./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/goblint-regression/10-synch_01-thread_unique.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_6139f371-582b-44f6-98bd-26380562dce1/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6139f371-582b-44f6-98bd-26380562dce1/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6139f371-582b-44f6-98bd-26380562dce1/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6139f371-582b-44f6-98bd-26380562dce1/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/goblint-regression/10-synch_01-thread_unique.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6139f371-582b-44f6-98bd-26380562dce1/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6139f371-582b-44f6-98bd-26380562dce1/bin/uautomizer-verify-84ZbGMXZE1 --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 1f1f1c8f9ab1c230a124cee5d642a3f2063dd1bf51b20bdb3c19b17194d93f67 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 15:00:34,253 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 15:00:34,309 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6139f371-582b-44f6-98bd-26380562dce1/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-12-02 15:00:34,314 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 15:00:34,314 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 15:00:34,335 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 15:00:34,336 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 15:00:34,336 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 15:00:34,336 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 15:00:34,337 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 15:00:34,337 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 15:00:34,337 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 15:00:34,337 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 15:00:34,337 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 15:00:34,337 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 15:00:34,338 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 15:00:34,338 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 15:00:34,338 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 15:00:34,338 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 15:00:34,338 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 15:00:34,338 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-12-02 15:00:34,338 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-12-02 15:00:34,338 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-12-02 15:00:34,338 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 15:00:34,338 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-12-02 15:00:34,338 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-02 15:00:34,339 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 15:00:34,339 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 15:00:34,339 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 15:00:34,339 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 15:00:34,339 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 15:00:34,339 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 15:00:34,339 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 15:00:34,339 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 15:00:34,339 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 15:00:34,339 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 15:00:34,340 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 15:00:34,340 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 15:00:34,340 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 15:00:34,340 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 15:00:34,340 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 15:00:34,340 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 15:00:34,340 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 15:00:34,340 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 15:00:34,341 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 15:00:34,341 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 15:00:34,341 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 15:00:34,341 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_6139f371-582b-44f6-98bd-26380562dce1/bin/uautomizer-verify-84ZbGMXZE1 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 -> 1f1f1c8f9ab1c230a124cee5d642a3f2063dd1bf51b20bdb3c19b17194d93f67 [2024-12-02 15:00:34,541 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 15:00:34,548 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 15:00:34,549 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 15:00:34,550 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 15:00:34,550 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 15:00:34,551 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6139f371-582b-44f6-98bd-26380562dce1/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/goblint-regression/10-synch_01-thread_unique.i [2024-12-02 15:00:37,203 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6139f371-582b-44f6-98bd-26380562dce1/bin/uautomizer-verify-84ZbGMXZE1/data/d6444d70e/dfeb734e695846898b7695666ec35d9d/FLAGcb7abfea6 [2024-12-02 15:00:37,462 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 15:00:37,463 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6139f371-582b-44f6-98bd-26380562dce1/sv-benchmarks/c/goblint-regression/10-synch_01-thread_unique.i [2024-12-02 15:00:37,476 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6139f371-582b-44f6-98bd-26380562dce1/bin/uautomizer-verify-84ZbGMXZE1/data/d6444d70e/dfeb734e695846898b7695666ec35d9d/FLAGcb7abfea6 [2024-12-02 15:00:37,488 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6139f371-582b-44f6-98bd-26380562dce1/bin/uautomizer-verify-84ZbGMXZE1/data/d6444d70e/dfeb734e695846898b7695666ec35d9d [2024-12-02 15:00:37,490 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 15:00:37,491 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 15:00:37,492 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 15:00:37,493 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 15:00:37,496 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 15:00:37,496 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:00:37" (1/1) ... [2024-12-02 15:00:37,497 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3cae95be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:00:37, skipping insertion in model container [2024-12-02 15:00:37,497 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:00:37" (1/1) ... [2024-12-02 15:00:37,525 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 15:00:37,860 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 15:00:37,866 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 15:00:37,903 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 15:00:37,940 INFO L204 MainTranslator]: Completed translation [2024-12-02 15:00:37,941 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:00:37 WrapperNode [2024-12-02 15:00:37,941 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 15:00:37,942 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 15:00:37,942 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 15:00:37,942 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 15:00:37,947 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:00:37" (1/1) ... [2024-12-02 15:00:37,957 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:00:37" (1/1) ... [2024-12-02 15:00:37,970 INFO L138 Inliner]: procedures = 256, calls = 3, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 15 [2024-12-02 15:00:37,970 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 15:00:37,971 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 15:00:37,971 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 15:00:37,971 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 15:00:37,977 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:00:37" (1/1) ... [2024-12-02 15:00:37,977 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:00:37" (1/1) ... [2024-12-02 15:00:37,978 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:00:37" (1/1) ... [2024-12-02 15:00:37,984 INFO L175 MemorySlicer]: No memory access in input program. [2024-12-02 15:00:37,985 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:00:37" (1/1) ... [2024-12-02 15:00:37,985 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:00:37" (1/1) ... [2024-12-02 15:00:37,988 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:00:37" (1/1) ... [2024-12-02 15:00:37,989 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:00:37" (1/1) ... [2024-12-02 15:00:37,989 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:00:37" (1/1) ... [2024-12-02 15:00:37,990 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:00:37" (1/1) ... [2024-12-02 15:00:37,990 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:00:37" (1/1) ... [2024-12-02 15:00:37,991 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 15:00:37,992 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 15:00:37,992 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 15:00:37,992 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 15:00:37,993 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:00:37" (1/1) ... [2024-12-02 15:00:37,996 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 15:00:38,006 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6139f371-582b-44f6-98bd-26380562dce1/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:00:38,015 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6139f371-582b-44f6-98bd-26380562dce1/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 15:00:38,017 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6139f371-582b-44f6-98bd-26380562dce1/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 15:00:38,038 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-12-02 15:00:38,038 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-12-02 15:00:38,038 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 15:00:38,038 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 15:00:38,039 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-12-02 15:00:38,123 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 15:00:38,124 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 15:00:38,177 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-12-02 15:00:38,177 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 15:00:38,203 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 15:00:38,203 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-02 15:00:38,203 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:00:38 BoogieIcfgContainer [2024-12-02 15:00:38,203 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 15:00:38,205 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 15:00:38,205 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 15:00:38,210 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 15:00:38,210 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 03:00:37" (1/3) ... [2024-12-02 15:00:38,211 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a827f7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:00:38, skipping insertion in model container [2024-12-02 15:00:38,211 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:00:37" (2/3) ... [2024-12-02 15:00:38,211 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a827f7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:00:38, skipping insertion in model container [2024-12-02 15:00:38,211 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:00:38" (3/3) ... [2024-12-02 15:00:38,212 INFO L128 eAbstractionObserver]: Analyzing ICFG 10-synch_01-thread_unique.i [2024-12-02 15:00:38,228 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 15:00:38,229 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 10-synch_01-thread_unique.i that has 2 procedures, 10 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2024-12-02 15:00:38,230 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-12-02 15:00:38,265 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-12-02 15:00:38,295 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 13 places, 9 transitions, 25 flow [2024-12-02 15:00:38,315 INFO L124 PetriNetUnfolderBase]: 0/8 cut-off events. [2024-12-02 15:00:38,317 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-12-02 15:00:38,320 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13 conditions, 8 events. 0/8 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 2 event pairs, 0 based on Foata normal form. 0/7 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2024-12-02 15:00:38,320 INFO L82 GeneralOperation]: Start removeDead. Operand has 13 places, 9 transitions, 25 flow [2024-12-02 15:00:38,322 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 11 places, 7 transitions, 20 flow [2024-12-02 15:00:38,330 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 15:00:38,341 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;@55229b5c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 15:00:38,341 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-12-02 15:00:38,345 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-12-02 15:00:38,345 INFO L124 PetriNetUnfolderBase]: 0/6 cut-off events. [2024-12-02 15:00:38,345 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-12-02 15:00:38,345 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 15:00:38,346 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:00:38,346 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-12-02 15:00:38,350 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:00:38,351 INFO L85 PathProgramCache]: Analyzing trace with hash -423166330, now seen corresponding path program 1 times [2024-12-02 15:00:38,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:00:38,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787520160] [2024-12-02 15:00:38,356 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:00:38,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:00:38,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:00:38,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 15:00:38,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:00:38,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [787520160] [2024-12-02 15:00:38,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [787520160] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:00:38,506 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:00:38,506 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-12-02 15:00:38,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002190594] [2024-12-02 15:00:38,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:00:38,514 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 15:00:38,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:00:38,533 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 15:00:38,534 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 15:00:38,535 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 2 out of 9 [2024-12-02 15:00:38,536 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 11 places, 7 transitions, 20 flow. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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) [2024-12-02 15:00:38,536 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 15:00:38,537 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 2 of 9 [2024-12-02 15:00:38,537 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 15:00:38,560 INFO L124 PetriNetUnfolderBase]: 1/8 cut-off events. [2024-12-02 15:00:38,560 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-12-02 15:00:38,561 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21 conditions, 8 events. 1/8 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 3 event pairs, 1 based on Foata normal form. 1/9 useless extension candidates. Maximal degree in co-relation 8. Up to 7 conditions per place. [2024-12-02 15:00:38,562 INFO L140 encePairwiseOnDemand]: 7/9 looper letters, 0 selfloop transitions, 0 changer transitions 6/6 dead transitions. [2024-12-02 15:00:38,562 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 12 places, 6 transitions, 28 flow [2024-12-02 15:00:38,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 15:00:38,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-12-02 15:00:38,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 12 transitions. [2024-12-02 15:00:38,572 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4444444444444444 [2024-12-02 15:00:38,573 INFO L175 Difference]: Start difference. First operand has 11 places, 7 transitions, 20 flow. Second operand 3 states and 12 transitions. [2024-12-02 15:00:38,574 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 12 places, 6 transitions, 28 flow [2024-12-02 15:00:38,577 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 10 places, 6 transitions, 24 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-12-02 15:00:38,578 INFO L231 Difference]: Finished difference. Result has 10 places, 0 transitions, 0 flow [2024-12-02 15:00:38,580 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=9, PETRI_DIFFERENCE_MINUEND_FLOW=14, PETRI_DIFFERENCE_MINUEND_PLACES=8, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=6, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=6, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=10, PETRI_TRANSITIONS=0} [2024-12-02 15:00:38,582 INFO L279 CegarLoopForPetriNet]: 11 programPoint places, -1 predicate places. [2024-12-02 15:00:38,583 INFO L471 AbstractCegarLoop]: Abstraction has has 10 places, 0 transitions, 0 flow [2024-12-02 15:00:38,583 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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) [2024-12-02 15:00:38,585 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (1 of 2 remaining) [2024-12-02 15:00:38,585 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2024-12-02 15:00:38,586 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 15:00:38,586 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2024-12-02 15:00:38,590 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-12-02 15:00:38,590 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-12-02 15:00:38,595 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 03:00:38 BasicIcfg [2024-12-02 15:00:38,595 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-12-02 15:00:38,596 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-02 15:00:38,596 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-02 15:00:38,596 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-02 15:00:38,597 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:00:38" (3/4) ... [2024-12-02 15:00:38,610 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-12-02 15:00:38,613 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2024-12-02 15:00:38,616 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2024-12-02 15:00:38,616 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2024-12-02 15:00:38,616 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-12-02 15:00:38,616 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-12-02 15:00:38,663 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6139f371-582b-44f6-98bd-26380562dce1/bin/uautomizer-verify-84ZbGMXZE1/witness.graphml [2024-12-02 15:00:38,664 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6139f371-582b-44f6-98bd-26380562dce1/bin/uautomizer-verify-84ZbGMXZE1/witness.yml [2024-12-02 15:00:38,664 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-02 15:00:38,664 INFO L158 Benchmark]: Toolchain (without parser) took 1173.03ms. Allocated memory is still 142.6MB. Free memory was 115.9MB in the beginning and 110.3MB in the end (delta: 5.6MB). Peak memory consumption was 64.6MB. Max. memory is 16.1GB. [2024-12-02 15:00:38,665 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 142.6MB. Free memory is still 80.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 15:00:38,665 INFO L158 Benchmark]: CACSL2BoogieTranslator took 449.11ms. Allocated memory is still 142.6MB. Free memory was 115.9MB in the beginning and 90.1MB in the end (delta: 25.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-02 15:00:38,665 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.65ms. Allocated memory is still 142.6MB. Free memory was 90.1MB in the beginning and 88.4MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 15:00:38,666 INFO L158 Benchmark]: Boogie Preprocessor took 20.44ms. Allocated memory is still 142.6MB. Free memory was 88.4MB in the beginning and 87.2MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 15:00:38,666 INFO L158 Benchmark]: RCFGBuilder took 211.58ms. Allocated memory is still 142.6MB. Free memory was 87.2MB in the beginning and 75.6MB in the end (delta: 11.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-02 15:00:38,666 INFO L158 Benchmark]: TraceAbstraction took 389.91ms. Allocated memory is still 142.6MB. Free memory was 75.0MB in the beginning and 53.8MB in the end (delta: 21.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-02 15:00:38,667 INFO L158 Benchmark]: Witness Printer took 68.04ms. Allocated memory is still 142.6MB. Free memory was 53.8MB in the beginning and 110.3MB in the end (delta: -56.6MB). Peak memory consumption was 14.3MB. Max. memory is 16.1GB. [2024-12-02 15:00:38,668 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 142.6MB. Free memory is still 80.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 449.11ms. Allocated memory is still 142.6MB. Free memory was 115.9MB in the beginning and 90.1MB in the end (delta: 25.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 28.65ms. Allocated memory is still 142.6MB. Free memory was 90.1MB in the beginning and 88.4MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 20.44ms. Allocated memory is still 142.6MB. Free memory was 88.4MB in the beginning and 87.2MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 211.58ms. Allocated memory is still 142.6MB. Free memory was 87.2MB in the beginning and 75.6MB in the end (delta: 11.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 389.91ms. Allocated memory is still 142.6MB. Free memory was 75.0MB in the beginning and 53.8MB in the end (delta: 21.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 68.04ms. Allocated memory is still 142.6MB. Free memory was 53.8MB in the beginning and 110.3MB in the end (delta: -56.6MB). Peak memory consumption was 14.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 922]: 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, 13 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: 0.3s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5 IncrementalHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 0 mSDtfsCounter, 5 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=20occurred 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, 0.1s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 18 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! [2024-12-02 15:00:38,682 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6139f371-582b-44f6-98bd-26380562dce1/bin/uautomizer-verify-84ZbGMXZE1/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