./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/pthread-ext/03_incdec.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 48c9605d 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/pthread-ext/03_incdec.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 c7242322569cf2f27ee72f2a65e0d58ced23407c575f0c8898b19424239a034d --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 08:11:45,604 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 08:11:45,640 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2025-02-08 08:11:45,643 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 08:11:45,643 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 08:11:45,659 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 08:11:45,660 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 08:11:45,660 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 08:11:45,660 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 08:11:45,660 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 08:11:45,660 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 08:11:45,660 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 08:11:45,661 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 08:11:45,661 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 08:11:45,661 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 08:11:45,661 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 08:11:45,661 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 08:11:45,661 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 08:11:45,661 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 08:11:45,661 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 08:11:45,661 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-02-08 08:11:45,661 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-02-08 08:11:45,662 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-02-08 08:11:45,662 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 08:11:45,662 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-08 08:11:45,662 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 08:11:45,662 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 08:11:45,662 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 08:11:45,662 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 08:11:45,662 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 08:11:45,662 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 08:11:45,662 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 08:11:45,662 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 08:11:45,662 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 08:11:45,663 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 08:11:45,663 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 08:11:45,663 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 08:11:45,663 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 08:11:45,663 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 08:11:45,663 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 08:11:45,663 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 08:11:45,663 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 08:11:45,663 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 -> c7242322569cf2f27ee72f2a65e0d58ced23407c575f0c8898b19424239a034d [2025-02-08 08:11:45,860 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 08:11:45,873 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 08:11:45,878 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 08:11:45,879 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 08:11:45,879 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 08:11:45,880 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-ext/03_incdec.i [2025-02-08 08:11:47,056 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/c4284db9b/392a41dc2dd7455a99895b6970f3d79a/FLAG3df9dc61c [2025-02-08 08:11:47,344 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 08:11:47,346 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-ext/03_incdec.i [2025-02-08 08:11:47,358 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/c4284db9b/392a41dc2dd7455a99895b6970f3d79a/FLAG3df9dc61c [2025-02-08 08:11:47,645 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/c4284db9b/392a41dc2dd7455a99895b6970f3d79a [2025-02-08 08:11:47,646 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 08:11:47,648 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 08:11:47,649 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 08:11:47,650 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 08:11:47,653 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 08:11:47,653 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 08:11:47" (1/1) ... [2025-02-08 08:11:47,655 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c61e2f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:11:47, skipping insertion in model container [2025-02-08 08:11:47,655 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 08:11:47" (1/1) ... [2025-02-08 08:11:47,678 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 08:11:47,920 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 08:11:47,932 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 08:11:47,973 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 08:11:48,001 INFO L204 MainTranslator]: Completed translation [2025-02-08 08:11:48,001 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:11:48 WrapperNode [2025-02-08 08:11:48,001 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 08:11:48,002 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 08:11:48,002 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 08:11:48,002 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 08:11:48,006 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:11:48" (1/1) ... [2025-02-08 08:11:48,012 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:11:48" (1/1) ... [2025-02-08 08:11:48,023 INFO L138 Inliner]: procedures = 164, calls = 27, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 98 [2025-02-08 08:11:48,023 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 08:11:48,024 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 08:11:48,024 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 08:11:48,024 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 08:11:48,029 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:11:48" (1/1) ... [2025-02-08 08:11:48,029 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:11:48" (1/1) ... [2025-02-08 08:11:48,031 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:11:48" (1/1) ... [2025-02-08 08:11:48,037 INFO L175 MemorySlicer]: Split 7 memory accesses to 2 slices as follows [2, 5]. 71 percent of accesses are in the largest equivalence class. The 7 initializations are split as follows [2, 5]. The 0 writes are split as follows [0, 0]. [2025-02-08 08:11:48,037 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:11:48" (1/1) ... [2025-02-08 08:11:48,037 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:11:48" (1/1) ... [2025-02-08 08:11:48,041 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:11:48" (1/1) ... [2025-02-08 08:11:48,041 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:11:48" (1/1) ... [2025-02-08 08:11:48,042 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:11:48" (1/1) ... [2025-02-08 08:11:48,042 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:11:48" (1/1) ... [2025-02-08 08:11:48,043 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 08:11:48,044 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 08:11:48,044 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 08:11:48,044 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 08:11:48,045 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:11:48" (1/1) ... [2025-02-08 08:11:48,048 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 08:11:48,056 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:11:48,067 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) [2025-02-08 08:11:48,069 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 [2025-02-08 08:11:48,085 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2025-02-08 08:11:48,086 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2025-02-08 08:11:48,086 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-02-08 08:11:48,086 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 08:11:48,086 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-08 08:11:48,086 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-08 08:11:48,086 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-02-08 08:11:48,086 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 08:11:48,086 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 08:11:48,087 WARN L227 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-02-08 08:11:48,184 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 08:11:48,186 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 08:11:48,322 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L721: assume { :end_inline_dec } true;havoc #t~ret13#1; [2025-02-08 08:11:48,322 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L721-1: havoc dec_#t~ret6#1, dec_#t~ret7#1, dec_#t~ret8#1, dec_#t~ret9#1, dec_#t~ret10#1, dec_~dec_v~0#1; [2025-02-08 08:11:48,322 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L721-2: #t~ret13#1 := dec_#res#1; [2025-02-08 08:11:48,322 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint thr1FINAL: assume true; [2025-02-08 08:11:48,323 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L722: #res#1.base, #res#1.offset := 0, 0; [2025-02-08 08:11:48,323 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L720: assume { :end_inline_inc } true;havoc #t~ret12#1; [2025-02-08 08:11:48,323 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L720-1: havoc inc_#t~ret1#1, inc_#t~ret2#1, inc_#t~ret3#1, inc_#t~ret4#1, inc_#t~ret5#1, inc_~inc_v~0#1; [2025-02-08 08:11:48,323 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L720-2: #t~ret12#1 := inc_#res#1; [2025-02-08 08:11:48,348 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-08 08:11:48,349 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 08:11:48,418 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 08:11:48,418 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 08:11:48,419 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 08:11:48 BoogieIcfgContainer [2025-02-08 08:11:48,419 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 08:11:48,420 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 08:11:48,420 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 08:11:48,424 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 08:11:48,424 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 08:11:47" (1/3) ... [2025-02-08 08:11:48,424 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b221fe9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 08:11:48, skipping insertion in model container [2025-02-08 08:11:48,424 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:11:48" (2/3) ... [2025-02-08 08:11:48,424 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b221fe9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 08:11:48, skipping insertion in model container [2025-02-08 08:11:48,424 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 08:11:48" (3/3) ... [2025-02-08 08:11:48,425 INFO L128 eAbstractionObserver]: Analyzing ICFG 03_incdec.i [2025-02-08 08:11:48,434 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 08:11:48,435 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 03_incdec.i that has 2 procedures, 44 locations, 1 initial locations, 1 loop locations, and 3 error locations. [2025-02-08 08:11:48,435 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-08 08:11:48,465 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.NullPointerException: Cannot invoke "de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.structure.IcfgLocation.equals(Object)" because the return value of "java.util.Map.get(Object)" is null at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.ProcedureMultiplier.constructLocationCopy(ProcedureMultiplier.java:348) at java.base/java.util.HashMap.computeIfAbsent(HashMap.java:1228) at de.uni_freiburg.informatik.ultimate.util.datastructures.BidirectionalMap.computeIfAbsent(BidirectionalMap.java:189) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.ProcedureMultiplier.getOrConstructLocationCopy(ProcedureMultiplier.java:334) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.ProcedureMultiplier.duplicateProcedureEdges(ProcedureMultiplier.java:221) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.ProcedureMultiplier.(ProcedureMultiplier.java:133) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.ProcedureMultiplier.(ProcedureMultiplier.java:114) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.ProcedureMultiplier.duplicateProcedures(ProcedureMultiplier.java:143) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.IcfgPetrifier.(IcfgPetrifier.java:104) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.petrify(TraceAbstractionStarter.java:492) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:132) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2025-02-08 08:11:48,469 INFO L158 Benchmark]: Toolchain (without parser) took 820.39ms. Allocated memory is still 142.6MB. Free memory was 110.9MB in the beginning and 59.9MB in the end (delta: 50.9MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2025-02-08 08:11:48,469 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 201.3MB. Free memory is still 126.8MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 08:11:48,469 INFO L158 Benchmark]: CACSL2BoogieTranslator took 352.03ms. Allocated memory is still 142.6MB. Free memory was 110.5MB in the beginning and 90.6MB in the end (delta: 19.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-08 08:11:48,469 INFO L158 Benchmark]: Boogie Procedure Inliner took 21.53ms. Allocated memory is still 142.6MB. Free memory was 90.6MB in the beginning and 88.8MB in the end (delta: 1.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-08 08:11:48,470 INFO L158 Benchmark]: Boogie Preprocessor took 19.77ms. Allocated memory is still 142.6MB. Free memory was 88.8MB in the beginning and 87.6MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 08:11:48,470 INFO L158 Benchmark]: IcfgBuilder took 374.85ms. Allocated memory is still 142.6MB. Free memory was 87.6MB in the beginning and 64.9MB in the end (delta: 22.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-08 08:11:48,470 INFO L158 Benchmark]: TraceAbstraction took 47.33ms. Allocated memory is still 142.6MB. Free memory was 64.0MB in the beginning and 59.9MB in the end (delta: 4.1MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 08:11:48,471 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 201.3MB. Free memory is still 126.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 352.03ms. Allocated memory is still 142.6MB. Free memory was 110.5MB in the beginning and 90.6MB in the end (delta: 19.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 21.53ms. Allocated memory is still 142.6MB. Free memory was 90.6MB in the beginning and 88.8MB in the end (delta: 1.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 19.77ms. Allocated memory is still 142.6MB. Free memory was 88.8MB in the beginning and 87.6MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 374.85ms. Allocated memory is still 142.6MB. Free memory was 87.6MB in the beginning and 64.9MB in the end (delta: 22.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 47.33ms. Allocated memory is still 142.6MB. Free memory was 64.0MB in the beginning and 59.9MB in the end (delta: 4.1MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: NullPointerException: Cannot invoke "de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.structure.IcfgLocation.equals(Object)" because the return value of "java.util.Map.get(Object)" is null de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: NullPointerException: Cannot invoke "de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.structure.IcfgLocation.equals(Object)" because the return value of "java.util.Map.get(Object)" is null: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.ProcedureMultiplier.constructLocationCopy(ProcedureMultiplier.java:348) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2025-02-08 08:11:48,486 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-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/pthread-ext/03_incdec.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 c7242322569cf2f27ee72f2a65e0d58ced23407c575f0c8898b19424239a034d --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 08:11:50,814 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 08:11:50,896 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2025-02-08 08:11:50,901 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 08:11:50,901 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 08:11:50,928 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 08:11:50,929 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 08:11:50,929 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 08:11:50,929 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 08:11:50,929 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 08:11:50,929 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 08:11:50,929 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 08:11:50,930 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 08:11:50,930 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 08:11:50,930 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 08:11:50,930 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 08:11:50,930 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 08:11:50,930 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 08:11:50,930 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 08:11:50,930 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 08:11:50,930 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-02-08 08:11:50,930 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-02-08 08:11:50,930 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-02-08 08:11:50,930 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 08:11:50,930 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-08 08:11:50,930 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-02-08 08:11:50,930 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-02-08 08:11:50,932 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 08:11:50,932 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 08:11:50,933 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 08:11:50,933 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 08:11:50,933 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 08:11:50,933 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 08:11:50,933 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 08:11:50,934 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 08:11:50,934 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 08:11:50,934 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 08:11:50,934 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 08:11:50,934 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-02-08 08:11:50,934 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-02-08 08:11:50,934 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 08:11:50,934 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 08:11:50,934 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 08:11:50,934 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 08:11:50,934 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 -> c7242322569cf2f27ee72f2a65e0d58ced23407c575f0c8898b19424239a034d [2025-02-08 08:11:51,152 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 08:11:51,165 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 08:11:51,172 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 08:11:51,173 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 08:11:51,173 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 08:11:51,174 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-ext/03_incdec.i [2025-02-08 08:11:52,469 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/f88109078/33249eaa33aa447389140ad5d6555a93/FLAG30037a43f [2025-02-08 08:11:52,683 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 08:11:52,686 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-ext/03_incdec.i [2025-02-08 08:11:52,698 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/f88109078/33249eaa33aa447389140ad5d6555a93/FLAG30037a43f [2025-02-08 08:11:53,032 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/f88109078/33249eaa33aa447389140ad5d6555a93 [2025-02-08 08:11:53,034 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 08:11:53,035 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 08:11:53,036 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 08:11:53,037 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 08:11:53,039 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 08:11:53,040 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 08:11:53" (1/1) ... [2025-02-08 08:11:53,042 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6702e68d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:11:53, skipping insertion in model container [2025-02-08 08:11:53,042 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 08:11:53" (1/1) ... [2025-02-08 08:11:53,062 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 08:11:53,251 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 08:11:53,267 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 08:11:53,301 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 08:11:53,333 INFO L204 MainTranslator]: Completed translation [2025-02-08 08:11:53,333 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:11:53 WrapperNode [2025-02-08 08:11:53,334 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 08:11:53,335 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 08:11:53,335 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 08:11:53,335 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 08:11:53,339 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:11:53" (1/1) ... [2025-02-08 08:11:53,355 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:11:53" (1/1) ... [2025-02-08 08:11:53,367 INFO L138 Inliner]: procedures = 168, calls = 27, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 98 [2025-02-08 08:11:53,367 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 08:11:53,368 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 08:11:53,368 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 08:11:53,368 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 08:11:53,372 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:11:53" (1/1) ... [2025-02-08 08:11:53,373 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:11:53" (1/1) ... [2025-02-08 08:11:53,375 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:11:53" (1/1) ... [2025-02-08 08:11:53,382 INFO L175 MemorySlicer]: Split 7 memory accesses to 2 slices as follows [2, 5]. 71 percent of accesses are in the largest equivalence class. The 7 initializations are split as follows [2, 5]. The 0 writes are split as follows [0, 0]. [2025-02-08 08:11:53,382 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:11:53" (1/1) ... [2025-02-08 08:11:53,382 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:11:53" (1/1) ... [2025-02-08 08:11:53,390 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:11:53" (1/1) ... [2025-02-08 08:11:53,391 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:11:53" (1/1) ... [2025-02-08 08:11:53,392 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:11:53" (1/1) ... [2025-02-08 08:11:53,393 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:11:53" (1/1) ... [2025-02-08 08:11:53,394 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 08:11:53,395 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 08:11:53,395 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 08:11:53,395 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 08:11:53,396 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:11:53" (1/1) ... [2025-02-08 08:11:53,399 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 08:11:53,409 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:11:53,423 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) [2025-02-08 08:11:53,433 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 [2025-02-08 08:11:53,450 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2025-02-08 08:11:53,450 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2025-02-08 08:11:53,450 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-02-08 08:11:53,450 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 08:11:53,450 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-02-08 08:11:53,450 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2025-02-08 08:11:53,450 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#0 [2025-02-08 08:11:53,450 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#1 [2025-02-08 08:11:53,450 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-02-08 08:11:53,450 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 08:11:53,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 08:11:53,451 WARN L227 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-02-08 08:11:53,551 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 08:11:53,553 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 08:11:53,751 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L721: assume { :end_inline_dec } true;havoc #t~ret13#1; [2025-02-08 08:11:53,752 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L721-1: havoc dec_#t~ret6#1, dec_#t~ret7#1, dec_#t~ret8#1, dec_#t~ret9#1, dec_#t~ret10#1, dec_~dec_v~0#1; [2025-02-08 08:11:53,752 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L721-2: #t~ret13#1 := dec_#res#1; [2025-02-08 08:11:53,752 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint thr1FINAL: assume true; [2025-02-08 08:11:53,752 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L722: #res#1.base, #res#1.offset := 0bv32, 0bv32; [2025-02-08 08:11:53,752 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L720: assume { :end_inline_inc } true;havoc #t~ret12#1; [2025-02-08 08:11:53,752 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L720-1: havoc inc_#t~ret1#1, inc_#t~ret2#1, inc_#t~ret3#1, inc_#t~ret4#1, inc_#t~ret5#1, inc_~inc_v~0#1; [2025-02-08 08:11:53,752 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L720-2: #t~ret12#1 := inc_#res#1; [2025-02-08 08:11:53,804 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-08 08:11:53,804 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 08:11:53,880 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 08:11:53,880 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 08:11:53,881 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 08:11:53 BoogieIcfgContainer [2025-02-08 08:11:53,881 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 08:11:53,883 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 08:11:53,884 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 08:11:53,887 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 08:11:53,887 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 08:11:53" (1/3) ... [2025-02-08 08:11:53,889 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17a44a21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 08:11:53, skipping insertion in model container [2025-02-08 08:11:53,889 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:11:53" (2/3) ... [2025-02-08 08:11:53,889 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17a44a21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 08:11:53, skipping insertion in model container [2025-02-08 08:11:53,889 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 08:11:53" (3/3) ... [2025-02-08 08:11:53,890 INFO L128 eAbstractionObserver]: Analyzing ICFG 03_incdec.i [2025-02-08 08:11:53,899 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 08:11:53,900 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 03_incdec.i that has 2 procedures, 44 locations, 1 initial locations, 1 loop locations, and 3 error locations. [2025-02-08 08:11:53,900 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-08 08:11:53,929 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.NullPointerException: Cannot invoke "de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.structure.IcfgLocation.equals(Object)" because the return value of "java.util.Map.get(Object)" is null at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.ProcedureMultiplier.constructLocationCopy(ProcedureMultiplier.java:348) at java.base/java.util.HashMap.computeIfAbsent(HashMap.java:1228) at de.uni_freiburg.informatik.ultimate.util.datastructures.BidirectionalMap.computeIfAbsent(BidirectionalMap.java:189) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.ProcedureMultiplier.getOrConstructLocationCopy(ProcedureMultiplier.java:334) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.ProcedureMultiplier.duplicateProcedureEdges(ProcedureMultiplier.java:221) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.ProcedureMultiplier.(ProcedureMultiplier.java:133) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.ProcedureMultiplier.(ProcedureMultiplier.java:114) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.ProcedureMultiplier.duplicateProcedures(ProcedureMultiplier.java:143) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.IcfgPetrifier.(IcfgPetrifier.java:104) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.petrify(TraceAbstractionStarter.java:492) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:132) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2025-02-08 08:11:53,934 INFO L158 Benchmark]: Toolchain (without parser) took 898.30ms. Allocated memory is still 83.9MB. Free memory was 58.4MB in the beginning and 36.5MB in the end (delta: 21.9MB). Peak memory consumption was 20.9MB. Max. memory is 16.1GB. [2025-02-08 08:11:53,935 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 83.9MB. Free memory was 62.4MB in the beginning and 62.4MB in the end (delta: 34.9kB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 08:11:53,936 INFO L158 Benchmark]: CACSL2BoogieTranslator took 298.33ms. Allocated memory is still 83.9MB. Free memory was 58.1MB in the beginning and 37.4MB in the end (delta: 20.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-02-08 08:11:53,936 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.66ms. Allocated memory is still 83.9MB. Free memory was 37.4MB in the beginning and 35.8MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 08:11:53,937 INFO L158 Benchmark]: Boogie Preprocessor took 26.38ms. Allocated memory is still 83.9MB. Free memory was 35.5MB in the beginning and 34.0MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 08:11:53,937 INFO L158 Benchmark]: IcfgBuilder took 485.99ms. Allocated memory is still 83.9MB. Free memory was 34.0MB in the beginning and 42.3MB in the end (delta: -8.4MB). Peak memory consumption was 20.9MB. Max. memory is 16.1GB. [2025-02-08 08:11:53,937 INFO L158 Benchmark]: TraceAbstraction took 49.20ms. Allocated memory is still 83.9MB. Free memory was 41.4MB in the beginning and 36.5MB in the end (delta: 4.9MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 08:11:53,938 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 83.9MB. Free memory was 62.4MB in the beginning and 62.4MB in the end (delta: 34.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 298.33ms. Allocated memory is still 83.9MB. Free memory was 58.1MB in the beginning and 37.4MB in the end (delta: 20.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.66ms. Allocated memory is still 83.9MB. Free memory was 37.4MB in the beginning and 35.8MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 26.38ms. Allocated memory is still 83.9MB. Free memory was 35.5MB in the beginning and 34.0MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 485.99ms. Allocated memory is still 83.9MB. Free memory was 34.0MB in the beginning and 42.3MB in the end (delta: -8.4MB). Peak memory consumption was 20.9MB. Max. memory is 16.1GB. * TraceAbstraction took 49.20ms. Allocated memory is still 83.9MB. Free memory was 41.4MB in the beginning and 36.5MB in the end (delta: 4.9MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: NullPointerException: Cannot invoke "de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.structure.IcfgLocation.equals(Object)" because the return value of "java.util.Map.get(Object)" is null de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: NullPointerException: Cannot invoke "de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.structure.IcfgLocation.equals(Object)" because the return value of "java.util.Map.get(Object)" is null: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.ProcedureMultiplier.constructLocationCopy(ProcedureMultiplier.java:348) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2025-02-08 08:11:53,957 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: NullPointerException: Cannot invoke "de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.structure.IcfgLocation.equals(Object)" because the return value of "java.util.Map.get(Object)" is null