./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-coreutils/instrumented_dd_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_728d025f-1181-4f3a-97bc-3cc90484f908/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_728d025f-1181-4f3a-97bc-3cc90484f908/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_728d025f-1181-4f3a-97bc-3cc90484f908/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_728d025f-1181-4f3a-97bc-3cc90484f908/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-coreutils/instrumented_dd_comb.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_728d025f-1181-4f3a-97bc-3cc90484f908/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_728d025f-1181-4f3a-97bc-3cc90484f908/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 bac1c479ecb94b6deb95126013b1c4dbd0d92e2f4672788b7bb567e3d6bf83aa --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:48:10,952 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:48:11,017 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_728d025f-1181-4f3a-97bc-3cc90484f908/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Overflow-64bit-Taipan_Default.epf [2023-11-12 00:48:11,023 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:48:11,024 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:48:11,049 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:48:11,050 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:48:11,051 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:48:11,051 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:48:11,052 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:48:11,053 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:48:11,053 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:48:11,054 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:48:11,054 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 00:48:11,055 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:48:11,056 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:48:11,056 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 00:48:11,057 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 00:48:11,057 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:48:11,058 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 00:48:11,058 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 00:48:11,059 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 00:48:11,060 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:48:11,060 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:48:11,060 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:48:11,061 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:48:11,061 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:48:11,062 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:48:11,062 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:48:11,063 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-12 00:48:11,063 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 00:48:11,064 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:48:11,064 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:48:11,064 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:48:11,065 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:48:11,065 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:48:11,066 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:48:11,066 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:48:11,067 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:48:11,067 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 00:48:11,068 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 00:48:11,068 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:48:11,069 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:48:11,069 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:48:11,069 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_728d025f-1181-4f3a-97bc-3cc90484f908/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_728d025f-1181-4f3a-97bc-3cc90484f908/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bac1c479ecb94b6deb95126013b1c4dbd0d92e2f4672788b7bb567e3d6bf83aa [2023-11-12 00:48:11,302 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:48:11,324 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:48:11,327 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:48:11,328 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:48:11,329 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:48:11,330 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_728d025f-1181-4f3a-97bc-3cc90484f908/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/goblint-coreutils/instrumented_dd_comb.i [2023-11-12 00:48:14,495 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:48:16,624 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:48:16,625 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_728d025f-1181-4f3a-97bc-3cc90484f908/sv-benchmarks/c/goblint-coreutils/instrumented_dd_comb.i [2023-11-12 00:48:17,076 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_728d025f-1181-4f3a-97bc-3cc90484f908/bin/utaipan-verify-NcY6lQBIFX/data/f2163e5dd/a1409782af6c447dbd167f96dff234ab/FLAG544ba1186 [2023-11-12 00:48:17,097 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_728d025f-1181-4f3a-97bc-3cc90484f908/bin/utaipan-verify-NcY6lQBIFX/data/f2163e5dd/a1409782af6c447dbd167f96dff234ab [2023-11-12 00:48:17,107 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:48:17,109 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:48:17,114 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:48:17,114 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:48:17,122 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:48:17,123 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:48:17" (1/1) ... [2023-11-12 00:48:17,124 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@200f3c5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:17, skipping insertion in model container [2023-11-12 00:48:17,124 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:48:17" (1/1) ... [2023-11-12 00:48:17,896 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:48:48,703 WARN L635 FunctionHandler]: implicit declaration of function __builtin___memcpy_chk [2023-11-12 00:48:48,704 WARN L635 FunctionHandler]: implicit declaration of function __builtin___memmove_chk [2023-11-12 00:48:48,705 WARN L635 FunctionHandler]: implicit declaration of function __builtin___mempcpy_chk [2023-11-12 00:48:48,707 WARN L635 FunctionHandler]: implicit declaration of function __builtin___memset_chk [2023-11-12 00:48:48,720 WARN L635 FunctionHandler]: implicit declaration of function __builtin___strcpy_chk [2023-11-12 00:48:48,721 WARN L635 FunctionHandler]: implicit declaration of function __builtin___stpcpy_chk [2023-11-12 00:48:48,722 WARN L635 FunctionHandler]: implicit declaration of function __builtin___strncpy_chk [2023-11-12 00:48:48,726 WARN L635 FunctionHandler]: implicit declaration of function __builtin___strcat_chk [2023-11-12 00:48:48,733 WARN L635 FunctionHandler]: implicit declaration of function __builtin___strncat_chk [2023-11-12 00:48:48,819 WARN L635 FunctionHandler]: implicit declaration of function __builtin___vsnprintf_chk [2023-11-12 00:48:48,935 WARN L635 FunctionHandler]: implicit declaration of function __builtin_strspn [2023-11-12 00:48:49,873 WARN L635 FunctionHandler]: implicit declaration of function __builtin_strcspn [2023-11-12 00:48:50,274 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 00:48:50,276 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@61160d52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:50, skipping insertion in model container [2023-11-12 00:48:50,276 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:48:50,277 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-12 00:48:50,280 INFO L158 Benchmark]: Toolchain (without parser) took 33169.08ms. Allocated memory was 190.8MB in the beginning and 398.5MB in the end (delta: 207.6MB). Free memory was 123.9MB in the beginning and 181.8MB in the end (delta: -58.0MB). Peak memory consumption was 226.6MB. Max. memory is 16.1GB. [2023-11-12 00:48:50,280 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 117.4MB. Free memory is still 72.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:48:50,282 INFO L158 Benchmark]: CACSL2BoogieTranslator took 33163.12ms. Allocated memory was 190.8MB in the beginning and 398.5MB in the end (delta: 207.6MB). Free memory was 123.9MB in the beginning and 181.8MB in the end (delta: -58.0MB). Peak memory consumption was 226.6MB. Max. memory is 16.1GB. [2023-11-12 00:48:50,284 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 117.4MB. Free memory is still 72.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 33163.12ms. Allocated memory was 190.8MB in the beginning and 398.5MB in the end (delta: 207.6MB). Free memory was 123.9MB in the beginning and 181.8MB in the end (delta: -58.0MB). Peak memory consumption was 226.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 36501]: 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_728d025f-1181-4f3a-97bc-3cc90484f908/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_728d025f-1181-4f3a-97bc-3cc90484f908/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_728d025f-1181-4f3a-97bc-3cc90484f908/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_728d025f-1181-4f3a-97bc-3cc90484f908/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-coreutils/instrumented_dd_comb.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_728d025f-1181-4f3a-97bc-3cc90484f908/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_728d025f-1181-4f3a-97bc-3cc90484f908/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 bac1c479ecb94b6deb95126013b1c4dbd0d92e2f4672788b7bb567e3d6bf83aa --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:48:53,077 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:48:53,230 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_728d025f-1181-4f3a-97bc-3cc90484f908/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf [2023-11-12 00:48:53,240 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:48:53,241 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:48:53,292 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:48:53,293 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:48:53,294 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:48:53,295 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:48:53,301 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:48:53,302 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:48:53,302 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:48:53,303 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:48:53,305 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:48:53,306 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:48:53,306 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:48:53,307 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:48:53,308 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:48:53,308 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:48:53,309 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:48:53,310 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:48:53,310 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:48:53,311 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-12 00:48:53,311 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-12 00:48:53,312 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-12 00:48:53,312 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-12 00:48:53,313 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 00:48:53,313 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:48:53,314 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:48:53,314 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:48:53,315 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 00:48:53,315 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:48:53,316 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:48:53,316 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:48:53,317 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:48:53,317 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:48:53,317 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-12 00:48:53,317 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-12 00:48:53,318 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:48:53,319 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:48:53,319 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:48:53,320 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_728d025f-1181-4f3a-97bc-3cc90484f908/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_728d025f-1181-4f3a-97bc-3cc90484f908/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bac1c479ecb94b6deb95126013b1c4dbd0d92e2f4672788b7bb567e3d6bf83aa [2023-11-12 00:48:53,825 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:48:53,862 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:48:53,868 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:48:53,870 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:48:53,871 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:48:53,873 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_728d025f-1181-4f3a-97bc-3cc90484f908/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/goblint-coreutils/instrumented_dd_comb.i [2023-11-12 00:48:57,116 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:48:59,347 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:48:59,347 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_728d025f-1181-4f3a-97bc-3cc90484f908/sv-benchmarks/c/goblint-coreutils/instrumented_dd_comb.i [2023-11-12 00:48:59,593 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_728d025f-1181-4f3a-97bc-3cc90484f908/bin/utaipan-verify-NcY6lQBIFX/data/d6676b184/f9e89acae962487cbf605732231308c5/FLAGcdf27913a [2023-11-12 00:48:59,614 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_728d025f-1181-4f3a-97bc-3cc90484f908/bin/utaipan-verify-NcY6lQBIFX/data/d6676b184/f9e89acae962487cbf605732231308c5 [2023-11-12 00:48:59,620 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:48:59,621 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:48:59,625 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:48:59,625 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:48:59,631 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:48:59,632 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:48:59" (1/1) ... [2023-11-12 00:48:59,633 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ebfd551 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:59, skipping insertion in model container [2023-11-12 00:48:59,634 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:48:59" (1/1) ... [2023-11-12 00:49:00,329 INFO L177 MainTranslator]: Built tables and reachable declarations