./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/weaver/popl20-more-buffer-mult.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fdb0770-f28f-417d-aa53-5e81a6947eaf/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fdb0770-f28f-417d-aa53-5e81a6947eaf/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_9fdb0770-f28f-417d-aa53-5e81a6947eaf/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fdb0770-f28f-417d-aa53-5e81a6947eaf/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/weaver/popl20-more-buffer-mult.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fdb0770-f28f-417d-aa53-5e81a6947eaf/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_9fdb0770-f28f-417d-aa53-5e81a6947eaf/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 e5124dd4a5a155d8a4e322a35428820633f9eccdd993e14120e650d1ba1fbebe --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:11:04,806 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:11:04,891 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fdb0770-f28f-417d-aa53-5e81a6947eaf/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2023-11-19 04:11:04,899 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:11:04,899 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 04:11:04,932 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:11:04,933 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 04:11:04,934 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 04:11:04,935 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:11:04,935 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 04:11:04,936 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 04:11:04,937 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 04:11:04,937 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 04:11:04,938 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 04:11:04,939 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 04:11:04,940 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 04:11:04,940 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 04:11:04,941 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 04:11:04,942 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 04:11:04,943 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 04:11:04,943 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 04:11:04,944 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 04:11:04,945 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 04:11:04,946 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 04:11:04,947 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:11:04,947 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 04:11:04,948 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 04:11:04,949 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 04:11:04,949 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:11:04,950 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-19 04:11:04,950 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-19 04:11:04,951 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-19 04:11:04,951 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:11:04,952 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 04:11:04,952 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 04:11:04,953 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 04:11:04,953 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:11:04,954 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:11:04,954 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 04:11:04,954 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:11:04,955 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:11:04,955 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:11:04,956 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 04:11:04,956 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 04:11:04,957 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 04:11:04,957 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 04:11:04,957 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_9fdb0770-f28f-417d-aa53-5e81a6947eaf/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fdb0770-f28f-417d-aa53-5e81a6947eaf/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e5124dd4a5a155d8a4e322a35428820633f9eccdd993e14120e650d1ba1fbebe [2023-11-19 04:11:05,264 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:11:05,309 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:11:05,312 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:11:05,314 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:11:05,316 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:11:05,318 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fdb0770-f28f-417d-aa53-5e81a6947eaf/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/weaver/popl20-more-buffer-mult.wvr.c [2023-11-19 04:11:09,150 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:11:09,404 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:11:09,405 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fdb0770-f28f-417d-aa53-5e81a6947eaf/sv-benchmarks/c/weaver/popl20-more-buffer-mult.wvr.c [2023-11-19 04:11:09,417 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fdb0770-f28f-417d-aa53-5e81a6947eaf/bin/utaipan-verify-t7M7D8N6sZ/data/743cee58f/c681502e96fa4f4e9f39fbd13740811f/FLAG0d168909f [2023-11-19 04:11:09,435 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fdb0770-f28f-417d-aa53-5e81a6947eaf/bin/utaipan-verify-t7M7D8N6sZ/data/743cee58f/c681502e96fa4f4e9f39fbd13740811f [2023-11-19 04:11:09,439 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:11:09,441 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:11:09,442 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:11:09,443 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:11:09,450 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:11:09,451 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:11:09" (1/1) ... [2023-11-19 04:11:09,452 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1fdfaa4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:11:09, skipping insertion in model container [2023-11-19 04:11:09,453 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:11:09" (1/1) ... [2023-11-19 04:11:09,490 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:11:09,759 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:11:09,779 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 04:11:09,780 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@5cc8614d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:11:09, skipping insertion in model container [2023-11-19 04:11:09,781 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:11:09,781 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-19 04:11:09,784 INFO L158 Benchmark]: Toolchain (without parser) took 341.99ms. Allocated memory is still 127.9MB. Free memory was 88.3MB in the beginning and 77.8MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 04:11:09,784 INFO L158 Benchmark]: CDTParser took 0.42ms. Allocated memory is still 96.5MB. Free memory is still 48.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:11:09,786 INFO L158 Benchmark]: CACSL2BoogieTranslator took 338.82ms. Allocated memory is still 127.9MB. Free memory was 88.3MB in the beginning and 77.8MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 04:11:09,788 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.42ms. Allocated memory is still 96.5MB. Free memory is still 48.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 338.82ms. Allocated memory is still 127.9MB. Free memory was 88.3MB in the beginning and 77.8MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 161]: 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_9fdb0770-f28f-417d-aa53-5e81a6947eaf/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fdb0770-f28f-417d-aa53-5e81a6947eaf/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_9fdb0770-f28f-417d-aa53-5e81a6947eaf/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fdb0770-f28f-417d-aa53-5e81a6947eaf/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/weaver/popl20-more-buffer-mult.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fdb0770-f28f-417d-aa53-5e81a6947eaf/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_9fdb0770-f28f-417d-aa53-5e81a6947eaf/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 e5124dd4a5a155d8a4e322a35428820633f9eccdd993e14120e650d1ba1fbebe --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:11:12,908 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:11:13,064 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fdb0770-f28f-417d-aa53-5e81a6947eaf/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2023-11-19 04:11:13,074 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:11:13,075 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 04:11:13,144 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:11:13,145 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 04:11:13,146 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 04:11:13,147 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:11:13,154 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 04:11:13,154 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 04:11:13,155 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 04:11:13,156 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 04:11:13,158 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 04:11:13,158 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 04:11:13,159 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 04:11:13,160 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 04:11:13,160 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 04:11:13,162 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:11:13,163 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 04:11:13,164 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 04:11:13,164 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 04:11:13,165 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:11:13,165 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-19 04:11:13,166 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-19 04:11:13,167 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-19 04:11:13,167 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:11:13,168 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 04:11:13,168 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 04:11:13,169 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 04:11:13,171 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 04:11:13,171 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 04:11:13,171 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:11:13,172 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:11:13,172 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 04:11:13,173 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 04:11:13,174 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:11:13,174 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:11:13,175 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:11:13,175 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-19 04:11:13,175 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 04:11:13,176 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 04:11:13,176 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 04:11:13,176 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_9fdb0770-f28f-417d-aa53-5e81a6947eaf/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fdb0770-f28f-417d-aa53-5e81a6947eaf/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e5124dd4a5a155d8a4e322a35428820633f9eccdd993e14120e650d1ba1fbebe [2023-11-19 04:11:13,739 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:11:13,777 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:11:13,781 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:11:13,783 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:11:13,783 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:11:13,785 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fdb0770-f28f-417d-aa53-5e81a6947eaf/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/weaver/popl20-more-buffer-mult.wvr.c [2023-11-19 04:11:17,416 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:11:17,806 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:11:17,806 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fdb0770-f28f-417d-aa53-5e81a6947eaf/sv-benchmarks/c/weaver/popl20-more-buffer-mult.wvr.c [2023-11-19 04:11:17,818 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fdb0770-f28f-417d-aa53-5e81a6947eaf/bin/utaipan-verify-t7M7D8N6sZ/data/5636b2db4/baf1940862f847038f64f10700728bfc/FLAG68ace02ab [2023-11-19 04:11:17,837 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fdb0770-f28f-417d-aa53-5e81a6947eaf/bin/utaipan-verify-t7M7D8N6sZ/data/5636b2db4/baf1940862f847038f64f10700728bfc [2023-11-19 04:11:17,840 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:11:17,842 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:11:17,844 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:11:17,845 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:11:17,851 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:11:17,856 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:11:17" (1/1) ... [2023-11-19 04:11:17,858 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@226938e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:11:17, skipping insertion in model container [2023-11-19 04:11:17,858 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:11:17" (1/1) ... [2023-11-19 04:11:17,915 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:11:18,220 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:11:18,249 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-19 04:11:18,259 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:11:18,326 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:11:18,337 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:11:18,416 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:11:18,445 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:11:18,446 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:11:18,455 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:11:18,456 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:11:18 WrapperNode [2023-11-19 04:11:18,456 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:11:18,458 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:11:18,459 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:11:18,460 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:11:18,469 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:11:18" (1/1) ... [2023-11-19 04:11:18,505 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:11:18" (1/1) ... [2023-11-19 04:11:18,571 INFO L138 Inliner]: procedures = 29, calls = 81, calls flagged for inlining = 19, calls inlined = 23, statements flattened = 312 [2023-11-19 04:11:18,574 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:11:18,575 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:11:18,576 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:11:18,577 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:11:18,589 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:11:18" (1/1) ... [2023-11-19 04:11:18,589 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:11:18" (1/1) ... [2023-11-19 04:11:18,616 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:11:18" (1/1) ... [2023-11-19 04:11:18,617 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:11:18" (1/1) ... [2023-11-19 04:11:18,650 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:11:18" (1/1) ... [2023-11-19 04:11:18,667 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:11:18" (1/1) ... [2023-11-19 04:11:18,670 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:11:18" (1/1) ... [2023-11-19 04:11:18,674 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:11:18" (1/1) ... [2023-11-19 04:11:18,688 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:11:18,689 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:11:18,694 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:11:18,694 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:11:18,695 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:11:18" (1/1) ... [2023-11-19 04:11:18,703 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:11:18,734 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fdb0770-f28f-417d-aa53-5e81a6947eaf/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:11:18,752 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fdb0770-f28f-417d-aa53-5e81a6947eaf/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 04:11:18,781 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fdb0770-f28f-417d-aa53-5e81a6947eaf/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 04:11:18,815 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:11:18,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 04:11:18,816 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 04:11:18,816 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-19 04:11:18,817 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-19 04:11:18,817 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-19 04:11:18,817 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-19 04:11:18,819 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-19 04:11:18,820 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-19 04:11:18,820 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-19 04:11:18,831 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2023-11-19 04:11:18,831 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2023-11-19 04:11:18,831 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-19 04:11:18,831 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-19 04:11:18,831 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 04:11:18,831 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:11:18,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:11:18,832 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 04:11:18,833 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-19 04:11:18,835 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 04:11:19,084 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:11:19,087 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:11:20,061 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:11:20,524 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:11:20,525 INFO L302 CfgBuilder]: Removed 6 assume(true) statements. [2023-11-19 04:11:20,536 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:11:20 BoogieIcfgContainer [2023-11-19 04:11:20,536 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:11:20,539 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 04:11:20,539 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 04:11:20,543 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 04:11:20,543 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 04:11:17" (1/3) ... [2023-11-19 04:11:20,544 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b0a9ca8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:11:20, skipping insertion in model container [2023-11-19 04:11:20,544 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:11:18" (2/3) ... [2023-11-19 04:11:20,545 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b0a9ca8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:11:20, skipping insertion in model container [2023-11-19 04:11:20,545 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:11:20" (3/3) ... [2023-11-19 04:11:20,546 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-more-buffer-mult.wvr.c [2023-11-19 04:11:20,566 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 04:11:20,567 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 30 error locations. [2023-11-19 04:11:20,567 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-19 04:11:20,708 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2023-11-19 04:11:20,773 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-11-19 04:11:20,799 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 263 places, 268 transitions, 564 flow [2023-11-19 04:11:20,802 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 263 places, 268 transitions, 564 flow [2023-11-19 04:11:20,804 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 263 places, 268 transitions, 564 flow [2023-11-19 04:11:20,939 INFO L124 PetriNetUnfolderBase]: 18/264 cut-off events. [2023-11-19 04:11:20,940 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-11-19 04:11:20,952 INFO L83 FinitePrefix]: Finished finitePrefix Result has 281 conditions, 264 events. 18/264 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 252 event pairs, 0 based on Foata normal form. 0/216 useless extension candidates. Maximal degree in co-relation 208. Up to 2 conditions per place. [2023-11-19 04:11:20,958 INFO L119 LiptonReduction]: Number of co-enabled transitions 3852 [2023-11-19 04:11:55,024 WARN L293 SmtUtils]: Spent 5.50s on a formula simplification. DAG size of input: 131 DAG size of output: 130 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition)