/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -tc ../../../trunk/examples/toolchains/AutomizerC.xml -i ../sv-benchmarks/c/recursive/BallRajamani-SPIN2000-Fig1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-03-31 01:19:16,162 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-03-31 01:19:16,169 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-03-31 01:19:16,204 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2023-03-31 01:19:16,221 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-03-31 01:19:16,224 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-03-31 01:19:16,225 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-03-31 01:19:16,227 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-03-31 01:19:16,228 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-03-31 01:19:16,229 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-03-31 01:19:16,231 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-03-31 01:19:16,235 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-03-31 01:19:16,236 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-03-31 01:19:16,237 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-03-31 01:19:16,238 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-03-31 01:19:16,239 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-03-31 01:19:16,246 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2023-03-31 01:19:16,254 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-03-31 01:19:16,254 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-03-31 01:19:16,255 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-03-31 01:19:16,256 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-03-31 01:19:16,280 INFO L113 SettingsManager]: Loading preferences was successful [2023-03-31 01:19:16,280 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-03-31 01:19:16,280 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-03-31 01:19:16,280 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-03-31 01:19:16,281 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-03-31 01:19:16,281 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-03-31 01:19:16,282 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-03-31 01:19:16,282 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-03-31 01:19:16,282 INFO L138 SettingsManager]: * Use SBE=true [2023-03-31 01:19:16,282 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-03-31 01:19:16,282 INFO L138 SettingsManager]: * sizeof long=4 [2023-03-31 01:19:16,282 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-03-31 01:19:16,282 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-03-31 01:19:16,282 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-03-31 01:19:16,283 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-03-31 01:19:16,283 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-03-31 01:19:16,283 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-03-31 01:19:16,283 INFO L138 SettingsManager]: * sizeof long double=12 [2023-03-31 01:19:16,283 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-03-31 01:19:16,283 INFO L138 SettingsManager]: * Use constant arrays=true [2023-03-31 01:19:16,283 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-03-31 01:19:16,283 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-03-31 01:19:16,284 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-03-31 01:19:16,284 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-03-31 01:19:16,284 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 01:19:16,284 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-03-31 01:19:16,284 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-03-31 01:19:16,284 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-03-31 01:19:16,284 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-03-31 01:19:16,284 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-03-31 01:19:16,285 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-03-31 01:19:16,285 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-03-31 01:19:16,285 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-03-31 01:19:16,285 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-03-31 01:19:16,285 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-03-31 01:19:16,285 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-03-31 01:19:16,511 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-03-31 01:19:16,542 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-03-31 01:19:16,545 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-03-31 01:19:16,546 INFO L271 PluginConnector]: Initializing CDTParser... [2023-03-31 01:19:16,546 INFO L275 PluginConnector]: CDTParser initialized [2023-03-31 01:19:16,547 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/recursive/BallRajamani-SPIN2000-Fig1.c [2023-03-31 01:19:17,783 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-03-31 01:19:17,967 INFO L351 CDTParser]: Found 1 translation units. [2023-03-31 01:19:17,968 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive/BallRajamani-SPIN2000-Fig1.c [2023-03-31 01:19:17,975 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/97fc29b6b/9a6c7a862f0049eca63805bb7fb3ab2c/FLAGb21dbae26 [2023-03-31 01:19:17,989 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/97fc29b6b/9a6c7a862f0049eca63805bb7fb3ab2c [2023-03-31 01:19:17,991 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-03-31 01:19:17,992 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-03-31 01:19:17,996 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-03-31 01:19:17,996 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-03-31 01:19:17,999 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-03-31 01:19:18,000 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 01:19:17" (1/1) ... [2023-03-31 01:19:18,000 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60c5ca5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:19:18, skipping insertion in model container [2023-03-31 01:19:18,001 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 01:19:17" (1/1) ... [2023-03-31 01:19:18,007 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-03-31 01:19:18,019 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-03-31 01:19:18,145 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive/BallRajamani-SPIN2000-Fig1.c[718,731] [2023-03-31 01:19:18,149 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 01:19:18,163 INFO L203 MainTranslator]: Completed pre-run [2023-03-31 01:19:18,177 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive/BallRajamani-SPIN2000-Fig1.c[718,731] [2023-03-31 01:19:18,177 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 01:19:18,190 INFO L208 MainTranslator]: Completed translation [2023-03-31 01:19:18,191 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:19:18 WrapperNode [2023-03-31 01:19:18,191 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-03-31 01:19:18,192 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-03-31 01:19:18,192 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-03-31 01:19:18,192 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-03-31 01:19:18,200 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:19:18" (1/1) ... [2023-03-31 01:19:18,201 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:19:18" (1/1) ... [2023-03-31 01:19:18,205 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:19:18" (1/1) ... [2023-03-31 01:19:18,205 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:19:18" (1/1) ... [2023-03-31 01:19:18,209 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:19:18" (1/1) ... [2023-03-31 01:19:18,210 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:19:18" (1/1) ... [2023-03-31 01:19:18,211 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:19:18" (1/1) ... [2023-03-31 01:19:18,211 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:19:18" (1/1) ... [2023-03-31 01:19:18,213 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-03-31 01:19:18,214 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-03-31 01:19:18,214 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-03-31 01:19:18,214 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-03-31 01:19:18,215 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:19:18" (1/1) ... [2023-03-31 01:19:18,221 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 01:19:18,229 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 01:19:18,241 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) [2023-03-31 01:19:18,250 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 [2023-03-31 01:19:18,282 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-03-31 01:19:18,283 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-03-31 01:19:18,283 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-03-31 01:19:18,283 INFO L138 BoogieDeclarations]: Found implementation of procedure A [2023-03-31 01:19:18,283 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-03-31 01:19:18,283 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-03-31 01:19:18,283 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-03-31 01:19:18,284 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-03-31 01:19:18,284 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-03-31 01:19:18,284 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-03-31 01:19:18,284 INFO L130 BoogieDeclarations]: Found specification of procedure A [2023-03-31 01:19:18,284 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-03-31 01:19:18,284 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-03-31 01:19:18,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-03-31 01:19:18,284 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-03-31 01:19:18,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-03-31 01:19:18,285 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-03-31 01:19:18,285 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-03-31 01:19:18,336 INFO L236 CfgBuilder]: Building ICFG [2023-03-31 01:19:18,338 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-03-31 01:19:18,451 INFO L277 CfgBuilder]: Performing block encoding [2023-03-31 01:19:18,458 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-03-31 01:19:18,458 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-03-31 01:19:18,460 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 01:19:18 BoogieIcfgContainer [2023-03-31 01:19:18,460 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-03-31 01:19:18,469 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-03-31 01:19:18,470 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-03-31 01:19:18,472 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-03-31 01:19:18,473 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.03 01:19:17" (1/3) ... [2023-03-31 01:19:18,473 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@450da1da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.03 01:19:18, skipping insertion in model container [2023-03-31 01:19:18,473 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:19:18" (2/3) ... [2023-03-31 01:19:18,474 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@450da1da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.03 01:19:18, skipping insertion in model container [2023-03-31 01:19:18,474 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 01:19:18" (3/3) ... [2023-03-31 01:19:18,475 INFO L112 eAbstractionObserver]: Analyzing ICFG BallRajamani-SPIN2000-Fig1.c [2023-03-31 01:19:18,493 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-03-31 01:19:18,493 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-03-31 01:19:18,567 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-03-31 01:19:18,578 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2d563d1b, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-03-31 01:19:18,579 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-03-31 01:19:18,583 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 14 states have internal predecessors, (16), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-03-31 01:19:18,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-03-31 01:19:18,592 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:19:18,592 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 01:19:18,594 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:19:18,603 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:19:18,603 INFO L85 PathProgramCache]: Analyzing trace with hash 2102697119, now seen corresponding path program 1 times [2023-03-31 01:19:18,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:19:18,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676608455] [2023-03-31 01:19:18,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:19:18,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:19:18,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:19:18,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:19:18,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:19:19,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:19:19,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:19:19,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 01:19:19,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:19:19,059 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-03-31 01:19:19,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:19:19,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676608455] [2023-03-31 01:19:19,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1676608455] provided 0 perfect and 1 imperfect interpolant sequences [2023-03-31 01:19:19,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [211180550] [2023-03-31 01:19:19,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:19:19,061 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-31 01:19:19,061 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 01:19:19,066 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) [2023-03-31 01:19:19,068 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-03-31 01:19:19,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:19:19,189 INFO L262 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 7 conjunts are in the unsatisfiable core [2023-03-31 01:19:19,194 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-03-31 01:19:19,315 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-03-31 01:19:19,316 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-03-31 01:19:19,437 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-03-31 01:19:19,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [211180550] provided 0 perfect and 2 imperfect interpolant sequences [2023-03-31 01:19:19,438 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-03-31 01:19:19,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 5] total 8 [2023-03-31 01:19:19,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624588140] [2023-03-31 01:19:19,441 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-03-31 01:19:19,447 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-03-31 01:19:19,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:19:19,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-03-31 01:19:19,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-03-31 01:19:19,494 INFO L87 Difference]: Start difference. First operand has 23 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 14 states have internal predecessors, (16), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 8 states, 8 states have (on average 2.25) internal successors, (18), 6 states have internal predecessors, (18), 2 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-03-31 01:19:19,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:19:19,636 INFO L93 Difference]: Finished difference Result 45 states and 55 transitions. [2023-03-31 01:19:19,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-03-31 01:19:19,639 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.25) internal successors, (18), 6 states have internal predecessors, (18), 2 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 20 [2023-03-31 01:19:19,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:19:19,645 INFO L225 Difference]: With dead ends: 45 [2023-03-31 01:19:19,645 INFO L226 Difference]: Without dead ends: 21 [2023-03-31 01:19:19,647 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 41 SyntacticMatches, 3 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2023-03-31 01:19:19,650 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 11 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-03-31 01:19:19,651 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 68 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-03-31 01:19:19,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2023-03-31 01:19:19,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2023-03-31 01:19:19,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 12 states have (on average 1.0833333333333333) internal successors, (13), 13 states have internal predecessors, (13), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2023-03-31 01:19:19,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 23 transitions. [2023-03-31 01:19:19,684 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 23 transitions. Word has length 20 [2023-03-31 01:19:19,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:19:19,685 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 23 transitions. [2023-03-31 01:19:19,685 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.25) internal successors, (18), 6 states have internal predecessors, (18), 2 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-03-31 01:19:19,685 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 23 transitions. [2023-03-31 01:19:19,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-03-31 01:19:19,687 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:19:19,687 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 01:19:19,693 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-03-31 01:19:19,893 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-03-31 01:19:19,894 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:19:19,894 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:19:19,895 INFO L85 PathProgramCache]: Analyzing trace with hash 1985317331, now seen corresponding path program 1 times [2023-03-31 01:19:19,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:19:19,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [994578477] [2023-03-31 01:19:19,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:19:19,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:19:19,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-03-31 01:19:19,925 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-03-31 01:19:19,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-03-31 01:19:19,964 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-03-31 01:19:19,964 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-03-31 01:19:19,965 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location mainErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-03-31 01:19:19,967 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-03-31 01:19:19,970 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-03-31 01:19:19,973 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-03-31 01:19:19,995 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.03 01:19:19 BoogieIcfgContainer [2023-03-31 01:19:19,995 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-03-31 01:19:19,995 INFO L158 Benchmark]: Toolchain (without parser) took 2003.20ms. Allocated memory is still 227.5MB. Free memory was 179.6MB in the beginning and 175.4MB in the end (delta: 4.3MB). Peak memory consumption was 5.3MB. Max. memory is 8.0GB. [2023-03-31 01:19:19,996 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 184.5MB. Free memory is still 130.1MB. There was no memory consumed. Max. memory is 8.0GB. [2023-03-31 01:19:19,996 INFO L158 Benchmark]: CACSL2BoogieTranslator took 194.93ms. Allocated memory is still 227.5MB. Free memory was 179.6MB in the beginning and 169.7MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2023-03-31 01:19:19,997 INFO L158 Benchmark]: Boogie Preprocessor took 21.11ms. Allocated memory is still 227.5MB. Free memory was 169.7MB in the beginning and 168.6MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-03-31 01:19:19,997 INFO L158 Benchmark]: RCFGBuilder took 246.29ms. Allocated memory is still 227.5MB. Free memory was 168.1MB in the beginning and 158.1MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2023-03-31 01:19:19,997 INFO L158 Benchmark]: TraceAbstraction took 1525.38ms. Allocated memory is still 227.5MB. Free memory was 157.1MB in the beginning and 175.4MB in the end (delta: -18.3MB). There was no memory consumed. Max. memory is 8.0GB. [2023-03-31 01:19:19,999 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 184.5MB. Free memory is still 130.1MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 194.93ms. Allocated memory is still 227.5MB. Free memory was 179.6MB in the beginning and 169.7MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * Boogie Preprocessor took 21.11ms. Allocated memory is still 227.5MB. Free memory was 169.7MB in the beginning and 168.6MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 246.29ms. Allocated memory is still 227.5MB. Free memory was 168.1MB in the beginning and 158.1MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * TraceAbstraction took 1525.38ms. Allocated memory is still 227.5MB. Free memory was 157.1MB in the beginning and 175.4MB in the end (delta: -18.3MB). There was no memory consumed. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 33]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L16] int g; VAL [\old(g)=51, g=0] [L28] int g = __VERIFIER_nondet_int(); [L29] int h = !g; VAL [\old(g)=0, g=-1, g=0, h=0] [L30] CALL A(g,h) VAL [\old(a1)=-1, \old(a2)=0, \old(g)=0, g=0] [L19] COND TRUE \read(a1) VAL [\old(a1)=-1, \old(a2)=0, \old(g)=0, a1=-1, a2=0, g=0] [L20] CALL A(a2,a1) VAL [\old(a1)=0, \old(a2)=-1, \old(g)=0, g=0] [L19] COND FALSE !(\read(a1)) [L22] g = a2 VAL [\old(a1)=0, \old(a2)=-1, \old(g)=0, a1=0, a2=-1, g=-1] [L20] RET A(a2,a1) VAL [A(a2,a1)=-2, \old(a1)=-1, \old(a2)=0, \old(g)=0, a1=-1, a2=0, g=-1] [L30] RET A(g,h) VAL [A(g,h)=-3, \old(g)=0, g=-1, g=-1, h=0] [L31] CALL A(g,h) VAL [\old(a1)=-1, \old(a2)=0, \old(g)=-1, g=-1] [L19] COND TRUE \read(a1) VAL [\old(a1)=-1, \old(a2)=0, \old(g)=-1, a1=-1, a2=0, g=-1] [L20] CALL A(a2,a1) VAL [\old(a1)=0, \old(a2)=-1, \old(g)=-1, g=-1] [L19] COND FALSE !(\read(a1)) [L22] g = a2 VAL [\old(a1)=0, \old(a2)=-1, \old(g)=-1, a1=0, a2=-1, g=-1] [L20] RET A(a2,a1) VAL [A(a2,a1)=4, \old(a1)=-1, \old(a2)=0, \old(g)=-1, a1=-1, a2=0, g=-1] [L31] RET A(g,h) VAL [A(g,h)=-4, \old(g)=0, g=-1, g=-1, h=0] [L32] COND TRUE \read(g) VAL [\old(g)=0, g=-1, g=-1, h=0] [L33] reach_error() VAL [\old(g)=0, g=-1, g=-1, h=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 26 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.4s, OverallIterations: 2, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 11 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 11 mSDsluCounter, 68 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 53 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 63 IncrementalHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 15 mSDtfsCounter, 63 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 54 GetRequests, 41 SyntacticMatches, 3 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=0, InterpolantAutomatonStates: 9, 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: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 72 NumberOfCodeBlocks, 72 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 57 ConstructedInterpolants, 0 QuantifiedInterpolants, 189 SizeOfPredicates, 2 NumberOfNonLiveVariables, 97 ConjunctsInSsa, 7 ConjunctsInUnsatCore, 3 InterpolantComputations, 0 PerfectInterpolantSequences, 3/12 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 RESULT: Ultimate proved your program to be incorrect! [2023-03-31 01:19:20,018 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...