/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_13.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-d966a43 [2022-01-31 22:10:11,268 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-31 22:10:11,269 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-31 22:10:11,309 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-01-31 22:10:11,316 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-31 22:10:11,317 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-31 22:10:11,317 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-31 22:10:11,318 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-31 22:10:11,318 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-31 22:10:11,319 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-31 22:10:11,320 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-31 22:10:11,321 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-31 22:10:11,322 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-31 22:10:11,322 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-31 22:10:11,323 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-31 22:10:11,324 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-31 22:10:11,325 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-31 22:10:11,330 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-31 22:10:11,330 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-31 22:10:11,331 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-31 22:10:11,331 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 22:10:11,337 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-31 22:10:11,337 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-31 22:10:11,338 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-31 22:10:11,338 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-31 22:10:11,338 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-31 22:10:11,338 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-31 22:10:11,338 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-31 22:10:11,338 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-31 22:10:11,339 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-31 22:10:11,339 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-31 22:10:11,339 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-31 22:10:11,339 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-31 22:10:11,339 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-31 22:10:11,339 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-31 22:10:11,339 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-31 22:10:11,339 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-31 22:10:11,339 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-31 22:10:11,340 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-31 22:10:11,340 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-31 22:10:11,340 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-31 22:10:11,340 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2022-01-31 22:10:11,340 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-31 22:10:11,340 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=JORDAN [2022-01-31 22:10:11,340 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-31 22:10:11,475 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-31 22:10:11,493 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-31 22:10:11,495 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-31 22:10:11,495 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-31 22:10:11,500 INFO L275 PluginConnector]: CDTParser initialized [2022-01-31 22:10:11,500 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl-simplified/s3_srvr_13.cil.c [2022-01-31 22:10:11,540 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f5244cc5/3da721c25ddc4b419ab80b8c0bf02496/FLAGbf4018561 [2022-01-31 22:10:11,897 INFO L306 CDTParser]: Found 1 translation units. [2022-01-31 22:10:11,897 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl-simplified/s3_srvr_13.cil.c [2022-01-31 22:10:11,912 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f5244cc5/3da721c25ddc4b419ab80b8c0bf02496/FLAGbf4018561 [2022-01-31 22:10:11,921 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f5244cc5/3da721c25ddc4b419ab80b8c0bf02496 [2022-01-31 22:10:11,925 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-31 22:10:11,926 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-01-31 22:10:11,929 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-31 22:10:11,929 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-31 22:10:11,931 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-31 22:10:11,932 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 10:10:11" (1/1) ... [2022-01-31 22:10:11,932 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3423436b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:10:11, skipping insertion in model container [2022-01-31 22:10:11,933 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 10:10:11" (1/1) ... [2022-01-31 22:10:11,937 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-31 22:10:11,965 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-31 22:10:12,159 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_13.cil.c[45032,45045] [2022-01-31 22:10:12,165 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-31 22:10:12,171 INFO L203 MainTranslator]: Completed pre-run [2022-01-31 22:10:12,203 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_13.cil.c[45032,45045] [2022-01-31 22:10:12,205 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-31 22:10:12,216 INFO L208 MainTranslator]: Completed translation [2022-01-31 22:10:12,217 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:10:12 WrapperNode [2022-01-31 22:10:12,217 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-31 22:10:12,217 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-31 22:10:12,217 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-31 22:10:12,217 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-31 22:10:12,225 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:10:12" (1/1) ... [2022-01-31 22:10:12,225 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:10:12" (1/1) ... [2022-01-31 22:10:12,239 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:10:12" (1/1) ... [2022-01-31 22:10:12,239 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:10:12" (1/1) ... [2022-01-31 22:10:12,246 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:10:12" (1/1) ... [2022-01-31 22:10:12,259 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:10:12" (1/1) ... [2022-01-31 22:10:12,260 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:10:12" (1/1) ... [2022-01-31 22:10:12,262 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-31 22:10:12,263 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-31 22:10:12,263 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-31 22:10:12,263 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-31 22:10:12,264 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:10:12" (1/1) ... [2022-01-31 22:10:12,285 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-31 22:10:12,292 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 22:10:12,304 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 22:10:12,322 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 22:10:12,330 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-01-31 22:10:12,330 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-31 22:10:12,330 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-01-31 22:10:12,330 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-01-31 22:10:12,330 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-01-31 22:10:12,331 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-01-31 22:10:12,331 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-01-31 22:10:12,331 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-01-31 22:10:12,331 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-31 22:10:12,331 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-01-31 22:10:12,331 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-01-31 22:10:12,332 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-01-31 22:10:12,332 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-01-31 22:10:12,332 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-01-31 22:10:12,332 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-01-31 22:10:12,334 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-31 22:10:12,334 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-31 22:10:12,334 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-31 22:10:12,334 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-31 22:10:12,334 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-31 22:10:12,407 INFO L234 CfgBuilder]: Building ICFG [2022-01-31 22:10:12,408 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-31 22:10:12,485 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-01-31 22:10:12,782 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##90: assume false; [2022-01-31 22:10:12,783 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##91: assume !false; [2022-01-31 22:10:12,794 INFO L275 CfgBuilder]: Performing block encoding [2022-01-31 22:10:12,800 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-31 22:10:12,800 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-31 22:10:12,801 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 10:10:12 BoogieIcfgContainer [2022-01-31 22:10:12,801 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-31 22:10:12,803 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-31 22:10:12,803 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-31 22:10:12,805 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-31 22:10:12,805 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.01 10:10:11" (1/3) ... [2022-01-31 22:10:12,806 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@767dc946 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 10:10:12, skipping insertion in model container [2022-01-31 22:10:12,806 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:10:12" (2/3) ... [2022-01-31 22:10:12,806 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@767dc946 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 10:10:12, skipping insertion in model container [2022-01-31 22:10:12,806 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 10:10:12" (3/3) ... [2022-01-31 22:10:12,807 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr_13.cil.c [2022-01-31 22:10:12,810 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-01-31 22:10:12,810 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-31 22:10:12,838 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-31 22:10:12,843 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 22:10:12,843 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-31 22:10:12,856 INFO L276 IsEmpty]: Start isEmpty. Operand has 162 states, 154 states have (on average 1.7272727272727273) internal successors, (266), 155 states have internal predecessors, (266), 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 22:10:12,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-01-31 22:10:12,864 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:10:12,864 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] [2022-01-31 22:10:12,864 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:10:12,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:10:12,868 INFO L85 PathProgramCache]: Analyzing trace with hash -963493744, now seen corresponding path program 1 times [2022-01-31 22:10:12,873 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:10:12,874 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1186063990] [2022-01-31 22:10:12,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:10:12,882 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:10:12,913 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:10:12,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:10:13,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:10:13,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:10:13,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:10:13,048 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:10:13,048 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1186063990] [2022-01-31 22:10:13,049 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1186063990] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:10:13,049 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:10:13,049 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 22:10:13,050 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374170520] [2022-01-31 22:10:13,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:10:13,053 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 22:10:13,053 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:10:13,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 22:10:13,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 22:10:13,084 INFO L87 Difference]: Start difference. First operand has 162 states, 154 states have (on average 1.7272727272727273) internal successors, (266), 155 states have internal predecessors, (266), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:10:13,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:10:13,585 INFO L93 Difference]: Finished difference Result 364 states and 611 transitions. [2022-01-31 22:10:13,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-31 22:10:13,587 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (3), 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 32 [2022-01-31 22:10:13,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:10:13,601 INFO L225 Difference]: With dead ends: 364 [2022-01-31 22:10:13,601 INFO L226 Difference]: Without dead ends: 185 [2022-01-31 22:10:13,605 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 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 22:10:13,608 INFO L933 BasicCegarLoop]: 231 mSDtfsCounter, 542 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 417 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 543 SdHoareTripleChecker+Valid, 246 SdHoareTripleChecker+Invalid, 433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 417 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-31 22:10:13,609 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [543 Valid, 246 Invalid, 433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 417 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-31 22:10:13,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2022-01-31 22:10:13,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 162. [2022-01-31 22:10:13,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 157 states have (on average 1.5414012738853504) internal successors, (242), 157 states have internal predecessors, (242), 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 22:10:13,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 246 transitions. [2022-01-31 22:10:13,678 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 246 transitions. Word has length 32 [2022-01-31 22:10:13,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:10:13,679 INFO L470 AbstractCegarLoop]: Abstraction has 162 states and 246 transitions. [2022-01-31 22:10:13,679 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:10:13,679 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 246 transitions. [2022-01-31 22:10:13,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-01-31 22:10:13,681 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:10:13,681 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] [2022-01-31 22:10:13,682 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-31 22:10:13,682 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:10:13,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:10:13,684 INFO L85 PathProgramCache]: Analyzing trace with hash -76895489, now seen corresponding path program 1 times [2022-01-31 22:10:13,684 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:10:13,684 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1230864960] [2022-01-31 22:10:13,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:10:13,686 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:10:13,690 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:10:13,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:10:13,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:10:13,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:10:13,766 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 22:10:13,766 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:10:13,766 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1230864960] [2022-01-31 22:10:13,766 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1230864960] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:10:13,767 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:10:13,767 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 22:10:13,767 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464149782] [2022-01-31 22:10:13,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:10:13,767 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 22:10:13,768 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:10:13,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 22:10:13,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 22:10:13,768 INFO L87 Difference]: Start difference. First operand 162 states and 246 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:10:14,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:10:14,028 INFO L93 Difference]: Finished difference Result 330 states and 501 transitions. [2022-01-31 22:10:14,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 22:10:14,029 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (3), 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 33 [2022-01-31 22:10:14,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:10:14,032 INFO L225 Difference]: With dead ends: 330 [2022-01-31 22:10:14,032 INFO L226 Difference]: Without dead ends: 182 [2022-01-31 22:10:14,038 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-31 22:10:14,039 INFO L933 BasicCegarLoop]: 169 mSDtfsCounter, 424 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 360 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 424 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 360 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-31 22:10:14,040 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [424 Valid, 181 Invalid, 373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 360 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-31 22:10:14,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2022-01-31 22:10:14,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 152. [2022-01-31 22:10:14,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 147 states have (on average 1.5578231292517006) internal successors, (229), 147 states have internal predecessors, (229), 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 22:10:14,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 233 transitions. [2022-01-31 22:10:14,074 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 233 transitions. Word has length 33 [2022-01-31 22:10:14,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:10:14,074 INFO L470 AbstractCegarLoop]: Abstraction has 152 states and 233 transitions. [2022-01-31 22:10:14,075 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:10:14,075 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 233 transitions. [2022-01-31 22:10:14,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-01-31 22:10:14,075 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:10:14,075 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] [2022-01-31 22:10:14,076 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-31 22:10:14,076 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:10:14,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:10:14,076 INFO L85 PathProgramCache]: Analyzing trace with hash 1425858867, now seen corresponding path program 1 times [2022-01-31 22:10:14,076 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:10:14,076 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1847502146] [2022-01-31 22:10:14,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:10:14,077 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:10:14,078 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:10:14,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:10:14,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:10:14,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:10:14,129 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 22:10:14,129 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:10:14,130 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1847502146] [2022-01-31 22:10:14,130 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1847502146] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:10:14,131 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:10:14,131 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 22:10:14,131 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744422920] [2022-01-31 22:10:14,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:10:14,131 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 22:10:14,132 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:10:14,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 22:10:14,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 22:10:14,133 INFO L87 Difference]: Start difference. First operand 152 states and 233 transitions. Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:10:14,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:10:14,363 INFO L93 Difference]: Finished difference Result 337 states and 535 transitions. [2022-01-31 22:10:14,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 22:10:14,363 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (3), 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 33 [2022-01-31 22:10:14,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:10:14,364 INFO L225 Difference]: With dead ends: 337 [2022-01-31 22:10:14,364 INFO L226 Difference]: Without dead ends: 151 [2022-01-31 22:10:14,365 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 22:10:14,365 INFO L933 BasicCegarLoop]: 237 mSDtfsCounter, 269 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 256 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 269 SdHoareTripleChecker+Valid, 244 SdHoareTripleChecker+Invalid, 294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-31 22:10:14,366 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [269 Valid, 244 Invalid, 294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 256 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-31 22:10:14,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2022-01-31 22:10:14,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 151. [2022-01-31 22:10:14,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 146 states have (on average 1.547945205479452) internal successors, (226), 146 states have internal predecessors, (226), 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 22:10:14,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 230 transitions. [2022-01-31 22:10:14,377 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 230 transitions. Word has length 33 [2022-01-31 22:10:14,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:10:14,377 INFO L470 AbstractCegarLoop]: Abstraction has 151 states and 230 transitions. [2022-01-31 22:10:14,378 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:10:14,378 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 230 transitions. [2022-01-31 22:10:14,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-01-31 22:10:14,378 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:10:14,379 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] [2022-01-31 22:10:14,379 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-31 22:10:14,379 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:10:14,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:10:14,379 INFO L85 PathProgramCache]: Analyzing trace with hash -319735020, now seen corresponding path program 1 times [2022-01-31 22:10:14,379 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:10:14,380 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1805950730] [2022-01-31 22:10:14,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:10:14,380 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:10:14,381 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:10:14,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:10:14,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:10:14,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:10:14,433 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 22:10:14,434 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:10:14,434 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1805950730] [2022-01-31 22:10:14,434 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1805950730] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:10:14,434 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:10:14,434 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 22:10:14,434 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269534324] [2022-01-31 22:10:14,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:10:14,434 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 22:10:14,434 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:10:14,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 22:10:14,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 22:10:14,435 INFO L87 Difference]: Start difference. First operand 151 states and 230 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:10:14,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:10:14,673 INFO L93 Difference]: Finished difference Result 329 states and 498 transitions. [2022-01-31 22:10:14,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-31 22:10:14,673 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (3), 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 33 [2022-01-31 22:10:14,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:10:14,674 INFO L225 Difference]: With dead ends: 329 [2022-01-31 22:10:14,674 INFO L226 Difference]: Without dead ends: 192 [2022-01-31 22:10:14,674 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 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 22:10:14,675 INFO L933 BasicCegarLoop]: 176 mSDtfsCounter, 421 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 349 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 421 SdHoareTripleChecker+Valid, 188 SdHoareTripleChecker+Invalid, 364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 349 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-31 22:10:14,675 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [421 Valid, 188 Invalid, 364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 349 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-31 22:10:14,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2022-01-31 22:10:14,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 149. [2022-01-31 22:10:14,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 144 states have (on average 1.5555555555555556) internal successors, (224), 144 states have internal predecessors, (224), 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 22:10:14,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 228 transitions. [2022-01-31 22:10:14,685 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 228 transitions. Word has length 33 [2022-01-31 22:10:14,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:10:14,685 INFO L470 AbstractCegarLoop]: Abstraction has 149 states and 228 transitions. [2022-01-31 22:10:14,685 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:10:14,685 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 228 transitions. [2022-01-31 22:10:14,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-31 22:10:14,686 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:10:14,686 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] [2022-01-31 22:10:14,686 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-31 22:10:14,686 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:10:14,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:10:14,687 INFO L85 PathProgramCache]: Analyzing trace with hash 1614356125, now seen corresponding path program 1 times [2022-01-31 22:10:14,687 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:10:14,687 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1214324145] [2022-01-31 22:10:14,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:10:14,687 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:10:14,688 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:10:14,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:10:14,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:10:14,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:10:14,722 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 22:10:14,722 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:10:14,722 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1214324145] [2022-01-31 22:10:14,722 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1214324145] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:10:14,722 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:10:14,723 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 22:10:14,723 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521846336] [2022-01-31 22:10:14,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:10:14,723 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 22:10:14,723 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:10:14,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 22:10:14,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 22:10:14,724 INFO L87 Difference]: Start difference. First operand 149 states and 228 transitions. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:10:14,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:10:14,896 INFO L93 Difference]: Finished difference Result 418 states and 647 transitions. [2022-01-31 22:10:14,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 22:10:14,897 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 1 states have call successors, (3), 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 39 [2022-01-31 22:10:14,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:10:14,899 INFO L225 Difference]: With dead ends: 418 [2022-01-31 22:10:14,899 INFO L226 Difference]: Without dead ends: 283 [2022-01-31 22:10:14,899 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 22:10:14,901 INFO L933 BasicCegarLoop]: 212 mSDtfsCounter, 581 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 581 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-31 22:10:14,903 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [581 Valid, 219 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-31 22:10:14,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2022-01-31 22:10:14,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 281. [2022-01-31 22:10:14,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 281 states, 276 states have (on average 1.5289855072463767) internal successors, (422), 276 states have internal predecessors, (422), 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 22:10:14,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 426 transitions. [2022-01-31 22:10:14,940 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 426 transitions. Word has length 39 [2022-01-31 22:10:14,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:10:14,941 INFO L470 AbstractCegarLoop]: Abstraction has 281 states and 426 transitions. [2022-01-31 22:10:14,941 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:10:14,941 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 426 transitions. [2022-01-31 22:10:14,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-01-31 22:10:14,944 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:10:14,944 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] [2022-01-31 22:10:14,944 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-31 22:10:14,944 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:10:14,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:10:14,945 INFO L85 PathProgramCache]: Analyzing trace with hash 1772802082, now seen corresponding path program 1 times [2022-01-31 22:10:14,945 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:10:14,945 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1344590071] [2022-01-31 22:10:14,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:10:14,945 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:10:14,946 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:10:14,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:10:14,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:10:14,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:10:14,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:10:14,993 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:10:14,993 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1344590071] [2022-01-31 22:10:14,993 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1344590071] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:10:14,993 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:10:14,993 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 22:10:14,993 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692835203] [2022-01-31 22:10:14,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:10:14,993 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 22:10:14,993 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:10:14,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 22:10:14,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 22:10:14,994 INFO L87 Difference]: Start difference. First operand 281 states and 426 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:10:15,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:10:15,210 INFO L93 Difference]: Finished difference Result 662 states and 1032 transitions. [2022-01-31 22:10:15,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 22:10:15,210 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (3), 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 41 [2022-01-31 22:10:15,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:10:15,212 INFO L225 Difference]: With dead ends: 662 [2022-01-31 22:10:15,212 INFO L226 Difference]: Without dead ends: 395 [2022-01-31 22:10:15,213 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 22:10:15,214 INFO L933 BasicCegarLoop]: 232 mSDtfsCounter, 302 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 240 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 302 SdHoareTripleChecker+Valid, 239 SdHoareTripleChecker+Invalid, 279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-31 22:10:15,216 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [302 Valid, 239 Invalid, 279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 240 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-31 22:10:15,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 395 states. [2022-01-31 22:10:15,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 395 to 367. [2022-01-31 22:10:15,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 367 states, 362 states have (on average 1.4530386740331491) internal successors, (526), 362 states have internal predecessors, (526), 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 22:10:15,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 367 states to 367 states and 530 transitions. [2022-01-31 22:10:15,240 INFO L78 Accepts]: Start accepts. Automaton has 367 states and 530 transitions. Word has length 41 [2022-01-31 22:10:15,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:10:15,240 INFO L470 AbstractCegarLoop]: Abstraction has 367 states and 530 transitions. [2022-01-31 22:10:15,240 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:10:15,240 INFO L276 IsEmpty]: Start isEmpty. Operand 367 states and 530 transitions. [2022-01-31 22:10:15,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-01-31 22:10:15,241 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:10:15,241 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:10:15,242 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-31 22:10:15,242 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:10:15,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:10:15,242 INFO L85 PathProgramCache]: Analyzing trace with hash 2030967520, now seen corresponding path program 1 times [2022-01-31 22:10:15,242 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:10:15,242 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [561328507] [2022-01-31 22:10:15,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:10:15,243 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:10:15,243 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:10:15,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:10:15,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:10:15,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:10:15,295 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 22:10:15,295 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:10:15,295 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [561328507] [2022-01-31 22:10:15,295 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [561328507] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:10:15,295 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:10:15,295 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 22:10:15,295 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886216507] [2022-01-31 22:10:15,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:10:15,296 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 22:10:15,296 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:10:15,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 22:10:15,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 22:10:15,296 INFO L87 Difference]: Start difference. First operand 367 states and 530 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:10:15,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:10:15,515 INFO L93 Difference]: Finished difference Result 850 states and 1263 transitions. [2022-01-31 22:10:15,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 22:10:15,516 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (3), 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 41 [2022-01-31 22:10:15,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:10:15,519 INFO L225 Difference]: With dead ends: 850 [2022-01-31 22:10:15,519 INFO L226 Difference]: Without dead ends: 473 [2022-01-31 22:10:15,520 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 22:10:15,521 INFO L933 BasicCegarLoop]: 234 mSDtfsCounter, 313 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 233 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 313 SdHoareTripleChecker+Valid, 241 SdHoareTripleChecker+Invalid, 279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-31 22:10:15,521 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [313 Valid, 241 Invalid, 279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 233 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-31 22:10:15,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 473 states. [2022-01-31 22:10:15,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 473 to 461. [2022-01-31 22:10:15,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 461 states, 456 states have (on average 1.4473684210526316) internal successors, (660), 456 states have internal predecessors, (660), 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 22:10:15,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 461 states to 461 states and 664 transitions. [2022-01-31 22:10:15,559 INFO L78 Accepts]: Start accepts. Automaton has 461 states and 664 transitions. Word has length 41 [2022-01-31 22:10:15,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:10:15,559 INFO L470 AbstractCegarLoop]: Abstraction has 461 states and 664 transitions. [2022-01-31 22:10:15,559 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:10:15,559 INFO L276 IsEmpty]: Start isEmpty. Operand 461 states and 664 transitions. [2022-01-31 22:10:15,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-01-31 22:10:15,560 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:10:15,560 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] [2022-01-31 22:10:15,560 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-31 22:10:15,560 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:10:15,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:10:15,560 INFO L85 PathProgramCache]: Analyzing trace with hash 1025513814, now seen corresponding path program 1 times [2022-01-31 22:10:15,560 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:10:15,561 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1813541342] [2022-01-31 22:10:15,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:10:15,561 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:10:15,562 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:10:15,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:10:15,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:10:15,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:10:15,583 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 22:10:15,584 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:10:15,584 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1813541342] [2022-01-31 22:10:15,584 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1813541342] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:10:15,584 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:10:15,584 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 22:10:15,584 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926174746] [2022-01-31 22:10:15,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:10:15,584 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 22:10:15,584 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:10:15,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 22:10:15,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 22:10:15,585 INFO L87 Difference]: Start difference. First operand 461 states and 664 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:10:15,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:10:15,761 INFO L93 Difference]: Finished difference Result 920 states and 1326 transitions. [2022-01-31 22:10:15,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 22:10:15,762 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (3), 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 41 [2022-01-31 22:10:15,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:10:15,763 INFO L225 Difference]: With dead ends: 920 [2022-01-31 22:10:15,763 INFO L226 Difference]: Without dead ends: 473 [2022-01-31 22:10:15,764 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 22:10:15,765 INFO L933 BasicCegarLoop]: 226 mSDtfsCounter, 221 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-31 22:10:15,765 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [221 Valid, 233 Invalid, 221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 213 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-31 22:10:15,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 473 states. [2022-01-31 22:10:15,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 473 to 471. [2022-01-31 22:10:15,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 471 states, 466 states have (on average 1.44206008583691) internal successors, (672), 466 states have internal predecessors, (672), 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 22:10:15,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 471 states to 471 states and 676 transitions. [2022-01-31 22:10:15,789 INFO L78 Accepts]: Start accepts. Automaton has 471 states and 676 transitions. Word has length 41 [2022-01-31 22:10:15,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:10:15,789 INFO L470 AbstractCegarLoop]: Abstraction has 471 states and 676 transitions. [2022-01-31 22:10:15,789 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:10:15,789 INFO L276 IsEmpty]: Start isEmpty. Operand 471 states and 676 transitions. [2022-01-31 22:10:15,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-01-31 22:10:15,790 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:10:15,790 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:10:15,790 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-31 22:10:15,790 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:10:15,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:10:15,790 INFO L85 PathProgramCache]: Analyzing trace with hash 564813646, now seen corresponding path program 1 times [2022-01-31 22:10:15,790 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:10:15,791 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [640422961] [2022-01-31 22:10:15,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:10:15,791 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:10:15,792 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:10:15,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:10:15,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:10:15,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:10:15,816 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 22:10:15,816 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:10:15,817 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [640422961] [2022-01-31 22:10:15,817 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [640422961] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:10:15,817 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:10:15,817 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 22:10:15,817 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228289548] [2022-01-31 22:10:15,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:10:15,817 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 22:10:15,817 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:10:15,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 22:10:15,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 22:10:15,818 INFO L87 Difference]: Start difference. First operand 471 states and 676 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:10:16,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:10:16,042 INFO L93 Difference]: Finished difference Result 1058 states and 1561 transitions. [2022-01-31 22:10:16,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 22:10:16,042 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 43 [2022-01-31 22:10:16,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:10:16,044 INFO L225 Difference]: With dead ends: 1058 [2022-01-31 22:10:16,044 INFO L226 Difference]: Without dead ends: 577 [2022-01-31 22:10:16,045 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 22:10:16,047 INFO L933 BasicCegarLoop]: 234 mSDtfsCounter, 352 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 226 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 352 SdHoareTripleChecker+Valid, 241 SdHoareTripleChecker+Invalid, 272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-31 22:10:16,047 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [352 Valid, 241 Invalid, 272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 226 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-31 22:10:16,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 577 states. [2022-01-31 22:10:16,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 577 to 533. [2022-01-31 22:10:16,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 533 states, 528 states have (on average 1.4621212121212122) internal successors, (772), 528 states have internal predecessors, (772), 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 22:10:16,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 533 states to 533 states and 776 transitions. [2022-01-31 22:10:16,088 INFO L78 Accepts]: Start accepts. Automaton has 533 states and 776 transitions. Word has length 43 [2022-01-31 22:10:16,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:10:16,088 INFO L470 AbstractCegarLoop]: Abstraction has 533 states and 776 transitions. [2022-01-31 22:10:16,088 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:10:16,088 INFO L276 IsEmpty]: Start isEmpty. Operand 533 states and 776 transitions. [2022-01-31 22:10:16,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-01-31 22:10:16,089 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:10:16,089 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] [2022-01-31 22:10:16,089 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-31 22:10:16,089 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:10:16,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:10:16,089 INFO L85 PathProgramCache]: Analyzing trace with hash 924583977, now seen corresponding path program 1 times [2022-01-31 22:10:16,090 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:10:16,090 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1471945215] [2022-01-31 22:10:16,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:10:16,090 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:10:16,096 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:10:16,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:10:16,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:10:16,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:10:16,134 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 22:10:16,135 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:10:16,135 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1471945215] [2022-01-31 22:10:16,135 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1471945215] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:10:16,135 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:10:16,135 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 22:10:16,135 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127646457] [2022-01-31 22:10:16,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:10:16,135 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 22:10:16,135 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:10:16,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 22:10:16,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 22:10:16,136 INFO L87 Difference]: Start difference. First operand 533 states and 776 transitions. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:10:16,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:10:16,333 INFO L93 Difference]: Finished difference Result 1555 states and 2264 transitions. [2022-01-31 22:10:16,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 22:10:16,333 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (3), 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 47 [2022-01-31 22:10:16,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:10:16,337 INFO L225 Difference]: With dead ends: 1555 [2022-01-31 22:10:16,337 INFO L226 Difference]: Without dead ends: 1036 [2022-01-31 22:10:16,338 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 22:10:16,339 INFO L933 BasicCegarLoop]: 409 mSDtfsCounter, 419 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 205 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 419 SdHoareTripleChecker+Valid, 416 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-31 22:10:16,339 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [419 Valid, 416 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 205 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-31 22:10:16,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1036 states. [2022-01-31 22:10:16,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1036 to 535. [2022-01-31 22:10:16,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 535 states, 530 states have (on average 1.460377358490566) internal successors, (774), 530 states have internal predecessors, (774), 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 22:10:16,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 535 states to 535 states and 778 transitions. [2022-01-31 22:10:16,377 INFO L78 Accepts]: Start accepts. Automaton has 535 states and 778 transitions. Word has length 47 [2022-01-31 22:10:16,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:10:16,378 INFO L470 AbstractCegarLoop]: Abstraction has 535 states and 778 transitions. [2022-01-31 22:10:16,378 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:10:16,378 INFO L276 IsEmpty]: Start isEmpty. Operand 535 states and 778 transitions. [2022-01-31 22:10:16,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-01-31 22:10:16,379 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:10:16,379 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] [2022-01-31 22:10:16,379 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-31 22:10:16,380 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:10:16,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:10:16,380 INFO L85 PathProgramCache]: Analyzing trace with hash 1945652331, now seen corresponding path program 1 times [2022-01-31 22:10:16,380 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:10:16,380 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2026908568] [2022-01-31 22:10:16,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:10:16,381 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:10:16,382 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:10:16,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:10:16,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:10:16,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:10:16,433 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 22:10:16,433 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:10:16,433 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2026908568] [2022-01-31 22:10:16,434 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [2026908568] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:10:16,434 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:10:16,434 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-31 22:10:16,434 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197897722] [2022-01-31 22:10:16,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:10:16,435 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-31 22:10:16,435 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:10:16,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-31 22:10:16,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-31 22:10:16,435 INFO L87 Difference]: Start difference. First operand 535 states and 778 transitions. Second operand has 6 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 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 22:10:16,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:10:16,745 INFO L93 Difference]: Finished difference Result 1175 states and 1726 transitions. [2022-01-31 22:10:16,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-31 22:10:16,745 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 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 47 [2022-01-31 22:10:16,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:10:16,747 INFO L225 Difference]: With dead ends: 1175 [2022-01-31 22:10:16,747 INFO L226 Difference]: Without dead ends: 642 [2022-01-31 22:10:16,748 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-01-31 22:10:16,749 INFO L933 BasicCegarLoop]: 181 mSDtfsCounter, 630 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 454 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 630 SdHoareTripleChecker+Valid, 198 SdHoareTripleChecker+Invalid, 497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 454 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-31 22:10:16,749 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [630 Valid, 198 Invalid, 497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 454 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-31 22:10:16,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 642 states. [2022-01-31 22:10:16,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 642 to 595. [2022-01-31 22:10:16,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 595 states, 590 states have (on average 1.4508474576271186) internal successors, (856), 590 states have internal predecessors, (856), 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 22:10:16,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 595 states to 595 states and 860 transitions. [2022-01-31 22:10:16,786 INFO L78 Accepts]: Start accepts. Automaton has 595 states and 860 transitions. Word has length 47 [2022-01-31 22:10:16,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:10:16,786 INFO L470 AbstractCegarLoop]: Abstraction has 595 states and 860 transitions. [2022-01-31 22:10:16,786 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 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 22:10:16,786 INFO L276 IsEmpty]: Start isEmpty. Operand 595 states and 860 transitions. [2022-01-31 22:10:16,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-01-31 22:10:16,787 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:10:16,787 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:10:16,787 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-31 22:10:16,787 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:10:16,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:10:16,788 INFO L85 PathProgramCache]: Analyzing trace with hash 427057800, now seen corresponding path program 1 times [2022-01-31 22:10:16,788 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:10:16,788 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [917805636] [2022-01-31 22:10:16,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:10:16,934 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 22:10:16,935 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2022-01-31 22:10:16,935 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:10:16,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:10:17,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:10:17,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:10:17,027 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 22:10:17,082 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:10:17,083 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [917805636] [2022-01-31 22:10:17,083 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [917805636] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:10:17,083 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:10:17,083 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-31 22:10:17,083 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063495818] [2022-01-31 22:10:17,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:10:17,083 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-31 22:10:17,083 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:10:17,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-31 22:10:17,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-01-31 22:10:17,084 INFO L87 Difference]: Start difference. First operand 595 states and 860 transitions. Second operand has 8 states, 7 states have (on average 10.142857142857142) internal successors, (71), 6 states have internal predecessors, (71), 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 22:10:17,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:10:17,585 INFO L93 Difference]: Finished difference Result 938 states and 1351 transitions. [2022-01-31 22:10:17,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-31 22:10:17,586 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 10.142857142857142) internal successors, (71), 6 states have internal predecessors, (71), 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 76 [2022-01-31 22:10:17,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:10:17,588 INFO L225 Difference]: With dead ends: 938 [2022-01-31 22:10:17,588 INFO L226 Difference]: Without dead ends: 357 [2022-01-31 22:10:17,589 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 48 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-01-31 22:10:17,589 INFO L933 BasicCegarLoop]: 238 mSDtfsCounter, 575 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 770 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 575 SdHoareTripleChecker+Valid, 260 SdHoareTripleChecker+Invalid, 788 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 770 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-31 22:10:17,589 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [575 Valid, 260 Invalid, 788 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 770 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-31 22:10:17,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2022-01-31 22:10:17,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 339. [2022-01-31 22:10:17,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339 states, 334 states have (on average 1.4341317365269461) internal successors, (479), 334 states have internal predecessors, (479), 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 22:10:17,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 483 transitions. [2022-01-31 22:10:17,622 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 483 transitions. Word has length 76 [2022-01-31 22:10:17,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:10:17,622 INFO L470 AbstractCegarLoop]: Abstraction has 339 states and 483 transitions. [2022-01-31 22:10:17,622 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 10.142857142857142) internal successors, (71), 6 states have internal predecessors, (71), 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 22:10:17,622 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 483 transitions. [2022-01-31 22:10:17,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-01-31 22:10:17,623 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:10:17,623 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, 1, 1, 1, 1, 1, 1, 1, 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 22:10:17,623 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-31 22:10:17,623 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:10:17,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:10:17,624 INFO L85 PathProgramCache]: Analyzing trace with hash -1660362567, now seen corresponding path program 1 times [2022-01-31 22:10:17,624 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:10:17,624 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1267996334] [2022-01-31 22:10:17,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:10:17,705 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 22:10:21,033 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 22:10:21,033 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:10:21,080 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 22:10:21,080 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:10:21,080 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:10:21,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:10:21,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:10:21,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:10:21,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:10:21,502 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:10:21,502 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1267996334] [2022-01-31 22:10:21,502 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1267996334] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:10:21,502 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:10:21,502 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-01-31 22:10:21,502 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625809244] [2022-01-31 22:10:21,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:10:21,503 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-31 22:10:21,503 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:10:21,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-31 22:10:21,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=130, Invalid=332, Unknown=0, NotChecked=0, Total=462 [2022-01-31 22:10:21,504 INFO L87 Difference]: Start difference. First operand 339 states and 483 transitions. Second operand has 22 states, 22 states have (on average 3.6818181818181817) internal successors, (81), 21 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:10:22,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:10:22,803 INFO L93 Difference]: Finished difference Result 1105 states and 1576 transitions. [2022-01-31 22:10:22,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-31 22:10:22,803 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 3.6818181818181817) internal successors, (81), 21 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 85 [2022-01-31 22:10:22,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:10:22,806 INFO L225 Difference]: With dead ends: 1105 [2022-01-31 22:10:22,806 INFO L226 Difference]: Without dead ends: 793 [2022-01-31 22:10:22,807 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 392 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=384, Invalid=1256, Unknown=0, NotChecked=0, Total=1640 [2022-01-31 22:10:22,807 INFO L933 BasicCegarLoop]: 247 mSDtfsCounter, 1102 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 2206 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1102 SdHoareTripleChecker+Valid, 269 SdHoareTripleChecker+Invalid, 2252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 2206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-31 22:10:22,807 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1102 Valid, 269 Invalid, 2252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 2206 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-31 22:10:22,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 793 states. [2022-01-31 22:10:22,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 793 to 683. [2022-01-31 22:10:22,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 683 states, 678 states have (on average 1.4321533923303835) internal successors, (971), 678 states have internal predecessors, (971), 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 22:10:22,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 683 states to 683 states and 975 transitions. [2022-01-31 22:10:22,869 INFO L78 Accepts]: Start accepts. Automaton has 683 states and 975 transitions. Word has length 85 [2022-01-31 22:10:22,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:10:22,870 INFO L470 AbstractCegarLoop]: Abstraction has 683 states and 975 transitions. [2022-01-31 22:10:22,870 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 3.6818181818181817) internal successors, (81), 21 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:10:22,870 INFO L276 IsEmpty]: Start isEmpty. Operand 683 states and 975 transitions. [2022-01-31 22:10:22,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-01-31 22:10:22,874 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:10:22,874 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:10:22,874 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-31 22:10:22,875 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:10:22,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:10:22,875 INFO L85 PathProgramCache]: Analyzing trace with hash 2054020388, now seen corresponding path program 1 times [2022-01-31 22:10:22,875 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:10:22,875 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1844794652] [2022-01-31 22:10:22,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:10:22,880 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:10:22,880 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:10:22,880 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:10:22,881 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:10:22,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:10:22,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:10:22,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:10:22,905 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 22:10:22,905 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:10:22,905 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1844794652] [2022-01-31 22:10:22,905 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1844794652] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:10:22,906 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:10:22,906 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 22:10:22,906 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954411227] [2022-01-31 22:10:22,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:10:22,906 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 22:10:22,906 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:10:22,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 22:10:22,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 22:10:22,907 INFO L87 Difference]: Start difference. First operand 683 states and 975 transitions. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 3 states have internal predecessors, (66), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:10:22,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:10:22,998 INFO L93 Difference]: Finished difference Result 1356 states and 1936 transitions. [2022-01-31 22:10:22,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 22:10:22,999 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 3 states have internal predecessors, (66), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 87 [2022-01-31 22:10:22,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:10:23,001 INFO L225 Difference]: With dead ends: 1356 [2022-01-31 22:10:23,001 INFO L226 Difference]: Without dead ends: 687 [2022-01-31 22:10:23,002 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 22:10:23,002 INFO L933 BasicCegarLoop]: 223 mSDtfsCounter, 405 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 405 SdHoareTripleChecker+Valid, 230 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-31 22:10:23,003 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [405 Valid, 230 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-31 22:10:23,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 687 states. [2022-01-31 22:10:23,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 687 to 683. [2022-01-31 22:10:23,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 683 states, 678 states have (on average 1.4026548672566372) internal successors, (951), 678 states have internal predecessors, (951), 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 22:10:23,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 683 states to 683 states and 955 transitions. [2022-01-31 22:10:23,082 INFO L78 Accepts]: Start accepts. Automaton has 683 states and 955 transitions. Word has length 87 [2022-01-31 22:10:23,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:10:23,082 INFO L470 AbstractCegarLoop]: Abstraction has 683 states and 955 transitions. [2022-01-31 22:10:23,082 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 3 states have internal predecessors, (66), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:10:23,082 INFO L276 IsEmpty]: Start isEmpty. Operand 683 states and 955 transitions. [2022-01-31 22:10:23,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-01-31 22:10:23,084 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:10:23,084 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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, 1, 1, 1, 1] [2022-01-31 22:10:23,084 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-31 22:10:23,084 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:10:23,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:10:23,084 INFO L85 PathProgramCache]: Analyzing trace with hash 1292005366, now seen corresponding path program 1 times [2022-01-31 22:10:23,084 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:10:23,085 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [238114378] [2022-01-31 22:10:23,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:10:23,088 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:10:23,088 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:10:23,089 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:10:23,089 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:10:23,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:10:23,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:10:23,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:10:23,116 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 22:10:23,116 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:10:23,116 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [238114378] [2022-01-31 22:10:23,116 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [238114378] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:10:23,117 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:10:23,117 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 22:10:23,117 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368848310] [2022-01-31 22:10:23,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:10:23,117 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 22:10:23,117 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:10:23,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 22:10:23,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 22:10:23,117 INFO L87 Difference]: Start difference. First operand 683 states and 955 transitions. Second operand has 4 states, 4 states have (on average 21.0) internal successors, (84), 3 states have internal predecessors, (84), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:10:23,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:10:23,328 INFO L93 Difference]: Finished difference Result 1058 states and 1478 transitions. [2022-01-31 22:10:23,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 22:10:23,328 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 3 states have internal predecessors, (84), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 90 [2022-01-31 22:10:23,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:10:23,330 INFO L225 Difference]: With dead ends: 1058 [2022-01-31 22:10:23,330 INFO L226 Difference]: Without dead ends: 389 [2022-01-31 22:10:23,332 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 22:10:23,332 INFO L933 BasicCegarLoop]: 217 mSDtfsCounter, 248 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 231 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 248 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-31 22:10:23,333 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [248 Valid, 224 Invalid, 243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 231 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-31 22:10:23,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states. [2022-01-31 22:10:23,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 370. [2022-01-31 22:10:23,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 370 states, 365 states have (on average 1.3917808219178083) internal successors, (508), 365 states have internal predecessors, (508), 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 22:10:23,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 512 transitions. [2022-01-31 22:10:23,362 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 512 transitions. Word has length 90 [2022-01-31 22:10:23,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:10:23,362 INFO L470 AbstractCegarLoop]: Abstraction has 370 states and 512 transitions. [2022-01-31 22:10:23,362 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 3 states have internal predecessors, (84), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:10:23,362 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 512 transitions. [2022-01-31 22:10:23,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-01-31 22:10:23,363 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:10:23,363 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:10:23,363 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-31 22:10:23,363 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:10:23,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:10:23,364 INFO L85 PathProgramCache]: Analyzing trace with hash 1757586639, now seen corresponding path program 1 times [2022-01-31 22:10:23,364 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:10:23,364 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [176079472] [2022-01-31 22:10:23,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:10:23,422 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 22:10:23,561 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 22:10:26,687 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 22:10:26,687 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:10:26,807 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 22:10:26,866 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 22:10:26,866 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:10:26,866 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:10:26,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:10:26,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:10:26,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:10:26,930 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 22:10:27,587 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:10:27,587 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [176079472] [2022-01-31 22:10:27,587 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [176079472] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:10:27,587 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:10:27,587 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-01-31 22:10:27,587 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165533651] [2022-01-31 22:10:27,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:10:27,588 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-01-31 22:10:27,588 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:10:27,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-01-31 22:10:27,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=171, Invalid=641, Unknown=0, NotChecked=0, Total=812 [2022-01-31 22:10:27,588 INFO L87 Difference]: Start difference. First operand 370 states and 512 transitions. Second operand has 29 states, 29 states have (on average 3.5517241379310347) internal successors, (103), 28 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:10:30,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:10:30,515 INFO L93 Difference]: Finished difference Result 1457 states and 2028 transitions. [2022-01-31 22:10:30,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-01-31 22:10:30,516 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 3.5517241379310347) internal successors, (103), 28 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 107 [2022-01-31 22:10:30,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:10:30,519 INFO L225 Difference]: With dead ends: 1457 [2022-01-31 22:10:30,519 INFO L226 Difference]: Without dead ends: 1122 [2022-01-31 22:10:30,521 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 841 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=507, Invalid=2463, Unknown=0, NotChecked=0, Total=2970 [2022-01-31 22:10:30,521 INFO L933 BasicCegarLoop]: 345 mSDtfsCounter, 1409 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 6176 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1409 SdHoareTripleChecker+Valid, 377 SdHoareTripleChecker+Invalid, 6240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 6176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-01-31 22:10:30,521 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1409 Valid, 377 Invalid, 6240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 6176 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-01-31 22:10:30,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1122 states. [2022-01-31 22:10:30,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1122 to 1030. [2022-01-31 22:10:30,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1030 states, 1025 states have (on average 1.3834146341463414) internal successors, (1418), 1025 states have internal predecessors, (1418), 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 22:10:30,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1030 states to 1030 states and 1422 transitions. [2022-01-31 22:10:30,614 INFO L78 Accepts]: Start accepts. Automaton has 1030 states and 1422 transitions. Word has length 107 [2022-01-31 22:10:30,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:10:30,614 INFO L470 AbstractCegarLoop]: Abstraction has 1030 states and 1422 transitions. [2022-01-31 22:10:30,614 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 3.5517241379310347) internal successors, (103), 28 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:10:30,614 INFO L276 IsEmpty]: Start isEmpty. Operand 1030 states and 1422 transitions. [2022-01-31 22:10:30,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-01-31 22:10:30,616 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:10:30,616 INFO L514 BasicCegarLoop]: trace histogram [4, 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] [2022-01-31 22:10:30,616 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-31 22:10:30,616 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:10:30,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:10:30,616 INFO L85 PathProgramCache]: Analyzing trace with hash -1426628460, now seen corresponding path program 1 times [2022-01-31 22:10:30,617 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:10:30,617 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1080005540] [2022-01-31 22:10:30,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:10:30,727 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 22:10:30,727 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:10:30,727 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:10:33,812 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 22:10:33,812 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:10:33,933 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 22:10:34,052 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 22:10:34,052 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:10:34,053 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:10:34,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:10:34,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:10:34,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:10:34,104 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 22:10:34,880 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:10:34,880 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1080005540] [2022-01-31 22:10:34,880 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1080005540] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:10:34,880 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:10:34,880 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2022-01-31 22:10:34,880 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543675656] [2022-01-31 22:10:34,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:10:34,881 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-01-31 22:10:34,881 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:10:34,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-01-31 22:10:34,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=822, Unknown=0, NotChecked=0, Total=930 [2022-01-31 22:10:34,882 INFO L87 Difference]: Start difference. First operand 1030 states and 1422 transitions. Second operand has 31 states, 30 states have (on average 3.466666666666667) internal successors, (104), 29 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 22:10:39,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:10:39,016 INFO L93 Difference]: Finished difference Result 3220 states and 4392 transitions. [2022-01-31 22:10:39,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-01-31 22:10:39,016 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 30 states have (on average 3.466666666666667) internal successors, (104), 29 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 22:10:39,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:10:39,021 INFO L225 Difference]: With dead ends: 3220 [2022-01-31 22:10:39,021 INFO L226 Difference]: Without dead ends: 2202 [2022-01-31 22:10:39,023 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 62 SyntacticMatches, 1 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 976 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=391, Invalid=3269, Unknown=0, NotChecked=0, Total=3660 [2022-01-31 22:10:39,023 INFO L933 BasicCegarLoop]: 440 mSDtfsCounter, 991 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 8696 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 991 SdHoareTripleChecker+Valid, 522 SdHoareTripleChecker+Invalid, 8755 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 8696 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-01-31 22:10:39,024 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [991 Valid, 522 Invalid, 8755 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 8696 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-01-31 22:10:39,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2202 states. [2022-01-31 22:10:39,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2202 to 1090. [2022-01-31 22:10:39,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1090 states, 1085 states have (on average 1.3658986175115206) internal successors, (1482), 1085 states have internal predecessors, (1482), 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 22:10:39,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1090 states to 1090 states and 1486 transitions. [2022-01-31 22:10:39,132 INFO L78 Accepts]: Start accepts. Automaton has 1090 states and 1486 transitions. Word has length 108 [2022-01-31 22:10:39,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:10:39,132 INFO L470 AbstractCegarLoop]: Abstraction has 1090 states and 1486 transitions. [2022-01-31 22:10:39,132 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 30 states have (on average 3.466666666666667) internal successors, (104), 29 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 22:10:39,132 INFO L276 IsEmpty]: Start isEmpty. Operand 1090 states and 1486 transitions. [2022-01-31 22:10:39,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-31 22:10:39,134 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:10:39,134 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:10:39,134 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-31 22:10:39,134 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:10:39,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:10:39,134 INFO L85 PathProgramCache]: Analyzing trace with hash 19540798, now seen corresponding path program 1 times [2022-01-31 22:10:39,134 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:10:39,134 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2122849130] [2022-01-31 22:10:39,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:10:39,250 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 22:10:39,251 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:10:39,251 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:10:42,364 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 22:10:42,364 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:10:42,493 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 22:10:42,594 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 22:10:42,594 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:10:42,594 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:10:42,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:10:42,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:10:42,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:10:42,647 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 22:10:43,434 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:10:43,434 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2122849130] [2022-01-31 22:10:43,434 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [2122849130] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:10:43,434 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:10:43,434 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [32] imperfect sequences [] total 32 [2022-01-31 22:10:43,434 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594461860] [2022-01-31 22:10:43,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:10:43,435 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-01-31 22:10:43,435 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:10:43,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-01-31 22:10:43,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=881, Unknown=0, NotChecked=0, Total=992 [2022-01-31 22:10:43,435 INFO L87 Difference]: Start difference. First operand 1090 states and 1486 transitions. Second operand has 32 states, 31 states have (on average 3.3870967741935485) internal successors, (105), 30 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 22:10:47,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:10:47,509 INFO L93 Difference]: Finished difference Result 3219 states and 4390 transitions. [2022-01-31 22:10:47,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-01-31 22:10:47,509 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 31 states have (on average 3.3870967741935485) internal successors, (105), 30 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 22:10:47,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:10:47,514 INFO L225 Difference]: With dead ends: 3219 [2022-01-31 22:10:47,514 INFO L226 Difference]: Without dead ends: 2197 [2022-01-31 22:10:47,517 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 62 SyntacticMatches, 1 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1068 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=402, Invalid=3504, Unknown=0, NotChecked=0, Total=3906 [2022-01-31 22:10:47,517 INFO L933 BasicCegarLoop]: 440 mSDtfsCounter, 967 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 7854 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 967 SdHoareTripleChecker+Valid, 507 SdHoareTripleChecker+Invalid, 7903 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 7854 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-01-31 22:10:47,517 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [967 Valid, 507 Invalid, 7903 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 7854 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-01-31 22:10:47,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2197 states. [2022-01-31 22:10:47,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2197 to 1087. [2022-01-31 22:10:47,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1087 states, 1082 states have (on average 1.365988909426987) internal successors, (1478), 1082 states have internal predecessors, (1478), 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 22:10:47,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1087 states to 1087 states and 1482 transitions. [2022-01-31 22:10:47,646 INFO L78 Accepts]: Start accepts. Automaton has 1087 states and 1482 transitions. Word has length 109 [2022-01-31 22:10:47,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:10:47,646 INFO L470 AbstractCegarLoop]: Abstraction has 1087 states and 1482 transitions. [2022-01-31 22:10:47,646 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 31 states have (on average 3.3870967741935485) internal successors, (105), 30 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 22:10:47,646 INFO L276 IsEmpty]: Start isEmpty. Operand 1087 states and 1482 transitions. [2022-01-31 22:10:47,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-01-31 22:10:47,648 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:10:47,648 INFO L514 BasicCegarLoop]: trace histogram [4, 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] [2022-01-31 22:10:47,648 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-31 22:10:47,648 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:10:47,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:10:47,649 INFO L85 PathProgramCache]: Analyzing trace with hash -128096056, now seen corresponding path program 1 times [2022-01-31 22:10:47,649 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:10:47,649 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1636143816] [2022-01-31 22:10:47,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:10:47,764 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 22:10:47,766 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:10:47,766 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:10:50,873 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 22:10:50,874 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:10:53,983 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 3 HavocedVariables, 9 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=7, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:10:54,096 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 22:10:54,097 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:10:54,097 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:10:54,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:10:54,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:10:54,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:10:54,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:10:54,986 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:10:54,986 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1636143816] [2022-01-31 22:10:54,986 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1636143816] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:10:54,986 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:10:54,986 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [32] imperfect sequences [] total 32 [2022-01-31 22:10:54,986 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401952400] [2022-01-31 22:10:54,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:10:54,987 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-01-31 22:10:54,987 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:10:54,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-01-31 22:10:54,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=881, Unknown=0, NotChecked=0, Total=992 [2022-01-31 22:10:54,987 INFO L87 Difference]: Start difference. First operand 1087 states and 1482 transitions. Second operand has 32 states, 31 states have (on average 3.4193548387096775) internal successors, (106), 30 states have internal predecessors, (106), 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 22:10:59,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:10:59,531 INFO L93 Difference]: Finished difference Result 3228 states and 4404 transitions. [2022-01-31 22:10:59,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-01-31 22:10:59,531 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 31 states have (on average 3.4193548387096775) internal successors, (106), 30 states have internal predecessors, (106), 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 110 [2022-01-31 22:10:59,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:10:59,537 INFO L225 Difference]: With dead ends: 3228 [2022-01-31 22:10:59,537 INFO L226 Difference]: Without dead ends: 2210 [2022-01-31 22:10:59,539 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 63 SyntacticMatches, 1 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1068 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=402, Invalid=3504, Unknown=0, NotChecked=0, Total=3906 [2022-01-31 22:10:59,539 INFO L933 BasicCegarLoop]: 444 mSDtfsCounter, 963 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 9256 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 963 SdHoareTripleChecker+Valid, 536 SdHoareTripleChecker+Invalid, 9311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 9256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-01-31 22:10:59,539 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [963 Valid, 536 Invalid, 9311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 9256 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-01-31 22:10:59,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2210 states. [2022-01-31 22:10:59,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2210 to 1097. [2022-01-31 22:10:59,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1097 states, 1092 states have (on average 1.3644688644688645) internal successors, (1490), 1092 states have internal predecessors, (1490), 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 22:10:59,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1097 states to 1097 states and 1494 transitions. [2022-01-31 22:10:59,671 INFO L78 Accepts]: Start accepts. Automaton has 1097 states and 1494 transitions. Word has length 110 [2022-01-31 22:10:59,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:10:59,671 INFO L470 AbstractCegarLoop]: Abstraction has 1097 states and 1494 transitions. [2022-01-31 22:10:59,671 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 31 states have (on average 3.4193548387096775) internal successors, (106), 30 states have internal predecessors, (106), 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 22:10:59,671 INFO L276 IsEmpty]: Start isEmpty. Operand 1097 states and 1494 transitions. [2022-01-31 22:10:59,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-01-31 22:10:59,673 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:10:59,673 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-01-31 22:10:59,673 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-01-31 22:10:59,673 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:10:59,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:10:59,674 INFO L85 PathProgramCache]: Analyzing trace with hash -328638779, now seen corresponding path program 1 times [2022-01-31 22:10:59,674 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:10:59,674 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1271787377] [2022-01-31 22:10:59,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:10:59,721 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 22:11:02,843 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 22:11:02,919 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 22:11:02,919 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:11:02,964 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 22:11:03,047 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 22:11:03,048 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:11:03,048 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:11:03,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:11:03,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:11:03,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:11:03,077 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 22:11:03,482 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:11:03,483 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1271787377] [2022-01-31 22:11:03,483 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1271787377] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:11:03,483 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:11:03,483 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-31 22:11:03,483 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804336463] [2022-01-31 22:11:03,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:11:03,483 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-31 22:11:03,483 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:11:03,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-31 22:11:03,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=150, Invalid=450, Unknown=0, NotChecked=0, Total=600 [2022-01-31 22:11:03,484 INFO L87 Difference]: Start difference. First operand 1097 states and 1494 transitions. Second operand has 25 states, 25 states have (on average 4.16) internal successors, (104), 24 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:11:05,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:11:05,166 INFO L93 Difference]: Finished difference Result 2540 states and 3478 transitions. [2022-01-31 22:11:05,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-01-31 22:11:05,166 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.16) internal successors, (104), 24 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 111 [2022-01-31 22:11:05,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:11:05,170 INFO L225 Difference]: With dead ends: 2540 [2022-01-31 22:11:05,170 INFO L226 Difference]: Without dead ends: 1524 [2022-01-31 22:11:05,172 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 558 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=444, Invalid=1718, Unknown=0, NotChecked=0, Total=2162 [2022-01-31 22:11:05,172 INFO L933 BasicCegarLoop]: 371 mSDtfsCounter, 870 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 3130 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 870 SdHoareTripleChecker+Valid, 383 SdHoareTripleChecker+Invalid, 3164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 3130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-01-31 22:11:05,172 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [870 Valid, 383 Invalid, 3164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 3130 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-01-31 22:11:05,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1524 states. [2022-01-31 22:11:05,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1524 to 1456. [2022-01-31 22:11:05,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1456 states, 1451 states have (on average 1.3638869745003446) internal successors, (1979), 1451 states have internal predecessors, (1979), 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 22:11:05,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1456 states to 1456 states and 1983 transitions. [2022-01-31 22:11:05,381 INFO L78 Accepts]: Start accepts. Automaton has 1456 states and 1983 transitions. Word has length 111 [2022-01-31 22:11:05,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:11:05,382 INFO L470 AbstractCegarLoop]: Abstraction has 1456 states and 1983 transitions. [2022-01-31 22:11:05,382 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.16) internal successors, (104), 24 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:11:05,382 INFO L276 IsEmpty]: Start isEmpty. Operand 1456 states and 1983 transitions. [2022-01-31 22:11:05,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-01-31 22:11:05,383 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:11:05,384 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:11:05,384 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-01-31 22:11:05,384 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:11:05,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:11:05,384 INFO L85 PathProgramCache]: Analyzing trace with hash -1620714080, now seen corresponding path program 1 times [2022-01-31 22:11:05,384 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:11:05,384 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [766901947] [2022-01-31 22:11:05,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:11:05,501 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 22:11:05,501 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:11:05,501 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:11:08,583 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 22:11:08,583 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:11:08,701 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 22:11:08,702 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:11:08,702 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:11:08,702 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:11:08,702 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:11:08,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:11:08,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:11:08,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:11:08,754 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 22:11:09,607 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:11:09,607 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [766901947] [2022-01-31 22:11:09,607 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [766901947] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:11:09,607 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:11:09,607 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [] total 34 [2022-01-31 22:11:09,607 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301619630] [2022-01-31 22:11:09,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:11:09,608 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-01-31 22:11:09,608 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:11:09,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-01-31 22:11:09,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=126, Invalid=996, Unknown=0, NotChecked=0, Total=1122 [2022-01-31 22:11:09,609 INFO L87 Difference]: Start difference. First operand 1456 states and 1983 transitions. Second operand has 34 states, 33 states have (on average 3.272727272727273) internal successors, (108), 32 states have internal predecessors, (108), 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 22:11:14,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:11:14,952 INFO L93 Difference]: Finished difference Result 4383 states and 5959 transitions. [2022-01-31 22:11:14,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-01-31 22:11:14,953 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 33 states have (on average 3.272727272727273) internal successors, (108), 32 states have internal predecessors, (108), 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 112 [2022-01-31 22:11:14,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:11:14,966 INFO L225 Difference]: With dead ends: 4383 [2022-01-31 22:11:14,966 INFO L226 Difference]: Without dead ends: 3006 [2022-01-31 22:11:14,969 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 63 SyntacticMatches, 1 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1244 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=451, Invalid=3971, Unknown=0, NotChecked=0, Total=4422 [2022-01-31 22:11:14,969 INFO L933 BasicCegarLoop]: 447 mSDtfsCounter, 918 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 10207 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 918 SdHoareTripleChecker+Valid, 549 SdHoareTripleChecker+Invalid, 10265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 10207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-01-31 22:11:14,970 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [918 Valid, 549 Invalid, 10265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 10207 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-01-31 22:11:14,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3006 states. [2022-01-31 22:11:15,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3006 to 1508. [2022-01-31 22:11:15,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1508 states, 1503 states have (on average 1.3546240851630074) internal successors, (2036), 1503 states have internal predecessors, (2036), 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 22:11:15,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1508 states to 1508 states and 2040 transitions. [2022-01-31 22:11:15,185 INFO L78 Accepts]: Start accepts. Automaton has 1508 states and 2040 transitions. Word has length 112 [2022-01-31 22:11:15,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:11:15,185 INFO L470 AbstractCegarLoop]: Abstraction has 1508 states and 2040 transitions. [2022-01-31 22:11:15,185 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 33 states have (on average 3.272727272727273) internal successors, (108), 32 states have internal predecessors, (108), 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 22:11:15,185 INFO L276 IsEmpty]: Start isEmpty. Operand 1508 states and 2040 transitions. [2022-01-31 22:11:15,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-01-31 22:11:15,188 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:11:15,188 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:11:15,188 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-01-31 22:11:15,188 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:11:15,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:11:15,188 INFO L85 PathProgramCache]: Analyzing trace with hash -2008168032, now seen corresponding path program 2 times [2022-01-31 22:11:15,188 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:11:15,188 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [101638737] [2022-01-31 22:11:15,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:11:15,192 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:11:15,192 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:11:15,192 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:11:15,192 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:11:15,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:11:15,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:11:15,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:11:15,221 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 22:11:15,221 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:11:15,221 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [101638737] [2022-01-31 22:11:15,221 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [101638737] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:11:15,221 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:11:15,221 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 22:11:15,221 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036054945] [2022-01-31 22:11:15,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:11:15,221 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 22:11:15,222 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:11:15,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 22:11:15,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 22:11:15,222 INFO L87 Difference]: Start difference. First operand 1508 states and 2040 transitions. Second operand has 4 states, 4 states have (on average 20.0) internal successors, (80), 3 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:11:15,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:11:15,829 INFO L93 Difference]: Finished difference Result 4335 states and 5889 transitions. [2022-01-31 22:11:15,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 22:11:15,831 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 3 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 112 [2022-01-31 22:11:15,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:11:15,839 INFO L225 Difference]: With dead ends: 4335 [2022-01-31 22:11:15,839 INFO L226 Difference]: Without dead ends: 2912 [2022-01-31 22:11:15,841 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 22:11:15,842 INFO L933 BasicCegarLoop]: 220 mSDtfsCounter, 597 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 597 SdHoareTripleChecker+Valid, 227 SdHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-31 22:11:15,842 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [597 Valid, 227 Invalid, 220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 214 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-31 22:11:15,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2912 states. [2022-01-31 22:11:16,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2912 to 2902. [2022-01-31 22:11:16,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2902 states, 2897 states have (on average 1.3431135657576803) internal successors, (3891), 2897 states have internal predecessors, (3891), 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 22:11:16,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2902 states to 2902 states and 3895 transitions. [2022-01-31 22:11:16,297 INFO L78 Accepts]: Start accepts. Automaton has 2902 states and 3895 transitions. Word has length 112 [2022-01-31 22:11:16,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:11:16,297 INFO L470 AbstractCegarLoop]: Abstraction has 2902 states and 3895 transitions. [2022-01-31 22:11:16,297 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 3 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:11:16,297 INFO L276 IsEmpty]: Start isEmpty. Operand 2902 states and 3895 transitions. [2022-01-31 22:11:16,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-01-31 22:11:16,301 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:11:16,301 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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 22:11:16,301 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-01-31 22:11:16,301 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:11:16,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:11:16,301 INFO L85 PathProgramCache]: Analyzing trace with hash -1216113728, now seen corresponding path program 1 times [2022-01-31 22:11:16,302 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:11:16,302 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [435523669] [2022-01-31 22:11:16,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:11:16,424 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 22:11:16,532 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 22:11:48,875 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 10 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=8, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 22:11:48,876 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:11:48,985 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 22:11:49,093 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 22:11:49,093 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-01-31 22:11:49,093 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:11:49,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:11:49,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:11:49,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:11:49,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:11:50,319 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:11:50,320 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [435523669] [2022-01-31 22:11:50,320 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [435523669] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:11:50,320 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:11:50,320 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [35] imperfect sequences [] total 35 [2022-01-31 22:11:50,320 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581328449] [2022-01-31 22:11:50,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:11:50,320 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2022-01-31 22:11:50,320 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:11:50,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2022-01-31 22:11:50,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=135, Invalid=1055, Unknown=0, NotChecked=0, Total=1190 [2022-01-31 22:11:50,321 INFO L87 Difference]: Start difference. First operand 2902 states and 3895 transitions. Second operand has 35 states, 34 states have (on average 3.2058823529411766) internal successors, (109), 33 states have internal predecessors, (109), 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 22:11:55,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:11:55,276 INFO L93 Difference]: Finished difference Result 7241 states and 9690 transitions. [2022-01-31 22:11:55,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-01-31 22:11:55,277 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 34 states have (on average 3.2058823529411766) internal successors, (109), 33 states have internal predecessors, (109), 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 113 [2022-01-31 22:11:55,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:11:55,290 INFO L225 Difference]: With dead ends: 7241 [2022-01-31 22:11:55,291 INFO L226 Difference]: Without dead ends: 5885 [2022-01-31 22:11:55,294 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 51 SyntacticMatches, 13 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1500 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=480, Invalid=4212, Unknown=0, NotChecked=0, Total=4692 [2022-01-31 22:11:55,294 INFO L933 BasicCegarLoop]: 445 mSDtfsCounter, 918 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 8252 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 918 SdHoareTripleChecker+Valid, 527 SdHoareTripleChecker+Invalid, 8310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 8252 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-01-31 22:11:55,294 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [918 Valid, 527 Invalid, 8310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 8252 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-01-31 22:11:55,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5885 states. [2022-01-31 22:11:55,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5885 to 2954. [2022-01-31 22:11:55,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2954 states, 2949 states have (on average 1.3384198033231605) internal successors, (3947), 2949 states have internal predecessors, (3947), 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 22:11:55,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2954 states to 2954 states and 3951 transitions. [2022-01-31 22:11:55,801 INFO L78 Accepts]: Start accepts. Automaton has 2954 states and 3951 transitions. Word has length 113 [2022-01-31 22:11:55,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:11:55,801 INFO L470 AbstractCegarLoop]: Abstraction has 2954 states and 3951 transitions. [2022-01-31 22:11:55,801 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 34 states have (on average 3.2058823529411766) internal successors, (109), 33 states have internal predecessors, (109), 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 22:11:55,801 INFO L276 IsEmpty]: Start isEmpty. Operand 2954 states and 3951 transitions. [2022-01-31 22:11:55,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-01-31 22:11:55,805 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:11:55,805 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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 22:11:55,805 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-01-31 22:11:55,805 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:11:55,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:11:55,805 INFO L85 PathProgramCache]: Analyzing trace with hash -479503956, now seen corresponding path program 2 times [2022-01-31 22:11:55,805 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:11:55,805 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1856394195] [2022-01-31 22:11:55,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:11:55,809 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 22:11:55,809 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-01-31 22:11:55,809 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:11:55,810 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:11:55,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-31 22:11:55,820 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-01-31 22:11:55,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-31 22:11:55,865 INFO L133 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2022-01-31 22:11:55,865 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-01-31 22:11:55,867 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-01-31 22:11:55,868 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-01-31 22:11:55,870 INFO L732 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:11:55,871 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-01-31 22:11:55,901 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.01 10:11:55 BoogieIcfgContainer [2022-01-31 22:11:55,901 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-31 22:11:55,903 INFO L158 Benchmark]: Toolchain (without parser) took 103975.56ms. Allocated memory was 185.6MB in the beginning and 571.5MB in the end (delta: 385.9MB). Free memory was 129.2MB in the beginning and 456.4MB in the end (delta: -327.2MB). Peak memory consumption was 58.8MB. Max. memory is 8.0GB. [2022-01-31 22:11:55,903 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 185.6MB. Free memory is still 146.1MB. There was no memory consumed. Max. memory is 8.0GB. [2022-01-31 22:11:55,903 INFO L158 Benchmark]: CACSL2BoogieTranslator took 287.95ms. Allocated memory was 185.6MB in the beginning and 228.6MB in the end (delta: 43.0MB). Free memory was 129.0MB in the beginning and 197.4MB in the end (delta: -68.4MB). Peak memory consumption was 11.2MB. Max. memory is 8.0GB. [2022-01-31 22:11:55,903 INFO L158 Benchmark]: Boogie Preprocessor took 45.17ms. Allocated memory is still 228.6MB. Free memory was 197.4MB in the beginning and 194.8MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-01-31 22:11:55,904 INFO L158 Benchmark]: RCFGBuilder took 538.47ms. Allocated memory is still 228.6MB. Free memory was 194.8MB in the beginning and 164.4MB in the end (delta: 30.4MB). Peak memory consumption was 30.4MB. Max. memory is 8.0GB. [2022-01-31 22:11:55,904 INFO L158 Benchmark]: TraceAbstraction took 103098.26ms. Allocated memory was 228.6MB in the beginning and 571.5MB in the end (delta: 342.9MB). Free memory was 164.4MB in the beginning and 456.4MB in the end (delta: -292.0MB). Peak memory consumption was 51.9MB. Max. memory is 8.0GB. [2022-01-31 22:11:55,906 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 185.6MB. Free memory is still 146.1MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 287.95ms. Allocated memory was 185.6MB in the beginning and 228.6MB in the end (delta: 43.0MB). Free memory was 129.0MB in the beginning and 197.4MB in the end (delta: -68.4MB). Peak memory consumption was 11.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 45.17ms. Allocated memory is still 228.6MB. Free memory was 197.4MB in the beginning and 194.8MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 538.47ms. Allocated memory is still 228.6MB. Free memory was 194.8MB in the beginning and 164.4MB in the end (delta: 30.4MB). Peak memory consumption was 30.4MB. Max. memory is 8.0GB. * TraceAbstraction took 103098.26ms. Allocated memory was 228.6MB in the beginning and 571.5MB in the end (delta: 342.9MB). Free memory was 164.4MB in the beginning and 456.4MB in the end (delta: -292.0MB). Peak memory consumption was 51.9MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 654]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L659] int s ; [L660] int tmp ; [L664] s = 8464 [L665] CALL ssl3_accept(s) [L23] int s__info_callback = __VERIFIER_nondet_int() ; [L24] int s__in_handshake = __VERIFIER_nondet_int() ; [L25] int s__state ; [L26] int s__new_session ; [L27] int s__server ; [L28] int s__version = __VERIFIER_nondet_int() ; [L29] int s__type ; [L30] int s__init_num ; [L31] int s__hit = __VERIFIER_nondet_int() ; [L32] int s__rwstate ; [L33] int s__init_buf___0 = 1; [L34] int s__debug = __VERIFIER_nondet_int() ; [L35] int s__shutdown ; [L36] int s__cert = __VERIFIER_nondet_int() ; [L37] int s__options = __VERIFIER_nondet_int() ; [L38] int s__verify_mode = __VERIFIER_nondet_int() ; [L39] int s__session__peer = __VERIFIER_nondet_int() ; [L40] int s__cert__pkeys__AT0__privatekey = __VERIFIER_nondet_int() ; [L41] int s__ctx__info_callback = __VERIFIER_nondet_int() ; [L42] int s__ctx__stats__sess_accept_renegotiate = __VERIFIER_nondet_int() ; [L43] int s__ctx__stats__sess_accept = __VERIFIER_nondet_int() ; [L44] int s__ctx__stats__sess_accept_good = __VERIFIER_nondet_int() ; [L45] int s__s3__tmp__cert_request ; [L46] int s__s3__tmp__reuse_message ; [L47] int s__s3__tmp__use_rsa_tmp ; [L48] int s__s3__tmp__new_cipher = __VERIFIER_nondet_int() ; [L49] int s__s3__tmp__new_cipher__algorithms ; [L50] int s__s3__tmp__next_state___0 ; [L51] int s__s3__tmp__new_cipher__algo_strength ; [L52] int s__session__cipher ; [L53] int buf ; [L54] unsigned long l ; [L55] unsigned long Time ; [L56] unsigned long tmp ; [L57] int cb ; [L58] long num1 = __VERIFIER_nondet_long() ; [L59] int ret ; [L60] int new_state ; [L61] int state ; [L62] int skip ; [L63] int got_new_session ; [L64] int tmp___1 = __VERIFIER_nondet_int() ; [L65] int tmp___2 = __VERIFIER_nondet_int() ; [L66] int tmp___3 = __VERIFIER_nondet_int() ; [L67] int tmp___4 = __VERIFIER_nondet_int() ; [L68] int tmp___5 = __VERIFIER_nondet_int() ; [L69] int tmp___6 = __VERIFIER_nondet_int() ; [L70] int tmp___7 = __VERIFIER_nondet_int() ; [L71] long tmp___8 = __VERIFIER_nondet_long() ; [L72] int tmp___9 = __VERIFIER_nondet_int() ; [L73] int tmp___10 = __VERIFIER_nondet_int() ; [L74] int blastFlag ; [L75] int __cil_tmp55 ; [L76] unsigned long __cil_tmp56 ; [L77] unsigned long __cil_tmp57 ; [L78] unsigned long __cil_tmp58 ; [L79] unsigned long __cil_tmp59 ; [L80] int __cil_tmp60 ; [L81] unsigned long __cil_tmp61 ; [L84] s__state = initial_state [L85] blastFlag = 0 [L86] tmp = __VERIFIER_nondet_int() [L87] Time = tmp [L88] cb = 0 [L89] ret = -1 [L90] skip = 0 [L91] got_new_session = 0 [L92] COND TRUE s__info_callback != 0 [L93] cb = s__info_callback [L99] s__in_handshake ++ [L100] COND FALSE !(tmp___1 + 12288) [L105] COND FALSE !(s__cert == 0) [L109] COND TRUE 1 [L111] state = s__state [L112] COND FALSE !(s__state == 12292) [L115] COND FALSE !(s__state == 16384) [L118] COND FALSE !(s__state == 8192) [L121] COND FALSE !(s__state == 24576) [L124] COND FALSE !(s__state == 8195) [L127] COND FALSE !(s__state == 8480) [L130] COND FALSE !(s__state == 8481) [L133] COND FALSE !(s__state == 8482) [L136] COND TRUE s__state == 8464 [L282] s__shutdown = 0 [L283] ret = __VERIFIER_nondet_int() [L284] COND TRUE blastFlag == 0 [L285] blastFlag = 1 [L287] COND FALSE !(ret <= 0) [L290] got_new_session = 1 [L291] s__state = 8496 [L292] s__init_num = 0 [L611] s__s3__tmp__reuse_message = __VERIFIER_nondet_int() [L612] COND FALSE !(! s__s3__tmp__reuse_message) [L643] skip = 0 [L109] COND TRUE 1 [L111] state = s__state [L112] COND FALSE !(s__state == 12292) [L115] COND FALSE !(s__state == 16384) [L118] COND FALSE !(s__state == 8192) [L121] COND FALSE !(s__state == 24576) [L124] COND FALSE !(s__state == 8195) [L127] COND FALSE !(s__state == 8480) [L130] COND FALSE !(s__state == 8481) [L133] COND FALSE !(s__state == 8482) [L136] COND FALSE !(s__state == 8464) [L139] COND FALSE !(s__state == 8465) [L142] COND FALSE !(s__state == 8466) [L145] COND TRUE s__state == 8496 [L296] ret = __VERIFIER_nondet_int() [L297] COND TRUE blastFlag == 1 [L298] blastFlag = 2 [L300] COND FALSE !(ret <= 0) [L303] COND FALSE !(\read(s__hit)) [L306] s__state = 8512 [L308] s__init_num = 0 [L611] s__s3__tmp__reuse_message = __VERIFIER_nondet_int() [L612] COND TRUE ! s__s3__tmp__reuse_message [L613] COND TRUE ! skip [L614] COND FALSE !(state == 8528) [L628] COND FALSE !(\read(s__debug)) [L634] COND TRUE cb != 0 [L635] COND TRUE s__state != state [L636] new_state = s__state [L637] s__state = state [L638] s__state = new_state [L643] skip = 0 [L109] COND TRUE 1 [L111] state = s__state [L112] COND FALSE !(s__state == 12292) [L115] COND FALSE !(s__state == 16384) [L118] COND FALSE !(s__state == 8192) [L121] COND FALSE !(s__state == 24576) [L124] COND FALSE !(s__state == 8195) [L127] COND FALSE !(s__state == 8480) [L130] COND FALSE !(s__state == 8481) [L133] COND FALSE !(s__state == 8482) [L136] COND FALSE !(s__state == 8464) [L139] COND FALSE !(s__state == 8465) [L142] COND FALSE !(s__state == 8466) [L145] COND FALSE !(s__state == 8496) [L148] COND FALSE !(s__state == 8497) [L151] COND TRUE s__state == 8512 [L313] s__s3__tmp__new_cipher__algorithms = __VERIFIER_nondet_int() [L314] __cil_tmp56 = (unsigned long )s__s3__tmp__new_cipher__algorithms [L315] COND TRUE __cil_tmp56 + 256UL [L316] skip = 1 [L327] s__state = 8528 [L328] s__init_num = 0 [L611] s__s3__tmp__reuse_message = __VERIFIER_nondet_int() [L612] COND FALSE !(! s__s3__tmp__reuse_message) [L643] skip = 0 [L109] COND TRUE 1 [L111] state = s__state [L112] COND FALSE !(s__state == 12292) [L115] COND FALSE !(s__state == 16384) [L118] COND FALSE !(s__state == 8192) [L121] COND FALSE !(s__state == 24576) [L124] COND FALSE !(s__state == 8195) [L127] COND FALSE !(s__state == 8480) [L130] COND FALSE !(s__state == 8481) [L133] COND FALSE !(s__state == 8482) [L136] COND FALSE !(s__state == 8464) [L139] COND FALSE !(s__state == 8465) [L142] COND FALSE !(s__state == 8466) [L145] COND FALSE !(s__state == 8496) [L148] COND FALSE !(s__state == 8497) [L151] COND FALSE !(s__state == 8512) [L154] COND FALSE !(s__state == 8513) [L157] COND TRUE s__state == 8528 [L332] s__s3__tmp__new_cipher__algorithms = __VERIFIER_nondet_int() [L333] l = (unsigned long )s__s3__tmp__new_cipher__algorithms [L335] __cil_tmp57 = (unsigned long )s__options [L336] COND TRUE __cil_tmp57 + 2097152UL [L337] s__s3__tmp__use_rsa_tmp = 1 [L342] COND TRUE \read(s__s3__tmp__use_rsa_tmp) [L369] ret = __VERIFIER_nondet_int() [L370] COND FALSE !(blastFlag == 6) [L373] COND FALSE !(ret <= 0) [L390] s__state = 8544 [L391] s__init_num = 0 [L611] s__s3__tmp__reuse_message = __VERIFIER_nondet_int() [L612] COND TRUE ! s__s3__tmp__reuse_message [L613] COND TRUE ! skip [L614] COND TRUE state == 8528 [L615] COND TRUE s__state == 8544 [L616] COND TRUE tmp___7 != 1024 [L617] COND TRUE tmp___7 != 512 [L618] COND TRUE __cil_tmp58 != 4294967294 [L619] COND TRUE l != 4294967266 [L654] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 165 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 103.0s, OverallIterations: 24, TraceHistogramMax: 4, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 33.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 14438 SdHoareTripleChecker+Valid, 23.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 14437 mSDsluCounter, 7257 SdHoareTripleChecker+Invalid, 20.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 639 mSDsCounter, 742 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 60179 IncrementalHoareTripleChecker+Invalid, 60921 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 742 mSolverCounterUnsat, 6618 mSDtfsCounter, 60179 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1081 GetRequests, 548 SyntacticMatches, 18 SemanticMatches, 515 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7666 ImplicationChecksByTransitivity, 9.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2954occurred in iteration=23, InterpolantAutomatonStates: 321, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.4s AutomataMinimizationTime, 23 MinimizatonAttempts, 8817 StatesRemovedByMinimization, 22 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-01-31 22:11:55,939 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...