./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/weaver/popl20-more-buffer-series2.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_9b1cf88c-dd0f-43b2-8e14-9e11fe64f32e/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b1cf88c-dd0f-43b2-8e14-9e11fe64f32e/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_9b1cf88c-dd0f-43b2-8e14-9e11fe64f32e/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b1cf88c-dd0f-43b2-8e14-9e11fe64f32e/bin/utaipan-verify-NcY6lQBIFX/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/weaver/popl20-more-buffer-series2.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b1cf88c-dd0f-43b2-8e14-9e11fe64f32e/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_9b1cf88c-dd0f-43b2-8e14-9e11fe64f32e/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 8d3b4a56bf20a7e5cb147a14169234a27b247cfdef3db9f4b8a4f4a17cd6fe47 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 01:00:26,920 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 01:00:27,034 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b1cf88c-dd0f-43b2-8e14-9e11fe64f32e/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2023-11-12 01:00:27,040 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 01:00:27,041 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 01:00:27,065 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 01:00:27,066 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 01:00:27,067 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 01:00:27,067 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 01:00:27,068 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 01:00:27,069 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 01:00:27,069 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 01:00:27,070 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 01:00:27,070 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 01:00:27,071 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 01:00:27,071 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 01:00:27,072 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 01:00:27,073 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 01:00:27,073 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 01:00:27,074 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 01:00:27,074 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 01:00:27,075 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 01:00:27,076 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 01:00:27,077 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 01:00:27,077 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 01:00:27,078 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 01:00:27,078 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 01:00:27,079 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 01:00:27,079 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 01:00:27,080 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-12 01:00:27,080 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-12 01:00:27,081 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-12 01:00:27,081 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 01:00:27,081 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-12 01:00:27,082 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 01:00:27,082 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 01:00:27,082 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 01:00:27,082 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 01:00:27,083 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 01:00:27,083 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 01:00:27,083 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 01:00:27,084 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 01:00:27,084 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 01:00:27,084 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 01:00:27,085 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 01:00:27,085 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 01:00:27,085 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_9b1cf88c-dd0f-43b2-8e14-9e11fe64f32e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b1cf88c-dd0f-43b2-8e14-9e11fe64f32e/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8d3b4a56bf20a7e5cb147a14169234a27b247cfdef3db9f4b8a4f4a17cd6fe47 [2023-11-12 01:00:27,411 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 01:00:27,448 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 01:00:27,451 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 01:00:27,452 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 01:00:27,454 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 01:00:27,455 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b1cf88c-dd0f-43b2-8e14-9e11fe64f32e/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/weaver/popl20-more-buffer-series2.wvr.c [2023-11-12 01:00:30,791 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 01:00:31,134 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 01:00:31,135 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b1cf88c-dd0f-43b2-8e14-9e11fe64f32e/sv-benchmarks/c/weaver/popl20-more-buffer-series2.wvr.c [2023-11-12 01:00:31,144 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b1cf88c-dd0f-43b2-8e14-9e11fe64f32e/bin/utaipan-verify-NcY6lQBIFX/data/fcde97709/93c6843a37684724bf8401031e017c39/FLAG1202ecce7 [2023-11-12 01:00:31,159 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b1cf88c-dd0f-43b2-8e14-9e11fe64f32e/bin/utaipan-verify-NcY6lQBIFX/data/fcde97709/93c6843a37684724bf8401031e017c39 [2023-11-12 01:00:31,162 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 01:00:31,164 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 01:00:31,166 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 01:00:31,166 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 01:00:31,171 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 01:00:31,172 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 01:00:31" (1/1) ... [2023-11-12 01:00:31,173 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@133d580f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:00:31, skipping insertion in model container [2023-11-12 01:00:31,174 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 01:00:31" (1/1) ... [2023-11-12 01:00:31,202 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 01:00:31,407 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 01:00:31,420 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 01:00:31,421 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@232e20d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:00:31, skipping insertion in model container [2023-11-12 01:00:31,421 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 01:00:31,421 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-12 01:00:31,423 INFO L158 Benchmark]: Toolchain (without parser) took 258.28ms. Allocated memory is still 163.6MB. Free memory was 132.2MB in the beginning and 121.7MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-12 01:00:31,424 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 121.6MB. Free memory is still 77.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 01:00:31,425 INFO L158 Benchmark]: CACSL2BoogieTranslator took 255.61ms. Allocated memory is still 163.6MB. Free memory was 132.2MB in the beginning and 121.7MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-12 01:00:31,427 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 121.6MB. Free memory is still 77.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 255.61ms. Allocated memory is still 163.6MB. Free memory was 132.2MB in the beginning and 121.7MB 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: 160]: 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_9b1cf88c-dd0f-43b2-8e14-9e11fe64f32e/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b1cf88c-dd0f-43b2-8e14-9e11fe64f32e/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_9b1cf88c-dd0f-43b2-8e14-9e11fe64f32e/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b1cf88c-dd0f-43b2-8e14-9e11fe64f32e/bin/utaipan-verify-NcY6lQBIFX/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/weaver/popl20-more-buffer-series2.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b1cf88c-dd0f-43b2-8e14-9e11fe64f32e/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_9b1cf88c-dd0f-43b2-8e14-9e11fe64f32e/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 8d3b4a56bf20a7e5cb147a14169234a27b247cfdef3db9f4b8a4f4a17cd6fe47 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 01:00:34,099 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 01:00:34,258 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b1cf88c-dd0f-43b2-8e14-9e11fe64f32e/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2023-11-12 01:00:34,268 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 01:00:34,269 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 01:00:34,346 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 01:00:34,347 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 01:00:34,348 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 01:00:34,349 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 01:00:34,355 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 01:00:34,356 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 01:00:34,357 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 01:00:34,358 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 01:00:34,360 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 01:00:34,360 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 01:00:34,361 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 01:00:34,362 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 01:00:34,363 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 01:00:34,364 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 01:00:34,366 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 01:00:34,366 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 01:00:34,367 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 01:00:34,368 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 01:00:34,368 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-12 01:00:34,369 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-12 01:00:34,370 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-12 01:00:34,370 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 01:00:34,371 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-12 01:00:34,372 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-12 01:00:34,372 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-12 01:00:34,374 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 01:00:34,375 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 01:00:34,375 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 01:00:34,376 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 01:00:34,376 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 01:00:34,377 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 01:00:34,378 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 01:00:34,379 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 01:00:34,379 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 01:00:34,380 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-12 01:00:34,380 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-12 01:00:34,381 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 01:00:34,381 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 01:00:34,381 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_9b1cf88c-dd0f-43b2-8e14-9e11fe64f32e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b1cf88c-dd0f-43b2-8e14-9e11fe64f32e/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8d3b4a56bf20a7e5cb147a14169234a27b247cfdef3db9f4b8a4f4a17cd6fe47 [2023-11-12 01:00:34,915 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 01:00:34,953 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 01:00:34,956 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 01:00:34,958 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 01:00:34,959 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 01:00:34,961 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b1cf88c-dd0f-43b2-8e14-9e11fe64f32e/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/weaver/popl20-more-buffer-series2.wvr.c [2023-11-12 01:00:38,177 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 01:00:38,462 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 01:00:38,463 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b1cf88c-dd0f-43b2-8e14-9e11fe64f32e/sv-benchmarks/c/weaver/popl20-more-buffer-series2.wvr.c [2023-11-12 01:00:38,474 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b1cf88c-dd0f-43b2-8e14-9e11fe64f32e/bin/utaipan-verify-NcY6lQBIFX/data/a2d5a4f90/c98c29d71a4d4dbfb8eb7fa8caf7cd45/FLAGaed093ddf [2023-11-12 01:00:38,493 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b1cf88c-dd0f-43b2-8e14-9e11fe64f32e/bin/utaipan-verify-NcY6lQBIFX/data/a2d5a4f90/c98c29d71a4d4dbfb8eb7fa8caf7cd45 [2023-11-12 01:00:38,496 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 01:00:38,498 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 01:00:38,500 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 01:00:38,500 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 01:00:38,506 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 01:00:38,507 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 01:00:38" (1/1) ... [2023-11-12 01:00:38,509 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3707c511 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:00:38, skipping insertion in model container [2023-11-12 01:00:38,509 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 01:00:38" (1/1) ... [2023-11-12 01:00:38,562 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 01:00:38,855 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 01:00:38,871 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-12 01:00:38,879 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 01:00:38,908 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 01:00:38,915 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 01:00:38,954 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 01:00:38,967 WARN L672 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 01:00:38,967 WARN L672 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 01:00:38,977 INFO L206 MainTranslator]: Completed translation [2023-11-12 01:00:38,977 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:00:38 WrapperNode [2023-11-12 01:00:38,978 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 01:00:38,979 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 01:00:38,979 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 01:00:38,979 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 01:00:38,988 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:00:38" (1/1) ... [2023-11-12 01:00:39,005 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:00:38" (1/1) ... [2023-11-12 01:00:39,119 INFO L138 Inliner]: procedures = 29, calls = 84, calls flagged for inlining = 23, calls inlined = 29, statements flattened = 352 [2023-11-12 01:00:39,123 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 01:00:39,125 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 01:00:39,125 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 01:00:39,126 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 01:00:39,137 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:00:38" (1/1) ... [2023-11-12 01:00:39,137 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:00:38" (1/1) ... [2023-11-12 01:00:39,177 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:00:38" (1/1) ... [2023-11-12 01:00:39,183 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:00:38" (1/1) ... [2023-11-12 01:00:39,222 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:00:38" (1/1) ... [2023-11-12 01:00:39,228 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:00:38" (1/1) ... [2023-11-12 01:00:39,247 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:00:38" (1/1) ... [2023-11-12 01:00:39,250 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:00:38" (1/1) ... [2023-11-12 01:00:39,255 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 01:00:39,256 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 01:00:39,263 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 01:00:39,264 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 01:00:39,265 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:00:38" (1/1) ... [2023-11-12 01:00:39,271 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 01:00:39,294 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b1cf88c-dd0f-43b2-8e14-9e11fe64f32e/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 01:00:39,314 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b1cf88c-dd0f-43b2-8e14-9e11fe64f32e/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 01:00:39,352 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b1cf88c-dd0f-43b2-8e14-9e11fe64f32e/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 01:00:39,369 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 01:00:39,369 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-12 01:00:39,369 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 01:00:39,370 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-12 01:00:39,370 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-12 01:00:39,370 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-12 01:00:39,370 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-12 01:00:39,372 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-12 01:00:39,373 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-12 01:00:39,373 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-12 01:00:39,373 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2023-11-12 01:00:39,373 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2023-11-12 01:00:39,374 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-12 01:00:39,374 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-12 01:00:39,374 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-12 01:00:39,374 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 01:00:39,375 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 01:00:39,376 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 01:00:39,376 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-12 01:00:39,378 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 01:00:39,580 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 01:00:39,583 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 01:00:40,674 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 01:00:41,097 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 01:00:41,097 INFO L302 CfgBuilder]: Removed 7 assume(true) statements. [2023-11-12 01:00:41,102 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 01:00:41 BoogieIcfgContainer [2023-11-12 01:00:41,102 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 01:00:41,107 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 01:00:41,107 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 01:00:41,111 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 01:00:41,111 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 01:00:38" (1/3) ... [2023-11-12 01:00:41,112 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1782977d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 01:00:41, skipping insertion in model container [2023-11-12 01:00:41,113 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:00:38" (2/3) ... [2023-11-12 01:00:41,115 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1782977d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 01:00:41, skipping insertion in model container [2023-11-12 01:00:41,115 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 01:00:41" (3/3) ... [2023-11-12 01:00:41,117 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-more-buffer-series2.wvr.c [2023-11-12 01:00:41,139 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 01:00:41,140 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 38 error locations. [2023-11-12 01:00:41,140 INFO L521 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-12 01:00:41,324 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2023-11-12 01:00:41,384 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-11-12 01:00:41,407 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 302 places, 311 transitions, 650 flow [2023-11-12 01:00:41,413 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 302 places, 311 transitions, 650 flow [2023-11-12 01:00:41,415 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 302 places, 311 transitions, 650 flow [2023-11-12 01:00:41,562 INFO L124 PetriNetUnfolderBase]: 22/307 cut-off events. [2023-11-12 01:00:41,562 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-11-12 01:00:41,569 INFO L83 FinitePrefix]: Finished finitePrefix Result has 324 conditions, 307 events. 22/307 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 301 event pairs, 0 based on Foata normal form. 0/247 useless extension candidates. Maximal degree in co-relation 251. Up to 2 conditions per place. [2023-11-12 01:00:41,574 INFO L119 LiptonReduction]: Number of co-enabled transitions 4344