./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/pthread-ext/04_incdec_cas.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.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 a9295efc0d8bacfc5fb202511f0d3721ae5554ffb4def47cf5dbf45088356869 --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 05:09:59,255 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 05:09:59,315 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-02-08 05:09:59,318 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 05:09:59,318 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 05:09:59,340 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 05:09:59,341 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 05:09:59,341 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 05:09:59,341 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 05:09:59,344 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 05:09:59,345 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 05:09:59,345 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 05:09:59,345 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 05:09:59,345 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 05:09:59,345 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-08 05:09:59,345 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 05:09:59,345 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 05:09:59,345 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 05:09:59,345 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 05:09:59,345 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-08 05:09:59,345 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 05:09:59,345 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-08 05:09:59,345 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-02-08 05:09:59,346 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 05:09:59,346 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 05:09:59,346 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 05:09:59,346 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 05:09:59,346 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 05:09:59,346 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 05:09:59,346 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 05:09:59,346 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 05:09:59,346 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 05:09:59,346 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 05:09:59,346 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 05:09:59,346 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-08 05:09:59,346 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-08 05:09:59,346 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 05:09:59,346 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 05:09:59,346 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 05:09:59,346 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 05:09:59,346 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 05:09:59,346 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 05:09:59,346 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 -> a9295efc0d8bacfc5fb202511f0d3721ae5554ffb4def47cf5dbf45088356869 [2025-02-08 05:09:59,590 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 05:09:59,598 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 05:09:59,600 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 05:09:59,601 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 05:09:59,601 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 05:09:59,603 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-ext/04_incdec_cas.i [2025-02-08 05:10:00,745 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/4691ec032/9b6903ff198f443fa8bb47e116e78692/FLAGadda62948 [2025-02-08 05:10:01,029 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 05:10:01,029 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-ext/04_incdec_cas.i [2025-02-08 05:10:01,043 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/4691ec032/9b6903ff198f443fa8bb47e116e78692/FLAGadda62948 [2025-02-08 05:10:01,055 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/4691ec032/9b6903ff198f443fa8bb47e116e78692 [2025-02-08 05:10:01,057 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 05:10:01,058 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 05:10:01,060 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 05:10:01,060 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 05:10:01,063 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 05:10:01,064 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 05:10:01" (1/1) ... [2025-02-08 05:10:01,064 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14894776 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:10:01, skipping insertion in model container [2025-02-08 05:10:01,064 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 05:10:01" (1/1) ... [2025-02-08 05:10:01,096 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 05:10:01,342 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 05:10:01,347 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 05:10:01,392 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 05:10:01,423 INFO L204 MainTranslator]: Completed translation [2025-02-08 05:10:01,424 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:10:01 WrapperNode [2025-02-08 05:10:01,424 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 05:10:01,425 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 05:10:01,425 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 05:10:01,425 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 05:10:01,431 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:10:01" (1/1) ... [2025-02-08 05:10:01,445 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:10:01" (1/1) ... [2025-02-08 05:10:01,474 INFO L138 Inliner]: procedures = 174, calls = 46, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 265 [2025-02-08 05:10:01,474 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 05:10:01,475 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 05:10:01,475 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 05:10:01,475 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 05:10:01,481 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:10:01" (1/1) ... [2025-02-08 05:10:01,481 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:10:01" (1/1) ... [2025-02-08 05:10:01,489 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:10:01" (1/1) ... [2025-02-08 05:10:01,489 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:10:01" (1/1) ... [2025-02-08 05:10:01,505 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:10:01" (1/1) ... [2025-02-08 05:10:01,506 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:10:01" (1/1) ... [2025-02-08 05:10:01,512 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:10:01" (1/1) ... [2025-02-08 05:10:01,513 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:10:01" (1/1) ... [2025-02-08 05:10:01,515 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 05:10:01,520 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 05:10:01,520 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 05:10:01,520 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 05:10:01,521 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:10:01" (1/1) ... [2025-02-08 05:10:01,530 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 05:10:01,545 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 05:10:01,566 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 05:10:01,570 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 05:10:01,588 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-02-08 05:10:01,588 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2025-02-08 05:10:01,588 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2025-02-08 05:10:01,588 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-02-08 05:10:01,588 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-02-08 05:10:01,589 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 05:10:01,589 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-08 05:10:01,589 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-08 05:10:01,589 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-02-08 05:10:01,589 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-02-08 05:10:01,589 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 05:10:01,589 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 05:10:01,590 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 05:10:01,679 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 05:10:01,680 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 05:10:02,075 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L731: havoc dec_~#dec__casret~0#1.base, dec_~#dec__casret~0#1.offset; [2025-02-08 05:10:02,076 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L731-1: SUMMARY for call ULTIMATE.dealloc(dec_~#dec__casret~0#1.base, dec_~#dec__casret~0#1.offset); srcloc: null [2025-02-08 05:10:02,076 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L748: assume { :end_inline_inc } true;havoc #t~ret19#1; [2025-02-08 05:10:02,076 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L748-1: 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 05:10:02,076 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L748-2: #t~ret19#1 := inc_#res#1; [2025-02-08 05:10:02,076 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L749: assume { :end_inline_dec } true;havoc #t~ret20#1; [2025-02-08 05:10:02,076 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L749-1: 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 05:10:02,076 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L749-2: #t~ret20#1 := dec_#res#1; [2025-02-08 05:10:02,076 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L750: #res#1.base, #res#1.offset := 0, 0; [2025-02-08 05:10:02,076 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint thr1FINAL: assume true; [2025-02-08 05:10:02,077 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L711: havoc inc_~#inc__casret~0#1.base, inc_~#inc__casret~0#1.offset; [2025-02-08 05:10:02,077 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L711-1: SUMMARY for call ULTIMATE.dealloc(inc_~#inc__casret~0#1.base, inc_~#inc__casret~0#1.offset); srcloc: null [2025-02-08 05:10:02,095 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-08 05:10:02,096 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 05:10:02,375 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 05:10:02,376 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 05:10:02,376 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 05:10:02 BoogieIcfgContainer [2025-02-08 05:10:02,376 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 05:10:02,378 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 05:10:02,378 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 05:10:02,381 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 05:10:02,381 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 05:10:01" (1/3) ... [2025-02-08 05:10:02,382 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6aff0b99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 05:10:02, skipping insertion in model container [2025-02-08 05:10:02,382 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:10:01" (2/3) ... [2025-02-08 05:10:02,382 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6aff0b99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 05:10:02, skipping insertion in model container [2025-02-08 05:10:02,382 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 05:10:02" (3/3) ... [2025-02-08 05:10:02,383 INFO L128 eAbstractionObserver]: Analyzing ICFG 04_incdec_cas.i [2025-02-08 05:10:02,394 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 05:10:02,395 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 04_incdec_cas.i that has 2 procedures, 107 locations, 1 initial locations, 3 loop locations, and 18 error locations. [2025-02-08 05:10:02,395 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-08 05:10:02,440 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 05:10:02,445 INFO L158 Benchmark]: Toolchain (without parser) took 1386.71ms. Allocated memory is still 142.6MB. Free memory was 113.6MB in the beginning and 55.5MB in the end (delta: 58.1MB). Peak memory consumption was 57.5MB. Max. memory is 16.1GB. [2025-02-08 05:10:02,446 INFO L158 Benchmark]: CDTParser took 0.50ms. Allocated memory is still 201.3MB. Free memory is still 124.3MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 05:10:02,446 INFO L158 Benchmark]: CACSL2BoogieTranslator took 364.54ms. Allocated memory is still 142.6MB. Free memory was 112.3MB in the beginning and 92.0MB in the end (delta: 20.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-02-08 05:10:02,446 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.69ms. Allocated memory is still 142.6MB. Free memory was 92.0MB in the beginning and 89.5MB in the end (delta: 2.5MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 05:10:02,446 INFO L158 Benchmark]: Boogie Preprocessor took 40.42ms. Allocated memory is still 142.6MB. Free memory was 89.5MB in the beginning and 85.8MB in the end (delta: 3.7MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 05:10:02,447 INFO L158 Benchmark]: IcfgBuilder took 856.45ms. Allocated memory is still 142.6MB. Free memory was 85.8MB in the beginning and 67.1MB in the end (delta: 18.7MB). Peak memory consumption was 57.5MB. Max. memory is 16.1GB. [2025-02-08 05:10:02,447 INFO L158 Benchmark]: TraceAbstraction took 66.57ms. Allocated memory is still 142.6MB. Free memory was 66.3MB in the beginning and 55.5MB in the end (delta: 10.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-08 05:10:02,448 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.50ms. Allocated memory is still 201.3MB. Free memory is still 124.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 364.54ms. Allocated memory is still 142.6MB. Free memory was 112.3MB in the beginning and 92.0MB in the end (delta: 20.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.69ms. Allocated memory is still 142.6MB. Free memory was 92.0MB in the beginning and 89.5MB in the end (delta: 2.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 40.42ms. Allocated memory is still 142.6MB. Free memory was 89.5MB in the beginning and 85.8MB in the end (delta: 3.7MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 856.45ms. Allocated memory is still 142.6MB. Free memory was 85.8MB in the beginning and 67.1MB in the end (delta: 18.7MB). Peak memory consumption was 57.5MB. Max. memory is 16.1GB. * TraceAbstraction took 66.57ms. Allocated memory is still 142.6MB. Free memory was 66.3MB in the beginning and 55.5MB in the end (delta: 10.8MB). 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 05:10:02,463 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.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 a9295efc0d8bacfc5fb202511f0d3721ae5554ffb4def47cf5dbf45088356869 --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 05:10:04,527 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 05:10:04,628 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Bitvector.epf [2025-02-08 05:10:04,632 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 05:10:04,634 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 05:10:04,654 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 05:10:04,656 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 05:10:04,656 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 05:10:04,656 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 05:10:04,656 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 05:10:04,657 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 05:10:04,657 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 05:10:04,657 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 05:10:04,657 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 05:10:04,657 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-08 05:10:04,658 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 05:10:04,658 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 05:10:04,658 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 05:10:04,658 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-08 05:10:04,658 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 05:10:04,658 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-08 05:10:04,658 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-02-08 05:10:04,658 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-02-08 05:10:04,658 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-02-08 05:10:04,659 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 05:10:04,659 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 05:10:04,659 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 05:10:04,659 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 05:10:04,659 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 05:10:04,659 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 05:10:04,659 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 05:10:04,660 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 05:10:04,660 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 05:10:04,660 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 05:10:04,660 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 05:10:04,660 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-08 05:10:04,660 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-08 05:10:04,660 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-02-08 05:10:04,660 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-02-08 05:10:04,660 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 05:10:04,660 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 05:10:04,660 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 05:10:04,660 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 05:10:04,660 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 -> a9295efc0d8bacfc5fb202511f0d3721ae5554ffb4def47cf5dbf45088356869 [2025-02-08 05:10:04,888 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 05:10:04,894 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 05:10:04,895 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 05:10:04,896 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 05:10:04,896 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 05:10:04,897 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-ext/04_incdec_cas.i [2025-02-08 05:10:06,131 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/a8cebbb46/c70bc6b92bea49cea440be2def09daf3/FLAGadb6ef67d [2025-02-08 05:10:06,394 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 05:10:06,395 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-ext/04_incdec_cas.i [2025-02-08 05:10:06,411 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/a8cebbb46/c70bc6b92bea49cea440be2def09daf3/FLAGadb6ef67d [2025-02-08 05:10:06,424 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/a8cebbb46/c70bc6b92bea49cea440be2def09daf3 [2025-02-08 05:10:06,426 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 05:10:06,428 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 05:10:06,429 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 05:10:06,429 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 05:10:06,432 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 05:10:06,433 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 05:10:06" (1/1) ... [2025-02-08 05:10:06,433 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b14746f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:10:06, skipping insertion in model container [2025-02-08 05:10:06,434 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 05:10:06" (1/1) ... [2025-02-08 05:10:06,465 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 05:10:06,691 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 05:10:06,702 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 05:10:06,748 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 05:10:06,778 INFO L204 MainTranslator]: Completed translation [2025-02-08 05:10:06,778 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:10:06 WrapperNode [2025-02-08 05:10:06,778 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 05:10:06,779 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 05:10:06,780 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 05:10:06,780 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 05:10:06,784 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:10:06" (1/1) ... [2025-02-08 05:10:06,796 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:10:06" (1/1) ... [2025-02-08 05:10:06,828 INFO L138 Inliner]: procedures = 178, calls = 46, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 265 [2025-02-08 05:10:06,828 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 05:10:06,828 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 05:10:06,829 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 05:10:06,829 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 05:10:06,837 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:10:06" (1/1) ... [2025-02-08 05:10:06,837 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:10:06" (1/1) ... [2025-02-08 05:10:06,841 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:10:06" (1/1) ... [2025-02-08 05:10:06,841 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:10:06" (1/1) ... [2025-02-08 05:10:06,860 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:10:06" (1/1) ... [2025-02-08 05:10:06,862 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:10:06" (1/1) ... [2025-02-08 05:10:06,863 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:10:06" (1/1) ... [2025-02-08 05:10:06,864 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:10:06" (1/1) ... [2025-02-08 05:10:06,869 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 05:10:06,870 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 05:10:06,870 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 05:10:06,870 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 05:10:06,871 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:10:06" (1/1) ... [2025-02-08 05:10:06,874 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 05:10:06,883 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 05:10:06,893 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 05:10:06,895 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 05:10:06,913 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2025-02-08 05:10:06,913 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2025-02-08 05:10:06,913 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2025-02-08 05:10:06,913 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-02-08 05:10:06,913 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 05:10:06,913 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-08 05:10:06,913 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-08 05:10:06,913 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2025-02-08 05:10:06,913 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2025-02-08 05:10:06,913 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2025-02-08 05:10:06,913 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-02-08 05:10:06,914 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 05:10:06,914 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 05:10:06,914 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 05:10:07,033 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 05:10:07,034 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 05:10:07,506 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L731: havoc dec_~#dec__casret~0#1.base, dec_~#dec__casret~0#1.offset; [2025-02-08 05:10:07,506 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L731-1: SUMMARY for call ULTIMATE.dealloc(dec_~#dec__casret~0#1.base, dec_~#dec__casret~0#1.offset); srcloc: null [2025-02-08 05:10:07,506 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L748: assume { :end_inline_inc } true;havoc #t~ret19#1; [2025-02-08 05:10:07,506 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L748-1: 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 05:10:07,507 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L748-2: #t~ret19#1 := inc_#res#1; [2025-02-08 05:10:07,507 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L749: assume { :end_inline_dec } true;havoc #t~ret20#1; [2025-02-08 05:10:07,507 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L749-1: 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 05:10:07,507 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L749-2: #t~ret20#1 := dec_#res#1; [2025-02-08 05:10:07,507 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L750: #res#1.base, #res#1.offset := 0bv32, 0bv32; [2025-02-08 05:10:07,507 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint thr1FINAL: assume true; [2025-02-08 05:10:07,507 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L711: havoc inc_~#inc__casret~0#1.base, inc_~#inc__casret~0#1.offset; [2025-02-08 05:10:07,507 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L711-1: SUMMARY for call ULTIMATE.dealloc(inc_~#inc__casret~0#1.base, inc_~#inc__casret~0#1.offset); srcloc: null [2025-02-08 05:10:07,533 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-08 05:10:07,534 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 05:10:07,786 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 05:10:07,786 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 05:10:07,787 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 05:10:07 BoogieIcfgContainer [2025-02-08 05:10:07,787 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 05:10:07,788 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 05:10:07,788 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 05:10:07,791 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 05:10:07,792 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 05:10:06" (1/3) ... [2025-02-08 05:10:07,792 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@454bb6d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 05:10:07, skipping insertion in model container [2025-02-08 05:10:07,792 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:10:06" (2/3) ... [2025-02-08 05:10:07,792 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@454bb6d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 05:10:07, skipping insertion in model container [2025-02-08 05:10:07,792 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 05:10:07" (3/3) ... [2025-02-08 05:10:07,793 INFO L128 eAbstractionObserver]: Analyzing ICFG 04_incdec_cas.i [2025-02-08 05:10:07,804 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 05:10:07,805 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 04_incdec_cas.i that has 2 procedures, 107 locations, 1 initial locations, 3 loop locations, and 18 error locations. [2025-02-08 05:10:07,805 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-08 05:10:07,847 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 05:10:07,851 INFO L158 Benchmark]: Toolchain (without parser) took 1422.69ms. Allocated memory is still 117.4MB. Free memory was 90.8MB in the beginning and 68.4MB in the end (delta: 22.4MB). Peak memory consumption was 26.5MB. Max. memory is 16.1GB. [2025-02-08 05:10:07,851 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 83.9MB. Free memory is still 62.0MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 05:10:07,851 INFO L158 Benchmark]: CACSL2BoogieTranslator took 349.54ms. Allocated memory is still 117.4MB. Free memory was 90.8MB in the beginning and 68.5MB in the end (delta: 22.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-02-08 05:10:07,851 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.02ms. Allocated memory is still 117.4MB. Free memory was 68.5MB in the beginning and 65.7MB in the end (delta: 2.8MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 05:10:07,856 INFO L158 Benchmark]: Boogie Preprocessor took 41.02ms. Allocated memory is still 117.4MB. Free memory was 65.7MB in the beginning and 62.2MB in the end (delta: 3.4MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 05:10:07,856 INFO L158 Benchmark]: IcfgBuilder took 916.78ms. Allocated memory is still 117.4MB. Free memory was 62.2MB in the beginning and 85.3MB in the end (delta: -23.1MB). Peak memory consumption was 47.9MB. Max. memory is 16.1GB. [2025-02-08 05:10:07,856 INFO L158 Benchmark]: TraceAbstraction took 61.28ms. Allocated memory is still 117.4MB. Free memory was 84.4MB in the beginning and 68.4MB in the end (delta: 16.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-08 05:10:07,857 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 83.9MB. Free memory is still 62.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 349.54ms. Allocated memory is still 117.4MB. Free memory was 90.8MB in the beginning and 68.5MB in the end (delta: 22.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.02ms. Allocated memory is still 117.4MB. Free memory was 68.5MB in the beginning and 65.7MB in the end (delta: 2.8MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 41.02ms. Allocated memory is still 117.4MB. Free memory was 65.7MB in the beginning and 62.2MB in the end (delta: 3.4MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 916.78ms. Allocated memory is still 117.4MB. Free memory was 62.2MB in the beginning and 85.3MB in the end (delta: -23.1MB). Peak memory consumption was 47.9MB. Max. memory is 16.1GB. * TraceAbstraction took 61.28ms. Allocated memory is still 117.4MB. Free memory was 84.4MB in the beginning and 68.4MB in the end (delta: 16.0MB). 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 05:10:07,870 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally 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