./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/pthread-atomic/qrcu-2.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-atomic/qrcu-2.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 d1980d3c26a5811df2d100379a9d31e1e9ec963bc59bfe660be33ada51bfb014 --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 05:09:39,214 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 05:09:39,298 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-02-08 05:09:39,302 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 05:09:39,302 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 05:09:39,330 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 05:09:39,331 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 05:09:39,332 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 05:09:39,333 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 05:09:39,333 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 05:09:39,333 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 05:09:39,333 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 05:09:39,334 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 05:09:39,334 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 05:09:39,335 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-08 05:09:39,335 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 05:09:39,335 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 05:09:39,335 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 05:09:39,336 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 05:09:39,336 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-08 05:09:39,336 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 05:09:39,336 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-08 05:09:39,336 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-02-08 05:09:39,336 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 05:09:39,336 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 05:09:39,336 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 05:09:39,336 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 05:09:39,336 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 05:09:39,337 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 05:09:39,337 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 05:09:39,337 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 05:09:39,337 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 05:09:39,337 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 05:09:39,337 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 05:09:39,337 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-08 05:09:39,337 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-08 05:09:39,337 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 05:09:39,337 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 05:09:39,337 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 05:09:39,337 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 05:09:39,337 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 05:09:39,338 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 05:09:39,338 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 -> d1980d3c26a5811df2d100379a9d31e1e9ec963bc59bfe660be33ada51bfb014 [2025-02-08 05:09:39,620 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 05:09:39,631 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 05:09:39,633 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 05:09:39,635 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 05:09:39,636 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 05:09:39,638 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-atomic/qrcu-2.i [2025-02-08 05:09:40,983 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/fef66ec5e/abbf1a8136534e1286823852900b53e7/FLAGb55be462e [2025-02-08 05:09:41,359 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 05:09:41,360 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-atomic/qrcu-2.i [2025-02-08 05:09:41,379 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/fef66ec5e/abbf1a8136534e1286823852900b53e7/FLAGb55be462e [2025-02-08 05:09:41,398 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/fef66ec5e/abbf1a8136534e1286823852900b53e7 [2025-02-08 05:09:41,401 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 05:09:41,403 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 05:09:41,405 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 05:09:41,405 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 05:09:41,409 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 05:09:41,410 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 05:09:41" (1/1) ... [2025-02-08 05:09:41,411 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32182076 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:09:41, skipping insertion in model container [2025-02-08 05:09:41,411 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 05:09:41" (1/1) ... [2025-02-08 05:09:41,447 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 05:09:41,711 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 05:09:41,726 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 05:09:41,773 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 05:09:41,809 INFO L204 MainTranslator]: Completed translation [2025-02-08 05:09:41,809 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:09:41 WrapperNode [2025-02-08 05:09:41,810 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 05:09:41,811 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 05:09:41,812 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 05:09:41,812 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 05:09:41,818 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:09:41" (1/1) ... [2025-02-08 05:09:41,828 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:09:41" (1/1) ... [2025-02-08 05:09:41,864 INFO L138 Inliner]: procedures = 177, calls = 32, calls flagged for inlining = 17, calls inlined = 19, statements flattened = 416 [2025-02-08 05:09:41,864 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 05:09:41,865 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 05:09:41,865 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 05:09:41,865 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 05:09:41,871 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:09:41" (1/1) ... [2025-02-08 05:09:41,872 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:09:41" (1/1) ... [2025-02-08 05:09:41,875 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:09:41" (1/1) ... [2025-02-08 05:09:41,876 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:09:41" (1/1) ... [2025-02-08 05:09:41,883 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:09:41" (1/1) ... [2025-02-08 05:09:41,884 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:09:41" (1/1) ... [2025-02-08 05:09:41,886 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:09:41" (1/1) ... [2025-02-08 05:09:41,887 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:09:41" (1/1) ... [2025-02-08 05:09:41,890 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 05:09:41,891 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 05:09:41,891 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 05:09:41,891 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 05:09:41,892 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:09:41" (1/1) ... [2025-02-08 05:09:41,897 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 05:09:41,908 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 05:09:41,918 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 05:09:41,921 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 05:09:41,937 INFO L130 BoogieDeclarations]: Found specification of procedure qrcu_reader1 [2025-02-08 05:09:41,937 INFO L138 BoogieDeclarations]: Found implementation of procedure qrcu_reader1 [2025-02-08 05:09:41,938 INFO L130 BoogieDeclarations]: Found specification of procedure qrcu_reader2 [2025-02-08 05:09:41,938 INFO L138 BoogieDeclarations]: Found implementation of procedure qrcu_reader2 [2025-02-08 05:09:41,938 INFO L130 BoogieDeclarations]: Found specification of procedure qrcu_updater [2025-02-08 05:09:41,938 INFO L138 BoogieDeclarations]: Found implementation of procedure qrcu_updater [2025-02-08 05:09:41,938 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-02-08 05:09:41,938 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 05:09:41,938 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-02-08 05:09:41,938 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-02-08 05:09:41,938 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 05:09:41,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 05:09:41,939 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 05:09:42,060 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 05:09:42,062 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 05:09:42,665 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L779: #res#1.base, #res#1.offset := 0, 0; [2025-02-08 05:09:42,667 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L3: assume 0 == assume_abort_if_not_~cond#1; [2025-02-08 05:09:42,668 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L3: assume !(0 == assume_abort_if_not_~cond#1); [2025-02-08 05:09:42,668 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L3-1: assume false; [2025-02-08 05:09:42,668 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L716: __VERIFIER_atomic_check_progress2_~readerstart2#1 := __VERIFIER_atomic_check_progress2_#in~readerstart2#1; [2025-02-08 05:09:42,668 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L717: assume 0 != __VERIFIER_atomic_check_progress2_#t~nondet15#1; [2025-02-08 05:09:42,668 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L717: assume !(0 != __VERIFIER_atomic_check_progress2_#t~nondet15#1); [2025-02-08 05:09:42,668 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L717-1: havoc __VERIFIER_atomic_check_progress2_#t~nondet15#1; [2025-02-08 05:09:42,668 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L717-2: havoc __VERIFIER_atomic_check_progress2_#t~nondet15#1; [2025-02-08 05:09:42,669 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L717-3: assume -2147483648 <= __VERIFIER_atomic_check_progress2_#t~nondet15#1 && __VERIFIER_atomic_check_progress2_#t~nondet15#1 <= 2147483647; [2025-02-08 05:09:42,669 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L717-4: havoc __VERIFIER_atomic_check_progress2_#t~nondet15#1; [2025-02-08 05:09:42,669 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L718: assume { :end_inline_assume_abort_if_not } true;havoc __VERIFIER_atomic_check_progress2_#t~short16#1; [2025-02-08 05:09:42,669 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L718-1: havoc assume_abort_if_not_#in~cond#1; [2025-02-08 05:09:42,669 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L718-2: havoc assume_abort_if_not_~cond#1; [2025-02-08 05:09:42,670 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L718-3: havoc assume_abort_if_not_~cond#1; [2025-02-08 05:09:42,670 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L718-4: assume { :begin_inline_assume_abort_if_not } true;assume_abort_if_not_#in~cond#1 := (if __VERIFIER_atomic_check_progress2_#t~short16#1 then 1 else 0); [2025-02-08 05:09:42,670 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L718-5: assume 0 == #race~readerprogress2~0; [2025-02-08 05:09:42,670 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L718-5: assume !(0 == #race~readerprogress2~0); [2025-02-08 05:09:42,671 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L718-6: __VERIFIER_atomic_check_progress2_#t~short16#1 := 1 == ~readerprogress2~0; [2025-02-08 05:09:42,671 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L718-7: assume __VERIFIER_atomic_check_progress2_#t~short16#1; [2025-02-08 05:09:42,671 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L718-7: assume !__VERIFIER_atomic_check_progress2_#t~short16#1; [2025-02-08 05:09:42,671 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L718-8: #race~readerprogress2~0 := 0; [2025-02-08 05:09:42,671 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L718-9: __VERIFIER_atomic_check_progress2_#t~short16#1 := 1 == __VERIFIER_atomic_check_progress2_~readerstart2#1; [2025-02-08 05:09:42,671 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L719: assume { :end_inline_reach_error } true;assume false; [2025-02-08 05:09:42,671 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L719-1: havoc reach_error_#t~nondet0#1.base, reach_error_#t~nondet0#1.offset; [2025-02-08 05:09:42,672 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L719-2: assume true;assume { :begin_inline_reach_error } true;havoc reach_error_#t~nondet0#1.base, reach_error_#t~nondet0#1.offset; [2025-02-08 05:09:42,672 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L719-2: assume !true; [2025-02-08 05:09:42,672 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint qrcu_updaterFINAL: assume true; [2025-02-08 05:09:42,672 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L16: assume false; [2025-02-08 05:09:42,672 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L16: assume !false; [2025-02-08 05:09:42,672 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L16-1: assume false; [2025-02-08 05:09:42,672 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L777: [2025-02-08 05:09:42,673 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L777-1: havoc __VERIFIER_atomic_check_progress1_#in~readerstart1#1;assume { :end_inline___VERIFIER_atomic_check_progress1 } true; [2025-02-08 05:09:42,673 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L777-2: havoc __VERIFIER_atomic_check_progress1_#t~nondet13#1, __VERIFIER_atomic_check_progress1_#t~short14#1, __VERIFIER_atomic_check_progress1_~readerstart1#1; [2025-02-08 05:09:42,673 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L778: [2025-02-08 05:09:42,673 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L778-1: havoc __VERIFIER_atomic_check_progress2_#in~readerstart2#1;assume { :end_inline___VERIFIER_atomic_check_progress2 } true; [2025-02-08 05:09:42,674 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L778-2: havoc __VERIFIER_atomic_check_progress2_#t~nondet15#1, __VERIFIER_atomic_check_progress2_#t~short16#1, __VERIFIER_atomic_check_progress2_~readerstart2#1; [2025-02-08 05:09:42,674 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L778-3: havoc __VERIFIER_atomic_check_progress2_#t~nondet15#1, __VERIFIER_atomic_check_progress2_#t~short16#1, __VERIFIER_atomic_check_progress2_~readerstart2#1; [2025-02-08 05:09:42,674 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L778-4: assume { :begin_inline___VERIFIER_atomic_check_progress2 } true;__VERIFIER_atomic_check_progress2_#in~readerstart2#1 := ~readerstart2~0#1; [2025-02-08 05:09:42,674 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L2: assume_abort_if_not_~cond#1 := assume_abort_if_not_#in~cond#1; [2025-02-08 05:09:42,737 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-08 05:09:42,737 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 05:09:42,998 WARN L149 AtomicBlockAnalyzer]: Unexpected successor node of atomic block begin: L714 is not an error location. [2025-02-08 05:09:43,001 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 05:09:43,002 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 05:09:43,002 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 05:09:43 BoogieIcfgContainer [2025-02-08 05:09:43,002 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 05:09:43,005 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 05:09:43,005 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 05:09:43,009 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 05:09:43,010 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 05:09:41" (1/3) ... [2025-02-08 05:09:43,010 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8c47f3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 05:09:43, skipping insertion in model container [2025-02-08 05:09:43,010 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:09:41" (2/3) ... [2025-02-08 05:09:43,011 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8c47f3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 05:09:43, skipping insertion in model container [2025-02-08 05:09:43,011 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 05:09:43" (3/3) ... [2025-02-08 05:09:43,012 INFO L128 eAbstractionObserver]: Analyzing ICFG qrcu-2.i [2025-02-08 05:09:43,026 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 05:09:43,028 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG qrcu-2.i that has 4 procedures, 276 locations, 1 initial locations, 4 loop locations, and 52 error locations. [2025-02-08 05:09:43,028 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-08 05:09:43,121 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 05:09:43,128 INFO L158 Benchmark]: Toolchain (without parser) took 1724.57ms. Allocated memory is still 142.6MB. Free memory was 110.4MB in the beginning and 74.4MB in the end (delta: 36.0MB). Peak memory consumption was 40.3MB. Max. memory is 16.1GB. [2025-02-08 05:09:43,129 INFO L158 Benchmark]: CDTParser took 0.68ms. Allocated memory is still 201.3MB. Free memory is still 123.9MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 05:09:43,129 INFO L158 Benchmark]: CACSL2BoogieTranslator took 405.49ms. Allocated memory is still 142.6MB. Free memory was 110.4MB in the beginning and 88.7MB in the end (delta: 21.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-02-08 05:09:43,129 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.93ms. Allocated memory is still 142.6MB. Free memory was 88.7MB in the beginning and 86.0MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 05:09:43,130 INFO L158 Benchmark]: Boogie Preprocessor took 25.51ms. Allocated memory is still 142.6MB. Free memory was 86.0MB in the beginning and 84.2MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 05:09:43,131 INFO L158 Benchmark]: IcfgBuilder took 1110.97ms. Allocated memory is still 142.6MB. Free memory was 84.2MB in the beginning and 86.8MB in the end (delta: -2.6MB). Peak memory consumption was 57.0MB. Max. memory is 16.1GB. [2025-02-08 05:09:43,133 INFO L158 Benchmark]: TraceAbstraction took 121.09ms. Allocated memory is still 142.6MB. Free memory was 86.8MB in the beginning and 74.4MB in the end (delta: 12.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-08 05:09:43,135 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.68ms. Allocated memory is still 201.3MB. Free memory is still 123.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 405.49ms. Allocated memory is still 142.6MB. Free memory was 110.4MB in the beginning and 88.7MB in the end (delta: 21.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 53.93ms. Allocated memory is still 142.6MB. Free memory was 88.7MB in the beginning and 86.0MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 25.51ms. Allocated memory is still 142.6MB. Free memory was 86.0MB in the beginning and 84.2MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 1110.97ms. Allocated memory is still 142.6MB. Free memory was 84.2MB in the beginning and 86.8MB in the end (delta: -2.6MB). Peak memory consumption was 57.0MB. Max. memory is 16.1GB. * TraceAbstraction took 121.09ms. Allocated memory is still 142.6MB. Free memory was 86.8MB in the beginning and 74.4MB in the end (delta: 12.5MB). 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 05:09:43,150 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-atomic/qrcu-2.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 d1980d3c26a5811df2d100379a9d31e1e9ec963bc59bfe660be33ada51bfb014 --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 05:09:45,369 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 05:09:45,452 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Bitvector.epf [2025-02-08 05:09:45,460 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 05:09:45,460 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 05:09:45,485 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 05:09:45,489 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 05:09:45,489 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 05:09:45,490 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 05:09:45,490 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 05:09:45,492 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 05:09:45,492 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 05:09:45,492 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 05:09:45,492 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 05:09:45,492 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-08 05:09:45,492 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 05:09:45,492 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 05:09:45,492 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 05:09:45,492 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-08 05:09:45,492 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 05:09:45,493 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-08 05:09:45,493 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-02-08 05:09:45,493 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-02-08 05:09:45,493 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-02-08 05:09:45,493 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 05:09:45,493 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 05:09:45,493 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 05:09:45,493 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 05:09:45,493 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 05:09:45,493 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 05:09:45,493 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 05:09:45,493 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 05:09:45,493 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 05:09:45,494 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 05:09:45,494 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 05:09:45,494 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-08 05:09:45,494 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-08 05:09:45,494 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-02-08 05:09:45,494 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-02-08 05:09:45,494 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 05:09:45,494 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 05:09:45,494 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 05:09:45,494 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 05:09:45,494 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 -> d1980d3c26a5811df2d100379a9d31e1e9ec963bc59bfe660be33ada51bfb014 [2025-02-08 05:09:45,789 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 05:09:45,799 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 05:09:45,801 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 05:09:45,803 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 05:09:45,803 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 05:09:45,804 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-atomic/qrcu-2.i [2025-02-08 05:09:47,182 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/c8695fa3a/a0233a15cb1647ed9217a332199e9e94/FLAG815f8bd75 [2025-02-08 05:09:47,494 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 05:09:47,501 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-atomic/qrcu-2.i [2025-02-08 05:09:47,519 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/c8695fa3a/a0233a15cb1647ed9217a332199e9e94/FLAG815f8bd75 [2025-02-08 05:09:47,536 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/c8695fa3a/a0233a15cb1647ed9217a332199e9e94 [2025-02-08 05:09:47,539 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 05:09:47,541 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 05:09:47,543 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 05:09:47,543 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 05:09:47,547 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 05:09:47,548 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 05:09:47" (1/1) ... [2025-02-08 05:09:47,549 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2fa3f3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:09:47, skipping insertion in model container [2025-02-08 05:09:47,550 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 05:09:47" (1/1) ... [2025-02-08 05:09:47,585 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 05:09:47,984 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 05:09:48,010 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 05:09:48,080 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 05:09:48,135 INFO L204 MainTranslator]: Completed translation [2025-02-08 05:09:48,135 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:09:48 WrapperNode [2025-02-08 05:09:48,136 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 05:09:48,137 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 05:09:48,137 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 05:09:48,138 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 05:09:48,144 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:09:48" (1/1) ... [2025-02-08 05:09:48,162 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:09:48" (1/1) ... [2025-02-08 05:09:48,193 INFO L138 Inliner]: procedures = 181, calls = 32, calls flagged for inlining = 17, calls inlined = 19, statements flattened = 407 [2025-02-08 05:09:48,194 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 05:09:48,194 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 05:09:48,194 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 05:09:48,195 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 05:09:48,203 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:09:48" (1/1) ... [2025-02-08 05:09:48,203 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:09:48" (1/1) ... [2025-02-08 05:09:48,211 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:09:48" (1/1) ... [2025-02-08 05:09:48,216 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:09:48" (1/1) ... [2025-02-08 05:09:48,225 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:09:48" (1/1) ... [2025-02-08 05:09:48,227 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:09:48" (1/1) ... [2025-02-08 05:09:48,230 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:09:48" (1/1) ... [2025-02-08 05:09:48,231 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:09:48" (1/1) ... [2025-02-08 05:09:48,235 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 05:09:48,236 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 05:09:48,236 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 05:09:48,236 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 05:09:48,237 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:09:48" (1/1) ... [2025-02-08 05:09:48,246 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 05:09:48,255 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 05:09:48,271 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 05:09:48,274 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 05:09:48,294 INFO L130 BoogieDeclarations]: Found specification of procedure qrcu_reader1 [2025-02-08 05:09:48,294 INFO L138 BoogieDeclarations]: Found implementation of procedure qrcu_reader1 [2025-02-08 05:09:48,294 INFO L130 BoogieDeclarations]: Found specification of procedure qrcu_reader2 [2025-02-08 05:09:48,294 INFO L138 BoogieDeclarations]: Found implementation of procedure qrcu_reader2 [2025-02-08 05:09:48,294 INFO L130 BoogieDeclarations]: Found specification of procedure qrcu_updater [2025-02-08 05:09:48,294 INFO L138 BoogieDeclarations]: Found implementation of procedure qrcu_updater [2025-02-08 05:09:48,295 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-02-08 05:09:48,295 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 05:09:48,295 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2025-02-08 05:09:48,295 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2025-02-08 05:09:48,295 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-02-08 05:09:48,295 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 05:09:48,295 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 05:09:48,297 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 05:09:48,422 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 05:09:48,424 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 05:09:49,002 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L779: #res#1.base, #res#1.offset := 0bv32, 0bv32; [2025-02-08 05:09:49,003 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L3: assume 0bv32 == assume_abort_if_not_~cond#1; [2025-02-08 05:09:49,003 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L3: assume !(0bv32 == assume_abort_if_not_~cond#1); [2025-02-08 05:09:49,003 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L3-1: assume false; [2025-02-08 05:09:49,003 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L716: __VERIFIER_atomic_check_progress2_~readerstart2#1 := __VERIFIER_atomic_check_progress2_#in~readerstart2#1; [2025-02-08 05:09:49,003 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L717: assume 0bv32 != __VERIFIER_atomic_check_progress2_#t~nondet15#1; [2025-02-08 05:09:49,003 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L717: assume !(0bv32 != __VERIFIER_atomic_check_progress2_#t~nondet15#1); [2025-02-08 05:09:49,003 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L717-1: havoc __VERIFIER_atomic_check_progress2_#t~nondet15#1; [2025-02-08 05:09:49,003 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L717-2: havoc __VERIFIER_atomic_check_progress2_#t~nondet15#1; [2025-02-08 05:09:49,003 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L717-3: havoc __VERIFIER_atomic_check_progress2_#t~nondet15#1; [2025-02-08 05:09:49,003 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L718: assume { :end_inline_assume_abort_if_not } true;havoc __VERIFIER_atomic_check_progress2_#t~short16#1; [2025-02-08 05:09:49,003 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L718-1: havoc assume_abort_if_not_#in~cond#1; [2025-02-08 05:09:49,003 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L718-2: havoc assume_abort_if_not_~cond#1; [2025-02-08 05:09:49,003 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L718-3: havoc assume_abort_if_not_~cond#1; [2025-02-08 05:09:49,003 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L718-4: assume { :begin_inline_assume_abort_if_not } true;assume_abort_if_not_#in~cond#1 := (if __VERIFIER_atomic_check_progress2_#t~short16#1 then 1bv32 else 0bv32); [2025-02-08 05:09:49,005 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L718-5: assume 0bv1 == #race~readerprogress2~0; [2025-02-08 05:09:49,005 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L718-5: assume !(0bv1 == #race~readerprogress2~0); [2025-02-08 05:09:49,006 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L718-6: __VERIFIER_atomic_check_progress2_#t~short16#1 := 1bv32 == ~readerprogress2~0; [2025-02-08 05:09:49,006 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L718-7: assume __VERIFIER_atomic_check_progress2_#t~short16#1; [2025-02-08 05:09:49,006 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L718-7: assume !__VERIFIER_atomic_check_progress2_#t~short16#1; [2025-02-08 05:09:49,006 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L718-8: #race~readerprogress2~0 := 0bv1; [2025-02-08 05:09:49,006 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L718-9: __VERIFIER_atomic_check_progress2_#t~short16#1 := 1bv32 == __VERIFIER_atomic_check_progress2_~readerstart2#1; [2025-02-08 05:09:49,006 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L719: assume { :end_inline_reach_error } true;assume false; [2025-02-08 05:09:49,006 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L719-1: havoc reach_error_#t~nondet0#1.base, reach_error_#t~nondet0#1.offset; [2025-02-08 05:09:49,006 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L719-2: assume true;assume { :begin_inline_reach_error } true;havoc reach_error_#t~nondet0#1.base, reach_error_#t~nondet0#1.offset; [2025-02-08 05:09:49,006 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L719-2: assume !true; [2025-02-08 05:09:49,006 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint qrcu_updaterFINAL: assume true; [2025-02-08 05:09:49,006 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L16: assume false; [2025-02-08 05:09:49,006 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L16: assume !false; [2025-02-08 05:09:49,006 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L16-1: assume false; [2025-02-08 05:09:49,007 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L777: [2025-02-08 05:09:49,007 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L777-1: havoc __VERIFIER_atomic_check_progress1_#in~readerstart1#1;assume { :end_inline___VERIFIER_atomic_check_progress1 } true; [2025-02-08 05:09:49,007 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L777-2: havoc __VERIFIER_atomic_check_progress1_#t~nondet13#1, __VERIFIER_atomic_check_progress1_#t~short14#1, __VERIFIER_atomic_check_progress1_~readerstart1#1; [2025-02-08 05:09:49,007 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L778: [2025-02-08 05:09:49,007 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L778-1: havoc __VERIFIER_atomic_check_progress2_#in~readerstart2#1;assume { :end_inline___VERIFIER_atomic_check_progress2 } true; [2025-02-08 05:09:49,008 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L778-2: havoc __VERIFIER_atomic_check_progress2_#t~nondet15#1, __VERIFIER_atomic_check_progress2_#t~short16#1, __VERIFIER_atomic_check_progress2_~readerstart2#1; [2025-02-08 05:09:49,008 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L778-3: havoc __VERIFIER_atomic_check_progress2_#t~nondet15#1, __VERIFIER_atomic_check_progress2_#t~short16#1, __VERIFIER_atomic_check_progress2_~readerstart2#1; [2025-02-08 05:09:49,008 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L778-4: assume { :begin_inline___VERIFIER_atomic_check_progress2 } true;__VERIFIER_atomic_check_progress2_#in~readerstart2#1 := ~readerstart2~0#1; [2025-02-08 05:09:49,008 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L2: assume_abort_if_not_~cond#1 := assume_abort_if_not_#in~cond#1; [2025-02-08 05:09:49,061 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-08 05:09:49,061 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 05:09:49,371 WARN L149 AtomicBlockAnalyzer]: Unexpected successor node of atomic block begin: L714 is not an error location. [2025-02-08 05:09:49,373 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 05:09:49,373 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 05:09:49,373 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 05:09:49 BoogieIcfgContainer [2025-02-08 05:09:49,373 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 05:09:49,376 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 05:09:49,376 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 05:09:49,381 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 05:09:49,381 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 05:09:47" (1/3) ... [2025-02-08 05:09:49,382 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@436bb67d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 05:09:49, skipping insertion in model container [2025-02-08 05:09:49,382 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:09:48" (2/3) ... [2025-02-08 05:09:49,383 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@436bb67d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 05:09:49, skipping insertion in model container [2025-02-08 05:09:49,383 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 05:09:49" (3/3) ... [2025-02-08 05:09:49,384 INFO L128 eAbstractionObserver]: Analyzing ICFG qrcu-2.i [2025-02-08 05:09:49,398 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 05:09:49,399 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG qrcu-2.i that has 4 procedures, 269 locations, 1 initial locations, 4 loop locations, and 52 error locations. [2025-02-08 05:09:49,400 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-08 05:09:49,501 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 05:09:49,506 INFO L158 Benchmark]: Toolchain (without parser) took 1965.01ms. Allocated memory was 83.9MB in the beginning and 100.7MB in the end (delta: 16.8MB). Free memory was 57.1MB in the beginning and 42.9MB in the end (delta: 14.2MB). Peak memory consumption was 32.3MB. Max. memory is 16.1GB. [2025-02-08 05:09:49,507 INFO L158 Benchmark]: CDTParser took 1.28ms. Allocated memory is still 83.9MB. Free memory is still 46.2MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 05:09:49,507 INFO L158 Benchmark]: CACSL2BoogieTranslator took 592.89ms. Allocated memory is still 83.9MB. Free memory was 57.1MB in the beginning and 54.9MB in the end (delta: 2.2MB). Peak memory consumption was 29.5MB. Max. memory is 16.1GB. [2025-02-08 05:09:49,507 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.19ms. Allocated memory is still 83.9MB. Free memory was 54.9MB in the beginning and 52.0MB in the end (delta: 2.9MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 05:09:49,510 INFO L158 Benchmark]: Boogie Preprocessor took 40.74ms. Allocated memory is still 83.9MB. Free memory was 52.0MB in the beginning and 49.9MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 05:09:49,511 INFO L158 Benchmark]: IcfgBuilder took 1137.66ms. Allocated memory was 83.9MB in the beginning and 100.7MB in the end (delta: 16.8MB). Free memory was 49.9MB in the beginning and 59.7MB in the end (delta: -9.8MB). Peak memory consumption was 44.7MB. Max. memory is 16.1GB. [2025-02-08 05:09:49,512 INFO L158 Benchmark]: TraceAbstraction took 128.92ms. Allocated memory is still 100.7MB. Free memory was 59.0MB in the beginning and 42.9MB in the end (delta: 16.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-08 05:09:49,514 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.28ms. Allocated memory is still 83.9MB. Free memory is still 46.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 592.89ms. Allocated memory is still 83.9MB. Free memory was 57.1MB in the beginning and 54.9MB in the end (delta: 2.2MB). Peak memory consumption was 29.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 57.19ms. Allocated memory is still 83.9MB. Free memory was 54.9MB in the beginning and 52.0MB in the end (delta: 2.9MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 40.74ms. Allocated memory is still 83.9MB. Free memory was 52.0MB in the beginning and 49.9MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 1137.66ms. Allocated memory was 83.9MB in the beginning and 100.7MB in the end (delta: 16.8MB). Free memory was 49.9MB in the beginning and 59.7MB in the end (delta: -9.8MB). Peak memory consumption was 44.7MB. Max. memory is 16.1GB. * TraceAbstraction took 128.92ms. Allocated memory is still 100.7MB. Free memory was 59.0MB in the beginning and 42.9MB 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 05:09:49,535 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