./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-races/race-2_5-container_of.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version cf1a7837 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a638915d-87cd-4780-b678-6451cd508fe1/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a638915d-87cd-4780-b678-6451cd508fe1/bin/utaipan-verify-NcY6lQBIFX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a638915d-87cd-4780-b678-6451cd508fe1/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a638915d-87cd-4780-b678-6451cd508fe1/bin/utaipan-verify-NcY6lQBIFX/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-races/race-2_5-container_of.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a638915d-87cd-4780-b678-6451cd508fe1/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a638915d-87cd-4780-b678-6451cd508fe1/bin/utaipan-verify-NcY6lQBIFX --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c62a6a6ca02e763ce9adebe2a1f0301f133cb0abc0bbd9fb473585b57a9c78f2 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:46:05,060 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:46:05,128 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a638915d-87cd-4780-b678-6451cd508fe1/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2023-11-12 00:46:05,132 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:46:05,133 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:46:05,159 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:46:05,159 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:46:05,160 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:46:05,161 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:46:05,162 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:46:05,162 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:46:05,163 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:46:05,164 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:46:05,164 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 00:46:05,165 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:46:05,165 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:46:05,166 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 00:46:05,167 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 00:46:05,167 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:46:05,168 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 00:46:05,168 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 00:46:05,169 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 00:46:05,170 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 00:46:05,170 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 00:46:05,171 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:46:05,171 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 00:46:05,172 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:46:05,172 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 00:46:05,173 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:46:05,173 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-12 00:46:05,174 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-12 00:46:05,174 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-12 00:46:05,174 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:46:05,175 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-12 00:46:05,175 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 00:46:05,175 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 00:46:05,176 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:46:05,176 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:46:05,176 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:46:05,177 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:46:05,177 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:46:05,177 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:46:05,178 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 00:46:05,178 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 00:46:05,178 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:46:05,179 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:46:05,179 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a638915d-87cd-4780-b678-6451cd508fe1/bin/utaipan-verify-NcY6lQBIFX/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a638915d-87cd-4780-b678-6451cd508fe1/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c62a6a6ca02e763ce9adebe2a1f0301f133cb0abc0bbd9fb473585b57a9c78f2 [2023-11-12 00:46:05,513 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:46:05,548 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:46:05,551 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:46:05,553 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:46:05,554 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:46:05,556 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a638915d-87cd-4780-b678-6451cd508fe1/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/ldv-races/race-2_5-container_of.i [2023-11-12 00:46:08,772 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:46:09,171 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:46:09,172 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a638915d-87cd-4780-b678-6451cd508fe1/sv-benchmarks/c/ldv-races/race-2_5-container_of.i [2023-11-12 00:46:09,212 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a638915d-87cd-4780-b678-6451cd508fe1/bin/utaipan-verify-NcY6lQBIFX/data/3678e808f/afcdeae92b3b4038ab5dcb483f19c93e/FLAG5908971d2 [2023-11-12 00:46:09,233 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a638915d-87cd-4780-b678-6451cd508fe1/bin/utaipan-verify-NcY6lQBIFX/data/3678e808f/afcdeae92b3b4038ab5dcb483f19c93e [2023-11-12 00:46:09,243 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:46:09,244 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:46:09,246 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:46:09,247 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:46:09,252 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:46:09,253 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:46:09" (1/1) ... [2023-11-12 00:46:09,254 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33f06ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:46:09, skipping insertion in model container [2023-11-12 00:46:09,254 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:46:09" (1/1) ... [2023-11-12 00:46:09,365 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:46:09,565 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-12 00:46:10,240 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:46:10,253 ERROR L324 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2023-11-12 00:46:10,254 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@12218a1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:46:10, skipping insertion in model container [2023-11-12 00:46:10,254 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:46:10,255 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-12 00:46:10,257 INFO L158 Benchmark]: Toolchain (without parser) took 1011.46ms. Allocated memory is still 125.8MB. Free memory was 78.6MB in the beginning and 60.0MB in the end (delta: 18.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-12 00:46:10,257 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 125.8MB. Free memory is still 97.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:46:10,258 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1008.34ms. Allocated memory is still 125.8MB. Free memory was 78.6MB in the beginning and 60.0MB in the end (delta: 18.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-12 00:46:10,259 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 125.8MB. Free memory is still 97.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1008.34ms. Allocated memory is still 125.8MB. Free memory was 78.6MB in the beginning and 60.0MB in the end (delta: 18.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 1691]: Unsupported Syntax Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a638915d-87cd-4780-b678-6451cd508fe1/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a638915d-87cd-4780-b678-6451cd508fe1/bin/utaipan-verify-NcY6lQBIFX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a638915d-87cd-4780-b678-6451cd508fe1/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a638915d-87cd-4780-b678-6451cd508fe1/bin/utaipan-verify-NcY6lQBIFX/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-races/race-2_5-container_of.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a638915d-87cd-4780-b678-6451cd508fe1/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a638915d-87cd-4780-b678-6451cd508fe1/bin/utaipan-verify-NcY6lQBIFX --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c62a6a6ca02e763ce9adebe2a1f0301f133cb0abc0bbd9fb473585b57a9c78f2 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:46:12,836 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:46:12,944 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a638915d-87cd-4780-b678-6451cd508fe1/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2023-11-12 00:46:12,956 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:46:12,957 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:46:13,007 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:46:13,012 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:46:13,012 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:46:13,013 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:46:13,019 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:46:13,019 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:46:13,020 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:46:13,020 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:46:13,022 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:46:13,023 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:46:13,023 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:46:13,024 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 00:46:13,024 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 00:46:13,025 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:46:13,026 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 00:46:13,027 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:46:13,027 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 00:46:13,028 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:46:13,028 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-12 00:46:13,029 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-12 00:46:13,029 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-12 00:46:13,030 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:46:13,030 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-12 00:46:13,030 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-12 00:46:13,031 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-12 00:46:13,032 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 00:46:13,033 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 00:46:13,033 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:46:13,033 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:46:13,034 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 00:46:13,034 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:46:13,035 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:46:13,035 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:46:13,036 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:46:13,036 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-12 00:46:13,036 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-12 00:46:13,036 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:46:13,037 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:46:13,037 INFO L153 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a638915d-87cd-4780-b678-6451cd508fe1/bin/utaipan-verify-NcY6lQBIFX/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a638915d-87cd-4780-b678-6451cd508fe1/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c62a6a6ca02e763ce9adebe2a1f0301f133cb0abc0bbd9fb473585b57a9c78f2 [2023-11-12 00:46:13,460 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:46:13,482 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:46:13,485 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:46:13,486 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:46:13,487 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:46:13,488 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a638915d-87cd-4780-b678-6451cd508fe1/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/ldv-races/race-2_5-container_of.i [2023-11-12 00:46:16,682 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:46:17,146 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:46:17,150 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a638915d-87cd-4780-b678-6451cd508fe1/sv-benchmarks/c/ldv-races/race-2_5-container_of.i [2023-11-12 00:46:17,181 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a638915d-87cd-4780-b678-6451cd508fe1/bin/utaipan-verify-NcY6lQBIFX/data/cfa97fd38/d99091ad2d4f4464824648c60e163d1f/FLAGb4b18aa85 [2023-11-12 00:46:17,206 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a638915d-87cd-4780-b678-6451cd508fe1/bin/utaipan-verify-NcY6lQBIFX/data/cfa97fd38/d99091ad2d4f4464824648c60e163d1f [2023-11-12 00:46:17,215 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:46:17,218 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:46:17,224 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:46:17,224 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:46:17,230 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:46:17,231 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:46:17" (1/1) ... [2023-11-12 00:46:17,232 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3992d6b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:46:17, skipping insertion in model container [2023-11-12 00:46:17,233 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:46:17" (1/1) ... [2023-11-12 00:46:17,324 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:46:17,519 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-12 00:46:18,216 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:46:18,237 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-12 00:46:18,250 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:46:18,252 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-12 00:46:18,297 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:46:18,303 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:46:18,317 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-12 00:46:18,400 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:46:18,634 WARN L672 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:46:18,634 WARN L672 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:46:18,635 WARN L672 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:46:18,644 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:46:18,645 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:46:18 WrapperNode [2023-11-12 00:46:18,645 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:46:18,646 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:46:18,647 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:46:18,647 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:46:18,656 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:46:18" (1/1) ... [2023-11-12 00:46:18,717 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:46:18" (1/1) ... [2023-11-12 00:46:18,764 INFO L138 Inliner]: procedures = 473, calls = 64, calls flagged for inlining = 13, calls inlined = 18, statements flattened = 160 [2023-11-12 00:46:18,765 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:46:18,766 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:46:18,766 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:46:18,766 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:46:18,776 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:46:18" (1/1) ... [2023-11-12 00:46:18,777 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:46:18" (1/1) ... [2023-11-12 00:46:18,799 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:46:18" (1/1) ... [2023-11-12 00:46:18,800 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:46:18" (1/1) ... [2023-11-12 00:46:18,829 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:46:18" (1/1) ... [2023-11-12 00:46:18,832 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:46:18" (1/1) ... [2023-11-12 00:46:18,839 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:46:18" (1/1) ... [2023-11-12 00:46:18,843 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:46:18" (1/1) ... [2023-11-12 00:46:18,851 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:46:18,852 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:46:18,853 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:46:18,853 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:46:18,854 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:46:18" (1/1) ... [2023-11-12 00:46:18,861 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:46:18,907 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a638915d-87cd-4780-b678-6451cd508fe1/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:46:18,929 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a638915d-87cd-4780-b678-6451cd508fe1/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:46:18,945 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a638915d-87cd-4780-b678-6451cd508fe1/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:46:18,980 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-12 00:46:18,980 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 00:46:18,982 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-12 00:46:18,983 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2023-11-12 00:46:18,983 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-12 00:46:18,983 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-12 00:46:18,983 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:46:18,984 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-12 00:46:18,984 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:46:18,984 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:46:18,984 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-12 00:46:18,984 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2023-11-12 00:46:18,985 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2023-11-12 00:46:18,986 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 00:46:18,987 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-12 00:46:18,989 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-12 00:46:19,333 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:46:19,335 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:46:20,061 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:46:20,140 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:46:20,140 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-12 00:46:20,143 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:46:20 BoogieIcfgContainer [2023-11-12 00:46:20,143 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:46:20,146 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:46:20,146 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:46:20,150 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:46:20,150 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:46:17" (1/3) ... [2023-11-12 00:46:20,151 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ec01547 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:46:20, skipping insertion in model container [2023-11-12 00:46:20,151 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:46:18" (2/3) ... [2023-11-12 00:46:20,152 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ec01547 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:46:20, skipping insertion in model container [2023-11-12 00:46:20,152 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:46:20" (3/3) ... [2023-11-12 00:46:20,153 INFO L112 eAbstractionObserver]: Analyzing ICFG race-2_5-container_of.i [2023-11-12 00:46:20,174 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:46:20,175 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 49 error locations. [2023-11-12 00:46:20,175 INFO L521 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-12 00:46:20,327 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-12 00:46:20,379 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-11-12 00:46:20,401 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 243 places, 247 transitions, 508 flow [2023-11-12 00:46:20,406 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 243 places, 247 transitions, 508 flow [2023-11-12 00:46:20,409 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 243 places, 247 transitions, 508 flow [2023-11-12 00:46:20,608 INFO L124 PetriNetUnfolderBase]: 14/315 cut-off events. [2023-11-12 00:46:20,611 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-12 00:46:20,618 INFO L83 FinitePrefix]: Finished finitePrefix Result has 324 conditions, 315 events. 14/315 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 873 event pairs, 0 based on Foata normal form. 0/231 useless extension candidates. Maximal degree in co-relation 150. Up to 4 conditions per place. [2023-11-12 00:46:20,629 INFO L119 LiptonReduction]: Number of co-enabled transitions 8756