/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_clnt_4.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-d966a43 [2022-01-31 21:59:13,975 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-31 21:59:13,977 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-31 21:59:14,040 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-01-31 21:59:14,047 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-31 21:59:14,050 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-31 21:59:14,051 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-31 21:59:14,055 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-31 21:59:14,055 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-31 21:59:14,060 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-31 21:59:14,064 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-31 21:59:14,065 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-31 21:59:14,066 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-31 21:59:14,069 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-31 21:59:14,069 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-31 21:59:14,070 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-31 21:59:14,071 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-31 21:59:14,075 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-31 21:59:14,076 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-31 21:59:14,076 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-31 21:59:14,082 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationJordan_32.epf [2022-01-31 21:59:14,095 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-31 21:59:14,095 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-31 21:59:14,096 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-31 21:59:14,096 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-31 21:59:14,096 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-31 21:59:14,096 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-31 21:59:14,096 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-31 21:59:14,096 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-31 21:59:14,096 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-31 21:59:14,096 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-31 21:59:14,097 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-31 21:59:14,097 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-31 21:59:14,097 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-31 21:59:14,097 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-31 21:59:14,097 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-31 21:59:14,098 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-31 21:59:14,098 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-31 21:59:14,098 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-31 21:59:14,098 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-31 21:59:14,098 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-31 21:59:14,098 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2022-01-31 21:59:14,098 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-31 21:59:14,098 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=JORDAN [2022-01-31 21:59:14,098 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-31 21:59:14,266 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-31 21:59:14,295 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-31 21:59:14,297 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-31 21:59:14,298 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-31 21:59:14,298 INFO L275 PluginConnector]: CDTParser initialized [2022-01-31 21:59:14,299 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl-simplified/s3_clnt_4.cil-2.c [2022-01-31 21:59:14,347 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/12d11880a/da888a490aca4f128604ee040db68f0b/FLAG4b50c9990 [2022-01-31 21:59:14,729 INFO L306 CDTParser]: Found 1 translation units. [2022-01-31 21:59:14,730 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl-simplified/s3_clnt_4.cil-2.c [2022-01-31 21:59:14,736 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/12d11880a/da888a490aca4f128604ee040db68f0b/FLAG4b50c9990 [2022-01-31 21:59:15,143 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/12d11880a/da888a490aca4f128604ee040db68f0b [2022-01-31 21:59:15,144 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-31 21:59:15,145 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-01-31 21:59:15,146 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-31 21:59:15,146 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-31 21:59:15,148 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-31 21:59:15,149 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 09:59:15" (1/1) ... [2022-01-31 21:59:15,150 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b58be0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 09:59:15, skipping insertion in model container [2022-01-31 21:59:15,150 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 09:59:15" (1/1) ... [2022-01-31 21:59:15,155 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-31 21:59:15,212 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-31 21:59:15,427 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_clnt_4.cil-2.c[35909,35922] [2022-01-31 21:59:15,439 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-31 21:59:15,444 INFO L203 MainTranslator]: Completed pre-run [2022-01-31 21:59:15,500 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_clnt_4.cil-2.c[35909,35922] [2022-01-31 21:59:15,503 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-31 21:59:15,512 INFO L208 MainTranslator]: Completed translation [2022-01-31 21:59:15,513 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 09:59:15 WrapperNode [2022-01-31 21:59:15,513 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-31 21:59:15,514 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-31 21:59:15,514 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-31 21:59:15,514 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-31 21:59:15,522 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 09:59:15" (1/1) ... [2022-01-31 21:59:15,522 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 09:59:15" (1/1) ... [2022-01-31 21:59:15,540 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 09:59:15" (1/1) ... [2022-01-31 21:59:15,541 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 09:59:15" (1/1) ... [2022-01-31 21:59:15,548 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 09:59:15" (1/1) ... [2022-01-31 21:59:15,561 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 09:59:15" (1/1) ... [2022-01-31 21:59:15,562 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 09:59:15" (1/1) ... [2022-01-31 21:59:15,564 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-31 21:59:15,565 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-31 21:59:15,565 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-31 21:59:15,565 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-31 21:59:15,573 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 09:59:15" (1/1) ... [2022-01-31 21:59:15,578 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-31 21:59:15,591 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 21:59:15,600 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-31 21:59:15,609 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-31 21:59:15,628 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-01-31 21:59:15,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-31 21:59:15,629 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-01-31 21:59:15,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_connect [2022-01-31 21:59:15,629 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-01-31 21:59:15,629 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-01-31 21:59:15,629 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-01-31 21:59:15,630 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-01-31 21:59:15,630 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-31 21:59:15,630 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-01-31 21:59:15,630 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-01-31 21:59:15,630 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-01-31 21:59:15,631 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_connect [2022-01-31 21:59:15,631 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-01-31 21:59:15,631 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-01-31 21:59:15,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-31 21:59:15,633 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-31 21:59:15,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-31 21:59:15,633 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-31 21:59:15,633 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-31 21:59:15,740 INFO L234 CfgBuilder]: Building ICFG [2022-01-31 21:59:15,741 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-31 21:59:15,806 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-01-31 21:59:16,017 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2022-01-31 21:59:16,017 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2022-01-31 21:59:16,025 INFO L275 CfgBuilder]: Performing block encoding [2022-01-31 21:59:16,030 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-31 21:59:16,030 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-31 21:59:16,031 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 09:59:16 BoogieIcfgContainer [2022-01-31 21:59:16,032 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-31 21:59:16,033 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-31 21:59:16,033 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-31 21:59:16,039 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-31 21:59:16,039 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.01 09:59:15" (1/3) ... [2022-01-31 21:59:16,040 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79b9cd4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 09:59:16, skipping insertion in model container [2022-01-31 21:59:16,040 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 09:59:15" (2/3) ... [2022-01-31 21:59:16,040 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79b9cd4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 09:59:16, skipping insertion in model container [2022-01-31 21:59:16,040 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 09:59:16" (3/3) ... [2022-01-31 21:59:16,041 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_clnt_4.cil-2.c [2022-01-31 21:59:16,044 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-01-31 21:59:16,044 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-31 21:59:16,077 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-31 21:59:16,081 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=AcceleratedInterpolation, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=JORDAN [2022-01-31 21:59:16,082 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-31 21:59:16,092 INFO L276 IsEmpty]: Start isEmpty. Operand has 137 states, 129 states have (on average 1.697674418604651) internal successors, (219), 130 states have internal predecessors, (219), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-01-31 21:59:16,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-01-31 21:59:16,098 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 21:59:16,098 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] [2022-01-31 21:59:16,098 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 21:59:16,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 21:59:16,102 INFO L85 PathProgramCache]: Analyzing trace with hash -53499867, now seen corresponding path program 1 times [2022-01-31 21:59:16,107 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 21:59:16,107 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [382871134] [2022-01-31 21:59:16,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 21:59:16,116 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 21:59:16,154 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 21:59:16,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 21:59:16,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 21:59:16,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 21:59:16,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 21:59:16,368 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 21:59:16,368 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [382871134] [2022-01-31 21:59:16,369 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [382871134] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 21:59:16,370 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 21:59:16,370 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 21:59:16,370 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624164681] [2022-01-31 21:59:16,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 21:59:16,374 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 21:59:16,375 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 21:59:16,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 21:59:16,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 21:59:16,400 INFO L87 Difference]: Start difference. First operand has 137 states, 129 states have (on average 1.697674418604651) internal successors, (219), 130 states have internal predecessors, (219), 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 6.5) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 21:59:16,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 21:59:16,772 INFO L93 Difference]: Finished difference Result 376 states and 631 transitions. [2022-01-31 21:59:16,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 21:59:16,774 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 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 30 [2022-01-31 21:59:16,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 21:59:16,781 INFO L225 Difference]: With dead ends: 376 [2022-01-31 21:59:16,781 INFO L226 Difference]: Without dead ends: 219 [2022-01-31 21:59:16,783 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-31 21:59:16,786 INFO L933 BasicCegarLoop]: 215 mSDtfsCounter, 578 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 215 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 580 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-31 21:59:16,786 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [580 Valid, 224 Invalid, 223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 215 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-31 21:59:16,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2022-01-31 21:59:16,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 219. [2022-01-31 21:59:16,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 214 states have (on average 1.4906542056074767) internal successors, (319), 214 states have internal predecessors, (319), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 21:59:16,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 323 transitions. [2022-01-31 21:59:16,886 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 323 transitions. Word has length 30 [2022-01-31 21:59:16,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 21:59:16,886 INFO L470 AbstractCegarLoop]: Abstraction has 219 states and 323 transitions. [2022-01-31 21:59:16,886 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 21:59:16,886 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 323 transitions. [2022-01-31 21:59:16,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-01-31 21:59:16,891 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 21:59:16,891 INFO L514 BasicCegarLoop]: trace histogram [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] [2022-01-31 21:59:16,891 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-31 21:59:16,891 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 21:59:16,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 21:59:16,892 INFO L85 PathProgramCache]: Analyzing trace with hash -67654802, now seen corresponding path program 1 times [2022-01-31 21:59:16,892 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 21:59:16,892 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2016800262] [2022-01-31 21:59:16,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 21:59:17,201 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 7 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=5, 2=1}, 1={1=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-01-31 21:59:17,202 INFO L236 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2022-01-31 21:59:17,202 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 21:59:17,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 21:59:17,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 21:59:17,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 21:59:17,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 21:59:17,402 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 21:59:17,402 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2016800262] [2022-01-31 21:59:17,403 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [2016800262] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 21:59:17,403 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 21:59:17,403 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-31 21:59:17,403 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446860778] [2022-01-31 21:59:17,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 21:59:17,404 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-31 21:59:17,404 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 21:59:17,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-31 21:59:17,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2022-01-31 21:59:17,405 INFO L87 Difference]: Start difference. First operand 219 states and 323 transitions. Second operand has 11 states, 10 states have (on average 4.0) internal successors, (40), 9 states have internal predecessors, (40), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 21:59:17,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 21:59:17,948 INFO L93 Difference]: Finished difference Result 545 states and 827 transitions. [2022-01-31 21:59:17,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-31 21:59:17,948 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 4.0) internal successors, (40), 9 states have internal predecessors, (40), 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 44 [2022-01-31 21:59:17,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 21:59:17,950 INFO L225 Difference]: With dead ends: 545 [2022-01-31 21:59:17,950 INFO L226 Difference]: Without dead ends: 287 [2022-01-31 21:59:17,951 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=108, Invalid=234, Unknown=0, NotChecked=0, Total=342 [2022-01-31 21:59:17,952 INFO L933 BasicCegarLoop]: 171 mSDtfsCounter, 620 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 675 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 620 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 738 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 675 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-31 21:59:17,952 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [620 Valid, 193 Invalid, 738 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 675 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-31 21:59:17,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2022-01-31 21:59:17,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 242. [2022-01-31 21:59:17,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242 states, 237 states have (on average 1.4852320675105486) internal successors, (352), 237 states have internal predecessors, (352), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 21:59:17,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 356 transitions. [2022-01-31 21:59:17,975 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 356 transitions. Word has length 44 [2022-01-31 21:59:17,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 21:59:17,975 INFO L470 AbstractCegarLoop]: Abstraction has 242 states and 356 transitions. [2022-01-31 21:59:17,975 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 4.0) internal successors, (40), 9 states have internal predecessors, (40), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 21:59:17,975 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 356 transitions. [2022-01-31 21:59:17,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-01-31 21:59:17,977 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 21:59:17,977 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 21:59:17,977 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-31 21:59:17,977 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 21:59:17,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 21:59:17,978 INFO L85 PathProgramCache]: Analyzing trace with hash -1635666660, now seen corresponding path program 1 times [2022-01-31 21:59:17,978 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 21:59:17,978 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [55382036] [2022-01-31 21:59:17,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY