./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-coreutils/instrumented_ptx_comb.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 30e01a73 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_d7e36165-28db-4712-a967-0fd134e1dace/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7e36165-28db-4712-a967-0fd134e1dace/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_d7e36165-28db-4712-a967-0fd134e1dace/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7e36165-28db-4712-a967-0fd134e1dace/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-coreutils/instrumented_ptx_comb.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7e36165-28db-4712-a967-0fd134e1dace/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7e36165-28db-4712-a967-0fd134e1dace/bin/utaipan-verify-mE87zJ7Ire --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 37cffa36d12f99fa5b0b0171dcb8704e4f919336fbfc801054ad86fe38d73e34 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:17:13,843 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:17:13,924 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7e36165-28db-4712-a967-0fd134e1dace/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Overflow-64bit-Taipan_Default.epf [2023-11-23 21:17:13,929 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:17:13,930 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:17:13,959 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:17:13,960 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:17:13,961 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:17:13,962 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:17:13,962 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:17:13,963 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:17:13,964 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:17:13,964 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:17:13,965 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:17:13,966 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:17:13,966 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:17:13,967 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:17:13,968 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:17:13,968 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:17:13,969 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:17:13,970 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:17:13,971 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:17:13,972 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:17:13,972 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:17:13,973 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:17:13,973 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:17:13,974 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:17:13,974 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:17:13,975 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:17:13,976 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-23 21:17:13,976 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 21:17:13,977 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:17:13,977 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:17:13,977 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:17:13,978 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:17:13,978 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:17:13,978 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:17:13,979 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:17:13,979 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:17:13,979 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:17:13,979 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:17:13,980 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:17:13,980 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:17:13,980 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:17:13,981 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:17:13,981 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:17:13,981 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_d7e36165-28db-4712-a967-0fd134e1dace/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7e36165-28db-4712-a967-0fd134e1dace/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 37cffa36d12f99fa5b0b0171dcb8704e4f919336fbfc801054ad86fe38d73e34 [2023-11-23 21:17:14,317 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:17:14,354 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:17:14,357 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:17:14,359 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:17:14,361 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:17:14,362 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7e36165-28db-4712-a967-0fd134e1dace/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/goblint-coreutils/instrumented_ptx_comb.i [2023-11-23 21:17:17,709 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:17:19,648 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:17:19,649 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7e36165-28db-4712-a967-0fd134e1dace/sv-benchmarks/c/goblint-coreutils/instrumented_ptx_comb.i [2023-11-23 21:17:19,847 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7e36165-28db-4712-a967-0fd134e1dace/bin/utaipan-verify-mE87zJ7Ire/data/561840b5e/128a616f8db54f8ab49a3593e5dfc32c/FLAGc959c356a [2023-11-23 21:17:19,958 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7e36165-28db-4712-a967-0fd134e1dace/bin/utaipan-verify-mE87zJ7Ire/data/561840b5e/128a616f8db54f8ab49a3593e5dfc32c [2023-11-23 21:17:19,962 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:17:19,966 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:17:19,969 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:17:19,971 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:17:19,977 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:17:19,977 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:17:19" (1/1) ... [2023-11-23 21:17:19,979 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6de3be40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:17:19, skipping insertion in model container [2023-11-23 21:17:19,979 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:17:19" (1/1) ... [2023-11-23 21:17:20,647 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:17:52,049 WARN L635 FunctionHandler]: implicit declaration of function __builtin___memcpy_chk [2023-11-23 21:17:52,051 WARN L635 FunctionHandler]: implicit declaration of function __builtin___memmove_chk [2023-11-23 21:17:52,053 WARN L635 FunctionHandler]: implicit declaration of function __builtin___mempcpy_chk [2023-11-23 21:17:52,054 WARN L635 FunctionHandler]: implicit declaration of function __builtin___memset_chk [2023-11-23 21:17:52,056 WARN L635 FunctionHandler]: implicit declaration of function __builtin___strcpy_chk [2023-11-23 21:17:52,058 WARN L635 FunctionHandler]: implicit declaration of function __builtin___stpcpy_chk [2023-11-23 21:17:52,062 WARN L635 FunctionHandler]: implicit declaration of function __builtin___strncpy_chk [2023-11-23 21:17:52,064 WARN L635 FunctionHandler]: implicit declaration of function __builtin___strcat_chk [2023-11-23 21:17:52,067 WARN L635 FunctionHandler]: implicit declaration of function __builtin___strncat_chk [2023-11-23 21:17:52,135 WARN L635 FunctionHandler]: implicit declaration of function __builtin___vsnprintf_chk [2023-11-23 21:17:52,284 WARN L635 FunctionHandler]: implicit declaration of function __builtin_strspn [2023-11-23 21:17:52,889 WARN L635 FunctionHandler]: implicit declaration of function __builtin_strcspn [2023-11-23 21:17:53,310 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. [2023-11-23 21:17:53,311 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@164eabfa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:17:53, skipping insertion in model container [2023-11-23 21:17:53,312 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:17:53,312 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-23 21:17:53,314 INFO L158 Benchmark]: Toolchain (without parser) took 33347.71ms. Allocated memory was 174.1MB in the beginning and 316.7MB in the end (delta: 142.6MB). Free memory was 92.0MB in the beginning and 157.8MB in the end (delta: -65.8MB). Peak memory consumption was 225.2MB. Max. memory is 16.1GB. [2023-11-23 21:17:53,315 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 123.7MB. Free memory is still 71.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:17:53,316 INFO L158 Benchmark]: CACSL2BoogieTranslator took 33342.74ms. Allocated memory was 174.1MB in the beginning and 316.7MB in the end (delta: 142.6MB). Free memory was 92.0MB in the beginning and 157.8MB in the end (delta: -65.8MB). Peak memory consumption was 225.2MB. Max. memory is 16.1GB. [2023-11-23 21:17:53,318 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 123.7MB. Free memory is still 71.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 33342.74ms. Allocated memory was 174.1MB in the beginning and 316.7MB in the end (delta: 142.6MB). Free memory was 92.0MB in the beginning and 157.8MB in the end (delta: -65.8MB). Peak memory consumption was 225.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 36147]: 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_d7e36165-28db-4712-a967-0fd134e1dace/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7e36165-28db-4712-a967-0fd134e1dace/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_d7e36165-28db-4712-a967-0fd134e1dace/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7e36165-28db-4712-a967-0fd134e1dace/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-coreutils/instrumented_ptx_comb.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7e36165-28db-4712-a967-0fd134e1dace/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7e36165-28db-4712-a967-0fd134e1dace/bin/utaipan-verify-mE87zJ7Ire --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 37cffa36d12f99fa5b0b0171dcb8704e4f919336fbfc801054ad86fe38d73e34 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:17:55,747 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:17:55,881 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7e36165-28db-4712-a967-0fd134e1dace/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf [2023-11-23 21:17:55,891 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:17:55,892 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:17:55,937 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:17:55,937 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:17:55,938 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:17:55,939 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:17:55,945 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:17:55,945 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:17:55,946 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:17:55,947 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:17:55,949 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:17:55,949 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:17:55,950 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:17:55,951 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:17:55,952 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:17:55,952 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:17:55,954 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:17:55,954 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:17:55,955 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:17:55,956 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-23 21:17:55,956 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-23 21:17:55,957 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-23 21:17:55,957 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-23 21:17:55,958 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 21:17:55,958 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:17:55,959 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:17:55,959 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:17:55,961 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 21:17:55,961 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:17:55,962 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:17:55,962 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:17:55,963 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:17:55,963 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:17:55,964 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:17:55,964 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-23 21:17:55,964 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-23 21:17:55,966 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:17:55,966 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:17:55,967 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:17:55,967 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:17:55,967 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_d7e36165-28db-4712-a967-0fd134e1dace/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7e36165-28db-4712-a967-0fd134e1dace/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 37cffa36d12f99fa5b0b0171dcb8704e4f919336fbfc801054ad86fe38d73e34 [2023-11-23 21:17:56,467 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:17:56,506 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:17:56,509 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:17:56,511 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:17:56,512 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:17:56,513 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7e36165-28db-4712-a967-0fd134e1dace/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/goblint-coreutils/instrumented_ptx_comb.i [2023-11-23 21:17:59,877 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:18:01,794 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:18:01,795 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7e36165-28db-4712-a967-0fd134e1dace/sv-benchmarks/c/goblint-coreutils/instrumented_ptx_comb.i [2023-11-23 21:18:02,143 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7e36165-28db-4712-a967-0fd134e1dace/bin/utaipan-verify-mE87zJ7Ire/data/b045d05d5/b4ad21d011a640f2b02d78770e88f702/FLAG4ac1b5862 [2023-11-23 21:18:02,163 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7e36165-28db-4712-a967-0fd134e1dace/bin/utaipan-verify-mE87zJ7Ire/data/b045d05d5/b4ad21d011a640f2b02d78770e88f702 [2023-11-23 21:18:02,168 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:18:02,170 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:18:02,173 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:18:02,173 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:18:02,178 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:18:02,179 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:18:02" (1/1) ... [2023-11-23 21:18:02,180 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58f5669c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:02, skipping insertion in model container [2023-11-23 21:18:02,180 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:18:02" (1/1) ... [2023-11-23 21:18:02,923 INFO L177 MainTranslator]: Built tables and reachable declarations