./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-races/race-2_1-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_bfaff06f-c806-4340-b868-bdeff39d8fd8/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfaff06f-c806-4340-b868-bdeff39d8fd8/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_bfaff06f-c806-4340-b868-bdeff39d8fd8/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfaff06f-c806-4340-b868-bdeff39d8fd8/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-races/race-2_1-container_of.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfaff06f-c806-4340-b868-bdeff39d8fd8/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_bfaff06f-c806-4340-b868-bdeff39d8fd8/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 fddded73cca9ade55587111b2e2c843e75dd81397929514bda88fadfc663c7db --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 05:12:02,997 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 05:12:03,118 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfaff06f-c806-4340-b868-bdeff39d8fd8/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2023-11-19 05:12:03,126 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 05:12:03,127 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 05:12:03,161 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 05:12:03,162 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 05:12:03,163 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 05:12:03,164 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 05:12:03,169 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 05:12:03,170 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 05:12:03,171 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 05:12:03,172 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 05:12:03,174 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 05:12:03,174 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 05:12:03,175 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 05:12:03,175 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 05:12:03,177 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 05:12:03,178 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 05:12:03,178 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 05:12:03,179 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 05:12:03,180 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 05:12:03,181 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 05:12:03,181 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 05:12:03,182 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 05:12:03,183 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 05:12:03,183 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 05:12:03,184 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 05:12:03,184 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 05:12:03,185 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-19 05:12:03,186 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-19 05:12:03,187 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-19 05:12:03,187 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 05:12:03,187 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 05:12:03,188 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 05:12:03,188 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 05:12:03,188 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 05:12:03,189 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 05:12:03,189 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 05:12:03,189 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:12:03,190 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 05:12:03,190 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 05:12:03,191 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 05:12:03,191 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 05:12:03,192 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 05:12:03,192 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 05:12:03,193 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_bfaff06f-c806-4340-b868-bdeff39d8fd8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfaff06f-c806-4340-b868-bdeff39d8fd8/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fddded73cca9ade55587111b2e2c843e75dd81397929514bda88fadfc663c7db [2023-11-19 05:12:03,509 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 05:12:03,552 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 05:12:03,556 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 05:12:03,557 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 05:12:03,559 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 05:12:03,560 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfaff06f-c806-4340-b868-bdeff39d8fd8/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/ldv-races/race-2_1-container_of.i [2023-11-19 05:12:06,744 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 05:12:07,122 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 05:12:07,123 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfaff06f-c806-4340-b868-bdeff39d8fd8/sv-benchmarks/c/ldv-races/race-2_1-container_of.i [2023-11-19 05:12:07,158 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfaff06f-c806-4340-b868-bdeff39d8fd8/bin/utaipan-verify-t7M7D8N6sZ/data/52c04b04a/9ec109bbefa74e68849705beb6d807dd/FLAG4316606fb [2023-11-19 05:12:07,179 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfaff06f-c806-4340-b868-bdeff39d8fd8/bin/utaipan-verify-t7M7D8N6sZ/data/52c04b04a/9ec109bbefa74e68849705beb6d807dd [2023-11-19 05:12:07,185 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 05:12:07,187 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 05:12:07,191 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 05:12:07,191 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 05:12:07,197 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 05:12:07,198 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:12:07" (1/1) ... [2023-11-19 05:12:07,199 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c3e9823 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:12:07, skipping insertion in model container [2023-11-19 05:12:07,200 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:12:07" (1/1) ... [2023-11-19 05:12:07,282 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 05:12:08,275 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:12:08,288 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 05:12:08,289 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@1b3e7746 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:12:08, skipping insertion in model container [2023-11-19 05:12:08,289 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 05:12:08,289 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-19 05:12:08,291 INFO L158 Benchmark]: Toolchain (without parser) took 1103.35ms. Allocated memory is still 127.9MB. Free memory was 79.6MB in the beginning and 61.1MB in the end (delta: 18.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-19 05:12:08,292 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 127.9MB. Free memory is still 102.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 05:12:08,293 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1098.10ms. Allocated memory is still 127.9MB. Free memory was 79.2MB in the beginning and 61.1MB in the end (delta: 18.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-19 05:12:08,294 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 127.9MB. Free memory is still 102.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1098.10ms. Allocated memory is still 127.9MB. Free memory was 79.2MB in the beginning and 61.1MB in the end (delta: 18.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 1709]: 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_bfaff06f-c806-4340-b868-bdeff39d8fd8/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfaff06f-c806-4340-b868-bdeff39d8fd8/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_bfaff06f-c806-4340-b868-bdeff39d8fd8/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfaff06f-c806-4340-b868-bdeff39d8fd8/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-races/race-2_1-container_of.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfaff06f-c806-4340-b868-bdeff39d8fd8/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_bfaff06f-c806-4340-b868-bdeff39d8fd8/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 fddded73cca9ade55587111b2e2c843e75dd81397929514bda88fadfc663c7db --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 05:12:11,059 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 05:12:11,214 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfaff06f-c806-4340-b868-bdeff39d8fd8/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2023-11-19 05:12:11,223 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 05:12:11,224 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 05:12:11,275 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 05:12:11,276 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 05:12:11,276 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 05:12:11,278 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 05:12:11,283 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 05:12:11,283 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 05:12:11,284 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 05:12:11,284 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 05:12:11,286 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 05:12:11,286 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 05:12:11,287 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 05:12:11,288 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 05:12:11,288 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 05:12:11,289 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 05:12:11,290 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 05:12:11,290 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 05:12:11,291 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 05:12:11,292 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 05:12:11,292 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-19 05:12:11,292 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-19 05:12:11,293 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-19 05:12:11,293 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 05:12:11,294 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 05:12:11,294 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 05:12:11,294 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 05:12:11,296 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 05:12:11,296 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 05:12:11,297 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 05:12:11,297 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 05:12:11,297 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 05:12:11,297 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 05:12:11,299 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:12:11,299 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 05:12:11,299 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 05:12:11,300 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-19 05:12:11,300 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 05:12:11,300 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 05:12:11,301 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 05:12:11,301 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_bfaff06f-c806-4340-b868-bdeff39d8fd8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfaff06f-c806-4340-b868-bdeff39d8fd8/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fddded73cca9ade55587111b2e2c843e75dd81397929514bda88fadfc663c7db [2023-11-19 05:12:11,708 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 05:12:11,736 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 05:12:11,741 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 05:12:11,743 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 05:12:11,744 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 05:12:11,745 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfaff06f-c806-4340-b868-bdeff39d8fd8/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/ldv-races/race-2_1-container_of.i [2023-11-19 05:12:15,231 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 05:12:15,708 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 05:12:15,708 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfaff06f-c806-4340-b868-bdeff39d8fd8/sv-benchmarks/c/ldv-races/race-2_1-container_of.i [2023-11-19 05:12:15,747 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfaff06f-c806-4340-b868-bdeff39d8fd8/bin/utaipan-verify-t7M7D8N6sZ/data/9035706ee/da54501cf3f94803a7082dd03ca6f6ac/FLAGb5ba62041 [2023-11-19 05:12:15,769 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfaff06f-c806-4340-b868-bdeff39d8fd8/bin/utaipan-verify-t7M7D8N6sZ/data/9035706ee/da54501cf3f94803a7082dd03ca6f6ac [2023-11-19 05:12:15,775 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 05:12:15,777 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 05:12:15,780 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 05:12:15,780 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 05:12:15,786 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 05:12:15,787 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:12:15" (1/1) ... [2023-11-19 05:12:15,788 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e0ffb9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:12:15, skipping insertion in model container [2023-11-19 05:12:15,788 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:12:15" (1/1) ... [2023-11-19 05:12:15,886 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 05:12:16,755 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:12:16,777 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-19 05:12:16,799 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 05:12:16,894 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:12:16,919 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 05:12:17,014 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:12:17,225 INFO L206 MainTranslator]: Completed translation [2023-11-19 05:12:17,225 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:12:17 WrapperNode [2023-11-19 05:12:17,226 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 05:12:17,227 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 05:12:17,227 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 05:12:17,227 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 05:12:17,235 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:12:17" (1/1) ... [2023-11-19 05:12:17,297 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:12:17" (1/1) ... [2023-11-19 05:12:17,350 INFO L138 Inliner]: procedures = 486, calls = 47, calls flagged for inlining = 13, calls inlined = 18, statements flattened = 150 [2023-11-19 05:12:17,351 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 05:12:17,352 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 05:12:17,352 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 05:12:17,352 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 05:12:17,363 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:12:17" (1/1) ... [2023-11-19 05:12:17,363 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:12:17" (1/1) ... [2023-11-19 05:12:17,370 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:12:17" (1/1) ... [2023-11-19 05:12:17,371 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:12:17" (1/1) ... [2023-11-19 05:12:17,390 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:12:17" (1/1) ... [2023-11-19 05:12:17,393 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:12:17" (1/1) ... [2023-11-19 05:12:17,401 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:12:17" (1/1) ... [2023-11-19 05:12:17,404 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:12:17" (1/1) ... [2023-11-19 05:12:17,413 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 05:12:17,414 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 05:12:17,414 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 05:12:17,414 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 05:12:17,415 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:12:17" (1/1) ... [2023-11-19 05:12:17,422 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:12:17,439 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfaff06f-c806-4340-b868-bdeff39d8fd8/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:12:17,452 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfaff06f-c806-4340-b868-bdeff39d8fd8/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 05:12:17,476 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfaff06f-c806-4340-b868-bdeff39d8fd8/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 05:12:17,513 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 05:12:17,513 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 05:12:17,513 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2023-11-19 05:12:17,513 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-19 05:12:17,514 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 05:12:17,514 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 05:12:17,514 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 05:12:17,514 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 05:12:17,514 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-19 05:12:17,514 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2023-11-19 05:12:17,515 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2023-11-19 05:12:17,515 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 05:12:17,515 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-19 05:12:17,517 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 05:12:17,912 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 05:12:17,914 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 05:12:18,665 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 05:12:18,676 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 05:12:18,677 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 05:12:18,686 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:12:18 BoogieIcfgContainer [2023-11-19 05:12:18,687 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 05:12:18,690 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 05:12:18,691 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 05:12:18,694 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 05:12:18,695 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:12:15" (1/3) ... [2023-11-19 05:12:18,696 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3843f4f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:12:18, skipping insertion in model container [2023-11-19 05:12:18,697 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:12:17" (2/3) ... [2023-11-19 05:12:18,699 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3843f4f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:12:18, skipping insertion in model container [2023-11-19 05:12:18,699 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:12:18" (3/3) ... [2023-11-19 05:12:18,703 INFO L112 eAbstractionObserver]: Analyzing ICFG race-2_1-container_of.i [2023-11-19 05:12:18,724 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 05:12:18,725 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 45 error locations. [2023-11-19 05:12:18,725 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-19 05:12:18,898 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-19 05:12:18,938 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-11-19 05:12:18,953 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 265 places, 273 transitions, 560 flow [2023-11-19 05:12:18,957 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 265 places, 273 transitions, 560 flow [2023-11-19 05:12:18,958 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 265 places, 273 transitions, 560 flow [2023-11-19 05:12:19,084 INFO L124 PetriNetUnfolderBase]: 18/341 cut-off events. [2023-11-19 05:12:19,084 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-19 05:12:19,094 INFO L83 FinitePrefix]: Finished finitePrefix Result has 350 conditions, 341 events. 18/341 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 913 event pairs, 0 based on Foata normal form. 0/257 useless extension candidates. Maximal degree in co-relation 189. Up to 4 conditions per place. [2023-11-19 05:12:19,103 INFO L119 LiptonReduction]: Number of co-enabled transitions 8556