./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-coreutils/instrumented_interval_tail_comb.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows 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_18a375fd-c596-4665-9550-c08e426e09ee/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a375fd-c596-4665-9550-c08e426e09ee/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_18a375fd-c596-4665-9550-c08e426e09ee/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a375fd-c596-4665-9550-c08e426e09ee/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-coreutils/instrumented_interval_tail_comb.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a375fd-c596-4665-9550-c08e426e09ee/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a375fd-c596-4665-9550-c08e426e09ee/bin/utaipan-verify-NcY6lQBIFX --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 60b3c577fa65970bc54a66f3c47d776002fb71c3b88171fe0d06c29869c37698 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 01:02:23,455 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 01:02:23,578 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a375fd-c596-4665-9550-c08e426e09ee/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Overflow-64bit-Taipan_Default.epf [2023-11-12 01:02:23,584 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 01:02:23,585 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 01:02:23,625 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 01:02:23,626 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 01:02:23,627 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 01:02:23,628 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 01:02:23,633 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 01:02:23,633 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 01:02:23,634 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 01:02:23,635 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 01:02:23,637 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 01:02:23,637 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 01:02:23,637 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 01:02:23,638 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 01:02:23,638 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 01:02:23,639 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 01:02:23,639 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 01:02:23,640 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 01:02:23,640 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 01:02:23,642 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 01:02:23,642 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 01:02:23,642 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 01:02:23,643 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 01:02:23,643 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 01:02:23,644 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 01:02:23,644 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 01:02:23,645 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-12 01:02:23,646 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 01:02:23,646 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 01:02:23,658 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 01:02:23,658 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 01:02:23,658 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 01:02:23,659 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 01:02:23,659 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 01:02:23,659 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 01:02:23,659 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 01:02:23,660 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 01:02:23,660 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 01:02:23,660 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 01:02:23,661 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 01:02:23,661 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 01:02:23,662 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_18a375fd-c596-4665-9550-c08e426e09ee/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a375fd-c596-4665-9550-c08e426e09ee/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 60b3c577fa65970bc54a66f3c47d776002fb71c3b88171fe0d06c29869c37698 [2023-11-12 01:02:24,012 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 01:02:24,069 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 01:02:24,074 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 01:02:24,076 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 01:02:24,082 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 01:02:24,083 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a375fd-c596-4665-9550-c08e426e09ee/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/goblint-coreutils/instrumented_interval_tail_comb.i [2023-11-12 01:02:27,154 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 01:02:29,157 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 01:02:29,158 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a375fd-c596-4665-9550-c08e426e09ee/sv-benchmarks/c/goblint-coreutils/instrumented_interval_tail_comb.i [2023-11-12 01:02:29,398 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a375fd-c596-4665-9550-c08e426e09ee/bin/utaipan-verify-NcY6lQBIFX/data/6084ed900/a904055eae5548d8bd19a849e7450e2d/FLAG254781540 [2023-11-12 01:02:29,416 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a375fd-c596-4665-9550-c08e426e09ee/bin/utaipan-verify-NcY6lQBIFX/data/6084ed900/a904055eae5548d8bd19a849e7450e2d [2023-11-12 01:02:29,422 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 01:02:29,425 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 01:02:29,428 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 01:02:29,429 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 01:02:29,434 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 01:02:29,435 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 01:02:29" (1/1) ... [2023-11-12 01:02:29,436 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a7b49d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:02:29, skipping insertion in model container [2023-11-12 01:02:29,437 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 01:02:29" (1/1) ... [2023-11-12 01:02:30,113 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 01:03:02,718 WARN L635 FunctionHandler]: implicit declaration of function __builtin___memcpy_chk [2023-11-12 01:03:02,720 WARN L635 FunctionHandler]: implicit declaration of function __builtin___memmove_chk [2023-11-12 01:03:02,721 WARN L635 FunctionHandler]: implicit declaration of function __builtin___mempcpy_chk [2023-11-12 01:03:02,722 WARN L635 FunctionHandler]: implicit declaration of function __builtin___memset_chk [2023-11-12 01:03:02,725 WARN L635 FunctionHandler]: implicit declaration of function __builtin___strcpy_chk [2023-11-12 01:03:02,726 WARN L635 FunctionHandler]: implicit declaration of function __builtin___stpcpy_chk [2023-11-12 01:03:02,727 WARN L635 FunctionHandler]: implicit declaration of function __builtin___strncpy_chk [2023-11-12 01:03:02,730 WARN L635 FunctionHandler]: implicit declaration of function __builtin___strcat_chk [2023-11-12 01:03:02,731 WARN L635 FunctionHandler]: implicit declaration of function __builtin___strncat_chk [2023-11-12 01:03:02,782 WARN L635 FunctionHandler]: implicit declaration of function __builtin___vsnprintf_chk [2023-11-12 01:03:02,924 WARN L635 FunctionHandler]: implicit declaration of function __builtin_strspn [2023-11-12 01:03:03,781 WARN L635 FunctionHandler]: implicit declaration of function __builtin_strcspn [2023-11-12 01:03:04,276 ERROR L324 MainTranslator]: Unsupported Syntax: The second argument of the pthread_mutex_init is not a null pointer. This means that non-default attributes are used. We support only the default attributes. [2023-11-12 01:03:04,277 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2ffe7bce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:03:04, skipping insertion in model container [2023-11-12 01:03:04,278 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 01:03:04,278 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-12 01:03:04,281 INFO L158 Benchmark]: Toolchain (without parser) took 34854.57ms. Allocated memory was 178.3MB in the beginning and 358.6MB in the end (delta: 180.4MB). Free memory was 107.5MB in the beginning and 197.4MB in the end (delta: -89.9MB). Peak memory consumption was 234.9MB. Max. memory is 16.1GB. [2023-11-12 01:03:04,282 INFO L158 Benchmark]: CDTParser took 1.37ms. Allocated memory is still 134.2MB. Free memory was 106.9MB in the beginning and 106.7MB in the end (delta: 139.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 01:03:04,284 INFO L158 Benchmark]: CACSL2BoogieTranslator took 34849.87ms. Allocated memory was 178.3MB in the beginning and 358.6MB in the end (delta: 180.4MB). Free memory was 107.3MB in the beginning and 198.5MB in the end (delta: -91.2MB). Peak memory consumption was 234.9MB. Max. memory is 16.1GB. [2023-11-12 01:03:04,286 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.37ms. Allocated memory is still 134.2MB. Free memory was 106.9MB in the beginning and 106.7MB in the end (delta: 139.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 34849.87ms. Allocated memory was 178.3MB in the beginning and 358.6MB in the end (delta: 180.4MB). Free memory was 107.3MB in the beginning and 198.5MB in the end (delta: -91.2MB). Peak memory consumption was 234.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 36411]: Unsupported Syntax The second argument of the pthread_mutex_init is not a null pointer. This means that non-default attributes are used. We support only the default attributes. 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_18a375fd-c596-4665-9550-c08e426e09ee/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a375fd-c596-4665-9550-c08e426e09ee/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_18a375fd-c596-4665-9550-c08e426e09ee/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a375fd-c596-4665-9550-c08e426e09ee/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-coreutils/instrumented_interval_tail_comb.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a375fd-c596-4665-9550-c08e426e09ee/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a375fd-c596-4665-9550-c08e426e09ee/bin/utaipan-verify-NcY6lQBIFX --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 60b3c577fa65970bc54a66f3c47d776002fb71c3b88171fe0d06c29869c37698 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 01:03:06,777 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 01:03:06,906 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a375fd-c596-4665-9550-c08e426e09ee/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf [2023-11-12 01:03:06,918 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 01:03:06,919 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 01:03:06,961 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 01:03:06,961 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 01:03:06,962 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 01:03:06,963 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 01:03:06,968 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 01:03:06,968 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 01:03:06,969 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 01:03:06,969 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 01:03:06,979 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 01:03:06,979 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 01:03:06,979 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 01:03:06,981 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 01:03:06,981 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 01:03:06,981 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 01:03:06,983 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 01:03:06,983 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 01:03:06,983 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 01:03:06,984 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-12 01:03:06,984 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-12 01:03:06,985 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-12 01:03:06,985 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-12 01:03:06,985 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 01:03:06,986 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 01:03:06,986 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 01:03:06,987 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 01:03:06,988 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 01:03:06,988 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 01:03:06,989 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 01:03:06,989 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 01:03:06,990 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 01:03:06,990 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 01:03:06,990 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-12 01:03:06,990 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-12 01:03:06,991 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 01:03:06,992 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 01:03:06,992 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 01:03:06,992 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_18a375fd-c596-4665-9550-c08e426e09ee/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a375fd-c596-4665-9550-c08e426e09ee/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 60b3c577fa65970bc54a66f3c47d776002fb71c3b88171fe0d06c29869c37698 [2023-11-12 01:03:07,349 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 01:03:07,376 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 01:03:07,379 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 01:03:07,380 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 01:03:07,381 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 01:03:07,382 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a375fd-c596-4665-9550-c08e426e09ee/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/goblint-coreutils/instrumented_interval_tail_comb.i [2023-11-12 01:03:10,721 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 01:03:13,017 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 01:03:13,018 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a375fd-c596-4665-9550-c08e426e09ee/sv-benchmarks/c/goblint-coreutils/instrumented_interval_tail_comb.i [2023-11-12 01:03:13,245 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a375fd-c596-4665-9550-c08e426e09ee/bin/utaipan-verify-NcY6lQBIFX/data/d2182184a/52193fb6573b47e8bcc35cb86e11a484/FLAG07ac481f6 [2023-11-12 01:03:13,262 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a375fd-c596-4665-9550-c08e426e09ee/bin/utaipan-verify-NcY6lQBIFX/data/d2182184a/52193fb6573b47e8bcc35cb86e11a484 [2023-11-12 01:03:13,265 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 01:03:13,266 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 01:03:13,268 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 01:03:13,268 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 01:03:13,273 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 01:03:13,274 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 01:03:13" (1/1) ... [2023-11-12 01:03:13,275 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@257399af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:03:13, skipping insertion in model container [2023-11-12 01:03:13,276 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 01:03:13" (1/1) ... [2023-11-12 01:03:14,305 INFO L177 MainTranslator]: Built tables and reachable declarations