./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread/twostage_3-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_158b8f32-ba2a-4d7a-9af1-7ab2df6ae12b/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_158b8f32-ba2a-4d7a-9af1-7ab2df6ae12b/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_158b8f32-ba2a-4d7a-9af1-7ab2df6ae12b/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_158b8f32-ba2a-4d7a-9af1-7ab2df6ae12b/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread/twostage_3-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_158b8f32-ba2a-4d7a-9af1-7ab2df6ae12b/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_158b8f32-ba2a-4d7a-9af1-7ab2df6ae12b/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 0db6974abead9f0b145be669e8625acba9e17feac06fbf7c6b45d50c107fdab8 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 05:10:10,546 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 05:10:10,722 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_158b8f32-ba2a-4d7a-9af1-7ab2df6ae12b/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2023-11-19 05:10:10,727 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 05:10:10,728 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 05:10:10,808 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 05:10:10,809 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 05:10:10,810 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 05:10:10,812 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 05:10:10,818 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 05:10:10,819 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 05:10:10,820 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 05:10:10,820 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 05:10:10,823 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 05:10:10,823 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 05:10:10,824 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 05:10:10,824 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 05:10:10,825 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 05:10:10,825 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 05:10:10,826 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 05:10:10,826 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 05:10:10,827 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 05:10:10,828 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 05:10:10,828 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 05:10:10,829 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 05:10:10,830 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 05:10:10,830 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 05:10:10,830 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 05:10:10,831 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 05:10:10,831 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-19 05:10:10,832 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-19 05:10:10,832 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-19 05:10:10,833 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 05:10:10,833 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 05:10:10,833 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 05:10:10,833 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 05:10:10,834 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 05:10:10,834 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 05:10:10,834 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 05:10:10,835 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:10:10,835 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 05:10:10,835 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 05:10:10,836 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 05:10:10,836 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 05:10:10,836 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 05:10:10,836 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 05:10:10,837 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_158b8f32-ba2a-4d7a-9af1-7ab2df6ae12b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_158b8f32-ba2a-4d7a-9af1-7ab2df6ae12b/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0db6974abead9f0b145be669e8625acba9e17feac06fbf7c6b45d50c107fdab8 [2023-11-19 05:10:11,245 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 05:10:11,295 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 05:10:11,298 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 05:10:11,300 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 05:10:11,302 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 05:10:11,304 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_158b8f32-ba2a-4d7a-9af1-7ab2df6ae12b/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/pthread/twostage_3-2.i [2023-11-19 05:10:15,075 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 05:10:15,543 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 05:10:15,545 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_158b8f32-ba2a-4d7a-9af1-7ab2df6ae12b/sv-benchmarks/c/pthread/twostage_3-2.i [2023-11-19 05:10:15,580 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_158b8f32-ba2a-4d7a-9af1-7ab2df6ae12b/bin/utaipan-verify-t7M7D8N6sZ/data/56aeb5bbf/490b97afc00f4cdda4a9eaaeabb5c38a/FLAG7ae8af9fb [2023-11-19 05:10:15,693 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_158b8f32-ba2a-4d7a-9af1-7ab2df6ae12b/bin/utaipan-verify-t7M7D8N6sZ/data/56aeb5bbf/490b97afc00f4cdda4a9eaaeabb5c38a [2023-11-19 05:10:15,697 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 05:10:15,699 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 05:10:15,701 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 05:10:15,701 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 05:10:15,709 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 05:10:15,710 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:10:15" (1/1) ... [2023-11-19 05:10:15,711 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@478573f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:10:15, skipping insertion in model container [2023-11-19 05:10:15,712 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:10:15" (1/1) ... [2023-11-19 05:10:15,790 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 05:10:16,849 WARN L1588 CHandler]: Possible shadowing of function lock [2023-11-19 05:10:16,856 WARN L1588 CHandler]: Possible shadowing of function lock [2023-11-19 05:10:16,861 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:10:16,882 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 05:10:16,883 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@28ec4a81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:10:16, skipping insertion in model container [2023-11-19 05:10:16,883 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 05:10:16,884 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-19 05:10:16,885 INFO L158 Benchmark]: Toolchain (without parser) took 1185.90ms. Allocated memory is still 172.0MB. Free memory was 138.3MB in the beginning and 121.9MB in the end (delta: 16.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-19 05:10:16,886 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 117.4MB. Free memory was 90.3MB in the beginning and 90.2MB in the end (delta: 142.6kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 05:10:16,888 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1182.64ms. Allocated memory is still 172.0MB. Free memory was 138.3MB in the beginning and 121.9MB in the end (delta: 16.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-19 05:10:16,890 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 117.4MB. Free memory was 90.3MB in the beginning and 90.2MB in the end (delta: 142.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1182.64ms. Allocated memory is still 172.0MB. Free memory was 138.3MB in the beginning and 121.9MB in the end (delta: 16.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 1288]: 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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_158b8f32-ba2a-4d7a-9af1-7ab2df6ae12b/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_158b8f32-ba2a-4d7a-9af1-7ab2df6ae12b/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_158b8f32-ba2a-4d7a-9af1-7ab2df6ae12b/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_158b8f32-ba2a-4d7a-9af1-7ab2df6ae12b/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread/twostage_3-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_158b8f32-ba2a-4d7a-9af1-7ab2df6ae12b/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_158b8f32-ba2a-4d7a-9af1-7ab2df6ae12b/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 0db6974abead9f0b145be669e8625acba9e17feac06fbf7c6b45d50c107fdab8 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 05:10:20,133 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 05:10:20,272 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_158b8f32-ba2a-4d7a-9af1-7ab2df6ae12b/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2023-11-19 05:10:20,280 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 05:10:20,280 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 05:10:20,314 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 05:10:20,315 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 05:10:20,316 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 05:10:20,317 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 05:10:20,318 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 05:10:20,319 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 05:10:20,319 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 05:10:20,320 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 05:10:20,321 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 05:10:20,322 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 05:10:20,322 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 05:10:20,323 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 05:10:20,324 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 05:10:20,325 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 05:10:20,325 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 05:10:20,326 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 05:10:20,327 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 05:10:20,327 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 05:10:20,328 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-19 05:10:20,328 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-19 05:10:20,329 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-19 05:10:20,329 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 05:10:20,330 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 05:10:20,330 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 05:10:20,331 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 05:10:20,331 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 05:10:20,332 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 05:10:20,333 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 05:10:20,333 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 05:10:20,334 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 05:10:20,334 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 05:10:20,335 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:10:20,335 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 05:10:20,336 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 05:10:20,336 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-19 05:10:20,337 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 05:10:20,337 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 05:10:20,338 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 05:10:20,338 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_158b8f32-ba2a-4d7a-9af1-7ab2df6ae12b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_158b8f32-ba2a-4d7a-9af1-7ab2df6ae12b/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0db6974abead9f0b145be669e8625acba9e17feac06fbf7c6b45d50c107fdab8 [2023-11-19 05:10:20,901 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 05:10:20,943 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 05:10:20,947 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 05:10:20,948 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 05:10:20,949 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 05:10:20,953 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_158b8f32-ba2a-4d7a-9af1-7ab2df6ae12b/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/pthread/twostage_3-2.i [2023-11-19 05:10:24,735 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 05:10:25,175 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 05:10:25,176 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_158b8f32-ba2a-4d7a-9af1-7ab2df6ae12b/sv-benchmarks/c/pthread/twostage_3-2.i [2023-11-19 05:10:25,221 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_158b8f32-ba2a-4d7a-9af1-7ab2df6ae12b/bin/utaipan-verify-t7M7D8N6sZ/data/faf220e76/8208fb5e0d5c4c65b1af5ad5e250bb92/FLAG13fde460d [2023-11-19 05:10:25,243 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_158b8f32-ba2a-4d7a-9af1-7ab2df6ae12b/bin/utaipan-verify-t7M7D8N6sZ/data/faf220e76/8208fb5e0d5c4c65b1af5ad5e250bb92 [2023-11-19 05:10:25,247 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 05:10:25,249 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 05:10:25,251 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 05:10:25,251 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 05:10:25,260 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 05:10:25,261 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:10:25" (1/1) ... [2023-11-19 05:10:25,263 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1cac9e6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:10:25, skipping insertion in model container [2023-11-19 05:10:25,263 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:10:25" (1/1) ... [2023-11-19 05:10:25,384 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 05:10:26,430 WARN L1588 CHandler]: Possible shadowing of function lock [2023-11-19 05:10:26,432 WARN L1588 CHandler]: Possible shadowing of function lock [2023-11-19 05:10:26,434 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:10:26,464 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-19 05:10:26,483 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 05:10:26,596 WARN L1588 CHandler]: Possible shadowing of function lock [2023-11-19 05:10:26,604 WARN L1588 CHandler]: Possible shadowing of function lock [2023-11-19 05:10:26,607 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:10:26,615 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 05:10:26,712 WARN L1588 CHandler]: Possible shadowing of function lock [2023-11-19 05:10:26,716 WARN L1588 CHandler]: Possible shadowing of function lock [2023-11-19 05:10:26,718 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:10:26,910 WARN L675 CHandler]: The function fprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 05:10:26,919 INFO L206 MainTranslator]: Completed translation [2023-11-19 05:10:26,920 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:10:26 WrapperNode [2023-11-19 05:10:26,920 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 05:10:26,921 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 05:10:26,922 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 05:10:26,922 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 05:10:26,931 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:10:26" (1/1) ... [2023-11-19 05:10:26,977 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:10:26" (1/1) ... [2023-11-19 05:10:27,015 INFO L138 Inliner]: procedures = 378, calls = 61, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 196 [2023-11-19 05:10:27,016 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 05:10:27,016 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 05:10:27,017 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 05:10:27,017 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 05:10:27,032 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:10:26" (1/1) ... [2023-11-19 05:10:27,032 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:10:26" (1/1) ... [2023-11-19 05:10:27,068 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:10:26" (1/1) ... [2023-11-19 05:10:27,069 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:10:26" (1/1) ... [2023-11-19 05:10:27,091 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:10:26" (1/1) ... [2023-11-19 05:10:27,119 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:10:26" (1/1) ... [2023-11-19 05:10:27,123 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:10:26" (1/1) ... [2023-11-19 05:10:27,126 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:10:26" (1/1) ... [2023-11-19 05:10:27,137 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 05:10:27,149 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 05:10:27,150 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 05:10:27,150 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 05:10:27,151 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:10:26" (1/1) ... [2023-11-19 05:10:27,159 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:10:27,172 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_158b8f32-ba2a-4d7a-9af1-7ab2df6ae12b/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:10:27,186 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_158b8f32-ba2a-4d7a-9af1-7ab2df6ae12b/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 05:10:27,189 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_158b8f32-ba2a-4d7a-9af1-7ab2df6ae12b/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 05:10:27,226 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-19 05:10:27,226 INFO L130 BoogieDeclarations]: Found specification of procedure funcA [2023-11-19 05:10:27,226 INFO L138 BoogieDeclarations]: Found implementation of procedure funcA [2023-11-19 05:10:27,226 INFO L130 BoogieDeclarations]: Found specification of procedure funcB [2023-11-19 05:10:27,227 INFO L138 BoogieDeclarations]: Found implementation of procedure funcB [2023-11-19 05:10:27,227 INFO L130 BoogieDeclarations]: Found specification of procedure fprintf [2023-11-19 05:10:27,227 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 05:10:27,227 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 05:10:27,227 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 05:10:27,228 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-19 05:10:27,228 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 05:10:27,228 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2023-11-19 05:10:27,229 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-19 05:10:27,230 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 05:10:27,230 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 05:10:27,230 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 05:10:27,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 05:10:27,232 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 05:10:27,548 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 05:10:27,551 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 05:10:28,431 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 05:10:28,445 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 05:10:28,445 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-19 05:10:28,452 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:10:28 BoogieIcfgContainer [2023-11-19 05:10:28,452 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 05:10:28,455 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 05:10:28,455 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 05:10:28,459 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 05:10:28,459 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:10:25" (1/3) ... [2023-11-19 05:10:28,460 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14949473 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:10:28, skipping insertion in model container [2023-11-19 05:10:28,461 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:10:26" (2/3) ... [2023-11-19 05:10:28,461 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14949473 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:10:28, skipping insertion in model container [2023-11-19 05:10:28,461 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:10:28" (3/3) ... [2023-11-19 05:10:28,463 INFO L112 eAbstractionObserver]: Analyzing ICFG twostage_3-2.i [2023-11-19 05:10:28,487 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 05:10:28,487 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 30 error locations. [2023-11-19 05:10:28,488 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-19 05:10:28,664 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2023-11-19 05:10:28,716 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-11-19 05:10:28,743 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 241 places, 255 transitions, 530 flow [2023-11-19 05:10:28,749 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 241 places, 255 transitions, 530 flow [2023-11-19 05:10:28,751 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 241 places, 255 transitions, 530 flow [2023-11-19 05:10:28,965 INFO L124 PetriNetUnfolderBase]: 41/508 cut-off events. [2023-11-19 05:10:28,965 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2023-11-19 05:10:28,981 INFO L83 FinitePrefix]: Finished finitePrefix Result has 525 conditions, 508 events. 41/508 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 2223 event pairs, 0 based on Foata normal form. 0/387 useless extension candidates. Maximal degree in co-relation 275. Up to 8 conditions per place. [2023-11-19 05:10:28,996 INFO L119 LiptonReduction]: Number of co-enabled transitions 9686