./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/array-lopstr16/single_elem_safe.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a0165632 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_7a4d79e6-0d61-480c-81d1-c272ce843da4/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a4d79e6-0d61-480c-81d1-c272ce843da4/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a4d79e6-0d61-480c-81d1-c272ce843da4/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a4d79e6-0d61-480c-81d1-c272ce843da4/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/array-lopstr16/single_elem_safe.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a4d79e6-0d61-480c-81d1-c272ce843da4/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a4d79e6-0d61-480c-81d1-c272ce843da4/bin/utaipan-verify-YMUCfTKeje --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 32bit --witnessprinter.graph.data.programhash f1aed9bc44add9424c35127ba8c0166402387241540742ea765fb4b7385c8271 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 07:21:08,971 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 07:21:09,078 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a4d79e6-0d61-480c-81d1-c272ce843da4/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Overflow-32bit-Taipan_Default.epf [2024-11-09 07:21:09,084 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 07:21:09,085 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 07:21:09,127 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 07:21:09,128 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 07:21:09,128 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 07:21:09,129 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 07:21:09,129 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 07:21:09,129 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 07:21:09,130 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 07:21:09,130 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 07:21:09,130 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 07:21:09,131 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 07:21:09,131 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 07:21:09,131 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 07:21:09,132 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 07:21:09,132 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 07:21:09,133 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 07:21:09,133 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 07:21:09,134 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 07:21:09,134 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 07:21:09,135 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 07:21:09,135 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 07:21:09,136 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 07:21:09,136 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 07:21:09,136 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 07:21:09,137 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 07:21:09,137 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 07:21:09,137 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 07:21:09,138 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 07:21:09,138 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-09 07:21:09,138 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 07:21:09,139 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 07:21:09,139 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 07:21:09,139 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 07:21:09,140 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 07:21:09,140 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 07:21:09,140 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 07:21:09,141 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 07:21:09,141 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 07:21:09,142 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 07:21:09,142 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 07:21:09,142 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 07:21:09,143 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 07:21:09,143 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 07:21:09,143 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 07:21:09,144 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 07:21:09,144 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_7a4d79e6-0d61-480c-81d1-c272ce843da4/bin/utaipan-verify-YMUCfTKeje/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a4d79e6-0d61-480c-81d1-c272ce843da4/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f1aed9bc44add9424c35127ba8c0166402387241540742ea765fb4b7385c8271 [2024-11-09 07:21:09,440 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 07:21:09,468 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 07:21:09,472 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 07:21:09,474 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 07:21:09,474 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 07:21:09,475 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a4d79e6-0d61-480c-81d1-c272ce843da4/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/array-lopstr16/single_elem_safe.i Unable to find full path for "g++" [2024-11-09 07:21:11,554 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 07:21:11,737 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 07:21:11,738 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a4d79e6-0d61-480c-81d1-c272ce843da4/sv-benchmarks/c/array-lopstr16/single_elem_safe.i [2024-11-09 07:21:11,748 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a4d79e6-0d61-480c-81d1-c272ce843da4/bin/utaipan-verify-YMUCfTKeje/data/d434b74eb/4b1fc42e6d104e139fb5d7765a99f441/FLAG83fa50a60 [2024-11-09 07:21:11,777 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a4d79e6-0d61-480c-81d1-c272ce843da4/bin/utaipan-verify-YMUCfTKeje/data/d434b74eb/4b1fc42e6d104e139fb5d7765a99f441 [2024-11-09 07:21:11,783 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 07:21:11,785 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 07:21:11,786 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 07:21:11,787 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 07:21:11,796 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 07:21:11,797 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:21:11" (1/1) ... [2024-11-09 07:21:11,798 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3171290c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:21:11, skipping insertion in model container [2024-11-09 07:21:11,798 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:21:11" (1/1) ... [2024-11-09 07:21:11,832 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 07:21:12,114 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 07:21:19,951 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 07:21:19,977 INFO L210 PostProcessor]: Analyzing one entry point: main