./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 527bcce2 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_eba0406a-df73-4d66-b343-083c051ba8fb/bin/utaipan-verify-QoSU8krkJ5/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba0406a-df73-4d66-b343-083c051ba8fb/bin/utaipan-verify-QoSU8krkJ5/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba0406a-df73-4d66-b343-083c051ba8fb/bin/utaipan-verify-QoSU8krkJ5/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba0406a-df73-4d66-b343-083c051ba8fb/bin/utaipan-verify-QoSU8krkJ5/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-coreutils/instrumented_cksum_comb.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba0406a-df73-4d66-b343-083c051ba8fb/bin/utaipan-verify-QoSU8krkJ5/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba0406a-df73-4d66-b343-083c051ba8fb/bin/utaipan-verify-QoSU8krkJ5 --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-527bcce [2023-11-21 19:02:08,208 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 19:02:08,323 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba0406a-df73-4d66-b343-083c051ba8fb/bin/utaipan-verify-QoSU8krkJ5/config/svcomp-Overflow-64bit-Taipan_Default.epf [2023-11-21 19:02:08,330 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 19:02:08,330 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 19:02:08,362 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 19:02:08,363 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 19:02:08,363 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 19:02:08,364 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 19:02:08,365 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 19:02:08,365 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-21 19:02:08,366 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-21 19:02:08,367 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-21 19:02:08,367 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-21 19:02:08,368 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-21 19:02:08,369 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-21 19:02:08,369 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-21 19:02:08,370 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-21 19:02:08,371 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-21 19:02:08,372 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-21 19:02:08,372 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-21 19:02:08,373 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-21 19:02:08,374 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 19:02:08,374 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 19:02:08,375 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 19:02:08,375 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 19:02:08,376 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 19:02:08,377 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 19:02:08,377 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 19:02:08,378 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-21 19:02:08,378 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 19:02:08,379 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 19:02:08,379 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 19:02:08,380 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 19:02:08,381 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 19:02:08,381 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 19:02:08,382 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 19:02:08,382 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 19:02:08,383 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 19:02:08,383 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 19:02:08,384 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-21 19:02:08,385 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 19:02:08,385 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 19:02:08,386 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 19:02:08,386 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-21 19:02:08,387 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 19:02:08,387 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_eba0406a-df73-4d66-b343-083c051ba8fb/bin/utaipan-verify-QoSU8krkJ5/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba0406a-df73-4d66-b343-083c051ba8fb/bin/utaipan-verify-QoSU8krkJ5 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 43a21227e28ea1d3dea5c269e9a8aec5d2ff980f267bc89951928cd0fc79730a [2023-11-21 19:02:08,685 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 19:02:08,712 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 19:02:08,715 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 19:02:08,716 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 19:02:08,717 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 19:02:08,718 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba0406a-df73-4d66-b343-083c051ba8fb/bin/utaipan-verify-QoSU8krkJ5/../../sv-benchmarks/c/goblint-coreutils/instrumented_cksum_comb.i [2023-11-21 19:02:11,970 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 19:02:13,956 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 19:02:13,957 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba0406a-df73-4d66-b343-083c051ba8fb/sv-benchmarks/c/goblint-coreutils/instrumented_cksum_comb.i [2023-11-21 19:02:14,142 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba0406a-df73-4d66-b343-083c051ba8fb/bin/utaipan-verify-QoSU8krkJ5/data/155c4ed87/be6d650ba14a4f32bef76d6da926a3a3/FLAG708586673 [2023-11-21 19:02:14,164 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba0406a-df73-4d66-b343-083c051ba8fb/bin/utaipan-verify-QoSU8krkJ5/data/155c4ed87/be6d650ba14a4f32bef76d6da926a3a3 [2023-11-21 19:02:14,172 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 19:02:14,174 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 19:02:14,176 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 19:02:14,177 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 19:02:14,183 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 19:02:14,184 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 07:02:14" (1/1) ... [2023-11-21 19:02:14,185 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4551d5a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:02:14, skipping insertion in model container [2023-11-21 19:02:14,186 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 07:02:14" (1/1) ... [2023-11-21 19:02:14,767 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 19:02:39,274 WARN L635 FunctionHandler]: implicit declaration of function __builtin___memcpy_chk [2023-11-21 19:02:39,277 WARN L635 FunctionHandler]: implicit declaration of function __builtin___memmove_chk [2023-11-21 19:02:39,278 WARN L635 FunctionHandler]: implicit declaration of function __builtin___mempcpy_chk [2023-11-21 19:02:39,279 WARN L635 FunctionHandler]: implicit declaration of function __builtin___memset_chk [2023-11-21 19:02:39,289 WARN L635 FunctionHandler]: implicit declaration of function __builtin___strcpy_chk [2023-11-21 19:02:39,291 WARN L635 FunctionHandler]: implicit declaration of function __builtin___stpcpy_chk [2023-11-21 19:02:39,294 WARN L635 FunctionHandler]: implicit declaration of function __builtin___strncpy_chk [2023-11-21 19:02:39,296 WARN L635 FunctionHandler]: implicit declaration of function __builtin___strcat_chk [2023-11-21 19:02:39,299 WARN L635 FunctionHandler]: implicit declaration of function __builtin___strncat_chk [2023-11-21 19:02:39,371 WARN L635 FunctionHandler]: implicit declaration of function __builtin___vsnprintf_chk [2023-11-21 19:02:39,542 WARN L635 FunctionHandler]: implicit declaration of function __builtin_strspn [2023-11-21 19:02:40,332 WARN L635 FunctionHandler]: implicit declaration of function __builtin_strcspn [2023-11-21 19:02:40,646 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. [2023-11-21 19:02:40,647 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@3921942a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:02:40, skipping insertion in model container [2023-11-21 19:02:40,647 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 19:02:40,648 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-21 19:02:40,650 INFO L158 Benchmark]: Toolchain (without parser) took 26474.45ms. Allocated memory was 237.0MB in the beginning and 343.9MB in the end (delta: 107.0MB). Free memory was 165.1MB in the beginning and 108.5MB in the end (delta: 56.7MB). Peak memory consumption was 214.8MB. Max. memory is 16.1GB. [2023-11-21 19:02:40,651 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 125.8MB. Free memory was 92.6MB in the beginning and 92.5MB in the end (delta: 69.6kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 19:02:40,652 INFO L158 Benchmark]: CACSL2BoogieTranslator took 26471.05ms. Allocated memory was 237.0MB in the beginning and 343.9MB in the end (delta: 107.0MB). Free memory was 164.0MB in the beginning and 108.5MB in the end (delta: 55.5MB). Peak memory consumption was 210.6MB. Max. memory is 16.1GB. [2023-11-21 19:02:40,655 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 125.8MB. Free memory was 92.6MB in the beginning and 92.5MB in the end (delta: 69.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 26471.05ms. Allocated memory was 237.0MB in the beginning and 343.9MB in the end (delta: 107.0MB). Free memory was 164.0MB in the beginning and 108.5MB in the end (delta: 55.5MB). Peak memory consumption was 210.6MB. 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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba0406a-df73-4d66-b343-083c051ba8fb/bin/utaipan-verify-QoSU8krkJ5/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba0406a-df73-4d66-b343-083c051ba8fb/bin/utaipan-verify-QoSU8krkJ5/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba0406a-df73-4d66-b343-083c051ba8fb/bin/utaipan-verify-QoSU8krkJ5/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba0406a-df73-4d66-b343-083c051ba8fb/bin/utaipan-verify-QoSU8krkJ5/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-coreutils/instrumented_cksum_comb.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba0406a-df73-4d66-b343-083c051ba8fb/bin/utaipan-verify-QoSU8krkJ5/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba0406a-df73-4d66-b343-083c051ba8fb/bin/utaipan-verify-QoSU8krkJ5 --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-527bcce [2023-11-21 19:02:43,010 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 19:02:43,094 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba0406a-df73-4d66-b343-083c051ba8fb/bin/utaipan-verify-QoSU8krkJ5/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf [2023-11-21 19:02:43,100 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 19:02:43,101 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 19:02:43,128 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 19:02:43,129 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 19:02:43,130 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 19:02:43,131 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 19:02:43,131 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 19:02:43,132 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-21 19:02:43,133 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-21 19:02:43,133 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-21 19:02:43,134 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-21 19:02:43,135 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-21 19:02:43,135 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-21 19:02:43,136 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 19:02:43,137 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 19:02:43,138 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 19:02:43,138 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 19:02:43,139 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 19:02:43,140 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 19:02:43,141 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-21 19:02:43,141 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-21 19:02:43,142 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-21 19:02:43,143 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-21 19:02:43,143 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 19:02:43,144 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 19:02:43,144 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 19:02:43,145 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 19:02:43,146 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 19:02:43,146 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 19:02:43,147 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 19:02:43,147 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 19:02:43,148 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 19:02:43,148 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 19:02:43,149 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 19:02:43,149 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-21 19:02:43,149 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-21 19:02:43,150 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 19:02:43,150 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 19:02:43,150 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-21 19:02:43,151 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 19:02:43,151 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_eba0406a-df73-4d66-b343-083c051ba8fb/bin/utaipan-verify-QoSU8krkJ5/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba0406a-df73-4d66-b343-083c051ba8fb/bin/utaipan-verify-QoSU8krkJ5 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 43a21227e28ea1d3dea5c269e9a8aec5d2ff980f267bc89951928cd0fc79730a [2023-11-21 19:02:43,591 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 19:02:43,620 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 19:02:43,623 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 19:02:43,625 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 19:02:43,625 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 19:02:43,627 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba0406a-df73-4d66-b343-083c051ba8fb/bin/utaipan-verify-QoSU8krkJ5/../../sv-benchmarks/c/goblint-coreutils/instrumented_cksum_comb.i [2023-11-21 19:02:46,802 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 19:02:48,922 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 19:02:48,923 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba0406a-df73-4d66-b343-083c051ba8fb/sv-benchmarks/c/goblint-coreutils/instrumented_cksum_comb.i [2023-11-21 19:02:49,059 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba0406a-df73-4d66-b343-083c051ba8fb/bin/utaipan-verify-QoSU8krkJ5/data/92b246ebc/4fba90d8651943ae846e13e4c5995574/FLAG7dd89d93e [2023-11-21 19:02:49,074 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba0406a-df73-4d66-b343-083c051ba8fb/bin/utaipan-verify-QoSU8krkJ5/data/92b246ebc/4fba90d8651943ae846e13e4c5995574 [2023-11-21 19:02:49,077 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 19:02:49,079 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 19:02:49,080 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 19:02:49,080 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 19:02:49,086 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 19:02:49,086 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 07:02:49" (1/1) ... [2023-11-21 19:02:49,088 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34b980ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:02:49, skipping insertion in model container [2023-11-21 19:02:49,088 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 07:02:49" (1/1) ... [2023-11-21 19:02:49,761 INFO L177 MainTranslator]: Built tables and reachable declarations