./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 9bd2c7ff 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_c4f5cf17-92ea-4851-9397-2df917eadd22/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4f5cf17-92ea-4851-9397-2df917eadd22/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4f5cf17-92ea-4851-9397-2df917eadd22/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4f5cf17-92ea-4851-9397-2df917eadd22/bin/utaipan-verify-t7M7D8N6sZ/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_c4f5cf17-92ea-4851-9397-2df917eadd22/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4f5cf17-92ea-4851-9397-2df917eadd22/bin/utaipan-verify-t7M7D8N6sZ --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-9bd2c7f [2023-11-19 05:07:27,485 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 05:07:27,609 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4f5cf17-92ea-4851-9397-2df917eadd22/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2023-11-19 05:07:27,619 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 05:07:27,622 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 05:07:27,662 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 05:07:27,663 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 05:07:27,663 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 05:07:27,664 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 05:07:27,665 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 05:07:27,665 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 05:07:27,666 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 05:07:27,666 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 05:07:27,667 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 05:07:27,667 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 05:07:27,668 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 05:07:27,668 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 05:07:27,669 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 05:07:27,669 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 05:07:27,674 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 05:07:27,675 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 05:07:27,676 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 05:07:27,677 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 05:07:27,677 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 05:07:27,677 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 05:07:27,678 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 05:07:27,678 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 05:07:27,679 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 05:07:27,679 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 05:07:27,679 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-19 05:07:27,680 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-19 05:07:27,680 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-19 05:07:27,680 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 05:07:27,681 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 05:07:27,681 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 05:07:27,682 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 05:07:27,682 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 05:07:27,683 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 05:07:27,683 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 05:07:27,683 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:07:27,683 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 05:07:27,684 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 05:07:27,684 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 05:07:27,684 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 05:07:27,684 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 05:07:27,685 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 05:07:27,685 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_c4f5cf17-92ea-4851-9397-2df917eadd22/bin/utaipan-verify-t7M7D8N6sZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4f5cf17-92ea-4851-9397-2df917eadd22/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c62a6a6ca02e763ce9adebe2a1f0301f133cb0abc0bbd9fb473585b57a9c78f2 [2023-11-19 05:07:27,987 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 05:07:28,008 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 05:07:28,010 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 05:07:28,012 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 05:07:28,012 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 05:07:28,013 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4f5cf17-92ea-4851-9397-2df917eadd22/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/ldv-races/race-2_5-container_of.i [2023-11-19 05:07:31,119 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 05:07:31,492 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 05:07:31,493 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4f5cf17-92ea-4851-9397-2df917eadd22/sv-benchmarks/c/ldv-races/race-2_5-container_of.i [2023-11-19 05:07:31,524 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4f5cf17-92ea-4851-9397-2df917eadd22/bin/utaipan-verify-t7M7D8N6sZ/data/c7ab9d472/e09311bd08064c1a99d5d801f910a84f/FLAG70feb0e18 [2023-11-19 05:07:31,547 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4f5cf17-92ea-4851-9397-2df917eadd22/bin/utaipan-verify-t7M7D8N6sZ/data/c7ab9d472/e09311bd08064c1a99d5d801f910a84f [2023-11-19 05:07:31,555 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 05:07:31,558 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 05:07:31,560 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 05:07:31,560 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 05:07:31,590 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 05:07:31,595 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:07:31" (1/1) ... [2023-11-19 05:07:31,597 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b32929d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:07:31, skipping insertion in model container [2023-11-19 05:07:31,597 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:07:31" (1/1) ... [2023-11-19 05:07:31,709 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 05:07:31,906 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 05:07:32,662 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:07:32,678 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) [2023-11-19 05:07:32,679 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@65e77eac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:07:32, skipping insertion in model container [2023-11-19 05:07:32,679 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 05:07:32,679 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-19 05:07:32,682 INFO L158 Benchmark]: Toolchain (without parser) took 1122.73ms. Allocated memory is still 178.3MB. Free memory was 138.5MB in the beginning and 129.6MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-19 05:07:32,682 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 125.8MB. Free memory is still 91.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 05:07:32,683 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1119.78ms. Allocated memory is still 178.3MB. Free memory was 138.5MB in the beginning and 130.0MB in the end (delta: 8.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-19 05:07:32,685 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 125.8MB. Free memory is still 91.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1119.78ms. Allocated memory is still 178.3MB. Free memory was 138.5MB in the beginning and 130.0MB in the end (delta: 8.5MB). Peak memory consumption was 6.3MB. 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_c4f5cf17-92ea-4851-9397-2df917eadd22/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4f5cf17-92ea-4851-9397-2df917eadd22/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4f5cf17-92ea-4851-9397-2df917eadd22/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4f5cf17-92ea-4851-9397-2df917eadd22/bin/utaipan-verify-t7M7D8N6sZ/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_c4f5cf17-92ea-4851-9397-2df917eadd22/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4f5cf17-92ea-4851-9397-2df917eadd22/bin/utaipan-verify-t7M7D8N6sZ --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-9bd2c7f [2023-11-19 05:07:35,217 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 05:07:35,294 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4f5cf17-92ea-4851-9397-2df917eadd22/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2023-11-19 05:07:35,299 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 05:07:35,316 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 05:07:35,356 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 05:07:35,357 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 05:07:35,357 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 05:07:35,358 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 05:07:35,359 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 05:07:35,360 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 05:07:35,360 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 05:07:35,361 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 05:07:35,362 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 05:07:35,363 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 05:07:35,363 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 05:07:35,364 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 05:07:35,365 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 05:07:35,366 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 05:07:35,367 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 05:07:35,367 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 05:07:35,368 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 05:07:35,369 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 05:07:35,369 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-19 05:07:35,370 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-19 05:07:35,371 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-19 05:07:35,371 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 05:07:35,372 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 05:07:35,372 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 05:07:35,373 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 05:07:35,374 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 05:07:35,374 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 05:07:35,375 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 05:07:35,375 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 05:07:35,375 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 05:07:35,376 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 05:07:35,376 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:07:35,377 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 05:07:35,377 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 05:07:35,377 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-19 05:07:35,378 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 05:07:35,378 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 05:07:35,379 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 05:07:35,379 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_c4f5cf17-92ea-4851-9397-2df917eadd22/bin/utaipan-verify-t7M7D8N6sZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4f5cf17-92ea-4851-9397-2df917eadd22/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c62a6a6ca02e763ce9adebe2a1f0301f133cb0abc0bbd9fb473585b57a9c78f2 [2023-11-19 05:07:35,787 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 05:07:35,818 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 05:07:35,821 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 05:07:35,822 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 05:07:35,822 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 05:07:35,824 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4f5cf17-92ea-4851-9397-2df917eadd22/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/ldv-races/race-2_5-container_of.i [2023-11-19 05:07:39,058 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 05:07:39,604 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 05:07:39,606 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4f5cf17-92ea-4851-9397-2df917eadd22/sv-benchmarks/c/ldv-races/race-2_5-container_of.i [2023-11-19 05:07:39,647 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4f5cf17-92ea-4851-9397-2df917eadd22/bin/utaipan-verify-t7M7D8N6sZ/data/756d20b03/7ee02c520baf42ab9d92859be4214a52/FLAG4c1a293e1 [2023-11-19 05:07:39,668 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4f5cf17-92ea-4851-9397-2df917eadd22/bin/utaipan-verify-t7M7D8N6sZ/data/756d20b03/7ee02c520baf42ab9d92859be4214a52 [2023-11-19 05:07:39,676 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 05:07:39,679 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 05:07:39,684 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 05:07:39,685 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 05:07:39,691 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 05:07:39,695 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:07:39" (1/1) ... [2023-11-19 05:07:39,697 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@531ee072 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:07:39, skipping insertion in model container [2023-11-19 05:07:39,697 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:07:39" (1/1) ... [2023-11-19 05:07:39,794 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 05:07:40,053 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 05:07:41,077 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:07:41,122 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-19 05:07:41,149 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 05:07:41,154 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 05:07:41,243 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:07:41,261 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 05:07:41,281 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 05:07:41,353 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:07:41,491 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 05:07:41,491 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 05:07:41,491 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 05:07:41,498 INFO L206 MainTranslator]: Completed translation [2023-11-19 05:07:41,498 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:07:41 WrapperNode [2023-11-19 05:07:41,498 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 05:07:41,499 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 05:07:41,499 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 05:07:41,500 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 05:07:41,506 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:07:41" (1/1) ... [2023-11-19 05:07:41,544 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:07:41" (1/1) ... [2023-11-19 05:07:41,577 INFO L138 Inliner]: procedures = 473, calls = 64, calls flagged for inlining = 13, calls inlined = 18, statements flattened = 160 [2023-11-19 05:07:41,577 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 05:07:41,578 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 05:07:41,578 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 05:07:41,578 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 05:07:41,588 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:07:41" (1/1) ... [2023-11-19 05:07:41,588 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:07:41" (1/1) ... [2023-11-19 05:07:41,596 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:07:41" (1/1) ... [2023-11-19 05:07:41,597 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:07:41" (1/1) ... [2023-11-19 05:07:41,621 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:07:41" (1/1) ... [2023-11-19 05:07:41,624 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:07:41" (1/1) ... [2023-11-19 05:07:41,632 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:07:41" (1/1) ... [2023-11-19 05:07:41,636 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:07:41" (1/1) ... [2023-11-19 05:07:41,646 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 05:07:41,647 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 05:07:41,647 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 05:07:41,647 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 05:07:41,648 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:07:41" (1/1) ... [2023-11-19 05:07:41,666 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:07:41,681 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4f5cf17-92ea-4851-9397-2df917eadd22/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:07:41,695 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4f5cf17-92ea-4851-9397-2df917eadd22/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 05:07:41,759 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4f5cf17-92ea-4851-9397-2df917eadd22/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 05:07:41,784 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-19 05:07:41,784 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 05:07:41,785 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 05:07:41,785 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2023-11-19 05:07:41,785 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-19 05:07:41,785 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-19 05:07:41,785 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 05:07:41,785 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 05:07:41,786 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 05:07:41,786 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 05:07:41,786 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-19 05:07:41,786 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2023-11-19 05:07:41,786 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2023-11-19 05:07:41,787 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 05:07:41,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-19 05:07:41,789 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-19 05:07:42,219 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 05:07:42,221 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 05:07:43,208 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 05:07:43,369 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 05:07:43,369 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 05:07:43,379 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:07:43 BoogieIcfgContainer [2023-11-19 05:07:43,379 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 05:07:43,383 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 05:07:43,383 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 05:07:43,387 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 05:07:43,388 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:07:39" (1/3) ... [2023-11-19 05:07:43,389 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b14027c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:07:43, skipping insertion in model container [2023-11-19 05:07:43,389 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:07:41" (2/3) ... [2023-11-19 05:07:43,391 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b14027c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:07:43, skipping insertion in model container [2023-11-19 05:07:43,391 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:07:43" (3/3) ... [2023-11-19 05:07:43,393 INFO L112 eAbstractionObserver]: Analyzing ICFG race-2_5-container_of.i [2023-11-19 05:07:43,416 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 05:07:43,416 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 49 error locations. [2023-11-19 05:07:43,416 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-19 05:07:43,571 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-19 05:07:43,629 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-11-19 05:07:43,646 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 243 places, 251 transitions, 516 flow [2023-11-19 05:07:43,649 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 243 places, 251 transitions, 516 flow [2023-11-19 05:07:43,651 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 243 places, 251 transitions, 516 flow [2023-11-19 05:07:43,785 INFO L124 PetriNetUnfolderBase]: 18/319 cut-off events. [2023-11-19 05:07:43,785 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-19 05:07:43,798 INFO L83 FinitePrefix]: Finished finitePrefix Result has 328 conditions, 319 events. 18/319 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 882 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. [2023-11-19 05:07:43,808 INFO L119 LiptonReduction]: Number of co-enabled transitions 8932