/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/loop-zilu/benchmark02_linear.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-b030c9e [2022-03-20 13:32:55,109 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-20 13:32:55,110 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-20 13:32:55,158 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-20 13:32:55,158 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-20 13:32:55,159 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-20 13:32:55,179 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-20 13:32:55,184 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-20 13:32:55,186 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-20 13:32:55,190 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-20 13:32:55,190 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-20 13:32:55,191 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-20 13:32:55,191 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-20 13:32:55,192 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-20 13:32:55,192 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-20 13:32:55,193 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-20 13:32:55,193 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-20 13:32:55,194 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-20 13:32:55,194 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-20 13:32:55,198 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-20 13:32:55,200 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-03-20 13:32:55,200 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-20 13:32:55,201 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-20 13:32:55,202 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-20 13:32:55,204 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-20 13:32:55,208 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-03-20 13:32:55,208 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-03-20 13:32:55,209 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-03-20 13:32:55,209 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-03-20 13:32:55,209 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-03-20 13:32:55,210 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-03-20 13:32:55,210 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-03-20 13:32:55,212 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-03-20 13:32:55,212 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-03-20 13:32:55,213 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-03-20 13:32:55,213 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-03-20 13:32:55,213 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-03-20 13:32:55,214 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-03-20 13:32:55,214 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-03-20 13:32:55,214 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-20 13:32:55,215 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-20 13:32:55,216 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-20 13:32:55,218 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationJordan_32.epf [2022-03-20 13:32:55,227 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-20 13:32:55,228 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-20 13:32:55,229 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-20 13:32:55,229 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-20 13:32:55,229 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-20 13:32:55,229 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-20 13:32:55,230 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-20 13:32:55,230 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-20 13:32:55,230 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-20 13:32:55,230 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-20 13:32:55,230 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-20 13:32:55,230 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-20 13:32:55,231 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-20 13:32:55,231 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-20 13:32:55,231 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-20 13:32:55,231 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-20 13:32:55,231 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-20 13:32:55,231 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-20 13:32:55,231 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-20 13:32:55,231 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-20 13:32:55,231 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2022-03-20 13:32:55,232 INFO L138 SettingsManager]: * Trace refinement strategy=ACCELERATED_INTERPOLATION [2022-03-20 13:32:55,232 INFO L138 SettingsManager]: * Trace refinement strategy used in Accelerated Interpolation=CAMEL [2022-03-20 13:32:55,232 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-20 13:32:55,232 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=JORDAN [2022-03-20 13:32:55,232 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-03-20 13:32:55,440 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-20 13:32:55,462 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-20 13:32:55,464 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-20 13:32:55,465 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-20 13:32:55,471 INFO L275 PluginConnector]: CDTParser initialized [2022-03-20 13:32:55,472 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-zilu/benchmark02_linear.i [2022-03-20 13:32:55,522 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/232483534/e527d76954524533b5a2842b7f2ea7a0/FLAG72e15d26c [2022-03-20 13:32:55,866 INFO L306 CDTParser]: Found 1 translation units. [2022-03-20 13:32:55,866 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-zilu/benchmark02_linear.i [2022-03-20 13:32:55,871 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/232483534/e527d76954524533b5a2842b7f2ea7a0/FLAG72e15d26c [2022-03-20 13:32:55,880 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/232483534/e527d76954524533b5a2842b7f2ea7a0 [2022-03-20 13:32:55,882 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-20 13:32:55,883 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-20 13:32:55,884 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-20 13:32:55,884 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-20 13:32:55,887 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-20 13:32:55,887 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.03 01:32:55" (1/1) ... [2022-03-20 13:32:55,888 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d26f7eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 01:32:55, skipping insertion in model container [2022-03-20 13:32:55,888 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.03 01:32:55" (1/1) ... [2022-03-20 13:32:55,894 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-20 13:32:55,909 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-20 13:32:56,085 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-zilu/benchmark02_linear.i[868,881] [2022-03-20 13:32:56,099 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-20 13:32:56,105 INFO L203 MainTranslator]: Completed pre-run [2022-03-20 13:32:56,113 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-zilu/benchmark02_linear.i[868,881] [2022-03-20 13:32:56,115 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-20 13:32:56,125 INFO L208 MainTranslator]: Completed translation [2022-03-20 13:32:56,125 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 01:32:56 WrapperNode [2022-03-20 13:32:56,126 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-20 13:32:56,126 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-20 13:32:56,127 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-20 13:32:56,127 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-20 13:32:56,133 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 01:32:56" (1/1) ... [2022-03-20 13:32:56,133 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 01:32:56" (1/1) ... [2022-03-20 13:32:56,138 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 01:32:56" (1/1) ... [2022-03-20 13:32:56,138 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 01:32:56" (1/1) ... [2022-03-20 13:32:56,142 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 01:32:56" (1/1) ... [2022-03-20 13:32:56,144 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 01:32:56" (1/1) ... [2022-03-20 13:32:56,147 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 01:32:56" (1/1) ... [2022-03-20 13:32:56,152 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-20 13:32:56,153 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-20 13:32:56,153 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-20 13:32:56,153 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-20 13:32:56,154 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 01:32:56" (1/1) ... [2022-03-20 13:32:56,158 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-20 13:32:56,164 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 13:32:56,173 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) [2022-03-20 13:32:56,179 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 [2022-03-20 13:32:56,200 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-03-20 13:32:56,200 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-20 13:32:56,201 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-03-20 13:32:56,201 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-03-20 13:32:56,201 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-03-20 13:32:56,201 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-03-20 13:32:56,202 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2022-03-20 13:32:56,202 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2022-03-20 13:32:56,202 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-03-20 13:32:56,202 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-20 13:32:56,202 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-03-20 13:32:56,203 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2022-03-20 13:32:56,203 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-03-20 13:32:56,203 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-03-20 13:32:56,203 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-03-20 13:32:56,203 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-20 13:32:56,204 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-20 13:32:56,204 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-20 13:32:56,204 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-20 13:32:56,204 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-20 13:32:56,270 INFO L234 CfgBuilder]: Building ICFG [2022-03-20 13:32:56,271 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-20 13:32:56,378 INFO L275 CfgBuilder]: Performing block encoding [2022-03-20 13:32:56,382 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-20 13:32:56,382 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-03-20 13:32:56,397 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 01:32:56 BoogieIcfgContainer [2022-03-20 13:32:56,397 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-20 13:32:56,398 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-20 13:32:56,398 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-20 13:32:56,401 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-20 13:32:56,401 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.03 01:32:55" (1/3) ... [2022-03-20 13:32:56,401 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6123cfca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.03 01:32:56, skipping insertion in model container [2022-03-20 13:32:56,402 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 01:32:56" (2/3) ... [2022-03-20 13:32:56,402 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6123cfca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.03 01:32:56, skipping insertion in model container [2022-03-20 13:32:56,402 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 01:32:56" (3/3) ... [2022-03-20 13:32:56,403 INFO L111 eAbstractionObserver]: Analyzing ICFG benchmark02_linear.i [2022-03-20 13:32:56,406 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-03-20 13:32:56,406 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-20 13:32:56,449 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-20 13:32:56,469 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 [2022-03-20 13:32:56,469 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-03-20 13:32:56,480 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 13 states have internal predecessors, (17), 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) [2022-03-20 13:32:56,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-03-20 13:32:56,487 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 13:32:56,487 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 13:32:56,488 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 13:32:56,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 13:32:56,495 INFO L85 PathProgramCache]: Analyzing trace with hash -304977768, now seen corresponding path program 1 times [2022-03-20 13:32:56,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 13:32:56,504 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1798093218] [2022-03-20 13:32:56,513 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-20 13:32:56,513 INFO L85 PathProgramCache]: Analyzing trace with hash -304977768, now seen corresponding path program 2 times [2022-03-20 13:32:56,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 13:32:56,515 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903254751] [2022-03-20 13:32:56,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 13:32:56,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 13:32:56,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 13:32:56,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 13:32:56,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 13:32:56,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 13:32:56,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 13:32:56,734 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903254751] [2022-03-20 13:32:56,735 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [903254751] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 13:32:56,735 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 13:32:56,735 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-20 13:32:56,737 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 13:32:56,737 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1798093218] [2022-03-20 13:32:56,737 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1798093218] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 13:32:56,737 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 13:32:56,737 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-20 13:32:56,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262842683] [2022-03-20 13:32:56,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 13:32:56,741 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-20 13:32:56,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 13:32:56,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-20 13:32:56,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-20 13:32:56,765 INFO L87 Difference]: Start difference. First operand has 20 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 13 states have internal predecessors, (17), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 4 states have internal predecessors, (8), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 13:32:56,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 13:32:56,860 INFO L93 Difference]: Finished difference Result 32 states and 36 transitions. [2022-03-20 13:32:56,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-20 13:32:56,862 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 4 states have internal predecessors, (8), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2022-03-20 13:32:56,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 13:32:56,870 INFO L225 Difference]: With dead ends: 32 [2022-03-20 13:32:56,870 INFO L226 Difference]: Without dead ends: 0 [2022-03-20 13:32:56,873 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-03-20 13:32:56,876 INFO L913 BasicCegarLoop]: 18 mSDtfsCounter, 18 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-20 13:32:56,878 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 39 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-20 13:32:56,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-03-20 13:32:56,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-03-20 13:32:56,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-20 13:32:56,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-03-20 13:32:56,895 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2022-03-20 13:32:56,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 13:32:56,896 INFO L478 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-03-20 13:32:56,896 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 4 states have internal predecessors, (8), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 13:32:56,896 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-03-20 13:32:56,896 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-03-20 13:32:56,898 INFO L788 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-03-20 13:32:56,899 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-20 13:32:56,900 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-03-20 13:32:56,984 INFO L882 garLoopResultBuilder]: For program point reach_errorEXIT(line 11) no Hoare annotation was computed. [2022-03-20 13:32:56,985 INFO L882 garLoopResultBuilder]: For program point reach_errorENTRY(line 11) no Hoare annotation was computed. [2022-03-20 13:32:56,985 INFO L882 garLoopResultBuilder]: For program point L11-1(line 11) no Hoare annotation was computed. [2022-03-20 13:32:56,985 INFO L885 garLoopResultBuilder]: At program point mainENTRY(lines 19 30) the Hoare annotation is: true [2022-03-20 13:32:56,985 INFO L878 garLoopResultBuilder]: At program point L28(line 28) the Hoare annotation is: (< 0 main_~l~0) [2022-03-20 13:32:56,985 INFO L885 garLoopResultBuilder]: At program point mainEXIT(lines 19 30) the Hoare annotation is: true [2022-03-20 13:32:56,985 INFO L885 garLoopResultBuilder]: At program point L24(line 24) the Hoare annotation is: true [2022-03-20 13:32:56,986 INFO L878 garLoopResultBuilder]: At program point L25-2(lines 25 27) the Hoare annotation is: (< 0 main_~l~0) [2022-03-20 13:32:56,986 INFO L878 garLoopResultBuilder]: At program point L25-3(lines 25 27) the Hoare annotation is: (< 0 main_~l~0) [2022-03-20 13:32:56,986 INFO L885 garLoopResultBuilder]: At program point mainFINAL(lines 19 30) the Hoare annotation is: true [2022-03-20 13:32:56,986 INFO L885 garLoopResultBuilder]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2022-03-20 13:32:56,986 INFO L878 garLoopResultBuilder]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|)) [2022-03-20 13:32:56,986 INFO L885 garLoopResultBuilder]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2022-03-20 13:32:56,986 INFO L885 garLoopResultBuilder]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2022-03-20 13:32:56,987 INFO L885 garLoopResultBuilder]: At program point L-1(line -1) the Hoare annotation is: true [2022-03-20 13:32:56,987 INFO L885 garLoopResultBuilder]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2022-03-20 13:32:56,987 INFO L885 garLoopResultBuilder]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2022-03-20 13:32:56,987 INFO L878 garLoopResultBuilder]: At program point L16(line 16) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2022-03-20 13:32:56,987 INFO L878 garLoopResultBuilder]: At program point L15(lines 15 17) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| 0) (not (= __VERIFIER_assert_~cond 0))) [2022-03-20 13:32:56,987 INFO L885 garLoopResultBuilder]: At program point __VERIFIER_assertENTRY(lines 14 18) the Hoare annotation is: true [2022-03-20 13:32:56,987 INFO L878 garLoopResultBuilder]: At program point L15-2(lines 14 18) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| 0) (not (= __VERIFIER_assert_~cond 0))) [2022-03-20 13:32:56,987 INFO L878 garLoopResultBuilder]: At program point __VERIFIER_assertEXIT(lines 14 18) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| 0) (not (= __VERIFIER_assert_~cond 0))) [2022-03-20 13:32:56,988 INFO L878 garLoopResultBuilder]: At program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 16) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2022-03-20 13:32:56,990 INFO L719 BasicCegarLoop]: Path program histogram: [2] [2022-03-20 13:32:56,991 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-20 13:32:57,004 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.03 01:32:57 BoogieIcfgContainer [2022-03-20 13:32:57,005 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-20 13:32:57,009 INFO L158 Benchmark]: Toolchain (without parser) took 1122.53ms. Allocated memory is still 194.0MB. Free memory was 144.2MB in the beginning and 126.2MB in the end (delta: 18.0MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. [2022-03-20 13:32:57,009 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 194.0MB. Free memory is still 160.1MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-20 13:32:57,010 INFO L158 Benchmark]: CACSL2BoogieTranslator took 242.32ms. Allocated memory is still 194.0MB. Free memory was 144.0MB in the beginning and 169.6MB in the end (delta: -25.6MB). Peak memory consumption was 7.1MB. Max. memory is 8.0GB. [2022-03-20 13:32:57,010 INFO L158 Benchmark]: Boogie Preprocessor took 25.60ms. Allocated memory is still 194.0MB. Free memory was 169.6MB in the beginning and 168.5MB in the end (delta: 1.1MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-20 13:32:57,010 INFO L158 Benchmark]: RCFGBuilder took 244.18ms. Allocated memory is still 194.0MB. Free memory was 168.1MB in the beginning and 158.5MB in the end (delta: 9.6MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-03-20 13:32:57,011 INFO L158 Benchmark]: TraceAbstraction took 606.57ms. Allocated memory is still 194.0MB. Free memory was 157.6MB in the beginning and 126.2MB in the end (delta: 31.5MB). Peak memory consumption was 31.5MB. Max. memory is 8.0GB. [2022-03-20 13:32:57,018 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 194.0MB. Free memory is still 160.1MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 242.32ms. Allocated memory is still 194.0MB. Free memory was 144.0MB in the beginning and 169.6MB in the end (delta: -25.6MB). Peak memory consumption was 7.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 25.60ms. Allocated memory is still 194.0MB. Free memory was 169.6MB in the beginning and 168.5MB in the end (delta: 1.1MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 244.18ms. Allocated memory is still 194.0MB. Free memory was 168.1MB in the beginning and 158.5MB in the end (delta: 9.6MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * TraceAbstraction took 606.57ms. Allocated memory is still 194.0MB. Free memory was 157.6MB in the beginning and 126.2MB in the end (delta: 31.5MB). Peak memory consumption was 31.5MB. 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 - PositiveResult [Line: 16]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 23 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 18 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 18 mSDsluCounter, 39 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 21 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 38 IncrementalHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 18 mSDtfsCounter, 38 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred in iteration=0, InterpolantAutomatonStates: 6, 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, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 20 LocationsWithAnnotation, 26 PreInvPairs, 36 NumberOfFragments, 57 HoareAnnotationTreeSize, 26 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 20 FomulaSimplificationsInter, 15 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 25]: Loop Invariant Derived loop invariant: 0 < l - ProcedureContractResult [Line: 19]: Procedure Contract for main Derived contract for procedure main: 1 - ProcedureContractResult [Line: 14]: Procedure Contract for __VERIFIER_assert Derived contract for procedure __VERIFIER_assert: \old(cond) == 0 || !(cond == 0) RESULT: Ultimate proved your program to be correct! [2022-03-20 13:32:57,052 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...