/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-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-d966a43 [2022-01-31 22:11:42,809 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-31 22:11:42,810 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-31 22:11:42,861 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-01-31 22:11:42,866 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-31 22:11:42,867 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-31 22:11:42,868 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-31 22:11:42,868 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-31 22:11:42,869 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-31 22:11:42,869 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-31 22:11:42,870 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-31 22:11:42,871 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-31 22:11:42,872 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-31 22:11:42,873 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-31 22:11:42,873 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-31 22:11:42,874 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-31 22:11:42,875 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-31 22:11:42,880 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-31 22:11:42,881 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-31 22:11:42,881 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-31 22:11:42,882 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationJordan_32.epf [2022-01-31 22:11:42,887 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-31 22:11:42,887 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-31 22:11:42,888 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-31 22:11:42,888 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-31 22:11:42,888 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-31 22:11:42,888 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-31 22:11:42,888 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-31 22:11:42,888 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-31 22:11:42,889 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-31 22:11:42,889 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-31 22:11:42,889 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-31 22:11:42,889 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-31 22:11:42,889 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-31 22:11:42,889 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-31 22:11:42,889 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-31 22:11:42,889 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-31 22:11:42,889 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-31 22:11:42,889 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-31 22:11:42,889 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-31 22:11:42,890 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-31 22:11:42,890 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2022-01-31 22:11:42,890 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-31 22:11:42,890 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=JORDAN [2022-01-31 22:11:42,890 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-31 22:11:43,061 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-31 22:11:43,081 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-31 22:11:43,084 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-31 22:11:43,085 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-31 22:11:43,085 INFO L275 PluginConnector]: CDTParser initialized [2022-01-31 22:11:43,086 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl-simplified/s3_srvr_6.cil-1.c [2022-01-31 22:11:43,133 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2697096a5/138188819b914082924d631db11addbc/FLAGd7c92e171 [2022-01-31 22:11:43,516 INFO L306 CDTParser]: Found 1 translation units. [2022-01-31 22:11:43,517 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl-simplified/s3_srvr_6.cil-1.c [2022-01-31 22:11:43,526 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2697096a5/138188819b914082924d631db11addbc/FLAGd7c92e171 [2022-01-31 22:11:43,534 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2697096a5/138188819b914082924d631db11addbc [2022-01-31 22:11:43,537 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-31 22:11:43,538 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-01-31 22:11:43,540 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-31 22:11:43,540 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-31 22:11:43,543 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-31 22:11:43,543 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 10:11:43" (1/1) ... [2022-01-31 22:11:43,544 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2639a707 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:11:43, skipping insertion in model container [2022-01-31 22:11:43,544 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 10:11:43" (1/1) ... [2022-01-31 22:11:43,548 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-31 22:11:43,578 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-31 22:11:43,720 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-1.c[48499,48512] [2022-01-31 22:11:43,727 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-31 22:11:43,732 INFO L203 MainTranslator]: Completed pre-run [2022-01-31 22:11:43,762 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-1.c[48499,48512] [2022-01-31 22:11:43,764 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-31 22:11:43,776 INFO L208 MainTranslator]: Completed translation [2022-01-31 22:11:43,776 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:11:43 WrapperNode [2022-01-31 22:11:43,776 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-31 22:11:43,777 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-31 22:11:43,777 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-31 22:11:43,777 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-31 22:11:43,784 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:11:43" (1/1) ... [2022-01-31 22:11:43,784 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:11:43" (1/1) ... [2022-01-31 22:11:43,790 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:11:43" (1/1) ... [2022-01-31 22:11:43,790 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:11:43" (1/1) ... [2022-01-31 22:11:43,800 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:11:43" (1/1) ... [2022-01-31 22:11:43,809 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:11:43" (1/1) ... [2022-01-31 22:11:43,811 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:11:43" (1/1) ... [2022-01-31 22:11:43,813 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-31 22:11:43,817 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-31 22:11:43,818 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-31 22:11:43,818 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-31 22:11:43,818 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:11:43" (1/1) ... [2022-01-31 22:11:43,823 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-31 22:11:43,831 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 22:11:43,840 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-31 22:11:43,852 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-31 22:11:43,862 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-01-31 22:11:43,863 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-31 22:11:43,863 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-01-31 22:11:43,863 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-01-31 22:11:43,863 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-01-31 22:11:43,863 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-01-31 22:11:43,864 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-01-31 22:11:43,864 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-01-31 22:11:43,864 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-31 22:11:43,864 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-01-31 22:11:43,864 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-01-31 22:11:43,865 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-01-31 22:11:43,865 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-01-31 22:11:43,865 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-01-31 22:11:43,865 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-01-31 22:11:43,867 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-31 22:11:43,867 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-31 22:11:43,867 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-31 22:11:43,867 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-31 22:11:43,867 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-31 22:11:43,941 INFO L234 CfgBuilder]: Building ICFG [2022-01-31 22:11:43,942 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-31 22:11:44,015 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-01-31 22:11:44,360 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##93: assume !false; [2022-01-31 22:11:44,360 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##92: assume false; [2022-01-31 22:11:44,364 INFO L275 CfgBuilder]: Performing block encoding [2022-01-31 22:11:44,369 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-31 22:11:44,369 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-31 22:11:44,370 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 10:11:44 BoogieIcfgContainer [2022-01-31 22:11:44,371 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-31 22:11:44,372 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-31 22:11:44,372 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-31 22:11:44,374 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-31 22:11:44,374 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.01 10:11:43" (1/3) ... [2022-01-31 22:11:44,375 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5866dfaa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 10:11:44, skipping insertion in model container [2022-01-31 22:11:44,375 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:11:43" (2/3) ... [2022-01-31 22:11:44,375 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5866dfaa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 10:11:44, skipping insertion in model container [2022-01-31 22:11:44,375 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 10:11:44" (3/3) ... [2022-01-31 22:11:44,376 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr_6.cil-1.c [2022-01-31 22:11:44,379 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-01-31 22:11:44,379 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-31 22:11:44,411 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-31 22:11:44,415 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=AcceleratedInterpolation, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=JORDAN [2022-01-31 22:11:44,415 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-31 22:11:44,432 INFO L276 IsEmpty]: Start isEmpty. Operand has 168 states, 160 states have (on average 1.74375) internal successors, (279), 161 states have internal predecessors, (279), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-01-31 22:11:44,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-01-31 22:11:44,438 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:11:44,438 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:11:44,438 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:11:44,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:11:44,442 INFO L85 PathProgramCache]: Analyzing trace with hash 924440587, now seen corresponding path program 1 times [2022-01-31 22:11:44,447 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:11:44,447 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [205960463] [2022-01-31 22:11:44,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:11:44,455 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:11:44,484 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:11:44,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:11:44,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:11:44,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:11:44,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 22:11:44,599 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:11:44,599 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [205960463] [2022-01-31 22:11:44,600 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [205960463] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:11:44,600 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:11:44,600 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 22:11:44,601 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732453802] [2022-01-31 22:11:44,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:11:44,604 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 22:11:44,604 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:11:44,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 22:11:44,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 22:11:44,631 INFO L87 Difference]: Start difference. First operand has 168 states, 160 states have (on average 1.74375) internal successors, (279), 161 states have internal predecessors, (279), 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 2.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:11:45,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:11:45,022 INFO L93 Difference]: Finished difference Result 473 states and 816 transitions. [2022-01-31 22:11:45,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 22:11:45,024 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 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 12 [2022-01-31 22:11:45,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:11:45,031 INFO L225 Difference]: With dead ends: 473 [2022-01-31 22:11:45,031 INFO L226 Difference]: Without dead ends: 293 [2022-01-31 22:11:45,034 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-31 22:11:45,036 INFO L933 BasicCegarLoop]: 533 mSDtfsCounter, 528 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 278 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 529 SdHoareTripleChecker+Valid, 542 SdHoareTripleChecker+Invalid, 289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 278 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-31 22:11:45,036 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [529 Valid, 542 Invalid, 289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 278 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-31 22:11:45,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2022-01-31 22:11:45,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 291. [2022-01-31 22:11:45,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 291 states, 286 states have (on average 1.5874125874125875) internal successors, (454), 286 states have internal predecessors, (454), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:11:45,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 291 states and 458 transitions. [2022-01-31 22:11:45,081 INFO L78 Accepts]: Start accepts. Automaton has 291 states and 458 transitions. Word has length 12 [2022-01-31 22:11:45,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:11:45,082 INFO L470 AbstractCegarLoop]: Abstraction has 291 states and 458 transitions. [2022-01-31 22:11:45,082 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 22:11:45,082 INFO L276 IsEmpty]: Start isEmpty. Operand 291 states and 458 transitions. [2022-01-31 22:11:45,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-01-31 22:11:45,082 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:11:45,082 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:11:45,083 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-31 22:11:45,083 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:11:45,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:11:45,083 INFO L85 PathProgramCache]: Analyzing trace with hash 924438665, now seen corresponding path program 1 times [2022-01-31 22:11:45,083 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:11:45,084 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [903583419] [2022-01-31 22:11:45,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:11:45,084 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:11:45,086 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:11:45,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-31 22:11:45,107 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-01-31 22:11:45,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-31 22:11:45,136 INFO L133 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2022-01-31 22:11:45,136 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-01-31 22:11:45,137 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-01-31 22:11:45,139 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-31 22:11:45,141 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2022-01-31 22:11:45,142 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-01-31 22:11:45,151 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.01 10:11:45 BoogieIcfgContainer [2022-01-31 22:11:45,151 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-31 22:11:45,152 INFO L158 Benchmark]: Toolchain (without parser) took 1613.19ms. Allocated memory is still 186.6MB. Free memory was 136.7MB in the beginning and 60.9MB in the end (delta: 75.8MB). Peak memory consumption was 74.2MB. Max. memory is 8.0GB. [2022-01-31 22:11:45,152 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 186.6MB. Free memory is still 154.0MB. There was no memory consumed. Max. memory is 8.0GB. [2022-01-31 22:11:45,152 INFO L158 Benchmark]: CACSL2BoogieTranslator took 236.49ms. Allocated memory is still 186.6MB. Free memory was 136.4MB in the beginning and 158.4MB in the end (delta: -22.0MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-01-31 22:11:45,153 INFO L158 Benchmark]: Boogie Preprocessor took 35.93ms. Allocated memory is still 186.6MB. Free memory was 158.4MB in the beginning and 156.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-01-31 22:11:45,153 INFO L158 Benchmark]: RCFGBuilder took 553.16ms. Allocated memory is still 186.6MB. Free memory was 155.8MB in the beginning and 125.9MB in the end (delta: 29.9MB). Peak memory consumption was 29.4MB. Max. memory is 8.0GB. [2022-01-31 22:11:45,153 INFO L158 Benchmark]: TraceAbstraction took 779.55ms. Allocated memory is still 186.6MB. Free memory was 125.4MB in the beginning and 60.9MB in the end (delta: 64.5MB). Peak memory consumption was 64.0MB. Max. memory is 8.0GB. [2022-01-31 22:11:45,155 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 186.6MB. Free memory is still 154.0MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 236.49ms. Allocated memory is still 186.6MB. Free memory was 136.4MB in the beginning and 158.4MB in the end (delta: -22.0MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * Boogie Preprocessor took 35.93ms. Allocated memory is still 186.6MB. Free memory was 158.4MB in the beginning and 156.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 553.16ms. Allocated memory is still 186.6MB. Free memory was 155.8MB in the beginning and 125.9MB in the end (delta: 29.9MB). Peak memory consumption was 29.4MB. Max. memory is 8.0GB. * TraceAbstraction took 779.55ms. Allocated memory is still 186.6MB. Free memory was 125.4MB in the beginning and 60.9MB in the end (delta: 64.5MB). Peak memory consumption was 64.0MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 682]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L687] int s ; [L688] int tmp ; [L692] s = 8464 [L693] CALL ssl3_accept(s) [L23] int s__info_callback = __VERIFIER_nondet_int() ; [L24] int s__in_handshake = __VERIFIER_nondet_int() ; [L25] int s__state ; [L26] int s__new_session ; [L27] int s__server ; [L28] int s__version = __VERIFIER_nondet_int() ; [L29] int s__type ; [L30] int s__init_num ; [L31] int s__hit = __VERIFIER_nondet_int() ; [L32] int s__rwstate ; [L33] int s__init_buf___0 = 1; [L34] int s__debug = __VERIFIER_nondet_int() ; [L35] int s__shutdown ; [L36] int s__cert = __VERIFIER_nondet_int() ; [L37] int s__options = __VERIFIER_nondet_int() ; [L38] int s__verify_mode = __VERIFIER_nondet_int() ; [L39] int s__session__peer = __VERIFIER_nondet_int() ; [L40] int s__cert__pkeys__AT0__privatekey = __VERIFIER_nondet_int() ; [L41] int s__ctx__info_callback = __VERIFIER_nondet_int() ; [L42] int s__ctx__stats__sess_accept_renegotiate = __VERIFIER_nondet_int() ; [L43] int s__ctx__stats__sess_accept = __VERIFIER_nondet_int() ; [L44] int s__ctx__stats__sess_accept_good = __VERIFIER_nondet_int() ; [L45] int s__s3__tmp__cert_request ; [L46] int s__s3__tmp__reuse_message = __VERIFIER_nondet_int() ; [L47] int s__s3__tmp__use_rsa_tmp ; [L48] int s__s3__tmp__new_cipher = __VERIFIER_nondet_int() ; [L49] int s__s3__tmp__new_cipher__algorithms = __VERIFIER_nondet_int() ; [L50] int s__s3__tmp__next_state___0 ; [L51] int s__s3__tmp__new_cipher__algo_strength = __VERIFIER_nondet_int() ; [L52] int s__session__cipher ; [L53] int buf ; [L54] unsigned long l ; [L55] unsigned long Time ; [L56] unsigned long tmp ; [L57] int cb ; [L58] long num1 = __VERIFIER_nondet_long() ; [L59] int ret ; [L60] int new_state ; [L61] int state ; [L62] int skip ; [L63] int got_new_session ; [L64] int tmp___1 = __VERIFIER_nondet_int() ; [L65] int tmp___2 = __VERIFIER_nondet_int() ; [L66] int tmp___3 = __VERIFIER_nondet_int() ; [L67] int tmp___4 = __VERIFIER_nondet_int() ; [L68] int tmp___5 = __VERIFIER_nondet_int() ; [L69] int tmp___6 = __VERIFIER_nondet_int() ; [L70] int tmp___7 ; [L71] long tmp___8 = __VERIFIER_nondet_long() ; [L72] int tmp___9 = __VERIFIER_nondet_int() ; [L73] int tmp___10 = __VERIFIER_nondet_int() ; [L74] int blastFlag ; [L75] int __cil_tmp55 ; [L76] unsigned long __cil_tmp56 ; [L77] unsigned long __cil_tmp57 ; [L78] unsigned long __cil_tmp58 ; [L79] unsigned long __cil_tmp59 ; [L80] int __cil_tmp60 ; [L81] unsigned long __cil_tmp61 ; [L85] s__state = initial_state [L86] blastFlag = 0 [L87] tmp = __VERIFIER_nondet_int() [L88] Time = tmp [L89] cb = 0 [L90] ret = -1 [L91] skip = 0 [L92] got_new_session = 0 [L93] COND FALSE !(s__info_callback != 0) [L96] COND TRUE s__ctx__info_callback != 0 [L97] cb = s__ctx__info_callback [L99] COND TRUE cb != 0 [L682] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 171 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 529 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 528 mSDsluCounter, 542 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 9 mSDsCounter, 11 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 278 IncrementalHoareTripleChecker+Invalid, 289 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 11 mSolverCounterUnsat, 533 mSDtfsCounter, 278 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=291occurred in iteration=1, InterpolantAutomatonStates: 4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-01-31 22:11:45,192 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...