./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread/queue_ok_longest.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80e6e164-54f2-43a7-bda5-e8feb10f275f/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80e6e164-54f2-43a7-bda5-e8feb10f275f/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80e6e164-54f2-43a7-bda5-e8feb10f275f/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80e6e164-54f2-43a7-bda5-e8feb10f275f/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread/queue_ok_longest.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80e6e164-54f2-43a7-bda5-e8feb10f275f/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80e6e164-54f2-43a7-bda5-e8feb10f275f/bin/uautomizer-verify-aQ6SnzHsRB --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 0e9bc4a9a6dcd238ac18925269a0bd7c8c54c2dafb57744151e37b58cf6eab8d --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 04:08:21,373 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 04:08:21,479 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80e6e164-54f2-43a7-bda5-e8feb10f275f/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-28 04:08:21,486 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 04:08:21,487 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 04:08:21,533 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 04:08:21,534 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 04:08:21,535 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 04:08:21,535 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 04:08:21,535 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 04:08:21,536 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 04:08:21,536 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 04:08:21,536 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 04:08:21,536 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 04:08:21,537 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 04:08:21,537 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 04:08:21,537 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 04:08:21,537 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 04:08:21,537 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 04:08:21,537 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 04:08:21,537 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-28 04:08:21,537 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-28 04:08:21,538 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-28 04:08:21,538 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 04:08:21,538 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-28 04:08:21,538 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 04:08:21,540 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 04:08:21,540 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 04:08:21,541 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 04:08:21,541 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 04:08:21,541 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:08:21,541 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:08:21,541 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:08:21,541 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:08:21,541 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 04:08:21,541 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:08:21,542 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:08:21,542 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:08:21,542 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:08:21,542 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 04:08:21,542 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 04:08:21,542 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 04:08:21,542 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 04:08:21,542 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 04:08:21,542 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 04:08:21,543 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 04:08:21,543 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 04:08:21,543 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_80e6e164-54f2-43a7-bda5-e8feb10f275f/bin/uautomizer-verify-aQ6SnzHsRB 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 -> 0e9bc4a9a6dcd238ac18925269a0bd7c8c54c2dafb57744151e37b58cf6eab8d [2024-11-28 04:08:21,934 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 04:08:21,945 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 04:08:21,948 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 04:08:21,949 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 04:08:21,950 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 04:08:21,952 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80e6e164-54f2-43a7-bda5-e8feb10f275f/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/pthread/queue_ok_longest.i [2024-11-28 04:08:25,604 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80e6e164-54f2-43a7-bda5-e8feb10f275f/bin/uautomizer-verify-aQ6SnzHsRB/data/f288c6120/04ce69803a2b4693940c9e32180a92e5/FLAG4de7fc243 [2024-11-28 04:08:26,127 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 04:08:26,128 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80e6e164-54f2-43a7-bda5-e8feb10f275f/sv-benchmarks/c/pthread/queue_ok_longest.i [2024-11-28 04:08:26,150 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80e6e164-54f2-43a7-bda5-e8feb10f275f/bin/uautomizer-verify-aQ6SnzHsRB/data/f288c6120/04ce69803a2b4693940c9e32180a92e5/FLAG4de7fc243 [2024-11-28 04:08:26,170 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80e6e164-54f2-43a7-bda5-e8feb10f275f/bin/uautomizer-verify-aQ6SnzHsRB/data/f288c6120/04ce69803a2b4693940c9e32180a92e5 [2024-11-28 04:08:26,172 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 04:08:26,174 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 04:08:26,175 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 04:08:26,175 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 04:08:26,180 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 04:08:26,181 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:08:26" (1/1) ... [2024-11-28 04:08:26,182 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3fc816bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:08:26, skipping insertion in model container [2024-11-28 04:08:26,183 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:08:26" (1/1) ... [2024-11-28 04:08:26,245 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 04:08:26,812 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:08:26,892 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 04:08:26,996 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:08:27,233 INFO L204 MainTranslator]: Completed translation [2024-11-28 04:08:27,234 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:08:27 WrapperNode [2024-11-28 04:08:27,234 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 04:08:27,236 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 04:08:27,236 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 04:08:27,236 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 04:08:27,247 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:08:27" (1/1) ... [2024-11-28 04:08:27,313 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:08:27" (1/1) ... [2024-11-28 04:08:27,536 INFO L138 Inliner]: procedures = 274, calls = 1654, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 1799 [2024-11-28 04:08:27,536 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 04:08:27,540 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 04:08:27,540 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 04:08:27,540 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 04:08:27,552 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:08:27" (1/1) ... [2024-11-28 04:08:27,553 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:08:27" (1/1) ... [2024-11-28 04:08:27,577 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:08:27" (1/1) ... [2024-11-28 04:08:27,667 INFO L175 MemorySlicer]: Split 1635 memory accesses to 4 slices as follows [2, 5, 802, 826]. 51 percent of accesses are in the largest equivalence class. The 1610 initializations are split as follows [2, 5, 800, 803]. The 11 writes are split as follows [0, 0, 1, 10]. [2024-11-28 04:08:27,670 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:08:27" (1/1) ... [2024-11-28 04:08:27,671 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:08:27" (1/1) ... [2024-11-28 04:08:27,768 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:08:27" (1/1) ... [2024-11-28 04:08:27,772 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:08:27" (1/1) ... [2024-11-28 04:08:27,779 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:08:27" (1/1) ... [2024-11-28 04:08:27,796 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:08:27" (1/1) ... [2024-11-28 04:08:27,803 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:08:27" (1/1) ... [2024-11-28 04:08:27,825 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 04:08:27,828 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 04:08:27,828 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 04:08:27,829 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 04:08:27,830 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:08:27" (1/1) ... [2024-11-28 04:08:27,842 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:08:27,859 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80e6e164-54f2-43a7-bda5-e8feb10f275f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:08:27,879 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80e6e164-54f2-43a7-bda5-e8feb10f275f/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 04:08:27,886 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80e6e164-54f2-43a7-bda5-e8feb10f275f/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 04:08:27,915 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2024-11-28 04:08:27,915 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2024-11-28 04:08:27,916 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2024-11-28 04:08:27,916 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2024-11-28 04:08:27,916 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-28 04:08:27,916 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-28 04:08:27,916 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-28 04:08:27,917 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-28 04:08:27,917 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-28 04:08:27,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-28 04:08:27,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-28 04:08:27,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-28 04:08:27,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-28 04:08:27,918 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-28 04:08:27,918 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 04:08:27,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 04:08:27,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-28 04:08:27,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-28 04:08:27,919 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-28 04:08:27,919 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 04:08:27,919 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 04:08:27,922 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-28 04:08:28,178 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 04:08:28,180 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 04:08:31,525 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-28 04:08:31,525 INFO L283 CfgBuilder]: Performing block encoding