./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/valid-memsafety.prp --file ../../../trunk/examples/svcomp/memsafety/test-0158-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version da043454 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../../../trunk/examples/svcomp/memsafety/test-0158-2.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/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 c0fb0e7f34ea127f216096f8fd5ce5a083bf5423fbff97ede422cdc19dcc5f74 --- Real Ultimate output --- This is Ultimate 0.3.0-wip.fs.system-includes-da04345-m [2025-04-29 11:24:19,870 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-29 11:24:19,922 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2025-04-29 11:24:19,928 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-29 11:24:19,928 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-29 11:24:19,943 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-29 11:24:19,944 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-29 11:24:19,944 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-29 11:24:19,944 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-04-29 11:24:19,944 INFO L153 SettingsManager]: * Use memory slicer=true [2025-04-29 11:24:19,944 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-04-29 11:24:19,944 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-04-29 11:24:19,945 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-29 11:24:19,945 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-29 11:24:19,945 INFO L153 SettingsManager]: * Use SBE=true [2025-04-29 11:24:19,945 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-29 11:24:19,945 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-29 11:24:19,945 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-29 11:24:19,945 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-29 11:24:19,945 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-29 11:24:19,945 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-04-29 11:24:19,945 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-04-29 11:24:19,946 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-04-29 11:24:19,946 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-04-29 11:24:19,946 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-04-29 11:24:19,946 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-04-29 11:24:19,946 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-29 11:24:19,946 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-04-29 11:24:19,946 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-29 11:24:19,946 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-04-29 11:24:19,946 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-29 11:24:19,946 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-29 11:24:19,946 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-29 11:24:19,946 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-29 11:24:19,947 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-29 11:24:19,947 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-29 11:24:19,947 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-29 11:24:19,947 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-29 11:24:19,947 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-29 11:24:19,947 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-29 11:24:19,947 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-04-29 11:24:19,947 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-29 11:24:19,947 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-04-29 11:24:19,947 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-04-29 11:24:19,948 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-04-29 11:24:19,948 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-04-29 11:24:19,948 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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/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 -> c0fb0e7f34ea127f216096f8fd5ce5a083bf5423fbff97ede422cdc19dcc5f74 [2025-04-29 11:24:20,149 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-29 11:24:20,154 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-29 11:24:20,156 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-29 11:24:20,157 INFO L270 PluginConnector]: Initializing CDTParser... [2025-04-29 11:24:20,158 INFO L274 PluginConnector]: CDTParser initialized [2025-04-29 11:24:20,159 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/memsafety/test-0158-2.c [2025-04-29 11:24:21,492 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/22ec8445f/ae1d41f9984045e28e7324c18d60f5ed/FLAG6af767caa [2025-04-29 11:24:21,713 INFO L389 CDTParser]: Found 1 translation units. [2025-04-29 11:24:21,714 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/memsafety/test-0158-2.c [2025-04-29 11:24:21,715 WARN L117 ultiparseSymbolTable]: System include assert.h could not be resolved by CDT -- only built-in system includes are available. [2025-04-29 11:24:21,715 WARN L117 ultiparseSymbolTable]: System include stdlib.h could not be resolved by CDT -- only built-in system includes are available. [2025-04-29 11:24:21,722 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/22ec8445f/ae1d41f9984045e28e7324c18d60f5ed/FLAG6af767caa [2025-04-29 11:24:22,493 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/22ec8445f/ae1d41f9984045e28e7324c18d60f5ed [2025-04-29 11:24:22,495 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-29 11:24:22,496 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-04-29 11:24:22,497 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-04-29 11:24:22,497 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-04-29 11:24:22,500 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-04-29 11:24:22,500 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 11:24:22" (1/1) ... [2025-04-29 11:24:22,501 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41276fad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:24:22, skipping insertion in model container [2025-04-29 11:24:22,501 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 11:24:22" (1/1) ... [2025-04-29 11:24:22,509 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-04-29 11:24:22,634 INFO L211 PostProcessor]: Analyzing one entry point: main [2025-04-29 11:24:22,639 INFO L200 MainTranslator]: Completed pre-run [2025-04-29 11:24:22,655 INFO L211 PostProcessor]: Analyzing one entry point: main [2025-04-29 11:24:22,667 INFO L204 MainTranslator]: Completed translation [2025-04-29 11:24:22,667 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:24:22 WrapperNode [2025-04-29 11:24:22,668 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-04-29 11:24:22,668 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-29 11:24:22,668 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-29 11:24:22,668 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-29 11:24:22,672 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:24:22" (1/1) ... [2025-04-29 11:24:22,682 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:24:22" (1/1) ... [2025-04-29 11:24:22,692 INFO L138 Inliner]: procedures = 12, calls = 9, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 16 [2025-04-29 11:24:22,692 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-29 11:24:22,693 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-29 11:24:22,693 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-29 11:24:22,693 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-29 11:24:22,698 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:24:22" (1/1) ... [2025-04-29 11:24:22,699 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:24:22" (1/1) ... [2025-04-29 11:24:22,699 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:24:22" (1/1) ... [2025-04-29 11:24:22,707 INFO L175 MemorySlicer]: Split 3 memory accesses to 1 slices as follows [3]. 100 percent of accesses are in the largest equivalence class. The 0 initializations are split as follows [0]. The 3 writes are split as follows [3]. [2025-04-29 11:24:22,707 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:24:22" (1/1) ... [2025-04-29 11:24:22,707 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:24:22" (1/1) ... [2025-04-29 11:24:22,710 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:24:22" (1/1) ... [2025-04-29 11:24:22,711 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:24:22" (1/1) ... [2025-04-29 11:24:22,712 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:24:22" (1/1) ... [2025-04-29 11:24:22,712 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:24:22" (1/1) ... [2025-04-29 11:24:22,713 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:24:22" (1/1) ... [2025-04-29 11:24:22,715 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-29 11:24:22,715 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-29 11:24:22,716 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-29 11:24:22,716 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-29 11:24:22,716 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:24:22" (1/1) ... [2025-04-29 11:24:22,720 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-29 11:24:22,729 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-29 11:24:22,738 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-04-29 11:24:22,741 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-04-29 11:24:22,755 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-04-29 11:24:22,755 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-04-29 11:24:22,755 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-29 11:24:22,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-29 11:24:22,755 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-04-29 11:24:22,755 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-04-29 11:24:22,755 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-04-29 11:24:22,802 INFO L234 CfgBuilder]: Building ICFG [2025-04-29 11:24:22,804 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-29 11:24:22,914 INFO L? ?]: Removed 16 outVars from TransFormulas that were not future-live. [2025-04-29 11:24:22,914 INFO L283 CfgBuilder]: Performing block encoding [2025-04-29 11:24:22,922 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-29 11:24:22,922 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-04-29 11:24:22,922 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 11:24:22 BoogieIcfgContainer [2025-04-29 11:24:22,922 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-29 11:24:22,924 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-04-29 11:24:22,924 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-04-29 11:24:22,927 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-04-29 11:24:22,927 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.04 11:24:22" (1/3) ... [2025-04-29 11:24:22,928 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bd90b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 11:24:22, skipping insertion in model container [2025-04-29 11:24:22,928 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:24:22" (2/3) ... [2025-04-29 11:24:22,928 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bd90b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 11:24:22, skipping insertion in model container [2025-04-29 11:24:22,928 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 11:24:22" (3/3) ... [2025-04-29 11:24:22,929 INFO L128 eAbstractionObserver]: Analyzing ICFG test-0158-2.c [2025-04-29 11:24:22,938 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-04-29 11:24:22,939 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG test-0158-2.c that has 1 procedures, 17 locations, 16 edges, 1 initial locations, 0 loop locations, and 7 error locations. [2025-04-29 11:24:22,966 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-04-29 11:24:22,976 INFO L340 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;@6d5a4707, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-29 11:24:22,976 INFO L341 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2025-04-29 11:24:22,978 INFO L278 IsEmpty]: Start isEmpty. Operand has 17 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 16 states have internal predecessors, (16), 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) [2025-04-29 11:24:22,981 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2025-04-29 11:24:22,981 INFO L210 NwaCegarLoop]: Found error trace [2025-04-29 11:24:22,982 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1] [2025-04-29 11:24:22,982 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2025-04-29 11:24:22,985 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:24:22,986 INFO L85 PathProgramCache]: Analyzing trace with hash 29857, now seen corresponding path program 1 times [2025-04-29 11:24:22,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:24:22,990 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718509326] [2025-04-29 11:24:22,990 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:24:22,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:24:23,035 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-29 11:24:23,046 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-29 11:24:23,046 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:24:23,047 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:24:23,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-29 11:24:23,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:24:23,126 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718509326] [2025-04-29 11:24:23,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [718509326] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 11:24:23,126 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-29 11:24:23,127 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-29 11:24:23,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975636083] [2025-04-29 11:24:23,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 11:24:23,132 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-29 11:24:23,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:24:23,146 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-29 11:24:23,147 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-29 11:24:23,148 INFO L87 Difference]: Start difference. First operand has 17 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 16 states have internal predecessors, (16), 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 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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) [2025-04-29 11:24:23,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-29 11:24:23,184 INFO L93 Difference]: Finished difference Result 14 states and 13 transitions. [2025-04-29 11:24:23,185 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-29 11:24:23,186 INFO L79 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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 3 [2025-04-29 11:24:23,186 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-29 11:24:23,189 INFO L225 Difference]: With dead ends: 14 [2025-04-29 11:24:23,189 INFO L226 Difference]: Without dead ends: 12 [2025-04-29 11:24:23,190 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-29 11:24:23,192 INFO L437 NwaCegarLoop]: 6 mSDtfsCounter, 4 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-04-29 11:24:23,193 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 7 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-04-29 11:24:23,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2025-04-29 11:24:23,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2025-04-29 11:24:23,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 8 states have (on average 1.375) internal successors, (11), 11 states have internal predecessors, (11), 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) [2025-04-29 11:24:23,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 11 transitions. [2025-04-29 11:24:23,209 INFO L79 Accepts]: Start accepts. Automaton has 12 states and 11 transitions. Word has length 3 [2025-04-29 11:24:23,209 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-29 11:24:23,209 INFO L485 AbstractCegarLoop]: Abstraction has 12 states and 11 transitions. [2025-04-29 11:24:23,209 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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) [2025-04-29 11:24:23,209 INFO L278 IsEmpty]: Start isEmpty. Operand 12 states and 11 transitions. [2025-04-29 11:24:23,210 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2025-04-29 11:24:23,210 INFO L210 NwaCegarLoop]: Found error trace [2025-04-29 11:24:23,210 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1] [2025-04-29 11:24:23,210 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-04-29 11:24:23,210 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2025-04-29 11:24:23,210 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:24:23,210 INFO L85 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 1 times [2025-04-29 11:24:23,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:24:23,211 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086089702] [2025-04-29 11:24:23,211 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:24:23,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:24:23,217 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-29 11:24:23,222 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-29 11:24:23,222 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:24:23,222 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:24:23,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-29 11:24:23,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:24:23,299 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1086089702] [2025-04-29 11:24:23,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1086089702] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 11:24:23,299 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-29 11:24:23,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-29 11:24:23,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780167660] [2025-04-29 11:24:23,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 11:24:23,300 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-29 11:24:23,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:24:23,301 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-29 11:24:23,301 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-29 11:24:23,301 INFO L87 Difference]: Start difference. First operand 12 states and 11 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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) [2025-04-29 11:24:23,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-29 11:24:23,312 INFO L93 Difference]: Finished difference Result 9 states and 8 transitions. [2025-04-29 11:24:23,313 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-29 11:24:23,313 INFO L79 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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 3 [2025-04-29 11:24:23,313 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-29 11:24:23,313 INFO L225 Difference]: With dead ends: 9 [2025-04-29 11:24:23,313 INFO L226 Difference]: Without dead ends: 9 [2025-04-29 11:24:23,314 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-29 11:24:23,314 INFO L437 NwaCegarLoop]: 5 mSDtfsCounter, 3 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-04-29 11:24:23,314 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 7 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-04-29 11:24:23,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2025-04-29 11:24:23,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2025-04-29 11:24:23,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.0) internal successors, (8), 8 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) [2025-04-29 11:24:23,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 8 transitions. [2025-04-29 11:24:23,315 INFO L79 Accepts]: Start accepts. Automaton has 9 states and 8 transitions. Word has length 3 [2025-04-29 11:24:23,315 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-29 11:24:23,316 INFO L485 AbstractCegarLoop]: Abstraction has 9 states and 8 transitions. [2025-04-29 11:24:23,316 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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) [2025-04-29 11:24:23,316 INFO L278 IsEmpty]: Start isEmpty. Operand 9 states and 8 transitions. [2025-04-29 11:24:23,316 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2025-04-29 11:24:23,316 INFO L210 NwaCegarLoop]: Found error trace [2025-04-29 11:24:23,316 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-04-29 11:24:23,316 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-04-29 11:24:23,316 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2025-04-29 11:24:23,318 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:24:23,318 INFO L85 PathProgramCache]: Analyzing trace with hash 59200043, now seen corresponding path program 1 times [2025-04-29 11:24:23,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:24:23,318 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400833898] [2025-04-29 11:24:23,318 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:24:23,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:24:23,330 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-04-29 11:24:23,341 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-04-29 11:24:23,341 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:24:23,341 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-29 11:24:23,341 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-29 11:24:23,344 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-04-29 11:24:23,350 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-04-29 11:24:23,350 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:24:23,351 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-29 11:24:23,361 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-29 11:24:23,361 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-04-29 11:24:23,362 INFO L790 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK (6 of 7 remaining) [2025-04-29 11:24:23,363 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 7 remaining) [2025-04-29 11:24:23,363 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 7 remaining) [2025-04-29 11:24:23,364 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 7 remaining) [2025-04-29 11:24:23,364 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 7 remaining) [2025-04-29 11:24:23,364 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 7 remaining) [2025-04-29 11:24:23,364 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 7 remaining) [2025-04-29 11:24:23,364 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-04-29 11:24:23,367 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2025-04-29 11:24:23,383 INFO L171 ceAbstractionStarter]: Computing trace abstraction results [2025-04-29 11:24:23,386 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.04 11:24:23 BoogieIcfgContainer [2025-04-29 11:24:23,386 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-04-29 11:24:23,387 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-04-29 11:24:23,387 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-04-29 11:24:23,387 INFO L274 PluginConnector]: Witness Printer initialized [2025-04-29 11:24:23,387 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 11:24:22" (3/4) ... [2025-04-29 11:24:23,389 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-04-29 11:24:23,389 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-04-29 11:24:23,390 INFO L158 Benchmark]: Toolchain (without parser) took 893.90ms. Allocated memory is still 167.8MB. Free memory was 129.8MB in the beginning and 68.9MB in the end (delta: 60.9MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. [2025-04-29 11:24:23,391 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 192.9MB. Free memory is still 119.9MB. There was no memory consumed. Max. memory is 16.1GB. [2025-04-29 11:24:23,392 INFO L158 Benchmark]: CACSL2BoogieTranslator took 170.77ms. Allocated memory is still 167.8MB. Free memory was 129.8MB in the beginning and 116.3MB in the end (delta: 13.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-04-29 11:24:23,393 INFO L158 Benchmark]: Boogie Procedure Inliner took 23.94ms. Allocated memory is still 167.8MB. Free memory was 116.3MB in the beginning and 115.1MB in the end (delta: 1.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-04-29 11:24:23,393 INFO L158 Benchmark]: Boogie Preprocessor took 22.38ms. Allocated memory is still 167.8MB. Free memory was 115.1MB in the beginning and 113.5MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-29 11:24:23,393 INFO L158 Benchmark]: RCFGBuilder took 206.64ms. Allocated memory is still 167.8MB. Free memory was 113.5MB in the beginning and 102.8MB in the end (delta: 10.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-04-29 11:24:23,394 INFO L158 Benchmark]: TraceAbstraction took 462.24ms. Allocated memory is still 167.8MB. Free memory was 102.0MB in the beginning and 69.2MB in the end (delta: 32.8MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2025-04-29 11:24:23,394 INFO L158 Benchmark]: Witness Printer took 2.94ms. Allocated memory is still 167.8MB. Free memory is still 68.9MB. There was no memory consumed. Max. memory is 16.1GB. [2025-04-29 11:24:23,395 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 192.9MB. Free memory is still 119.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 170.77ms. Allocated memory is still 167.8MB. Free memory was 129.8MB in the beginning and 116.3MB in the end (delta: 13.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 23.94ms. Allocated memory is still 167.8MB. Free memory was 116.3MB in the beginning and 115.1MB in the end (delta: 1.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 22.38ms. Allocated memory is still 167.8MB. Free memory was 115.1MB in the beginning and 113.5MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 206.64ms. Allocated memory is still 167.8MB. Free memory was 113.5MB in the beginning and 102.8MB in the end (delta: 10.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 462.24ms. Allocated memory is still 167.8MB. Free memory was 102.0MB in the beginning and 69.2MB in the end (delta: 32.8MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Witness Printer took 2.94ms. Allocated memory is still 167.8MB. Free memory is still 68.9MB. 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: 7]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 7. Possible FailurePath: [L9-L18] union { void *p0; struct { char c[2]; void *p1; void *p2; } str; } data; [L21] data.p0 = malloc(37U) [L24] data.str.p2 = &data [L27] data.str.c[1] = sizeof data.str.p1 [L29] return 0; [L29] 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. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 17 locations, 16 edges, 7 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 7 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 7 mSDsluCounter, 14 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 19 IncrementalHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 11 mSDtfsCounter, 19 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred in iteration=0, InterpolantAutomatonStates: 6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 4 ConstructedInterpolants, 0 QuantifiedInterpolants, 16 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2025-04-29 11:24:23,406 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with 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/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../../../trunk/examples/svcomp/memsafety/test-0158-2.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/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 c0fb0e7f34ea127f216096f8fd5ce5a083bf5423fbff97ede422cdc19dcc5f74 --- Real Ultimate output --- This is Ultimate 0.3.0-wip.fs.system-includes-da04345-m [2025-04-29 11:24:25,145 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-29 11:24:25,223 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2025-04-29 11:24:25,229 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-29 11:24:25,230 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-29 11:24:25,249 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-29 11:24:25,249 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-29 11:24:25,249 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-29 11:24:25,249 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-04-29 11:24:25,250 INFO L153 SettingsManager]: * Use memory slicer=true [2025-04-29 11:24:25,250 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-04-29 11:24:25,250 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-04-29 11:24:25,250 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-29 11:24:25,250 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-29 11:24:25,250 INFO L153 SettingsManager]: * Use SBE=true [2025-04-29 11:24:25,250 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-29 11:24:25,250 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-29 11:24:25,250 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-29 11:24:25,251 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-29 11:24:25,251 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-29 11:24:25,251 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-04-29 11:24:25,251 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-04-29 11:24:25,251 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-04-29 11:24:25,251 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-04-29 11:24:25,251 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-04-29 11:24:25,251 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-04-29 11:24:25,251 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-04-29 11:24:25,251 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-04-29 11:24:25,251 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-29 11:24:25,252 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-04-29 11:24:25,252 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-29 11:24:25,252 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-04-29 11:24:25,252 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-29 11:24:25,252 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-29 11:24:25,252 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-29 11:24:25,252 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-29 11:24:25,252 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-29 11:24:25,252 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-29 11:24:25,252 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-29 11:24:25,252 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-29 11:24:25,253 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-29 11:24:25,253 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-29 11:24:25,253 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-04-29 11:24:25,253 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-04-29 11:24:25,253 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-04-29 11:24:25,253 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-04-29 11:24:25,253 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-04-29 11:24:25,253 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-04-29 11:24:25,253 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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/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 -> c0fb0e7f34ea127f216096f8fd5ce5a083bf5423fbff97ede422cdc19dcc5f74 [2025-04-29 11:24:25,514 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-29 11:24:25,520 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-29 11:24:25,522 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-29 11:24:25,523 INFO L270 PluginConnector]: Initializing CDTParser... [2025-04-29 11:24:25,524 INFO L274 PluginConnector]: CDTParser initialized [2025-04-29 11:24:25,524 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/memsafety/test-0158-2.c [2025-04-29 11:24:26,821 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b30ac66df/8e4dc1c42e6842de97e68134709634b6/FLAG880d05bc0 [2025-04-29 11:24:26,966 INFO L389 CDTParser]: Found 1 translation units. [2025-04-29 11:24:26,967 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/memsafety/test-0158-2.c [2025-04-29 11:24:26,968 WARN L117 ultiparseSymbolTable]: System include assert.h could not be resolved by CDT -- only built-in system includes are available. [2025-04-29 11:24:26,968 WARN L117 ultiparseSymbolTable]: System include stdlib.h could not be resolved by CDT -- only built-in system includes are available. [2025-04-29 11:24:26,972 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b30ac66df/8e4dc1c42e6842de97e68134709634b6/FLAG880d05bc0 [2025-04-29 11:24:27,821 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b30ac66df/8e4dc1c42e6842de97e68134709634b6 [2025-04-29 11:24:27,823 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-29 11:24:27,824 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-04-29 11:24:27,825 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-04-29 11:24:27,825 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-04-29 11:24:27,828 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-04-29 11:24:27,828 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 11:24:27" (1/1) ... [2025-04-29 11:24:27,830 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6549aa8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:24:27, skipping insertion in model container [2025-04-29 11:24:27,830 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 11:24:27" (1/1) ... [2025-04-29 11:24:27,840 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-04-29 11:24:27,960 INFO L211 PostProcessor]: Analyzing one entry point: main [2025-04-29 11:24:27,965 INFO L200 MainTranslator]: Completed pre-run [2025-04-29 11:24:27,984 INFO L211 PostProcessor]: Analyzing one entry point: main [2025-04-29 11:24:27,999 INFO L204 MainTranslator]: Completed translation [2025-04-29 11:24:28,000 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:24:28 WrapperNode [2025-04-29 11:24:28,000 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-04-29 11:24:28,001 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-29 11:24:28,001 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-29 11:24:28,001 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-29 11:24:28,006 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:24:28" (1/1) ... [2025-04-29 11:24:28,017 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:24:28" (1/1) ... [2025-04-29 11:24:28,030 INFO L138 Inliner]: procedures = 12, calls = 9, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 16 [2025-04-29 11:24:28,030 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-29 11:24:28,030 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-29 11:24:28,031 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-29 11:24:28,031 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-29 11:24:28,036 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:24:28" (1/1) ... [2025-04-29 11:24:28,036 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:24:28" (1/1) ... [2025-04-29 11:24:28,039 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:24:28" (1/1) ... [2025-04-29 11:24:28,050 INFO L175 MemorySlicer]: Split 3 memory accesses to 1 slices as follows [3]. 100 percent of accesses are in the largest equivalence class. The 0 initializations are split as follows [0]. The 3 writes are split as follows [3]. [2025-04-29 11:24:28,050 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:24:28" (1/1) ... [2025-04-29 11:24:28,051 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:24:28" (1/1) ... [2025-04-29 11:24:28,057 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:24:28" (1/1) ... [2025-04-29 11:24:28,058 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:24:28" (1/1) ... [2025-04-29 11:24:28,059 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:24:28" (1/1) ... [2025-04-29 11:24:28,061 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:24:28" (1/1) ... [2025-04-29 11:24:28,062 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:24:28" (1/1) ... [2025-04-29 11:24:28,068 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-29 11:24:28,068 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-29 11:24:28,068 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-29 11:24:28,069 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-29 11:24:28,069 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:24:28" (1/1) ... [2025-04-29 11:24:28,074 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-29 11:24:28,084 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-29 11:24:28,094 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-04-29 11:24:28,100 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-04-29 11:24:28,116 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-04-29 11:24:28,116 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-29 11:24:28,116 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-29 11:24:28,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2025-04-29 11:24:28,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-04-29 11:24:28,117 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-04-29 11:24:28,117 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-04-29 11:24:28,168 INFO L234 CfgBuilder]: Building ICFG [2025-04-29 11:24:28,170 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-29 11:24:28,304 INFO L? ?]: Removed 16 outVars from TransFormulas that were not future-live. [2025-04-29 11:24:28,304 INFO L283 CfgBuilder]: Performing block encoding [2025-04-29 11:24:28,311 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-29 11:24:28,312 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-04-29 11:24:28,312 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 11:24:28 BoogieIcfgContainer [2025-04-29 11:24:28,313 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-29 11:24:28,315 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-04-29 11:24:28,315 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-04-29 11:24:28,319 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-04-29 11:24:28,320 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.04 11:24:27" (1/3) ... [2025-04-29 11:24:28,321 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43031295 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 11:24:28, skipping insertion in model container [2025-04-29 11:24:28,321 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:24:28" (2/3) ... [2025-04-29 11:24:28,321 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43031295 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 11:24:28, skipping insertion in model container [2025-04-29 11:24:28,322 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 11:24:28" (3/3) ... [2025-04-29 11:24:28,323 INFO L128 eAbstractionObserver]: Analyzing ICFG test-0158-2.c [2025-04-29 11:24:28,333 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-04-29 11:24:28,334 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG test-0158-2.c that has 1 procedures, 17 locations, 16 edges, 1 initial locations, 0 loop locations, and 7 error locations. [2025-04-29 11:24:28,363 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-04-29 11:24:28,373 INFO L340 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;@6a71eba2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-29 11:24:28,373 INFO L341 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2025-04-29 11:24:28,376 INFO L278 IsEmpty]: Start isEmpty. Operand has 17 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 16 states have internal predecessors, (16), 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) [2025-04-29 11:24:28,379 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2025-04-29 11:24:28,379 INFO L210 NwaCegarLoop]: Found error trace [2025-04-29 11:24:28,379 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1] [2025-04-29 11:24:28,379 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2025-04-29 11:24:28,382 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:24:28,383 INFO L85 PathProgramCache]: Analyzing trace with hash 29857, now seen corresponding path program 1 times [2025-04-29 11:24:28,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-04-29 11:24:28,389 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1171852680] [2025-04-29 11:24:28,389 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:24:28,389 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-29 11:24:28,389 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-29 11:24:28,391 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-29 11:24:28,392 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-04-29 11:24:28,434 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-29 11:24:28,439 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-29 11:24:28,439 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:24:28,439 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:24:28,442 INFO L256 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-04-29 11:24:28,445 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-29 11:24:28,495 INFO L325 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2025-04-29 11:24:28,496 INFO L354 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 [2025-04-29 11:24:28,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-29 11:24:28,523 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-04-29 11:24:28,523 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-04-29 11:24:28,523 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1171852680] [2025-04-29 11:24:28,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1171852680] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 11:24:28,524 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-29 11:24:28,524 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-29 11:24:28,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155000137] [2025-04-29 11:24:28,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 11:24:28,528 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-29 11:24:28,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-04-29 11:24:28,544 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-29 11:24:28,544 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-29 11:24:28,545 INFO L87 Difference]: Start difference. First operand has 17 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 16 states have internal predecessors, (16), 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 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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) [2025-04-29 11:24:28,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-29 11:24:28,604 INFO L93 Difference]: Finished difference Result 14 states and 13 transitions. [2025-04-29 11:24:28,605 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-29 11:24:28,606 INFO L79 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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 3 [2025-04-29 11:24:28,606 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-29 11:24:28,609 INFO L225 Difference]: With dead ends: 14 [2025-04-29 11:24:28,610 INFO L226 Difference]: Without dead ends: 12 [2025-04-29 11:24:28,611 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-29 11:24:28,612 INFO L437 NwaCegarLoop]: 6 mSDtfsCounter, 4 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-04-29 11:24:28,613 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 7 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-04-29 11:24:28,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2025-04-29 11:24:28,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2025-04-29 11:24:28,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 8 states have (on average 1.375) internal successors, (11), 11 states have internal predecessors, (11), 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) [2025-04-29 11:24:28,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 11 transitions. [2025-04-29 11:24:28,634 INFO L79 Accepts]: Start accepts. Automaton has 12 states and 11 transitions. Word has length 3 [2025-04-29 11:24:28,634 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-29 11:24:28,634 INFO L485 AbstractCegarLoop]: Abstraction has 12 states and 11 transitions. [2025-04-29 11:24:28,634 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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) [2025-04-29 11:24:28,634 INFO L278 IsEmpty]: Start isEmpty. Operand 12 states and 11 transitions. [2025-04-29 11:24:28,635 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2025-04-29 11:24:28,635 INFO L210 NwaCegarLoop]: Found error trace [2025-04-29 11:24:28,635 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1] [2025-04-29 11:24:28,641 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-04-29 11:24:28,835 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-29 11:24:28,836 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2025-04-29 11:24:28,836 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:24:28,836 INFO L85 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 1 times [2025-04-29 11:24:28,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-04-29 11:24:28,836 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1409246079] [2025-04-29 11:24:28,836 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:24:28,837 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-29 11:24:28,837 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-29 11:24:28,839 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-29 11:24:28,839 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-04-29 11:24:28,864 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-29 11:24:28,868 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-29 11:24:28,868 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:24:28,868 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:24:28,869 INFO L256 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-04-29 11:24:28,871 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-29 11:24:28,894 INFO L189 IndexEqualityManager]: detected not equals via solver [2025-04-29 11:24:28,895 INFO L354 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 [2025-04-29 11:24:28,909 INFO L354 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 [2025-04-29 11:24:28,922 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-29 11:24:28,922 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-04-29 11:24:28,923 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-04-29 11:24:28,923 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1409246079] [2025-04-29 11:24:28,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1409246079] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 11:24:28,923 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-29 11:24:28,923 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-29 11:24:28,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102250345] [2025-04-29 11:24:28,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 11:24:28,924 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-29 11:24:28,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-04-29 11:24:28,924 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-29 11:24:28,925 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-29 11:24:28,926 INFO L87 Difference]: Start difference. First operand 12 states and 11 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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) [2025-04-29 11:24:28,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-29 11:24:28,956 INFO L93 Difference]: Finished difference Result 9 states and 8 transitions. [2025-04-29 11:24:28,956 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-29 11:24:28,956 INFO L79 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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 3 [2025-04-29 11:24:28,956 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-29 11:24:28,957 INFO L225 Difference]: With dead ends: 9 [2025-04-29 11:24:28,957 INFO L226 Difference]: Without dead ends: 9 [2025-04-29 11:24:28,957 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-29 11:24:28,957 INFO L437 NwaCegarLoop]: 5 mSDtfsCounter, 3 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-04-29 11:24:28,957 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 7 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-04-29 11:24:28,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2025-04-29 11:24:28,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2025-04-29 11:24:28,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.0) internal successors, (8), 8 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) [2025-04-29 11:24:28,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 8 transitions. [2025-04-29 11:24:28,959 INFO L79 Accepts]: Start accepts. Automaton has 9 states and 8 transitions. Word has length 3 [2025-04-29 11:24:28,959 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-29 11:24:28,959 INFO L485 AbstractCegarLoop]: Abstraction has 9 states and 8 transitions. [2025-04-29 11:24:28,959 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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) [2025-04-29 11:24:28,959 INFO L278 IsEmpty]: Start isEmpty. Operand 9 states and 8 transitions. [2025-04-29 11:24:28,959 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2025-04-29 11:24:28,959 INFO L210 NwaCegarLoop]: Found error trace [2025-04-29 11:24:28,959 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-04-29 11:24:28,966 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-04-29 11:24:29,159 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-29 11:24:29,160 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2025-04-29 11:24:29,160 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:24:29,160 INFO L85 PathProgramCache]: Analyzing trace with hash 59200043, now seen corresponding path program 1 times [2025-04-29 11:24:29,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-04-29 11:24:29,161 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1042265103] [2025-04-29 11:24:29,161 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:24:29,161 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-29 11:24:29,161 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-29 11:24:29,163 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-29 11:24:29,174 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-04-29 11:24:29,205 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-04-29 11:24:29,239 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-04-29 11:24:29,239 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:24:29,239 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-29 11:24:29,239 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-29 11:24:29,247 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-04-29 11:24:29,265 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-04-29 11:24:29,266 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:24:29,266 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-29 11:24:29,282 INFO L130 FreeRefinementEngine]: Strategy FOX found a feasible trace [2025-04-29 11:24:29,282 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-04-29 11:24:29,282 INFO L790 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK (6 of 7 remaining) [2025-04-29 11:24:29,284 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 7 remaining) [2025-04-29 11:24:29,284 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 7 remaining) [2025-04-29 11:24:29,284 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 7 remaining) [2025-04-29 11:24:29,284 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 7 remaining) [2025-04-29 11:24:29,284 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 7 remaining) [2025-04-29 11:24:29,284 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 7 remaining) [2025-04-29 11:24:29,291 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-04-29 11:24:29,485 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-29 11:24:29,487 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2025-04-29 11:24:29,503 INFO L171 ceAbstractionStarter]: Computing trace abstraction results [2025-04-29 11:24:29,508 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.04 11:24:29 BoogieIcfgContainer [2025-04-29 11:24:29,508 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-04-29 11:24:29,508 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-04-29 11:24:29,508 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-04-29 11:24:29,508 INFO L274 PluginConnector]: Witness Printer initialized [2025-04-29 11:24:29,509 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 11:24:28" (3/4) ... [2025-04-29 11:24:29,510 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-04-29 11:24:29,511 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-04-29 11:24:29,511 INFO L158 Benchmark]: Toolchain (without parser) took 1687.40ms. Allocated memory is still 117.4MB. Free memory was 92.3MB in the beginning and 83.6MB in the end (delta: 8.6MB). Peak memory consumption was 4.5MB. Max. memory is 16.1GB. [2025-04-29 11:24:29,512 INFO L158 Benchmark]: CDTParser took 2.63ms. Allocated memory is still 83.9MB. Free memory is still 61.5MB. There was no memory consumed. Max. memory is 16.1GB. [2025-04-29 11:24:29,512 INFO L158 Benchmark]: CACSL2BoogieTranslator took 175.54ms. Allocated memory is still 117.4MB. Free memory was 92.0MB in the beginning and 78.4MB in the end (delta: 13.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-04-29 11:24:29,512 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.20ms. Allocated memory is still 117.4MB. Free memory was 78.4MB in the beginning and 77.0MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-29 11:24:29,512 INFO L158 Benchmark]: Boogie Preprocessor took 37.37ms. Allocated memory is still 117.4MB. Free memory was 77.0MB in the beginning and 75.4MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-29 11:24:29,512 INFO L158 Benchmark]: RCFGBuilder took 244.58ms. Allocated memory is still 117.4MB. Free memory was 75.4MB in the beginning and 64.6MB in the end (delta: 10.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-04-29 11:24:29,513 INFO L158 Benchmark]: TraceAbstraction took 1192.89ms. Allocated memory is still 117.4MB. Free memory was 64.1MB in the beginning and 83.6MB in the end (delta: -19.5MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-29 11:24:29,513 INFO L158 Benchmark]: Witness Printer took 2.64ms. Allocated memory is still 117.4MB. Free memory was 83.6MB in the beginning and 83.6MB in the end (delta: 15.1kB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-29 11:24:29,514 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 2.63ms. Allocated memory is still 83.9MB. Free memory is still 61.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 175.54ms. Allocated memory is still 117.4MB. Free memory was 92.0MB in the beginning and 78.4MB in the end (delta: 13.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 29.20ms. Allocated memory is still 117.4MB. Free memory was 78.4MB in the beginning and 77.0MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 37.37ms. Allocated memory is still 117.4MB. Free memory was 77.0MB in the beginning and 75.4MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 244.58ms. Allocated memory is still 117.4MB. Free memory was 75.4MB in the beginning and 64.6MB in the end (delta: 10.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 1192.89ms. Allocated memory is still 117.4MB. Free memory was 64.1MB in the beginning and 83.6MB in the end (delta: -19.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 2.64ms. Allocated memory is still 117.4MB. Free memory was 83.6MB in the beginning and 83.6MB in the end (delta: 15.1kB). 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: 7]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 7. Possible FailurePath: [L9-L18] union { void *p0; struct { char c[2]; void *p1; void *p2; } str; } data; [L21] data.p0 = malloc(37U) [L24] data.str.p2 = &data [L27] data.str.c[1] = sizeof data.str.p1 [L29] return 0; [L29] 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. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 17 locations, 16 edges, 7 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 7 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 7 mSDsluCounter, 14 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 19 IncrementalHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 11 mSDtfsCounter, 19 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred in iteration=0, InterpolantAutomatonStates: 6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 4 ConstructedInterpolants, 1 QuantifiedInterpolants, 27 SizeOfPredicates, 2 NumberOfNonLiveVariables, 40 ConjunctsInSsa, 10 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2025-04-29 11:24:29,526 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample