./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/goblint-coreutils/instrumented_tail_comb.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f8ceb9c-7e4b-48be-a781-c166a05ec8bf/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f8ceb9c-7e4b-48be-a781-c166a05ec8bf/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f8ceb9c-7e4b-48be-a781-c166a05ec8bf/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f8ceb9c-7e4b-48be-a781-c166a05ec8bf/bin/utaipan-verify-mE87zJ7Ire/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/goblint-coreutils/instrumented_tail_comb.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f8ceb9c-7e4b-48be-a781-c166a05ec8bf/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-DerefFreeMemtrack-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f8ceb9c-7e4b-48be-a781-c166a05ec8bf/bin/utaipan-verify-mE87zJ7Ire --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 64bit --witnessprinter.graph.data.programhash e1cb53b0b4a16da3dbf2f20341c878664cce096875bbfc489951f2df98de6675 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:10:44,618 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:10:44,735 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f8ceb9c-7e4b-48be-a781-c166a05ec8bf/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-DerefFreeMemtrack-64bit-Taipan_Default.epf [2023-11-23 21:10:44,746 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:10:44,747 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:10:44,780 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:10:44,780 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:10:44,781 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:10:44,782 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:10:44,786 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:10:44,787 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:10:44,787 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:10:44,788 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:10:44,790 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:10:44,790 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:10:44,790 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:10:44,791 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:10:44,791 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:10:44,792 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:10:44,792 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:10:44,792 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:10:44,793 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:10:44,794 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 21:10:44,794 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 21:10:44,795 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:10:44,795 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:10:44,796 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:10:44,796 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-23 21:10:44,797 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-23 21:10:44,797 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-23 21:10:44,798 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:10:44,798 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-23 21:10:44,799 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 21:10:44,799 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:10:44,799 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:10:44,799 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:10:44,800 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:10:44,800 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:10:44,800 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:10:44,800 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:10:44,801 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:10:44,801 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:10:44,801 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:10:44,802 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:10:44,802 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:10:44,802 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_8f8ceb9c-7e4b-48be-a781-c166a05ec8bf/bin/utaipan-verify-mE87zJ7Ire/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f8ceb9c-7e4b-48be-a781-c166a05ec8bf/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e1cb53b0b4a16da3dbf2f20341c878664cce096875bbfc489951f2df98de6675 [2023-11-23 21:10:45,080 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:10:45,111 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:10:45,114 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:10:45,117 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:10:45,117 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:10:45,121 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f8ceb9c-7e4b-48be-a781-c166a05ec8bf/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/goblint-coreutils/instrumented_tail_comb.i [2023-11-23 21:10:48,213 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:10:50,366 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:10:50,367 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f8ceb9c-7e4b-48be-a781-c166a05ec8bf/sv-benchmarks/c/goblint-coreutils/instrumented_tail_comb.i [2023-11-23 21:10:50,520 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f8ceb9c-7e4b-48be-a781-c166a05ec8bf/bin/utaipan-verify-mE87zJ7Ire/data/ed8053d46/b9170880c15e42639708e9062cdf276f/FLAGb30c60d52 [2023-11-23 21:10:50,536 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f8ceb9c-7e4b-48be-a781-c166a05ec8bf/bin/utaipan-verify-mE87zJ7Ire/data/ed8053d46/b9170880c15e42639708e9062cdf276f [2023-11-23 21:10:50,538 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:10:50,540 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:10:50,541 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:10:50,541 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:10:50,547 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:10:50,547 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:10:50" (1/1) ... [2023-11-23 21:10:50,549 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@743cbd21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:10:50, skipping insertion in model container [2023-11-23 21:10:50,549 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:10:50" (1/1) ... [2023-11-23 21:10:51,146 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:11:21,183 WARN L635 FunctionHandler]: implicit declaration of function __builtin___memcpy_chk [2023-11-23 21:11:21,184 WARN L635 FunctionHandler]: implicit declaration of function __builtin___memmove_chk [2023-11-23 21:11:21,186 WARN L635 FunctionHandler]: implicit declaration of function __builtin___mempcpy_chk [2023-11-23 21:11:21,187 WARN L635 FunctionHandler]: implicit declaration of function __builtin___memset_chk [2023-11-23 21:11:21,190 WARN L635 FunctionHandler]: implicit declaration of function __builtin___strcpy_chk [2023-11-23 21:11:21,192 WARN L635 FunctionHandler]: implicit declaration of function __builtin___stpcpy_chk [2023-11-23 21:11:21,193 WARN L635 FunctionHandler]: implicit declaration of function __builtin___strncpy_chk [2023-11-23 21:11:21,196 WARN L635 FunctionHandler]: implicit declaration of function __builtin___strcat_chk [2023-11-23 21:11:21,198 WARN L635 FunctionHandler]: implicit declaration of function __builtin___strncat_chk [2023-11-23 21:11:21,259 WARN L635 FunctionHandler]: implicit declaration of function __builtin___vsnprintf_chk [2023-11-23 21:11:21,466 WARN L635 FunctionHandler]: implicit declaration of function __builtin_strspn [2023-11-23 21:11:22,399 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.IllegalArgumentException: cannot determine size of incomplete type at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizeAndOffsetComputer.constructSizeTValueAndOffsetsStructAndUnion(TypeSizeAndOffsetComputer.java:233) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizeAndOffsetComputer.computeSize(TypeSizeAndOffsetComputer.java:184) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizeAndOffsetComputer.constructBytesizeExpression(TypeSizeAndOffsetComputer.java:121) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.checkIfNecessaryMemoryModelAdaption(CHandler.java:1023) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:963) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:281) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:728) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:284) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1427) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:222) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.handleCompoundStatement(CHandler.java:1088) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1073) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:234) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.handleCompoundStatement(CHandler.java:1088) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1073) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:234) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.handleCompoundStatement(CHandler.java:1088) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1073) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:234) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1679) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:231) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.handleCompoundStatement(CHandler.java:1088) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1073) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:234) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.handleCompoundStatement(CHandler.java:1088) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1073) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:234) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1679) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:231) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.handleCompoundStatement(CHandler.java:1088) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1073) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:234) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.handleCompoundStatement(CHandler.java:1088) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1073) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:234) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1679) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:231) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.handleCompoundStatement(CHandler.java:1088) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1073) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:234) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.handleCompoundStatement(CHandler.java:1088) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1073) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:234) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1679) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:231) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.handleCompoundStatement(CHandler.java:1088) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1073) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:234) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.handleCompoundStatement(CHandler.java:1088) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1073) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:234) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:383) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1512) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:157) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3412) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2432) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:611) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:133) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:191) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:117) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:95) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:147) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2023-11-23 21:11:22,413 INFO L158 Benchmark]: Toolchain (without parser) took 31870.59ms. Allocated memory was 201.3MB in the beginning and 312.5MB in the end (delta: 111.1MB). Free memory was 102.3MB in the beginning and 170.0MB in the end (delta: -67.6MB). Peak memory consumption was 201.9MB. Max. memory is 16.1GB. [2023-11-23 21:11:22,413 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 151.0MB. Free memory is still 123.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:11:22,415 INFO L158 Benchmark]: CACSL2BoogieTranslator took 31868.14ms. Allocated memory was 201.3MB in the beginning and 312.5MB in the end (delta: 111.1MB). Free memory was 102.3MB in the beginning and 170.0MB in the end (delta: -67.6MB). Peak memory consumption was 201.9MB. Max. memory is 16.1GB. [2023-11-23 21:11:22,417 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 151.0MB. Free memory is still 123.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 31868.14ms. Allocated memory was 201.3MB in the beginning and 312.5MB in the end (delta: 111.1MB). Free memory was 102.3MB in the beginning and 170.0MB in the end (delta: -67.6MB). Peak memory consumption was 201.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: IllegalArgumentException: cannot determine size of incomplete type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: IllegalArgumentException: cannot determine size of incomplete type: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizeAndOffsetComputer.constructSizeTValueAndOffsetsStructAndUnion(TypeSizeAndOffsetComputer.java:233) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f8ceb9c-7e4b-48be-a781-c166a05ec8bf/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f8ceb9c-7e4b-48be-a781-c166a05ec8bf/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f8ceb9c-7e4b-48be-a781-c166a05ec8bf/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f8ceb9c-7e4b-48be-a781-c166a05ec8bf/bin/utaipan-verify-mE87zJ7Ire/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/goblint-coreutils/instrumented_tail_comb.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f8ceb9c-7e4b-48be-a781-c166a05ec8bf/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-DerefFreeMemtrack-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f8ceb9c-7e4b-48be-a781-c166a05ec8bf/bin/utaipan-verify-mE87zJ7Ire --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 64bit --witnessprinter.graph.data.programhash e1cb53b0b4a16da3dbf2f20341c878664cce096875bbfc489951f2df98de6675 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:11:25,203 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:11:25,342 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f8ceb9c-7e4b-48be-a781-c166a05ec8bf/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-DerefFreeMemtrack-64bit-Taipan_Bitvector.epf [2023-11-23 21:11:25,351 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:11:25,352 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:11:25,413 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:11:25,414 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:11:25,414 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:11:25,415 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:11:25,420 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:11:25,421 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:11:25,421 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:11:25,422 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:11:25,424 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:11:25,424 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:11:25,425 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:11:25,425 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 21:11:25,426 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 21:11:25,427 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:11:25,428 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:11:25,428 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:11:25,429 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-23 21:11:25,429 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-23 21:11:25,430 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-23 21:11:25,430 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:11:25,430 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-23 21:11:25,431 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-23 21:11:25,431 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-23 21:11:25,432 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 21:11:25,432 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:11:25,434 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:11:25,434 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 21:11:25,434 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:11:25,435 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:11:25,435 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:11:25,435 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:11:25,436 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:11:25,437 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-23 21:11:25,437 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-23 21:11:25,437 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:11:25,438 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:11:25,438 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:11:25,438 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_8f8ceb9c-7e4b-48be-a781-c166a05ec8bf/bin/utaipan-verify-mE87zJ7Ire/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f8ceb9c-7e4b-48be-a781-c166a05ec8bf/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e1cb53b0b4a16da3dbf2f20341c878664cce096875bbfc489951f2df98de6675 [2023-11-23 21:11:25,838 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:11:25,869 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:11:25,871 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:11:25,873 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:11:25,873 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:11:25,875 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f8ceb9c-7e4b-48be-a781-c166a05ec8bf/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/goblint-coreutils/instrumented_tail_comb.i [2023-11-23 21:11:29,369 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:11:31,848 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:11:31,850 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f8ceb9c-7e4b-48be-a781-c166a05ec8bf/sv-benchmarks/c/goblint-coreutils/instrumented_tail_comb.i [2023-11-23 21:11:32,169 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f8ceb9c-7e4b-48be-a781-c166a05ec8bf/bin/utaipan-verify-mE87zJ7Ire/data/769d2ae56/6cb29421094b45cf9ab60e36c4341d64/FLAGdbf7896f9 [2023-11-23 21:11:32,198 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f8ceb9c-7e4b-48be-a781-c166a05ec8bf/bin/utaipan-verify-mE87zJ7Ire/data/769d2ae56/6cb29421094b45cf9ab60e36c4341d64 [2023-11-23 21:11:32,201 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:11:32,202 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:11:32,204 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:11:32,204 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:11:32,221 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:11:32,221 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:11:32" (1/1) ... [2023-11-23 21:11:32,223 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b645cd1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:11:32, skipping insertion in model container [2023-11-23 21:11:32,223 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:11:32" (1/1) ... [2023-11-23 21:11:32,988 INFO L177 MainTranslator]: Built tables and reachable declarations