19:04,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:19:04,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:19:04,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:19:04,134 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:19:04,134 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [762435653] [2022-01-31 22:19:04,134 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [762435653] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:19:04,134 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:19:04,134 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 22:19:04,134 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032205038] [2022-01-31 22:19:04,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:19:04,135 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 22:19:04,135 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:19:04,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 22:19:04,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 22:19:04,135 INFO L87 Difference]: Start difference. First operand 8036 states and 10017 transitions. Second operand has 4 states, 4 states have (on average 39.5) internal successors, (158), 3 states have internal predecessors, (158), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:19:06,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:19:06,110 INFO L93 Difference]: Finished difference Result 12386 states and 15528 transitions. [2022-01-31 22:19:06,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 22:19:06,111 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.5) internal successors, (158), 3 states have internal predecessors, (158), 1 states have call successors, (3), 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 448 [2022-01-31 22:19:06,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:19:06,119 INFO L225 Difference]: With dead ends: 12386 [2022-01-31 22:19:06,119 INFO L226 Difference]: Without dead ends: 8057 [2022-01-31 22:19:06,126 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-31 22:19:06,126 INFO L933 BasicCegarLoop]: 231 mSDtfsCounter, 430 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 196 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 430 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-31 22:19:06,126 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [430 Valid, 238 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 196 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-31 22:19:06,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8057 states. [2022-01-31 22:19:07,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8057 to 6794. [2022-01-31 22:19:07,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6794 states, 6789 states have (on average 1.238032110767418) internal successors, (8405), 6789 states have internal predecessors, (8405), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:19:07,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6794 states to 6794 states and 8409 transitions. [2022-01-31 22:19:07,685 INFO L78 Accepts]: Start accepts. Automaton has 6794 states and 8409 transitions. Word has length 448 [2022-01-31 22:19:07,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:19:07,685 INFO L470 AbstractCegarLoop]: Abstraction has 6794 states and 8409 transitions. [2022-01-31 22:19:07,685 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.5) internal successors, (158), 3 states have internal predecessors, (158), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:19:07,685 INFO L276 IsEmpty]: Start isEmpty. Operand 6794 states and 8409 transitions. [2022-01-31 22:19:07,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 461 [2022-01-31 22:19:07,688 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:19:07,688 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 12, 12, 11, 11, 11, 10, 10, 9, 9, 9, 9, 8, 7, 7, 6, 6, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:19:07,688 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-01-31 22:19:07,688 INFO L402 AbstractCegarLoop]: === Iteration 60 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:19:07,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:19:07,688 INFO L85 PathProgramCache]: Analyzing trace with hash 1708134244, now seen corresponding path program 1 times [2022-01-31 22:19:07,688 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:19:07,688 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1646269963] [2022-01-31 22:19:07,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:19:10,205 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 24 HavocedVariables, 0 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:19:10,206 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2022-01-31 22:19:10,206 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:19:10,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:19:10,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:19:10,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:19:10,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:19:10,752 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:19:10,752 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1646269963] [2022-01-31 22:19:10,752 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1646269963] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:19:10,752 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:19:10,752 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2022-01-31 22:19:10,752 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [236582971] [2022-01-31 22:19:10,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:19:10,753 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-01-31 22:19:10,753 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:19:10,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-01-31 22:19:10,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=211, Invalid=491, Unknown=0, NotChecked=0, Total=702 [2022-01-31 22:19:10,753 INFO L87 Difference]: Start difference. First operand 6794 states and 8409 transitions. Second operand has 27 states, 27 states have (on average 6.407407407407407) internal successors, (173), 26 states have internal predecessors, (173), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:19:15,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:19:15,024 INFO L93 Difference]: Finished difference Result 14549 states and 17954 transitions. [2022-01-31 22:19:15,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-01-31 22:19:15,024 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 6.407407407407407) internal successors, (173), 26 states have internal predecessors, (173), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 460 [2022-01-31 22:19:15,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:19:15,031 INFO L225 Difference]: With dead ends: 14549 [2022-01-31 22:19:15,031 INFO L226 Difference]: Without dead ends: 5989 [2022-01-31 22:19:15,041 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 438 GetRequests, 389 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 537 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=627, Invalid=1923, Unknown=0, NotChecked=0, Total=2550 [2022-01-31 22:19:15,042 INFO L933 BasicCegarLoop]: 443 mSDtfsCounter, 1179 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 4185 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1179 SdHoareTripleChecker+Valid, 485 SdHoareTripleChecker+Invalid, 4241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 4185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-01-31 22:19:15,042 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1179 Valid, 485 Invalid, 4241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 4185 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-01-31 22:19:15,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5989 states. [2022-01-31 22:19:16,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5989 to 5896. [2022-01-31 22:19:16,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5896 states, 5891 states have (on average 1.2320488881344425) internal successors, (7258), 5891 states have internal predecessors, (7258), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:19:16,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5896 states to 5896 states and 7262 transitions. [2022-01-31 22:19:16,410 INFO L78 Accepts]: Start accepts. Automaton has 5896 states and 7262 transitions. Word has length 460 [2022-01-31 22:19:16,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:19:16,410 INFO L470 AbstractCegarLoop]: Abstraction has 5896 states and 7262 transitions. [2022-01-31 22:19:16,410 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 6.407407407407407) internal successors, (173), 26 states have internal predecessors, (173), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:19:16,410 INFO L276 IsEmpty]: Start isEmpty. Operand 5896 states and 7262 transitions. [2022-01-31 22:19:16,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 461 [2022-01-31 22:19:16,413 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:19:16,413 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 12, 12, 11, 11, 11, 10, 10, 9, 9, 9, 9, 8, 7, 7, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:19:16,413 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-01-31 22:19:16,413 INFO L402 AbstractCegarLoop]: === Iteration 61 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:19:16,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:19:16,413 INFO L85 PathProgramCache]: Analyzing trace with hash -23274008, now seen corresponding path program 1 times [2022-01-31 22:19:16,413 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:19:16,413 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2113006745] [2022-01-31 22:19:16,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:19:18,986 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 24 HavocedVariables, 0 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:19:18,987 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2022-01-31 22:19:18,987 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:19:18,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:19:19,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:19:19,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:19:19,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:19:19,516 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:19:19,516 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2113006745] [2022-01-31 22:19:19,516 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [2113006745] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:19:19,516 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:19:19,516 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2022-01-31 22:19:19,516 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712841336] [2022-01-31 22:19:19,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:19:19,517 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-01-31 22:19:19,517 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:19:19,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-01-31 22:19:19,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=198, Invalid=504, Unknown=0, NotChecked=0, Total=702 [2022-01-31 22:19:19,517 INFO L87 Difference]: Start difference. First operand 5896 states and 7262 transitions. Second operand has 27 states, 27 states have (on average 6.407407407407407) internal successors, (173), 26 states have internal predecessors, (173), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:19:22,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:19:22,198 INFO L93 Difference]: Finished difference Result 9411 states and 11696 transitions. [2022-01-31 22:19:22,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-01-31 22:19:22,198 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 6.407407407407407) internal successors, (173), 26 states have internal predecessors, (173), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 460 [2022-01-31 22:19:22,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:19:22,205 INFO L225 Difference]: With dead ends: 9411 [2022-01-31 22:19:22,205 INFO L226 Difference]: Without dead ends: 5957 [2022-01-31 22:19:22,209 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 430 GetRequests, 381 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 556 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=588, Invalid=1962, Unknown=0, NotChecked=0, Total=2550 [2022-01-31 22:19:22,209 INFO L933 BasicCegarLoop]: 233 mSDtfsCounter, 300 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 2141 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 300 SdHoareTripleChecker+Valid, 275 SdHoareTripleChecker+Invalid, 2149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 2141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-31 22:19:22,209 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [300 Valid, 275 Invalid, 2149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 2141 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-31 22:19:22,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5957 states. [2022-01-31 22:19:23,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5957 to 5923. [2022-01-31 22:19:23,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5923 states, 5918 states have (on average 1.2311591753970936) internal successors, (7286), 5918 states have internal predecessors, (7286), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:19:23,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5923 states to 5923 states and 7290 transitions. [2022-01-31 22:19:23,598 INFO L78 Accepts]: Start accepts. Automaton has 5923 states and 7290 transitions. Word has length 460 [2022-01-31 22:19:23,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:19:23,598 INFO L470 AbstractCegarLoop]: Abstraction has 5923 states and 7290 transitions. [2022-01-31 22:19:23,598 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 6.407407407407407) internal successors, (173), 26 states have internal predecessors, (173), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:19:23,598 INFO L276 IsEmpty]: Start isEmpty. Operand 5923 states and 7290 transitions. [2022-01-31 22:19:23,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 462 [2022-01-31 22:19:23,601 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:19:23,601 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 12, 12, 11, 11, 11, 10, 10, 9, 9, 9, 9, 8, 7, 7, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:19:23,601 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-01-31 22:19:23,601 INFO L402 AbstractCegarLoop]: === Iteration 62 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:19:23,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:19:23,602 INFO L85 PathProgramCache]: Analyzing trace with hash 981009749, now seen corresponding path program 1 times [2022-01-31 22:19:23,602 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:19:23,602 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1655955400] [2022-01-31 22:19:23,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:19:26,190 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 25 HavocedVariables, 0 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:19:26,190 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2022-01-31 22:19:26,191 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:19:26,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:19:26,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:19:26,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:19:26,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:19:26,795 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:19:26,795 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1655955400] [2022-01-31 22:19:26,795 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1655955400] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:19:26,796 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:19:26,796 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-31 22:19:26,796 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870728898] [2022-01-31 22:19:26,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:19:26,796 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-31 22:19:26,796 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:19:26,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-31 22:19:26,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=205, Invalid=551, Unknown=0, NotChecked=0, Total=756 [2022-01-31 22:19:26,797 INFO L87 Difference]: Start difference. First operand 5923 states and 7290 transitions. Second operand has 28 states, 28 states have (on average 6.214285714285714) internal successors, (174), 27 states have internal predecessors, (174), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:19:29,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:19:29,502 INFO L93 Difference]: Finished difference Result 9444 states and 11728 transitions. [2022-01-31 22:19:29,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-01-31 22:19:29,503 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 6.214285714285714) internal successors, (174), 27 states have internal predecessors, (174), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 461 [2022-01-31 22:19:29,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:19:29,509 INFO L225 Difference]: With dead ends: 9444 [2022-01-31 22:19:29,509 INFO L226 Difference]: Without dead ends: 5963 [2022-01-31 22:19:29,513 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 432 GetRequests, 381 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 625 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=609, Invalid=2147, Unknown=0, NotChecked=0, Total=2756 [2022-01-31 22:19:29,513 INFO L933 BasicCegarLoop]: 236 mSDtfsCounter, 311 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 2079 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 311 SdHoareTripleChecker+Valid, 278 SdHoareTripleChecker+Invalid, 2086 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 2079 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-31 22:19:29,513 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [311 Valid, 278 Invalid, 2086 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 2079 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-31 22:19:29,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5963 states. [2022-01-31 22:19:30,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5963 to 5923. [2022-01-31 22:19:30,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5923 states, 5918 states have (on average 1.2311591753970936) internal successors, (7286), 5918 states have internal predecessors, (7286), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:19:30,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5923 states to 5923 states and 7290 transitions. [2022-01-31 22:19:30,870 INFO L78 Accepts]: Start accepts. Automaton has 5923 states and 7290 transitions. Word has length 461 [2022-01-31 22:19:30,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:19:30,870 INFO L470 AbstractCegarLoop]: Abstraction has 5923 states and 7290 transitions. [2022-01-31 22:19:30,871 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 6.214285714285714) internal successors, (174), 27 states have internal predecessors, (174), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:19:30,871 INFO L276 IsEmpty]: Start isEmpty. Operand 5923 states and 7290 transitions. [2022-01-31 22:19:30,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 462 [2022-01-31 22:19:30,874 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:19:30,874 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 12, 12, 11, 11, 10, 10, 10, 9, 9, 9, 9, 8, 7, 7, 6, 6, 5, 5, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:19:30,874 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2022-01-31 22:19:30,874 INFO L402 AbstractCegarLoop]: === Iteration 63 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:19:30,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:19:30,874 INFO L85 PathProgramCache]: Analyzing trace with hash 1072021918, now seen corresponding path program 1 times [2022-01-31 22:19:30,875 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:19:30,875 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2127639993] [2022-01-31 22:19:30,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:19:33,400 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 22 HavocedVariables, 0 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:19:33,478 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:19:33,479 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:19:33,479 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:19:33,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:19:33,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:19:33,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:19:33,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:19:34,541 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:19:34,542 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2127639993] [2022-01-31 22:19:34,542 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [2127639993] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:19:34,542 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:19:34,542 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [36] imperfect sequences [] total 36 [2022-01-31 22:19:34,542 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735966657] [2022-01-31 22:19:34,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:19:34,542 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2022-01-31 22:19:34,543 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:19:34,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2022-01-31 22:19:34,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=385, Invalid=875, Unknown=0, NotChecked=0, Total=1260 [2022-01-31 22:19:34,543 INFO L87 Difference]: Start difference. First operand 5923 states and 7290 transitions. Second operand has 36 states, 36 states have (on average 6.027777777777778) internal successors, (217), 35 states have internal predecessors, (217), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:19:39,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:19:39,767 INFO L93 Difference]: Finished difference Result 16478 states and 20623 transitions. [2022-01-31 22:19:39,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-01-31 22:19:39,767 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 6.027777777777778) internal successors, (217), 35 states have internal predecessors, (217), 1 states have call successors, (3), 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 461 [2022-01-31 22:19:39,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:19:39,782 INFO L225 Difference]: With dead ends: 16478 [2022-01-31 22:19:39,783 INFO L226 Difference]: Without dead ends: 12997 [2022-01-31 22:19:39,788 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 454 GetRequests, 386 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1060 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=1184, Invalid=3646, Unknown=0, NotChecked=0, Total=4830 [2022-01-31 22:19:39,788 INFO L933 BasicCegarLoop]: 299 mSDtfsCounter, 1613 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 3329 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1613 SdHoareTripleChecker+Valid, 331 SdHoareTripleChecker+Invalid, 3374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 3329 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-01-31 22:19:39,789 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1613 Valid, 331 Invalid, 3374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 3329 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-01-31 22:19:39,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12997 states. [2022-01-31 22:19:42,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12997 to 11232. [2022-01-31 22:19:42,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11232 states, 11227 states have (on average 1.210029393426561) internal successors, (13585), 11227 states have internal predecessors, (13585), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:19:42,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11232 states to 11232 states and 13589 transitions. [2022-01-31 22:19:42,553 INFO L78 Accepts]: Start accepts. Automaton has 11232 states and 13589 transitions. Word has length 461 [2022-01-31 22:19:42,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:19:42,553 INFO L470 AbstractCegarLoop]: Abstraction has 11232 states and 13589 transitions. [2022-01-31 22:19:42,554 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 6.027777777777778) internal successors, (217), 35 states have internal predecessors, (217), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:19:42,554 INFO L276 IsEmpty]: Start isEmpty. Operand 11232 states and 13589 transitions. [2022-01-31 22:19:42,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 485 [2022-01-31 22:19:42,558 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:19:42,558 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 12, 12, 11, 11, 11, 11, 10, 10, 9, 9, 9, 9, 8, 8, 8, 7, 7, 6, 6, 5, 5, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:19:42,558 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2022-01-31 22:19:42,559 INFO L402 AbstractCegarLoop]: === Iteration 64 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:19:42,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:19:42,559 INFO L85 PathProgramCache]: Analyzing trace with hash -262888108, now seen corresponding path program 1 times [2022-01-31 22:19:42,559 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:19:42,559 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1659963776] [2022-01-31 22:19:42,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:19:45,473 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:19:45,553 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 5 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=3, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:19:45,629 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 4 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=2, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:19:45,705 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 5 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=3, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:19:45,783 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 5 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=3, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult