./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 e7bb482b 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_a9f0e262-9dbe-4100-86c9-55455de82a35/bin/utaipan-verify-FOvIYxoinp/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9f0e262-9dbe-4100-86c9-55455de82a35/bin/utaipan-verify-FOvIYxoinp/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9f0e262-9dbe-4100-86c9-55455de82a35/bin/utaipan-verify-FOvIYxoinp/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9f0e262-9dbe-4100-86c9-55455de82a35/bin/utaipan-verify-FOvIYxoinp/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_a9f0e262-9dbe-4100-86c9-55455de82a35/bin/utaipan-verify-FOvIYxoinp/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9f0e262-9dbe-4100-86c9-55455de82a35/bin/utaipan-verify-FOvIYxoinp --witnessprinter.witness.filename witness.graphml --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-e7bb482 [2023-11-06 20:32:10,277 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 20:32:10,347 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9f0e262-9dbe-4100-86c9-55455de82a35/bin/utaipan-verify-FOvIYxoinp/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2023-11-06 20:32:10,354 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 20:32:10,354 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 20:32:10,382 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 20:32:10,383 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 20:32:10,384 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 20:32:10,387 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 20:32:10,388 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 20:32:10,388 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-06 20:32:10,389 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-06 20:32:10,391 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-06 20:32:10,392 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-06 20:32:10,392 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-06 20:32:10,395 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-06 20:32:10,395 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-06 20:32:10,396 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-06 20:32:10,400 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-06 20:32:10,401 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-06 20:32:10,401 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-06 20:32:10,402 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-06 20:32:10,403 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 20:32:10,403 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 20:32:10,404 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 20:32:10,405 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 20:32:10,405 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 20:32:10,406 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 20:32:10,406 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 20:32:10,406 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-06 20:32:10,407 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-06 20:32:10,408 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-06 20:32:10,409 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 20:32:10,409 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-06 20:32:10,409 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 20:32:10,430 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 20:32:10,430 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 20:32:10,430 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 20:32:10,430 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 20:32:10,430 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 20:32:10,431 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 20:32:10,431 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 20:32:10,432 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-06 20:32:10,432 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 20:32:10,432 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-06 20:32:10,432 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 20:32:10,432 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_a9f0e262-9dbe-4100-86c9-55455de82a35/bin/utaipan-verify-FOvIYxoinp/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9f0e262-9dbe-4100-86c9-55455de82a35/bin/utaipan-verify-FOvIYxoinp Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c62a6a6ca02e763ce9adebe2a1f0301f133cb0abc0bbd9fb473585b57a9c78f2 [2023-11-06 20:32:10,713 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 20:32:10,773 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 20:32:10,776 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 20:32:10,777 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 20:32:10,779 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 20:32:10,780 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9f0e262-9dbe-4100-86c9-55455de82a35/bin/utaipan-verify-FOvIYxoinp/../../sv-benchmarks/c/ldv-races/race-2_5-container_of.i [2023-11-06 20:32:13,979 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 20:32:14,372 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 20:32:14,373 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9f0e262-9dbe-4100-86c9-55455de82a35/sv-benchmarks/c/ldv-races/race-2_5-container_of.i [2023-11-06 20:32:14,422 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9f0e262-9dbe-4100-86c9-55455de82a35/bin/utaipan-verify-FOvIYxoinp/data/d9c535baa/e8356963b2d542e7b9b1f2d1184b1565/FLAG58f680f5f [2023-11-06 20:32:14,440 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9f0e262-9dbe-4100-86c9-55455de82a35/bin/utaipan-verify-FOvIYxoinp/data/d9c535baa/e8356963b2d542e7b9b1f2d1184b1565 [2023-11-06 20:32:14,448 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 20:32:14,461 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 20:32:14,463 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 20:32:14,463 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 20:32:14,469 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 20:32:14,470 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:32:14" (1/1) ... [2023-11-06 20:32:14,471 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2303fd04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:32:14, skipping insertion in model container [2023-11-06 20:32:14,471 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:32:14" (1/1) ... [2023-11-06 20:32:14,573 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 20:32:14,724 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-06 20:32:15,390 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 20:32:15,413 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) [2023-11-06 20:32:15,414 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6012c807 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:32:15, skipping insertion in model container [2023-11-06 20:32:15,414 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 20:32:15,415 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-06 20:32:15,417 INFO L158 Benchmark]: Toolchain (without parser) took 954.82ms. Allocated memory is still 176.2MB. Free memory was 145.9MB in the beginning and 127.8MB in the end (delta: 18.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-06 20:32:15,418 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 134.2MB. Free memory is still 107.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 20:32:15,419 INFO L158 Benchmark]: CACSL2BoogieTranslator took 952.04ms. Allocated memory is still 176.2MB. Free memory was 145.9MB in the beginning and 127.8MB in the end (delta: 18.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-06 20:32:15,420 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 134.2MB. Free memory is still 107.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 952.04ms. Allocated memory is still 176.2MB. Free memory was 145.9MB in the beginning and 127.8MB in the end (delta: 18.1MB). Peak memory consumption was 16.8MB. 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_a9f0e262-9dbe-4100-86c9-55455de82a35/bin/utaipan-verify-FOvIYxoinp/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9f0e262-9dbe-4100-86c9-55455de82a35/bin/utaipan-verify-FOvIYxoinp/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9f0e262-9dbe-4100-86c9-55455de82a35/bin/utaipan-verify-FOvIYxoinp/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9f0e262-9dbe-4100-86c9-55455de82a35/bin/utaipan-verify-FOvIYxoinp/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_a9f0e262-9dbe-4100-86c9-55455de82a35/bin/utaipan-verify-FOvIYxoinp/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9f0e262-9dbe-4100-86c9-55455de82a35/bin/utaipan-verify-FOvIYxoinp --witnessprinter.witness.filename witness.graphml --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-e7bb482 [2023-11-06 20:32:17,867 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 20:32:17,983 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9f0e262-9dbe-4100-86c9-55455de82a35/bin/utaipan-verify-FOvIYxoinp/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2023-11-06 20:32:17,989 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 20:32:17,990 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 20:32:18,018 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 20:32:18,019 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 20:32:18,019 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 20:32:18,020 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 20:32:18,021 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 20:32:18,022 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-06 20:32:18,022 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-06 20:32:18,023 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-06 20:32:18,023 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-06 20:32:18,024 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-06 20:32:18,025 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-06 20:32:18,026 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 20:32:18,026 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 20:32:18,027 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 20:32:18,027 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 20:32:18,028 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 20:32:18,029 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 20:32:18,029 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 20:32:18,030 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-06 20:32:18,030 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-06 20:32:18,030 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-06 20:32:18,031 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 20:32:18,031 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-06 20:32:18,032 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-06 20:32:18,032 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-06 20:32:18,033 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 20:32:18,033 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 20:32:18,034 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 20:32:18,034 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 20:32:18,034 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 20:32:18,035 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 20:32:18,035 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 20:32:18,035 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 20:32:18,036 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 20:32:18,036 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-06 20:32:18,036 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-06 20:32:18,037 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-06 20:32:18,037 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 20:32:18,037 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_a9f0e262-9dbe-4100-86c9-55455de82a35/bin/utaipan-verify-FOvIYxoinp/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9f0e262-9dbe-4100-86c9-55455de82a35/bin/utaipan-verify-FOvIYxoinp Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c62a6a6ca02e763ce9adebe2a1f0301f133cb0abc0bbd9fb473585b57a9c78f2 [2023-11-06 20:32:18,484 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 20:32:18,514 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 20:32:18,517 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 20:32:18,519 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 20:32:18,519 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 20:32:18,521 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9f0e262-9dbe-4100-86c9-55455de82a35/bin/utaipan-verify-FOvIYxoinp/../../sv-benchmarks/c/ldv-races/race-2_5-container_of.i [2023-11-06 20:32:21,708 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 20:32:22,192 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 20:32:22,193 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9f0e262-9dbe-4100-86c9-55455de82a35/sv-benchmarks/c/ldv-races/race-2_5-container_of.i [2023-11-06 20:32:22,225 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9f0e262-9dbe-4100-86c9-55455de82a35/bin/utaipan-verify-FOvIYxoinp/data/6813bcb3e/279f9d7f0f1a4b88a8b7da266ede481c/FLAG443dada9a [2023-11-06 20:32:22,244 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9f0e262-9dbe-4100-86c9-55455de82a35/bin/utaipan-verify-FOvIYxoinp/data/6813bcb3e/279f9d7f0f1a4b88a8b7da266ede481c [2023-11-06 20:32:22,251 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 20:32:22,253 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 20:32:22,256 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 20:32:22,257 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 20:32:22,262 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 20:32:22,262 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:32:22" (1/1) ... [2023-11-06 20:32:22,264 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1754daee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:32:22, skipping insertion in model container [2023-11-06 20:32:22,264 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:32:22" (1/1) ... [2023-11-06 20:32:22,354 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 20:32:22,540 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-06 20:32:23,269 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 20:32:23,289 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-06 20:32:23,312 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 20:32:23,316 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-06 20:32:23,399 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 20:32:23,410 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 20:32:23,421 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-06 20:32:23,499 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 20:32:23,647 WARN L672 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 20:32:23,647 WARN L672 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 20:32:23,647 WARN L672 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 20:32:23,655 INFO L206 MainTranslator]: Completed translation [2023-11-06 20:32:23,656 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:32:23 WrapperNode [2023-11-06 20:32:23,656 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 20:32:23,657 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 20:32:23,657 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 20:32:23,657 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 20:32:23,663 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:32:23" (1/1) ... [2023-11-06 20:32:23,700 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:32:23" (1/1) ... [2023-11-06 20:32:23,733 INFO L138 Inliner]: procedures = 473, calls = 64, calls flagged for inlining = 13, calls inlined = 18, statements flattened = 160 [2023-11-06 20:32:23,733 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 20:32:23,734 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 20:32:23,734 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 20:32:23,734 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 20:32:23,743 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:32:23" (1/1) ... [2023-11-06 20:32:23,744 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:32:23" (1/1) ... [2023-11-06 20:32:23,750 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:32:23" (1/1) ... [2023-11-06 20:32:23,751 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:32:23" (1/1) ... [2023-11-06 20:32:23,784 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:32:23" (1/1) ... [2023-11-06 20:32:23,787 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:32:23" (1/1) ... [2023-11-06 20:32:23,805 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:32:23" (1/1) ... [2023-11-06 20:32:23,808 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:32:23" (1/1) ... [2023-11-06 20:32:23,817 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 20:32:23,827 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 20:32:23,827 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 20:32:23,827 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 20:32:23,828 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:32:23" (1/1) ... [2023-11-06 20:32:23,835 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 20:32:23,846 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9f0e262-9dbe-4100-86c9-55455de82a35/bin/utaipan-verify-FOvIYxoinp/z3 [2023-11-06 20:32:23,858 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9f0e262-9dbe-4100-86c9-55455de82a35/bin/utaipan-verify-FOvIYxoinp/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 20:32:23,892 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9f0e262-9dbe-4100-86c9-55455de82a35/bin/utaipan-verify-FOvIYxoinp/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 20:32:23,912 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-06 20:32:23,912 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 20:32:23,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-06 20:32:23,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2023-11-06 20:32:23,912 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-06 20:32:23,913 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-06 20:32:23,913 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 20:32:23,913 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-06 20:32:23,913 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 20:32:23,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 20:32:23,913 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-06 20:32:23,914 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2023-11-06 20:32:23,914 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2023-11-06 20:32:23,914 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 20:32:23,914 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-06 20:32:23,916 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-06 20:32:24,284 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 20:32:24,286 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 20:32:25,069 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 20:32:25,175 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 20:32:25,175 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-06 20:32:25,179 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:32:25 BoogieIcfgContainer [2023-11-06 20:32:25,179 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 20:32:25,182 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 20:32:25,182 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 20:32:25,186 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 20:32:25,186 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 08:32:22" (1/3) ... [2023-11-06 20:32:25,187 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@255e62e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 08:32:25, skipping insertion in model container [2023-11-06 20:32:25,187 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:32:23" (2/3) ... [2023-11-06 20:32:25,189 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@255e62e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 08:32:25, skipping insertion in model container [2023-11-06 20:32:25,189 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:32:25" (3/3) ... [2023-11-06 20:32:25,190 INFO L112 eAbstractionObserver]: Analyzing ICFG race-2_5-container_of.i [2023-11-06 20:32:25,211 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 20:32:25,211 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 49 error locations. [2023-11-06 20:32:25,211 INFO L519 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-06 20:32:25,337 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-06 20:32:25,397 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-11-06 20:32:25,415 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 243 places, 247 transitions, 508 flow [2023-11-06 20:32:25,417 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 243 places, 247 transitions, 508 flow [2023-11-06 20:32:25,419 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 243 places, 247 transitions, 508 flow [2023-11-06 20:32:25,584 INFO L124 PetriNetUnfolderBase]: 14/315 cut-off events. [2023-11-06 20:32:25,587 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-06 20:32:25,594 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. [2023-11-06 20:32:25,605 INFO L119 LiptonReduction]: Number of co-enabled transitions 8756