/usr/bin/java -ea -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_4.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-e106359-m [2022-04-15 11:16:51,411 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-15 11:16:51,413 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-15 11:16:51,452 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-15 11:16:51,452 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-15 11:16:51,453 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-15 11:16:51,456 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-15 11:16:51,461 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-15 11:16:51,463 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-15 11:16:51,467 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-15 11:16:51,468 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-15 11:16:51,469 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-15 11:16:51,469 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-15 11:16:51,471 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-15 11:16:51,472 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-15 11:16:51,475 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-15 11:16:51,476 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-15 11:16:51,476 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-15 11:16:51,478 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-15 11:16:51,483 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-15 11:16:51,485 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-15 11:16:51,485 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-15 11:16:51,486 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-15 11:16:51,487 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-15 11:16:51,488 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-15 11:16:51,494 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-04-15 11:16:51,501 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-15 11:16:51,501 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-15 11:16:51,503 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-15 11:16:51,503 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationJordan_32.epf [2022-04-15 11:16:51,514 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-15 11:16:51,514 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-15 11:16:51,515 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-15 11:16:51,515 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-15 11:16:51,516 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-15 11:16:51,516 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-15 11:16:51,516 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-15 11:16:51,516 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-15 11:16:51,516 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-15 11:16:51,517 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-15 11:16:51,517 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-15 11:16:51,517 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-15 11:16:51,517 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-15 11:16:51,518 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-15 11:16:51,518 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-15 11:16:51,518 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-15 11:16:51,518 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-04-15 11:16:51,518 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-15 11:16:51,518 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-15 11:16:51,518 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-15 11:16:51,518 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2022-04-15 11:16:51,519 INFO L138 SettingsManager]: * Trace refinement strategy=ACCELERATED_INTERPOLATION [2022-04-15 11:16:51,519 INFO L138 SettingsManager]: * Trace refinement strategy used in Accelerated Interpolation=CAMEL [2022-04-15 11:16:51,519 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-15 11:16:51,519 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=JORDAN [2022-04-15 11:16:51,519 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-04-15 11:16:51,744 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-15 11:16:51,766 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-15 11:16:51,768 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-15 11:16:51,769 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-15 11:16:51,770 INFO L275 PluginConnector]: CDTParser initialized [2022-04-15 11:16:51,771 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl-simplified/s3_srvr_4.cil.c [2022-04-15 11:16:51,826 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/585a9183f/8a9503c93c87415d833b2f18400f4213/FLAG6f39b3939 [2022-04-15 11:16:52,216 INFO L306 CDTParser]: Found 1 translation units. [2022-04-15 11:16:52,216 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl-simplified/s3_srvr_4.cil.c [2022-04-15 11:16:52,235 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/585a9183f/8a9503c93c87415d833b2f18400f4213/FLAG6f39b3939 [2022-04-15 11:16:52,251 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/585a9183f/8a9503c93c87415d833b2f18400f4213 [2022-04-15 11:16:52,253 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-15 11:16:52,255 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-04-15 11:16:52,258 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-15 11:16:52,258 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-15 11:16:52,261 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-15 11:16:52,262 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.04 11:16:52" (1/1) ... [2022-04-15 11:16:52,263 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4fcad148 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 11:16:52, skipping insertion in model container [2022-04-15 11:16:52,263 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.04 11:16:52" (1/1) ... [2022-04-15 11:16:52,269 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-15 11:16:52,303 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-15 11:16:52,575 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_4.cil.c[42875,42888] [2022-04-15 11:16:52,589 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-15 11:16:52,598 INFO L203 MainTranslator]: Completed pre-run [2022-04-15 11:16:52,659 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_4.cil.c[42875,42888] [2022-04-15 11:16:52,663 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-15 11:16:52,677 INFO L208 MainTranslator]: Completed translation [2022-04-15 11:16:52,678 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 11:16:52 WrapperNode [2022-04-15 11:16:52,678 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-15 11:16:52,679 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-15 11:16:52,680 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-15 11:16:52,680 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-15 11:16:52,690 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 11:16:52" (1/1) ... [2022-04-15 11:16:52,690 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 11:16:52" (1/1) ... [2022-04-15 11:16:52,699 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 11:16:52" (1/1) ... [2022-04-15 11:16:52,699 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 11:16:52" (1/1) ... [2022-04-15 11:16:52,714 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 11:16:52" (1/1) ... [2022-04-15 11:16:52,728 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 11:16:52" (1/1) ... [2022-04-15 11:16:52,730 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 11:16:52" (1/1) ... [2022-04-15 11:16:52,733 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-15 11:16:52,734 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-15 11:16:52,734 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-15 11:16:52,734 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-15 11:16:52,750 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 11:16:52" (1/1) ... [2022-04-15 11:16:52,758 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-15 11:16:52,768 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-15 11:16:52,786 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) [2022-04-15 11:16:52,806 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 [2022-04-15 11:16:52,837 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-04-15 11:16:52,838 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-15 11:16:52,838 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-04-15 11:16:52,838 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-04-15 11:16:52,838 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-04-15 11:16:52,839 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-04-15 11:16:52,839 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-04-15 11:16:52,839 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-04-15 11:16:52,840 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-15 11:16:52,840 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-04-15 11:16:52,840 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-04-15 11:16:52,841 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-04-15 11:16:52,841 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-04-15 11:16:52,841 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-04-15 11:16:52,842 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-04-15 11:16:52,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-15 11:16:52,842 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-15 11:16:52,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-15 11:16:52,842 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-15 11:16:52,842 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-15 11:16:52,959 INFO L234 CfgBuilder]: Building ICFG [2022-04-15 11:16:52,963 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-15 11:16:53,053 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-04-15 11:16:53,464 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##90: assume false; [2022-04-15 11:16:53,465 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##91: assume !false; [2022-04-15 11:16:53,471 INFO L275 CfgBuilder]: Performing block encoding [2022-04-15 11:16:53,479 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-15 11:16:53,479 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-04-15 11:16:53,481 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.04 11:16:53 BoogieIcfgContainer [2022-04-15 11:16:53,481 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-15 11:16:53,482 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-15 11:16:53,482 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-15 11:16:53,485 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-15 11:16:53,486 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.04 11:16:52" (1/3) ... [2022-04-15 11:16:53,486 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a97f102 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.04 11:16:53, skipping insertion in model container [2022-04-15 11:16:53,487 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 11:16:52" (2/3) ... [2022-04-15 11:16:53,487 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a97f102 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.04 11:16:53, skipping insertion in model container [2022-04-15 11:16:53,487 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.04 11:16:53" (3/3) ... [2022-04-15 11:16:53,488 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr_4.cil.c [2022-04-15 11:16:53,492 INFO L202 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-04-15 11:16:53,492 INFO L161 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-04-15 11:16:53,525 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-15 11:16:53,530 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=Craig_NestedInterpolation, 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 [2022-04-15 11:16:53,530 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-04-15 11:16:53,549 INFO L276 IsEmpty]: Start isEmpty. Operand has 150 states, 142 states have (on average 1.7112676056338028) internal successors, (243), 143 states have internal predecessors, (243), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-04-15 11:16:53,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-04-15 11:16:53,558 INFO L491 BasicCegarLoop]: Found error trace [2022-04-15 11:16:53,558 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-15 11:16:53,559 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-15 11:16:53,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-15 11:16:53,563 INFO L85 PathProgramCache]: Analyzing trace with hash 1867927467, now seen corresponding path program 1 times [2022-04-15 11:16:53,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-15 11:16:53,569 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [846031500] [2022-04-15 11:16:53,576 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-15 11:16:53,576 INFO L85 PathProgramCache]: Analyzing trace with hash 1867927467, now seen corresponding path program 2 times [2022-04-15 11:16:53,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-15 11:16:53,578 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172359310] [2022-04-15 11:16:53,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-15 11:16:53,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-15 11:16:53,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-15 11:16:53,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-15 11:16:53,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-15 11:16:53,887 INFO L290 TraceCheckUtils]: 0: Hoare triple {159#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} #NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(16, 2);call #Ultimate.allocInit(12, 3); {153#true} is VALID [2022-04-15 11:16:53,888 INFO L290 TraceCheckUtils]: 1: Hoare triple {153#true} assume true; {153#true} is VALID [2022-04-15 11:16:53,888 INFO L284 TraceCheckUtils]: 2: Hoare quadruple {153#true} {153#true} #610#return; {153#true} is VALID [2022-04-15 11:16:53,890 INFO L272 TraceCheckUtils]: 0: Hoare triple {153#true} call ULTIMATE.init(); {159#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} is VALID [2022-04-15 11:16:53,890 INFO L290 TraceCheckUtils]: 1: Hoare triple {159#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} #NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(16, 2);call #Ultimate.allocInit(12, 3); {153#true} is VALID [2022-04-15 11:16:53,890 INFO L290 TraceCheckUtils]: 2: Hoare triple {153#true} assume true; {153#true} is VALID [2022-04-15 11:16:53,891 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {153#true} {153#true} #610#return; {153#true} is VALID [2022-04-15 11:16:53,891 INFO L272 TraceCheckUtils]: 4: Hoare triple {153#true} call #t~ret55 := main(); {153#true} is VALID [2022-04-15 11:16:53,892 INFO L290 TraceCheckUtils]: 5: Hoare triple {153#true} havoc ~s~0;havoc ~tmp~1;~s~0 := 8464; {153#true} is VALID [2022-04-15 11:16:53,893 INFO L272 TraceCheckUtils]: 6: Hoare triple {153#true} call #t~ret54 := ssl3_accept(~s~0); {153#true} is VALID [2022-04-15 11:16:53,898 INFO L290 TraceCheckUtils]: 7: Hoare triple {153#true} ~initial_state := #in~initial_state;assume -2147483648 <= #t~nondet4 && #t~nondet4 <= 2147483647;~s__info_callback~0 := #t~nondet4;havoc #t~nondet4;assume -2147483648 <= #t~nondet5 && #t~nondet5 <= 2147483647;~s__in_handshake~0 := #t~nondet5;havoc #t~nondet5;havoc ~s__state~0;havoc ~s__new_session~0;havoc ~s__server~0;assume -2147483648 <= #t~nondet6 && #t~nondet6 <= 2147483647;~s__version~0 := #t~nondet6;havoc #t~nondet6;havoc ~s__type~0;havoc ~s__init_num~0;assume -2147483648 <= #t~nondet7 && #t~nondet7 <= 2147483647;~s__hit~0 := #t~nondet7;havoc #t~nondet7;havoc ~s__rwstate~0;~s__init_buf___0~0 := 1;assume -2147483648 <= #t~nondet8 && #t~nondet8 <= 2147483647;~s__debug~0 := #t~nondet8;havoc #t~nondet8;havoc ~s__shutdown~0;assume -2147483648 <= #t~nondet9 && #t~nondet9 <= 2147483647;~s__cert~0 := #t~nondet9;havoc #t~nondet9;assume -2147483648 <= #t~nondet10 && #t~nondet10 <= 2147483647;~s__options~0 := #t~nondet10;havoc #t~nondet10;assume -2147483648 <= #t~nondet11 && #t~nondet11 <= 2147483647;~s__verify_mode~0 := #t~nondet11;havoc #t~nondet11;assume -2147483648 <= #t~nondet12 && #t~nondet12 <= 2147483647;~s__session__peer~0 := #t~nondet12;havoc #t~nondet12;assume -2147483648 <= #t~nondet13 && #t~nondet13 <= 2147483647;~s__cert__pkeys__AT0__privatekey~0 := #t~nondet13;havoc #t~nondet13;assume -2147483648 <= #t~nondet14 && #t~nondet14 <= 2147483647;~s__ctx__info_callback~0 := #t~nondet14;havoc #t~nondet14;assume -2147483648 <= #t~nondet15 && #t~nondet15 <= 2147483647;~s__ctx__stats__sess_accept_renegotiate~0 := #t~nondet15;havoc #t~nondet15;assume -2147483648 <= #t~nondet16 && #t~nondet16 <= 2147483647;~s__ctx__stats__sess_accept~0 := #t~nondet16;havoc #t~nondet16;assume -2147483648 <= #t~nondet17 && #t~nondet17 <= 2147483647;~s__ctx__stats__sess_accept_good~0 := #t~nondet17;havoc #t~nondet17;havoc ~s__s3__tmp__cert_request~0;assume -2147483648 <= #t~nondet18 && #t~nondet18 <= 2147483647;~s__s3__tmp__reuse_message~0 := #t~nondet18;havoc #t~nondet18;havoc ~s__s3__tmp__use_rsa_tmp~0;assume -2147483648 <= #t~nondet19 && #t~nondet19 <= 2147483647;~s__s3__tmp__new_cipher~0 := #t~nondet19;havoc #t~nondet19;assume -2147483648 <= #t~nondet20 && #t~nondet20 <= 2147483647;~s__s3__tmp__new_cipher__algorithms~0 := #t~nondet20;havoc #t~nondet20;havoc ~s__s3__tmp__next_state___0~0;assume -2147483648 <= #t~nondet21 && #t~nondet21 <= 2147483647;~s__s3__tmp__new_cipher__algo_strength~0 := #t~nondet21;havoc #t~nondet21;havoc ~s__session__cipher~0;havoc ~buf~0;havoc ~l~0;havoc ~Time~0;havoc ~tmp~0;havoc ~cb~0;assume -2147483648 <= #t~nondet22 && #t~nondet22 <= 2147483647;~num1~0 := #t~nondet22;havoc #t~nondet22;havoc ~ret~0;havoc ~new_state~0;havoc ~state~0;havoc ~skip~0;havoc ~got_new_session~0;assume -2147483648 <= #t~nondet23 && #t~nondet23 <= 2147483647;~tmp___1~0 := #t~nondet23;havoc #t~nondet23;assume -2147483648 <= #t~nondet24 && #t~nondet24 <= 2147483647;~tmp___2~0 := #t~nondet24;havoc #t~nondet24;assume -2147483648 <= #t~nondet25 && #t~nondet25 <= 2147483647;~tmp___3~0 := #t~nondet25;havoc #t~nondet25;assume -2147483648 <= #t~nondet26 && #t~nondet26 <= 2147483647;~tmp___4~0 := #t~nondet26;havoc #t~nondet26;assume -2147483648 <= #t~nondet27 && #t~nondet27 <= 2147483647;~tmp___5~0 := #t~nondet27;havoc #t~nondet27;assume -2147483648 <= #t~nondet28 && #t~nondet28 <= 2147483647;~tmp___6~0 := #t~nondet28;havoc #t~nondet28;havoc ~tmp___7~0;assume -2147483648 <= #t~nondet29 && #t~nondet29 <= 2147483647;~tmp___8~0 := #t~nondet29;havoc #t~nondet29;assume -2147483648 <= #t~nondet30 && #t~nondet30 <= 2147483647;~tmp___9~0 := #t~nondet30;havoc #t~nondet30;assume -2147483648 <= #t~nondet31 && #t~nondet31 <= 2147483647;~tmp___10~0 := #t~nondet31;havoc #t~nondet31;havoc ~blastFlag~0;havoc ~__cil_tmp55~0;havoc ~__cil_tmp56~0;havoc ~__cil_tmp57~0;havoc ~__cil_tmp58~0;havoc ~__cil_tmp59~0;havoc ~__cil_tmp60~0;havoc ~__cil_tmp61~0;~s__state~0 := ~initial_state;~blastFlag~0 := 0;assume -2147483648 <= #t~nondet32 && #t~nondet32 <= 2147483647;~tmp~0 := #t~nondet32;havoc #t~nondet32;~Time~0 := ~tmp~0;~cb~0 := 0;~ret~0 := -1;~skip~0 := 0;~got_new_session~0 := 0; {158#(= ssl3_accept_~blastFlag~0 0)} is VALID [2022-04-15 11:16:53,899 INFO L290 TraceCheckUtils]: 8: Hoare triple {158#(= ssl3_accept_~blastFlag~0 0)} assume 0 != ~s__info_callback~0;~cb~0 := ~s__info_callback~0; {158#(= ssl3_accept_~blastFlag~0 0)} is VALID [2022-04-15 11:16:53,899 INFO L290 TraceCheckUtils]: 9: Hoare triple {158#(= ssl3_accept_~blastFlag~0 0)} #t~post33 := ~s__in_handshake~0;~s__in_handshake~0 := 1 + #t~post33;havoc #t~post33; {158#(= ssl3_accept_~blastFlag~0 0)} is VALID [2022-04-15 11:16:53,900 INFO L290 TraceCheckUtils]: 10: Hoare triple {158#(= ssl3_accept_~blastFlag~0 0)} assume !(0 != 12288 + ~tmp___1~0); {158#(= ssl3_accept_~blastFlag~0 0)} is VALID [2022-04-15 11:16:53,901 INFO L290 TraceCheckUtils]: 11: Hoare triple {158#(= ssl3_accept_~blastFlag~0 0)} assume !(0 == ~s__cert~0); {158#(= ssl3_accept_~blastFlag~0 0)} is VALID [2022-04-15 11:16:53,902 INFO L290 TraceCheckUtils]: 12: Hoare triple {158#(= ssl3_accept_~blastFlag~0 0)} assume !false; {158#(= ssl3_accept_~blastFlag~0 0)} is VALID [2022-04-15 11:16:53,903 INFO L290 TraceCheckUtils]: 13: Hoare triple {158#(= ssl3_accept_~blastFlag~0 0)} ~state~0 := ~s__state~0; {158#(= ssl3_accept_~blastFlag~0 0)} is VALID [2022-04-15 11:16:53,903 INFO L290 TraceCheckUtils]: 14: Hoare triple {158#(= ssl3_accept_~blastFlag~0 0)} assume !(12292 == ~s__state~0); {158#(= ssl3_accept_~blastFlag~0 0)} is VALID [2022-04-15 11:16:53,904 INFO L290 TraceCheckUtils]: 15: Hoare triple {158#(= ssl3_accept_~blastFlag~0 0)} assume !(16384 == ~s__state~0); {158#(= ssl3_accept_~blastFlag~0 0)} is VALID [2022-04-15 11:16:53,905 INFO L290 TraceCheckUtils]: 16: Hoare triple {158#(= ssl3_accept_~blastFlag~0 0)} assume !(8192 == ~s__state~0); {158#(= ssl3_accept_~blastFlag~0 0)} is VALID [2022-04-15 11:16:53,906 INFO L290 TraceCheckUtils]: 17: Hoare triple {158#(= ssl3_accept_~blastFlag~0 0)} assume !(24576 == ~s__state~0); {158#(= ssl3_accept_~blastFlag~0 0)} is VALID [2022-04-15 11:16:53,907 INFO L290 TraceCheckUtils]: 18: Hoare triple {158#(= ssl3_accept_~blastFlag~0 0)} assume !(8195 == ~s__state~0); {158#(= ssl3_accept_~blastFlag~0 0)} is VALID [2022-04-15 11:16:53,908 INFO L290 TraceCheckUtils]: 19: Hoare triple {158#(= ssl3_accept_~blastFlag~0 0)} assume !(8480 == ~s__state~0); {158#(= ssl3_accept_~blastFlag~0 0)} is VALID [2022-04-15 11:16:53,908 INFO L290 TraceCheckUtils]: 20: Hoare triple {158#(= ssl3_accept_~blastFlag~0 0)} assume !(8481 == ~s__state~0); {158#(= ssl3_accept_~blastFlag~0 0)} is VALID [2022-04-15 11:16:53,908 INFO L290 TraceCheckUtils]: 21: Hoare triple {158#(= ssl3_accept_~blastFlag~0 0)} assume !(8482 == ~s__state~0); {158#(= ssl3_accept_~blastFlag~0 0)} is VALID [2022-04-15 11:16:53,909 INFO L290 TraceCheckUtils]: 22: Hoare triple {158#(= ssl3_accept_~blastFlag~0 0)} assume !(8464 == ~s__state~0); {158#(= ssl3_accept_~blastFlag~0 0)} is VALID [2022-04-15 11:16:53,909 INFO L290 TraceCheckUtils]: 23: Hoare triple {158#(= ssl3_accept_~blastFlag~0 0)} assume !(8465 == ~s__state~0); {158#(= ssl3_accept_~blastFlag~0 0)} is VALID [2022-04-15 11:16:53,910 INFO L290 TraceCheckUtils]: 24: Hoare triple {158#(= ssl3_accept_~blastFlag~0 0)} assume !(8466 == ~s__state~0); {158#(= ssl3_accept_~blastFlag~0 0)} is VALID [2022-04-15 11:16:53,910 INFO L290 TraceCheckUtils]: 25: Hoare triple {158#(= ssl3_accept_~blastFlag~0 0)} assume !(8496 == ~s__state~0); {158#(= ssl3_accept_~blastFlag~0 0)} is VALID [2022-04-15 11:16:53,913 INFO L290 TraceCheckUtils]: 26: Hoare triple {158#(= ssl3_accept_~blastFlag~0 0)} assume !(8497 == ~s__state~0); {158#(= ssl3_accept_~blastFlag~0 0)} is VALID [2022-04-15 11:16:53,913 INFO L290 TraceCheckUtils]: 27: Hoare triple {158#(= ssl3_accept_~blastFlag~0 0)} assume !(8512 == ~s__state~0); {158#(= ssl3_accept_~blastFlag~0 0)} is VALID [2022-04-15 11:16:53,914 INFO L290 TraceCheckUtils]: 28: Hoare triple {158#(= ssl3_accept_~blastFlag~0 0)} assume !(8513 == ~s__state~0); {158#(= ssl3_accept_~blastFlag~0 0)} is VALID [2022-04-15 11:16:53,914 INFO L290 TraceCheckUtils]: 29: Hoare triple {158#(= ssl3_accept_~blastFlag~0 0)} assume !(8528 == ~s__state~0); {158#(= ssl3_accept_~blastFlag~0 0)} is VALID [2022-04-15 11:16:53,915 INFO L290 TraceCheckUtils]: 30: Hoare triple {158#(= ssl3_accept_~blastFlag~0 0)} assume !(8529 == ~s__state~0); {158#(= ssl3_accept_~blastFlag~0 0)} is VALID [2022-04-15 11:16:53,915 INFO L290 TraceCheckUtils]: 31: Hoare triple {158#(= ssl3_accept_~blastFlag~0 0)} assume !(8544 == ~s__state~0); {158#(= ssl3_accept_~blastFlag~0 0)} is VALID [2022-04-15 11:16:53,916 INFO L290 TraceCheckUtils]: 32: Hoare triple {158#(= ssl3_accept_~blastFlag~0 0)} assume !(8545 == ~s__state~0); {158#(= ssl3_accept_~blastFlag~0 0)} is VALID [2022-04-15 11:16:53,916 INFO L290 TraceCheckUtils]: 33: Hoare triple {158#(= ssl3_accept_~blastFlag~0 0)} assume !(8560 == ~s__state~0); {158#(= ssl3_accept_~blastFlag~0 0)} is VALID [2022-04-15 11:16:53,917 INFO L290 TraceCheckUtils]: 34: Hoare triple {158#(= ssl3_accept_~blastFlag~0 0)} assume !(8561 == ~s__state~0); {158#(= ssl3_accept_~blastFlag~0 0)} is VALID [2022-04-15 11:16:53,918 INFO L290 TraceCheckUtils]: 35: Hoare triple {158#(= ssl3_accept_~blastFlag~0 0)} assume !(8448 == ~s__state~0); {158#(= ssl3_accept_~blastFlag~0 0)} is VALID [2022-04-15 11:16:53,918 INFO L290 TraceCheckUtils]: 36: Hoare triple {158#(= ssl3_accept_~blastFlag~0 0)} assume !(8576 == ~s__state~0); {158#(= ssl3_accept_~blastFlag~0 0)} is VALID [2022-04-15 11:16:53,919 INFO L290 TraceCheckUtils]: 37: Hoare triple {158#(= ssl3_accept_~blastFlag~0 0)} assume !(8577 == ~s__state~0); {158#(= ssl3_accept_~blastFlag~0 0)} is VALID [2022-04-15 11:16:53,920 INFO L290 TraceCheckUtils]: 38: Hoare triple {158#(= ssl3_accept_~blastFlag~0 0)} assume !(8592 == ~s__state~0); {158#(= ssl3_accept_~blastFlag~0 0)} is VALID [2022-04-15 11:16:53,921 INFO L290 TraceCheckUtils]: 39: Hoare triple {158#(= ssl3_accept_~blastFlag~0 0)} assume !(8593 == ~s__state~0); {158#(= ssl3_accept_~blastFlag~0 0)} is VALID [2022-04-15 11:16:53,921 INFO L290 TraceCheckUtils]: 40: Hoare triple {158#(= ssl3_accept_~blastFlag~0 0)} assume !(8608 == ~s__state~0); {158#(= ssl3_accept_~blastFlag~0 0)} is VALID [2022-04-15 11:16:53,922 INFO L290 TraceCheckUtils]: 41: Hoare triple {158#(= ssl3_accept_~blastFlag~0 0)} assume !(8609 == ~s__state~0); {158#(= ssl3_accept_~blastFlag~0 0)} is VALID [2022-04-15 11:16:53,922 INFO L290 TraceCheckUtils]: 42: Hoare triple {158#(= ssl3_accept_~blastFlag~0 0)} assume !(8640 == ~s__state~0); {158#(= ssl3_accept_~blastFlag~0 0)} is VALID [2022-04-15 11:16:53,923 INFO L290 TraceCheckUtils]: 43: Hoare triple {158#(= ssl3_accept_~blastFlag~0 0)} assume !(8641 == ~s__state~0); {158#(= ssl3_accept_~blastFlag~0 0)} is VALID [2022-04-15 11:16:53,924 INFO L290 TraceCheckUtils]: 44: Hoare triple {158#(= ssl3_accept_~blastFlag~0 0)} assume !(8656 == ~s__state~0); {158#(= ssl3_accept_~blastFlag~0 0)} is VALID [2022-04-15 11:16:53,924 INFO L290 TraceCheckUtils]: 45: Hoare triple {158#(= ssl3_accept_~blastFlag~0 0)} assume !(8657 == ~s__state~0); {158#(= ssl3_accept_~blastFlag~0 0)} is VALID [2022-04-15 11:16:53,928 INFO L290 TraceCheckUtils]: 46: Hoare triple {158#(= ssl3_accept_~blastFlag~0 0)} assume 8672 == ~s__state~0; {158#(= ssl3_accept_~blastFlag~0 0)} is VALID [2022-04-15 11:16:53,957 INFO L290 TraceCheckUtils]: 47: Hoare triple {158#(= ssl3_accept_~blastFlag~0 0)} assume -2147483648 <= #t~nondet50 && #t~nondet50 <= 2147483647;~ret~0 := #t~nondet50;havoc #t~nondet50; {158#(= ssl3_accept_~blastFlag~0 0)} is VALID [2022-04-15 11:16:53,958 INFO L290 TraceCheckUtils]: 48: Hoare triple {158#(= ssl3_accept_~blastFlag~0 0)} assume 4 == ~blastFlag~0; {154#false} is VALID [2022-04-15 11:16:53,959 INFO L290 TraceCheckUtils]: 49: Hoare triple {154#false} assume !false; {154#false} is VALID [2022-04-15 11:16:53,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-15 11:16:53,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-15 11:16:53,961 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172359310] [2022-04-15 11:16:53,962 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [172359310] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-15 11:16:53,962 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-15 11:16:53,962 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-15 11:16:53,964 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-15 11:16:53,964 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [846031500] [2022-04-15 11:16:53,964 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [846031500] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-15 11:16:53,965 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-15 11:16:53,965 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-15 11:16:53,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560630701] [2022-04-15 11:16:53,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-15 11:16:53,970 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 50 [2022-04-15 11:16:53,971 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-15 11:16:53,996 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 4 states, 4 states have (on average 11.5) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-15 11:16:54,051 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 50 edges. 50 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-15 11:16:54,051 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-15 11:16:54,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-15 11:16:54,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-15 11:16:54,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-15 11:16:54,078 INFO L87 Difference]: Start difference. First operand has 150 states, 142 states have (on average 1.7112676056338028) internal successors, (243), 143 states have internal predecessors, (243), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 4 states, 4 states have (on average 11.5) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-15 11:16:54,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-15 11:16:54,951 INFO L93 Difference]: Finished difference Result 414 states and 701 transitions. [2022-04-15 11:16:54,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-15 11:16:54,951 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 50 [2022-04-15 11:16:54,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-15 11:16:54,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 11.5) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-15 11:16:54,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 701 transitions. [2022-04-15 11:16:54,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 11.5) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-15 11:16:54,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 701 transitions. [2022-04-15 11:16:54,992 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 4 states and 701 transitions. [2022-04-15 11:16:55,610 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 701 edges. 701 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-15 11:16:55,628 INFO L225 Difference]: With dead ends: 414 [2022-04-15 11:16:55,629 INFO L226 Difference]: Without dead ends: 251 [2022-04-15 11:16:55,632 INFO L912 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 [2022-04-15 11:16:55,635 INFO L913 BasicCegarLoop]: 240 mSDtfsCounter, 634 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 236 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 636 SdHoareTripleChecker+Valid, 249 SdHoareTripleChecker+Invalid, 243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-04-15 11:16:55,636 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [636 Valid, 249 Invalid, 243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 236 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-04-15 11:16:55,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2022-04-15 11:16:55,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 251. [2022-04-15 11:16:55,686 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-15 11:16:55,688 INFO L82 GeneralOperation]: Start isEquivalent. First operand 251 states. Second operand has 251 states, 246 states have (on average 1.524390243902439) internal successors, (375), 246 states have internal predecessors, (375), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-15 11:16:55,690 INFO L74 IsIncluded]: Start isIncluded. First operand 251 states. Second operand has 251 states, 246 states have (on average 1.524390243902439) internal successors, (375), 246 states have internal predecessors, (375), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-15 11:16:55,692 INFO L87 Difference]: Start difference. First operand 251 states. Second operand has 251 states, 246 states have (on average 1.524390243902439) internal successors, (375), 246 states have internal predecessors, (375), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-15 11:16:55,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-15 11:16:55,705 INFO L93 Difference]: Finished difference Result 251 states and 379 transitions. [2022-04-15 11:16:55,705 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 379 transitions. [2022-04-15 11:16:55,706 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-15 11:16:55,707 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-15 11:16:55,708 INFO L74 IsIncluded]: Start isIncluded. First operand has 251 states, 246 states have (on average 1.524390243902439) internal successors, (375), 246 states have internal predecessors, (375), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Second operand 251 states. [2022-04-15 11:16:55,708 INFO L87 Difference]: Start difference. First operand has 251 states, 246 states have (on average 1.524390243902439) internal successors, (375), 246 states have internal predecessors, (375), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Second operand 251 states. [2022-04-15 11:16:55,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-15 11:16:55,720 INFO L93 Difference]: Finished difference Result 251 states and 379 transitions. [2022-04-15 11:16:55,720 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 379 transitions. [2022-04-15 11:16:55,722 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-15 11:16:55,722 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-15 11:16:55,722 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-15 11:16:55,722 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-15 11:16:55,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 251 states, 246 states have (on average 1.524390243902439) internal successors, (375), 246 states have internal predecessors, (375), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-15 11:16:55,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 379 transitions. [2022-04-15 11:16:55,737 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 379 transitions. Word has length 50 [2022-04-15 11:16:55,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-15 11:16:55,738 INFO L478 AbstractCegarLoop]: Abstraction has 251 states and 379 transitions. [2022-04-15 11:16:55,738 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-15 11:16:55,738 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 251 states and 379 transitions. [2022-04-15 11:16:56,078 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 379 edges. 379 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-15 11:16:56,079 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 379 transitions. [2022-04-15 11:16:56,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-04-15 11:16:56,081 INFO L491 BasicCegarLoop]: Found error trace [2022-04-15 11:16:56,081 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-15 11:16:56,081 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-15 11:16:56,081 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-15 11:16:56,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-15 11:16:56,082 INFO L85 PathProgramCache]: Analyzing trace with hash -1459295990, now seen corresponding path program 1 times [2022-04-15 11:16:56,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-15 11:16:56,082 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1000218963] [2022-04-15 11:16:56,917 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: Computed reflexive-transitive closure does not contain relation itself.Something went wrong in computation of loop acceleration formula. at de.uni_freiburg.informatik.ultimate.icfgtransformer.loopacceleration.jordan.JordanLoopAcceleration.checkPropertiesOfLoopAccelerationFormula(JordanLoopAcceleration.java:1038) at de.uni_freiburg.informatik.ultimate.icfgtransformer.loopacceleration.jordan.JordanLoopAcceleration.createLoopAccelerationTermSequential(JordanLoopAcceleration.java:693) at de.uni_freiburg.informatik.ultimate.icfgtransformer.loopacceleration.jordan.JordanLoopAcceleration.createLoopAccelerationFormula(JordanLoopAcceleration.java:528) at de.uni_freiburg.informatik.ultimate.icfgtransformer.loopacceleration.jordan.JordanLoopAcceleration.accelerateLoop(JordanLoopAcceleration.java:156) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.loopaccelerator.AcceleratorJordan.accelerateLoop(AcceleratorJordan.java:88) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolationCore.acceleratedInterpolationCoreIsCorrect(AcceleratedInterpolationCore.java:246) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolation.(AcceleratedInterpolation.java:195) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleAcceleratedInterpolation.construct(IpTcStrategyModuleAcceleratedInterpolation.java:80) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:209) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:121) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:595) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:414) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:349) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:331) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:411) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:301) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:261) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:153) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-04-15 11:16:56,921 INFO L158 Benchmark]: Toolchain (without parser) took 4666.15ms. Allocated memory was 185.6MB in the beginning and 328.2MB in the end (delta: 142.6MB). Free memory was 128.8MB in the beginning and 240.5MB in the end (delta: -111.7MB). Peak memory consumption was 119.4MB. Max. memory is 8.0GB. [2022-04-15 11:16:56,922 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 185.6MB. Free memory is still 145.6MB. There was no memory consumed. Max. memory is 8.0GB. [2022-04-15 11:16:56,922 INFO L158 Benchmark]: CACSL2BoogieTranslator took 420.74ms. Allocated memory was 185.6MB in the beginning and 257.9MB in the end (delta: 72.4MB). Free memory was 128.7MB in the beginning and 229.0MB in the end (delta: -100.3MB). Peak memory consumption was 10.9MB. Max. memory is 8.0GB. [2022-04-15 11:16:56,923 INFO L158 Benchmark]: Boogie Preprocessor took 54.59ms. Allocated memory is still 257.9MB. Free memory was 229.0MB in the beginning and 226.3MB in the end (delta: 2.7MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-04-15 11:16:56,923 INFO L158 Benchmark]: RCFGBuilder took 746.84ms. Allocated memory is still 257.9MB. Free memory was 226.3MB in the beginning and 190.7MB in the end (delta: 35.7MB). Peak memory consumption was 35.7MB. Max. memory is 8.0GB. [2022-04-15 11:16:56,924 INFO L158 Benchmark]: TraceAbstraction took 3437.75ms. Allocated memory was 257.9MB in the beginning and 328.2MB in the end (delta: 70.3MB). Free memory was 190.2MB in the beginning and 240.5MB in the end (delta: -50.3MB). Peak memory consumption was 109.1MB. Max. memory is 8.0GB. [2022-04-15 11:16:56,926 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 185.6MB. Free memory is still 145.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 420.74ms. Allocated memory was 185.6MB in the beginning and 257.9MB in the end (delta: 72.4MB). Free memory was 128.7MB in the beginning and 229.0MB in the end (delta: -100.3MB). Peak memory consumption was 10.9MB. Max. memory is 8.0GB. * Boogie Preprocessor took 54.59ms. Allocated memory is still 257.9MB. Free memory was 229.0MB in the beginning and 226.3MB in the end (delta: 2.7MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 746.84ms. Allocated memory is still 257.9MB. Free memory was 226.3MB in the beginning and 190.7MB in the end (delta: 35.7MB). Peak memory consumption was 35.7MB. Max. memory is 8.0GB. * TraceAbstraction took 3437.75ms. Allocated memory was 257.9MB in the beginning and 328.2MB in the end (delta: 70.3MB). Free memory was 190.2MB in the beginning and 240.5MB in the end (delta: -50.3MB). Peak memory consumption was 109.1MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: Computed reflexive-transitive closure does not contain relation itself.Something went wrong in computation of loop acceleration formula. de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: Computed reflexive-transitive closure does not contain relation itself.Something went wrong in computation of loop acceleration formula.: de.uni_freiburg.informatik.ultimate.icfgtransformer.loopacceleration.jordan.JordanLoopAcceleration.checkPropertiesOfLoopAccelerationFormula(JordanLoopAcceleration.java:1038) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-04-15 11:16:56,957 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...