./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/ldv-regression/test_union_cast-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version c00e63dc Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/ldv-regression/test_union_cast-1.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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 06d8e972fd3570f0a6f863e33caed64af1841db41ea5253d322a4e84273bf524 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 10:13:30,302 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 10:13:30,358 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2025-02-06 10:13:30,361 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 10:13:30,361 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 10:13:30,376 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 10:13:30,376 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 10:13:30,377 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 10:13:30,377 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 10:13:30,377 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 10:13:30,377 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 10:13:30,377 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 10:13:30,377 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 10:13:30,377 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 10:13:30,378 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 10:13:30,378 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 10:13:30,378 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 10:13:30,378 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 10:13:30,378 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 10:13:30,378 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 10:13:30,378 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-02-06 10:13:30,378 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-02-06 10:13:30,378 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-02-06 10:13:30,378 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 10:13:30,379 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-06 10:13:30,379 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-06 10:13:30,379 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 10:13:30,379 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 10:13:30,379 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 10:13:30,379 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 10:13:30,379 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 10:13:30,379 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 10:13:30,379 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 10:13:30,379 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 10:13:30,379 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 10:13:30,379 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 10:13:30,380 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 10:13:30,380 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 10:13:30,380 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 10:13:30,380 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 10:13:30,380 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 10:13:30,380 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 10:13:30,380 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-jdk21/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 -> 06d8e972fd3570f0a6f863e33caed64af1841db41ea5253d322a4e84273bf524 [2025-02-06 10:13:30,571 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 10:13:30,582 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 10:13:30,583 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 10:13:30,584 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 10:13:30,584 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 10:13:30,585 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-regression/test_union_cast-1.i [2025-02-06 10:13:31,685 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/a5612044d/3924be6fbe8442c396d2f071d8dde97d/FLAG36b6d69c0 [2025-02-06 10:13:31,980 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 10:13:31,981 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/ldv-regression/test_union_cast-1.i [2025-02-06 10:13:31,991 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/a5612044d/3924be6fbe8442c396d2f071d8dde97d/FLAG36b6d69c0 [2025-02-06 10:13:32,276 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/a5612044d/3924be6fbe8442c396d2f071d8dde97d [2025-02-06 10:13:32,278 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 10:13:32,280 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 10:13:32,281 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 10:13:32,282 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 10:13:32,285 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 10:13:32,286 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 10:13:32" (1/1) ... [2025-02-06 10:13:32,287 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1998856b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 10:13:32, skipping insertion in model container [2025-02-06 10:13:32,287 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 10:13:32" (1/1) ... [2025-02-06 10:13:32,299 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 10:13:32,425 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 10:13:32,432 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 10:13:32,441 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 10:13:32,450 INFO L204 MainTranslator]: Completed translation [2025-02-06 10:13:32,451 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 10:13:32 WrapperNode [2025-02-06 10:13:32,451 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 10:13:32,452 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 10:13:32,452 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 10:13:32,452 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 10:13:32,456 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 10:13:32" (1/1) ... [2025-02-06 10:13:32,460 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 10:13:32" (1/1) ... [2025-02-06 10:13:32,469 INFO L138 Inliner]: procedures = 17, calls = 14, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 31 [2025-02-06 10:13:32,470 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 10:13:32,470 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 10:13:32,470 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 10:13:32,470 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 10:13:32,475 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 10:13:32" (1/1) ... [2025-02-06 10:13:32,475 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 10:13:32" (1/1) ... [2025-02-06 10:13:32,476 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 10:13:32" (1/1) ... [2025-02-06 10:13:32,483 INFO L175 MemorySlicer]: Split 5 memory accesses to 2 slices as follows [2, 3]. 60 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 2 writes are split as follows [0, 2]. [2025-02-06 10:13:32,483 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 10:13:32" (1/1) ... [2025-02-06 10:13:32,484 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 10:13:32" (1/1) ... [2025-02-06 10:13:32,487 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 10:13:32" (1/1) ... [2025-02-06 10:13:32,487 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 10:13:32" (1/1) ... [2025-02-06 10:13:32,488 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 10:13:32" (1/1) ... [2025-02-06 10:13:32,488 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 10:13:32" (1/1) ... [2025-02-06 10:13:32,489 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 10:13:32,490 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 10:13:32,490 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 10:13:32,490 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 10:13:32,491 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 10:13:32" (1/1) ... [2025-02-06 10:13:32,494 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 10:13:32,501 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 10:13:32,516 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-06 10:13:32,518 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-06 10:13:32,537 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 10:13:32,537 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-06 10:13:32,537 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-06 10:13:32,537 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-06 10:13:32,537 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-02-06 10:13:32,537 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-02-06 10:13:32,537 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2025-02-06 10:13:32,537 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2025-02-06 10:13:32,537 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 10:13:32,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 10:13:32,537 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-02-06 10:13:32,537 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-02-06 10:13:32,537 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-06 10:13:32,626 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 10:13:32,628 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 10:13:32,700 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L36: call ULTIMATE.dealloc(main_~#var~0#1.base, main_~#var~0#1.offset);havoc main_~#var~0#1.base, main_~#var~0#1.offset; [2025-02-06 10:13:32,704 INFO L? ?]: Removed 18 outVars from TransFormulas that were not future-live. [2025-02-06 10:13:32,705 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 10:13:32,710 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 10:13:32,710 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 10:13:32,711 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 10:13:32 BoogieIcfgContainer [2025-02-06 10:13:32,711 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 10:13:32,712 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 10:13:32,712 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 10:13:32,715 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 10:13:32,716 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 10:13:32" (1/3) ... [2025-02-06 10:13:32,716 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42a0c2cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 10:13:32, skipping insertion in model container [2025-02-06 10:13:32,716 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 10:13:32" (2/3) ... [2025-02-06 10:13:32,717 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42a0c2cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 10:13:32, skipping insertion in model container [2025-02-06 10:13:32,717 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 10:13:32" (3/3) ... [2025-02-06 10:13:32,718 INFO L128 eAbstractionObserver]: Analyzing ICFG test_union_cast-1.i [2025-02-06 10:13:32,728 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 10:13:32,730 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG test_union_cast-1.i that has 1 procedures, 26 locations, 1 initial locations, 1 loop locations, and 9 error locations. [2025-02-06 10:13:32,761 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 10:13:32,770 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;@282738fd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 10:13:32,771 INFO L334 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2025-02-06 10:13:32,774 INFO L276 IsEmpty]: Start isEmpty. Operand has 26 states, 16 states have (on average 1.75) internal successors, (28), 25 states have internal predecessors, (28), 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) [2025-02-06 10:13:32,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2025-02-06 10:13:32,777 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 10:13:32,778 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2025-02-06 10:13:32,778 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 6 more)] === [2025-02-06 10:13:32,783 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 10:13:32,783 INFO L85 PathProgramCache]: Analyzing trace with hash 1815134, now seen corresponding path program 1 times [2025-02-06 10:13:32,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 10:13:32,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067464715] [2025-02-06 10:13:32,790 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 10:13:32,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 10:13:32,840 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-06 10:13:32,848 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-06 10:13:32,849 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 10:13:32,849 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 10:13:32,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 10:13:32,874 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 10:13:32,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067464715] [2025-02-06 10:13:32,875 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1067464715] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 10:13:32,875 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 10:13:32,875 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 10:13:32,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477030770] [2025-02-06 10:13:32,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 10:13:32,879 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-06 10:13:32,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 10:13:32,898 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-06 10:13:32,899 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-06 10:13:32,900 INFO L87 Difference]: Start difference. First operand has 26 states, 16 states have (on average 1.75) internal successors, (28), 25 states have internal predecessors, (28), 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 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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) [2025-02-06 10:13:32,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 10:13:32,906 INFO L93 Difference]: Finished difference Result 5 states and 4 transitions. [2025-02-06 10:13:32,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-06 10:13:32,908 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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 4 [2025-02-06 10:13:32,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 10:13:32,911 INFO L225 Difference]: With dead ends: 5 [2025-02-06 10:13:32,911 INFO L226 Difference]: Without dead ends: 5 [2025-02-06 10:13:32,914 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-06 10:13:32,916 INFO L435 NwaCegarLoop]: 4 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-06 10:13:32,916 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 10:13:32,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5 states. [2025-02-06 10:13:32,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5 to 5. [2025-02-06 10:13:32,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 4 states have (on average 1.0) internal successors, (4), 4 states have internal predecessors, (4), 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) [2025-02-06 10:13:32,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 4 transitions. [2025-02-06 10:13:32,938 INFO L78 Accepts]: Start accepts. Automaton has 5 states and 4 transitions. Word has length 4 [2025-02-06 10:13:32,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 10:13:32,938 INFO L471 AbstractCegarLoop]: Abstraction has 5 states and 4 transitions. [2025-02-06 10:13:32,938 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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) [2025-02-06 10:13:32,938 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states and 4 transitions. [2025-02-06 10:13:32,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2025-02-06 10:13:32,939 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 10:13:32,939 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2025-02-06 10:13:32,939 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-06 10:13:32,939 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONUNSUPPORTED_FEATURE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 6 more)] === [2025-02-06 10:13:32,939 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 10:13:32,939 INFO L85 PathProgramCache]: Analyzing trace with hash 1815231, now seen corresponding path program 1 times [2025-02-06 10:13:32,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 10:13:32,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [863225172] [2025-02-06 10:13:32,940 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 10:13:32,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 10:13:32,946 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-06 10:13:32,950 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-06 10:13:32,952 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 10:13:32,952 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 10:13:32,952 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-06 10:13:32,954 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-06 10:13:32,959 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-06 10:13:32,959 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 10:13:32,959 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 10:13:32,974 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-06 10:13:32,974 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-02-06 10:13:32,975 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONUNSUPPORTED_FEATURE (8 of 9 remaining) [2025-02-06 10:13:32,977 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (7 of 9 remaining) [2025-02-06 10:13:32,977 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (6 of 9 remaining) [2025-02-06 10:13:32,977 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 9 remaining) [2025-02-06 10:13:32,977 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 9 remaining) [2025-02-06 10:13:32,977 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 9 remaining) [2025-02-06 10:13:32,978 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 9 remaining) [2025-02-06 10:13:32,978 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 9 remaining) [2025-02-06 10:13:32,978 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 9 remaining) [2025-02-06 10:13:32,978 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-06 10:13:32,982 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2025-02-06 10:13:32,990 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-06 10:13:32,993 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.02 10:13:32 BoogieIcfgContainer [2025-02-06 10:13:32,993 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-06 10:13:32,994 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-06 10:13:32,995 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-06 10:13:32,995 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-06 10:13:32,995 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 10:13:32" (3/4) ... [2025-02-06 10:13:32,997 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-02-06 10:13:32,998 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-06 10:13:32,999 INFO L158 Benchmark]: Toolchain (without parser) took 719.95ms. Allocated memory is still 142.6MB. Free memory was 111.8MB in the beginning and 67.2MB in the end (delta: 44.5MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2025-02-06 10:13:33,000 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 201.3MB. Free memory is still 123.8MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 10:13:33,000 INFO L158 Benchmark]: CACSL2BoogieTranslator took 169.88ms. Allocated memory is still 142.6MB. Free memory was 111.3MB in the beginning and 99.3MB in the end (delta: 12.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-06 10:13:33,000 INFO L158 Benchmark]: Boogie Procedure Inliner took 18.01ms. Allocated memory is still 142.6MB. Free memory was 99.3MB in the beginning and 98.4MB in the end (delta: 874.6kB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 10:13:33,001 INFO L158 Benchmark]: Boogie Preprocessor took 19.10ms. Allocated memory is still 142.6MB. Free memory was 98.4MB in the beginning and 97.0MB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-06 10:13:33,001 INFO L158 Benchmark]: IcfgBuilder took 221.03ms. Allocated memory is still 142.6MB. Free memory was 97.0MB in the beginning and 85.5MB in the end (delta: 11.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-06 10:13:33,002 INFO L158 Benchmark]: TraceAbstraction took 281.24ms. Allocated memory is still 142.6MB. Free memory was 85.0MB in the beginning and 67.7MB in the end (delta: 17.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-06 10:13:33,003 INFO L158 Benchmark]: Witness Printer took 3.69ms. Allocated memory is still 142.6MB. Free memory is still 67.2MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 10:13:33,003 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 201.3MB. Free memory is still 123.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 169.88ms. Allocated memory is still 142.6MB. Free memory was 111.3MB in the beginning and 99.3MB in the end (delta: 12.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 18.01ms. Allocated memory is still 142.6MB. Free memory was 99.3MB in the beginning and 98.4MB in the end (delta: 874.6kB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 19.10ms. Allocated memory is still 142.6MB. Free memory was 98.4MB in the beginning and 97.0MB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * IcfgBuilder took 221.03ms. Allocated memory is still 142.6MB. Free memory was 97.0MB in the beginning and 85.5MB in the end (delta: 11.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 281.24ms. Allocated memory is still 142.6MB. Free memory was 85.0MB in the beginning and 67.7MB in the end (delta: 17.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 3.69ms. Allocated memory is still 142.6MB. Free memory is still 67.2MB. 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: 36]: Unable to prove that there are no unsupported features in the program Unable to prove that there are no unsupported features in the program Reason: overapproximation of union with floats in the HoenickeLindenmann_Original memory model at line 36. Possible FailurePath: [L29] int CURRENTLY_SAFE; VAL [CURRENTLY_SAFE=0] [L36] union X var; VAL [CURRENTLY_SAFE=0] - UnprovableResult [Line: 35]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 12]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed 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, 26 locations, 9 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 4 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 4 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 8 NumberOfCodeBlocks, 8 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 3 ConstructedInterpolants, 0 QuantifiedInterpolants, 3 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 [2025-02-06 10:13:33,019 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/ldv-regression/test_union_cast-1.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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 06d8e972fd3570f0a6f863e33caed64af1841db41ea5253d322a4e84273bf524 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 10:13:35,266 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 10:13:35,357 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2025-02-06 10:13:35,365 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 10:13:35,369 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 10:13:35,386 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 10:13:35,387 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 10:13:35,387 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 10:13:35,388 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 10:13:35,388 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 10:13:35,388 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 10:13:35,388 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 10:13:35,388 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 10:13:35,388 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 10:13:35,388 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 10:13:35,389 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 10:13:35,389 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 10:13:35,389 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 10:13:35,389 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 10:13:35,389 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 10:13:35,389 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-02-06 10:13:35,389 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-02-06 10:13:35,389 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-02-06 10:13:35,389 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 10:13:35,389 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-06 10:13:35,389 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-02-06 10:13:35,389 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-02-06 10:13:35,390 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-06 10:13:35,390 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 10:13:35,390 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 10:13:35,390 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 10:13:35,390 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 10:13:35,390 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 10:13:35,390 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 10:13:35,390 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 10:13:35,390 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 10:13:35,390 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 10:13:35,390 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 10:13:35,390 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-02-06 10:13:35,390 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-02-06 10:13:35,390 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 10:13:35,390 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 10:13:35,391 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 10:13:35,391 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 10:13:35,391 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-jdk21/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 -> 06d8e972fd3570f0a6f863e33caed64af1841db41ea5253d322a4e84273bf524 [2025-02-06 10:13:35,676 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 10:13:35,684 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 10:13:35,689 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 10:13:35,690 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 10:13:35,691 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 10:13:35,693 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-regression/test_union_cast-1.i [2025-02-06 10:13:36,922 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/029d3522c/c6b3361c878f4c7ca9cc9d3b57e31c6f/FLAG35292fe04 [2025-02-06 10:13:37,121 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 10:13:37,123 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/ldv-regression/test_union_cast-1.i [2025-02-06 10:13:37,128 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/029d3522c/c6b3361c878f4c7ca9cc9d3b57e31c6f/FLAG35292fe04 [2025-02-06 10:13:37,504 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/029d3522c/c6b3361c878f4c7ca9cc9d3b57e31c6f [2025-02-06 10:13:37,506 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 10:13:37,507 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 10:13:37,512 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 10:13:37,512 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 10:13:37,515 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 10:13:37,516 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 10:13:37" (1/1) ... [2025-02-06 10:13:37,519 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b9c4233 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 10:13:37, skipping insertion in model container [2025-02-06 10:13:37,519 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 10:13:37" (1/1) ... [2025-02-06 10:13:37,540 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 10:13:37,749 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 10:13:37,764 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 10:13:37,796 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 10:13:37,820 INFO L204 MainTranslator]: Completed translation [2025-02-06 10:13:37,822 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 10:13:37 WrapperNode [2025-02-06 10:13:37,822 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 10:13:37,823 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 10:13:37,823 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 10:13:37,823 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 10:13:37,832 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 10:13:37" (1/1) ... [2025-02-06 10:13:37,841 ERROR L1139 TypeChecker]: : Undeclared function ~fp~64 in FunctionApplication[~fp~64,[BitVectorAccessExpression[IdentifierExpression[#valueAsBitvector,QUANTIFIED],64,63],BitVectorAccessExpression[IdentifierExpression[#valueAsBitvector,QUANTIFIED],63,52],BitVectorAccessExpression[IdentifierExpression[#valueAsBitvector,QUANTIFIED],52,0]]] [2025-02-06 10:13:37,848 ERROR L1139 TypeChecker]: : Undeclared function ~fp~64 in FunctionApplication[~fp~64,[BitVectorAccessExpression[BinaryExpression[BITVECCONCAT,ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#ptr,],base],FunctionApplication[~bvadd~32,[BitvecLiteral[4,32],StructAccessExpression[IdentifierExpression[#ptr,],offset]]]]]]],ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IdentifierExpression[#ptr,]]]],64,63],BitVectorAccessExpression[BinaryExpression[BITVECCONCAT,ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#ptr,],base],FunctionApplication[~bvadd~32,[BitvecLiteral[4,32],StructAccessExpression[IdentifierExpression[#ptr,],offset]]]]]]],ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IdentifierExpression[#ptr,]]]],63,52],BitVectorAccessExpression[BinaryExpression[BITVECCONCAT,ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#ptr,],base],FunctionApplication[~bvadd~32,[BitvecLiteral[4,32],StructAccessExpression[IdentifierExpression[#ptr,],offset]]]]]]],ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IdentifierExpression[#ptr,]]]],52,0]]] [2025-02-06 10:13:37,850 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 10:13:37" (1/1) ... [2025-02-06 10:13:37,853 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 10:13:37,854 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2025-02-06 10:13:37,859 INFO L158 Benchmark]: Toolchain (without parser) took 347.46ms. Allocated memory is still 117.4MB. Free memory was 92.6MB in the beginning and 79.2MB in the end (delta: 13.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-06 10:13:37,859 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 83.9MB. Free memory was 61.5MB in the beginning and 61.5MB in the end (delta: 33.6kB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 10:13:37,860 INFO L158 Benchmark]: CACSL2BoogieTranslator took 310.83ms. Allocated memory is still 117.4MB. Free memory was 92.4MB in the beginning and 79.9MB in the end (delta: 12.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-06 10:13:37,860 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.57ms. Allocated memory is still 117.4MB. Free memory was 79.9MB in the beginning and 79.2MB in the end (delta: 734.9kB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 10:13:37,861 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 83.9MB. Free memory was 61.5MB in the beginning and 61.5MB in the end (delta: 33.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 310.83ms. Allocated memory is still 117.4MB. Free memory was 92.4MB in the beginning and 79.9MB in the end (delta: 12.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.57ms. Allocated memory is still 117.4MB. Free memory was 79.9MB in the beginning and 79.2MB in the end (delta: 734.9kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - TypeErrorResult [Line: -1]: Type Error Undeclared function ~fp~64 in FunctionApplication[~fp~64,[BitVectorAccessExpression[IdentifierExpression[#valueAsBitvector,QUANTIFIED],64,63],BitVectorAccessExpression[IdentifierExpression[#valueAsBitvector,QUANTIFIED],63,52],BitVectorAccessExpression[IdentifierExpression[#valueAsBitvector,QUANTIFIED],52,0]]] - TypeErrorResult [Line: -1]: Type Error Undeclared function ~fp~64 in FunctionApplication[~fp~64,[BitVectorAccessExpression[BinaryExpression[BITVECCONCAT,ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#ptr,],base],FunctionApplication[~bvadd~32,[BitvecLiteral[4,32],StructAccessExpression[IdentifierExpression[#ptr,],offset]]]]]]],ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IdentifierExpression[#ptr,]]]],64,63],BitVectorAccessExpression[BinaryExpression[BITVECCONCAT,ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#ptr,],base],FunctionApplication[~bvadd~32,[BitvecLiteral[4,32],StructAccessExpression[IdentifierExpression[#ptr,],offset]]]]]]],ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IdentifierExpression[#ptr,]]]],63,52],BitVectorAccessExpression[BinaryExpression[BITVECCONCAT,ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#ptr,],base],FunctionApplication[~bvadd~32,[BitvecLiteral[4,32],StructAccessExpression[IdentifierExpression[#ptr,],offset]]]]]]],ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IdentifierExpression[#ptr,]]]],52,0]]] RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: TYPE ERROR