./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/pthread-ext/04_incdec_cas-race.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races 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/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-ext/04_incdec_cas-race.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-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 ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a025fe4ca65874bde9a09e6a2d9fa9eceda581ed1bc5b23e0ff5285795ed115b --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 05:09:55,891 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 05:09:55,948 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-02-08 05:09:55,954 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 05:09:55,956 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 05:09:55,976 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 05:09:55,978 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 05:09:55,978 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 05:09:55,978 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 05:09:55,979 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 05:09:55,979 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 05:09:55,979 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 05:09:55,979 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 05:09:55,979 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 05:09:55,980 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-08 05:09:55,980 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 05:09:55,980 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 05:09:55,980 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 05:09:55,980 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 05:09:55,980 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-08 05:09:55,980 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 05:09:55,980 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-08 05:09:55,980 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-02-08 05:09:55,980 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 05:09:55,980 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 05:09:55,980 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 05:09:55,981 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 05:09:55,981 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 05:09:55,981 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 05:09:55,981 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 05:09:55,981 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 05:09:55,981 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 05:09:55,981 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 05:09:55,982 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 05:09:55,982 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-08 05:09:55,982 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-08 05:09:55,982 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 05:09:55,982 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 05:09:55,982 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 05:09:55,982 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 05:09:55,982 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 05:09:55,982 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 05:09:55,982 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 ! data-race) ) 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 -> a025fe4ca65874bde9a09e6a2d9fa9eceda581ed1bc5b23e0ff5285795ed115b [2025-02-08 05:09:56,186 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 05:09:56,192 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 05:09:56,194 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 05:09:56,195 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 05:09:56,195 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 05:09:56,196 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-ext/04_incdec_cas-race.i [2025-02-08 05:09:57,332 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/52cbd57e7/108925548271404db00fa2f77ed7ed2e/FLAG50860810c [2025-02-08 05:09:57,600 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 05:09:57,602 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-ext/04_incdec_cas-race.i [2025-02-08 05:09:57,615 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/52cbd57e7/108925548271404db00fa2f77ed7ed2e/FLAG50860810c [2025-02-08 05:09:57,630 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/52cbd57e7/108925548271404db00fa2f77ed7ed2e [2025-02-08 05:09:57,632 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 05:09:57,633 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 05:09:57,635 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 05:09:57,635 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 05:09:57,638 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 05:09:57,639 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 05:09:57" (1/1) ... [2025-02-08 05:09:57,641 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37a1c018 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:09:57, skipping insertion in model container [2025-02-08 05:09:57,641 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 05:09:57" (1/1) ... [2025-02-08 05:09:57,677 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 05:09:57,860 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 05:09:57,866 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 05:09:57,907 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 05:09:57,937 INFO L204 MainTranslator]: Completed translation [2025-02-08 05:09:57,937 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:09:57 WrapperNode [2025-02-08 05:09:57,938 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 05:09:57,939 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 05:09:57,939 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 05:09:57,939 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 05:09:57,943 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:09:57" (1/1) ... [2025-02-08 05:09:57,954 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:09:57" (1/1) ... [2025-02-08 05:09:57,972 INFO L138 Inliner]: procedures = 172, calls = 42, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 261 [2025-02-08 05:09:57,972 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 05:09:57,973 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 05:09:57,973 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 05:09:57,973 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 05:09:57,977 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:09:57" (1/1) ... [2025-02-08 05:09:57,980 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:09:57" (1/1) ... [2025-02-08 05:09:57,985 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:09:57" (1/1) ... [2025-02-08 05:09:57,986 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:09:57" (1/1) ... [2025-02-08 05:09:57,997 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:09:57" (1/1) ... [2025-02-08 05:09:57,999 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:09:57" (1/1) ... [2025-02-08 05:09:58,003 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:09:57" (1/1) ... [2025-02-08 05:09:58,004 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:09:57" (1/1) ... [2025-02-08 05:09:58,007 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 05:09:58,011 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 05:09:58,012 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 05:09:58,012 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 05:09:58,012 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:09:57" (1/1) ... [2025-02-08 05:09:58,019 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 05:09:58,030 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 05:09:58,044 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 05:09:58,048 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 05:09:58,064 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-02-08 05:09:58,064 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2025-02-08 05:09:58,064 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2025-02-08 05:09:58,065 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-02-08 05:09:58,065 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 05:09:58,065 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-08 05:09:58,065 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-08 05:09:58,065 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-02-08 05:09:58,065 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 05:09:58,065 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 05:09:58,066 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 05:09:58,171 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 05:09:58,172 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 05:09:58,554 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint thr1FINAL: assume true; [2025-02-08 05:09:58,554 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L742: assume { :end_inline_inc } true;havoc #t~ret19#1; [2025-02-08 05:09:58,554 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L742-1: havoc inc_#t~mem11#1, inc_#t~mem12#1, inc_~inc__v~0#1, inc_~inc__vn~0#1, inc_~#inc__casret~0#1.base, inc_~#inc__casret~0#1.offset; [2025-02-08 05:09:58,554 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L709: havoc inc_~#inc__casret~0#1.base, inc_~#inc__casret~0#1.offset; [2025-02-08 05:09:58,554 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L742-2: #t~ret19#1 := inc_#res#1; [2025-02-08 05:09:58,554 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L709-1: SUMMARY for call ULTIMATE.dealloc(inc_~#inc__casret~0#1.base, inc_~#inc__casret~0#1.offset); srcloc: null [2025-02-08 05:09:58,554 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L743: assume { :end_inline_dec } true;havoc #t~ret20#1; [2025-02-08 05:09:58,554 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L743-1: havoc dec_#t~mem16#1, dec_#t~mem17#1, dec_~dec__v~0#1, dec_~dec__vn~0#1, dec_~#dec__casret~0#1.base, dec_~#dec__casret~0#1.offset; [2025-02-08 05:09:58,554 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L743-2: #t~ret20#1 := dec_#res#1; [2025-02-08 05:09:58,554 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L727: havoc dec_~#dec__casret~0#1.base, dec_~#dec__casret~0#1.offset; [2025-02-08 05:09:58,554 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L727-1: SUMMARY for call ULTIMATE.dealloc(dec_~#dec__casret~0#1.base, dec_~#dec__casret~0#1.offset); srcloc: null [2025-02-08 05:09:58,555 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L744: #res#1.base, #res#1.offset := 0, 0; [2025-02-08 05:09:58,577 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-08 05:09:58,577 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 05:09:58,835 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 05:09:58,836 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 05:09:58,836 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 05:09:58 BoogieIcfgContainer [2025-02-08 05:09:58,836 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 05:09:58,838 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 05:09:58,838 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 05:09:58,842 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 05:09:58,843 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 05:09:57" (1/3) ... [2025-02-08 05:09:58,843 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d51eaa1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 05:09:58, skipping insertion in model container [2025-02-08 05:09:58,843 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:09:57" (2/3) ... [2025-02-08 05:09:58,844 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d51eaa1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 05:09:58, skipping insertion in model container [2025-02-08 05:09:58,844 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 05:09:58" (3/3) ... [2025-02-08 05:09:58,845 INFO L128 eAbstractionObserver]: Analyzing ICFG 04_incdec_cas-race.i [2025-02-08 05:09:58,855 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 05:09:58,857 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 04_incdec_cas-race.i that has 2 procedures, 121 locations, 1 initial locations, 3 loop locations, and 18 error locations. [2025-02-08 05:09:58,858 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-08 05:09:58,900 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 05:09:58,906 INFO L158 Benchmark]: Toolchain (without parser) took 1272.20ms. Allocated memory is still 142.6MB. Free memory was 113.9MB in the beginning and 59.1MB in the end (delta: 54.8MB). Peak memory consumption was 57.8MB. Max. memory is 16.1GB. [2025-02-08 05:09:58,906 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 201.3MB. Free memory is still 125.5MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 05:09:58,906 INFO L158 Benchmark]: CACSL2BoogieTranslator took 303.58ms. Allocated memory is still 142.6MB. Free memory was 113.9MB in the beginning and 93.2MB in the end (delta: 20.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-02-08 05:09:58,906 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.63ms. Allocated memory is still 142.6MB. Free memory was 93.2MB in the beginning and 89.8MB in the end (delta: 3.3MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 05:09:58,910 INFO L158 Benchmark]: Boogie Preprocessor took 35.44ms. Allocated memory is still 142.6MB. Free memory was 89.8MB in the beginning and 87.6MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 05:09:58,910 INFO L158 Benchmark]: IcfgBuilder took 824.59ms. Allocated memory is still 142.6MB. Free memory was 87.6MB in the beginning and 70.5MB in the end (delta: 17.1MB). Peak memory consumption was 57.8MB. Max. memory is 16.1GB. [2025-02-08 05:09:58,911 INFO L158 Benchmark]: TraceAbstraction took 66.75ms. Allocated memory is still 142.6MB. Free memory was 69.7MB in the beginning and 59.1MB in the end (delta: 10.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-08 05:09:58,912 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 201.3MB. Free memory is still 125.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 303.58ms. Allocated memory is still 142.6MB. Free memory was 113.9MB in the beginning and 93.2MB in the end (delta: 20.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.63ms. Allocated memory is still 142.6MB. Free memory was 93.2MB in the beginning and 89.8MB in the end (delta: 3.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 35.44ms. Allocated memory is still 142.6MB. Free memory was 89.8MB in the beginning and 87.6MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 824.59ms. Allocated memory is still 142.6MB. Free memory was 87.6MB in the beginning and 70.5MB in the end (delta: 17.1MB). Peak memory consumption was 57.8MB. Max. memory is 16.1GB. * TraceAbstraction took 66.75ms. Allocated memory is still 142.6MB. Free memory was 69.7MB in the beginning and 59.1MB in the end (delta: 10.6MB). Peak memory consumption was 8.4MB. 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 05:09:58,927 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/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-ext/04_incdec_cas-race.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-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 ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a025fe4ca65874bde9a09e6a2d9fa9eceda581ed1bc5b23e0ff5285795ed115b --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 05:10:00,728 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 05:10:00,791 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Bitvector.epf [2025-02-08 05:10:00,796 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 05:10:00,799 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 05:10:00,828 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 05:10:00,829 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 05:10:00,829 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 05:10:00,829 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 05:10:00,829 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 05:10:00,839 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 05:10:00,843 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 05:10:00,844 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 05:10:00,844 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 05:10:00,844 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-08 05:10:00,844 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 05:10:00,844 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 05:10:00,844 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 05:10:00,844 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-08 05:10:00,844 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 05:10:00,844 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-08 05:10:00,844 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-02-08 05:10:00,844 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-02-08 05:10:00,844 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-02-08 05:10:00,844 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 05:10:00,844 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 05:10:00,844 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 05:10:00,844 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 05:10:00,844 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 05:10:00,845 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 05:10:00,845 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 05:10:00,845 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 05:10:00,845 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 05:10:00,845 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 05:10:00,845 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 05:10:00,845 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-08 05:10:00,845 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-08 05:10:00,845 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-02-08 05:10:00,845 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-02-08 05:10:00,845 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 05:10:00,845 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 05:10:00,845 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 05:10:00,845 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 05:10:00,845 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 ! data-race) ) 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 -> a025fe4ca65874bde9a09e6a2d9fa9eceda581ed1bc5b23e0ff5285795ed115b [2025-02-08 05:10:01,099 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 05:10:01,108 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 05:10:01,110 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 05:10:01,111 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 05:10:01,111 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 05:10:01,112 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-ext/04_incdec_cas-race.i [2025-02-08 05:10:02,271 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/dd9e26577/c0da7013819a4e39ba8570dd2f174dc8/FLAG5c294a6a3 [2025-02-08 05:10:02,542 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 05:10:02,544 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-ext/04_incdec_cas-race.i [2025-02-08 05:10:02,559 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/dd9e26577/c0da7013819a4e39ba8570dd2f174dc8/FLAG5c294a6a3 [2025-02-08 05:10:02,845 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/dd9e26577/c0da7013819a4e39ba8570dd2f174dc8 [2025-02-08 05:10:02,848 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 05:10:02,849 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 05:10:02,851 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 05:10:02,851 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 05:10:02,854 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 05:10:02,854 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 05:10:02" (1/1) ... [2025-02-08 05:10:02,855 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@cbd1001 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:10:02, skipping insertion in model container [2025-02-08 05:10:02,855 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 05:10:02" (1/1) ... [2025-02-08 05:10:02,876 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 05:10:03,062 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 05:10:03,069 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 05:10:03,131 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 05:10:03,160 INFO L204 MainTranslator]: Completed translation [2025-02-08 05:10:03,160 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:10:03 WrapperNode [2025-02-08 05:10:03,161 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 05:10:03,161 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 05:10:03,162 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 05:10:03,162 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 05:10:03,166 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:10:03" (1/1) ... [2025-02-08 05:10:03,186 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:10:03" (1/1) ... [2025-02-08 05:10:03,217 INFO L138 Inliner]: procedures = 176, calls = 42, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 261 [2025-02-08 05:10:03,217 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 05:10:03,218 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 05:10:03,218 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 05:10:03,218 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 05:10:03,223 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:10:03" (1/1) ... [2025-02-08 05:10:03,223 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:10:03" (1/1) ... [2025-02-08 05:10:03,230 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:10:03" (1/1) ... [2025-02-08 05:10:03,231 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:10:03" (1/1) ... [2025-02-08 05:10:03,248 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:10:03" (1/1) ... [2025-02-08 05:10:03,250 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:10:03" (1/1) ... [2025-02-08 05:10:03,253 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:10:03" (1/1) ... [2025-02-08 05:10:03,256 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:10:03" (1/1) ... [2025-02-08 05:10:03,258 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 05:10:03,259 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 05:10:03,259 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 05:10:03,259 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 05:10:03,260 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:10:03" (1/1) ... [2025-02-08 05:10:03,264 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 05:10:03,272 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 05:10:03,281 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 05:10:03,283 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 05:10:03,300 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2025-02-08 05:10:03,301 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2025-02-08 05:10:03,301 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2025-02-08 05:10:03,301 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 05:10:03,301 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-08 05:10:03,301 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-08 05:10:03,301 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2025-02-08 05:10:03,301 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2025-02-08 05:10:03,301 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2025-02-08 05:10:03,301 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 05:10:03,301 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 05:10:03,302 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 05:10:03,395 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 05:10:03,396 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 05:10:03,842 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint thr1FINAL: assume true; [2025-02-08 05:10:03,843 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L742: assume { :end_inline_inc } true;havoc #t~ret19#1; [2025-02-08 05:10:03,843 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L742-1: havoc inc_#t~mem11#1, inc_#t~mem12#1, inc_~inc__v~0#1, inc_~inc__vn~0#1, inc_~#inc__casret~0#1.base, inc_~#inc__casret~0#1.offset; [2025-02-08 05:10:03,843 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L709: havoc inc_~#inc__casret~0#1.base, inc_~#inc__casret~0#1.offset; [2025-02-08 05:10:03,843 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L742-2: #t~ret19#1 := inc_#res#1; [2025-02-08 05:10:03,843 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L709-1: SUMMARY for call ULTIMATE.dealloc(inc_~#inc__casret~0#1.base, inc_~#inc__casret~0#1.offset); srcloc: null [2025-02-08 05:10:03,843 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L743: assume { :end_inline_dec } true;havoc #t~ret20#1; [2025-02-08 05:10:03,843 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L743-1: havoc dec_#t~mem16#1, dec_#t~mem17#1, dec_~dec__v~0#1, dec_~dec__vn~0#1, dec_~#dec__casret~0#1.base, dec_~#dec__casret~0#1.offset; [2025-02-08 05:10:03,843 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L743-2: #t~ret20#1 := dec_#res#1; [2025-02-08 05:10:03,843 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L727: havoc dec_~#dec__casret~0#1.base, dec_~#dec__casret~0#1.offset; [2025-02-08 05:10:03,843 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L727-1: SUMMARY for call ULTIMATE.dealloc(dec_~#dec__casret~0#1.base, dec_~#dec__casret~0#1.offset); srcloc: null [2025-02-08 05:10:03,843 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L744: #res#1.base, #res#1.offset := 0bv32, 0bv32; [2025-02-08 05:10:03,865 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-08 05:10:03,865 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 05:10:04,159 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 05:10:04,159 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 05:10:04,160 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 05:10:04 BoogieIcfgContainer [2025-02-08 05:10:04,160 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 05:10:04,162 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 05:10:04,162 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 05:10:04,166 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 05:10:04,166 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 05:10:02" (1/3) ... [2025-02-08 05:10:04,166 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@219c78f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 05:10:04, skipping insertion in model container [2025-02-08 05:10:04,166 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:10:03" (2/3) ... [2025-02-08 05:10:04,167 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@219c78f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 05:10:04, skipping insertion in model container [2025-02-08 05:10:04,167 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 05:10:04" (3/3) ... [2025-02-08 05:10:04,168 INFO L128 eAbstractionObserver]: Analyzing ICFG 04_incdec_cas-race.i [2025-02-08 05:10:04,178 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 05:10:04,179 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 04_incdec_cas-race.i that has 2 procedures, 121 locations, 1 initial locations, 3 loop locations, and 18 error locations. [2025-02-08 05:10:04,179 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-08 05:10:04,229 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 05:10:04,235 INFO L158 Benchmark]: Toolchain (without parser) took 1384.40ms. Allocated memory was 117.4MB in the beginning and 234.9MB in the end (delta: 117.4MB). Free memory was 90.3MB in the beginning and 129.4MB in the end (delta: -39.1MB). Peak memory consumption was 75.2MB. Max. memory is 16.1GB. [2025-02-08 05:10:04,235 INFO L158 Benchmark]: CDTParser took 1.94ms. Allocated memory is still 117.4MB. Free memory is still 81.9MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 05:10:04,236 INFO L158 Benchmark]: CACSL2BoogieTranslator took 310.51ms. Allocated memory is still 117.4MB. Free memory was 90.1MB in the beginning and 68.4MB in the end (delta: 21.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-02-08 05:10:04,236 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.48ms. Allocated memory is still 117.4MB. Free memory was 68.4MB in the beginning and 65.2MB in the end (delta: 3.2MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 05:10:04,236 INFO L158 Benchmark]: Boogie Preprocessor took 40.04ms. Allocated memory is still 117.4MB. Free memory was 65.2MB in the beginning and 62.2MB in the end (delta: 3.1MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 05:10:04,236 INFO L158 Benchmark]: IcfgBuilder took 901.34ms. Allocated memory was 117.4MB in the beginning and 234.9MB in the end (delta: 117.4MB). Free memory was 62.2MB in the beginning and 146.2MB in the end (delta: -84.0MB). Peak memory consumption was 36.8MB. Max. memory is 16.1GB. [2025-02-08 05:10:04,237 INFO L158 Benchmark]: TraceAbstraction took 71.13ms. Allocated memory is still 234.9MB. Free memory was 145.5MB in the beginning and 129.4MB in the end (delta: 16.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-08 05:10:04,238 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.94ms. Allocated memory is still 117.4MB. Free memory is still 81.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 310.51ms. Allocated memory is still 117.4MB. Free memory was 90.1MB in the beginning and 68.4MB in the end (delta: 21.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 56.48ms. Allocated memory is still 117.4MB. Free memory was 68.4MB in the beginning and 65.2MB in the end (delta: 3.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 40.04ms. Allocated memory is still 117.4MB. Free memory was 65.2MB in the beginning and 62.2MB in the end (delta: 3.1MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 901.34ms. Allocated memory was 117.4MB in the beginning and 234.9MB in the end (delta: 117.4MB). Free memory was 62.2MB in the beginning and 146.2MB in the end (delta: -84.0MB). Peak memory consumption was 36.8MB. Max. memory is 16.1GB. * TraceAbstraction took 71.13ms. Allocated memory is still 234.9MB. Free memory was 145.5MB in the beginning and 129.4MB in the end (delta: 16.1MB). Peak memory consumption was 16.8MB. 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 05:10:04,254 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