./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-coreutils/instrumented_cksum_comb.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version cf1a7837 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_894e190b-090a-441a-8bd5-1f25349fb051/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_894e190b-090a-441a-8bd5-1f25349fb051/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_894e190b-090a-441a-8bd5-1f25349fb051/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_894e190b-090a-441a-8bd5-1f25349fb051/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-coreutils/instrumented_cksum_comb.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_894e190b-090a-441a-8bd5-1f25349fb051/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_894e190b-090a-441a-8bd5-1f25349fb051/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 43a21227e28ea1d3dea5c269e9a8aec5d2ff980f267bc89951928cd0fc79730a --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:58:13,153 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:58:13,269 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_894e190b-090a-441a-8bd5-1f25349fb051/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Overflow-64bit-Taipan_Default.epf [2023-11-12 00:58:13,275 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:58:13,277 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:58:13,326 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:58:13,327 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:58:13,328 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:58:13,329 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:58:13,334 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:58:13,334 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:58:13,335 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:58:13,335 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:58:13,337 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 00:58:13,337 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:58:13,338 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:58:13,338 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 00:58:13,339 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 00:58:13,339 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:58:13,340 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 00:58:13,340 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 00:58:13,341 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 00:58:13,342 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:58:13,342 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:58:13,343 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:58:13,343 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:58:13,344 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:58:13,344 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:58:13,344 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:58:13,345 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-12 00:58:13,346 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 00:58:13,346 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:58:13,347 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:58:13,347 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:58:13,347 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:58:13,347 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:58:13,348 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:58:13,348 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:58:13,348 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:58:13,348 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 00:58:13,373 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 00:58:13,374 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:58:13,374 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:58:13,374 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:58:13,374 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_894e190b-090a-441a-8bd5-1f25349fb051/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_894e190b-090a-441a-8bd5-1f25349fb051/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 43a21227e28ea1d3dea5c269e9a8aec5d2ff980f267bc89951928cd0fc79730a [2023-11-12 00:58:13,692 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:58:13,737 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:58:13,740 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:58:13,741 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:58:13,742 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:58:13,743 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_894e190b-090a-441a-8bd5-1f25349fb051/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/goblint-coreutils/instrumented_cksum_comb.i [2023-11-12 00:58:16,942 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:58:18,851 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:58:18,857 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_894e190b-090a-441a-8bd5-1f25349fb051/sv-benchmarks/c/goblint-coreutils/instrumented_cksum_comb.i [2023-11-12 00:58:19,124 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_894e190b-090a-441a-8bd5-1f25349fb051/bin/utaipan-verify-NcY6lQBIFX/data/1e23c6019/6a1fb9ff538f4e31b870e02acff7ebf2/FLAG0d083ce60 [2023-11-12 00:58:19,145 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_894e190b-090a-441a-8bd5-1f25349fb051/bin/utaipan-verify-NcY6lQBIFX/data/1e23c6019/6a1fb9ff538f4e31b870e02acff7ebf2 [2023-11-12 00:58:19,150 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:58:19,152 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:58:19,154 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:58:19,154 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:58:19,160 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:58:19,161 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:58:19" (1/1) ... [2023-11-12 00:58:19,162 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@135dee6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:58:19, skipping insertion in model container [2023-11-12 00:58:19,162 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:58:19" (1/1) ... [2023-11-12 00:58:19,746 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:58:47,992 WARN L635 FunctionHandler]: implicit declaration of function __builtin___memcpy_chk [2023-11-12 00:58:47,993 WARN L635 FunctionHandler]: implicit declaration of function __builtin___memmove_chk [2023-11-12 00:58:47,994 WARN L635 FunctionHandler]: implicit declaration of function __builtin___mempcpy_chk [2023-11-12 00:58:47,995 WARN L635 FunctionHandler]: implicit declaration of function __builtin___memset_chk [2023-11-12 00:58:47,999 WARN L635 FunctionHandler]: implicit declaration of function __builtin___strcpy_chk [2023-11-12 00:58:48,000 WARN L635 FunctionHandler]: implicit declaration of function __builtin___stpcpy_chk [2023-11-12 00:58:48,002 WARN L635 FunctionHandler]: implicit declaration of function __builtin___strncpy_chk [2023-11-12 00:58:48,004 WARN L635 FunctionHandler]: implicit declaration of function __builtin___strcat_chk [2023-11-12 00:58:48,005 WARN L635 FunctionHandler]: implicit declaration of function __builtin___strncat_chk [2023-11-12 00:58:48,110 WARN L635 FunctionHandler]: implicit declaration of function __builtin___vsnprintf_chk [2023-11-12 00:58:48,241 WARN L635 FunctionHandler]: implicit declaration of function __builtin_strspn [2023-11-12 00:58:48,781 WARN L635 FunctionHandler]: implicit declaration of function __builtin_strcspn [2023-11-12 00:58:49,300 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 00:58:49,303 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@a025abb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:58:49, skipping insertion in model container [2023-11-12 00:58:49,304 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:58:49,304 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-12 00:58:49,307 INFO L158 Benchmark]: Toolchain (without parser) took 30153.12ms. Allocated memory was 184.5MB in the beginning and 358.6MB in the end (delta: 174.1MB). Free memory was 117.2MB in the beginning and 219.5MB in the end (delta: -102.2MB). Peak memory consumption was 281.5MB. Max. memory is 16.1GB. [2023-11-12 00:58:49,307 INFO L158 Benchmark]: CDTParser took 1.40ms. Allocated memory is still 130.0MB. Free memory is still 101.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:58:49,309 INFO L158 Benchmark]: CACSL2BoogieTranslator took 30150.39ms. Allocated memory was 184.5MB in the beginning and 358.6MB in the end (delta: 174.1MB). Free memory was 117.0MB in the beginning and 219.5MB in the end (delta: -102.4MB). Peak memory consumption was 277.3MB. Max. memory is 16.1GB. [2023-11-12 00:58:49,311 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.40ms. Allocated memory is still 130.0MB. Free memory is still 101.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 30150.39ms. Allocated memory was 184.5MB in the beginning and 358.6MB in the end (delta: 174.1MB). Free memory was 117.0MB in the beginning and 219.5MB in the end (delta: -102.4MB). Peak memory consumption was 277.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 35904]: 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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_894e190b-090a-441a-8bd5-1f25349fb051/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_894e190b-090a-441a-8bd5-1f25349fb051/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_894e190b-090a-441a-8bd5-1f25349fb051/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_894e190b-090a-441a-8bd5-1f25349fb051/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-coreutils/instrumented_cksum_comb.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_894e190b-090a-441a-8bd5-1f25349fb051/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_894e190b-090a-441a-8bd5-1f25349fb051/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 43a21227e28ea1d3dea5c269e9a8aec5d2ff980f267bc89951928cd0fc79730a --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:58:51,750 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:58:51,872 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_894e190b-090a-441a-8bd5-1f25349fb051/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf [2023-11-12 00:58:51,878 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:58:51,879 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:58:51,907 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:58:51,908 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:58:51,909 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:58:51,910 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:58:51,911 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:58:51,911 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:58:51,912 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:58:51,913 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:58:51,914 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:58:51,914 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:58:51,915 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:58:51,916 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:58:51,917 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:58:51,917 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:58:51,918 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:58:51,919 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:58:51,920 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:58:51,920 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-12 00:58:51,921 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-12 00:58:51,922 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-12 00:58:51,922 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-12 00:58:51,923 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 00:58:51,923 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:58:51,924 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:58:51,925 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:58:51,925 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 00:58:51,926 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:58:51,926 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:58:51,927 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:58:51,927 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:58:51,928 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:58:51,928 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-12 00:58:51,928 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-12 00:58:51,929 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:58:51,929 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:58:51,929 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:58:51,930 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_894e190b-090a-441a-8bd5-1f25349fb051/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_894e190b-090a-441a-8bd5-1f25349fb051/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 43a21227e28ea1d3dea5c269e9a8aec5d2ff980f267bc89951928cd0fc79730a [2023-11-12 00:58:52,343 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:58:52,376 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:58:52,379 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:58:52,380 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:58:52,380 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:58:52,382 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_894e190b-090a-441a-8bd5-1f25349fb051/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/goblint-coreutils/instrumented_cksum_comb.i [2023-11-12 00:58:55,516 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:58:57,383 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:58:57,384 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_894e190b-090a-441a-8bd5-1f25349fb051/sv-benchmarks/c/goblint-coreutils/instrumented_cksum_comb.i [2023-11-12 00:58:57,676 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_894e190b-090a-441a-8bd5-1f25349fb051/bin/utaipan-verify-NcY6lQBIFX/data/a51b77eef/a94e3456574349faa2f951d453ee1f56/FLAG28251fb54 [2023-11-12 00:58:57,693 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_894e190b-090a-441a-8bd5-1f25349fb051/bin/utaipan-verify-NcY6lQBIFX/data/a51b77eef/a94e3456574349faa2f951d453ee1f56 [2023-11-12 00:58:57,696 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:58:57,697 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:58:57,699 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:58:57,699 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:58:57,705 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:58:57,706 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:58:57" (1/1) ... [2023-11-12 00:58:57,708 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@661847f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:58:57, skipping insertion in model container [2023-11-12 00:58:57,708 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:58:57" (1/1) ... [2023-11-12 00:58:58,306 INFO L177 MainTranslator]: Built tables and reachable declarations