./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/array-memsafety/add_last_unsafe.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cad77814-aea5-45de-9754-0a908d2853bb/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cad77814-aea5-45de-9754-0a908d2853bb/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cad77814-aea5-45de-9754-0a908d2853bb/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cad77814-aea5-45de-9754-0a908d2853bb/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety/add_last_unsafe.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cad77814-aea5-45de-9754-0a908d2853bb/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cad77814-aea5-45de-9754-0a908d2853bb/bin/uautomizer-verify-uCwYo4JHxu --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 48fd0d3fe19d1deb0a082df55a1274a55060d743a98a6889cf18bd32ae5a67a0 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:35:17,397 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:35:17,475 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cad77814-aea5-45de-9754-0a908d2853bb/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-11-19 07:35:17,482 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:35:17,482 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:35:17,509 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:35:17,510 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:35:17,511 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:35:17,512 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:35:17,512 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:35:17,513 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:35:17,514 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:35:17,515 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:35:17,515 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:35:17,516 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:35:17,517 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:35:17,517 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:35:17,518 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:35:17,518 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-19 07:35:17,519 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-19 07:35:17,520 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-19 07:35:17,521 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:35:17,521 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 07:35:17,522 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:35:17,522 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:35:17,523 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:35:17,524 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:35:17,524 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:35:17,525 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:35:17,525 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:35:17,526 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:35:17,527 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:35:17,527 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:35:17,528 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:35:17,528 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:35:17,529 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:35:17,529 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:35:17,529 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:35:17,530 INFO L153 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cad77814-aea5-45de-9754-0a908d2853bb/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cad77814-aea5-45de-9754-0a908d2853bb/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 48fd0d3fe19d1deb0a082df55a1274a55060d743a98a6889cf18bd32ae5a67a0 [2023-11-19 07:35:17,790 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:35:17,825 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:35:17,830 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:35:17,832 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:35:17,833 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:35:17,834 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cad77814-aea5-45de-9754-0a908d2853bb/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/array-memsafety/add_last_unsafe.i [2023-11-19 07:35:21,058 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:35:21,365 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:35:21,365 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cad77814-aea5-45de-9754-0a908d2853bb/sv-benchmarks/c/array-memsafety/add_last_unsafe.i [2023-11-19 07:35:21,380 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cad77814-aea5-45de-9754-0a908d2853bb/bin/uautomizer-verify-uCwYo4JHxu/data/73c992071/df0f9923691241c2afb9c64d210fbcca/FLAG6e79f2a06 [2023-11-19 07:35:21,396 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cad77814-aea5-45de-9754-0a908d2853bb/bin/uautomizer-verify-uCwYo4JHxu/data/73c992071/df0f9923691241c2afb9c64d210fbcca [2023-11-19 07:35:21,399 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:35:21,400 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:35:21,402 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:35:21,402 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:35:21,408 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:35:21,409 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:35:21" (1/1) ... [2023-11-19 07:35:21,410 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d3e1288 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:21, skipping insertion in model container [2023-11-19 07:35:21,410 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:35:21" (1/1) ... [2023-11-19 07:35:21,453 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:35:21,750 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:35:21,766 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:35:21,834 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:35:21,875 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:35:21,875 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:21 WrapperNode [2023-11-19 07:35:21,876 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:35:21,879 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:35:21,879 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:35:21,880 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:35:21,888 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:21" (1/1) ... [2023-11-19 07:35:21,913 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:21" (1/1) ... [2023-11-19 07:35:21,941 INFO L138 Inliner]: procedures = 115, calls = 12, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 57 [2023-11-19 07:35:21,942 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:35:21,943 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:35:21,943 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:35:21,944 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:35:21,953 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:21" (1/1) ... [2023-11-19 07:35:21,955 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:21" (1/1) ... [2023-11-19 07:35:21,971 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:21" (1/1) ... [2023-11-19 07:35:21,972 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:21" (1/1) ... [2023-11-19 07:35:21,977 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:21" (1/1) ... [2023-11-19 07:35:21,987 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:21" (1/1) ... [2023-11-19 07:35:21,989 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:21" (1/1) ... [2023-11-19 07:35:21,995 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:21" (1/1) ... [2023-11-19 07:35:21,997 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:35:22,001 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:35:22,002 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:35:22,002 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:35:22,003 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:21" (1/1) ... [2023-11-19 07:35:22,010 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:35:22,024 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cad77814-aea5-45de-9754-0a908d2853bb/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:35:22,039 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cad77814-aea5-45de-9754-0a908d2853bb/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:35:22,073 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cad77814-aea5-45de-9754-0a908d2853bb/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:35:22,084 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 07:35:22,084 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 07:35:22,085 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 07:35:22,085 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 07:35:22,085 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:35:22,086 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:35:22,193 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:35:22,195 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:35:22,402 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:35:22,410 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:35:22,410 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-19 07:35:22,414 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:35:22 BoogieIcfgContainer [2023-11-19 07:35:22,414 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:35:22,418 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:35:22,418 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:35:22,422 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:35:22,423 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:35:21" (1/3) ... [2023-11-19 07:35:22,424 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e8b12ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:35:22, skipping insertion in model container [2023-11-19 07:35:22,424 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:21" (2/3) ... [2023-11-19 07:35:22,425 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e8b12ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:35:22, skipping insertion in model container [2023-11-19 07:35:22,425 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:35:22" (3/3) ... [2023-11-19 07:35:22,426 INFO L112 eAbstractionObserver]: Analyzing ICFG add_last_unsafe.i [2023-11-19 07:35:22,449 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:35:22,450 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 13 error locations. [2023-11-19 07:35:22,532 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:35:22,541 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=false, mAutomataTypeConcurrency=PETRI_NET, 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@7c9aa7b9, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:35:22,542 INFO L358 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2023-11-19 07:35:22,548 INFO L276 IsEmpty]: Start isEmpty. Operand has 34 states, 20 states have (on average 1.95) internal successors, (39), 33 states have internal predecessors, (39), 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) [2023-11-19 07:35:22,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-19 07:35:22,556 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:35:22,557 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-19 07:35:22,558 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2023-11-19 07:35:22,565 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:35:22,565 INFO L85 PathProgramCache]: Analyzing trace with hash 889508762, now seen corresponding path program 1 times [2023-11-19 07:35:22,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:35:22,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426303007] [2023-11-19 07:35:22,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:35:22,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:35:22,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:35:22,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:35:22,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:35:22,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426303007] [2023-11-19 07:35:22,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1426303007] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:35:22,931 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:35:22,931 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:35:22,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928525871] [2023-11-19 07:35:22,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:35:22,938 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:35:22,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:35:22,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:35:22,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:35:22,975 INFO L87 Difference]: Start difference. First operand has 34 states, 20 states have (on average 1.95) internal successors, (39), 33 states have internal predecessors, (39), 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) Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2023-11-19 07:35:23,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:35:23,043 INFO L93 Difference]: Finished difference Result 34 states and 36 transitions. [2023-11-19 07:35:23,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:35:23,046 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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) Word has length 6 [2023-11-19 07:35:23,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:35:23,063 INFO L225 Difference]: With dead ends: 34 [2023-11-19 07:35:23,064 INFO L226 Difference]: Without dead ends: 32 [2023-11-19 07:35:23,066 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:35:23,075 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 27 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:35:23,077 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 30 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:35:23,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2023-11-19 07:35:23,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2023-11-19 07:35:23,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 19 states have (on average 1.7894736842105263) internal successors, (34), 31 states have internal predecessors, (34), 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) [2023-11-19 07:35:23,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 34 transitions. [2023-11-19 07:35:23,116 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 34 transitions. Word has length 6 [2023-11-19 07:35:23,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:35:23,118 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 34 transitions. [2023-11-19 07:35:23,118 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2023-11-19 07:35:23,118 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 34 transitions. [2023-11-19 07:35:23,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-19 07:35:23,119 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:35:23,119 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:35:23,120 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 07:35:23,121 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2023-11-19 07:35:23,121 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:35:23,122 INFO L85 PathProgramCache]: Analyzing trace with hash 1804968521, now seen corresponding path program 1 times [2023-11-19 07:35:23,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:35:23,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537431442] [2023-11-19 07:35:23,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:35:23,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:35:23,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:35:23,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:35:23,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:35:23,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537431442] [2023-11-19 07:35:23,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [537431442] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:35:23,526 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:35:23,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:35:23,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139095506] [2023-11-19 07:35:23,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:35:23,528 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:35:23,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:35:23,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:35:23,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:35:23,530 INFO L87 Difference]: Start difference. First operand 32 states and 34 transitions. Second operand has 5 states, 4 states have (on average 1.75) internal successors, (7), 5 states have internal predecessors, (7), 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) [2023-11-19 07:35:23,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:35:23,631 INFO L93 Difference]: Finished difference Result 55 states and 58 transitions. [2023-11-19 07:35:23,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:35:23,632 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 5 states have internal predecessors, (7), 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) Word has length 7 [2023-11-19 07:35:23,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:35:23,633 INFO L225 Difference]: With dead ends: 55 [2023-11-19 07:35:23,634 INFO L226 Difference]: Without dead ends: 55 [2023-11-19 07:35:23,634 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:35:23,636 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 96 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:35:23,636 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 36 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:35:23,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2023-11-19 07:35:23,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 29. [2023-11-19 07:35:23,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 19 states have (on average 1.631578947368421) internal successors, (31), 28 states have internal predecessors, (31), 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) [2023-11-19 07:35:23,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 31 transitions. [2023-11-19 07:35:23,643 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 31 transitions. Word has length 7 [2023-11-19 07:35:23,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:35:23,644 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 31 transitions. [2023-11-19 07:35:23,644 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 5 states have internal predecessors, (7), 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) [2023-11-19 07:35:23,644 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 31 transitions. [2023-11-19 07:35:23,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-19 07:35:23,645 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:35:23,645 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:35:23,645 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 07:35:23,646 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2023-11-19 07:35:23,647 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:35:23,647 INFO L85 PathProgramCache]: Analyzing trace with hash 1804968522, now seen corresponding path program 1 times [2023-11-19 07:35:23,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:35:23,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [510143618] [2023-11-19 07:35:23,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:35:23,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:35:23,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:35:23,664 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:35:23,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:35:23,693 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:35:23,694 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 07:35:23,695 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 13 remaining) [2023-11-19 07:35:23,697 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 13 remaining) [2023-11-19 07:35:23,698 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 13 remaining) [2023-11-19 07:35:23,698 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 13 remaining) [2023-11-19 07:35:23,699 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 13 remaining) [2023-11-19 07:35:23,699 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 13 remaining) [2023-11-19 07:35:23,699 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 13 remaining) [2023-11-19 07:35:23,700 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 13 remaining) [2023-11-19 07:35:23,700 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 13 remaining) [2023-11-19 07:35:23,701 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 13 remaining) [2023-11-19 07:35:23,701 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 13 remaining) [2023-11-19 07:35:23,701 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 13 remaining) [2023-11-19 07:35:23,702 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK (0 of 13 remaining) [2023-11-19 07:35:23,702 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 07:35:23,706 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-11-19 07:35:23,711 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 07:35:23,722 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~malloc3 [2023-11-19 07:35:23,723 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~malloc3 [2023-11-19 07:35:23,729 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:35:23 BoogieIcfgContainer [2023-11-19 07:35:23,730 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 07:35:23,731 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 07:35:23,731 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 07:35:23,731 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 07:35:23,732 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:35:22" (3/4) ... [2023-11-19 07:35:23,733 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-19 07:35:23,736 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~malloc3 [2023-11-19 07:35:23,736 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~malloc3 [2023-11-19 07:35:23,771 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cad77814-aea5-45de-9754-0a908d2853bb/bin/uautomizer-verify-uCwYo4JHxu/witness.graphml [2023-11-19 07:35:23,771 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 07:35:23,772 INFO L158 Benchmark]: Toolchain (without parser) took 2371.40ms. Allocated memory was 155.2MB in the beginning and 222.3MB in the end (delta: 67.1MB). Free memory was 107.0MB in the beginning and 145.2MB in the end (delta: -38.2MB). Peak memory consumption was 30.9MB. Max. memory is 16.1GB. [2023-11-19 07:35:23,772 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 155.2MB. Free memory is still 99.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:35:23,773 INFO L158 Benchmark]: CACSL2BoogieTranslator took 474.17ms. Allocated memory is still 155.2MB. Free memory was 106.9MB in the beginning and 90.6MB in the end (delta: 16.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-19 07:35:23,773 INFO L158 Benchmark]: Boogie Procedure Inliner took 63.29ms. Allocated memory is still 155.2MB. Free memory was 90.6MB in the beginning and 89.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:35:23,774 INFO L158 Benchmark]: Boogie Preprocessor took 57.35ms. Allocated memory is still 155.2MB. Free memory was 88.6MB in the beginning and 87.5MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:35:23,774 INFO L158 Benchmark]: RCFGBuilder took 413.43ms. Allocated memory is still 155.2MB. Free memory was 87.5MB in the beginning and 74.9MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-19 07:35:23,775 INFO L158 Benchmark]: TraceAbstraction took 1311.79ms. Allocated memory was 155.2MB in the beginning and 222.3MB in the end (delta: 67.1MB). Free memory was 74.5MB in the beginning and 147.3MB in the end (delta: -72.8MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:35:23,775 INFO L158 Benchmark]: Witness Printer took 40.48ms. Allocated memory is still 222.3MB. Free memory was 147.3MB in the beginning and 145.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:35:23,778 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 155.2MB. Free memory is still 99.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 474.17ms. Allocated memory is still 155.2MB. Free memory was 106.9MB in the beginning and 90.6MB in the end (delta: 16.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 63.29ms. Allocated memory is still 155.2MB. Free memory was 90.6MB in the beginning and 89.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 57.35ms. Allocated memory is still 155.2MB. Free memory was 88.6MB in the beginning and 87.5MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 413.43ms. Allocated memory is still 155.2MB. Free memory was 87.5MB in the beginning and 74.9MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 1311.79ms. Allocated memory was 155.2MB in the beginning and 222.3MB in the end (delta: 67.1MB). Free memory was 74.5MB in the beginning and 147.3MB in the end (delta: -72.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 40.48ms. Allocated memory is still 222.3MB. Free memory was 147.3MB in the beginning and 145.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~malloc3 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~malloc3 - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~malloc3 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~malloc3 - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * 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: -1]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L513] int i, j; [L514] int length = __VERIFIER_nondet_int(); [L515] COND TRUE length < 1 [L515] length = 1 VAL [length=1] [L516] int *arr = __builtin_alloca (length); VAL [arr={2:0}, length=1] [L517] COND FALSE !(!arr) [L518] int *a = arr; [L520] int k = 0; VAL [a={2:0}, arr={2:0}, k=0, length=1] [L520] COND TRUE k < length [L522] arr[k] = __VERIFIER_nondet_int() - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 512]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 34 locations, 13 error locations. Started 1 CEGAR loops. OverallTime: 1.2s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 123 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 123 mSDsluCounter, 66 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 27 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 70 IncrementalHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 39 mSDtfsCounter, 70 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34occurred in iteration=0, InterpolantAutomatonStates: 8, 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, 2 MinimizatonAttempts, 26 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 44 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 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! [2023-11-19 07:35:23,820 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cad77814-aea5-45de-9754-0a908d2853bb/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-deref)