./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-coreutils/instrumented_nohup_comb.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 9bd2c7ff 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_44c85ef4-03cc-425a-b775-271c58e23ea3/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44c85ef4-03cc-425a-b775-271c58e23ea3/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44c85ef4-03cc-425a-b775-271c58e23ea3/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44c85ef4-03cc-425a-b775-271c58e23ea3/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-coreutils/instrumented_nohup_comb.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44c85ef4-03cc-425a-b775-271c58e23ea3/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44c85ef4-03cc-425a-b775-271c58e23ea3/bin/utaipan-verify-t7M7D8N6sZ --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 bbb9aa21b2dd0161ca0cf44689c07f1d178791e70214ad1e1a839fa696229025 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 05:08:52,768 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 05:08:52,896 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44c85ef4-03cc-425a-b775-271c58e23ea3/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Overflow-64bit-Taipan_Default.epf [2023-11-19 05:08:52,905 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 05:08:52,906 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 05:08:52,945 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 05:08:52,946 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 05:08:52,947 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 05:08:52,948 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 05:08:52,953 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 05:08:52,953 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 05:08:52,954 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 05:08:52,954 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 05:08:52,956 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 05:08:52,956 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 05:08:52,957 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 05:08:52,957 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 05:08:52,958 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 05:08:52,958 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 05:08:52,959 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 05:08:52,959 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 05:08:52,960 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 05:08:52,961 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 05:08:52,961 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 05:08:52,962 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 05:08:52,962 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 05:08:52,963 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 05:08:52,963 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 05:08:52,964 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 05:08:52,964 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 05:08:52,965 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 05:08:52,966 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 05:08:52,966 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 05:08:52,966 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 05:08:52,967 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 05:08:52,967 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:08:52,967 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 05:08:52,967 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 05:08:52,968 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 05:08:52,968 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 05:08:52,968 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 05:08:52,969 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 05:08:52,969 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 05:08:52,969 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 05:08:52,970 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_44c85ef4-03cc-425a-b775-271c58e23ea3/bin/utaipan-verify-t7M7D8N6sZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44c85ef4-03cc-425a-b775-271c58e23ea3/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bbb9aa21b2dd0161ca0cf44689c07f1d178791e70214ad1e1a839fa696229025 [2023-11-19 05:08:53,304 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 05:08:53,344 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 05:08:53,347 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 05:08:53,349 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 05:08:53,350 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 05:08:53,351 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44c85ef4-03cc-425a-b775-271c58e23ea3/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/goblint-coreutils/instrumented_nohup_comb.i [2023-11-19 05:08:56,940 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 05:08:59,139 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 05:08:59,141 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44c85ef4-03cc-425a-b775-271c58e23ea3/sv-benchmarks/c/goblint-coreutils/instrumented_nohup_comb.i [2023-11-19 05:08:59,353 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44c85ef4-03cc-425a-b775-271c58e23ea3/bin/utaipan-verify-t7M7D8N6sZ/data/14dbe50d4/b36b7d236c0d402d81b9dc0660e890c6/FLAGa523246a7 [2023-11-19 05:08:59,375 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44c85ef4-03cc-425a-b775-271c58e23ea3/bin/utaipan-verify-t7M7D8N6sZ/data/14dbe50d4/b36b7d236c0d402d81b9dc0660e890c6 [2023-11-19 05:08:59,382 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 05:08:59,383 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 05:08:59,388 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 05:08:59,388 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 05:08:59,395 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 05:08:59,396 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:08:59" (1/1) ... [2023-11-19 05:08:59,397 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@761aba85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:08:59, skipping insertion in model container [2023-11-19 05:08:59,397 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:08:59" (1/1) ... [2023-11-19 05:09:00,378 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 05:09:30,881 WARN L635 FunctionHandler]: implicit declaration of function __builtin___memcpy_chk [2023-11-19 05:09:30,883 WARN L635 FunctionHandler]: implicit declaration of function __builtin___memmove_chk [2023-11-19 05:09:30,885 WARN L635 FunctionHandler]: implicit declaration of function __builtin___mempcpy_chk [2023-11-19 05:09:30,886 WARN L635 FunctionHandler]: implicit declaration of function __builtin___memset_chk [2023-11-19 05:09:30,900 WARN L635 FunctionHandler]: implicit declaration of function __builtin___strcpy_chk [2023-11-19 05:09:30,903 WARN L635 FunctionHandler]: implicit declaration of function __builtin___stpcpy_chk [2023-11-19 05:09:30,909 WARN L635 FunctionHandler]: implicit declaration of function __builtin___strncpy_chk [2023-11-19 05:09:30,912 WARN L635 FunctionHandler]: implicit declaration of function __builtin___strcat_chk [2023-11-19 05:09:30,913 WARN L635 FunctionHandler]: implicit declaration of function __builtin___strncat_chk [2023-11-19 05:09:30,993 WARN L635 FunctionHandler]: implicit declaration of function __builtin___vsnprintf_chk [2023-11-19 05:09:31,154 WARN L635 FunctionHandler]: implicit declaration of function __builtin_strspn [2023-11-19 05:09:32,081 WARN L635 FunctionHandler]: implicit declaration of function __builtin_strcspn [2023-11-19 05:09:32,582 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. [2023-11-19 05:09:32,584 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@785608db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:09:32, skipping insertion in model container [2023-11-19 05:09:32,584 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 05:09:32,584 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-19 05:09:32,587 INFO L158 Benchmark]: Toolchain (without parser) took 33202.22ms. Allocated memory was 188.7MB in the beginning and 346.0MB in the end (delta: 157.3MB). Free memory was 54.6MB in the beginning and 204.6MB in the end (delta: -150.0MB). Peak memory consumption was 164.4MB. Max. memory is 16.1GB. [2023-11-19 05:09:32,587 INFO L158 Benchmark]: CDTParser took 1.79ms. Allocated memory is still 134.2MB. Free memory is still 78.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 05:09:32,588 INFO L158 Benchmark]: CACSL2BoogieTranslator took 33196.91ms. Allocated memory was 188.7MB in the beginning and 346.0MB in the end (delta: 157.3MB). Free memory was 54.6MB in the beginning and 204.6MB in the end (delta: -150.0MB). Peak memory consumption was 164.4MB. Max. memory is 16.1GB. [2023-11-19 05:09:32,590 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.79ms. Allocated memory is still 134.2MB. Free memory is still 78.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 33196.91ms. Allocated memory was 188.7MB in the beginning and 346.0MB in the end (delta: 157.3MB). Free memory was 54.6MB in the beginning and 204.6MB in the end (delta: -150.0MB). Peak memory consumption was 164.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 35847]: 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_44c85ef4-03cc-425a-b775-271c58e23ea3/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44c85ef4-03cc-425a-b775-271c58e23ea3/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44c85ef4-03cc-425a-b775-271c58e23ea3/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44c85ef4-03cc-425a-b775-271c58e23ea3/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-coreutils/instrumented_nohup_comb.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44c85ef4-03cc-425a-b775-271c58e23ea3/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44c85ef4-03cc-425a-b775-271c58e23ea3/bin/utaipan-verify-t7M7D8N6sZ --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 bbb9aa21b2dd0161ca0cf44689c07f1d178791e70214ad1e1a839fa696229025 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 05:09:35,339 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 05:09:35,473 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44c85ef4-03cc-425a-b775-271c58e23ea3/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf [2023-11-19 05:09:35,487 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 05:09:35,488 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 05:09:35,544 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 05:09:35,545 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 05:09:35,545 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 05:09:35,547 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 05:09:35,553 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 05:09:35,554 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 05:09:35,554 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 05:09:35,555 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 05:09:35,557 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 05:09:35,557 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 05:09:35,558 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 05:09:35,559 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 05:09:35,560 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 05:09:35,561 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 05:09:35,562 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 05:09:35,563 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 05:09:35,563 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 05:09:35,564 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 05:09:35,564 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 05:09:35,565 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 05:09:35,565 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 05:09:35,566 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 05:09:35,566 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 05:09:35,567 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 05:09:35,567 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 05:09:35,569 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 05:09:35,569 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 05:09:35,570 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:09:35,570 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 05:09:35,571 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 05:09:35,571 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 05:09:35,571 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-19 05:09:35,572 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 05:09:35,572 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 05:09:35,573 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 05:09:35,574 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 05:09:35,574 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_44c85ef4-03cc-425a-b775-271c58e23ea3/bin/utaipan-verify-t7M7D8N6sZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44c85ef4-03cc-425a-b775-271c58e23ea3/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bbb9aa21b2dd0161ca0cf44689c07f1d178791e70214ad1e1a839fa696229025 [2023-11-19 05:09:36,069 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 05:09:36,106 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 05:09:36,110 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 05:09:36,111 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 05:09:36,111 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 05:09:36,113 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44c85ef4-03cc-425a-b775-271c58e23ea3/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/goblint-coreutils/instrumented_nohup_comb.i [2023-11-19 05:09:40,121 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 05:09:42,806 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 05:09:42,821 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44c85ef4-03cc-425a-b775-271c58e23ea3/sv-benchmarks/c/goblint-coreutils/instrumented_nohup_comb.i [2023-11-19 05:09:43,077 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44c85ef4-03cc-425a-b775-271c58e23ea3/bin/utaipan-verify-t7M7D8N6sZ/data/d7519d826/9f897561c1da405aa1019981e05cf0b9/FLAG9bd087be3 [2023-11-19 05:09:43,095 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44c85ef4-03cc-425a-b775-271c58e23ea3/bin/utaipan-verify-t7M7D8N6sZ/data/d7519d826/9f897561c1da405aa1019981e05cf0b9 [2023-11-19 05:09:43,099 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 05:09:43,101 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 05:09:43,102 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 05:09:43,103 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 05:09:43,109 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 05:09:43,110 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:09:43" (1/1) ... [2023-11-19 05:09:43,112 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69e70b03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:09:43, skipping insertion in model container [2023-11-19 05:09:43,112 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:09:43" (1/1) ... [2023-11-19 05:09:43,815 INFO L177 MainTranslator]: Built tables and reachable declarations