./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_84-list2_racing2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11853bc0-2ce5-4281-a01d-51273b39e5e2/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11853bc0-2ce5-4281-a01d-51273b39e5e2/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11853bc0-2ce5-4281-a01d-51273b39e5e2/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11853bc0-2ce5-4281-a01d-51273b39e5e2/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_84-list2_racing2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11853bc0-2ce5-4281-a01d-51273b39e5e2/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11853bc0-2ce5-4281-a01d-51273b39e5e2/bin/uautomizer-verify-LYvppIcaGC --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 f70125267ee7251a74a40ef1ba0ea3ced14d0fe45e7a9ea5a666e1eecab0c01c --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-23 23:47:59,883 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 23:47:59,981 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11853bc0-2ce5-4281-a01d-51273b39e5e2/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-23 23:47:59,989 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 23:47:59,989 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 23:48:00,019 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 23:48:00,020 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 23:48:00,020 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 23:48:00,020 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-23 23:48:00,020 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-23 23:48:00,021 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-23 23:48:00,021 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-23 23:48:00,021 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 23:48:00,021 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 23:48:00,022 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 23:48:00,022 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 23:48:00,022 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-23 23:48:00,022 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-23 23:48:00,022 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-23 23:48:00,022 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 23:48:00,023 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-23 23:48:00,023 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-23 23:48:00,023 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-23 23:48:00,023 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-23 23:48:00,023 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-23 23:48:00,023 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-23 23:48:00,023 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-23 23:48:00,023 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-23 23:48:00,023 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 23:48:00,023 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-23 23:48:00,023 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 23:48:00,024 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 23:48:00,024 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 23:48:00,024 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:48:00,025 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 23:48:00,025 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 23:48:00,025 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 23:48:00,025 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 23:48:00,025 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:48:00,026 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 23:48:00,026 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-23 23:48:00,026 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-23 23:48:00,026 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-23 23:48:00,026 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-23 23:48:00,027 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-23 23:48:00,027 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-23 23:48:00,027 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-23 23:48:00,027 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 -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11853bc0-2ce5-4281-a01d-51273b39e5e2/bin/uautomizer-verify-LYvppIcaGC 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 -> f70125267ee7251a74a40ef1ba0ea3ced14d0fe45e7a9ea5a666e1eecab0c01c [2024-11-23 23:48:00,318 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 23:48:00,327 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 23:48:00,329 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 23:48:00,330 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 23:48:00,331 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 23:48:00,332 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11853bc0-2ce5-4281-a01d-51273b39e5e2/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/goblint-regression/28-race_reach_84-list2_racing2.i [2024-11-23 23:48:03,300 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11853bc0-2ce5-4281-a01d-51273b39e5e2/bin/uautomizer-verify-LYvppIcaGC/data/f03edf313/1e8ef7e7697e4563983de15f8d6f4554/FLAGafc7a5074 [2024-11-23 23:48:03,691 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 23:48:03,692 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11853bc0-2ce5-4281-a01d-51273b39e5e2/sv-benchmarks/c/goblint-regression/28-race_reach_84-list2_racing2.i [2024-11-23 23:48:03,717 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11853bc0-2ce5-4281-a01d-51273b39e5e2/bin/uautomizer-verify-LYvppIcaGC/data/f03edf313/1e8ef7e7697e4563983de15f8d6f4554/FLAGafc7a5074 [2024-11-23 23:48:03,736 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11853bc0-2ce5-4281-a01d-51273b39e5e2/bin/uautomizer-verify-LYvppIcaGC/data/f03edf313/1e8ef7e7697e4563983de15f8d6f4554 [2024-11-23 23:48:03,739 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 23:48:03,740 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 23:48:03,741 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 23:48:03,742 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 23:48:03,749 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 23:48:03,750 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:48:03" (1/1) ... [2024-11-23 23:48:03,750 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52b185fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:48:03, skipping insertion in model container [2024-11-23 23:48:03,751 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:48:03" (1/1) ... [2024-11-23 23:48:03,786 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 23:48:04,327 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 23:48:04,377 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 23:48:04,444 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 23:48:04,512 INFO L204 MainTranslator]: Completed translation [2024-11-23 23:48:04,513 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:48:04 WrapperNode [2024-11-23 23:48:04,514 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 23:48:04,515 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 23:48:04,515 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 23:48:04,516 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 23:48:04,528 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:48:04" (1/1) ... [2024-11-23 23:48:04,557 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:48:04" (1/1) ... [2024-11-23 23:48:04,611 INFO L138 Inliner]: procedures = 280, calls = 99, calls flagged for inlining = 13, calls inlined = 14, statements flattened = 401 [2024-11-23 23:48:04,612 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 23:48:04,612 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 23:48:04,616 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 23:48:04,616 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 23:48:04,630 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:48:04" (1/1) ... [2024-11-23 23:48:04,630 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:48:04" (1/1) ... [2024-11-23 23:48:04,640 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:48:04" (1/1) ... [2024-11-23 23:48:04,692 INFO L175 MemorySlicer]: Split 56 memory accesses to 9 slices as follows [2, 5, 5, 5, 5, 2, 28, 2, 2]. 50 percent of accesses are in the largest equivalence class. The 22 initializations are split as follows [2, 5, 5, 5, 5, 0, 0, 0, 0]. The 17 writes are split as follows [0, 0, 0, 0, 0, 1, 14, 1, 1]. [2024-11-23 23:48:04,693 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:48:04" (1/1) ... [2024-11-23 23:48:04,693 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:48:04" (1/1) ... [2024-11-23 23:48:04,715 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:48:04" (1/1) ... [2024-11-23 23:48:04,717 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:48:04" (1/1) ... [2024-11-23 23:48:04,722 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:48:04" (1/1) ... [2024-11-23 23:48:04,729 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:48:04" (1/1) ... [2024-11-23 23:48:04,735 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:48:04" (1/1) ... [2024-11-23 23:48:04,748 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 23:48:04,749 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 23:48:04,749 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 23:48:04,749 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 23:48:04,750 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:48:04" (1/1) ... [2024-11-23 23:48:04,764 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:48:04,781 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11853bc0-2ce5-4281-a01d-51273b39e5e2/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:48:04,799 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11853bc0-2ce5-4281-a01d-51273b39e5e2/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-23 23:48:04,803 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11853bc0-2ce5-4281-a01d-51273b39e5e2/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-23 23:48:04,835 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-23 23:48:04,835 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-23 23:48:04,835 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-23 23:48:04,835 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-23 23:48:04,836 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-23 23:48:04,836 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-23 23:48:04,836 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-23 23:48:04,836 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-23 23:48:04,836 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-11-23 23:48:04,836 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2024-11-23 23:48:04,836 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2024-11-23 23:48:04,836 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2024-11-23 23:48:04,836 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-23 23:48:04,836 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-23 23:48:04,836 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-23 23:48:04,836 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-23 23:48:04,837 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-23 23:48:04,837 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-23 23:48:04,837 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-23 23:48:04,837 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-23 23:48:04,837 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-23 23:48:04,837 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-23 23:48:04,837 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-11-23 23:48:04,837 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2024-11-23 23:48:04,837 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2024-11-23 23:48:04,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-23 23:48:04,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-23 23:48:04,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-23 23:48:04,838 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-23 23:48:04,838 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-23 23:48:04,838 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-23 23:48:04,838 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-23 23:48:04,838 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-23 23:48:04,838 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-11-23 23:48:04,838 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-23 23:48:04,838 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-23 23:48:04,838 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-23 23:48:04,838 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-23 23:48:04,838 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-23 23:48:04,838 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-23 23:48:04,838 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-23 23:48:04,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-23 23:48:04,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-23 23:48:04,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-23 23:48:04,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-11-23 23:48:04,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2024-11-23 23:48:04,841 INFO L130 BoogieDeclarations]: Found specification of procedure t3_fun [2024-11-23 23:48:04,841 INFO L138 BoogieDeclarations]: Found implementation of procedure t3_fun [2024-11-23 23:48:04,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-23 23:48:04,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-23 23:48:04,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-23 23:48:04,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-23 23:48:04,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-23 23:48:04,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-23 23:48:04,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-23 23:48:04,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-23 23:48:04,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-23 23:48:04,842 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 23:48:04,842 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 23:48:04,844 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-23 23:48:05,127 INFO L234 CfgBuilder]: Building ICFG [2024-11-23 23:48:05,129 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 23:48:06,048 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-23 23:48:06,049 INFO L283 CfgBuilder]: Performing block encoding [2024-11-23 23:48:06,434 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 23:48:06,434 INFO L312 CfgBuilder]: Removed 19 assume(true) statements. [2024-11-23 23:48:06,435 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:48:06 BoogieIcfgContainer [2024-11-23 23:48:06,435 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 23:48:06,440 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-23 23:48:06,441 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-23 23:48:06,446 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-23 23:48:06,447 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 11:48:03" (1/3) ... [2024-11-23 23:48:06,447 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@521a89f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:48:06, skipping insertion in model container [2024-11-23 23:48:06,448 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:48:04" (2/3) ... [2024-11-23 23:48:06,448 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@521a89f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:48:06, skipping insertion in model container [2024-11-23 23:48:06,448 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:48:06" (3/3) ... [2024-11-23 23:48:06,450 INFO L128 eAbstractionObserver]: Analyzing ICFG 28-race_reach_84-list2_racing2.i [2024-11-23 23:48:06,469 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-23 23:48:06,471 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 28-race_reach_84-list2_racing2.i that has 4 procedures, 213 locations, 1 initial locations, 19 loop locations, and 71 error locations. [2024-11-23 23:48:06,471 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-23 23:48:06,651 INFO L143 ThreadInstanceAdder]: Constructed 9 joinOtherThreadTransitions. [2024-11-23 23:48:06,699 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 222 places, 256 transitions, 551 flow [2024-11-23 23:48:07,103 INFO L124 PetriNetUnfolderBase]: 142/957 cut-off events. [2024-11-23 23:48:07,108 INFO L125 PetriNetUnfolderBase]: For 36/36 co-relation queries the response was YES. [2024-11-23 23:48:07,132 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1011 conditions, 957 events. 142/957 cut-off events. For 36/36 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 7404 event pairs, 0 based on Foata normal form. 0/541 useless extension candidates. Maximal degree in co-relation 492. Up to 16 conditions per place. [2024-11-23 23:48:07,132 INFO L82 GeneralOperation]: Start removeDead. Operand has 222 places, 256 transitions, 551 flow [2024-11-23 23:48:07,155 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 222 places, 256 transitions, 551 flow [2024-11-23 23:48:07,167 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-23 23:48:07,185 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;@15c9c7ad, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 23:48:07,185 INFO L334 AbstractCegarLoop]: Starting to check reachability of 114 error locations. [2024-11-23 23:48:07,193 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-23 23:48:07,193 INFO L124 PetriNetUnfolderBase]: 0/2 cut-off events. [2024-11-23 23:48:07,193 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-23 23:48:07,193 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-23 23:48:07,194 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-11-23 23:48:07,194 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [t2_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t2_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t2_funErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 111 more)] === [2024-11-23 23:48:07,200 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:48:07,202 INFO L85 PathProgramCache]: Analyzing trace with hash 39747, now seen corresponding path program 1 times [2024-11-23 23:48:07,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:48:07,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553456334] [2024-11-23 23:48:07,211 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:48:07,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:48:07,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:48:07,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:48:07,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:48:07,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553456334] [2024-11-23 23:48:07,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [553456334] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:48:07,613 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:48:07,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-23 23:48:07,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851471938] [2024-11-23 23:48:07,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:48:07,623 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:48:07,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:48:07,655 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:48:07,656 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:48:07,828 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 256 [2024-11-23 23:48:07,832 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 222 places, 256 transitions, 551 flow. Second operand has 3 states, 3 states have (on average 116.66666666666667) internal successors, (350), 3 states have internal predecessors, (350), 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) [2024-11-23 23:48:07,832 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 23:48:07,833 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 256 [2024-11-23 23:48:07,835 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand