/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationQvasr_64.epf -i ../../../trunk/examples/svcomp/openssl-simplified/s3_srvr_1.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05ce600 [2022-02-24 04:15:51,699 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-24 04:15:51,701 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-24 04:15:51,732 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-02-24 04:15:51,747 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-24 04:15:51,749 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-24 04:15:51,750 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-24 04:15:51,752 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-24 04:15:51,753 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-24 04:15:51,753 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-24 04:15:51,755 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-24 04:15:51,759 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-24 04:15:51,759 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-24 04:15:51,760 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-24 04:15:51,761 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-24 04:15:51,761 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-24 04:15:51,763 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-02-24 04:15:51,769 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-24 04:15:51,769 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-24 04:15:51,770 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-24 04:15:51,770 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationQvasr_64.epf [2022-02-24 04:15:51,780 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-24 04:15:51,780 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-24 04:15:51,781 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-24 04:15:51,781 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-24 04:15:51,782 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-24 04:15:51,782 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-24 04:15:51,782 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-24 04:15:51,782 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-24 04:15:51,782 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-24 04:15:51,782 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-24 04:15:51,782 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-24 04:15:51,783 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-24 04:15:51,783 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-24 04:15:51,783 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-24 04:15:51,783 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-24 04:15:51,783 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-24 04:15:51,783 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-24 04:15:51,783 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2022-02-24 04:15:51,783 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-24 04:15:51,783 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=QVASR [2022-02-24 04:15:51,783 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-02-24 04:15:51,970 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-24 04:15:51,991 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-24 04:15:51,993 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-24 04:15:51,993 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-24 04:15:51,994 INFO L275 PluginConnector]: CDTParser initialized [2022-02-24 04:15:51,995 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl-simplified/s3_srvr_1.cil-1.c [2022-02-24 04:15:52,059 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/508ea48f6/9dd54abf10614b5f9885b1420ce3d78b/FLAG3dc33a798 [2022-02-24 04:15:52,439 INFO L306 CDTParser]: Found 1 translation units. [2022-02-24 04:15:52,440 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl-simplified/s3_srvr_1.cil-1.c [2022-02-24 04:15:52,453 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/508ea48f6/9dd54abf10614b5f9885b1420ce3d78b/FLAG3dc33a798 [2022-02-24 04:15:52,466 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/508ea48f6/9dd54abf10614b5f9885b1420ce3d78b [2022-02-24 04:15:52,468 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-24 04:15:52,469 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-02-24 04:15:52,473 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-24 04:15:52,473 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-24 04:15:52,475 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-24 04:15:52,475 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 04:15:52" (1/1) ... [2022-02-24 04:15:52,476 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32dd9ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:15:52, skipping insertion in model container [2022-02-24 04:15:52,476 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 04:15:52" (1/1) ... [2022-02-24 04:15:52,481 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-24 04:15:52,530 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-24 04:15:52,741 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_1.cil-1.c[43309,43322] [2022-02-24 04:15:52,763 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-24 04:15:52,768 INFO L203 MainTranslator]: Completed pre-run [2022-02-24 04:15:52,830 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_1.cil-1.c[43309,43322] [2022-02-24 04:15:52,832 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-24 04:15:52,852 INFO L208 MainTranslator]: Completed translation [2022-02-24 04:15:52,853 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:15:52 WrapperNode [2022-02-24 04:15:52,853 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-24 04:15:52,854 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-24 04:15:52,854 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-24 04:15:52,854 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-24 04:15:52,861 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:15:52" (1/1) ... [2022-02-24 04:15:52,862 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:15:52" (1/1) ... [2022-02-24 04:15:52,869 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:15:52" (1/1) ... [2022-02-24 04:15:52,869 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:15:52" (1/1) ... [2022-02-24 04:15:52,880 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:15:52" (1/1) ... [2022-02-24 04:15:52,886 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:15:52" (1/1) ... [2022-02-24 04:15:52,888 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:15:52" (1/1) ... [2022-02-24 04:15:52,890 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-24 04:15:52,891 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-24 04:15:52,891 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-24 04:15:52,891 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-24 04:15:52,892 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:15:52" (1/1) ... [2022-02-24 04:15:52,908 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-24 04:15:52,925 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-24 04:15:52,939 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) [2022-02-24 04:15:52,941 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 [2022-02-24 04:15:52,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-02-24 04:15:52,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-24 04:15:52,973 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-02-24 04:15:52,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-02-24 04:15:52,974 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-02-24 04:15:52,974 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-02-24 04:15:52,974 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-02-24 04:15:52,974 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-02-24 04:15:52,974 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-24 04:15:52,975 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-02-24 04:15:52,975 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-02-24 04:15:52,975 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-02-24 04:15:52,975 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-02-24 04:15:52,975 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-02-24 04:15:52,975 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-02-24 04:15:52,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-24 04:15:52,975 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-24 04:15:52,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-24 04:15:52,975 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-24 04:15:52,975 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-24 04:15:53,034 INFO L234 CfgBuilder]: Building ICFG [2022-02-24 04:15:53,035 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-24 04:15:53,088 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-02-24 04:15:53,391 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##90: assume false; [2022-02-24 04:15:53,392 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##91: assume !false; [2022-02-24 04:15:53,396 INFO L275 CfgBuilder]: Performing block encoding [2022-02-24 04:15:53,401 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-24 04:15:53,401 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-02-24 04:15:53,402 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 04:15:53 BoogieIcfgContainer [2022-02-24 04:15:53,403 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-24 04:15:53,404 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-24 04:15:53,404 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-24 04:15:53,413 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-24 04:15:53,413 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.02 04:15:52" (1/3) ... [2022-02-24 04:15:53,414 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21e7323c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 04:15:53, skipping insertion in model container [2022-02-24 04:15:53,414 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:15:52" (2/3) ... [2022-02-24 04:15:53,414 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21e7323c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 04:15:53, skipping insertion in model container [2022-02-24 04:15:53,414 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 04:15:53" (3/3) ... [2022-02-24 04:15:53,415 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr_1.cil-1.c [2022-02-24 04:15:53,419 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-02-24 04:15:53,419 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-24 04:15:53,452 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-24 04:15:53,460 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=AcceleratedInterpolation, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=QVASR [2022-02-24 04:15:53,461 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-02-24 04:15:53,478 INFO L276 IsEmpty]: Start isEmpty. Operand has 152 states, 144 states have (on average 1.7013888888888888) internal successors, (245), 145 states have internal predecessors, (245), 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) [2022-02-24 04:15:53,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-02-24 04:15:53,501 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 04:15:53,501 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] [2022-02-24 04:15:53,501 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 04:15:53,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 04:15:53,508 INFO L85 PathProgramCache]: Analyzing trace with hash 1979865033, now seen corresponding path program 1 times [2022-02-24 04:15:53,513 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 04:15:53,514 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [712520521] [2022-02-24 04:15:53,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 04:15:53,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 04:15:53,557 INFO L213 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-24 04:15:53,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 04:15:53,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 04:15:53,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 04:15:53,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 04:15:53,798 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 04:15:53,799 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [712520521] [2022-02-24 04:15:53,800 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [712520521] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 04:15:53,800 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 04:15:53,800 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-24 04:15:53,801 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684554154] [2022-02-24 04:15:53,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 04:15:53,806 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-24 04:15:53,806 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 04:15:53,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-24 04:15:53,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 04:15:53,832 INFO L87 Difference]: Start difference. First operand has 152 states, 144 states have (on average 1.7013888888888888) internal successors, (245), 145 states have internal predecessors, (245), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 04:15:54,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 04:15:54,145 INFO L93 Difference]: Finished difference Result 420 states and 707 transitions. [2022-02-24 04:15:54,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-24 04:15:54,148 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (3), 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 51 [2022-02-24 04:15:54,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 04:15:54,155 INFO L225 Difference]: With dead ends: 420 [2022-02-24 04:15:54,155 INFO L226 Difference]: Without dead ends: 255 [2022-02-24 04:15:54,158 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-02-24 04:15:54,160 INFO L933 BasicCegarLoop]: 241 mSDtfsCounter, 637 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 239 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 639 SdHoareTripleChecker+Valid, 250 SdHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-24 04:15:54,160 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [639 Valid, 250 Invalid, 247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 239 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-24 04:15:54,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2022-02-24 04:15:54,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 255. [2022-02-24 04:15:54,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255 states, 250 states have (on average 1.52) internal successors, (380), 250 states have internal predecessors, (380), 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) [2022-02-24 04:15:54,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 384 transitions. [2022-02-24 04:15:54,202 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 384 transitions. Word has length 51 [2022-02-24 04:15:54,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 04:15:54,202 INFO L470 AbstractCegarLoop]: Abstraction has 255 states and 384 transitions. [2022-02-24 04:15:54,202 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 04:15:54,202 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 384 transitions. [2022-02-24 04:15:54,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-02-24 04:15:54,204 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 04:15:54,204 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 04:15:54,205 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-24 04:15:54,205 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 04:15:54,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 04:15:54,205 INFO L85 PathProgramCache]: Analyzing trace with hash 1218319566, now seen corresponding path program 1 times [2022-02-24 04:15:54,206 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 04:15:54,206 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1564978622] [2022-02-24 04:15:54,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 04:15:54,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms