./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/weaver/popl20-commit-2.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version cf1a7837 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_e1bb09c8-ad49-4a40-8c27-4e29d21872a3/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bb09c8-ad49-4a40-8c27-4e29d21872a3/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_e1bb09c8-ad49-4a40-8c27-4e29d21872a3/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bb09c8-ad49-4a40-8c27-4e29d21872a3/bin/utaipan-verify-NcY6lQBIFX/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/weaver/popl20-commit-2.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bb09c8-ad49-4a40-8c27-4e29d21872a3/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_e1bb09c8-ad49-4a40-8c27-4e29d21872a3/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 ec2334e7e9ec2636c6abf161aed91fff94fbff3709d38c7edad92256c3b5dc81 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:46:47,520 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:46:47,634 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bb09c8-ad49-4a40-8c27-4e29d21872a3/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2023-11-12 00:46:47,641 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:46:47,642 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:46:47,684 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:46:47,685 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:46:47,686 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:46:47,687 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:46:47,692 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:46:47,692 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:46:47,693 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:46:47,693 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:46:47,695 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 00:46:47,695 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:46:47,696 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:46:47,696 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 00:46:47,696 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 00:46:47,697 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:46:47,697 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 00:46:47,698 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 00:46:47,698 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 00:46:47,700 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 00:46:47,701 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 00:46:47,701 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:46:47,702 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 00:46:47,702 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:46:47,703 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 00:46:47,703 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:46:47,703 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-12 00:46:47,705 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-12 00:46:47,705 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-12 00:46:47,705 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:46:47,705 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-12 00:46:47,705 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 00:46:47,706 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 00:46:47,706 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:46:47,706 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:46:47,706 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:46:47,707 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:46:47,707 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:46:47,707 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:46:47,708 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 00:46:47,708 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 00:46:47,708 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:46:47,709 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:46:47,709 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_e1bb09c8-ad49-4a40-8c27-4e29d21872a3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bb09c8-ad49-4a40-8c27-4e29d21872a3/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ec2334e7e9ec2636c6abf161aed91fff94fbff3709d38c7edad92256c3b5dc81 [2023-11-12 00:46:48,052 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:46:48,076 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:46:48,081 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:46:48,082 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:46:48,084 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:46:48,085 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bb09c8-ad49-4a40-8c27-4e29d21872a3/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/weaver/popl20-commit-2.wvr.c [2023-11-12 00:46:51,155 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:46:51,434 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:46:51,434 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bb09c8-ad49-4a40-8c27-4e29d21872a3/sv-benchmarks/c/weaver/popl20-commit-2.wvr.c [2023-11-12 00:46:51,448 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bb09c8-ad49-4a40-8c27-4e29d21872a3/bin/utaipan-verify-NcY6lQBIFX/data/b7adcea3e/b075c27775a642c7b09898b9961b79a9/FLAG5d46e2bd8 [2023-11-12 00:46:51,464 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bb09c8-ad49-4a40-8c27-4e29d21872a3/bin/utaipan-verify-NcY6lQBIFX/data/b7adcea3e/b075c27775a642c7b09898b9961b79a9 [2023-11-12 00:46:51,470 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:46:51,472 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:46:51,478 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:46:51,478 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:46:51,484 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:46:51,484 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:46:51" (1/1) ... [2023-11-12 00:46:51,486 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f471ae5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:46:51, skipping insertion in model container [2023-11-12 00:46:51,486 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:46:51" (1/1) ... [2023-11-12 00:46:51,545 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:46:51,801 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:46:51,815 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 00:46:51,815 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@5f30b1a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:46:51, skipping insertion in model container [2023-11-12 00:46:51,816 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:46:51,816 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-12 00:46:51,818 INFO L158 Benchmark]: Toolchain (without parser) took 344.95ms. Allocated memory is still 178.3MB. Free memory was 137.3MB in the beginning and 142.3MB in the end (delta: -5.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-12 00:46:51,818 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 121.6MB. Free memory is still 90.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:46:51,819 INFO L158 Benchmark]: CACSL2BoogieTranslator took 338.07ms. Allocated memory is still 178.3MB. Free memory was 137.3MB in the beginning and 142.3MB in the end (delta: -5.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-12 00:46:51,821 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 121.6MB. Free memory is still 90.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 338.07ms. Allocated memory is still 178.3MB. Free memory was 137.3MB in the beginning and 142.3MB in the end (delta: -5.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 195]: 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_e1bb09c8-ad49-4a40-8c27-4e29d21872a3/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bb09c8-ad49-4a40-8c27-4e29d21872a3/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_e1bb09c8-ad49-4a40-8c27-4e29d21872a3/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bb09c8-ad49-4a40-8c27-4e29d21872a3/bin/utaipan-verify-NcY6lQBIFX/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/weaver/popl20-commit-2.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bb09c8-ad49-4a40-8c27-4e29d21872a3/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_e1bb09c8-ad49-4a40-8c27-4e29d21872a3/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 ec2334e7e9ec2636c6abf161aed91fff94fbff3709d38c7edad92256c3b5dc81 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:46:54,317 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:46:54,403 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bb09c8-ad49-4a40-8c27-4e29d21872a3/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2023-11-12 00:46:54,409 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:46:54,409 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:46:54,440 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:46:54,441 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:46:54,442 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:46:54,443 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:46:54,443 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:46:54,444 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:46:54,444 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:46:54,445 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:46:54,446 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:46:54,446 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:46:54,447 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:46:54,448 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 00:46:54,448 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 00:46:54,449 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:46:54,449 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 00:46:54,450 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:46:54,450 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 00:46:54,451 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:46:54,451 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-12 00:46:54,452 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-12 00:46:54,452 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-12 00:46:54,452 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:46:54,453 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-12 00:46:54,453 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-12 00:46:54,454 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-12 00:46:54,454 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 00:46:54,455 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 00:46:54,455 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:46:54,455 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:46:54,455 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 00:46:54,456 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:46:54,456 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:46:54,456 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:46:54,457 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:46:54,457 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-12 00:46:54,457 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-12 00:46:54,458 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:46:54,458 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:46:54,458 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_e1bb09c8-ad49-4a40-8c27-4e29d21872a3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bb09c8-ad49-4a40-8c27-4e29d21872a3/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ec2334e7e9ec2636c6abf161aed91fff94fbff3709d38c7edad92256c3b5dc81 [2023-11-12 00:46:54,776 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:46:54,811 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:46:54,813 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:46:54,815 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:46:54,815 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:46:54,817 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bb09c8-ad49-4a40-8c27-4e29d21872a3/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/weaver/popl20-commit-2.wvr.c [2023-11-12 00:46:57,952 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:46:58,212 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:46:58,212 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bb09c8-ad49-4a40-8c27-4e29d21872a3/sv-benchmarks/c/weaver/popl20-commit-2.wvr.c [2023-11-12 00:46:58,224 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bb09c8-ad49-4a40-8c27-4e29d21872a3/bin/utaipan-verify-NcY6lQBIFX/data/0d0553d87/164370d3287343b59ac5948adc92051c/FLAG5eb1d22d0 [2023-11-12 00:46:58,258 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bb09c8-ad49-4a40-8c27-4e29d21872a3/bin/utaipan-verify-NcY6lQBIFX/data/0d0553d87/164370d3287343b59ac5948adc92051c [2023-11-12 00:46:58,261 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:46:58,263 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:46:58,264 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:46:58,265 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:46:58,271 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:46:58,272 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:46:58" (1/1) ... [2023-11-12 00:46:58,273 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65a4a3bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:46:58, skipping insertion in model container [2023-11-12 00:46:58,273 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:46:58" (1/1) ... [2023-11-12 00:46:58,305 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:46:58,612 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:46:58,637 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-12 00:46:58,651 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:46:58,702 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:46:58,721 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:46:58,769 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:46:58,782 WARN L672 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:46:58,783 WARN L672 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:46:58,791 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:46:58,792 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:46:58 WrapperNode [2023-11-12 00:46:58,792 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:46:58,794 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:46:58,795 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:46:58,796 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:46:58,803 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:46:58" (1/1) ... [2023-11-12 00:46:58,834 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:46:58" (1/1) ... [2023-11-12 00:46:58,895 INFO L138 Inliner]: procedures = 28, calls = 94, calls flagged for inlining = 28, calls inlined = 34, statements flattened = 469 [2023-11-12 00:46:58,902 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:46:58,903 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:46:58,903 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:46:58,904 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:46:58,913 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:46:58" (1/1) ... [2023-11-12 00:46:58,914 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:46:58" (1/1) ... [2023-11-12 00:46:58,937 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:46:58" (1/1) ... [2023-11-12 00:46:58,948 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:46:58" (1/1) ... [2023-11-12 00:46:58,966 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:46:58" (1/1) ... [2023-11-12 00:46:58,973 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:46:58" (1/1) ... [2023-11-12 00:46:58,993 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:46:58" (1/1) ... [2023-11-12 00:46:58,997 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:46:58" (1/1) ... [2023-11-12 00:46:59,002 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:46:59,003 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:46:59,015 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:46:59,015 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:46:59,016 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:46:58" (1/1) ... [2023-11-12 00:46:59,023 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:46:59,043 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bb09c8-ad49-4a40-8c27-4e29d21872a3/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:46:59,058 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bb09c8-ad49-4a40-8c27-4e29d21872a3/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:46:59,085 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bb09c8-ad49-4a40-8c27-4e29d21872a3/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:46:59,107 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:46:59,108 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-12 00:46:59,108 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 00:46:59,108 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-12 00:46:59,108 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-12 00:46:59,108 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-12 00:46:59,109 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-12 00:46:59,110 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-12 00:46:59,111 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-12 00:46:59,111 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-12 00:46:59,111 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2023-11-12 00:46:59,112 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2023-11-12 00:46:59,112 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-12 00:46:59,112 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-12 00:46:59,112 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-12 00:46:59,112 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:46:59,113 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:46:59,113 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 00:46:59,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-12 00:46:59,116 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 00:46:59,331 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:46:59,334 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:47:00,442 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:47:00,936 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:47:00,937 INFO L302 CfgBuilder]: Removed 8 assume(true) statements. [2023-11-12 00:47:00,941 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:47:00 BoogieIcfgContainer [2023-11-12 00:47:00,941 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:47:00,946 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:47:00,946 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:47:00,949 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:47:00,950 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:46:58" (1/3) ... [2023-11-12 00:47:00,951 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fa6f92c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:47:00, skipping insertion in model container [2023-11-12 00:47:00,951 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:46:58" (2/3) ... [2023-11-12 00:47:00,953 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fa6f92c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:47:00, skipping insertion in model container [2023-11-12 00:47:00,953 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:47:00" (3/3) ... [2023-11-12 00:47:00,955 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-commit-2.wvr.c [2023-11-12 00:47:00,977 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:47:00,977 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 50 error locations. [2023-11-12 00:47:00,977 INFO L521 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-12 00:47:01,204 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2023-11-12 00:47:01,265 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-11-12 00:47:01,287 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 379 places, 391 transitions, 810 flow [2023-11-12 00:47:01,292 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 379 places, 391 transitions, 810 flow [2023-11-12 00:47:01,294 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 379 places, 391 transitions, 810 flow [2023-11-12 00:47:01,528 INFO L124 PetriNetUnfolderBase]: 25/387 cut-off events. [2023-11-12 00:47:01,528 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-11-12 00:47:01,538 INFO L83 FinitePrefix]: Finished finitePrefix Result has 404 conditions, 387 events. 25/387 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 419 event pairs, 0 based on Foata normal form. 0/312 useless extension candidates. Maximal degree in co-relation 327. Up to 2 conditions per place. [2023-11-12 00:47:01,546 INFO L119 LiptonReduction]: Number of co-enabled transitions 7416