/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/AutomizerCTransformed.xml -s ../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf -i ../../../trunk/examples/svcomp/loops/string-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-5d317bd [2022-03-18 16:56:26,667 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-18 16:56:26,668 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-18 16:56:26,704 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-18 16:56:26,704 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-18 16:56:26,705 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-18 16:56:26,708 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-18 16:56:26,712 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-18 16:56:26,714 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-18 16:56:26,718 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-18 16:56:26,719 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-18 16:56:26,720 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-18 16:56:26,721 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-18 16:56:26,723 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-18 16:56:26,724 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-18 16:56:26,729 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-18 16:56:26,730 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-18 16:56:26,730 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-18 16:56:26,732 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-18 16:56:26,737 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-18 16:56:26,739 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-03-18 16:56:26,740 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-18 16:56:26,740 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-18 16:56:26,741 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-18 16:56:26,742 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-18 16:56:26,748 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-03-18 16:56:26,757 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-18 16:56:26,757 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-18 16:56:26,759 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-18 16:56:26,759 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2022-03-18 16:56:26,769 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-18 16:56:26,770 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-18 16:56:26,771 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-18 16:56:26,771 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-18 16:56:26,771 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-18 16:56:26,771 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-18 16:56:26,771 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-18 16:56:26,772 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-18 16:56:26,772 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-18 16:56:26,772 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-18 16:56:26,773 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-18 16:56:26,773 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-18 16:56:26,773 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-18 16:56:26,773 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-18 16:56:26,773 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-18 16:56:26,773 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-18 16:56:26,774 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-18 16:56:26,774 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-18 16:56:26,774 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-18 16:56:26,774 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-18 16:56:26,774 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-18 16:56:26,775 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-03-18 16:56:26,775 INFO L138 SettingsManager]: * TransformationType=LOOP_ACCELERATION_JORDAN 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-03-18 16:56:27,008 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-18 16:56:27,039 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-18 16:56:27,041 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-18 16:56:27,042 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-18 16:56:27,043 INFO L275 PluginConnector]: CDTParser initialized [2022-03-18 16:56:27,044 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/string-1.i [2022-03-18 16:56:27,104 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ffa26f9cd/a3ce625e9f2b4ad8a11b6915c40332ba/FLAGc8e007dde [2022-03-18 16:56:27,473 INFO L306 CDTParser]: Found 1 translation units. [2022-03-18 16:56:27,473 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/string-1.i [2022-03-18 16:56:27,479 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ffa26f9cd/a3ce625e9f2b4ad8a11b6915c40332ba/FLAGc8e007dde [2022-03-18 16:56:27,907 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ffa26f9cd/a3ce625e9f2b4ad8a11b6915c40332ba [2022-03-18 16:56:27,909 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-18 16:56:27,910 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-18 16:56:27,913 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-18 16:56:27,913 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-18 16:56:27,916 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-18 16:56:27,917 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.03 04:56:27" (1/1) ... [2022-03-18 16:56:27,918 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@729bd3b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 04:56:27, skipping insertion in model container [2022-03-18 16:56:27,918 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.03 04:56:27" (1/1) ... [2022-03-18 16:56:27,926 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-18 16:56:27,941 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-18 16:56:28,100 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loops/string-1.i[896,909] [2022-03-18 16:56:28,137 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-18 16:56:28,143 INFO L203 MainTranslator]: Completed pre-run [2022-03-18 16:56:28,164 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loops/string-1.i[896,909] [2022-03-18 16:56:28,178 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-18 16:56:28,189 INFO L208 MainTranslator]: Completed translation [2022-03-18 16:56:28,189 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 04:56:28 WrapperNode [2022-03-18 16:56:28,189 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-18 16:56:28,190 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-18 16:56:28,190 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-18 16:56:28,190 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-18 16:56:28,200 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 04:56:28" (1/1) ... [2022-03-18 16:56:28,200 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 04:56:28" (1/1) ... [2022-03-18 16:56:28,205 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 04:56:28" (1/1) ... [2022-03-18 16:56:28,205 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 04:56:28" (1/1) ... [2022-03-18 16:56:28,212 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 04:56:28" (1/1) ... [2022-03-18 16:56:28,219 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 04:56:28" (1/1) ... [2022-03-18 16:56:28,222 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 04:56:28" (1/1) ... [2022-03-18 16:56:28,224 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-18 16:56:28,225 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-18 16:56:28,225 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-18 16:56:28,225 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-18 16:56:28,226 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 04:56:28" (1/1) ... [2022-03-18 16:56:28,238 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-18 16:56:28,249 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-18 16:56:28,261 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) [2022-03-18 16:56:28,274 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 [2022-03-18 16:56:28,300 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-03-18 16:56:28,301 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-18 16:56:28,301 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-03-18 16:56:28,301 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-03-18 16:56:28,301 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-03-18 16:56:28,301 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-03-18 16:56:28,301 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-03-18 16:56:28,301 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-03-18 16:56:28,301 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2022-03-18 16:56:28,302 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2022-03-18 16:56:28,302 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-03-18 16:56:28,302 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-18 16:56:28,302 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-03-18 16:56:28,302 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-03-18 16:56:28,302 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-03-18 16:56:28,302 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-03-18 16:56:28,302 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-03-18 16:56:28,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-18 16:56:28,303 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-18 16:56:28,303 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-18 16:56:28,303 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-03-18 16:56:28,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-18 16:56:28,303 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-18 16:56:28,363 INFO L234 CfgBuilder]: Building ICFG [2022-03-18 16:56:28,364 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-18 16:56:28,511 INFO L275 CfgBuilder]: Performing block encoding [2022-03-18 16:56:28,517 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-18 16:56:28,517 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2022-03-18 16:56:28,519 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.03 04:56:28 BoogieIcfgContainer [2022-03-18 16:56:28,519 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-18 16:56:28,519 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-03-18 16:56:28,520 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-03-18 16:56:28,521 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-03-18 16:56:28,523 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.03 04:56:28" (1/1) ... [2022-03-18 16:56:28,542 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 18.03 04:56:28 BasicIcfg [2022-03-18 16:56:28,542 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-03-18 16:56:28,543 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-18 16:56:28,544 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-18 16:56:28,546 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-18 16:56:28,547 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.03 04:56:27" (1/4) ... [2022-03-18 16:56:28,547 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@319a5a1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.03 04:56:28, skipping insertion in model container [2022-03-18 16:56:28,547 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 04:56:28" (2/4) ... [2022-03-18 16:56:28,548 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@319a5a1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.03 04:56:28, skipping insertion in model container [2022-03-18 16:56:28,548 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.03 04:56:28" (3/4) ... [2022-03-18 16:56:28,548 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@319a5a1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.03 04:56:28, skipping insertion in model container [2022-03-18 16:56:28,548 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 18.03 04:56:28" (4/4) ... [2022-03-18 16:56:28,549 INFO L111 eAbstractionObserver]: Analyzing ICFG string-1.iJordan [2022-03-18 16:56:28,553 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2022-03-18 16:56:28,553 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-18 16:56:28,593 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-18 16:56:28,607 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=ForwardPredicates, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, 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 [2022-03-18 16:56:28,608 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-03-18 16:56:28,619 INFO L276 IsEmpty]: Start isEmpty. Operand has 35 states, 27 states have (on average 1.5925925925925926) internal successors, (43), 28 states have internal predecessors, (43), 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) [2022-03-18 16:56:28,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-03-18 16:56:28,626 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:56:28,627 INFO L500 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] [2022-03-18 16:56:28,627 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:56:28,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:56:28,632 INFO L85 PathProgramCache]: Analyzing trace with hash -1544634334, now seen corresponding path program 1 times [2022-03-18 16:56:28,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:56:28,640 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517337707] [2022-03-18 16:56:28,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:56:28,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:56:28,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:56:28,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:56:28,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:56:28,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 16:56:28,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:56:28,796 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1517337707] [2022-03-18 16:56:28,804 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1517337707] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:56:28,804 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:56:28,804 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-18 16:56:28,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725276718] [2022-03-18 16:56:28,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:56:28,811 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-18 16:56:28,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:56:28,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-18 16:56:28,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-18 16:56:28,836 INFO L87 Difference]: Start difference. First operand has 35 states, 27 states have (on average 1.5925925925925926) internal successors, (43), 28 states have internal predecessors, (43), 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 3 states, 3 states have (on average 6.0) internal successors, (18), 2 states have internal predecessors, (18), 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) [2022-03-18 16:56:28,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:56:28,865 INFO L93 Difference]: Finished difference Result 35 states and 43 transitions. [2022-03-18 16:56:28,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-18 16:56:28,869 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 2 states have internal predecessors, (18), 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 22 [2022-03-18 16:56:28,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:56:28,875 INFO L225 Difference]: With dead ends: 35 [2022-03-18 16:56:28,875 INFO L226 Difference]: Without dead ends: 28 [2022-03-18 16:56:28,877 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-18 16:56:28,880 INFO L912 BasicCegarLoop]: 42 mSDtfsCounter, 34 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-18 16:56:28,881 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [35 Valid, 45 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-18 16:56:28,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2022-03-18 16:56:28,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2022-03-18 16:56:28,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 23 states have (on average 1.2608695652173914) internal successors, (29), 23 states have internal predecessors, (29), 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) [2022-03-18 16:56:28,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 33 transitions. [2022-03-18 16:56:28,913 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 33 transitions. Word has length 22 [2022-03-18 16:56:28,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:56:28,913 INFO L478 AbstractCegarLoop]: Abstraction has 28 states and 33 transitions. [2022-03-18 16:56:28,913 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 2 states have internal predecessors, (18), 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) [2022-03-18 16:56:28,913 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 33 transitions. [2022-03-18 16:56:28,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-03-18 16:56:28,914 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:56:28,914 INFO L500 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] [2022-03-18 16:56:28,915 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-18 16:56:28,915 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:56:28,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:56:28,916 INFO L85 PathProgramCache]: Analyzing trace with hash -1694186334, now seen corresponding path program 1 times [2022-03-18 16:56:28,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:56:28,916 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [152028012] [2022-03-18 16:56:28,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:56:28,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:56:28,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:56:28,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:56:29,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:56:29,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 16:56:29,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:56:29,009 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [152028012] [2022-03-18 16:56:29,009 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [152028012] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:56:29,009 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:56:29,009 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-18 16:56:29,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779256646] [2022-03-18 16:56:29,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:56:29,011 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-18 16:56:29,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:56:29,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-18 16:56:29,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-18 16:56:29,012 INFO L87 Difference]: Start difference. First operand 28 states and 33 transitions. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 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) [2022-03-18 16:56:29,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:56:29,101 INFO L93 Difference]: Finished difference Result 36 states and 43 transitions. [2022-03-18 16:56:29,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-18 16:56:29,102 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 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 24 [2022-03-18 16:56:29,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:56:29,105 INFO L225 Difference]: With dead ends: 36 [2022-03-18 16:56:29,105 INFO L226 Difference]: Without dead ends: 36 [2022-03-18 16:56:29,106 INFO L911 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 [2022-03-18 16:56:29,107 INFO L912 BasicCegarLoop]: 25 mSDtfsCounter, 37 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-18 16:56:29,107 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 32 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-18 16:56:29,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2022-03-18 16:56:29,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 30. [2022-03-18 16:56:29,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 25 states have (on average 1.24) internal successors, (31), 25 states have internal predecessors, (31), 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) [2022-03-18 16:56:29,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 35 transitions. [2022-03-18 16:56:29,113 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 35 transitions. Word has length 24 [2022-03-18 16:56:29,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:56:29,114 INFO L478 AbstractCegarLoop]: Abstraction has 30 states and 35 transitions. [2022-03-18 16:56:29,114 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 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) [2022-03-18 16:56:29,114 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 35 transitions. [2022-03-18 16:56:29,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-03-18 16:56:29,115 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:56:29,115 INFO L500 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] [2022-03-18 16:56:29,115 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-18 16:56:29,116 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:56:29,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:56:29,116 INFO L85 PathProgramCache]: Analyzing trace with hash 132080930, now seen corresponding path program 1 times [2022-03-18 16:56:29,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:56:29,117 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191003359] [2022-03-18 16:56:29,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:56:29,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:56:29,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:56:29,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:56:29,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:56:29,216 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-18 16:56:29,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:56:29,217 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [191003359] [2022-03-18 16:56:29,217 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [191003359] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-18 16:56:29,217 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1014883327] [2022-03-18 16:56:29,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:56:29,218 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-18 16:56:29,218 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-18 16:56:29,220 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-18 16:56:29,222 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-03-18 16:56:29,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:56:29,311 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 3 conjunts are in the unsatisfiable core [2022-03-18 16:56:29,316 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-18 16:56:29,440 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-18 16:56:29,440 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-18 16:56:29,544 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-18 16:56:29,545 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1014883327] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-18 16:56:29,545 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-18 16:56:29,545 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 8 [2022-03-18 16:56:29,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912930491] [2022-03-18 16:56:29,550 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-18 16:56:29,552 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-18 16:56:29,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:56:29,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-18 16:56:29,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-18 16:56:29,555 INFO L87 Difference]: Start difference. First operand 30 states and 35 transitions. Second operand has 8 states, 8 states have (on average 4.0) internal successors, (32), 7 states have internal predecessors, (32), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:56:29,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:56:29,731 INFO L93 Difference]: Finished difference Result 58 states and 71 transitions. [2022-03-18 16:56:29,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-18 16:56:29,731 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.0) internal successors, (32), 7 states have internal predecessors, (32), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 28 [2022-03-18 16:56:29,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:56:29,735 INFO L225 Difference]: With dead ends: 58 [2022-03-18 16:56:29,735 INFO L226 Difference]: Without dead ends: 58 [2022-03-18 16:56:29,736 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=80, Unknown=0, NotChecked=0, Total=132 [2022-03-18 16:56:29,740 INFO L912 BasicCegarLoop]: 25 mSDtfsCounter, 69 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-18 16:56:29,742 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [69 Valid, 42 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-18 16:56:29,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2022-03-18 16:56:29,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 42. [2022-03-18 16:56:29,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 37 states have (on average 1.162162162162162) internal successors, (43), 37 states have internal predecessors, (43), 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) [2022-03-18 16:56:29,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 47 transitions. [2022-03-18 16:56:29,757 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 47 transitions. Word has length 28 [2022-03-18 16:56:29,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:56:29,757 INFO L478 AbstractCegarLoop]: Abstraction has 42 states and 47 transitions. [2022-03-18 16:56:29,757 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.0) internal successors, (32), 7 states have internal predecessors, (32), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:56:29,758 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 47 transitions. [2022-03-18 16:56:29,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-03-18 16:56:29,759 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:56:29,759 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:56:29,790 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-03-18 16:56:29,984 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-18 16:56:29,984 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:56:29,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:56:29,985 INFO L85 PathProgramCache]: Analyzing trace with hash 1964785826, now seen corresponding path program 2 times [2022-03-18 16:56:29,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:56:29,985 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1194964675] [2022-03-18 16:56:29,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:56:29,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:56:30,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:56:30,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:56:30,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:56:30,172 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-03-18 16:56:30,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:56:30,173 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1194964675] [2022-03-18 16:56:30,173 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1194964675] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-18 16:56:30,173 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [680810484] [2022-03-18 16:56:30,173 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-18 16:56:30,174 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-18 16:56:30,174 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-18 16:56:30,175 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-18 16:56:30,176 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-03-18 16:56:30,236 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-03-18 16:56:30,236 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-18 16:56:30,237 INFO L263 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 7 conjunts are in the unsatisfiable core [2022-03-18 16:56:30,239 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-18 16:56:30,449 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-03-18 16:56:30,449 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-03-18 16:56:30,450 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [680810484] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:56:30,450 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-03-18 16:56:30,450 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8] total 13 [2022-03-18 16:56:30,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802542207] [2022-03-18 16:56:30,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:56:30,453 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-18 16:56:30,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:56:30,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-18 16:56:30,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2022-03-18 16:56:30,458 INFO L87 Difference]: Start difference. First operand 42 states and 47 transitions. Second operand has 7 states, 6 states have (on average 4.0) internal successors, (24), 6 states have internal predecessors, (24), 2 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) [2022-03-18 16:56:30,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:56:30,510 INFO L93 Difference]: Finished difference Result 50 states and 55 transitions. [2022-03-18 16:56:30,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-18 16:56:30,511 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 4.0) internal successors, (24), 6 states have internal predecessors, (24), 2 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 40 [2022-03-18 16:56:30,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:56:30,512 INFO L225 Difference]: With dead ends: 50 [2022-03-18 16:56:30,512 INFO L226 Difference]: Without dead ends: 44 [2022-03-18 16:56:30,513 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2022-03-18 16:56:30,513 INFO L912 BasicCegarLoop]: 27 mSDtfsCounter, 5 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-18 16:56:30,514 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 130 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-18 16:56:30,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2022-03-18 16:56:30,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2022-03-18 16:56:30,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 39 states have (on average 1.1538461538461537) internal successors, (45), 39 states have internal predecessors, (45), 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) [2022-03-18 16:56:30,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 49 transitions. [2022-03-18 16:56:30,518 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 49 transitions. Word has length 40 [2022-03-18 16:56:30,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:56:30,519 INFO L478 AbstractCegarLoop]: Abstraction has 44 states and 49 transitions. [2022-03-18 16:56:30,519 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 4.0) internal successors, (24), 6 states have internal predecessors, (24), 2 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) [2022-03-18 16:56:30,519 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 49 transitions. [2022-03-18 16:56:30,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-03-18 16:56:30,520 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:56:30,520 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 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] [2022-03-18 16:56:30,552 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-03-18 16:56:30,735 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2022-03-18 16:56:30,736 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:56:30,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:56:30,736 INFO L85 PathProgramCache]: Analyzing trace with hash -319404770, now seen corresponding path program 1 times [2022-03-18 16:56:30,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:56:30,736 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901422377] [2022-03-18 16:56:30,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:56:30,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:56:30,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:56:30,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:56:30,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:56:30,840 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-03-18 16:56:30,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:56:30,841 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901422377] [2022-03-18 16:56:30,841 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1901422377] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-18 16:56:30,841 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1635876889] [2022-03-18 16:56:30,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:56:30,841 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-18 16:56:30,841 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-18 16:56:30,843 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-18 16:56:30,848 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-03-18 16:56:30,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:56:30,922 INFO L263 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 6 conjunts are in the unsatisfiable core [2022-03-18 16:56:30,927 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-18 16:56:31,000 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-03-18 16:56:31,001 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-18 16:56:31,091 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-03-18 16:56:31,092 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1635876889] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-18 16:56:31,092 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-18 16:56:31,092 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 9 [2022-03-18 16:56:31,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121535221] [2022-03-18 16:56:31,093 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-18 16:56:31,094 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-18 16:56:31,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:56:31,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-18 16:56:31,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-18 16:56:31,095 INFO L87 Difference]: Start difference. First operand 44 states and 49 transitions. Second operand has 9 states, 9 states have (on average 3.888888888888889) internal successors, (35), 8 states have internal predecessors, (35), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:56:31,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:56:31,241 INFO L93 Difference]: Finished difference Result 68 states and 83 transitions. [2022-03-18 16:56:31,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-18 16:56:31,242 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.888888888888889) internal successors, (35), 8 states have internal predecessors, (35), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 42 [2022-03-18 16:56:31,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:56:31,243 INFO L225 Difference]: With dead ends: 68 [2022-03-18 16:56:31,243 INFO L226 Difference]: Without dead ends: 68 [2022-03-18 16:56:31,243 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 84 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=111, Unknown=0, NotChecked=0, Total=182 [2022-03-18 16:56:31,244 INFO L912 BasicCegarLoop]: 25 mSDtfsCounter, 90 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-18 16:56:31,244 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [90 Valid, 37 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-18 16:56:31,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2022-03-18 16:56:31,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 48. [2022-03-18 16:56:31,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 43 states have (on average 1.1395348837209303) internal successors, (49), 43 states have internal predecessors, (49), 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) [2022-03-18 16:56:31,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 53 transitions. [2022-03-18 16:56:31,249 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 53 transitions. Word has length 42 [2022-03-18 16:56:31,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:56:31,249 INFO L478 AbstractCegarLoop]: Abstraction has 48 states and 53 transitions. [2022-03-18 16:56:31,249 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.888888888888889) internal successors, (35), 8 states have internal predecessors, (35), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:56:31,249 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 53 transitions. [2022-03-18 16:56:31,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-03-18 16:56:31,253 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:56:31,253 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 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] [2022-03-18 16:56:31,281 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-03-18 16:56:31,478 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-18 16:56:31,479 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:56:31,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:56:31,479 INFO L85 PathProgramCache]: Analyzing trace with hash 18104734, now seen corresponding path program 2 times [2022-03-18 16:56:31,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:56:31,479 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128330495] [2022-03-18 16:56:31,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:56:31,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:56:31,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:56:31,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:56:31,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:56:31,604 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2022-03-18 16:56:31,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:56:31,604 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128330495] [2022-03-18 16:56:31,605 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1128330495] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-18 16:56:31,605 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1599625419] [2022-03-18 16:56:31,605 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-18 16:56:31,605 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-18 16:56:31,605 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-18 16:56:31,608 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-18 16:56:31,635 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-03-18 16:56:31,669 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-03-18 16:56:31,669 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-18 16:56:31,670 INFO L263 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 5 conjunts are in the unsatisfiable core [2022-03-18 16:56:31,671 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-18 16:56:31,792 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2022-03-18 16:56:31,792 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-03-18 16:56:31,792 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1599625419] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:56:31,792 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-03-18 16:56:31,793 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 13 [2022-03-18 16:56:31,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115004988] [2022-03-18 16:56:31,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:56:31,793 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:56:31,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:56:31,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:56:31,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2022-03-18 16:56:31,794 INFO L87 Difference]: Start difference. First operand 48 states and 53 transitions. Second operand has 5 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 2 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) [2022-03-18 16:56:31,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:56:31,805 INFO L93 Difference]: Finished difference Result 46 states and 51 transitions. [2022-03-18 16:56:31,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:56:31,806 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 2 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 46 [2022-03-18 16:56:31,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:56:31,806 INFO L225 Difference]: With dead ends: 46 [2022-03-18 16:56:31,806 INFO L226 Difference]: Without dead ends: 0 [2022-03-18 16:56:31,807 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2022-03-18 16:56:31,807 INFO L912 BasicCegarLoop]: 30 mSDtfsCounter, 23 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-18 16:56:31,808 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [23 Valid, 95 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-18 16:56:31,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-03-18 16:56:31,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-03-18 16:56:31,808 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) [2022-03-18 16:56:31,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-03-18 16:56:31,809 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 46 [2022-03-18 16:56:31,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:56:31,809 INFO L478 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-03-18 16:56:31,809 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 2 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) [2022-03-18 16:56:31,809 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-03-18 16:56:31,809 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-03-18 16:56:31,811 INFO L788 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-03-18 16:56:31,841 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-03-18 16:56:32,025 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-18 16:56:32,028 INFO L718 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1] [2022-03-18 16:56:32,029 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-18 16:56:32,031 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.03 04:56:32 BasicIcfg [2022-03-18 16:56:32,031 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-18 16:56:32,032 INFO L158 Benchmark]: Toolchain (without parser) took 4121.47ms. Allocated memory was 189.8MB in the beginning and 249.6MB in the end (delta: 59.8MB). Free memory was 133.6MB in the beginning and 109.7MB in the end (delta: 23.9MB). Peak memory consumption was 84.8MB. Max. memory is 8.0GB. [2022-03-18 16:56:32,032 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 189.8MB. Free memory is still 149.4MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-18 16:56:32,032 INFO L158 Benchmark]: CACSL2BoogieTranslator took 276.85ms. Allocated memory is still 189.8MB. Free memory was 133.3MB in the beginning and 159.0MB in the end (delta: -25.7MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-03-18 16:56:32,032 INFO L158 Benchmark]: Boogie Preprocessor took 33.81ms. Allocated memory is still 189.8MB. Free memory was 159.0MB in the beginning and 157.6MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-18 16:56:32,033 INFO L158 Benchmark]: RCFGBuilder took 294.11ms. Allocated memory is still 189.8MB. Free memory was 157.6MB in the beginning and 144.9MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-03-18 16:56:32,033 INFO L158 Benchmark]: IcfgTransformer took 22.79ms. Allocated memory is still 189.8MB. Free memory was 144.9MB in the beginning and 143.7MB in the end (delta: 1.2MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-18 16:56:32,034 INFO L158 Benchmark]: TraceAbstraction took 3487.92ms. Allocated memory was 189.8MB in the beginning and 249.6MB in the end (delta: 59.8MB). Free memory was 143.3MB in the beginning and 109.7MB in the end (delta: 33.5MB). Peak memory consumption was 94.2MB. Max. memory is 8.0GB. [2022-03-18 16:56:32,036 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 189.8MB. Free memory is still 149.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 276.85ms. Allocated memory is still 189.8MB. Free memory was 133.3MB in the beginning and 159.0MB in the end (delta: -25.7MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * Boogie Preprocessor took 33.81ms. Allocated memory is still 189.8MB. Free memory was 159.0MB in the beginning and 157.6MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 294.11ms. Allocated memory is still 189.8MB. Free memory was 157.6MB in the beginning and 144.9MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * IcfgTransformer took 22.79ms. Allocated memory is still 189.8MB. Free memory was 144.9MB in the beginning and 143.7MB in the end (delta: 1.2MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * TraceAbstraction took 3487.92ms. Allocated memory was 189.8MB in the beginning and 249.6MB in the end (delta: 59.8MB). Free memory was 143.3MB in the beginning and 109.7MB in the end (delta: 33.5MB). Peak memory consumption was 94.2MB. 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: 20]: 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 4 procedures, 35 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.4s, OverallIterations: 6, TraceHistogramMax: 5, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 259 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 258 mSDsluCounter, 381 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 207 mSDsCounter, 97 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 257 IncrementalHoareTripleChecker+Invalid, 354 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 97 mSolverCounterUnsat, 174 mSDtfsCounter, 257 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 279 GetRequests, 227 SyntacticMatches, 1 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=48occurred in iteration=5, InterpolantAutomatonStates: 34, 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, 6 MinimizatonAttempts, 42 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 358 NumberOfCodeBlocks, 320 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 416 ConstructedInterpolants, 0 QuantifiedInterpolants, 613 SizeOfPredicates, 6 NumberOfNonLiveVariables, 527 ConjunctsInSsa, 21 ConjunctsInUnsatCore, 12 InterpolantComputations, 4 PerfectInterpolantSequences, 207/276 InterpolantCoveringCapability, 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 RESULT: Ultimate proved your program to be correct! [2022-03-18 16:56:32,077 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...