./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread-complex/bounded_buffer.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version cf1a7837 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_6347e4d8-f574-4f9a-9c58-f452fd4ce9b7/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6347e4d8-f574-4f9a-9c58-f452fd4ce9b7/bin/utaipan-verify-NcY6lQBIFX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6347e4d8-f574-4f9a-9c58-f452fd4ce9b7/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6347e4d8-f574-4f9a-9c58-f452fd4ce9b7/bin/utaipan-verify-NcY6lQBIFX/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-complex/bounded_buffer.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6347e4d8-f574-4f9a-9c58-f452fd4ce9b7/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6347e4d8-f574-4f9a-9c58-f452fd4ce9b7/bin/utaipan-verify-NcY6lQBIFX --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6780d9b269575eab8bb01b5a192a21fa771f6fcc4c495cab5abe1df10d7681d5 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:15:16,868 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:15:16,985 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6347e4d8-f574-4f9a-9c58-f452fd4ce9b7/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2023-11-12 00:15:16,992 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:15:16,993 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:15:17,021 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:15:17,022 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:15:17,022 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:15:17,023 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:15:17,024 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:15:17,028 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:15:17,029 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:15:17,030 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:15:17,034 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 00:15:17,036 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:15:17,036 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:15:17,037 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 00:15:17,037 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 00:15:17,038 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:15:17,038 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 00:15:17,039 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 00:15:17,039 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 00:15:17,040 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 00:15:17,041 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 00:15:17,041 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:15:17,042 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 00:15:17,042 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:15:17,043 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 00:15:17,043 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:15:17,044 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-12 00:15:17,045 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-12 00:15:17,045 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-12 00:15:17,046 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:15:17,046 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-12 00:15:17,046 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 00:15:17,046 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 00:15:17,047 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:15:17,047 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:15:17,047 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:15:17,047 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:15:17,048 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:15:17,048 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:15:17,048 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 00:15:17,048 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 00:15:17,049 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:15:17,049 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:15:17,049 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_6347e4d8-f574-4f9a-9c58-f452fd4ce9b7/bin/utaipan-verify-NcY6lQBIFX/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6347e4d8-f574-4f9a-9c58-f452fd4ce9b7/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6780d9b269575eab8bb01b5a192a21fa771f6fcc4c495cab5abe1df10d7681d5 [2023-11-12 00:15:17,325 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:15:17,357 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:15:17,360 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:15:17,361 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:15:17,363 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:15:17,364 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6347e4d8-f574-4f9a-9c58-f452fd4ce9b7/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/pthread-complex/bounded_buffer.i [2023-11-12 00:15:20,396 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:15:20,752 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:15:20,753 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6347e4d8-f574-4f9a-9c58-f452fd4ce9b7/sv-benchmarks/c/pthread-complex/bounded_buffer.i [2023-11-12 00:15:20,785 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6347e4d8-f574-4f9a-9c58-f452fd4ce9b7/bin/utaipan-verify-NcY6lQBIFX/data/b0702e972/47f8bc7a00ef40d1ae88902fd544d47b/FLAGdbc79687b [2023-11-12 00:15:20,800 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6347e4d8-f574-4f9a-9c58-f452fd4ce9b7/bin/utaipan-verify-NcY6lQBIFX/data/b0702e972/47f8bc7a00ef40d1ae88902fd544d47b [2023-11-12 00:15:20,803 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:15:20,808 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:15:20,811 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:15:20,811 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:15:20,821 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:15:20,822 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:15:20" (1/1) ... [2023-11-12 00:15:20,823 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e63aa7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:15:20, skipping insertion in model container [2023-11-12 00:15:20,823 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:15:20" (1/1) ... [2023-11-12 00:15:20,902 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:15:21,768 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:15:21,786 ERROR L324 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2023-11-12 00:15:21,787 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@34003789 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:15:21, skipping insertion in model container [2023-11-12 00:15:21,787 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:15:21,789 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-12 00:15:21,791 INFO L158 Benchmark]: Toolchain (without parser) took 983.93ms. Allocated memory is still 163.6MB. Free memory was 115.4MB in the beginning and 95.3MB in the end (delta: 20.1MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-12 00:15:21,792 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 111.1MB. Free memory is still 63.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:15:21,793 INFO L158 Benchmark]: CACSL2BoogieTranslator took 978.46ms. Allocated memory is still 163.6MB. Free memory was 115.4MB in the beginning and 95.3MB in the end (delta: 20.1MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-12 00:15:21,795 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 111.1MB. Free memory is still 63.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 978.46ms. Allocated memory is still 163.6MB. Free memory was 115.4MB in the beginning and 95.3MB in the end (delta: 20.1MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 1514]: 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_6347e4d8-f574-4f9a-9c58-f452fd4ce9b7/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6347e4d8-f574-4f9a-9c58-f452fd4ce9b7/bin/utaipan-verify-NcY6lQBIFX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6347e4d8-f574-4f9a-9c58-f452fd4ce9b7/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6347e4d8-f574-4f9a-9c58-f452fd4ce9b7/bin/utaipan-verify-NcY6lQBIFX/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-complex/bounded_buffer.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6347e4d8-f574-4f9a-9c58-f452fd4ce9b7/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6347e4d8-f574-4f9a-9c58-f452fd4ce9b7/bin/utaipan-verify-NcY6lQBIFX --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6780d9b269575eab8bb01b5a192a21fa771f6fcc4c495cab5abe1df10d7681d5 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:15:24,274 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:15:24,411 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6347e4d8-f574-4f9a-9c58-f452fd4ce9b7/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2023-11-12 00:15:24,419 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:15:24,420 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:15:24,462 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:15:24,463 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:15:24,464 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:15:24,465 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:15:24,470 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:15:24,470 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:15:24,471 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:15:24,471 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:15:24,473 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:15:24,473 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:15:24,474 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:15:24,475 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 00:15:24,475 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 00:15:24,476 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:15:24,477 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 00:15:24,478 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:15:24,478 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 00:15:24,479 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:15:24,479 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-12 00:15:24,479 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-12 00:15:24,480 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-12 00:15:24,480 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:15:24,481 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-12 00:15:24,481 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-12 00:15:24,481 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-12 00:15:24,483 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 00:15:24,483 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 00:15:24,483 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:15:24,484 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:15:24,484 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 00:15:24,484 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:15:24,485 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:15:24,486 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:15:24,486 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:15:24,486 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-12 00:15:24,486 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-12 00:15:24,487 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:15:24,487 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:15:24,487 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_6347e4d8-f574-4f9a-9c58-f452fd4ce9b7/bin/utaipan-verify-NcY6lQBIFX/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6347e4d8-f574-4f9a-9c58-f452fd4ce9b7/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6780d9b269575eab8bb01b5a192a21fa771f6fcc4c495cab5abe1df10d7681d5 [2023-11-12 00:15:24,887 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:15:24,920 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:15:24,924 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:15:24,925 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:15:24,926 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:15:24,927 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6347e4d8-f574-4f9a-9c58-f452fd4ce9b7/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/pthread-complex/bounded_buffer.i [2023-11-12 00:15:28,054 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:15:28,483 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:15:28,484 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6347e4d8-f574-4f9a-9c58-f452fd4ce9b7/sv-benchmarks/c/pthread-complex/bounded_buffer.i [2023-11-12 00:15:28,509 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6347e4d8-f574-4f9a-9c58-f452fd4ce9b7/bin/utaipan-verify-NcY6lQBIFX/data/de6945751/9301b260171a4df68fb60b2e81e9ac82/FLAG78f654a15 [2023-11-12 00:15:28,524 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6347e4d8-f574-4f9a-9c58-f452fd4ce9b7/bin/utaipan-verify-NcY6lQBIFX/data/de6945751/9301b260171a4df68fb60b2e81e9ac82 [2023-11-12 00:15:28,527 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:15:28,529 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:15:28,530 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:15:28,530 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:15:28,536 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:15:28,537 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:15:28" (1/1) ... [2023-11-12 00:15:28,538 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@684c37ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:15:28, skipping insertion in model container [2023-11-12 00:15:28,538 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:15:28" (1/1) ... [2023-11-12 00:15:28,610 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:15:29,481 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:15:29,516 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-12 00:15:29,584 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:15:29,690 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:15:29,710 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:15:29,805 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:15:29,997 WARN L672 CHandler]: The function fflush is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:15:30,006 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:15:30,007 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:15:30 WrapperNode [2023-11-12 00:15:30,007 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:15:30,009 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:15:30,009 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:15:30,009 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:15:30,017 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:15:30" (1/1) ... [2023-11-12 00:15:30,084 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:15:30" (1/1) ... [2023-11-12 00:15:30,154 INFO L138 Inliner]: procedures = 431, calls = 127, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 467 [2023-11-12 00:15:30,160 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:15:30,161 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:15:30,162 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:15:30,162 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:15:30,173 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:15:30" (1/1) ... [2023-11-12 00:15:30,174 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:15:30" (1/1) ... [2023-11-12 00:15:30,181 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:15:30" (1/1) ... [2023-11-12 00:15:30,181 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:15:30" (1/1) ... [2023-11-12 00:15:30,228 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:15:30" (1/1) ... [2023-11-12 00:15:30,235 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:15:30" (1/1) ... [2023-11-12 00:15:30,239 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:15:30" (1/1) ... [2023-11-12 00:15:30,243 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:15:30" (1/1) ... [2023-11-12 00:15:30,251 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:15:30,252 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:15:30,252 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:15:30,252 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:15:30,253 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:15:30" (1/1) ... [2023-11-12 00:15:30,260 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:15:30,279 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6347e4d8-f574-4f9a-9c58-f452fd4ce9b7/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:15:30,311 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6347e4d8-f574-4f9a-9c58-f452fd4ce9b7/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:15:30,344 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6347e4d8-f574-4f9a-9c58-f452fd4ce9b7/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:15:30,371 INFO L130 BoogieDeclarations]: Found specification of procedure producer_routine [2023-11-12 00:15:30,372 INFO L138 BoogieDeclarations]: Found implementation of procedure producer_routine [2023-11-12 00:15:30,372 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 00:15:30,372 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-12 00:15:30,372 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-12 00:15:30,372 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-12 00:15:30,373 INFO L130 BoogieDeclarations]: Found specification of procedure fflush [2023-11-12 00:15:30,373 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:15:30,375 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-12 00:15:30,376 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:15:30,376 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:15:30,376 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-12 00:15:30,376 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 00:15:30,376 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-12 00:15:30,376 INFO L130 BoogieDeclarations]: Found specification of procedure consumer_routine [2023-11-12 00:15:30,377 INFO L138 BoogieDeclarations]: Found implementation of procedure consumer_routine [2023-11-12 00:15:30,377 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-12 00:15:30,379 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-12 00:15:30,683 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:15:30,689 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:15:32,887 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:15:32,898 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:15:32,899 INFO L302 CfgBuilder]: Removed 11 assume(true) statements. [2023-11-12 00:15:32,902 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:15:32 BoogieIcfgContainer [2023-11-12 00:15:32,902 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:15:32,905 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:15:32,905 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:15:32,908 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:15:32,908 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:15:28" (1/3) ... [2023-11-12 00:15:32,909 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@523d6b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:15:32, skipping insertion in model container [2023-11-12 00:15:32,909 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:15:30" (2/3) ... [2023-11-12 00:15:32,910 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@523d6b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:15:32, skipping insertion in model container [2023-11-12 00:15:32,910 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:15:32" (3/3) ... [2023-11-12 00:15:32,911 INFO L112 eAbstractionObserver]: Analyzing ICFG bounded_buffer.i [2023-11-12 00:15:32,932 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:15:32,933 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 164 error locations. [2023-11-12 00:15:32,933 INFO L521 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-12 00:15:33,264 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2023-11-12 00:15:33,329 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-11-12 00:15:33,351 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 607 places, 652 transitions, 1324 flow [2023-11-12 00:15:33,354 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 607 places, 652 transitions, 1324 flow [2023-11-12 00:15:33,356 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 607 places, 652 transitions, 1324 flow [2023-11-12 00:15:34,014 INFO L124 PetriNetUnfolderBase]: 111/1461 cut-off events. [2023-11-12 00:15:34,014 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2023-11-12 00:15:34,063 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1478 conditions, 1461 events. 111/1461 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 10443 event pairs, 0 based on Foata normal form. 0/966 useless extension candidates. Maximal degree in co-relation 765. Up to 16 conditions per place. [2023-11-12 00:15:34,216 INFO L119 LiptonReduction]: Number of co-enabled transitions 201564