/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_2.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-6c470ae [2022-02-15 02:46:21,874 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-15 02:46:21,876 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-15 02:46:21,915 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-02-15 02:46:21,961 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-15 02:46:21,962 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-15 02:46:21,962 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-15 02:46:21,963 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationJordan_32.epf [2022-02-15 02:46:21,979 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-15 02:46:21,980 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-15 02:46:21,981 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-15 02:46:21,981 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-15 02:46:21,981 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-15 02:46:21,981 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-15 02:46:21,981 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-15 02:46:21,981 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-15 02:46:21,981 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-15 02:46:21,981 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-15 02:46:21,981 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-15 02:46:21,981 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-15 02:46:21,981 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-15 02:46:21,981 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-15 02:46:21,982 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-15 02:46:21,982 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-15 02:46:21,982 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-15 02:46:21,982 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-15 02:46:21,982 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-15 02:46:21,982 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-15 02:46:21,982 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2022-02-15 02:46:21,982 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-15 02:46:21,982 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=JORDAN [2022-02-15 02:46:21,982 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-02-15 02:46:22,173 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-15 02:46:22,187 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-15 02:46:22,189 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-15 02:46:22,189 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-15 02:46:22,192 INFO L275 PluginConnector]: CDTParser initialized [2022-02-15 02:46:22,192 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl-simplified/s3_srvr_2.cil-2.c [2022-02-15 02:46:22,232 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e4bce2cd1/b7537b3b64d644f0bdac34a05fb9de75/FLAG862fb186a [2022-02-15 02:46:22,573 INFO L306 CDTParser]: Found 1 translation units. [2022-02-15 02:46:22,573 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl-simplified/s3_srvr_2.cil-2.c [2022-02-15 02:46:22,593 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e4bce2cd1/b7537b3b64d644f0bdac34a05fb9de75/FLAG862fb186a [2022-02-15 02:46:22,970 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e4bce2cd1/b7537b3b64d644f0bdac34a05fb9de75 [2022-02-15 02:46:22,972 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-15 02:46:22,973 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-02-15 02:46:22,977 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-15 02:46:22,977 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-15 02:46:22,979 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-15 02:46:22,980 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 02:46:22" (1/1) ... [2022-02-15 02:46:22,981 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@297ef0c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:46:22, skipping insertion in model container [2022-02-15 02:46:22,981 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 02:46:22" (1/1) ... [2022-02-15 02:46:22,987 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-15 02:46:23,022 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-15 02:46:23,227 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_2.cil-2.c[42877,42890] [2022-02-15 02:46:23,233 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-15 02:46:23,238 INFO L203 MainTranslator]: Completed pre-run [2022-02-15 02:46:23,289 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_2.cil-2.c[42877,42890] [2022-02-15 02:46:23,291 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-15 02:46:23,299 INFO L208 MainTranslator]: Completed translation [2022-02-15 02:46:23,300 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:46:23 WrapperNode [2022-02-15 02:46:23,300 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-15 02:46:23,301 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-15 02:46:23,301 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-15 02:46:23,301 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-15 02:46:23,314 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:46:23" (1/1) ... [2022-02-15 02:46:23,314 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:46:23" (1/1) ... [2022-02-15 02:46:23,333 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:46:23" (1/1) ... [2022-02-15 02:46:23,333 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:46:23" (1/1) ... [2022-02-15 02:46:23,340 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:46:23" (1/1) ... [2022-02-15 02:46:23,365 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:46:23" (1/1) ... [2022-02-15 02:46:23,367 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:46:23" (1/1) ... [2022-02-15 02:46:23,382 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-15 02:46:23,383 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-15 02:46:23,383 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-15 02:46:23,383 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-15 02:46:23,384 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:46:23" (1/1) ... [2022-02-15 02:46:23,391 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-15 02:46:23,406 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-15 02:46:23,419 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-02-15 02:46:23,424 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-02-15 02:46:23,452 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-02-15 02:46:23,452 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-15 02:46:23,452 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-02-15 02:46:23,452 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-02-15 02:46:23,452 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-02-15 02:46:23,453 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-02-15 02:46:23,453 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-02-15 02:46:23,453 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-02-15 02:46:23,453 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-15 02:46:23,454 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-02-15 02:46:23,454 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-02-15 02:46:23,455 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-02-15 02:46:23,455 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-02-15 02:46:23,455 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-02-15 02:46:23,456 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-02-15 02:46:23,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-15 02:46:23,457 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-15 02:46:23,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-15 02:46:23,458 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-15 02:46:23,458 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-15 02:46:23,552 INFO L234 CfgBuilder]: Building ICFG [2022-02-15 02:46:23,553 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-15 02:46:23,611 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-02-15 02:46:23,890 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##90: assume false; [2022-02-15 02:46:23,890 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##91: assume !false; [2022-02-15 02:46:23,894 INFO L275 CfgBuilder]: Performing block encoding [2022-02-15 02:46:23,907 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-15 02:46:23,908 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-02-15 02:46:23,910 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 02:46:23 BoogieIcfgContainer [2022-02-15 02:46:23,910 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-15 02:46:23,911 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-15 02:46:23,911 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-15 02:46:23,917 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-15 02:46:23,917 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.02 02:46:22" (1/3) ... [2022-02-15 02:46:23,917 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33d668da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 02:46:23, skipping insertion in model container [2022-02-15 02:46:23,918 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:46:23" (2/3) ... [2022-02-15 02:46:23,918 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33d668da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 02:46:23, skipping insertion in model container [2022-02-15 02:46:23,918 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 02:46:23" (3/3) ... [2022-02-15 02:46:23,919 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr_2.cil-2.c [2022-02-15 02:46:23,924 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-02-15 02:46:23,924 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-15 02:46:23,974 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-15 02:46:23,983 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=AcceleratedInterpolation, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=JORDAN [2022-02-15 02:46:23,984 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-02-15 02:46:24,006 INFO L276 IsEmpty]: Start isEmpty. Operand has 150 states, 142 states have (on average 1.7112676056338028) internal successors, (243), 143 states have internal predecessors, (243), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-02-15 02:46:24,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-02-15 02:46:24,026 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 02:46:24,028 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 02:46:24,029 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 02:46:24,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 02:46:24,033 INFO L85 PathProgramCache]: Analyzing trace with hash 1867927467, now seen corresponding path program 1 times [2022-02-15 02:46:24,040 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 02:46:24,040 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [209587022] [2022-02-15 02:46:24,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 02:46:24,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 02:46:24,092 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 02:46:24,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 02:46:24,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 02:46:24,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 02:46:24,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 02:46:24,312 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 02:46:24,312 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [209587022] [2022-02-15 02:46:24,313 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [209587022] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 02:46:24,313 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 02:46:24,314 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-15 02:46:24,315 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573439442] [2022-02-15 02:46:24,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 02:46:24,320 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-15 02:46:24,320 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 02:46:24,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-15 02:46:24,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-15 02:46:24,344 INFO L87 Difference]: Start difference. First operand has 150 states, 142 states have (on average 1.7112676056338028) internal successors, (243), 143 states have internal predecessors, (243), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 4 states, 4 states have (on average 11.5) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 02:46:24,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 02:46:24,702 INFO L93 Difference]: Finished difference Result 414 states and 701 transitions. [2022-02-15 02:46:24,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-15 02:46:24,704 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 50 [2022-02-15 02:46:24,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 02:46:24,729 INFO L225 Difference]: With dead ends: 414 [2022-02-15 02:46:24,729 INFO L226 Difference]: Without dead ends: 251 [2022-02-15 02:46:24,733 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 [2022-02-15 02:46:24,736 INFO L933 BasicCegarLoop]: 240 mSDtfsCounter, 634 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 236 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 636 SdHoareTripleChecker+Valid, 249 SdHoareTripleChecker+Invalid, 243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-15 02:46:24,737 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [636 Valid, 249 Invalid, 243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 236 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 02:46:24,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2022-02-15 02:46:24,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 251. [2022-02-15 02:46:24,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 251 states, 246 states have (on average 1.524390243902439) internal successors, (375), 246 states have internal predecessors, (375), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 02:46:24,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 379 transitions. [2022-02-15 02:46:24,794 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 379 transitions. Word has length 50 [2022-02-15 02:46:24,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 02:46:24,795 INFO L470 AbstractCegarLoop]: Abstraction has 251 states and 379 transitions. [2022-02-15 02:46:24,796 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 02:46:24,796 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 379 transitions. [2022-02-15 02:46:24,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-02-15 02:46:24,806 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 02:46:24,806 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 02:46:24,807 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-15 02:46:24,807 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 02:46:24,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 02:46:24,808 INFO L85 PathProgramCache]: Analyzing trace with hash -1459295990, now seen corresponding path program 1 times [2022-02-15 02:46:24,808 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 02:46:24,808 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [251797890] [2022-02-15 02:46:24,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 02:46:25,547 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 8 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=6, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-02-15 02:46:25,548 INFO L262 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2022-02-15 02:46:25,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 02:46:25,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 02:46:25,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 02:46:25,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 02:46:25,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 02:46:26,433 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 02:46:26,433 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [251797890] [2022-02-15 02:46:26,433 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [251797890] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 02:46:26,433 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 02:46:26,434 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-02-15 02:46:26,434 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627507561] [2022-02-15 02:46:26,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 02:46:26,435 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-15 02:46:26,435 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 02:46:26,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-15 02:46:26,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=202, Unknown=0, NotChecked=0, Total=272 [2022-02-15 02:46:26,436 INFO L87 Difference]: Start difference. First operand 251 states and 379 transitions. Second operand has 17 states, 16 states have (on average 3.875) internal successors, (62), 15 states have internal predecessors, (62), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 02:46:27,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 02:46:27,356 INFO L93 Difference]: Finished difference Result 643 states and 987 transitions. [2022-02-15 02:46:27,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-02-15 02:46:27,357 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 3.875) internal successors, (62), 15 states have internal predecessors, (62), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 66 [2022-02-15 02:46:27,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 02:46:27,359 INFO L225 Difference]: With dead ends: 643 [2022-02-15 02:46:27,359 INFO L226 Difference]: Without dead ends: 382 [2022-02-15 02:46:27,360 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 11 SyntacticMatches, 6 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 182 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=219, Invalid=651, Unknown=0, NotChecked=0, Total=870 [2022-02-15 02:46:27,361 INFO L933 BasicCegarLoop]: 182 mSDtfsCounter, 824 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 864 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 824 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 1411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 864 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 477 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-02-15 02:46:27,361 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [824 Valid, 214 Invalid, 1411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 864 Invalid, 0 Unknown, 477 Unchecked, 0.6s Time] [2022-02-15 02:46:27,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states. [2022-02-15 02:46:27,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 326. [2022-02-15 02:46:27,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 326 states, 321 states have (on average 1.4485981308411215) internal successors, (465), 321 states have internal predecessors, (465), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 02:46:27,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 469 transitions. [2022-02-15 02:46:27,392 INFO L78 Accepts]: Start accepts. Automaton has 326 states and 469 transitions. Word has length 66 [2022-02-15 02:46:27,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 02:46:27,393 INFO L470 AbstractCegarLoop]: Abstraction has 326 states and 469 transitions. [2022-02-15 02:46:27,393 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 3.875) internal successors, (62), 15 states have internal predecessors, (62), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 02:46:27,394 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states and 469 transitions. [2022-02-15 02:46:27,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-02-15 02:46:27,395 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 02:46:27,397 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 02:46:27,398 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-15 02:46:27,402 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 02:46:27,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 02:46:27,403 INFO L85 PathProgramCache]: Analyzing trace with hash 494373208, now seen corresponding path program 1 times [2022-02-15 02:46:27,403 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 02:46:27,403 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2007342002] [2022-02-15 02:46:27,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 02:46:27,906 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 8 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=6, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-02-15 02:46:27,906 INFO L262 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2022-02-15 02:46:27,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 02:46:27,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 02:46:27,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 02:46:27,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 02:46:28,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 02:46:28,862 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 02:46:28,863 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2007342002] [2022-02-15 02:46:28,863 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [2007342002] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 02:46:28,864 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 02:46:28,864 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-02-15 02:46:28,864 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732539578] [2022-02-15 02:46:28,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 02:46:28,864 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-02-15 02:46:28,865 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 02:46:28,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-02-15 02:46:28,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=292, Unknown=0, NotChecked=0, Total=380 [2022-02-15 02:46:28,866 INFO L87 Difference]: Start difference. First operand 326 states and 469 transitions. Second operand has 20 states, 19 states have (on average 3.473684210526316) internal successors, (66), 18 states have internal predecessors, (66), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 02:46:29,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 02:46:29,447 INFO L93 Difference]: Finished difference Result 528 states and 778 transitions. [2022-02-15 02:46:29,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-02-15 02:46:29,447 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 3.473684210526316) internal successors, (66), 18 states have internal predecessors, (66), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 70 [2022-02-15 02:46:29,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 02:46:29,449 INFO L225 Difference]: With dead ends: 528 [2022-02-15 02:46:29,449 INFO L226 Difference]: Without dead ends: 399 [2022-02-15 02:46:29,450 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 10 SyntacticMatches, 6 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 269 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=214, Invalid=908, Unknown=0, NotChecked=0, Total=1122 [2022-02-15 02:46:29,451 INFO L933 BasicCegarLoop]: 186 mSDtfsCounter, 215 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 638 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 215 SdHoareTripleChecker+Valid, 241 SdHoareTripleChecker+Invalid, 912 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 638 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 232 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-15 02:46:29,451 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [215 Valid, 241 Invalid, 912 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 638 Invalid, 0 Unknown, 232 Unchecked, 0.3s Time] [2022-02-15 02:46:29,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 399 states. [2022-02-15 02:46:29,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 399 to 384. [2022-02-15 02:46:29,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 384 states, 379 states have (on average 1.4142480211081794) internal successors, (536), 379 states have internal predecessors, (536), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 02:46:29,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 540 transitions. [2022-02-15 02:46:29,485 INFO L78 Accepts]: Start accepts. Automaton has 384 states and 540 transitions. Word has length 70 [2022-02-15 02:46:29,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 02:46:29,486 INFO L470 AbstractCegarLoop]: Abstraction has 384 states and 540 transitions. [2022-02-15 02:46:29,486 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 3.473684210526316) internal successors, (66), 18 states have internal predecessors, (66), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 02:46:29,486 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states and 540 transitions. [2022-02-15 02:46:29,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-02-15 02:46:29,488 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 02:46:29,488 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 02:46:29,488 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-02-15 02:46:29,489 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 02:46:29,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 02:46:29,489 INFO L85 PathProgramCache]: Analyzing trace with hash 1079401010, now seen corresponding path program 1 times [2022-02-15 02:46:29,489 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 02:46:29,489 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [330759560] [2022-02-15 02:46:29,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 02:46:29,989 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 8 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=6, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-02-15 02:46:29,989 INFO L262 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2022-02-15 02:46:29,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 02:46:29,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 02:46:30,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 02:46:30,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 02:46:30,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 02:46:30,794 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 02:46:30,795 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [330759560] [2022-02-15 02:46:30,795 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [330759560] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 02:46:30,795 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 02:46:30,795 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-02-15 02:46:30,795 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730977899] [2022-02-15 02:46:30,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 02:46:30,795 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-02-15 02:46:30,796 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 02:46:30,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-02-15 02:46:30,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=292, Unknown=0, NotChecked=0, Total=380 [2022-02-15 02:46:30,796 INFO L87 Difference]: Start difference. First operand 384 states and 540 transitions. Second operand has 20 states, 19 states have (on average 3.526315789473684) internal successors, (67), 18 states have internal predecessors, (67), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 02:46:31,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 02:46:31,860 INFO L93 Difference]: Finished difference Result 823 states and 1236 transitions. [2022-02-15 02:46:31,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-15 02:46:31,861 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 3.526315789473684) internal successors, (67), 18 states have internal predecessors, (67), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 71 [2022-02-15 02:46:31,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 02:46:31,863 INFO L225 Difference]: With dead ends: 823 [2022-02-15 02:46:31,864 INFO L226 Difference]: Without dead ends: 521 [2022-02-15 02:46:31,865 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 10 SyntacticMatches, 6 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 288 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=279, Invalid=981, Unknown=0, NotChecked=0, Total=1260 [2022-02-15 02:46:31,866 INFO L933 BasicCegarLoop]: 176 mSDtfsCounter, 820 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 1299 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 820 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 2185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 1299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 789 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-02-15 02:46:31,866 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [820 Valid, 223 Invalid, 2185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 1299 Invalid, 0 Unknown, 789 Unchecked, 0.7s Time] [2022-02-15 02:46:31,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 521 states. [2022-02-15 02:46:31,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 521 to 365. [2022-02-15 02:46:31,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 365 states, 360 states have (on average 1.4527777777777777) internal successors, (523), 360 states have internal predecessors, (523), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 02:46:31,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 527 transitions. [2022-02-15 02:46:31,891 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 527 transitions. Word has length 71 [2022-02-15 02:46:31,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 02:46:31,891 INFO L470 AbstractCegarLoop]: Abstraction has 365 states and 527 transitions. [2022-02-15 02:46:31,892 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 3.526315789473684) internal successors, (67), 18 states have internal predecessors, (67), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 02:46:31,892 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 527 transitions. [2022-02-15 02:46:31,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-02-15 02:46:31,893 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 02:46:31,893 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 02:46:31,893 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-02-15 02:46:31,893 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 02:46:31,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 02:46:31,894 INFO L85 PathProgramCache]: Analyzing trace with hash 598674235, now seen corresponding path program 1 times [2022-02-15 02:46:31,894 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 02:46:31,894 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [149098366] [2022-02-15 02:46:31,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 02:46:31,975 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-02-15 02:46:31,976 INFO L262 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2022-02-15 02:46:32,460 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 8 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=6, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-02-15 02:46:32,518 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-02-15 02:46:32,518 INFO L262 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-02-15 02:46:32,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 02:46:32,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 02:46:32,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 02:46:32,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 02:46:32,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 02:46:33,495 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 02:46:33,495 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [149098366] [2022-02-15 02:46:33,495 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [149098366] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 02:46:33,495 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 02:46:33,495 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-02-15 02:46:33,496 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186687097] [2022-02-15 02:46:33,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 02:46:33,496 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-02-15 02:46:33,496 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 02:46:33,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-02-15 02:46:33,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=401, Unknown=0, NotChecked=0, Total=506 [2022-02-15 02:46:33,497 INFO L87 Difference]: Start difference. First operand 365 states and 527 transitions. Second operand has 23 states, 22 states have (on average 3.772727272727273) internal successors, (83), 21 states have internal predecessors, (83), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 02:46:34,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 02:46:34,815 INFO L93 Difference]: Finished difference Result 909 states and 1328 transitions. [2022-02-15 02:46:34,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-02-15 02:46:34,818 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 3.772727272727273) internal successors, (83), 21 states have internal predecessors, (83), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 87 [2022-02-15 02:46:34,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 02:46:34,821 INFO L225 Difference]: With dead ends: 909 [2022-02-15 02:46:34,821 INFO L226 Difference]: Without dead ends: 552 [2022-02-15 02:46:34,823 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 25 SyntacticMatches, 6 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 454 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=334, Invalid=1388, Unknown=0, NotChecked=0, Total=1722 [2022-02-15 02:46:34,826 INFO L933 BasicCegarLoop]: 186 mSDtfsCounter, 939 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 1653 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 939 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 2182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 1653 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 437 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-02-15 02:46:34,827 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [939 Valid, 208 Invalid, 2182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 1653 Invalid, 0 Unknown, 437 Unchecked, 0.9s Time] [2022-02-15 02:46:34,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 552 states. [2022-02-15 02:46:34,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 552 to 468. [2022-02-15 02:46:34,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 468 states, 463 states have (on average 1.4190064794816415) internal successors, (657), 463 states have internal predecessors, (657), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 02:46:34,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 468 states to 468 states and 661 transitions. [2022-02-15 02:46:34,857 INFO L78 Accepts]: Start accepts. Automaton has 468 states and 661 transitions. Word has length 87 [2022-02-15 02:46:34,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 02:46:34,858 INFO L470 AbstractCegarLoop]: Abstraction has 468 states and 661 transitions. [2022-02-15 02:46:34,858 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 3.772727272727273) internal successors, (83), 21 states have internal predecessors, (83), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 02:46:34,858 INFO L276 IsEmpty]: Start isEmpty. Operand 468 states and 661 transitions. [2022-02-15 02:46:34,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-02-15 02:46:34,859 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 02:46:34,859 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 02:46:34,859 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-02-15 02:46:34,859 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 02:46:34,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 02:46:34,860 INFO L85 PathProgramCache]: Analyzing trace with hash 846820729, now seen corresponding path program 1 times [2022-02-15 02:46:34,860 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 02:46:34,860 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [587157663] [2022-02-15 02:46:34,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 02:46:34,929 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-02-15 02:46:34,929 INFO L262 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2022-02-15 02:46:35,402 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 8 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=6, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-02-15 02:46:35,458 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-02-15 02:46:35,459 INFO L262 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-02-15 02:46:35,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 02:46:35,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 02:46:35,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 02:46:35,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 02:46:35,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 02:46:36,322 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 02:46:36,323 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [587157663] [2022-02-15 02:46:36,323 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [587157663] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 02:46:36,323 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 02:46:36,323 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-02-15 02:46:36,323 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653170355] [2022-02-15 02:46:36,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 02:46:36,323 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-02-15 02:46:36,324 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 02:46:36,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-02-15 02:46:36,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=401, Unknown=0, NotChecked=0, Total=506 [2022-02-15 02:46:36,324 INFO L87 Difference]: Start difference. First operand 468 states and 661 transitions. Second operand has 23 states, 22 states have (on average 3.772727272727273) internal successors, (83), 21 states have internal predecessors, (83), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 02:46:37,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 02:46:37,430 INFO L93 Difference]: Finished difference Result 1162 states and 1667 transitions. [2022-02-15 02:46:37,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-02-15 02:46:37,431 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 3.772727272727273) internal successors, (83), 21 states have internal predecessors, (83), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 87 [2022-02-15 02:46:37,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 02:46:37,435 INFO L225 Difference]: With dead ends: 1162 [2022-02-15 02:46:37,435 INFO L226 Difference]: Without dead ends: 666 [2022-02-15 02:46:37,436 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 25 SyntacticMatches, 6 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 423 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=258, Invalid=1302, Unknown=0, NotChecked=0, Total=1560 [2022-02-15 02:46:37,440 INFO L933 BasicCegarLoop]: 185 mSDtfsCounter, 350 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 1856 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 350 SdHoareTripleChecker+Valid, 266 SdHoareTripleChecker+Invalid, 2212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 1856 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 288 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-02-15 02:46:37,443 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [350 Valid, 266 Invalid, 2212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 1856 Invalid, 0 Unknown, 288 Unchecked, 0.8s Time] [2022-02-15 02:46:37,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 666 states. [2022-02-15 02:46:37,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 666 to 594. [2022-02-15 02:46:37,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 594 states, 589 states have (on average 1.436332767402377) internal successors, (846), 589 states have internal predecessors, (846), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 02:46:37,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 594 states to 594 states and 850 transitions. [2022-02-15 02:46:37,483 INFO L78 Accepts]: Start accepts. Automaton has 594 states and 850 transitions. Word has length 87 [2022-02-15 02:46:37,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 02:46:37,483 INFO L470 AbstractCegarLoop]: Abstraction has 594 states and 850 transitions. [2022-02-15 02:46:37,483 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 3.772727272727273) internal successors, (83), 21 states have internal predecessors, (83), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 02:46:37,483 INFO L276 IsEmpty]: Start isEmpty. Operand 594 states and 850 transitions. [2022-02-15 02:46:37,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-02-15 02:46:37,485 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 02:46:37,485 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 02:46:37,485 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-02-15 02:46:37,485 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 02:46:37,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 02:46:37,485 INFO L85 PathProgramCache]: Analyzing trace with hash 1186265614, now seen corresponding path program 1 times [2022-02-15 02:46:37,485 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 02:46:37,485 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1973222495] [2022-02-15 02:46:37,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 02:46:37,521 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 3 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=1, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-02-15 02:46:37,521 INFO L262 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2022-02-15 02:46:37,925 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 8 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=6, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-02-15 02:46:37,966 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 3 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=1, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-02-15 02:46:37,967 INFO L262 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-02-15 02:46:37,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 02:46:37,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 02:46:38,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 02:46:38,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 02:46:38,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 02:46:38,252 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 02:46:38,253 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1973222495] [2022-02-15 02:46:38,253 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1973222495] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 02:46:38,253 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 02:46:38,253 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-02-15 02:46:38,253 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023057881] [2022-02-15 02:46:38,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 02:46:38,253 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-02-15 02:46:38,253 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 02:46:38,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-02-15 02:46:38,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=228, Unknown=0, NotChecked=0, Total=342 [2022-02-15 02:46:38,254 INFO L87 Difference]: Start difference. First operand 594 states and 850 transitions. Second operand has 19 states, 19 states have (on average 4.7368421052631575) internal successors, (90), 18 states have internal predecessors, (90), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 02:46:39,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 02:46:39,230 INFO L93 Difference]: Finished difference Result 1210 states and 1731 transitions. [2022-02-15 02:46:39,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-15 02:46:39,230 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 4.7368421052631575) internal successors, (90), 18 states have internal predecessors, (90), 1 states have call successors, (3), 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 95 [2022-02-15 02:46:39,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 02:46:39,233 INFO L225 Difference]: With dead ends: 1210 [2022-02-15 02:46:39,233 INFO L226 Difference]: Without dead ends: 669 [2022-02-15 02:46:39,235 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 236 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=336, Invalid=854, Unknown=0, NotChecked=0, Total=1190 [2022-02-15 02:46:39,235 INFO L933 BasicCegarLoop]: 161 mSDtfsCounter, 1059 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 1351 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1059 SdHoareTripleChecker+Valid, 188 SdHoareTripleChecker+Invalid, 1374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1351 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-02-15 02:46:39,235 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1059 Valid, 188 Invalid, 1374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1351 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-02-15 02:46:39,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 669 states. [2022-02-15 02:46:39,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 669 to 607. [2022-02-15 02:46:39,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 607 states, 602 states have (on average 1.4269102990033222) internal successors, (859), 602 states have internal predecessors, (859), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 02:46:39,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 607 states to 607 states and 863 transitions. [2022-02-15 02:46:39,285 INFO L78 Accepts]: Start accepts. Automaton has 607 states and 863 transitions. Word has length 95 [2022-02-15 02:46:39,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 02:46:39,286 INFO L470 AbstractCegarLoop]: Abstraction has 607 states and 863 transitions. [2022-02-15 02:46:39,286 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 4.7368421052631575) internal successors, (90), 18 states have internal predecessors, (90), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 02:46:39,286 INFO L276 IsEmpty]: Start isEmpty. Operand 607 states and 863 transitions. [2022-02-15 02:46:39,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-02-15 02:46:39,287 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 02:46:39,288 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 02:46:39,288 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-02-15 02:46:39,288 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 02:46:39,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 02:46:39,288 INFO L85 PathProgramCache]: Analyzing trace with hash 2014191515, now seen corresponding path program 1 times [2022-02-15 02:46:39,288 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 02:46:39,288 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [438016848] [2022-02-15 02:46:39,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 02:46:39,335 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 3 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=1, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-02-15 02:46:39,336 INFO L262 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2022-02-15 02:46:39,815 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 8 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=6, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-02-15 02:46:39,845 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 3 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=1, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-02-15 02:46:39,845 INFO L262 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-02-15 02:46:39,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 02:46:39,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 02:46:39,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 02:46:39,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 02:46:39,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 02:46:40,591 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 02:46:40,592 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [438016848] [2022-02-15 02:46:40,592 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [438016848] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 02:46:40,592 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 02:46:40,592 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-02-15 02:46:40,592 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749002498] [2022-02-15 02:46:40,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 02:46:40,592 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-02-15 02:46:40,592 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 02:46:40,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-02-15 02:46:40,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=285, Unknown=0, NotChecked=0, Total=380 [2022-02-15 02:46:40,593 INFO L87 Difference]: Start difference. First operand 607 states and 863 transitions. Second operand has 19 states, 18 states have (on average 5.166666666666667) internal successors, (93), 17 states have internal predecessors, (93), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 02:46:41,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 02:46:41,278 INFO L93 Difference]: Finished difference Result 999 states and 1409 transitions. [2022-02-15 02:46:41,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-15 02:46:41,278 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 5.166666666666667) internal successors, (93), 17 states have internal predecessors, (93), 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 97 [2022-02-15 02:46:41,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 02:46:41,280 INFO L225 Difference]: With dead ends: 999 [2022-02-15 02:46:41,280 INFO L226 Difference]: Without dead ends: 703 [2022-02-15 02:46:41,281 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 35 SyntacticMatches, 8 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 291 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=234, Invalid=888, Unknown=0, NotChecked=0, Total=1122 [2022-02-15 02:46:41,282 INFO L933 BasicCegarLoop]: 187 mSDtfsCounter, 312 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 1028 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 312 SdHoareTripleChecker+Valid, 250 SdHoareTripleChecker+Invalid, 1373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 1028 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 306 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-02-15 02:46:41,282 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [312 Valid, 250 Invalid, 1373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 1028 Invalid, 0 Unknown, 306 Unchecked, 0.4s Time] [2022-02-15 02:46:41,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 703 states. [2022-02-15 02:46:41,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 703 to 668. [2022-02-15 02:46:41,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 668 states, 663 states have (on average 1.4177978883861238) internal successors, (940), 663 states have internal predecessors, (940), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 02:46:41,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 668 states to 668 states and 944 transitions. [2022-02-15 02:46:41,327 INFO L78 Accepts]: Start accepts. Automaton has 668 states and 944 transitions. Word has length 97 [2022-02-15 02:46:41,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 02:46:41,328 INFO L470 AbstractCegarLoop]: Abstraction has 668 states and 944 transitions. [2022-02-15 02:46:41,328 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 5.166666666666667) internal successors, (93), 17 states have internal predecessors, (93), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 02:46:41,328 INFO L276 IsEmpty]: Start isEmpty. Operand 668 states and 944 transitions. [2022-02-15 02:46:41,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-02-15 02:46:41,329 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 02:46:41,329 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 02:46:41,329 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-02-15 02:46:41,329 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 02:46:41,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 02:46:41,330 INFO L85 PathProgramCache]: Analyzing trace with hash 1214296883, now seen corresponding path program 1 times [2022-02-15 02:46:41,330 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 02:46:41,330 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1633266655] [2022-02-15 02:46:41,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 02:46:41,380 INFO L89 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 [2022-02-15 02:46:41,381 INFO L262 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2022-02-15 02:46:41,805 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 8 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=6, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-02-15 02:46:41,833 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 3 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=1, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-02-15 02:46:41,833 INFO L262 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-02-15 02:46:41,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 02:46:41,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 02:46:41,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 02:46:41,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 02:46:41,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 02:46:42,522 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 02:46:42,522 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1633266655] [2022-02-15 02:46:42,522 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1633266655] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 02:46:42,522 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 02:46:42,522 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-02-15 02:46:42,523 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067056192] [2022-02-15 02:46:42,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 02:46:42,523 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-02-15 02:46:42,523 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 02:46:42,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-02-15 02:46:42,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=149, Invalid=451, Unknown=0, NotChecked=0, Total=600 [2022-02-15 02:46:42,524 INFO L87 Difference]: Start difference. First operand 668 states and 944 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 24 states have internal predecessors, (94), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 02:46:44,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 02:46:44,286 INFO L93 Difference]: Finished difference Result 1617 states and 2298 transitions. [2022-02-15 02:46:44,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-02-15 02:46:44,286 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 24 states have internal predecessors, (94), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 98 [2022-02-15 02:46:44,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 02:46:44,289 INFO L225 Difference]: With dead ends: 1617 [2022-02-15 02:46:44,289 INFO L226 Difference]: Without dead ends: 1297 [2022-02-15 02:46:44,291 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 506 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=441, Invalid=1629, Unknown=0, NotChecked=0, Total=2070 [2022-02-15 02:46:44,291 INFO L933 BasicCegarLoop]: 164 mSDtfsCounter, 1715 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 2585 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1715 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 2647 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 2585 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-02-15 02:46:44,291 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1715 Valid, 196 Invalid, 2647 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 2585 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-02-15 02:46:44,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1297 states. [2022-02-15 02:46:44,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1297 to 1169. [2022-02-15 02:46:44,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1169 states, 1164 states have (on average 1.4329896907216495) internal successors, (1668), 1164 states have internal predecessors, (1668), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 02:46:44,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1169 states to 1169 states and 1672 transitions. [2022-02-15 02:46:44,386 INFO L78 Accepts]: Start accepts. Automaton has 1169 states and 1672 transitions. Word has length 98 [2022-02-15 02:46:44,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 02:46:44,386 INFO L470 AbstractCegarLoop]: Abstraction has 1169 states and 1672 transitions. [2022-02-15 02:46:44,386 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 24 states have internal predecessors, (94), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 02:46:44,387 INFO L276 IsEmpty]: Start isEmpty. Operand 1169 states and 1672 transitions. [2022-02-15 02:46:44,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-02-15 02:46:44,389 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 02:46:44,390 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 02:46:44,390 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-02-15 02:46:44,390 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 02:46:44,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 02:46:44,390 INFO L85 PathProgramCache]: Analyzing trace with hash 871756056, now seen corresponding path program 1 times [2022-02-15 02:46:44,390 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 02:46:44,390 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [160118289] [2022-02-15 02:46:44,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 02:46:44,464 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-02-15 02:46:44,525 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 5 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=3, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-02-15 02:46:44,526 INFO L262 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-02-15 02:46:44,926 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 8 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=6, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-02-15 02:46:44,966 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 5 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=3, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-02-15 02:46:45,034 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-02-15 02:46:45,035 INFO L262 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-02-15 02:46:45,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 02:46:45,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 02:46:45,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 02:46:45,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 02:46:45,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 02:46:46,130 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 02:46:46,131 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [160118289] [2022-02-15 02:46:46,131 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [160118289] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 02:46:46,131 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 02:46:46,131 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2022-02-15 02:46:46,131 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011199863] [2022-02-15 02:46:46,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 02:46:46,131 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-02-15 02:46:46,132 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 02:46:46,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-02-15 02:46:46,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=121, Invalid=635, Unknown=0, NotChecked=0, Total=756 [2022-02-15 02:46:46,132 INFO L87 Difference]: Start difference. First operand 1169 states and 1672 transitions. Second operand has 27 states, 26 states have (on average 4.0) internal successors, (104), 25 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) [2022-02-15 02:46:48,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 02:46:48,117 INFO L93 Difference]: Finished difference Result 2643 states and 3854 transitions. [2022-02-15 02:46:48,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-02-15 02:46:48,125 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 4.0) internal successors, (104), 25 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 [2022-02-15 02:46:48,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 02:46:48,131 INFO L225 Difference]: With dead ends: 2643 [2022-02-15 02:46:48,131 INFO L226 Difference]: Without dead ends: 1513 [2022-02-15 02:46:48,135 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 42 SyntacticMatches, 6 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 696 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=370, Invalid=2180, Unknown=0, NotChecked=0, Total=2550 [2022-02-15 02:46:48,135 INFO L933 BasicCegarLoop]: 186 mSDtfsCounter, 873 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 3124 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 873 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 3609 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 3124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 411 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-02-15 02:46:48,136 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [873 Valid, 238 Invalid, 3609 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 3124 Invalid, 0 Unknown, 411 Unchecked, 1.3s Time] [2022-02-15 02:46:48,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1513 states. [2022-02-15 02:46:48,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1513 to 1289. [2022-02-15 02:46:48,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1289 states, 1284 states have (on average 1.4493769470404985) internal successors, (1861), 1284 states have internal predecessors, (1861), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 02:46:48,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1289 states to 1289 states and 1865 transitions. [2022-02-15 02:46:48,249 INFO L78 Accepts]: Start accepts. Automaton has 1289 states and 1865 transitions. Word has length 108 [2022-02-15 02:46:48,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 02:46:48,249 INFO L470 AbstractCegarLoop]: Abstraction has 1289 states and 1865 transitions. [2022-02-15 02:46:48,249 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 26 states have (on average 4.0) internal successors, (104), 25 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) [2022-02-15 02:46:48,249 INFO L276 IsEmpty]: Start isEmpty. Operand 1289 states and 1865 transitions. [2022-02-15 02:46:48,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-02-15 02:46:48,252 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 02:46:48,252 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, 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] [2022-02-15 02:46:48,253 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-02-15 02:46:48,253 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 02:46:48,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 02:46:48,253 INFO L85 PathProgramCache]: Analyzing trace with hash 1242845846, now seen corresponding path program 1 times [2022-02-15 02:46:48,253 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 02:46:48,253 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1210798072] [2022-02-15 02:46:48,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 02:46:48,288 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 3 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=1, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-02-15 02:46:48,353 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-02-15 02:46:48,354 INFO L262 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-02-15 02:46:48,846 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 8 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=6, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-02-15 02:46:48,906 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-02-15 02:46:48,933 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 3 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=1, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-02-15 02:46:48,933 INFO L262 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-02-15 02:46:48,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 02:46:48,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 02:46:49,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 02:46:49,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 02:46:49,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 02:46:50,013 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 02:46:50,013 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1210798072] [2022-02-15 02:46:50,013 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1210798072] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 02:46:50,014 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 02:46:50,014 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-02-15 02:46:50,014 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030557296] [2022-02-15 02:46:50,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 02:46:50,014 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-02-15 02:46:50,014 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 02:46:50,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-02-15 02:46:50,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=436, Unknown=0, NotChecked=0, Total=552 [2022-02-15 02:46:50,015 INFO L87 Difference]: Start difference. First operand 1289 states and 1865 transitions. Second operand has 22 states, 21 states have (on average 5.285714285714286) internal successors, (111), 20 states have internal predecessors, (111), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 02:46:51,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 02:46:51,479 INFO L93 Difference]: Finished difference Result 2572 states and 3780 transitions. [2022-02-15 02:46:51,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-02-15 02:46:51,485 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 5.285714285714286) internal successors, (111), 20 states have internal predecessors, (111), 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 115 [2022-02-15 02:46:51,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 02:46:51,491 INFO L225 Difference]: With dead ends: 2572 [2022-02-15 02:46:51,491 INFO L226 Difference]: Without dead ends: 1669 [2022-02-15 02:46:51,494 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 48 SyntacticMatches, 8 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 417 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=224, Invalid=1108, Unknown=0, NotChecked=0, Total=1332 [2022-02-15 02:46:51,494 INFO L933 BasicCegarLoop]: 195 mSDtfsCounter, 391 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 2266 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 391 SdHoareTripleChecker+Valid, 257 SdHoareTripleChecker+Invalid, 3337 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 2266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 982 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-02-15 02:46:51,495 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [391 Valid, 257 Invalid, 3337 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 2266 Invalid, 0 Unknown, 982 Unchecked, 1.0s Time] [2022-02-15 02:46:51,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1669 states. [2022-02-15 02:46:51,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1669 to 1409. [2022-02-15 02:46:51,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1409 states, 1404 states have (on average 1.4444444444444444) internal successors, (2028), 1404 states have internal predecessors, (2028), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 02:46:51,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1409 states to 1409 states and 2032 transitions. [2022-02-15 02:46:51,680 INFO L78 Accepts]: Start accepts. Automaton has 1409 states and 2032 transitions. Word has length 115 [2022-02-15 02:46:51,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 02:46:51,680 INFO L470 AbstractCegarLoop]: Abstraction has 1409 states and 2032 transitions. [2022-02-15 02:46:51,680 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 5.285714285714286) internal successors, (111), 20 states have internal predecessors, (111), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 02:46:51,680 INFO L276 IsEmpty]: Start isEmpty. Operand 1409 states and 2032 transitions. [2022-02-15 02:46:51,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-02-15 02:46:51,683 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 02:46:51,683 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, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 02:46:51,684 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-02-15 02:46:51,684 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 02:46:51,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 02:46:51,684 INFO L85 PathProgramCache]: Analyzing trace with hash 1255545852, now seen corresponding path program 1 times [2022-02-15 02:46:51,685 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 02:46:51,685 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1249411062] [2022-02-15 02:46:51,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 02:46:51,719 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 3 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=1, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-02-15 02:46:51,787 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-02-15 02:46:51,788 INFO L262 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-02-15 02:46:52,231 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 8 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=6, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-02-15 02:46:52,290 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-02-15 02:46:52,315 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 3 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=1, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-02-15 02:46:52,316 INFO L262 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-02-15 02:46:52,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 02:46:52,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 02:46:52,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 02:46:52,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 02:46:52,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 02:46:53,133 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 02:46:53,133 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1249411062] [2022-02-15 02:46:53,133 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1249411062] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 02:46:53,133 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 02:46:53,134 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-02-15 02:46:53,134 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098021459] [2022-02-15 02:46:53,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 02:46:53,134 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-02-15 02:46:53,134 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 02:46:53,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-02-15 02:46:53,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=398, Unknown=0, NotChecked=0, Total=506 [2022-02-15 02:46:53,135 INFO L87 Difference]: Start difference. First operand 1409 states and 2032 transitions. Second operand has 21 states, 20 states have (on average 5.6) internal successors, (112), 19 states have internal predecessors, (112), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 02:46:54,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 02:46:54,520 INFO L93 Difference]: Finished difference Result 2614 states and 3823 transitions. [2022-02-15 02:46:54,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-15 02:46:54,520 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 5.6) internal successors, (112), 19 states have internal predecessors, (112), 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 116 [2022-02-15 02:46:54,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 02:46:54,524 INFO L225 Difference]: With dead ends: 2614 [2022-02-15 02:46:54,524 INFO L226 Difference]: Without dead ends: 1377 [2022-02-15 02:46:54,526 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 51 SyntacticMatches, 8 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 420 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=279, Invalid=1203, Unknown=0, NotChecked=0, Total=1482 [2022-02-15 02:46:54,527 INFO L933 BasicCegarLoop]: 168 mSDtfsCounter, 854 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 2535 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 854 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 2940 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 2535 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 311 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-02-15 02:46:54,527 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [854 Valid, 220 Invalid, 2940 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 2535 Invalid, 0 Unknown, 311 Unchecked, 1.0s Time] [2022-02-15 02:46:54,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1377 states. [2022-02-15 02:46:54,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1377 to 1312. [2022-02-15 02:46:54,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1312 states, 1307 states have (on average 1.4269319051262432) internal successors, (1865), 1307 states have internal predecessors, (1865), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 02:46:54,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1312 states to 1312 states and 1869 transitions. [2022-02-15 02:46:54,639 INFO L78 Accepts]: Start accepts. Automaton has 1312 states and 1869 transitions. Word has length 116 [2022-02-15 02:46:54,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 02:46:54,640 INFO L470 AbstractCegarLoop]: Abstraction has 1312 states and 1869 transitions. [2022-02-15 02:46:54,640 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 5.6) internal successors, (112), 19 states have internal predecessors, (112), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 02:46:54,640 INFO L276 IsEmpty]: Start isEmpty. Operand 1312 states and 1869 transitions. [2022-02-15 02:46:54,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-02-15 02:46:54,643 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 02:46:54,643 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 02:46:54,643 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-02-15 02:46:54,643 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 02:46:54,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 02:46:54,643 INFO L85 PathProgramCache]: Analyzing trace with hash 1491612832, now seen corresponding path program 1 times [2022-02-15 02:46:54,644 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 02:46:54,644 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [550954000] [2022-02-15 02:46:54,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 02:46:54,675 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 3 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=1, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-02-15 02:46:54,751 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-02-15 02:46:54,751 INFO L262 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-02-15 02:46:55,228 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 8 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=6, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-02-15 02:46:55,293 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-02-15 02:46:55,319 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 3 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=1, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-02-15 02:46:55,319 INFO L262 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-02-15 02:46:55,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 02:46:55,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 02:46:55,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 02:46:55,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 02:46:55,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 02:46:56,528 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 02:46:56,528 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [550954000] [2022-02-15 02:46:56,528 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [550954000] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 02:46:56,528 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 02:46:56,528 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-02-15 02:46:56,528 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731072903] [2022-02-15 02:46:56,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 02:46:56,528 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-02-15 02:46:56,528 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 02:46:56,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-02-15 02:46:56,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=121, Invalid=431, Unknown=0, NotChecked=0, Total=552 [2022-02-15 02:46:56,529 INFO L87 Difference]: Start difference. First operand 1312 states and 1869 transitions. Second operand has 22 states, 21 states have (on average 5.380952380952381) internal successors, (113), 20 states have internal predecessors, (113), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 02:46:57,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 02:46:57,362 INFO L93 Difference]: Finished difference Result 2532 states and 3662 transitions. [2022-02-15 02:46:57,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-02-15 02:46:57,362 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 5.380952380952381) internal successors, (113), 20 states have internal predecessors, (113), 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 118 [2022-02-15 02:46:57,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 02:46:57,366 INFO L225 Difference]: With dead ends: 2532 [2022-02-15 02:46:57,367 INFO L226 Difference]: Without dead ends: 1402 [2022-02-15 02:46:57,369 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 53 SyntacticMatches, 9 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 409 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=219, Invalid=1041, Unknown=0, NotChecked=0, Total=1260 [2022-02-15 02:46:57,369 INFO L933 BasicCegarLoop]: 190 mSDtfsCounter, 283 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 1152 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 283 SdHoareTripleChecker+Valid, 278 SdHoareTripleChecker+Invalid, 1661 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 1152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 436 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-02-15 02:46:57,369 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [283 Valid, 278 Invalid, 1661 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 1152 Invalid, 0 Unknown, 436 Unchecked, 0.5s Time] [2022-02-15 02:46:57,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1402 states. [2022-02-15 02:46:57,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1402 to 1336. [2022-02-15 02:46:57,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1336 states, 1331 states have (on average 1.4222389181066868) internal successors, (1893), 1331 states have internal predecessors, (1893), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 02:46:57,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1336 states to 1336 states and 1897 transitions. [2022-02-15 02:46:57,513 INFO L78 Accepts]: Start accepts. Automaton has 1336 states and 1897 transitions. Word has length 118 [2022-02-15 02:46:57,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 02:46:57,513 INFO L470 AbstractCegarLoop]: Abstraction has 1336 states and 1897 transitions. [2022-02-15 02:46:57,513 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 5.380952380952381) internal successors, (113), 20 states have internal predecessors, (113), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 02:46:57,513 INFO L276 IsEmpty]: Start isEmpty. Operand 1336 states and 1897 transitions. [2022-02-15 02:46:57,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-02-15 02:46:57,516 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 02:46:57,516 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 02:46:57,516 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-02-15 02:46:57,516 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 02:46:57,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 02:46:57,517 INFO L85 PathProgramCache]: Analyzing trace with hash -894896674, now seen corresponding path program 1 times [2022-02-15 02:46:57,517 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 02:46:57,517 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1880178573] [2022-02-15 02:46:57,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 02:46:57,547 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 3 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=1, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-02-15 02:46:57,619 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-02-15 02:46:57,619 INFO L262 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-02-15 02:46:58,075 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 8 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=6, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-02-15 02:46:58,133 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-02-15 02:46:58,158 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 3 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=1, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-02-15 02:46:58,159 INFO L262 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-02-15 02:46:58,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 02:46:58,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 02:46:58,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 02:46:58,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 02:46:58,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 02:46:58,989 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 02:46:58,989 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1880178573] [2022-02-15 02:46:58,989 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1880178573] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 02:46:58,989 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 02:46:58,990 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-02-15 02:46:58,990 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121572819] [2022-02-15 02:46:58,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 02:46:58,990 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-02-15 02:46:58,990 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 02:46:58,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-02-15 02:46:58,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=182, Invalid=630, Unknown=0, NotChecked=0, Total=812 [2022-02-15 02:46:58,991 INFO L87 Difference]: Start difference. First operand 1336 states and 1897 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 27 states have internal predecessors, (113), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 02:47:00,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 02:47:00,912 INFO L93 Difference]: Finished difference Result 2852 states and 4147 transitions. [2022-02-15 02:47:00,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-02-15 02:47:00,912 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 27 states have internal predecessors, (113), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 118 [2022-02-15 02:47:00,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 02:47:00,918 INFO L225 Difference]: With dead ends: 2852 [2022-02-15 02:47:00,918 INFO L226 Difference]: Without dead ends: 1722 [2022-02-15 02:47:00,921 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 771 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=512, Invalid=2244, Unknown=0, NotChecked=0, Total=2756 [2022-02-15 02:47:00,922 INFO L933 BasicCegarLoop]: 194 mSDtfsCounter, 631 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 2501 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 631 SdHoareTripleChecker+Valid, 246 SdHoareTripleChecker+Invalid, 2534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 2501 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-02-15 02:47:00,922 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [631 Valid, 246 Invalid, 2534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 2501 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-02-15 02:47:00,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1722 states. [2022-02-15 02:47:01,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1722 to 1678. [2022-02-15 02:47:01,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1678 states, 1673 states have (on average 1.4411237298266586) internal successors, (2411), 1673 states have internal predecessors, (2411), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 02:47:01,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1678 states to 1678 states and 2415 transitions. [2022-02-15 02:47:01,134 INFO L78 Accepts]: Start accepts. Automaton has 1678 states and 2415 transitions. Word has length 118 [2022-02-15 02:47:01,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 02:47:01,135 INFO L470 AbstractCegarLoop]: Abstraction has 1678 states and 2415 transitions. [2022-02-15 02:47:01,135 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 27 states have internal predecessors, (113), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 02:47:01,135 INFO L276 IsEmpty]: Start isEmpty. Operand 1678 states and 2415 transitions. [2022-02-15 02:47:01,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2022-02-15 02:47:01,137 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 02:47:01,137 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, 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] [2022-02-15 02:47:01,137 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-02-15 02:47:01,137 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 02:47:01,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 02:47:01,138 INFO L85 PathProgramCache]: Analyzing trace with hash 230642199, now seen corresponding path program 1 times [2022-02-15 02:47:01,138 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 02:47:01,138 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1291966513] [2022-02-15 02:47:01,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 02:47:01,643 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 7 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=5, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-02-15 02:47:01,710 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-02-15 02:47:01,710 INFO L262 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-02-15 02:47:02,215 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 8 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=6, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-02-15 02:47:02,284 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 6 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=4, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-02-15 02:47:02,707 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 7 AssignedVariables, 1 ReadonlyVariables, Eigenvalues: {0={1=5, 2=1}, 1={1=2}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-02-15 02:47:02,708 INFO L262 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-02-15 02:47:02,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 02:47:02,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-15 02:47:02,720 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-15 02:47:02,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-15 02:47:02,751 INFO L138 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2022-02-15 02:47:02,751 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-02-15 02:47:02,753 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-02-15 02:47:02,754 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-02-15 02:47:02,756 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 02:47:02,758 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-15 02:47:02,789 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.02 02:47:02 BoogieIcfgContainer [2022-02-15 02:47:02,789 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-15 02:47:02,790 INFO L158 Benchmark]: Toolchain (without parser) took 39816.44ms. Allocated memory was 169.9MB in the beginning and 556.8MB in the end (delta: 386.9MB). Free memory was 111.5MB in the beginning and 319.6MB in the end (delta: -208.1MB). Peak memory consumption was 178.4MB. Max. memory is 8.0GB. [2022-02-15 02:47:02,790 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 169.9MB. Free memory is still 127.9MB. There was no memory consumed. Max. memory is 8.0GB. [2022-02-15 02:47:02,791 INFO L158 Benchmark]: CACSL2BoogieTranslator took 323.51ms. Allocated memory was 169.9MB in the beginning and 222.3MB in the end (delta: 52.4MB). Free memory was 111.2MB in the beginning and 189.8MB in the end (delta: -78.6MB). Peak memory consumption was 9.2MB. Max. memory is 8.0GB. [2022-02-15 02:47:02,791 INFO L158 Benchmark]: Boogie Preprocessor took 81.84ms. Allocated memory is still 222.3MB. Free memory was 189.8MB in the beginning and 187.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-02-15 02:47:02,791 INFO L158 Benchmark]: RCFGBuilder took 526.49ms. Allocated memory is still 222.3MB. Free memory was 187.7MB in the beginning and 159.9MB in the end (delta: 27.8MB). Peak memory consumption was 28.3MB. Max. memory is 8.0GB. [2022-02-15 02:47:02,792 INFO L158 Benchmark]: TraceAbstraction took 38878.46ms. Allocated memory was 222.3MB in the beginning and 556.8MB in the end (delta: 334.5MB). Free memory was 159.4MB in the beginning and 319.6MB in the end (delta: -160.1MB). Peak memory consumption was 175.9MB. Max. memory is 8.0GB. [2022-02-15 02:47:02,793 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 169.9MB. Free memory is still 127.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 323.51ms. Allocated memory was 169.9MB in the beginning and 222.3MB in the end (delta: 52.4MB). Free memory was 111.2MB in the beginning and 189.8MB in the end (delta: -78.6MB). Peak memory consumption was 9.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 81.84ms. Allocated memory is still 222.3MB. Free memory was 189.8MB in the beginning and 187.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 526.49ms. Allocated memory is still 222.3MB. Free memory was 187.7MB in the beginning and 159.9MB in the end (delta: 27.8MB). Peak memory consumption was 28.3MB. Max. memory is 8.0GB. * TraceAbstraction took 38878.46ms. Allocated memory was 222.3MB in the beginning and 556.8MB in the end (delta: 334.5MB). Free memory was 159.4MB in the beginning and 319.6MB in the end (delta: -160.1MB). Peak memory consumption was 175.9MB. 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: 619]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L624] int s ; [L625] int tmp ; [L629] s = 8464 [L630] 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 = __VERIFIER_nondet_int() ; [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 = __VERIFIER_nondet_int() ; [L50] int s__s3__tmp__next_state___0 ; [L51] int s__s3__tmp__new_cipher__algo_strength = __VERIFIER_nondet_int() ; [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 ; [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 ; [L85] s__state = initial_state [L86] blastFlag = 0 [L87] tmp = __VERIFIER_nondet_int() [L88] Time = tmp [L89] cb = 0 [L90] ret = -1 [L91] skip = 0 [L92] got_new_session = 0 [L93] COND TRUE s__info_callback != 0 [L94] cb = s__info_callback [L100] s__in_handshake ++ [L101] COND FALSE !(tmp___1 + 12288) [L106] COND FALSE !(s__cert == 0) [L110] COND TRUE 1 [L112] state = s__state [L113] COND FALSE !(s__state == 12292) [L116] COND FALSE !(s__state == 16384) [L119] COND FALSE !(s__state == 8192) [L122] COND FALSE !(s__state == 24576) [L125] COND FALSE !(s__state == 8195) [L128] COND FALSE !(s__state == 8480) [L131] COND FALSE !(s__state == 8481) [L134] COND FALSE !(s__state == 8482) [L137] COND TRUE s__state == 8464 [L283] s__shutdown = 0 [L284] ret = __VERIFIER_nondet_int() [L285] COND TRUE blastFlag == 0 [L286] blastFlag = 1 [L288] COND FALSE !(ret <= 0) [L291] got_new_session = 1 [L292] s__state = 8496 [L293] s__init_num = 0 [L591] COND FALSE !(! s__s3__tmp__reuse_message) [L608] skip = 0 [L110] COND TRUE 1 [L112] state = s__state [L113] COND FALSE !(s__state == 12292) [L116] COND FALSE !(s__state == 16384) [L119] COND FALSE !(s__state == 8192) [L122] COND FALSE !(s__state == 24576) [L125] COND FALSE !(s__state == 8195) [L128] COND FALSE !(s__state == 8480) [L131] COND FALSE !(s__state == 8481) [L134] COND FALSE !(s__state == 8482) [L137] COND FALSE !(s__state == 8464) [L140] COND FALSE !(s__state == 8465) [L143] COND FALSE !(s__state == 8466) [L146] COND TRUE s__state == 8496 [L297] ret = __VERIFIER_nondet_int() [L298] COND TRUE blastFlag == 1 [L299] blastFlag = 2 [L305] COND FALSE !(ret <= 0) [L308] COND TRUE \read(s__hit) [L309] s__state = 8656 [L313] s__init_num = 0 [L591] COND FALSE !(! s__s3__tmp__reuse_message) [L608] skip = 0 [L110] COND TRUE 1 [L112] state = s__state [L113] COND FALSE !(s__state == 12292) [L116] COND FALSE !(s__state == 16384) [L119] COND FALSE !(s__state == 8192) [L122] COND FALSE !(s__state == 24576) [L125] COND FALSE !(s__state == 8195) [L128] COND FALSE !(s__state == 8480) [L131] COND FALSE !(s__state == 8481) [L134] COND FALSE !(s__state == 8482) [L137] COND FALSE !(s__state == 8464) [L140] COND FALSE !(s__state == 8465) [L143] COND FALSE !(s__state == 8466) [L146] COND FALSE !(s__state == 8496) [L149] COND FALSE !(s__state == 8497) [L152] COND FALSE !(s__state == 8512) [L155] COND FALSE !(s__state == 8513) [L158] COND FALSE !(s__state == 8528) [L161] COND FALSE !(s__state == 8529) [L164] COND FALSE !(s__state == 8544) [L167] COND FALSE !(s__state == 8545) [L170] COND FALSE !(s__state == 8560) [L173] COND FALSE !(s__state == 8561) [L176] COND FALSE !(s__state == 8448) [L179] COND FALSE !(s__state == 8576) [L182] COND FALSE !(s__state == 8577) [L185] COND FALSE !(s__state == 8592) [L188] COND FALSE !(s__state == 8593) [L191] COND FALSE !(s__state == 8608) [L194] COND FALSE !(s__state == 8609) [L197] COND FALSE !(s__state == 8640) [L200] COND FALSE !(s__state == 8641) [L203] COND TRUE s__state == 8656 [L502] s__session__cipher = s__s3__tmp__new_cipher [L503] COND FALSE !(! tmp___9) [L507] ret = __VERIFIER_nondet_int() [L508] COND TRUE blastFlag == 2 [L509] blastFlag = 3 [L511] COND FALSE !(ret <= 0) [L514] s__state = 8672 [L515] s__init_num = 0 [L516] COND FALSE !(! tmp___10) [L591] COND FALSE !(! s__s3__tmp__reuse_message) [L608] skip = 0 [L110] COND TRUE 1 [L112] state = s__state [L113] COND FALSE !(s__state == 12292) [L116] COND FALSE !(s__state == 16384) [L119] COND FALSE !(s__state == 8192) [L122] COND FALSE !(s__state == 24576) [L125] COND FALSE !(s__state == 8195) [L128] COND FALSE !(s__state == 8480) [L131] COND FALSE !(s__state == 8481) [L134] COND FALSE !(s__state == 8482) [L137] COND FALSE !(s__state == 8464) [L140] COND FALSE !(s__state == 8465) [L143] COND FALSE !(s__state == 8466) [L146] COND FALSE !(s__state == 8496) [L149] COND FALSE !(s__state == 8497) [L152] COND FALSE !(s__state == 8512) [L155] COND FALSE !(s__state == 8513) [L158] COND FALSE !(s__state == 8528) [L161] COND FALSE !(s__state == 8529) [L164] COND FALSE !(s__state == 8544) [L167] COND FALSE !(s__state == 8545) [L170] COND FALSE !(s__state == 8560) [L173] COND FALSE !(s__state == 8561) [L176] COND FALSE !(s__state == 8448) [L179] COND FALSE !(s__state == 8576) [L182] COND FALSE !(s__state == 8577) [L185] COND FALSE !(s__state == 8592) [L188] COND FALSE !(s__state == 8593) [L191] COND FALSE !(s__state == 8608) [L194] COND FALSE !(s__state == 8609) [L197] COND FALSE !(s__state == 8640) [L200] COND FALSE !(s__state == 8641) [L203] COND FALSE !(s__state == 8656) [L206] COND FALSE !(s__state == 8657) [L209] COND TRUE s__state == 8672 [L523] ret = __VERIFIER_nondet_int() [L524] COND TRUE blastFlag == 3 [L619] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 153 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 38.8s, OverallIterations: 15, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 16.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 9902 SdHoareTripleChecker+Valid, 10.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 9900 mSDsluCounter, 3274 SdHoareTripleChecker+Invalid, 8.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 4669 IncrementalHoareTripleChecker+Unchecked, 674 mSDsCounter, 863 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 23088 IncrementalHoareTripleChecker+Invalid, 28620 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 863 mSolverCounterUnsat, 2600 mSDtfsCounter, 23088 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 991 GetRequests, 432 SyntacticMatches, 69 SemanticMatches, 490 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5362 ImplicationChecksByTransitivity, 10.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1678occurred in iteration=14, InterpolantAutomatonStates: 297, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.2s AutomataMinimizationTime, 14 MinimizatonAttempts, 1267 StatesRemovedByMinimization, 13 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! [2022-02-15 02:47:02,848 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...