./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/valid-memsafety.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/list-ext-properties/test-0158_1-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/list-ext-properties/test-0158_1-2.i -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux --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 7140a276a0ca1ba8339f047ca5220394bc3f48542635b8ad8e347c34fb7ba260 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 17:54:55,553 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 17:54:55,621 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-10-11 17:54:55,627 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 17:54:55,627 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 17:54:55,652 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 17:54:55,654 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 17:54:55,654 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 17:54:55,655 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 17:54:55,657 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 17:54:55,657 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 17:54:55,657 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 17:54:55,658 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 17:54:55,658 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 17:54:55,658 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 17:54:55,658 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 17:54:55,662 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 17:54:55,662 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 17:54:55,662 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 17:54:55,662 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 17:54:55,662 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-11 17:54:55,663 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-11 17:54:55,663 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-11 17:54:55,663 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 17:54:55,663 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-11 17:54:55,663 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 17:54:55,664 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-11 17:54:55,664 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 17:54:55,664 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 17:54:55,665 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 17:54:55,666 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 17:54:55,666 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 17:54:55,666 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 17:54:55,666 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 17:54:55,666 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 17:54:55,666 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 17:54:55,667 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 17:54:55,667 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 17:54:55,667 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 17:54:55,667 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 17:54:55,667 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 17:54:55,668 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 17:54:55,668 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:/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7140a276a0ca1ba8339f047ca5220394bc3f48542635b8ad8e347c34fb7ba260 [2024-10-11 17:54:55,892 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 17:54:55,927 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 17:54:55,929 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 17:54:55,930 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 17:54:55,933 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 17:54:55,934 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/list-ext-properties/test-0158_1-2.i [2024-10-11 17:54:57,245 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 17:54:57,446 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 17:54:57,447 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/list-ext-properties/test-0158_1-2.i [2024-10-11 17:54:57,457 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/f27ae0146/87a9bdd4137e4678a48b5858d8bb91fc/FLAG2c5123940 [2024-10-11 17:54:57,469 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/f27ae0146/87a9bdd4137e4678a48b5858d8bb91fc [2024-10-11 17:54:57,472 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 17:54:57,474 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 17:54:57,474 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 17:54:57,476 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 17:54:57,480 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 17:54:57,481 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 05:54:57" (1/1) ... [2024-10-11 17:54:57,482 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@378ae31c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:54:57, skipping insertion in model container [2024-10-11 17:54:57,482 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 05:54:57" (1/1) ... [2024-10-11 17:54:57,512 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 17:54:57,802 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 17:54:57,812 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 17:54:57,860 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 17:54:57,891 INFO L204 MainTranslator]: Completed translation [2024-10-11 17:54:57,892 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:54:57 WrapperNode [2024-10-11 17:54:57,892 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 17:54:57,893 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 17:54:57,893 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 17:54:57,894 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 17:54:57,900 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:54:57" (1/1) ... [2024-10-11 17:54:57,914 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:54:57" (1/1) ... [2024-10-11 17:54:57,929 INFO L138 Inliner]: procedures = 124, calls = 15, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 30 [2024-10-11 17:54:57,930 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 17:54:57,930 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 17:54:57,930 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 17:54:57,930 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 17:54:57,951 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:54:57" (1/1) ... [2024-10-11 17:54:57,951 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:54:57" (1/1) ... [2024-10-11 17:54:57,957 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:54:57" (1/1) ... [2024-10-11 17:54:57,972 INFO L175 MemorySlicer]: Split 7 memory accesses to 2 slices as follows [2, 5]. 71 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 4 writes are split as follows [0, 4]. [2024-10-11 17:54:57,972 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:54:57" (1/1) ... [2024-10-11 17:54:57,973 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:54:57" (1/1) ... [2024-10-11 17:54:57,977 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:54:57" (1/1) ... [2024-10-11 17:54:57,978 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:54:57" (1/1) ... [2024-10-11 17:54:57,979 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:54:57" (1/1) ... [2024-10-11 17:54:57,979 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:54:57" (1/1) ... [2024-10-11 17:54:57,985 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 17:54:57,986 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 17:54:57,986 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 17:54:57,986 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 17:54:57,986 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:54:57" (1/1) ... [2024-10-11 17:54:57,993 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 17:54:58,003 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 17:54:58,020 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 17:54:58,027 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 17:54:58,068 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-11 17:54:58,068 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-11 17:54:58,069 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-11 17:54:58,069 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-11 17:54:58,069 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-11 17:54:58,069 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 17:54:58,069 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-10-11 17:54:58,069 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-10-11 17:54:58,069 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-11 17:54:58,070 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-11 17:54:58,070 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-11 17:54:58,070 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-11 17:54:58,070 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 17:54:58,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 17:54:58,155 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 17:54:58,157 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 17:54:58,271 INFO L? ?]: Removed 22 outVars from TransFormulas that were not future-live. [2024-10-11 17:54:58,272 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 17:54:58,291 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 17:54:58,291 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-11 17:54:58,292 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 05:54:58 BoogieIcfgContainer [2024-10-11 17:54:58,292 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 17:54:58,294 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 17:54:58,294 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 17:54:58,297 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 17:54:58,297 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 05:54:57" (1/3) ... [2024-10-11 17:54:58,298 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57a0521d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 05:54:58, skipping insertion in model container [2024-10-11 17:54:58,298 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:54:57" (2/3) ... [2024-10-11 17:54:58,298 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57a0521d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 05:54:58, skipping insertion in model container [2024-10-11 17:54:58,298 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 05:54:58" (3/3) ... [2024-10-11 17:54:58,299 INFO L112 eAbstractionObserver]: Analyzing ICFG test-0158_1-2.i [2024-10-11 17:54:58,313 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 17:54:58,314 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2024-10-11 17:54:58,352 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 17:54:58,358 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=None, 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;@59b20cca, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 17:54:58,358 INFO L334 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2024-10-11 17:54:58,361 INFO L276 IsEmpty]: Start isEmpty. Operand has 22 states, 10 states have (on average 2.3) internal successors, (23), 21 states have internal predecessors, (23), 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) [2024-10-11 17:54:58,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2024-10-11 17:54:58,366 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 17:54:58,367 INFO L215 NwaCegarLoop]: trace histogram [1, 1] [2024-10-11 17:54:58,367 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2024-10-11 17:54:58,371 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:54:58,372 INFO L85 PathProgramCache]: Analyzing trace with hash 2081, now seen corresponding path program 1 times [2024-10-11 17:54:58,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:54:58,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115717637] [2024-10-11 17:54:58,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:54:58,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:54:58,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:54:58,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:54:58,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:54:58,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1115717637] [2024-10-11 17:54:58,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1115717637] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:54:58,591 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:54:58,591 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-11 17:54:58,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97533944] [2024-10-11 17:54:58,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:54:58,609 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 17:54:58,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:54:58,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 17:54:58,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 17:54:58,649 INFO L87 Difference]: Start difference. First operand has 22 states, 10 states have (on average 2.3) internal successors, (23), 21 states have internal predecessors, (23), 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, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2024-10-11 17:54:58,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 17:54:58,721 INFO L93 Difference]: Finished difference Result 17 states and 18 transitions. [2024-10-11 17:54:58,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 17:54:58,727 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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 2 [2024-10-11 17:54:58,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 17:54:58,736 INFO L225 Difference]: With dead ends: 17 [2024-10-11 17:54:58,739 INFO L226 Difference]: Without dead ends: 16 [2024-10-11 17:54:58,741 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 17:54:58,743 INFO L432 NwaCegarLoop]: 5 mSDtfsCounter, 9 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 17:54:58,749 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 5 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 17:54:58,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2024-10-11 17:54:58,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2024-10-11 17:54:58,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 10 states have (on average 1.7) internal successors, (17), 15 states have internal predecessors, (17), 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) [2024-10-11 17:54:58,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions. [2024-10-11 17:54:58,853 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 17 transitions. Word has length 2 [2024-10-11 17:54:58,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 17:54:58,854 INFO L471 AbstractCegarLoop]: Abstraction has 16 states and 17 transitions. [2024-10-11 17:54:58,854 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2024-10-11 17:54:58,854 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2024-10-11 17:54:58,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2024-10-11 17:54:58,854 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 17:54:58,854 INFO L215 NwaCegarLoop]: trace histogram [1, 1] [2024-10-11 17:54:58,854 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 17:54:58,854 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2024-10-11 17:54:58,855 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:54:58,855 INFO L85 PathProgramCache]: Analyzing trace with hash 2082, now seen corresponding path program 1 times [2024-10-11 17:54:58,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:54:58,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600083689] [2024-10-11 17:54:58,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:54:58,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:54:58,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:54:59,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:54:59,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:54:59,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600083689] [2024-10-11 17:54:59,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [600083689] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:54:59,077 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:54:59,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-11 17:54:59,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267618726] [2024-10-11 17:54:59,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:54:59,078 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 17:54:59,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:54:59,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 17:54:59,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 17:54:59,079 INFO L87 Difference]: Start difference. First operand 16 states and 17 transitions. Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2024-10-11 17:54:59,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 17:54:59,110 INFO L93 Difference]: Finished difference Result 12 states and 13 transitions. [2024-10-11 17:54:59,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 17:54:59,110 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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 2 [2024-10-11 17:54:59,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 17:54:59,111 INFO L225 Difference]: With dead ends: 12 [2024-10-11 17:54:59,111 INFO L226 Difference]: Without dead ends: 12 [2024-10-11 17:54:59,111 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 17:54:59,112 INFO L432 NwaCegarLoop]: 5 mSDtfsCounter, 8 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 17:54:59,113 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 6 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 17:54:59,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2024-10-11 17:54:59,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 11. [2024-10-11 17:54:59,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 10 states have (on average 1.2) internal successors, (12), 10 states have internal predecessors, (12), 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) [2024-10-11 17:54:59,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 12 transitions. [2024-10-11 17:54:59,117 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 12 transitions. Word has length 2 [2024-10-11 17:54:59,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 17:54:59,118 INFO L471 AbstractCegarLoop]: Abstraction has 11 states and 12 transitions. [2024-10-11 17:54:59,118 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2024-10-11 17:54:59,118 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 12 transitions. [2024-10-11 17:54:59,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-10-11 17:54:59,118 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 17:54:59,118 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:54:59,118 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 17:54:59,119 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2024-10-11 17:54:59,120 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:54:59,120 INFO L85 PathProgramCache]: Analyzing trace with hash 437069424, now seen corresponding path program 1 times [2024-10-11 17:54:59,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:54:59,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429967745] [2024-10-11 17:54:59,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:54:59,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:54:59,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:54:59,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:54:59,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:54:59,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [429967745] [2024-10-11 17:54:59,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [429967745] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:54:59,248 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:54:59,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 17:54:59,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367821720] [2024-10-11 17:54:59,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:54:59,248 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 17:54:59,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:54:59,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 17:54:59,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 17:54:59,249 INFO L87 Difference]: Start difference. First operand 11 states and 12 transitions. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 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) [2024-10-11 17:54:59,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 17:54:59,282 INFO L93 Difference]: Finished difference Result 14 states and 15 transitions. [2024-10-11 17:54:59,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 17:54:59,283 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 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 8 [2024-10-11 17:54:59,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 17:54:59,283 INFO L225 Difference]: With dead ends: 14 [2024-10-11 17:54:59,284 INFO L226 Difference]: Without dead ends: 14 [2024-10-11 17:54:59,284 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-11 17:54:59,285 INFO L432 NwaCegarLoop]: 7 mSDtfsCounter, 2 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 17:54:59,285 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 18 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 17:54:59,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2024-10-11 17:54:59,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 13. [2024-10-11 17:54:59,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 12 states have internal predecessors, (14), 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) [2024-10-11 17:54:59,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2024-10-11 17:54:59,287 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 8 [2024-10-11 17:54:59,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 17:54:59,288 INFO L471 AbstractCegarLoop]: Abstraction has 13 states and 14 transitions. [2024-10-11 17:54:59,288 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 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) [2024-10-11 17:54:59,288 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2024-10-11 17:54:59,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-10-11 17:54:59,288 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 17:54:59,288 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:54:59,288 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-11 17:54:59,289 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2024-10-11 17:54:59,289 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:54:59,289 INFO L85 PathProgramCache]: Analyzing trace with hash 584832784, now seen corresponding path program 1 times [2024-10-11 17:54:59,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:54:59,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566184703] [2024-10-11 17:54:59,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:54:59,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:54:59,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-11 17:54:59,304 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-11 17:54:59,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-11 17:54:59,325 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-11 17:54:59,325 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-11 17:54:59,326 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK (10 of 11 remaining) [2024-10-11 17:54:59,327 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 11 remaining) [2024-10-11 17:54:59,327 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 11 remaining) [2024-10-11 17:54:59,328 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 11 remaining) [2024-10-11 17:54:59,328 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 11 remaining) [2024-10-11 17:54:59,328 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 11 remaining) [2024-10-11 17:54:59,328 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 11 remaining) [2024-10-11 17:54:59,328 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 11 remaining) [2024-10-11 17:54:59,328 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 11 remaining) [2024-10-11 17:54:59,329 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 11 remaining) [2024-10-11 17:54:59,329 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 11 remaining) [2024-10-11 17:54:59,329 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-11 17:54:59,331 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-10-11 17:54:59,343 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-11 17:54:59,346 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 05:54:59 BoogieIcfgContainer [2024-10-11 17:54:59,346 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-11 17:54:59,346 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-11 17:54:59,346 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-11 17:54:59,346 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-11 17:54:59,347 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 05:54:58" (3/4) ... [2024-10-11 17:54:59,348 INFO L142 WitnessPrinter]: No result that supports witness generation found [2024-10-11 17:54:59,349 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-11 17:54:59,349 INFO L158 Benchmark]: Toolchain (without parser) took 1875.89ms. Allocated memory was 146.8MB in the beginning and 176.2MB in the end (delta: 29.4MB). Free memory was 75.2MB in the beginning and 107.3MB in the end (delta: -32.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-11 17:54:59,350 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 146.8MB. Free memory is still 99.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-11 17:54:59,350 INFO L158 Benchmark]: CACSL2BoogieTranslator took 417.52ms. Allocated memory was 146.8MB in the beginning and 176.2MB in the end (delta: 29.4MB). Free memory was 75.1MB in the beginning and 141.2MB in the end (delta: -66.2MB). Peak memory consumption was 17.2MB. Max. memory is 16.1GB. [2024-10-11 17:54:59,350 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.14ms. Allocated memory is still 176.2MB. Free memory was 141.2MB in the beginning and 140.2MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-11 17:54:59,350 INFO L158 Benchmark]: Boogie Preprocessor took 54.62ms. Allocated memory is still 176.2MB. Free memory was 140.2MB in the beginning and 138.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-11 17:54:59,351 INFO L158 Benchmark]: RCFGBuilder took 306.58ms. Allocated memory is still 176.2MB. Free memory was 138.1MB in the beginning and 123.4MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-10-11 17:54:59,351 INFO L158 Benchmark]: TraceAbstraction took 1051.88ms. Allocated memory is still 176.2MB. Free memory was 122.4MB in the beginning and 107.3MB in the end (delta: 15.1MB). Peak memory consumption was 14.1MB. Max. memory is 16.1GB. [2024-10-11 17:54:59,351 INFO L158 Benchmark]: Witness Printer took 2.88ms. Allocated memory is still 176.2MB. Free memory is still 107.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-11 17:54:59,352 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 146.8MB. Free memory is still 99.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 417.52ms. Allocated memory was 146.8MB in the beginning and 176.2MB in the end (delta: 29.4MB). Free memory was 75.1MB in the beginning and 141.2MB in the end (delta: -66.2MB). Peak memory consumption was 17.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.14ms. Allocated memory is still 176.2MB. Free memory was 141.2MB in the beginning and 140.2MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 54.62ms. Allocated memory is still 176.2MB. Free memory was 140.2MB in the beginning and 138.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 306.58ms. Allocated memory is still 176.2MB. Free memory was 138.1MB in the beginning and 123.4MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1051.88ms. Allocated memory is still 176.2MB. Free memory was 122.4MB in the beginning and 107.3MB in the end (delta: 15.1MB). Peak memory consumption was 14.1MB. Max. memory is 16.1GB. * Witness Printer took 2.88ms. Allocated memory is still 176.2MB. Free memory is still 107.3MB. There was no memory consumed. Max. memory is 16.1GB. * 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 - UnprovableResult [Line: 524]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 524. Possible FailurePath: [L526-L533] union { void *p0; struct { char c[2]; int p1; int p2; } str; } data; [L534] data.p0 = malloc(37U) [L535] COND FALSE !(__VERIFIER_nondet_int()) [L538] data.str.p2 = 30 [L540] EXPR data.str.p2 [L540] COND FALSE !(25 > data.str.p2) [L543] return 0; [L543] return 0; VAL [\result=0] - 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. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 22 locations, 11 error locations. Started 1 CEGAR loops. OverallTime: 1.0s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 19 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 19 mSDsluCounter, 29 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 12 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 47 IncrementalHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 17 mSDtfsCounter, 47 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred in iteration=0, InterpolantAutomatonStates: 10, 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, 3 MinimizatonAttempts, 2 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 31 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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 could not prove your program: unable to determine feasibility of some traces [2024-10-11 17:54:59,374 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/list-ext-properties/test-0158_1-2.i -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux --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 7140a276a0ca1ba8339f047ca5220394bc3f48542635b8ad8e347c34fb7ba260 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 17:55:02,156 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 17:55:02,237 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2024-10-11 17:55:02,245 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 17:55:02,245 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 17:55:02,289 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 17:55:02,290 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 17:55:02,290 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 17:55:02,291 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 17:55:02,291 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 17:55:02,291 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 17:55:02,291 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 17:55:02,292 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 17:55:02,292 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 17:55:02,292 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 17:55:02,292 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 17:55:02,293 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 17:55:02,293 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 17:55:02,299 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 17:55:02,299 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 17:55:02,299 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-11 17:55:02,301 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-11 17:55:02,301 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-11 17:55:02,301 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 17:55:02,302 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-11 17:55:02,302 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-10-11 17:55:02,302 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 17:55:02,302 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-10-11 17:55:02,302 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-11 17:55:02,302 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 17:55:02,302 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 17:55:02,303 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 17:55:02,303 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 17:55:02,303 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 17:55:02,303 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 17:55:02,303 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 17:55:02,304 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 17:55:02,304 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 17:55:02,304 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-10-11 17:55:02,309 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-10-11 17:55:02,309 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 17:55:02,309 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 17:55:02,310 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 17:55:02,310 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 17:55:02,310 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-10-11 17:55:02,310 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:/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7140a276a0ca1ba8339f047ca5220394bc3f48542635b8ad8e347c34fb7ba260 [2024-10-11 17:55:02,770 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 17:55:02,802 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 17:55:02,808 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 17:55:02,809 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 17:55:02,812 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 17:55:02,813 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/list-ext-properties/test-0158_1-2.i [2024-10-11 17:55:04,468 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 17:55:04,691 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 17:55:04,692 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/list-ext-properties/test-0158_1-2.i [2024-10-11 17:55:04,705 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/786ba364a/7bf7dd215ddf485da6fc8eabd271fa2a/FLAG958ca22f3 [2024-10-11 17:55:04,718 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/786ba364a/7bf7dd215ddf485da6fc8eabd271fa2a [2024-10-11 17:55:04,720 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 17:55:04,721 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 17:55:04,724 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 17:55:04,724 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 17:55:04,728 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 17:55:04,728 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 05:55:04" (1/1) ... [2024-10-11 17:55:04,729 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6befc7b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:55:04, skipping insertion in model container [2024-10-11 17:55:04,730 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 05:55:04" (1/1) ... [2024-10-11 17:55:04,765 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 17:55:05,072 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 17:55:05,085 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 17:55:05,126 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 17:55:05,151 INFO L204 MainTranslator]: Completed translation [2024-10-11 17:55:05,151 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:55:05 WrapperNode [2024-10-11 17:55:05,152 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 17:55:05,152 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 17:55:05,152 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 17:55:05,153 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 17:55:05,158 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:55:05" (1/1) ... [2024-10-11 17:55:05,170 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:55:05" (1/1) ... [2024-10-11 17:55:05,183 INFO L138 Inliner]: procedures = 127, calls = 15, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 30 [2024-10-11 17:55:05,184 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 17:55:05,184 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 17:55:05,185 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 17:55:05,185 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 17:55:05,193 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:55:05" (1/1) ... [2024-10-11 17:55:05,193 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:55:05" (1/1) ... [2024-10-11 17:55:05,198 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:55:05" (1/1) ... [2024-10-11 17:55:05,217 INFO L175 MemorySlicer]: Split 7 memory accesses to 2 slices as follows [2, 5]. 71 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 4 writes are split as follows [0, 4]. [2024-10-11 17:55:05,217 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:55:05" (1/1) ... [2024-10-11 17:55:05,217 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:55:05" (1/1) ... [2024-10-11 17:55:05,227 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:55:05" (1/1) ... [2024-10-11 17:55:05,228 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:55:05" (1/1) ... [2024-10-11 17:55:05,230 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:55:05" (1/1) ... [2024-10-11 17:55:05,230 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:55:05" (1/1) ... [2024-10-11 17:55:05,236 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 17:55:05,237 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 17:55:05,238 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 17:55:05,238 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 17:55:05,241 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:55:05" (1/1) ... [2024-10-11 17:55:05,248 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 17:55:05,257 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 17:55:05,269 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 17:55:05,274 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 17:55:05,317 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-10-11 17:55:05,317 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-10-11 17:55:05,317 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-11 17:55:05,317 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 17:55:05,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-10-11 17:55:05,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-10-11 17:55:05,318 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-11 17:55:05,318 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2024-10-11 17:55:05,318 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#1 [2024-10-11 17:55:05,318 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-11 17:55:05,318 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-10-11 17:55:05,318 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-10-11 17:55:05,318 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-10-11 17:55:05,318 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-10-11 17:55:05,318 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 17:55:05,318 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 17:55:05,443 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 17:55:05,444 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 17:55:05,647 INFO L? ?]: Removed 22 outVars from TransFormulas that were not future-live. [2024-10-11 17:55:05,648 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 17:55:05,681 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 17:55:05,681 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-11 17:55:05,682 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 05:55:05 BoogieIcfgContainer [2024-10-11 17:55:05,683 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 17:55:05,685 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 17:55:05,685 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 17:55:05,687 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 17:55:05,687 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 05:55:04" (1/3) ... [2024-10-11 17:55:05,688 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c289f94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 05:55:05, skipping insertion in model container [2024-10-11 17:55:05,688 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:55:05" (2/3) ... [2024-10-11 17:55:05,689 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c289f94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 05:55:05, skipping insertion in model container [2024-10-11 17:55:05,689 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 05:55:05" (3/3) ... [2024-10-11 17:55:05,690 INFO L112 eAbstractionObserver]: Analyzing ICFG test-0158_1-2.i [2024-10-11 17:55:05,703 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 17:55:05,703 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2024-10-11 17:55:05,741 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 17:55:05,747 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=None, 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;@3d29fa0e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 17:55:05,747 INFO L334 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2024-10-11 17:55:05,750 INFO L276 IsEmpty]: Start isEmpty. Operand has 22 states, 10 states have (on average 2.3) internal successors, (23), 21 states have internal predecessors, (23), 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) [2024-10-11 17:55:05,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2024-10-11 17:55:05,757 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 17:55:05,757 INFO L215 NwaCegarLoop]: trace histogram [1, 1] [2024-10-11 17:55:05,758 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2024-10-11 17:55:05,764 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:55:05,764 INFO L85 PathProgramCache]: Analyzing trace with hash 2081, now seen corresponding path program 1 times [2024-10-11 17:55:05,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 17:55:05,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1583267279] [2024-10-11 17:55:05,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:55:05,775 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 17:55:05,775 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 17:55:05,778 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-11 17:55:05,780 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-10-11 17:55:05,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:55:05,852 INFO L255 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-11 17:55:05,856 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 17:55:05,932 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2024-10-11 17:55:05,933 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 15 [2024-10-11 17:55:05,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:55:05,965 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 17:55:05,965 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 17:55:05,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1583267279] [2024-10-11 17:55:05,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1583267279] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:55:05,966 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:55:05,966 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-11 17:55:05,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017669272] [2024-10-11 17:55:05,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:55:05,972 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 17:55:05,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 17:55:05,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 17:55:05,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 17:55:05,996 INFO L87 Difference]: Start difference. First operand has 22 states, 10 states have (on average 2.3) internal successors, (23), 21 states have internal predecessors, (23), 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, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2024-10-11 17:55:06,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 17:55:06,062 INFO L93 Difference]: Finished difference Result 17 states and 18 transitions. [2024-10-11 17:55:06,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 17:55:06,065 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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 2 [2024-10-11 17:55:06,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 17:55:06,070 INFO L225 Difference]: With dead ends: 17 [2024-10-11 17:55:06,070 INFO L226 Difference]: Without dead ends: 16 [2024-10-11 17:55:06,071 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 17:55:06,074 INFO L432 NwaCegarLoop]: 5 mSDtfsCounter, 9 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 17:55:06,075 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 5 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 17:55:06,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2024-10-11 17:55:06,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2024-10-11 17:55:06,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 10 states have (on average 1.7) internal successors, (17), 15 states have internal predecessors, (17), 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) [2024-10-11 17:55:06,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions. [2024-10-11 17:55:06,097 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 17 transitions. Word has length 2 [2024-10-11 17:55:06,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 17:55:06,098 INFO L471 AbstractCegarLoop]: Abstraction has 16 states and 17 transitions. [2024-10-11 17:55:06,098 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2024-10-11 17:55:06,098 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2024-10-11 17:55:06,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2024-10-11 17:55:06,098 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 17:55:06,098 INFO L215 NwaCegarLoop]: trace histogram [1, 1] [2024-10-11 17:55:06,105 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-10-11 17:55:06,301 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 17:55:06,302 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2024-10-11 17:55:06,303 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:55:06,303 INFO L85 PathProgramCache]: Analyzing trace with hash 2082, now seen corresponding path program 1 times [2024-10-11 17:55:06,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 17:55:06,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1733827623] [2024-10-11 17:55:06,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:55:06,303 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 17:55:06,303 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 17:55:06,305 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-11 17:55:06,306 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-10-11 17:55:06,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:55:06,353 INFO L255 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-11 17:55:06,354 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 17:55:06,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-11 17:55:06,372 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 5 [2024-10-11 17:55:06,379 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2024-10-11 17:55:06,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:55:06,407 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 17:55:06,407 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 17:55:06,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1733827623] [2024-10-11 17:55:06,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1733827623] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:55:06,407 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:55:06,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-11 17:55:06,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456896216] [2024-10-11 17:55:06,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:55:06,410 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 17:55:06,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 17:55:06,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 17:55:06,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 17:55:06,411 INFO L87 Difference]: Start difference. First operand 16 states and 17 transitions. Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2024-10-11 17:55:06,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 17:55:06,459 INFO L93 Difference]: Finished difference Result 12 states and 13 transitions. [2024-10-11 17:55:06,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 17:55:06,460 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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 2 [2024-10-11 17:55:06,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 17:55:06,460 INFO L225 Difference]: With dead ends: 12 [2024-10-11 17:55:06,460 INFO L226 Difference]: Without dead ends: 12 [2024-10-11 17:55:06,461 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 17:55:06,462 INFO L432 NwaCegarLoop]: 5 mSDtfsCounter, 8 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 17:55:06,462 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 6 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 17:55:06,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2024-10-11 17:55:06,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 11. [2024-10-11 17:55:06,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 10 states have (on average 1.2) internal successors, (12), 10 states have internal predecessors, (12), 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) [2024-10-11 17:55:06,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 12 transitions. [2024-10-11 17:55:06,465 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 12 transitions. Word has length 2 [2024-10-11 17:55:06,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 17:55:06,465 INFO L471 AbstractCegarLoop]: Abstraction has 11 states and 12 transitions. [2024-10-11 17:55:06,465 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2024-10-11 17:55:06,465 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 12 transitions. [2024-10-11 17:55:06,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-10-11 17:55:06,466 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 17:55:06,466 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:55:06,475 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-10-11 17:55:06,668 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 17:55:06,669 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2024-10-11 17:55:06,670 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:55:06,670 INFO L85 PathProgramCache]: Analyzing trace with hash 437069424, now seen corresponding path program 1 times [2024-10-11 17:55:06,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 17:55:06,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [191911418] [2024-10-11 17:55:06,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:55:06,671 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 17:55:06,671 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 17:55:06,674 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-11 17:55:06,677 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-10-11 17:55:06,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:55:06,718 INFO L255 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-11 17:55:06,719 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 17:55:06,730 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-10-11 17:55:06,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:55:06,756 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 17:55:06,756 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 17:55:06,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [191911418] [2024-10-11 17:55:06,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [191911418] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:55:06,757 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:55:06,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 17:55:06,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837545844] [2024-10-11 17:55:06,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:55:06,757 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 17:55:06,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 17:55:06,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 17:55:06,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 17:55:06,758 INFO L87 Difference]: Start difference. First operand 11 states and 12 transitions. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 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) [2024-10-11 17:55:06,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 17:55:06,821 INFO L93 Difference]: Finished difference Result 14 states and 15 transitions. [2024-10-11 17:55:06,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 17:55:06,822 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 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 8 [2024-10-11 17:55:06,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 17:55:06,822 INFO L225 Difference]: With dead ends: 14 [2024-10-11 17:55:06,822 INFO L226 Difference]: Without dead ends: 14 [2024-10-11 17:55:06,822 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-11 17:55:06,823 INFO L432 NwaCegarLoop]: 7 mSDtfsCounter, 2 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 17:55:06,823 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 18 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 17:55:06,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2024-10-11 17:55:06,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 13. [2024-10-11 17:55:06,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 12 states have internal predecessors, (14), 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) [2024-10-11 17:55:06,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2024-10-11 17:55:06,830 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 8 [2024-10-11 17:55:06,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 17:55:06,830 INFO L471 AbstractCegarLoop]: Abstraction has 13 states and 14 transitions. [2024-10-11 17:55:06,830 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 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) [2024-10-11 17:55:06,830 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2024-10-11 17:55:06,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-10-11 17:55:06,834 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 17:55:06,834 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:55:06,839 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2024-10-11 17:55:07,035 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 17:55:07,035 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2024-10-11 17:55:07,039 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:55:07,040 INFO L85 PathProgramCache]: Analyzing trace with hash 584832784, now seen corresponding path program 1 times [2024-10-11 17:55:07,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 17:55:07,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [31032653] [2024-10-11 17:55:07,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:55:07,040 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 17:55:07,040 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 17:55:07,043 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-11 17:55:07,044 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-10-11 17:55:07,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-11 17:55:07,088 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-11 17:55:07,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-11 17:55:07,118 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2024-10-11 17:55:07,119 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-11 17:55:07,119 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK (10 of 11 remaining) [2024-10-11 17:55:07,120 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 11 remaining) [2024-10-11 17:55:07,121 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 11 remaining) [2024-10-11 17:55:07,121 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 11 remaining) [2024-10-11 17:55:07,121 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 11 remaining) [2024-10-11 17:55:07,121 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 11 remaining) [2024-10-11 17:55:07,121 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 11 remaining) [2024-10-11 17:55:07,122 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 11 remaining) [2024-10-11 17:55:07,122 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 11 remaining) [2024-10-11 17:55:07,122 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 11 remaining) [2024-10-11 17:55:07,122 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 11 remaining) [2024-10-11 17:55:07,136 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2024-10-11 17:55:07,322 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 17:55:07,326 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-10-11 17:55:07,353 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-11 17:55:07,359 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 05:55:07 BoogieIcfgContainer [2024-10-11 17:55:07,362 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-11 17:55:07,362 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-11 17:55:07,363 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-11 17:55:07,363 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-11 17:55:07,363 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 05:55:05" (3/4) ... [2024-10-11 17:55:07,364 INFO L142 WitnessPrinter]: No result that supports witness generation found [2024-10-11 17:55:07,365 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-11 17:55:07,369 INFO L158 Benchmark]: Toolchain (without parser) took 2648.34ms. Allocated memory was 69.2MB in the beginning and 86.0MB in the end (delta: 16.8MB). Free memory was 39.4MB in the beginning and 61.2MB in the end (delta: -21.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-11 17:55:07,370 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 46.1MB. Free memory is still 24.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-11 17:55:07,370 INFO L158 Benchmark]: CACSL2BoogieTranslator took 428.08ms. Allocated memory is still 69.2MB. Free memory was 39.2MB in the beginning and 37.2MB in the end (delta: 1.9MB). Peak memory consumption was 9.6MB. Max. memory is 16.1GB. [2024-10-11 17:55:07,370 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.35ms. Allocated memory is still 69.2MB. Free memory was 37.2MB in the beginning and 35.4MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-11 17:55:07,370 INFO L158 Benchmark]: Boogie Preprocessor took 52.39ms. Allocated memory is still 69.2MB. Free memory was 35.4MB in the beginning and 32.9MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-11 17:55:07,370 INFO L158 Benchmark]: RCFGBuilder took 446.10ms. Allocated memory is still 69.2MB. Free memory was 32.9MB in the beginning and 34.3MB in the end (delta: -1.4MB). Peak memory consumption was 6.2MB. Max. memory is 16.1GB. [2024-10-11 17:55:07,371 INFO L158 Benchmark]: TraceAbstraction took 1677.48ms. Allocated memory was 69.2MB in the beginning and 86.0MB in the end (delta: 16.8MB). Free memory was 33.6MB in the beginning and 61.7MB in the end (delta: -28.1MB). Peak memory consumption was 12.5MB. Max. memory is 16.1GB. [2024-10-11 17:55:07,371 INFO L158 Benchmark]: Witness Printer took 6.60ms. Allocated memory is still 86.0MB. Free memory was 61.7MB in the beginning and 61.2MB in the end (delta: 490.6kB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-11 17:55:07,372 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 46.1MB. Free memory is still 24.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 428.08ms. Allocated memory is still 69.2MB. Free memory was 39.2MB in the beginning and 37.2MB in the end (delta: 1.9MB). Peak memory consumption was 9.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.35ms. Allocated memory is still 69.2MB. Free memory was 37.2MB in the beginning and 35.4MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 52.39ms. Allocated memory is still 69.2MB. Free memory was 35.4MB in the beginning and 32.9MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 446.10ms. Allocated memory is still 69.2MB. Free memory was 32.9MB in the beginning and 34.3MB in the end (delta: -1.4MB). Peak memory consumption was 6.2MB. Max. memory is 16.1GB. * TraceAbstraction took 1677.48ms. Allocated memory was 69.2MB in the beginning and 86.0MB in the end (delta: 16.8MB). Free memory was 33.6MB in the beginning and 61.7MB in the end (delta: -28.1MB). Peak memory consumption was 12.5MB. Max. memory is 16.1GB. * Witness Printer took 6.60ms. Allocated memory is still 86.0MB. Free memory was 61.7MB in the beginning and 61.2MB in the end (delta: 490.6kB). There was no memory consumed. Max. memory is 16.1GB. * 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 - UnprovableResult [Line: 524]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 524. Possible FailurePath: [L526-L533] union { void *p0; struct { char c[2]; int p1; int p2; } str; } data; [L534] data.p0 = malloc(37U) [L535] COND FALSE !(__VERIFIER_nondet_int()) [L538] data.str.p2 = 30 [L540] EXPR data.str.p2 [L540] COND FALSE !(25 > data.str.p2) [L543] return 0; [L543] return 0; VAL [\result=0] - 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. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 22 locations, 11 error locations. Started 1 CEGAR loops. OverallTime: 1.6s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 19 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 19 mSDsluCounter, 29 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 12 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 47 IncrementalHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 17 mSDtfsCounter, 47 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred in iteration=0, InterpolantAutomatonStates: 10, 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, 3 MinimizatonAttempts, 2 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 9 ConstructedInterpolants, 1 QuantifiedInterpolants, 42 SizeOfPredicates, 5 NumberOfNonLiveVariables, 117 ConjunctsInSsa, 15 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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 could not prove your program: unable to determine feasibility of some traces [2024-10-11 17:55:07,431 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample