./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/goblint-regression/04-mutex_28-base_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 551b0097 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/goblint-regression/04-mutex_28-base_nr.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash eb813251a5a569259b8af082f5101234fab9c5e6c11ee6373cceced0aa951de1 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-10 00:55:09,698 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-10 00:55:09,770 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2025-01-10 00:55:09,778 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-10 00:55:09,778 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-10 00:55:09,803 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-10 00:55:09,804 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-10 00:55:09,804 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-10 00:55:09,804 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-10 00:55:09,804 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-10 00:55:09,804 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-10 00:55:09,805 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-10 00:55:09,805 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-10 00:55:09,805 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-10 00:55:09,805 INFO L153 SettingsManager]: * Use SBE=true [2025-01-10 00:55:09,805 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-10 00:55:09,805 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-10 00:55:09,805 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-10 00:55:09,807 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-10 00:55:09,807 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-10 00:55:09,807 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-01-10 00:55:09,807 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-01-10 00:55:09,808 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-01-10 00:55:09,808 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-10 00:55:09,808 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-01-10 00:55:09,808 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-01-10 00:55:09,808 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-10 00:55:09,808 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-10 00:55:09,808 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-10 00:55:09,808 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-10 00:55:09,809 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-10 00:55:09,809 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-10 00:55:09,809 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-10 00:55:09,809 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 00:55:09,809 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-10 00:55:09,809 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-10 00:55:09,809 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-10 00:55:09,809 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-10 00:55:09,809 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 00:55:09,809 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-10 00:55:09,810 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-10 00:55:09,810 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-10 00:55:09,810 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-10 00:55:09,810 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-10 00:55:09,810 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-10 00:55:09,810 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-10 00:55:09,810 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-10 00:55:09,811 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> eb813251a5a569259b8af082f5101234fab9c5e6c11ee6373cceced0aa951de1 [2025-01-10 00:55:10,127 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-10 00:55:10,136 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-10 00:55:10,139 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-10 00:55:10,142 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-10 00:55:10,142 INFO L274 PluginConnector]: CDTParser initialized [2025-01-10 00:55:10,144 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/04-mutex_28-base_nr.i [2025-01-10 00:55:11,478 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/dd08d38f2/e032e1eb3f9246c788275d73d58d78c1/FLAG21afbd4b1 [2025-01-10 00:55:11,812 INFO L384 CDTParser]: Found 1 translation units. [2025-01-10 00:55:11,812 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/goblint-regression/04-mutex_28-base_nr.i [2025-01-10 00:55:11,843 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/dd08d38f2/e032e1eb3f9246c788275d73d58d78c1/FLAG21afbd4b1 [2025-01-10 00:55:11,863 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/dd08d38f2/e032e1eb3f9246c788275d73d58d78c1 [2025-01-10 00:55:11,867 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-10 00:55:11,868 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-10 00:55:11,870 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-10 00:55:11,870 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-10 00:55:11,878 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-10 00:55:11,879 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 12:55:11" (1/1) ... [2025-01-10 00:55:11,880 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f3466a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:55:11, skipping insertion in model container [2025-01-10 00:55:11,880 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 12:55:11" (1/1) ... [2025-01-10 00:55:11,920 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-10 00:55:12,264 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-10 00:55:12,287 INFO L200 MainTranslator]: Completed pre-run [2025-01-10 00:55:12,341 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-10 00:55:12,394 INFO L204 MainTranslator]: Completed translation [2025-01-10 00:55:12,394 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:55:12 WrapperNode [2025-01-10 00:55:12,395 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-10 00:55:12,396 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-10 00:55:12,396 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-10 00:55:12,396 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-10 00:55:12,403 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:55:12" (1/1) ... [2025-01-10 00:55:12,425 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:55:12" (1/1) ... [2025-01-10 00:55:12,448 INFO L138 Inliner]: procedures = 243, calls = 25, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 67 [2025-01-10 00:55:12,449 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-10 00:55:12,450 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-10 00:55:12,450 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-10 00:55:12,450 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-10 00:55:12,457 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:55:12" (1/1) ... [2025-01-10 00:55:12,458 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:55:12" (1/1) ... [2025-01-10 00:55:12,460 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:55:12" (1/1) ... [2025-01-10 00:55:12,476 INFO L175 MemorySlicer]: Split 10 memory accesses to 2 slices as follows [5, 5]. 50 percent of accesses are in the largest equivalence class. The 10 initializations are split as follows [5, 5]. The 0 writes are split as follows [0, 0]. [2025-01-10 00:55:12,478 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:55:12" (1/1) ... [2025-01-10 00:55:12,478 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:55:12" (1/1) ... [2025-01-10 00:55:12,483 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:55:12" (1/1) ... [2025-01-10 00:55:12,484 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:55:12" (1/1) ... [2025-01-10 00:55:12,486 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:55:12" (1/1) ... [2025-01-10 00:55:12,487 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:55:12" (1/1) ... [2025-01-10 00:55:12,490 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:55:12" (1/1) ... [2025-01-10 00:55:12,492 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-10 00:55:12,493 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-10 00:55:12,493 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-10 00:55:12,493 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-10 00:55:12,494 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:55:12" (1/1) ... [2025-01-10 00:55:12,502 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 00:55:12,513 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:55:12,529 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) [2025-01-10 00:55:12,532 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 [2025-01-10 00:55:12,553 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-01-10 00:55:12,554 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-01-10 00:55:12,554 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-10 00:55:12,554 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2025-01-10 00:55:12,554 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2025-01-10 00:55:12,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-10 00:55:12,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-01-10 00:55:12,554 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-10 00:55:12,554 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-10 00:55:12,555 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-01-10 00:55:12,680 INFO L234 CfgBuilder]: Building ICFG [2025-01-10 00:55:12,682 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-10 00:55:12,817 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-01-10 00:55:12,817 INFO L283 CfgBuilder]: Performing block encoding [2025-01-10 00:55:12,946 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-10 00:55:12,946 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-01-10 00:55:12,947 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 12:55:12 BoogieIcfgContainer [2025-01-10 00:55:12,947 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-10 00:55:12,949 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-10 00:55:12,949 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-10 00:55:12,953 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-10 00:55:12,954 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 12:55:11" (1/3) ... [2025-01-10 00:55:12,956 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41bae646 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 12:55:12, skipping insertion in model container [2025-01-10 00:55:12,956 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:55:12" (2/3) ... [2025-01-10 00:55:12,957 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41bae646 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 12:55:12, skipping insertion in model container [2025-01-10 00:55:12,957 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 12:55:12" (3/3) ... [2025-01-10 00:55:12,959 INFO L128 eAbstractionObserver]: Analyzing ICFG 04-mutex_28-base_nr.i [2025-01-10 00:55:12,971 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-10 00:55:12,972 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 04-mutex_28-base_nr.i that has 2 procedures, 24 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2025-01-10 00:55:12,973 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-01-10 00:55:13,006 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-01-10 00:55:13,038 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 27 places, 23 transitions, 50 flow [2025-01-10 00:55:13,071 INFO L124 PetriNetUnfolderBase]: 0/22 cut-off events. [2025-01-10 00:55:13,073 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-01-10 00:55:13,075 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26 conditions, 22 events. 0/22 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 18 event pairs, 0 based on Foata normal form. 0/21 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2025-01-10 00:55:13,075 INFO L82 GeneralOperation]: Start removeDead. Operand has 27 places, 23 transitions, 50 flow [2025-01-10 00:55:13,078 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 25 places, 21 transitions, 45 flow [2025-01-10 00:55:13,083 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-10 00:55:13,097 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=None, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@72178eb5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-10 00:55:13,098 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2025-01-10 00:55:13,108 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-01-10 00:55:13,109 INFO L124 PetriNetUnfolderBase]: 0/20 cut-off events. [2025-01-10 00:55:13,109 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-01-10 00:55:13,109 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 00:55:13,110 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 00:55:13,110 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-10 00:55:13,114 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:55:13,114 INFO L85 PathProgramCache]: Analyzing trace with hash 86483373, now seen corresponding path program 1 times [2025-01-10 00:55:13,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 00:55:13,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897786168] [2025-01-10 00:55:13,120 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:55:13,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 00:55:13,202 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-01-10 00:55:13,224 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-01-10 00:55:13,225 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:55:13,225 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:55:13,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:55:13,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 00:55:13,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897786168] [2025-01-10 00:55:13,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1897786168] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:55:13,404 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:55:13,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-01-10 00:55:13,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093832170] [2025-01-10 00:55:13,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:55:13,412 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-10 00:55:13,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 00:55:13,436 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-10 00:55:13,437 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-10 00:55:13,442 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 2 out of 23 [2025-01-10 00:55:13,445 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 21 transitions, 45 flow. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 00:55:13,446 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 00:55:13,446 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 2 of 23 [2025-01-10 00:55:13,447 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 00:55:13,538 INFO L124 PetriNetUnfolderBase]: 72/168 cut-off events. [2025-01-10 00:55:13,538 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-01-10 00:55:13,539 INFO L83 FinitePrefix]: Finished finitePrefix Result has 336 conditions, 168 events. 72/168 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 516 event pairs, 72 based on Foata normal form. 10/177 useless extension candidates. Maximal degree in co-relation 327. Up to 163 conditions per place. [2025-01-10 00:55:13,541 INFO L140 encePairwiseOnDemand]: 21/23 looper letters, 0 selfloop transitions, 0 changer transitions 20/20 dead transitions. [2025-01-10 00:55:13,541 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 20 transitions, 81 flow [2025-01-10 00:55:13,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-10 00:55:13,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-01-10 00:55:13,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 26 transitions. [2025-01-10 00:55:13,556 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.37681159420289856 [2025-01-10 00:55:13,557 INFO L175 Difference]: Start difference. First operand has 25 places, 21 transitions, 45 flow. Second operand 3 states and 26 transitions. [2025-01-10 00:55:13,557 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 20 transitions, 81 flow [2025-01-10 00:55:13,560 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 20 transitions, 80 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-01-10 00:55:13,561 INFO L231 Difference]: Finished difference. Result has 25 places, 0 transitions, 0 flow [2025-01-10 00:55:13,563 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=25, PETRI_TRANSITIONS=0} [2025-01-10 00:55:13,566 INFO L279 CegarLoopForPetriNet]: 25 programPoint places, 0 predicate places. [2025-01-10 00:55:13,566 INFO L471 AbstractCegarLoop]: Abstraction has has 25 places, 0 transitions, 0 flow [2025-01-10 00:55:13,567 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 00:55:13,569 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (1 of 2 remaining) [2025-01-10 00:55:13,569 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2025-01-10 00:55:13,570 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-10 00:55:13,570 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2025-01-10 00:55:13,573 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-01-10 00:55:13,573 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-01-10 00:55:13,577 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 12:55:13 BasicIcfg [2025-01-10 00:55:13,577 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-01-10 00:55:13,578 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-01-10 00:55:13,578 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-01-10 00:55:13,578 INFO L274 PluginConnector]: Witness Printer initialized [2025-01-10 00:55:13,579 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 12:55:12" (3/4) ... [2025-01-10 00:55:13,580 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-01-10 00:55:13,584 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2025-01-10 00:55:13,588 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 27 nodes and edges [2025-01-10 00:55:13,588 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2025-01-10 00:55:13,588 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-01-10 00:55:13,589 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-01-10 00:55:13,660 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-01-10 00:55:13,660 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-01-10 00:55:13,660 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-01-10 00:55:13,661 INFO L158 Benchmark]: Toolchain (without parser) took 1792.89ms. Allocated memory is still 142.6MB. Free memory was 110.4MB in the beginning and 91.0MB in the end (delta: 19.4MB). Peak memory consumption was 23.6MB. Max. memory is 16.1GB. [2025-01-10 00:55:13,661 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 201.3MB. Free memory is still 123.6MB. There was no memory consumed. Max. memory is 16.1GB. [2025-01-10 00:55:13,662 INFO L158 Benchmark]: CACSL2BoogieTranslator took 525.49ms. Allocated memory is still 142.6MB. Free memory was 109.9MB in the beginning and 84.3MB in the end (delta: 25.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-01-10 00:55:13,662 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.44ms. Allocated memory is still 142.6MB. Free memory was 84.3MB in the beginning and 82.8MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-10 00:55:13,662 INFO L158 Benchmark]: Boogie Preprocessor took 42.12ms. Allocated memory is still 142.6MB. Free memory was 82.8MB in the beginning and 80.8MB in the end (delta: 1.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-10 00:55:13,662 INFO L158 Benchmark]: RCFGBuilder took 454.63ms. Allocated memory is still 142.6MB. Free memory was 80.8MB in the beginning and 60.1MB in the end (delta: 20.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-01-10 00:55:13,663 INFO L158 Benchmark]: TraceAbstraction took 628.33ms. Allocated memory is still 142.6MB. Free memory was 59.6MB in the beginning and 96.3MB in the end (delta: -36.7MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-10 00:55:13,663 INFO L158 Benchmark]: Witness Printer took 82.58ms. Allocated memory is still 142.6MB. Free memory was 96.3MB in the beginning and 91.0MB in the end (delta: 5.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-10 00:55:13,664 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 201.3MB. Free memory is still 123.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 525.49ms. Allocated memory is still 142.6MB. Free memory was 109.9MB in the beginning and 84.3MB in the end (delta: 25.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 53.44ms. Allocated memory is still 142.6MB. Free memory was 84.3MB in the beginning and 82.8MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 42.12ms. Allocated memory is still 142.6MB. Free memory was 82.8MB in the beginning and 80.8MB in the end (delta: 1.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 454.63ms. Allocated memory is still 142.6MB. Free memory was 80.8MB in the beginning and 60.1MB in the end (delta: 20.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 628.33ms. Allocated memory is still 142.6MB. Free memory was 59.6MB in the beginning and 96.3MB in the end (delta: -36.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 82.58ms. Allocated memory is still 142.6MB. Free memory was 96.3MB in the beginning and 91.0MB in the end (delta: 5.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 892]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 35 locations, 2 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 10 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 9 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 20 IncrementalHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 0 mSDtfsCounter, 20 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=45occurred in iteration=0, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 12 NumberOfCodeBlocks, 12 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 33 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-01-10 00:55:13,679 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: TRUE