./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/array-memsafety/lis_unsafe.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version e2fb8bed 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 ../sv-benchmarks/c/array-memsafety/lis_unsafe.i -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 302a384d858b88c7c93de8a2b1030a1c448a13b5bf510dfc42e11e1c01d4bd66 --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-08 22:39:04,043 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-08 22:39:04,099 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2025-03-08 22:39:04,104 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-08 22:39:04,104 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-08 22:39:04,125 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-08 22:39:04,126 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-08 22:39:04,126 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-08 22:39:04,127 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-08 22:39:04,127 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-08 22:39:04,127 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-08 22:39:04,127 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-08 22:39:04,128 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-08 22:39:04,128 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-08 22:39:04,128 INFO L153 SettingsManager]: * Use SBE=true [2025-03-08 22:39:04,128 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-08 22:39:04,129 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-08 22:39:04,129 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-08 22:39:04,129 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-08 22:39:04,129 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-08 22:39:04,129 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-03-08 22:39:04,129 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-03-08 22:39:04,129 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-03-08 22:39:04,129 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-08 22:39:04,129 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-03-08 22:39:04,129 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-08 22:39:04,129 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-08 22:39:04,129 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-08 22:39:04,129 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-08 22:39:04,130 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-08 22:39:04,130 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-08 22:39:04,130 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-08 22:39:04,130 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-08 22:39:04,130 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 22:39:04,130 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-08 22:39:04,130 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-08 22:39:04,130 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-08 22:39:04,131 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-08 22:39:04,131 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-08 22:39:04,131 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-08 22:39:04,131 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-08 22:39:04,131 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-08 22:39:04,131 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 -> 302a384d858b88c7c93de8a2b1030a1c448a13b5bf510dfc42e11e1c01d4bd66 [2025-03-08 22:39:04,346 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-08 22:39:04,353 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-08 22:39:04,354 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-08 22:39:04,355 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-08 22:39:04,355 INFO L274 PluginConnector]: CDTParser initialized [2025-03-08 22:39:04,357 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-memsafety/lis_unsafe.i [2025-03-08 22:39:05,498 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7a15a46f6/c65156b12ec2473f8a6ff70b2a9b58c5/FLAGd763ad5ab [2025-03-08 22:39:05,767 INFO L384 CDTParser]: Found 1 translation units. [2025-03-08 22:39:05,768 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-memsafety/lis_unsafe.i [2025-03-08 22:39:05,776 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7a15a46f6/c65156b12ec2473f8a6ff70b2a9b58c5/FLAGd763ad5ab [2025-03-08 22:39:06,053 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7a15a46f6/c65156b12ec2473f8a6ff70b2a9b58c5 [2025-03-08 22:39:06,055 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-08 22:39:06,056 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-08 22:39:06,057 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-08 22:39:06,057 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-08 22:39:06,060 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-08 22:39:06,060 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 10:39:06" (1/1) ... [2025-03-08 22:39:06,061 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c78adea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:39:06, skipping insertion in model container [2025-03-08 22:39:06,061 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 10:39:06" (1/1) ... [2025-03-08 22:39:06,085 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-08 22:39:06,244 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:39:06,245 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:39:06,256 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 22:39:06,263 INFO L200 MainTranslator]: Completed pre-run [2025-03-08 22:39:06,303 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 22:39:06,323 INFO L204 MainTranslator]: Completed translation [2025-03-08 22:39:06,324 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:39:06 WrapperNode [2025-03-08 22:39:06,324 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-08 22:39:06,324 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-08 22:39:06,324 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-08 22:39:06,325 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-08 22:39:06,329 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:39:06" (1/1) ... [2025-03-08 22:39:06,335 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:39:06" (1/1) ... [2025-03-08 22:39:06,351 INFO L138 Inliner]: procedures = 116, calls = 18, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 89 [2025-03-08 22:39:06,351 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-08 22:39:06,351 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-08 22:39:06,351 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-08 22:39:06,352 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-08 22:39:06,357 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:39:06" (1/1) ... [2025-03-08 22:39:06,357 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:39:06" (1/1) ... [2025-03-08 22:39:06,360 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:39:06" (1/1) ... [2025-03-08 22:39:06,374 INFO L175 MemorySlicer]: Split 11 memory accesses to 3 slices as follows [2, 7, 2]. 64 percent of accesses are in the largest equivalence class. The 0 initializations are split as follows [0, 0, 0]. The 4 writes are split as follows [0, 2, 2]. [2025-03-08 22:39:06,374 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:39:06" (1/1) ... [2025-03-08 22:39:06,374 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:39:06" (1/1) ... [2025-03-08 22:39:06,379 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:39:06" (1/1) ... [2025-03-08 22:39:06,379 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:39:06" (1/1) ... [2025-03-08 22:39:06,380 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:39:06" (1/1) ... [2025-03-08 22:39:06,381 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:39:06" (1/1) ... [2025-03-08 22:39:06,382 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-08 22:39:06,383 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-08 22:39:06,383 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-08 22:39:06,383 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-08 22:39:06,383 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:39:06" (1/1) ... [2025-03-08 22:39:06,387 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 22:39:06,395 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 22:39:06,406 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) [2025-03-08 22:39:06,407 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 [2025-03-08 22:39:06,421 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-08 22:39:06,421 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-08 22:39:06,421 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-03-08 22:39:06,422 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-08 22:39:06,422 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-08 22:39:06,422 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-03-08 22:39:06,422 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-08 22:39:06,422 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-08 22:39:06,422 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-08 22:39:06,422 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-08 22:39:06,492 INFO L256 CfgBuilder]: Building ICFG [2025-03-08 22:39:06,493 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-08 22:39:06,709 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L535: havoc main_#t~ret17#1; [2025-03-08 22:39:06,719 INFO L? ?]: Removed 77 outVars from TransFormulas that were not future-live. [2025-03-08 22:39:06,719 INFO L307 CfgBuilder]: Performing block encoding [2025-03-08 22:39:06,726 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-08 22:39:06,727 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-08 22:39:06,728 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 10:39:06 BoogieIcfgContainer [2025-03-08 22:39:06,728 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-08 22:39:06,730 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-08 22:39:06,730 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-08 22:39:06,733 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-08 22:39:06,733 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.03 10:39:06" (1/3) ... [2025-03-08 22:39:06,734 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c08f919 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 10:39:06, skipping insertion in model container [2025-03-08 22:39:06,734 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:39:06" (2/3) ... [2025-03-08 22:39:06,735 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c08f919 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 10:39:06, skipping insertion in model container [2025-03-08 22:39:06,735 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 10:39:06" (3/3) ... [2025-03-08 22:39:06,736 INFO L128 eAbstractionObserver]: Analyzing ICFG lis_unsafe.i [2025-03-08 22:39:06,747 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-08 22:39:06,748 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG lis_unsafe.i that has 1 procedures, 67 locations, 1 initial locations, 4 loop locations, and 29 error locations. [2025-03-08 22:39:06,771 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-08 22:39:06,779 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=None, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@7bf9cb25, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-08 22:39:06,779 INFO L334 AbstractCegarLoop]: Starting to check reachability of 29 error locations. [2025-03-08 22:39:06,781 INFO L276 IsEmpty]: Start isEmpty. Operand has 67 states, 37 states have (on average 2.0) internal successors, (74), 66 states have internal predecessors, (74), 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) [2025-03-08 22:39:06,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2025-03-08 22:39:06,784 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 22:39:06,784 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2025-03-08 22:39:06,785 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr27REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 26 more)] === [2025-03-08 22:39:06,788 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:39:06,788 INFO L85 PathProgramCache]: Analyzing trace with hash -1189721315, now seen corresponding path program 1 times [2025-03-08 22:39:06,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:39:06,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095107180] [2025-03-08 22:39:06,793 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:39:06,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:39:06,841 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-03-08 22:39:06,859 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-03-08 22:39:06,859 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:39:06,859 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:39:06,978 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 22:39:06,979 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:39:06,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095107180] [2025-03-08 22:39:06,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1095107180] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:39:06,981 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:39:06,981 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-08 22:39:06,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701317210] [2025-03-08 22:39:06,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:39:06,985 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 22:39:06,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:39:07,003 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 22:39:07,003 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 22:39:07,005 INFO L87 Difference]: Start difference. First operand has 67 states, 37 states have (on average 2.0) internal successors, (74), 66 states have internal predecessors, (74), 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 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 22:39:07,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 22:39:07,090 INFO L93 Difference]: Finished difference Result 59 states and 66 transitions. [2025-03-08 22:39:07,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 22:39:07,092 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2025-03-08 22:39:07,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 22:39:07,096 INFO L225 Difference]: With dead ends: 59 [2025-03-08 22:39:07,096 INFO L226 Difference]: Without dead ends: 57 [2025-03-08 22:39:07,098 INFO L434 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 [2025-03-08 22:39:07,099 INFO L435 NwaCegarLoop]: 41 mSDtfsCounter, 41 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-08 22:39:07,100 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 48 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-08 22:39:07,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2025-03-08 22:39:07,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2025-03-08 22:39:07,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 36 states have (on average 1.7777777777777777) internal successors, (64), 56 states have internal predecessors, (64), 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) [2025-03-08 22:39:07,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 64 transitions. [2025-03-08 22:39:07,125 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 64 transitions. Word has length 6 [2025-03-08 22:39:07,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 22:39:07,125 INFO L471 AbstractCegarLoop]: Abstraction has 57 states and 64 transitions. [2025-03-08 22:39:07,125 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 22:39:07,125 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 64 transitions. [2025-03-08 22:39:07,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2025-03-08 22:39:07,127 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 22:39:07,127 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2025-03-08 22:39:07,128 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-08 22:39:07,129 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr28REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 26 more)] === [2025-03-08 22:39:07,129 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:39:07,129 INFO L85 PathProgramCache]: Analyzing trace with hash -1189721314, now seen corresponding path program 1 times [2025-03-08 22:39:07,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:39:07,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [510398535] [2025-03-08 22:39:07,130 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:39:07,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:39:07,141 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-03-08 22:39:07,160 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-03-08 22:39:07,161 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:39:07,161 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:39:07,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 22:39:07,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:39:07,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [510398535] [2025-03-08 22:39:07,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [510398535] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:39:07,390 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:39:07,390 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-08 22:39:07,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64727775] [2025-03-08 22:39:07,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:39:07,391 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 22:39:07,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:39:07,392 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 22:39:07,392 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-08 22:39:07,392 INFO L87 Difference]: Start difference. First operand 57 states and 64 transitions. Second operand has 5 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 22:39:07,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 22:39:07,464 INFO L93 Difference]: Finished difference Result 63 states and 72 transitions. [2025-03-08 22:39:07,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 22:39:07,465 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2025-03-08 22:39:07,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 22:39:07,466 INFO L225 Difference]: With dead ends: 63 [2025-03-08 22:39:07,466 INFO L226 Difference]: Without dead ends: 63 [2025-03-08 22:39:07,467 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-08 22:39:07,467 INFO L435 NwaCegarLoop]: 57 mSDtfsCounter, 7 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-08 22:39:07,468 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 136 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-08 22:39:07,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2025-03-08 22:39:07,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 60. [2025-03-08 22:39:07,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 39 states have (on average 1.7435897435897436) internal successors, (68), 59 states have internal predecessors, (68), 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) [2025-03-08 22:39:07,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 68 transitions. [2025-03-08 22:39:07,472 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 68 transitions. Word has length 6 [2025-03-08 22:39:07,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 22:39:07,472 INFO L471 AbstractCegarLoop]: Abstraction has 60 states and 68 transitions. [2025-03-08 22:39:07,472 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 22:39:07,472 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 68 transitions. [2025-03-08 22:39:07,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2025-03-08 22:39:07,473 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 22:39:07,474 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2025-03-08 22:39:07,474 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-08 22:39:07,474 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr28REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 26 more)] === [2025-03-08 22:39:07,474 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:39:07,474 INFO L85 PathProgramCache]: Analyzing trace with hash -1189691523, now seen corresponding path program 1 times [2025-03-08 22:39:07,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:39:07,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371803463] [2025-03-08 22:39:07,474 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:39:07,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:39:07,481 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-03-08 22:39:07,489 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-03-08 22:39:07,489 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:39:07,489 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-08 22:39:07,489 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-08 22:39:07,493 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-03-08 22:39:07,501 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-03-08 22:39:07,501 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:39:07,501 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-08 22:39:07,514 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-08 22:39:07,514 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-08 22:39:07,515 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr28REQUIRES_VIOLATIONMEMORY_DEREFERENCE (28 of 29 remaining) [2025-03-08 22:39:07,516 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (27 of 29 remaining) [2025-03-08 22:39:07,518 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE (26 of 29 remaining) [2025-03-08 22:39:07,518 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (25 of 29 remaining) [2025-03-08 22:39:07,518 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_FREE (24 of 29 remaining) [2025-03-08 22:39:07,518 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_FREE (23 of 29 remaining) [2025-03-08 22:39:07,518 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_FREE (22 of 29 remaining) [2025-03-08 22:39:07,518 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_FREE (21 of 29 remaining) [2025-03-08 22:39:07,521 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (20 of 29 remaining) [2025-03-08 22:39:07,521 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (19 of 29 remaining) [2025-03-08 22:39:07,521 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (18 of 29 remaining) [2025-03-08 22:39:07,521 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (17 of 29 remaining) [2025-03-08 22:39:07,521 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (16 of 29 remaining) [2025-03-08 22:39:07,521 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (15 of 29 remaining) [2025-03-08 22:39:07,521 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 29 remaining) [2025-03-08 22:39:07,521 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 29 remaining) [2025-03-08 22:39:07,521 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 29 remaining) [2025-03-08 22:39:07,521 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 29 remaining) [2025-03-08 22:39:07,521 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 29 remaining) [2025-03-08 22:39:07,521 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 29 remaining) [2025-03-08 22:39:07,521 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 29 remaining) [2025-03-08 22:39:07,521 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 29 remaining) [2025-03-08 22:39:07,521 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 29 remaining) [2025-03-08 22:39:07,521 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 29 remaining) [2025-03-08 22:39:07,521 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 29 remaining) [2025-03-08 22:39:07,521 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr24REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 29 remaining) [2025-03-08 22:39:07,521 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr25REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 29 remaining) [2025-03-08 22:39:07,521 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr26REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 29 remaining) [2025-03-08 22:39:07,521 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr27REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 29 remaining) [2025-03-08 22:39:07,522 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-08 22:39:07,524 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2025-03-08 22:39:07,537 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-08 22:39:07,539 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.03 10:39:07 BoogieIcfgContainer [2025-03-08 22:39:07,540 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-08 22:39:07,541 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-08 22:39:07,541 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-08 22:39:07,541 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-08 22:39:07,542 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 10:39:06" (3/4) ... [2025-03-08 22:39:07,543 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2025-03-08 22:39:07,571 INFO L127 tionWitnessGenerator]: Generated YAML witness of length 4. [2025-03-08 22:39:07,603 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-08 22:39:07,604 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-03-08 22:39:07,604 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-08 22:39:07,605 INFO L158 Benchmark]: Toolchain (without parser) took 1548.45ms. Allocated memory is still 142.6MB. Free memory was 111.3MB in the beginning and 82.1MB in the end (delta: 29.2MB). Peak memory consumption was 31.0MB. Max. memory is 16.1GB. [2025-03-08 22:39:07,605 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 201.3MB. Free memory is still 124.2MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-08 22:39:07,605 INFO L158 Benchmark]: CACSL2BoogieTranslator took 267.24ms. Allocated memory is still 142.6MB. Free memory was 111.3MB in the beginning and 94.7MB in the end (delta: 16.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-08 22:39:07,605 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.59ms. Allocated memory is still 142.6MB. Free memory was 94.7MB in the beginning and 93.2MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-08 22:39:07,605 INFO L158 Benchmark]: Boogie Preprocessor took 30.68ms. Allocated memory is still 142.6MB. Free memory was 93.2MB in the beginning and 91.7MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-08 22:39:07,606 INFO L158 Benchmark]: IcfgBuilder took 345.58ms. Allocated memory is still 142.6MB. Free memory was 91.7MB in the beginning and 73.0MB in the end (delta: 18.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-03-08 22:39:07,606 INFO L158 Benchmark]: TraceAbstraction took 810.45ms. Allocated memory is still 142.6MB. Free memory was 72.5MB in the beginning and 87.4MB in the end (delta: -15.0MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-08 22:39:07,606 INFO L158 Benchmark]: Witness Printer took 63.18ms. Allocated memory is still 142.6MB. Free memory was 87.4MB in the beginning and 82.1MB in the end (delta: 5.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-08 22:39:07,608 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 201.3MB. Free memory is still 124.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 267.24ms. Allocated memory is still 142.6MB. Free memory was 111.3MB in the beginning and 94.7MB in the end (delta: 16.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 26.59ms. Allocated memory is still 142.6MB. Free memory was 94.7MB in the beginning and 93.2MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 30.68ms. Allocated memory is still 142.6MB. Free memory was 93.2MB in the beginning and 91.7MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 345.58ms. Allocated memory is still 142.6MB. Free memory was 91.7MB in the beginning and 73.0MB in the end (delta: 18.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 810.45ms. Allocated memory is still 142.6MB. Free memory was 72.5MB in the beginning and 87.4MB in the end (delta: -15.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 63.18ms. Allocated memory is still 142.6MB. Free memory was 87.4MB in the beginning and 82.1MB in the end (delta: 5.3MB). Peak memory consumption was 8.4MB. 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 - CounterExampleResult [Line: -1]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L531] int *a; [L532] int N = __VERIFIER_nondet_int(); [L533] COND FALSE !(N < 1) VAL [N=1073741824] [L535] CALL lis(a, N) [L514] int *best, *prev, i, j, max = 0; [L515] best = (int*) malloc(sizeof(int) * N) [L516] prev = (int*) malloc(sizeof(int) * N) [L517] i = 0 VAL [N=1073741824, a={1073741825:1073741826}, best={-2:0}, i=0, max=0, prev={-1:0}] [L517] COND TRUE i < N [L518] best[i] = 1 - UnprovableResult [Line: 530]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 527]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 527]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 527]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 526]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 526]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 526]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 67 locations, 74 edges, 29 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 48 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 48 mSDsluCounter, 184 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 86 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 96 IncrementalHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 98 mSDtfsCounter, 96 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=67occurred in iteration=0, InterpolantAutomatonStates: 7, 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, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 53 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 proved your program to be incorrect! [2025-03-08 22:39:07,624 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-deref)