./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/pthread/queue_ok.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows 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/queue_ok.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-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 ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7cc273f13a619f37768d5108c297b75ab7c37145fe391daced9c134730721251 --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 13:53:10,354 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 13:53:10,418 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-02-08 13:53:10,423 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 13:53:10,423 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 13:53:10,444 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 13:53:10,445 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 13:53:10,445 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 13:53:10,446 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 13:53:10,446 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 13:53:10,446 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 13:53:10,446 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 13:53:10,446 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 13:53:10,446 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 13:53:10,446 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 13:53:10,446 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 13:53:10,446 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-08 13:53:10,446 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 13:53:10,447 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 13:53:10,447 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 13:53:10,447 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 13:53:10,447 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-08 13:53:10,447 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 13:53:10,447 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-08 13:53:10,447 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-02-08 13:53:10,447 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 13:53:10,447 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 13:53:10,447 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 13:53:10,447 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 13:53:10,447 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 13:53:10,450 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 13:53:10,450 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 13:53:10,450 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 13:53:10,450 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 13:53:10,450 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 13:53:10,450 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 13:53:10,450 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 13:53:10,450 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-08 13:53:10,450 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-08 13:53:10,451 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 13:53:10,451 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 13:53:10,451 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 13:53:10,451 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 13:53:10,451 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 13:53:10,451 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 13:53:10,452 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 ! overflow) ) 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 -> 7cc273f13a619f37768d5108c297b75ab7c37145fe391daced9c134730721251 [2025-02-08 13:53:10,715 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 13:53:10,723 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 13:53:10,725 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 13:53:10,726 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 13:53:10,726 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 13:53:10,728 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread/queue_ok.i [2025-02-08 13:53:11,973 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/ccf09f344/1fafc2b402aa43e1a45342ee95d1728d/FLAG2b6220de8 [2025-02-08 13:53:12,321 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 13:53:12,323 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread/queue_ok.i [2025-02-08 13:53:12,338 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/ccf09f344/1fafc2b402aa43e1a45342ee95d1728d/FLAG2b6220de8 [2025-02-08 13:53:12,579 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/ccf09f344/1fafc2b402aa43e1a45342ee95d1728d [2025-02-08 13:53:12,581 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 13:53:12,582 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 13:53:12,583 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 13:53:12,584 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 13:53:12,587 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 13:53:12,589 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 01:53:12" (1/1) ... [2025-02-08 13:53:12,590 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34c577f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:53:12, skipping insertion in model container [2025-02-08 13:53:12,591 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 01:53:12" (1/1) ... [2025-02-08 13:53:12,630 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 13:53:13,015 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 13:53:13,030 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 13:53:13,101 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 13:53:13,155 INFO L204 MainTranslator]: Completed translation [2025-02-08 13:53:13,156 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:53:13 WrapperNode [2025-02-08 13:53:13,156 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 13:53:13,157 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 13:53:13,157 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 13:53:13,157 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 13:53:13,162 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:53:13" (1/1) ... [2025-02-08 13:53:13,183 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:53:13" (1/1) ... [2025-02-08 13:53:13,219 INFO L138 Inliner]: procedures = 274, calls = 94, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 247 [2025-02-08 13:53:13,219 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 13:53:13,220 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 13:53:13,220 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 13:53:13,220 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 13:53:13,228 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:53:13" (1/1) ... [2025-02-08 13:53:13,229 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:53:13" (1/1) ... [2025-02-08 13:53:13,235 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:53:13" (1/1) ... [2025-02-08 13:53:13,251 INFO L175 MemorySlicer]: Split 75 memory accesses to 4 slices as follows [2, 5, 22, 46]. 61 percent of accesses are in the largest equivalence class. The 50 initializations are split as follows [2, 5, 20, 23]. The 11 writes are split as follows [0, 0, 1, 10]. [2025-02-08 13:53:13,251 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:53:13" (1/1) ... [2025-02-08 13:53:13,251 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:53:13" (1/1) ... [2025-02-08 13:53:13,259 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:53:13" (1/1) ... [2025-02-08 13:53:13,260 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:53:13" (1/1) ... [2025-02-08 13:53:13,264 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:53:13" (1/1) ... [2025-02-08 13:53:13,265 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:53:13" (1/1) ... [2025-02-08 13:53:13,267 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 13:53:13,268 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 13:53:13,268 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 13:53:13,268 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 13:53:13,269 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:53:13" (1/1) ... [2025-02-08 13:53:13,273 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 13:53:13,284 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 13:53:13,298 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 13:53:13,304 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 13:53:13,320 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2025-02-08 13:53:13,321 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2025-02-08 13:53:13,321 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2025-02-08 13:53:13,321 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2025-02-08 13:53:13,321 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-02-08 13:53:13,321 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-02-08 13:53:13,321 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-02-08 13:53:13,321 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-02-08 13:53:13,321 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-02-08 13:53:13,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-02-08 13:53:13,322 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-02-08 13:53:13,322 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-02-08 13:53:13,322 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-02-08 13:53:13,322 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-02-08 13:53:13,322 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 13:53:13,322 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-08 13:53:13,323 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-08 13:53:13,323 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-02-08 13:53:13,323 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-02-08 13:53:13,323 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 13:53:13,323 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 13:53:13,324 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 13:53:13,448 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 13:53:13,449 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 13:53:13,658 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1051: #pthreadsMutex := #pthreadsMutex[~#m~0.base,~#m~0.offset := 0]; [2025-02-08 13:53:13,659 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2025-02-08 13:53:13,659 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1052: havoc main_#t~nondet62#1; [2025-02-08 13:53:13,659 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1052-1: havoc main_#t~pre61#1; [2025-02-08 13:53:13,659 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1052-2: fork main_#t~pre61#1, 0 t1(~#queue~0.base, ~#queue~0.offset); [2025-02-08 13:53:13,659 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1052-3: main_~id1~0#1 := main_#t~pre61#1; [2025-02-08 13:53:13,659 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1052-4: #pthreadsForks := 1 + #pthreadsForks; [2025-02-08 13:53:13,659 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1052-5: main_#t~pre61#1 := #pthreadsForks; [2025-02-08 13:53:13,659 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1053: havoc main_#t~nondet64#1; [2025-02-08 13:53:13,659 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1053-1: havoc main_#t~pre63#1; [2025-02-08 13:53:13,659 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1053-2: fork main_#t~pre63#1, 0, 0 t2(~#queue~0.base, ~#queue~0.offset); [2025-02-08 13:53:13,659 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1053-3: main_~id2~0#1 := main_#t~pre63#1; [2025-02-08 13:53:13,659 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1053-4: #pthreadsForks := 1 + #pthreadsForks; [2025-02-08 13:53:13,659 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1053-5: main_#t~pre63#1 := #pthreadsForks; [2025-02-08 13:53:13,659 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L21: assume false; [2025-02-08 13:53:13,659 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L21: assume !false; [2025-02-08 13:53:13,660 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L21-1: assume false; [2025-02-08 13:53:13,660 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1054: join main_~id1~0#1, 0; [2025-02-08 13:53:13,660 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1055: join main_~id2~0#1, 0, 0; [2025-02-08 13:53:13,660 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1056: main_#res#1 := 0; [2025-02-08 13:53:13,660 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L-1: havoc main_#t~ret60#1, main_#t~pre61#1, main_#t~nondet62#1, main_#t~pre63#1, main_#t~nondet64#1, main_~id1~0#1, main_~id2~0#1;assume { :end_inline_main } true; [2025-02-08 13:53:13,660 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L-1-1: #t~ret65#1 := main_#res#1; [2025-02-08 13:53:13,660 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1048: assume -1 == (if 0 == main_#t~ret60#1 then 1 else 0); [2025-02-08 13:53:13,660 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1048: assume !(-1 == (if 0 == main_#t~ret60#1 then 1 else 0)); [2025-02-08 13:53:13,660 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1048-1: havoc main_#t~ret60#1; [2025-02-08 13:53:13,660 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1048-2: havoc main_#t~ret60#1; [2025-02-08 13:53:13,660 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1048-3: assume { :end_inline_empty } true;assume -2147483648 <= main_#t~ret60#1 && main_#t~ret60#1 <= 2147483647; [2025-02-08 13:53:13,660 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1048-4: havoc empty_#in~q#1.base, empty_#in~q#1.offset; [2025-02-08 13:53:13,660 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1048-5: havoc empty_#t~mem31#1, empty_#t~mem32#1, empty_#t~ret33#1, empty_~q#1.base, empty_~q#1.offset; [2025-02-08 13:53:13,660 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1048-6: main_#t~ret60#1 := empty_#res#1; [2025-02-08 13:53:13,660 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1049: assume { :end_inline_reach_error } true;assume false; [2025-02-08 13:53:13,660 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1049-1: havoc reach_error_#t~nondet0#1.base, reach_error_#t~nondet0#1.offset; [2025-02-08 13:53:13,660 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1049-2: assume { :begin_inline_reach_error } true;havoc reach_error_#t~nondet0#1.base, reach_error_#t~nondet0#1.offset; [2025-02-08 13:53:13,734 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1014: havoc #t~ret51#1; [2025-02-08 13:53:13,734 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1014-1: assume { :end_inline_enqueue } true;assume -2147483648 <= #t~ret51#1 && #t~ret51#1 <= 2147483647; [2025-02-08 13:53:13,734 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1014-2: havoc enqueue_#in~q#1.base, enqueue_#in~q#1.offset, enqueue_#in~x#1; [2025-02-08 13:53:13,734 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1014-3: havoc enqueue_#t~mem36#1, enqueue_#t~mem37#1, enqueue_#t~post38#1, enqueue_#t~mem39#1, enqueue_#t~mem40#1, enqueue_#t~post41#1, enqueue_~q#1.base, enqueue_~q#1.offset, enqueue_~x#1; [2025-02-08 13:53:13,734 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1014-4: #t~ret51#1 := enqueue_#res#1; [2025-02-08 13:53:13,734 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1015: #t~post52#1 := ~i~0#1; [2025-02-08 13:53:13,734 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1015-1: SUMMARY for call write~int#2(~value~0#1, ~#stored_elements~0.base, ~#stored_elements~0.offset + 4 * ~i~0#1, 4); srcloc: null [2025-02-08 13:53:13,735 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1011-1: havoc #t~post52#1; [2025-02-08 13:53:13,735 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1011-2: assume 1 + #t~post52#1 <= 2147483647; [2025-02-08 13:53:13,735 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1011-2: assume !(1 + #t~post52#1 <= 2147483647); [2025-02-08 13:53:13,735 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1011-3: ~i~0#1 := 1 + #t~post52#1; [2025-02-08 13:53:13,735 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1011-4: assume 1 + #t~post52#1 >= -2147483648; [2025-02-08 13:53:13,735 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1011-4: assume !(1 + #t~post52#1 >= -2147483648); [2025-02-08 13:53:13,824 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1002: SUMMARY for call write~int#3(1 + dequeue_#t~post48#1, dequeue_~q#1.base, 80 + dequeue_~q#1.offset, 4); srcloc: null [2025-02-08 13:53:13,824 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1002-1: assume 1 + dequeue_#t~post48#1 <= 2147483647; [2025-02-08 13:53:13,824 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1002-1: assume !(1 + dequeue_#t~post48#1 <= 2147483647); [2025-02-08 13:53:13,824 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1002-2: assume 1 + dequeue_#t~post48#1 >= -2147483648; [2025-02-08 13:53:13,825 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1002-2: assume !(1 + dequeue_#t~post48#1 >= -2147483648); [2025-02-08 13:53:13,825 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1002-3: dequeue_#t~post48#1 := dequeue_#t~mem47#1; [2025-02-08 13:53:13,825 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1002-4: SUMMARY for call dequeue_#t~mem47#1 := read~int#3(dequeue_~q#1.base, 80 + dequeue_~q#1.offset, 4); srcloc: null [2025-02-08 13:53:13,825 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L994: havoc dequeue_~x~0#1; [2025-02-08 13:53:13,825 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1003-1: dequeue_#res#1 := dequeue_~x~0#1; [2025-02-08 13:53:13,825 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L995: havoc dequeue_#t~mem43#1; [2025-02-08 13:53:13,826 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L995-1: havoc dequeue_#t~mem42#1; [2025-02-08 13:53:13,826 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L995-2: dequeue_~x~0#1 := dequeue_#t~mem43#1; [2025-02-08 13:53:13,826 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L995-3: SUMMARY for call dequeue_#t~mem43#1 := read~int#3(dequeue_~q#1.base, dequeue_~q#1.offset + 4 * dequeue_#t~mem42#1, 4); srcloc: null [2025-02-08 13:53:13,826 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L995-4: SUMMARY for call dequeue_#t~mem42#1 := read~int#3(dequeue_~q#1.base, 80 + dequeue_~q#1.offset, 4); srcloc: null [2025-02-08 13:53:13,826 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L21: assume false; [2025-02-08 13:53:13,827 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L21: assume !false; [2025-02-08 13:53:13,827 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L21-1: assume false; [2025-02-08 13:53:13,827 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1029-1: havoc #t~post58#1; [2025-02-08 13:53:13,827 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L996: havoc dequeue_#t~post45#1; [2025-02-08 13:53:13,827 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1029-2: assume 1 + #t~post58#1 <= 2147483647; [2025-02-08 13:53:13,827 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1029-2: assume !(1 + #t~post58#1 <= 2147483647); [2025-02-08 13:53:13,827 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L996-1: havoc dequeue_#t~mem44#1; [2025-02-08 13:53:13,827 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1029-3: ~i~1#1 := 1 + #t~post58#1; [2025-02-08 13:53:13,827 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L996-2: SUMMARY for call write~int#3(dequeue_#t~post45#1 - 1, dequeue_~q#1.base, 88 + dequeue_~q#1.offset, 4); srcloc: null [2025-02-08 13:53:13,827 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1029-4: assume 1 + #t~post58#1 >= -2147483648; [2025-02-08 13:53:13,828 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1029-4: assume !(1 + #t~post58#1 >= -2147483648); [2025-02-08 13:53:13,828 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L996-3: assume dequeue_#t~post45#1 - 1 <= 2147483647; [2025-02-08 13:53:13,828 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L996-3: assume !(dequeue_#t~post45#1 - 1 <= 2147483647); [2025-02-08 13:53:13,828 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1029-5: #t~post58#1 := ~i~1#1; [2025-02-08 13:53:13,828 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L996-4: assume dequeue_#t~post45#1 - 1 >= -2147483648; [2025-02-08 13:53:13,828 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L996-4: assume !(dequeue_#t~post45#1 - 1 >= -2147483648); [2025-02-08 13:53:13,828 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L996-5: dequeue_#t~post45#1 := dequeue_#t~mem44#1; [2025-02-08 13:53:13,828 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L996-6: SUMMARY for call dequeue_#t~mem44#1 := read~int#3(dequeue_~q#1.base, 88 + dequeue_~q#1.offset, 4); srcloc: null [2025-02-08 13:53:13,828 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L997: assume 20 == dequeue_#t~mem46#1; [2025-02-08 13:53:13,828 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L997: assume !(20 == dequeue_#t~mem46#1); [2025-02-08 13:53:13,828 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L997-1: havoc dequeue_#t~mem46#1; [2025-02-08 13:53:13,828 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L997-2: havoc dequeue_#t~mem46#1; [2025-02-08 13:53:13,828 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L997-3: SUMMARY for call dequeue_#t~mem46#1 := read~int#3(dequeue_~q#1.base, 80 + dequeue_~q#1.offset, 4); srcloc: null [2025-02-08 13:53:13,828 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1031: assume -1 != #t~ret55#1; [2025-02-08 13:53:13,828 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1031: assume !(-1 != #t~ret55#1); [2025-02-08 13:53:13,828 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1031-1: havoc #t~ret55#1; [2025-02-08 13:53:13,828 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1031-2: havoc #t~ret55#1; [2025-02-08 13:53:13,828 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1031-3: assume { :end_inline_empty } true;assume -2147483648 <= #t~ret55#1 && #t~ret55#1 <= 2147483647; [2025-02-08 13:53:13,828 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1031-4: havoc empty_#in~q#1.base, empty_#in~q#1.offset; [2025-02-08 13:53:13,828 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1031-5: havoc empty_#t~mem31#1, empty_#t~mem32#1, empty_#t~ret33#1, empty_~q#1.base, empty_~q#1.offset; [2025-02-08 13:53:13,829 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1031-6: #t~ret55#1 := empty_#res#1; [2025-02-08 13:53:13,829 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1032: havoc #t~mem57#1; [2025-02-08 13:53:13,829 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1032-1: havoc #t~mem57#1; [2025-02-08 13:53:13,829 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L999: SUMMARY for call write~int#3(1, dequeue_~q#1.base, 80 + dequeue_~q#1.offset, 4); srcloc: null [2025-02-08 13:53:13,829 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1032-2: assume (if 0 == #t~ret56#1 then 1 else 0) == #t~mem57#1; [2025-02-08 13:53:13,829 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1032-2: assume !((if 0 == #t~ret56#1 then 1 else 0) == #t~mem57#1); [2025-02-08 13:53:13,829 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1032-3: havoc #t~ret56#1; [2025-02-08 13:53:13,829 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1032-4: havoc #t~ret56#1; [2025-02-08 13:53:13,829 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1032-5: SUMMARY for call #t~mem57#1 := read~int#2(~#stored_elements~0.base, ~#stored_elements~0.offset + 4 * ~i~1#1, 4); srcloc: null [2025-02-08 13:53:13,829 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1032-6: assume { :end_inline_dequeue } true;assume -2147483648 <= #t~ret56#1 && #t~ret56#1 <= 2147483647; [2025-02-08 13:53:13,829 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1032-7: havoc dequeue_#in~q#1.base, dequeue_#in~q#1.offset; [2025-02-08 13:53:13,829 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1032-8: havoc dequeue_#t~mem42#1, dequeue_#t~mem43#1, dequeue_#t~mem44#1, dequeue_#t~post45#1, dequeue_#t~mem46#1, dequeue_#t~mem47#1, dequeue_#t~post48#1, dequeue_~q#1.base, dequeue_~q#1.offset, dequeue_~x~0#1; [2025-02-08 13:53:13,829 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1032-9: #t~ret56#1 := dequeue_#res#1; [2025-02-08 13:53:13,829 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1032-10: havoc dequeue_#t~mem42#1, dequeue_#t~mem43#1, dequeue_#t~mem44#1, dequeue_#t~post45#1, dequeue_#t~mem46#1, dequeue_#t~mem47#1, dequeue_#t~post48#1, dequeue_~q#1.base, dequeue_~q#1.offset, dequeue_~x~0#1; [2025-02-08 13:53:13,829 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1032-11: havoc dequeue_#res#1; [2025-02-08 13:53:13,829 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1032-12: assume { :begin_inline_dequeue } true;dequeue_#in~q#1.base, dequeue_#in~q#1.offset := ~#queue~0.base, ~#queue~0.offset; [2025-02-08 13:53:13,831 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1033: assume { :end_inline_reach_error } true;assume false; [2025-02-08 13:53:13,831 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1033-1: havoc reach_error_#t~nondet0#1.base, reach_error_#t~nondet0#1.offset; [2025-02-08 13:53:13,831 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1033-2: assume { :begin_inline_reach_error } true;havoc reach_error_#t~nondet0#1.base, reach_error_#t~nondet0#1.offset; [2025-02-08 13:53:13,832 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L992: dequeue_~q#1.base, dequeue_~q#1.offset := dequeue_#in~q#1.base, dequeue_#in~q#1.offset; [2025-02-08 13:53:13,833 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-08 13:53:13,833 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 13:53:14,061 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 13:53:14,062 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 13:53:14,062 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 01:53:14 BoogieIcfgContainer [2025-02-08 13:53:14,062 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 13:53:14,064 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 13:53:14,065 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 13:53:14,068 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 13:53:14,069 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 01:53:12" (1/3) ... [2025-02-08 13:53:14,069 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5416aaaa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 01:53:14, skipping insertion in model container [2025-02-08 13:53:14,069 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:53:13" (2/3) ... [2025-02-08 13:53:14,070 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5416aaaa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 01:53:14, skipping insertion in model container [2025-02-08 13:53:14,070 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 01:53:14" (3/3) ... [2025-02-08 13:53:14,071 INFO L128 eAbstractionObserver]: Analyzing ICFG queue_ok.i [2025-02-08 13:53:14,082 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 13:53:14,084 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG queue_ok.i that has 3 procedures, 31 locations, 1 initial locations, 2 loop locations, and 12 error locations. [2025-02-08 13:53:14,084 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-08 13:53:14,100 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.IIcfgForkTransitionThreadCurrent.getNameOfForkedProcedure()" because "" is null at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.ThreadInstanceAdder.constructThreadInstances(ThreadInstanceAdder.java:352) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.IcfgPetrifier.(IcfgPetrifier.java:94) 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 13:53:14,107 INFO L158 Benchmark]: Toolchain (without parser) took 1524.46ms. Allocated memory is still 167.8MB. Free memory was 122.6MB in the beginning and 96.3MB in the end (delta: 26.3MB). Peak memory consumption was 24.2MB. Max. memory is 16.1GB. [2025-02-08 13:53:14,108 INFO L158 Benchmark]: CDTParser took 1.21ms. Allocated memory is still 201.3MB. Free memory is still 116.7MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 13:53:14,108 INFO L158 Benchmark]: CACSL2BoogieTranslator took 573.15ms. Allocated memory is still 167.8MB. Free memory was 122.6MB in the beginning and 92.6MB in the end (delta: 30.0MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2025-02-08 13:53:14,109 INFO L158 Benchmark]: Boogie Procedure Inliner took 62.34ms. Allocated memory is still 167.8MB. Free memory was 92.6MB in the beginning and 89.0MB in the end (delta: 3.6MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 13:53:14,109 INFO L158 Benchmark]: Boogie Preprocessor took 47.38ms. Allocated memory is still 167.8MB. Free memory was 89.0MB in the beginning and 87.1MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 13:53:14,109 INFO L158 Benchmark]: IcfgBuilder took 794.49ms. Allocated memory is still 167.8MB. Free memory was 87.1MB in the beginning and 102.0MB in the end (delta: -14.8MB). Peak memory consumption was 66.1MB. Max. memory is 16.1GB. [2025-02-08 13:53:14,110 INFO L158 Benchmark]: TraceAbstraction took 41.85ms. Allocated memory is still 167.8MB. Free memory was 102.0MB in the beginning and 96.3MB in the end (delta: 5.6MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 13:53:14,114 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.21ms. Allocated memory is still 201.3MB. Free memory is still 116.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 573.15ms. Allocated memory is still 167.8MB. Free memory was 122.6MB in the beginning and 92.6MB in the end (delta: 30.0MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 62.34ms. Allocated memory is still 167.8MB. Free memory was 92.6MB in the beginning and 89.0MB in the end (delta: 3.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 47.38ms. Allocated memory is still 167.8MB. Free memory was 89.0MB in the beginning and 87.1MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 794.49ms. Allocated memory is still 167.8MB. Free memory was 87.1MB in the beginning and 102.0MB in the end (delta: -14.8MB). Peak memory consumption was 66.1MB. Max. memory is 16.1GB. * TraceAbstraction took 41.85ms. Allocated memory is still 167.8MB. Free memory was 102.0MB in the beginning and 96.3MB in the end (delta: 5.6MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: NullPointerException: Cannot invoke "de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.structure.IIcfgForkTransitionThreadCurrent.getNameOfForkedProcedure()" because "" is null de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: NullPointerException: Cannot invoke "de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.structure.IIcfgForkTransitionThreadCurrent.getNameOfForkedProcedure()" because "" is null: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.ThreadInstanceAdder.constructThreadInstances(ThreadInstanceAdder.java:352) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2025-02-08 13:53:14,130 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/queue_ok.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-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 ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7cc273f13a619f37768d5108c297b75ab7c37145fe391daced9c134730721251 --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 13:53:16,290 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 13:53:16,387 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Bitvector.epf [2025-02-08 13:53:16,392 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 13:53:16,393 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 13:53:16,412 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 13:53:16,413 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 13:53:16,413 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 13:53:16,413 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 13:53:16,413 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 13:53:16,413 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 13:53:16,414 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 13:53:16,414 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 13:53:16,414 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 13:53:16,414 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 13:53:16,414 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 13:53:16,414 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-08 13:53:16,415 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 13:53:16,415 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 13:53:16,415 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 13:53:16,415 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-08 13:53:16,415 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 13:53:16,417 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-08 13:53:16,418 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-08 13:53:16,418 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-02-08 13:53:16,418 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-02-08 13:53:16,418 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-02-08 13:53:16,418 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 13:53:16,418 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 13:53:16,418 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 13:53:16,418 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 13:53:16,418 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 13:53:16,418 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 13:53:16,418 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 13:53:16,419 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 13:53:16,419 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 13:53:16,419 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 13:53:16,419 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 13:53:16,419 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 13:53:16,419 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-08 13:53:16,419 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-08 13:53:16,419 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-02-08 13:53:16,419 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-02-08 13:53:16,419 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 13:53:16,419 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 13:53:16,419 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 13:53:16,419 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 13:53:16,419 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 ! overflow) ) 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 -> 7cc273f13a619f37768d5108c297b75ab7c37145fe391daced9c134730721251 [2025-02-08 13:53:16,714 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 13:53:16,721 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 13:53:16,723 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 13:53:16,724 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 13:53:16,726 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 13:53:16,727 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread/queue_ok.i [2025-02-08 13:53:18,059 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/6f2da812c/56bb8af01dda4bea8ebf929e2f5ec134/FLAGf5f63dd49 [2025-02-08 13:53:18,305 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 13:53:18,305 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread/queue_ok.i [2025-02-08 13:53:18,330 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/6f2da812c/56bb8af01dda4bea8ebf929e2f5ec134/FLAGf5f63dd49 [2025-02-08 13:53:18,346 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/6f2da812c/56bb8af01dda4bea8ebf929e2f5ec134 [2025-02-08 13:53:18,348 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 13:53:18,349 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 13:53:18,350 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 13:53:18,350 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 13:53:18,353 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 13:53:18,354 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 01:53:18" (1/1) ... [2025-02-08 13:53:18,355 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ed583c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:53:18, skipping insertion in model container [2025-02-08 13:53:18,355 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 01:53:18" (1/1) ... [2025-02-08 13:53:18,399 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 13:53:18,794 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 13:53:18,812 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 13:53:18,878 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 13:53:18,956 INFO L204 MainTranslator]: Completed translation [2025-02-08 13:53:18,957 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:53:18 WrapperNode [2025-02-08 13:53:18,957 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 13:53:18,958 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 13:53:18,958 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 13:53:18,959 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 13:53:18,964 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:53:18" (1/1) ... [2025-02-08 13:53:18,989 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:53:18" (1/1) ... [2025-02-08 13:53:19,027 INFO L138 Inliner]: procedures = 278, calls = 94, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 243 [2025-02-08 13:53:19,027 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 13:53:19,028 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 13:53:19,030 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 13:53:19,031 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 13:53:19,039 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:53:18" (1/1) ... [2025-02-08 13:53:19,040 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:53:18" (1/1) ... [2025-02-08 13:53:19,045 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:53:18" (1/1) ... [2025-02-08 13:53:19,070 INFO L175 MemorySlicer]: Split 75 memory accesses to 4 slices as follows [46, 2, 5, 22]. 61 percent of accesses are in the largest equivalence class. The 50 initializations are split as follows [23, 2, 5, 20]. The 11 writes are split as follows [10, 0, 0, 1]. [2025-02-08 13:53:19,070 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:53:18" (1/1) ... [2025-02-08 13:53:19,071 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:53:18" (1/1) ... [2025-02-08 13:53:19,089 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:53:18" (1/1) ... [2025-02-08 13:53:19,094 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:53:18" (1/1) ... [2025-02-08 13:53:19,097 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:53:18" (1/1) ... [2025-02-08 13:53:19,098 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:53:18" (1/1) ... [2025-02-08 13:53:19,103 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 13:53:19,107 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 13:53:19,107 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 13:53:19,107 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 13:53:19,108 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:53:18" (1/1) ... [2025-02-08 13:53:19,117 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 13:53:19,135 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 13:53:19,150 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 13:53:19,154 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 13:53:19,178 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2025-02-08 13:53:19,178 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2025-02-08 13:53:19,178 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2025-02-08 13:53:19,178 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2025-02-08 13:53:19,178 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2025-02-08 13:53:19,178 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2025-02-08 13:53:19,178 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2025-02-08 13:53:19,179 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2025-02-08 13:53:19,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2025-02-08 13:53:19,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2025-02-08 13:53:19,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2025-02-08 13:53:19,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2025-02-08 13:53:19,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-02-08 13:53:19,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2025-02-08 13:53:19,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2025-02-08 13:53:19,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2025-02-08 13:53:19,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#0 [2025-02-08 13:53:19,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#1 [2025-02-08 13:53:19,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#2 [2025-02-08 13:53:19,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#3 [2025-02-08 13:53:19,179 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-02-08 13:53:19,179 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-02-08 13:53:19,179 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 13:53:19,180 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 13:53:19,180 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 13:53:19,181 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 13:53:19,332 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 13:53:19,334 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 13:53:19,611 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1051: #pthreadsMutex := #pthreadsMutex[~#m~0.base,~#m~0.offset := 0bv1]; [2025-02-08 13:53:19,611 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2025-02-08 13:53:19,611 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1052: havoc main_#t~nondet62#1; [2025-02-08 13:53:19,611 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1052-1: havoc main_#t~pre61#1; [2025-02-08 13:53:19,612 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1052-2: fork main_#t~pre61#1, 0bv32 t1(~#queue~0.base, ~#queue~0.offset); [2025-02-08 13:53:19,612 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1052-3: main_~id1~0#1 := main_#t~pre61#1; [2025-02-08 13:53:19,612 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1052-4: #pthreadsForks := ~bvadd~32(1bv32, #pthreadsForks); [2025-02-08 13:53:19,612 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1052-5: main_#t~pre61#1 := #pthreadsForks; [2025-02-08 13:53:19,612 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1053: havoc main_#t~nondet64#1; [2025-02-08 13:53:19,612 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1053-1: havoc main_#t~pre63#1; [2025-02-08 13:53:19,612 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1053-2: fork main_#t~pre63#1, 0bv32, 0bv32 t2(~#queue~0.base, ~#queue~0.offset); [2025-02-08 13:53:19,612 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1053-3: main_~id2~0#1 := main_#t~pre63#1; [2025-02-08 13:53:19,612 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1053-4: #pthreadsForks := ~bvadd~32(1bv32, #pthreadsForks); [2025-02-08 13:53:19,612 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1053-5: main_#t~pre63#1 := #pthreadsForks; [2025-02-08 13:53:19,613 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L21: assume false; [2025-02-08 13:53:19,613 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L21: assume !false; [2025-02-08 13:53:19,613 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L21-1: assume false; [2025-02-08 13:53:19,613 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1054: join main_~id1~0#1, 0bv32; [2025-02-08 13:53:19,613 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1055: join main_~id2~0#1, 0bv32, 0bv32; [2025-02-08 13:53:19,613 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1056: main_#res#1 := 0bv32; [2025-02-08 13:53:19,613 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L-1: havoc main_#t~ret60#1, main_#t~pre61#1, main_#t~nondet62#1, main_#t~pre63#1, main_#t~nondet64#1, main_~id1~0#1, main_~id2~0#1;assume { :end_inline_main } true; [2025-02-08 13:53:19,613 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L-1-1: #t~ret65#1 := main_#res#1; [2025-02-08 13:53:19,613 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1048: assume 4294967295bv32 == (if 0bv32 == main_#t~ret60#1 then 1bv32 else 0bv32); [2025-02-08 13:53:19,613 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1048: assume !(4294967295bv32 == (if 0bv32 == main_#t~ret60#1 then 1bv32 else 0bv32)); [2025-02-08 13:53:19,614 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1048-1: havoc main_#t~ret60#1; [2025-02-08 13:53:19,614 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1048-2: havoc main_#t~ret60#1; [2025-02-08 13:53:19,614 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1048-3: havoc empty_#in~q#1.base, empty_#in~q#1.offset;assume { :end_inline_empty } true; [2025-02-08 13:53:19,614 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1048-4: havoc empty_#t~mem31#1, empty_#t~mem32#1, empty_#t~ret33#1, empty_~q#1.base, empty_~q#1.offset; [2025-02-08 13:53:19,614 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1048-5: main_#t~ret60#1 := empty_#res#1; [2025-02-08 13:53:19,614 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1049: assume { :end_inline_reach_error } true;assume false; [2025-02-08 13:53:19,614 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1049-1: havoc reach_error_#t~nondet0#1.base, reach_error_#t~nondet0#1.offset; [2025-02-08 13:53:19,614 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1049-2: assume { :begin_inline_reach_error } true;havoc reach_error_#t~nondet0#1.base, reach_error_#t~nondet0#1.offset; [2025-02-08 13:53:19,709 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1014: assume { :end_inline_enqueue } true;havoc #t~ret51#1; [2025-02-08 13:53:19,709 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1014-1: havoc enqueue_#in~q#1.base, enqueue_#in~q#1.offset, enqueue_#in~x#1; [2025-02-08 13:53:19,709 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1014-2: havoc enqueue_#t~mem36#1, enqueue_#t~mem37#1, enqueue_#t~post38#1, enqueue_#t~mem39#1, enqueue_#t~mem40#1, enqueue_#t~post41#1, enqueue_~q#1.base, enqueue_~q#1.offset, enqueue_~x#1; [2025-02-08 13:53:19,709 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1014-3: #t~ret51#1 := enqueue_#res#1; [2025-02-08 13:53:19,709 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1015: #t~post52#1 := ~i~0#1; [2025-02-08 13:53:19,710 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1015-1: SUMMARY for call write~intINTTYPE4#3(~value~0#1, ~#stored_elements~0.base, ~bvadd~32(~#stored_elements~0.offset, ~bvmul~32(4bv32, ~i~0#1)), 4bv32); srcloc: null [2025-02-08 13:53:19,710 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1011-1: havoc #t~post52#1; [2025-02-08 13:53:19,710 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1011-2: assume ~bvsle~33(~bvadd~33(1bv33, ~sign_extend~33~32(#t~post52#1)), 2147483647bv33); [2025-02-08 13:53:19,710 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1011-2: assume !~bvsle~33(~bvadd~33(1bv33, ~sign_extend~33~32(#t~post52#1)), 2147483647bv33); [2025-02-08 13:53:19,710 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1011-3: ~i~0#1 := ~bvadd~32(1bv32, #t~post52#1); [2025-02-08 13:53:19,710 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1011-4: assume ~bvsle~33(6442450944bv33, ~bvadd~33(1bv33, ~sign_extend~33~32(#t~post52#1))); [2025-02-08 13:53:19,710 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1011-4: assume !~bvsle~33(6442450944bv33, ~bvadd~33(1bv33, ~sign_extend~33~32(#t~post52#1))); [2025-02-08 13:53:19,807 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1002: SUMMARY for call write~intINTTYPE4#0(~bvadd~32(1bv32, dequeue_#t~post48#1), dequeue_~q#1.base, ~bvadd~32(80bv32, dequeue_~q#1.offset), 4bv32); srcloc: null [2025-02-08 13:53:19,807 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1002-1: assume ~bvsle~33(~bvadd~33(1bv33, ~sign_extend~33~32(dequeue_#t~post48#1)), 2147483647bv33); [2025-02-08 13:53:19,807 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1002-1: assume !~bvsle~33(~bvadd~33(1bv33, ~sign_extend~33~32(dequeue_#t~post48#1)), 2147483647bv33); [2025-02-08 13:53:19,807 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1002-2: assume ~bvsle~33(6442450944bv33, ~bvadd~33(1bv33, ~sign_extend~33~32(dequeue_#t~post48#1))); [2025-02-08 13:53:19,807 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1002-2: assume !~bvsle~33(6442450944bv33, ~bvadd~33(1bv33, ~sign_extend~33~32(dequeue_#t~post48#1))); [2025-02-08 13:53:19,807 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1002-3: dequeue_#t~post48#1 := dequeue_#t~mem47#1; [2025-02-08 13:53:19,807 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1002-4: SUMMARY for call dequeue_#t~mem47#1 := read~intINTTYPE4#0(dequeue_~q#1.base, ~bvadd~32(80bv32, dequeue_~q#1.offset), 4bv32); srcloc: null [2025-02-08 13:53:19,807 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L994: havoc dequeue_~x~0#1; [2025-02-08 13:53:19,808 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1003-1: dequeue_#res#1 := dequeue_~x~0#1; [2025-02-08 13:53:19,808 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L995: havoc dequeue_#t~mem43#1; [2025-02-08 13:53:19,808 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L995-1: havoc dequeue_#t~mem42#1; [2025-02-08 13:53:19,808 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L995-2: dequeue_~x~0#1 := dequeue_#t~mem43#1; [2025-02-08 13:53:19,808 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L995-3: SUMMARY for call dequeue_#t~mem43#1 := read~intINTTYPE4#0(dequeue_~q#1.base, ~bvadd~32(dequeue_~q#1.offset, ~bvmul~32(4bv32, dequeue_#t~mem42#1)), 4bv32); srcloc: null [2025-02-08 13:53:19,808 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L995-4: SUMMARY for call dequeue_#t~mem42#1 := read~intINTTYPE4#0(dequeue_~q#1.base, ~bvadd~32(80bv32, dequeue_~q#1.offset), 4bv32); srcloc: null [2025-02-08 13:53:19,808 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L21: assume false; [2025-02-08 13:53:19,808 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L21: assume !false; [2025-02-08 13:53:19,808 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L21-1: assume false; [2025-02-08 13:53:19,808 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1029-1: havoc #t~post58#1; [2025-02-08 13:53:19,808 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L996: havoc dequeue_#t~post45#1; [2025-02-08 13:53:19,808 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1029-2: assume ~bvsle~33(~bvadd~33(1bv33, ~sign_extend~33~32(#t~post58#1)), 2147483647bv33); [2025-02-08 13:53:19,808 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1029-2: assume !~bvsle~33(~bvadd~33(1bv33, ~sign_extend~33~32(#t~post58#1)), 2147483647bv33); [2025-02-08 13:53:19,808 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L996-1: havoc dequeue_#t~mem44#1; [2025-02-08 13:53:19,808 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1029-3: ~i~1#1 := ~bvadd~32(1bv32, #t~post58#1); [2025-02-08 13:53:19,808 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L996-2: SUMMARY for call write~intINTTYPE4#0(~bvsub~32(dequeue_#t~post45#1, 1bv32), dequeue_~q#1.base, ~bvadd~32(88bv32, dequeue_~q#1.offset), 4bv32); srcloc: null [2025-02-08 13:53:19,808 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1029-4: assume ~bvsle~33(6442450944bv33, ~bvadd~33(1bv33, ~sign_extend~33~32(#t~post58#1))); [2025-02-08 13:53:19,808 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1029-4: assume !~bvsle~33(6442450944bv33, ~bvadd~33(1bv33, ~sign_extend~33~32(#t~post58#1))); [2025-02-08 13:53:19,808 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L996-3: assume ~bvsle~33(~bvsub~33(~sign_extend~33~32(dequeue_#t~post45#1), 1bv33), 2147483647bv33); [2025-02-08 13:53:19,809 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L996-3: assume !~bvsle~33(~bvsub~33(~sign_extend~33~32(dequeue_#t~post45#1), 1bv33), 2147483647bv33); [2025-02-08 13:53:19,809 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1029-5: #t~post58#1 := ~i~1#1; [2025-02-08 13:53:19,809 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L996-4: assume ~bvsle~33(6442450944bv33, ~bvsub~33(~sign_extend~33~32(dequeue_#t~post45#1), 1bv33)); [2025-02-08 13:53:19,809 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L996-4: assume !~bvsle~33(6442450944bv33, ~bvsub~33(~sign_extend~33~32(dequeue_#t~post45#1), 1bv33)); [2025-02-08 13:53:19,809 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L996-5: dequeue_#t~post45#1 := dequeue_#t~mem44#1; [2025-02-08 13:53:19,809 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L996-6: SUMMARY for call dequeue_#t~mem44#1 := read~intINTTYPE4#0(dequeue_~q#1.base, ~bvadd~32(88bv32, dequeue_~q#1.offset), 4bv32); srcloc: null [2025-02-08 13:53:19,809 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L997: assume 20bv32 == dequeue_#t~mem46#1; [2025-02-08 13:53:19,809 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L997: assume !(20bv32 == dequeue_#t~mem46#1); [2025-02-08 13:53:19,809 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L997-1: havoc dequeue_#t~mem46#1; [2025-02-08 13:53:19,809 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L997-2: havoc dequeue_#t~mem46#1; [2025-02-08 13:53:19,809 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L997-3: SUMMARY for call dequeue_#t~mem46#1 := read~intINTTYPE4#0(dequeue_~q#1.base, ~bvadd~32(80bv32, dequeue_~q#1.offset), 4bv32); srcloc: null [2025-02-08 13:53:19,809 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1031: assume 4294967295bv32 != #t~ret55#1; [2025-02-08 13:53:19,809 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1031: assume !(4294967295bv32 != #t~ret55#1); [2025-02-08 13:53:19,809 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1031-1: havoc #t~ret55#1; [2025-02-08 13:53:19,809 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1031-2: havoc #t~ret55#1; [2025-02-08 13:53:19,809 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1031-3: havoc empty_#in~q#1.base, empty_#in~q#1.offset;assume { :end_inline_empty } true; [2025-02-08 13:53:19,809 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1031-4: havoc empty_#t~mem31#1, empty_#t~mem32#1, empty_#t~ret33#1, empty_~q#1.base, empty_~q#1.offset; [2025-02-08 13:53:19,809 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1031-5: #t~ret55#1 := empty_#res#1; [2025-02-08 13:53:19,809 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1032: havoc #t~mem57#1; [2025-02-08 13:53:19,809 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1032-1: havoc #t~mem57#1; [2025-02-08 13:53:19,811 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L999: SUMMARY for call write~intINTTYPE4#0(1bv32, dequeue_~q#1.base, ~bvadd~32(80bv32, dequeue_~q#1.offset), 4bv32); srcloc: null [2025-02-08 13:53:19,811 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1032-2: assume (if 0bv32 == #t~ret56#1 then 1bv32 else 0bv32) == #t~mem57#1; [2025-02-08 13:53:19,811 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1032-2: assume !((if 0bv32 == #t~ret56#1 then 1bv32 else 0bv32) == #t~mem57#1); [2025-02-08 13:53:19,811 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1032-3: havoc #t~ret56#1; [2025-02-08 13:53:19,811 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1032-4: havoc #t~ret56#1; [2025-02-08 13:53:19,811 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1032-5: SUMMARY for call #t~mem57#1 := read~intINTTYPE4#3(~#stored_elements~0.base, ~bvadd~32(~#stored_elements~0.offset, ~bvmul~32(4bv32, ~i~1#1)), 4bv32); srcloc: null [2025-02-08 13:53:19,811 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1032-6: havoc dequeue_#in~q#1.base, dequeue_#in~q#1.offset;assume { :end_inline_dequeue } true; [2025-02-08 13:53:19,811 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1032-7: havoc dequeue_#t~mem42#1, dequeue_#t~mem43#1, dequeue_#t~mem44#1, dequeue_#t~post45#1, dequeue_#t~mem46#1, dequeue_#t~mem47#1, dequeue_#t~post48#1, dequeue_~q#1.base, dequeue_~q#1.offset, dequeue_~x~0#1; [2025-02-08 13:53:19,811 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1032-8: #t~ret56#1 := dequeue_#res#1; [2025-02-08 13:53:19,811 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1032-9: havoc dequeue_#t~mem42#1, dequeue_#t~mem43#1, dequeue_#t~mem44#1, dequeue_#t~post45#1, dequeue_#t~mem46#1, dequeue_#t~mem47#1, dequeue_#t~post48#1, dequeue_~q#1.base, dequeue_~q#1.offset, dequeue_~x~0#1; [2025-02-08 13:53:19,811 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1032-10: havoc dequeue_#res#1; [2025-02-08 13:53:19,811 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1032-11: assume { :begin_inline_dequeue } true;dequeue_#in~q#1.base, dequeue_#in~q#1.offset := ~#queue~0.base, ~#queue~0.offset; [2025-02-08 13:53:19,812 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1033: assume { :end_inline_reach_error } true;assume false; [2025-02-08 13:53:19,813 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1033-1: havoc reach_error_#t~nondet0#1.base, reach_error_#t~nondet0#1.offset; [2025-02-08 13:53:19,813 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1033-2: assume { :begin_inline_reach_error } true;havoc reach_error_#t~nondet0#1.base, reach_error_#t~nondet0#1.offset; [2025-02-08 13:53:19,813 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L992: dequeue_~q#1.base, dequeue_~q#1.offset := dequeue_#in~q#1.base, dequeue_#in~q#1.offset; [2025-02-08 13:53:19,815 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-08 13:53:19,815 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 13:53:20,228 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 13:53:20,229 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 13:53:20,229 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 01:53:20 BoogieIcfgContainer [2025-02-08 13:53:20,229 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 13:53:20,232 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 13:53:20,233 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 13:53:20,237 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 13:53:20,237 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 01:53:18" (1/3) ... [2025-02-08 13:53:20,238 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55c6d35e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 01:53:20, skipping insertion in model container [2025-02-08 13:53:20,239 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:53:18" (2/3) ... [2025-02-08 13:53:20,239 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55c6d35e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 01:53:20, skipping insertion in model container [2025-02-08 13:53:20,239 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 01:53:20" (3/3) ... [2025-02-08 13:53:20,240 INFO L128 eAbstractionObserver]: Analyzing ICFG queue_ok.i [2025-02-08 13:53:20,253 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 13:53:20,255 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG queue_ok.i that has 3 procedures, 31 locations, 1 initial locations, 2 loop locations, and 12 error locations. [2025-02-08 13:53:20,256 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-08 13:53:20,278 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.IIcfgForkTransitionThreadCurrent.getNameOfForkedProcedure()" because "" is null at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.ThreadInstanceAdder.constructThreadInstances(ThreadInstanceAdder.java:352) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.IcfgPetrifier.(IcfgPetrifier.java:94) 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 13:53:20,286 INFO L158 Benchmark]: Toolchain (without parser) took 1937.06ms. Allocated memory is still 117.4MB. Free memory was 91.2MB in the beginning and 78.3MB in the end (delta: 13.0MB). Peak memory consumption was 17.1MB. Max. memory is 16.1GB. [2025-02-08 13:53:20,287 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 83.9MB. Free memory is still 62.2MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 13:53:20,287 INFO L158 Benchmark]: CACSL2BoogieTranslator took 607.46ms. Allocated memory is still 117.4MB. Free memory was 91.0MB in the beginning and 59.4MB in the end (delta: 31.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2025-02-08 13:53:20,289 INFO L158 Benchmark]: Boogie Procedure Inliner took 69.44ms. Allocated memory is still 117.4MB. Free memory was 59.4MB in the beginning and 56.4MB in the end (delta: 3.0MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 13:53:20,289 INFO L158 Benchmark]: Boogie Preprocessor took 78.35ms. Allocated memory is still 117.4MB. Free memory was 56.4MB in the beginning and 53.1MB in the end (delta: 3.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-08 13:53:20,290 INFO L158 Benchmark]: IcfgBuilder took 1122.55ms. Allocated memory is still 117.4MB. Free memory was 53.1MB in the beginning and 85.4MB in the end (delta: -32.3MB). Peak memory consumption was 30.9MB. Max. memory is 16.1GB. [2025-02-08 13:53:20,290 INFO L158 Benchmark]: TraceAbstraction took 52.62ms. Allocated memory is still 117.4MB. Free memory was 84.5MB in the beginning and 78.3MB in the end (delta: 6.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-08 13:53:20,292 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 83.9MB. Free memory is still 62.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 607.46ms. Allocated memory is still 117.4MB. Free memory was 91.0MB in the beginning and 59.4MB in the end (delta: 31.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 69.44ms. Allocated memory is still 117.4MB. Free memory was 59.4MB in the beginning and 56.4MB in the end (delta: 3.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 78.35ms. Allocated memory is still 117.4MB. Free memory was 56.4MB in the beginning and 53.1MB in the end (delta: 3.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * IcfgBuilder took 1122.55ms. Allocated memory is still 117.4MB. Free memory was 53.1MB in the beginning and 85.4MB in the end (delta: -32.3MB). Peak memory consumption was 30.9MB. Max. memory is 16.1GB. * TraceAbstraction took 52.62ms. Allocated memory is still 117.4MB. Free memory was 84.5MB in the beginning and 78.3MB in the end (delta: 6.3MB). 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.IIcfgForkTransitionThreadCurrent.getNameOfForkedProcedure()" because "" is null de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: NullPointerException: Cannot invoke "de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.structure.IIcfgForkTransitionThreadCurrent.getNameOfForkedProcedure()" because "" is null: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.ThreadInstanceAdder.constructThreadInstances(ThreadInstanceAdder.java:352) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2025-02-08 13:53:20,306 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.IIcfgForkTransitionThreadCurrent.getNameOfForkedProcedure()" because "" is null