/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_6.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-6c470ae [2022-02-15 02:47:05,307 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-15 02:47:05,308 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-15 02:47:05,367 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-02-15 02:47:05,404 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-15 02:47:05,405 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-15 02:47:05,405 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-15 02:47:05,406 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 02:47:05,414 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-15 02:47:05,414 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-15 02:47:05,415 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-15 02:47:05,415 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-15 02:47:05,416 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-15 02:47:05,416 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-15 02:47:05,416 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-15 02:47:05,416 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-15 02:47:05,416 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-15 02:47:05,416 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-15 02:47:05,417 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-15 02:47:05,417 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-15 02:47:05,417 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-15 02:47:05,417 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-15 02:47:05,417 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-15 02:47:05,417 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-15 02:47:05,418 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-15 02:47:05,418 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-15 02:47:05,418 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-15 02:47:05,418 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-15 02:47:05,418 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2022-02-15 02:47:05,419 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-15 02:47:05,419 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=JORDAN [2022-02-15 02:47:05,419 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-02-15 02:47:05,636 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-15 02:47:05,656 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-15 02:47:05,658 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-15 02:47:05,659 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-15 02:47:05,663 INFO L275 PluginConnector]: CDTParser initialized [2022-02-15 02:47:05,664 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl-simplified/s3_srvr_6.cil-2.c [2022-02-15 02:47:05,729 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8f026a9a4/f487d86469d143c081718497bd83de62/FLAG5466d6ff2 [2022-02-15 02:47:06,107 INFO L306 CDTParser]: Found 1 translation units. [2022-02-15 02:47:06,108 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl-simplified/s3_srvr_6.cil-2.c [2022-02-15 02:47:06,114 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8f026a9a4/f487d86469d143c081718497bd83de62/FLAG5466d6ff2 [2022-02-15 02:47:06,515 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8f026a9a4/f487d86469d143c081718497bd83de62 [2022-02-15 02:47:06,521 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-15 02:47:06,522 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-02-15 02:47:06,525 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-15 02:47:06,525 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-15 02:47:06,528 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-15 02:47:06,529 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 02:47:06" (1/1) ... [2022-02-15 02:47:06,529 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d6750e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:47:06, skipping insertion in model container [2022-02-15 02:47:06,529 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 02:47:06" (1/1) ... [2022-02-15 02:47:06,535 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-15 02:47:06,584 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-15 02:47:06,822 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_6.cil-2.c[48455,48468] [2022-02-15 02:47:06,826 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-15 02:47:06,830 INFO L203 MainTranslator]: Completed pre-run [2022-02-15 02:47:06,879 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_6.cil-2.c[48455,48468] [2022-02-15 02:47:06,883 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-15 02:47:06,901 INFO L208 MainTranslator]: Completed translation [2022-02-15 02:47:06,901 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:47:06 WrapperNode [2022-02-15 02:47:06,901 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-15 02:47:06,902 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-15 02:47:06,902 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-15 02:47:06,902 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-15 02:47:06,918 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:47:06" (1/1) ... [2022-02-15 02:47:06,919 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:47:06" (1/1) ... [2022-02-15 02:47:06,939 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:47:06" (1/1) ... [2022-02-15 02:47:06,940 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:47:06" (1/1) ... [2022-02-15 02:47:06,948 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:47:06" (1/1) ... [2022-02-15 02:47:06,965 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:47:06" (1/1) ... [2022-02-15 02:47:06,967 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:47:06" (1/1) ... [2022-02-15 02:47:06,969 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-15 02:47:06,970 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-15 02:47:06,970 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-15 02:47:06,970 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-15 02:47:06,979 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:47:06" (1/1) ... [2022-02-15 02:47:06,985 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-15 02:47:06,992 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-15 02:47:07,002 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 02:47:07,021 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 02:47:07,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-02-15 02:47:07,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-15 02:47:07,033 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-02-15 02:47:07,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-02-15 02:47:07,033 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-02-15 02:47:07,033 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-02-15 02:47:07,033 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-02-15 02:47:07,033 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-02-15 02:47:07,033 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-15 02:47:07,033 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-02-15 02:47:07,033 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-02-15 02:47:07,033 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-02-15 02:47:07,033 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-02-15 02:47:07,033 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-02-15 02:47:07,034 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-02-15 02:47:07,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-15 02:47:07,034 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-15 02:47:07,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-15 02:47:07,034 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-15 02:47:07,034 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-15 02:47:07,093 INFO L234 CfgBuilder]: Building ICFG [2022-02-15 02:47:07,094 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-15 02:47:07,164 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-02-15 02:47:07,505 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##90: assume false; [2022-02-15 02:47:07,505 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##91: assume !false; [2022-02-15 02:47:07,513 INFO L275 CfgBuilder]: Performing block encoding [2022-02-15 02:47:07,518 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-15 02:47:07,518 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-02-15 02:47:07,520 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 02:47:07 BoogieIcfgContainer [2022-02-15 02:47:07,520 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-15 02:47:07,521 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-15 02:47:07,521 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-15 02:47:07,526 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-15 02:47:07,527 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.02 02:47:06" (1/3) ... [2022-02-15 02:47:07,527 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45496f98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 02:47:07, skipping insertion in model container [2022-02-15 02:47:07,527 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:47:06" (2/3) ... [2022-02-15 02:47:07,528 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45496f98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 02:47:07, skipping insertion in model container [2022-02-15 02:47:07,528 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 02:47:07" (3/3) ... [2022-02-15 02:47:07,529 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr_6.cil-2.c [2022-02-15 02:47:07,533 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-02-15 02:47:07,533 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-15 02:47:07,571 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-15 02:47:07,578 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 02:47:07,578 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-02-15 02:47:07,596 INFO L276 IsEmpty]: Start isEmpty. Operand has 167 states, 159 states have (on average 1.7421383647798743) internal successors, (277), 160 states have internal predecessors, (277), 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 02:47:07,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-02-15 02:47:07,611 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 02:47:07,612 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 02:47:07,612 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 02:47:07,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 02:47:07,617 INFO L85 PathProgramCache]: Analyzing trace with hash 1438315917, now seen corresponding path program 1 times [2022-02-15 02:47:07,623 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 02:47:07,624 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [331971218] [2022-02-15 02:47:07,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 02:47:07,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 02:47:07,674 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 02:47:07,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 02:47:07,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 02:47:07,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 02:47:07,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 02:47:07,889 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 02:47:07,890 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [331971218] [2022-02-15 02:47:07,891 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [331971218] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 02:47:07,891 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 02:47:07,891 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-15 02:47:07,892 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861999388] [2022-02-15 02:47:07,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 02:47:07,895 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-15 02:47:07,895 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 02:47:07,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-15 02:47:07,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-02-15 02:47:07,916 INFO L87 Difference]: Start difference. First operand has 167 states, 159 states have (on average 1.7421383647798743) internal successors, (277), 160 states have internal predecessors, (277), 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 6 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 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 02:47:08,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 02:47:08,489 INFO L93 Difference]: Finished difference Result 373 states and 645 transitions. [2022-02-15 02:47:08,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-15 02:47:08,492 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 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 50 [2022-02-15 02:47:08,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 02:47:08,501 INFO L225 Difference]: With dead ends: 373 [2022-02-15 02:47:08,501 INFO L226 Difference]: Without dead ends: 199 [2022-02-15 02:47:08,504 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-02-15 02:47:08,507 INFO L933 BasicCegarLoop]: 204 mSDtfsCounter, 931 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 424 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 931 SdHoareTripleChecker+Valid, 225 SdHoareTripleChecker+Invalid, 487 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 424 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-02-15 02:47:08,507 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [931 Valid, 225 Invalid, 487 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 424 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-02-15 02:47:08,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2022-02-15 02:47:08,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 189. [2022-02-15 02:47:08,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189 states, 184 states have (on average 1.6467391304347827) internal successors, (303), 184 states have internal predecessors, (303), 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 02:47:08,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 307 transitions. [2022-02-15 02:47:08,591 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 307 transitions. Word has length 50 [2022-02-15 02:47:08,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 02:47:08,591 INFO L470 AbstractCegarLoop]: Abstraction has 189 states and 307 transitions. [2022-02-15 02:47:08,591 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 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 02:47:08,591 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 307 transitions. [2022-02-15 02:47:08,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-02-15 02:47:08,593 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 02:47:08,593 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, 1] [2022-02-15 02:47:08,594 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-15 02:47:08,594 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 02:47:08,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 02:47:08,594 INFO L85 PathProgramCache]: Analyzing trace with hash 931339332, now seen corresponding path program 1 times [2022-02-15 02:47:08,594 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 02:47:08,595 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1594846900] [2022-02-15 02:47:08,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 02:47:08,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 02:47:08,606 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 02:47:08,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 02:47:08,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 02:47:08,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 02:47:08,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 02:47:08,729 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 02:47:08,729 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1594846900] [2022-02-15 02:47:08,730 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1594846900] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 02:47:08,730 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 02:47:08,730 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-15 02:47:08,730 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472263473] [2022-02-15 02:47:08,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 02:47:08,731 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-15 02:47:08,731 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 02:47:08,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-15 02:47:08,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-02-15 02:47:08,732 INFO L87 Difference]: Start difference. First operand 189 states and 307 transitions. Second operand has 6 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 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 02:47:09,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 02:47:09,161 INFO L93 Difference]: Finished difference Result 413 states and 685 transitions. [2022-02-15 02:47:09,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-15 02:47:09,162 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 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 51 [2022-02-15 02:47:09,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 02:47:09,163 INFO L225 Difference]: With dead ends: 413 [2022-02-15 02:47:09,164 INFO L226 Difference]: Without dead ends: 238 [2022-02-15 02:47:09,164 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-02-15 02:47:09,165 INFO L933 BasicCegarLoop]: 165 mSDtfsCounter, 796 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 365 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 796 SdHoareTripleChecker+Valid, 182 SdHoareTripleChecker+Invalid, 426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 365 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-02-15 02:47:09,166 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [796 Valid, 182 Invalid, 426 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 365 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-02-15 02:47:09,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2022-02-15 02:47:09,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 228. [2022-02-15 02:47:09,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 228 states, 223 states have (on average 1.6860986547085202) internal successors, (376), 223 states have internal predecessors, (376), 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 02:47:09,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 380 transitions. [2022-02-15 02:47:09,197 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 380 transitions. Word has length 51 [2022-02-15 02:47:09,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 02:47:09,197 INFO L470 AbstractCegarLoop]: Abstraction has 228 states and 380 transitions. [2022-02-15 02:47:09,197 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 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 02:47:09,197 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 380 transitions. [2022-02-15 02:47:09,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-02-15 02:47:09,204 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 02:47:09,205 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 02:47:09,207 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-15 02:47:09,208 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 02:47:09,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 02:47:09,214 INFO L85 PathProgramCache]: Analyzing trace with hash 1405895752, now seen corresponding path program 1 times [2022-02-15 02:47:09,214 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 02:47:09,214 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2124407963] [2022-02-15 02:47:09,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 02:47:09,351 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 02:47:09,352 INFO L262 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2022-02-15 02:47:09,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 02:47:09,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 02:47:09,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 02:47:09,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 02:47:09,447 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 02:47:10,469 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 02:47:10,470 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2124407963] [2022-02-15 02:47:10,470 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [2124407963] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 02:47:10,470 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 02:47:10,470 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2022-02-15 02:47:10,470 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567168079] [2022-02-15 02:47:10,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 02:47:10,471 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-02-15 02:47:10,471 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 02:47:10,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-02-15 02:47:10,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=365, Invalid=565, Unknown=0, NotChecked=0, Total=930 [2022-02-15 02:47:10,472 INFO L87 Difference]: Start difference. First operand 228 states and 380 transitions. Second operand has 31 states, 31 states have (on average 2.3870967741935485) internal successors, (74), 30 states have internal predecessors, (74), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 02:47:12,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 02:47:12,456 INFO L93 Difference]: Finished difference Result 816 states and 1355 transitions. [2022-02-15 02:47:12,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-02-15 02:47:12,456 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 2.3870967741935485) internal successors, (74), 30 states have internal predecessors, (74), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 78 [2022-02-15 02:47:12,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 02:47:12,459 INFO L225 Difference]: With dead ends: 816 [2022-02-15 02:47:12,459 INFO L226 Difference]: Without dead ends: 540 [2022-02-15 02:47:12,461 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 541 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=1263, Invalid=2519, Unknown=0, NotChecked=0, Total=3782 [2022-02-15 02:47:12,462 INFO L933 BasicCegarLoop]: 264 mSDtfsCounter, 1359 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 2078 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1359 SdHoareTripleChecker+Valid, 286 SdHoareTripleChecker+Invalid, 2150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 2078 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-02-15 02:47:12,462 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1359 Valid, 286 Invalid, 2150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 2078 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-02-15 02:47:12,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 540 states. [2022-02-15 02:47:12,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 540 to 455. [2022-02-15 02:47:12,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 455 states, 450 states have (on average 1.6355555555555557) internal successors, (736), 450 states have internal predecessors, (736), 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 02:47:12,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 455 states to 455 states and 740 transitions. [2022-02-15 02:47:12,512 INFO L78 Accepts]: Start accepts. Automaton has 455 states and 740 transitions. Word has length 78 [2022-02-15 02:47:12,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 02:47:12,512 INFO L470 AbstractCegarLoop]: Abstraction has 455 states and 740 transitions. [2022-02-15 02:47:12,512 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 2.3870967741935485) internal successors, (74), 30 states have internal predecessors, (74), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 02:47:12,512 INFO L276 IsEmpty]: Start isEmpty. Operand 455 states and 740 transitions. [2022-02-15 02:47:12,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-02-15 02:47:12,515 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 02:47:12,515 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, 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 02:47:12,515 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-02-15 02:47:12,515 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 02:47:12,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 02:47:12,515 INFO L85 PathProgramCache]: Analyzing trace with hash 93928679, now seen corresponding path program 1 times [2022-02-15 02:47:12,516 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 02:47:12,516 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1537303438] [2022-02-15 02:47:12,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 02:47:12,554 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 02:47:12,554 INFO L262 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2022-02-15 02:47:13,123 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 02:47:13,163 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 02:47:13,163 INFO L262 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-02-15 02:47:13,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 02:47:13,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 02:47:13,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 02:47:13,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 02:47:13,300 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 02:47:13,672 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 02:47:13,672 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1537303438] [2022-02-15 02:47:13,673 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1537303438] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 02:47:13,673 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 02:47:13,673 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-02-15 02:47:13,673 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544174725] [2022-02-15 02:47:13,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 02:47:13,673 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-15 02:47:13,673 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 02:47:13,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-15 02:47:13,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=208, Unknown=0, NotChecked=0, Total=272 [2022-02-15 02:47:13,674 INFO L87 Difference]: Start difference. First operand 455 states and 740 transitions. Second operand has 17 states, 16 states have (on average 5.625) internal successors, (90), 15 states have internal predecessors, (90), 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 02:47:14,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 02:47:14,913 INFO L93 Difference]: Finished difference Result 969 states and 1608 transitions. [2022-02-15 02:47:14,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-02-15 02:47:14,914 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 5.625) internal successors, (90), 15 states have internal predecessors, (90), 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 94 [2022-02-15 02:47:14,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 02:47:14,917 INFO L225 Difference]: With dead ends: 969 [2022-02-15 02:47:14,917 INFO L226 Difference]: Without dead ends: 528 [2022-02-15 02:47:14,919 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 33 SyntacticMatches, 8 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 184 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=198, Invalid=672, Unknown=0, NotChecked=0, Total=870 [2022-02-15 02:47:14,920 INFO L933 BasicCegarLoop]: 214 mSDtfsCounter, 1273 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 1809 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1273 SdHoareTripleChecker+Valid, 246 SdHoareTripleChecker+Invalid, 1889 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 1809 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-02-15 02:47:14,922 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1273 Valid, 246 Invalid, 1889 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 1809 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-02-15 02:47:14,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 528 states. [2022-02-15 02:47:14,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 528 to 511. [2022-02-15 02:47:14,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 511 states, 506 states have (on average 1.5810276679841897) internal successors, (800), 506 states have internal predecessors, (800), 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 02:47:14,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 511 states to 511 states and 804 transitions. [2022-02-15 02:47:14,965 INFO L78 Accepts]: Start accepts. Automaton has 511 states and 804 transitions. Word has length 94 [2022-02-15 02:47:14,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 02:47:14,967 INFO L470 AbstractCegarLoop]: Abstraction has 511 states and 804 transitions. [2022-02-15 02:47:14,967 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 5.625) internal successors, (90), 15 states have internal predecessors, (90), 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 02:47:14,967 INFO L276 IsEmpty]: Start isEmpty. Operand 511 states and 804 transitions. [2022-02-15 02:47:14,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-02-15 02:47:14,975 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 02:47:14,975 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 02:47:14,975 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-02-15 02:47:14,975 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 02:47:14,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 02:47:14,976 INFO L85 PathProgramCache]: Analyzing trace with hash 579503083, now seen corresponding path program 1 times [2022-02-15 02:47:14,976 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 02:47:14,976 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1553080634] [2022-02-15 02:47:14,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 02:47:15,058 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 02:47:15,091 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 02:47:15,091 INFO L262 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-02-15 02:47:15,169 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 02:47:15,602 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 02:47:15,636 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 02:47:15,636 INFO L262 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-02-15 02:47:15,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 02:47:15,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 02:47:15,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 02:47:15,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 02:47:15,705 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 02:47:16,269 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 02:47:16,270 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1553080634] [2022-02-15 02:47:16,270 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1553080634] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 02:47:16,270 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 02:47:16,270 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-02-15 02:47:16,270 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115964678] [2022-02-15 02:47:16,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 02:47:16,271 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-02-15 02:47:16,271 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 02:47:16,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-02-15 02:47:16,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=138, Invalid=512, Unknown=0, NotChecked=0, Total=650 [2022-02-15 02:47:16,272 INFO L87 Difference]: Start difference. First operand 511 states and 804 transitions. Second operand has 26 states, 26 states have (on average 4.269230769230769) internal successors, (111), 25 states have internal predecessors, (111), 1 states have call successors, (3), 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 02:47:17,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 02:47:17,995 INFO L93 Difference]: Finished difference Result 1061 states and 1678 transitions. [2022-02-15 02:47:17,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-02-15 02:47:17,996 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.269230769230769) internal successors, (111), 25 states have internal predecessors, (111), 1 states have call successors, (3), 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 115 [2022-02-15 02:47:17,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 02:47:17,998 INFO L225 Difference]: With dead ends: 1061 [2022-02-15 02:47:17,998 INFO L226 Difference]: Without dead ends: 577 [2022-02-15 02:47:18,000 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 49 SyntacticMatches, 1 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 625 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=408, Invalid=1944, Unknown=0, NotChecked=0, Total=2352 [2022-02-15 02:47:18,001 INFO L933 BasicCegarLoop]: 202 mSDtfsCounter, 742 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 2828 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 742 SdHoareTripleChecker+Valid, 244 SdHoareTripleChecker+Invalid, 2874 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 2828 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-02-15 02:47:18,001 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [742 Valid, 244 Invalid, 2874 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 2828 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-02-15 02:47:18,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 577 states. [2022-02-15 02:47:18,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 577 to 568. [2022-02-15 02:47:18,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 568 states, 563 states have (on average 1.5257548845470692) internal successors, (859), 563 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 02:47:18,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 568 states to 568 states and 863 transitions. [2022-02-15 02:47:18,044 INFO L78 Accepts]: Start accepts. Automaton has 568 states and 863 transitions. Word has length 115 [2022-02-15 02:47:18,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 02:47:18,046 INFO L470 AbstractCegarLoop]: Abstraction has 568 states and 863 transitions. [2022-02-15 02:47:18,046 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 4.269230769230769) internal successors, (111), 25 states have internal predecessors, (111), 1 states have call successors, (3), 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 02:47:18,046 INFO L276 IsEmpty]: Start isEmpty. Operand 568 states and 863 transitions. [2022-02-15 02:47:18,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-02-15 02:47:18,049 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 02:47:18,049 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 02:47:18,049 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-02-15 02:47:18,050 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 02:47:18,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 02:47:18,050 INFO L85 PathProgramCache]: Analyzing trace with hash -1807006423, now seen corresponding path program 1 times [2022-02-15 02:47:18,050 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 02:47:18,050 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [26647993] [2022-02-15 02:47:18,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 02:47:18,163 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 02:47:18,198 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 02:47:18,198 INFO L262 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-02-15 02:47:18,664 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 02:47:18,723 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 02:47:18,750 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 02:47:18,751 INFO L262 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-02-15 02:47:18,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 02:47:18,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 02:47:18,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 02:47:18,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 02:47:18,800 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 02:47:19,500 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 02:47:19,501 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [26647993] [2022-02-15 02:47:19,501 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [26647993] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 02:47:19,501 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 02:47:19,501 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2022-02-15 02:47:19,501 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222646918] [2022-02-15 02:47:19,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 02:47:19,501 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-02-15 02:47:19,502 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 02:47:19,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-02-15 02:47:19,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=170, Invalid=586, Unknown=0, NotChecked=0, Total=756 [2022-02-15 02:47:19,502 INFO L87 Difference]: Start difference. First operand 568 states and 863 transitions. Second operand has 27 states, 27 states have (on average 4.111111111111111) internal successors, (111), 26 states have internal predecessors, (111), 1 states have call successors, (3), 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 02:47:21,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 02:47:21,751 INFO L93 Difference]: Finished difference Result 1312 states and 2070 transitions. [2022-02-15 02:47:21,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-02-15 02:47:21,753 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 4.111111111111111) internal successors, (111), 26 states have internal predecessors, (111), 1 states have call successors, (3), 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 115 [2022-02-15 02:47:21,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 02:47:21,757 INFO L225 Difference]: With dead ends: 1312 [2022-02-15 02:47:21,757 INFO L226 Difference]: Without dead ends: 828 [2022-02-15 02:47:21,760 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 689 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=478, Invalid=2072, Unknown=0, NotChecked=0, Total=2550 [2022-02-15 02:47:21,760 INFO L933 BasicCegarLoop]: 202 mSDtfsCounter, 720 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 3598 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 720 SdHoareTripleChecker+Valid, 264 SdHoareTripleChecker+Invalid, 3652 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 3598 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-02-15 02:47:21,761 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [720 Valid, 264 Invalid, 3652 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 3598 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-02-15 02:47:21,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 828 states. [2022-02-15 02:47:21,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 828 to 819. [2022-02-15 02:47:21,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 819 states, 814 states have (on average 1.5307125307125307) internal successors, (1246), 814 states have internal predecessors, (1246), 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 02:47:21,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 819 states to 819 states and 1250 transitions. [2022-02-15 02:47:21,816 INFO L78 Accepts]: Start accepts. Automaton has 819 states and 1250 transitions. Word has length 115 [2022-02-15 02:47:21,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 02:47:21,817 INFO L470 AbstractCegarLoop]: Abstraction has 819 states and 1250 transitions. [2022-02-15 02:47:21,817 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 4.111111111111111) internal successors, (111), 26 states have internal predecessors, (111), 1 states have call successors, (3), 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 02:47:21,817 INFO L276 IsEmpty]: Start isEmpty. Operand 819 states and 1250 transitions. [2022-02-15 02:47:21,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2022-02-15 02:47:21,821 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 02:47:21,821 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 02:47:21,821 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-02-15 02:47:21,821 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 02:47:21,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 02:47:21,821 INFO L85 PathProgramCache]: Analyzing trace with hash -308262511, now seen corresponding path program 1 times [2022-02-15 02:47:21,822 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 02:47:21,822 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [529083486] [2022-02-15 02:47:21,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 02:47:21,905 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 02:47:22,352 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 02:47:22,382 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 02:47:22,383 INFO L262 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-02-15 02:47:22,793 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 02:47:23,223 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 02:47:23,293 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 02:47:23,326 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 02:47:23,327 INFO L262 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-02-15 02:47:23,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 02:47:23,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 02:47:23,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 02:47:23,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 02:47:23,498 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 02:47:24,293 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 02:47:24,294 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [529083486] [2022-02-15 02:47:24,294 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [529083486] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 02:47:24,294 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 02:47:24,294 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-02-15 02:47:24,294 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445532193] [2022-02-15 02:47:24,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 02:47:24,294 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-02-15 02:47:24,295 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 02:47:24,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-02-15 02:47:24,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=166, Invalid=826, Unknown=0, NotChecked=0, Total=992 [2022-02-15 02:47:24,295 INFO L87 Difference]: Start difference. First operand 819 states and 1250 transitions. Second operand has 30 states, 29 states have (on average 4.448275862068965) internal successors, (129), 28 states have internal predecessors, (129), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 02:47:27,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 02:47:27,372 INFO L93 Difference]: Finished difference Result 1893 states and 2986 transitions. [2022-02-15 02:47:27,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-02-15 02:47:27,372 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 29 states have (on average 4.448275862068965) internal successors, (129), 28 states have internal predecessors, (129), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 138 [2022-02-15 02:47:27,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 02:47:27,376 INFO L225 Difference]: With dead ends: 1893 [2022-02-15 02:47:27,376 INFO L226 Difference]: Without dead ends: 1177 [2022-02-15 02:47:27,378 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 85 SyntacticMatches, 8 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 982 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=442, Invalid=2638, Unknown=0, NotChecked=0, Total=3080 [2022-02-15 02:47:27,379 INFO L933 BasicCegarLoop]: 267 mSDtfsCounter, 931 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 6544 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 931 SdHoareTripleChecker+Valid, 364 SdHoareTripleChecker+Invalid, 6611 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 6544 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-15 02:47:27,379 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [931 Valid, 364 Invalid, 6611 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 6544 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-02-15 02:47:27,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1177 states. [2022-02-15 02:47:27,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1177 to 1034. [2022-02-15 02:47:27,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1034 states, 1029 states have (on average 1.467444120505345) internal successors, (1510), 1029 states have internal predecessors, (1510), 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 02:47:27,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1034 states to 1034 states and 1514 transitions. [2022-02-15 02:47:27,446 INFO L78 Accepts]: Start accepts. Automaton has 1034 states and 1514 transitions. Word has length 138 [2022-02-15 02:47:27,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 02:47:27,446 INFO L470 AbstractCegarLoop]: Abstraction has 1034 states and 1514 transitions. [2022-02-15 02:47:27,447 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 29 states have (on average 4.448275862068965) internal successors, (129), 28 states have internal predecessors, (129), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 02:47:27,447 INFO L276 IsEmpty]: Start isEmpty. Operand 1034 states and 1514 transitions. [2022-02-15 02:47:27,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2022-02-15 02:47:27,449 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 02:47:27,449 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 02:47:27,449 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-02-15 02:47:27,449 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 02:47:27,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 02:47:27,450 INFO L85 PathProgramCache]: Analyzing trace with hash -969334681, now seen corresponding path program 1 times [2022-02-15 02:47:27,450 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 02:47:27,450 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1996563103] [2022-02-15 02:47:27,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 02:47:27,542 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 02:47:31,070 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 7 AssignedVariables, 2 ReadonlyVariables, Eigenvalues: {0={1=5, 2=1}, 1={1=3}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-02-15 02:47:31,496 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 02:47:31,531 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 02:47:31,532 INFO L262 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-02-15 02:47:32,004 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 02:47:32,475 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 02:47:32,554 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 02:47:32,586 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 02:47:35,808 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 7 AssignedVariables, 2 ReadonlyVariables, Eigenvalues: {0={1=5, 2=1}, 1={1=3}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-02-15 02:47:35,809 INFO L262 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-02-15 02:47:35,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 02:47:35,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 02:47:35,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 02:47:35,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 02:47:35,895 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 02:47:37,043 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 02:47:37,044 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1996563103] [2022-02-15 02:47:37,044 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1996563103] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 02:47:37,044 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 02:47:37,044 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [35] imperfect sequences [] total 35 [2022-02-15 02:47:37,044 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522599491] [2022-02-15 02:47:37,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 02:47:37,044 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2022-02-15 02:47:37,045 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 02:47:37,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2022-02-15 02:47:37,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=228, Invalid=1104, Unknown=0, NotChecked=0, Total=1332 [2022-02-15 02:47:37,045 INFO L87 Difference]: Start difference. First operand 1034 states and 1514 transitions. Second operand has 35 states, 35 states have (on average 4.514285714285714) internal successors, (158), 34 states have internal predecessors, (158), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 02:47:39,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 02:47:39,904 INFO L93 Difference]: Finished difference Result 2345 states and 3480 transitions. [2022-02-15 02:47:39,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-02-15 02:47:39,905 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 4.514285714285714) internal successors, (158), 34 states have internal predecessors, (158), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 164 [2022-02-15 02:47:39,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 02:47:39,909 INFO L225 Difference]: With dead ends: 2345 [2022-02-15 02:47:39,909 INFO L226 Difference]: Without dead ends: 1395 [2022-02-15 02:47:39,911 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 88 SyntacticMatches, 1 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1426 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=618, Invalid=3938, Unknown=0, NotChecked=0, Total=4556 [2022-02-15 02:47:39,912 INFO L933 BasicCegarLoop]: 205 mSDtfsCounter, 735 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 4841 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 735 SdHoareTripleChecker+Valid, 267 SdHoareTripleChecker+Invalid, 4886 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 4841 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-02-15 02:47:39,912 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [735 Valid, 267 Invalid, 4886 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 4841 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-02-15 02:47:39,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1395 states. [2022-02-15 02:47:40,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1395 to 1385. [2022-02-15 02:47:40,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1385 states, 1380 states have (on average 1.46231884057971) internal successors, (2018), 1380 states have internal predecessors, (2018), 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 02:47:40,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1385 states to 1385 states and 2022 transitions. [2022-02-15 02:47:40,019 INFO L78 Accepts]: Start accepts. Automaton has 1385 states and 2022 transitions. Word has length 164 [2022-02-15 02:47:40,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 02:47:40,019 INFO L470 AbstractCegarLoop]: Abstraction has 1385 states and 2022 transitions. [2022-02-15 02:47:40,019 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 4.514285714285714) internal successors, (158), 34 states have internal predecessors, (158), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 02:47:40,019 INFO L276 IsEmpty]: Start isEmpty. Operand 1385 states and 2022 transitions. [2022-02-15 02:47:40,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-02-15 02:47:40,023 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 02:47:40,024 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 02:47:40,024 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-02-15 02:47:40,024 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 02:47:40,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 02:47:40,024 INFO L85 PathProgramCache]: Analyzing trace with hash 1787956614, now seen corresponding path program 1 times [2022-02-15 02:47:40,025 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 02:47:40,025 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [410131190] [2022-02-15 02:47:40,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 02:47:40,097 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 02:47:40,495 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 02:54:39,337 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 9 AssignedVariables, 2 ReadonlyVariables, Eigenvalues: {0={1=7, 2=1}, 1={1=3}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-02-15 02:54:39,366 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 02:54:39,367 INFO L262 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-02-15 02:54:39,814 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 02:54:40,247 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 03:01:42,693 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 9 AssignedVariables, 2 ReadonlyVariables, Eigenvalues: {0={1=7, 2=1}, 1={1=3}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-02-15 03:01:42,765 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 03:01:42,794 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 03:01:42,795 INFO L262 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2022-02-15 03:01:42,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:01:42,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:01:42,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:01:42,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:01:42,938 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 03:01:45,033 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:01:45,034 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [410131190] [2022-02-15 03:01:45,034 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [410131190] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:01:45,034 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:01:45,034 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [42] imperfect sequences [] total 42 [2022-02-15 03:01:45,034 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972309419] [2022-02-15 03:01:45,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:01:45,034 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2022-02-15 03:01:45,035 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:01:45,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2022-02-15 03:01:45,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=264, Invalid=1716, Unknown=0, NotChecked=0, Total=1980 [2022-02-15 03:01:45,036 INFO L87 Difference]: Start difference. First operand 1385 states and 2022 transitions. Second operand has 42 states, 41 states have (on average 3.926829268292683) internal successors, (161), 40 states have internal predecessors, (161), 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)