./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/busybox-1.22.0/fold-2.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37ebc00-a1f4-490e-9f2c-848fbeda8222/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37ebc00-a1f4-490e-9f2c-848fbeda8222/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37ebc00-a1f4-490e-9f2c-848fbeda8222/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37ebc00-a1f4-490e-9f2c-848fbeda8222/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/busybox-1.22.0/fold-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37ebc00-a1f4-490e-9f2c-848fbeda8222/bin/utaipan-vmNK8stdcF/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37ebc00-a1f4-490e-9f2c-848fbeda8222/bin/utaipan-vmNK8stdcF --witnessprinter.witness.filename witness.graphml --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 3d9f668f76f0a1bb4db1c87621ba1f5ce63f8bfa633e977c0afbe178905aa7e9 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 22:54:08,733 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 22:54:08,735 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 22:54:08,783 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 22:54:08,784 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 22:54:08,788 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 22:54:08,790 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 22:54:08,794 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 22:54:08,797 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 22:54:08,805 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 22:54:08,806 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 22:54:08,808 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 22:54:08,808 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 22:54:08,811 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 22:54:08,814 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 22:54:08,820 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 22:54:08,822 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 22:54:08,823 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 22:54:08,825 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 22:54:08,835 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 22:54:08,837 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 22:54:08,839 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 22:54:08,842 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 22:54:08,843 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 22:54:08,847 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 22:54:08,848 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 22:54:08,848 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 22:54:08,850 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 22:54:08,851 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 22:54:08,852 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 22:54:08,853 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 22:54:08,854 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 22:54:08,856 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 22:54:08,857 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 22:54:08,859 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 22:54:08,859 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 22:54:08,860 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 22:54:08,861 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 22:54:08,861 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 22:54:08,862 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 22:54:08,862 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 22:54:08,863 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37ebc00-a1f4-490e-9f2c-848fbeda8222/bin/utaipan-vmNK8stdcF/config/svcomp-Overflow-64bit-Taipan_Default.epf [2021-11-12 22:54:08,910 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 22:54:08,910 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 22:54:08,911 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 22:54:08,912 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 22:54:08,912 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 22:54:08,912 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 22:54:08,912 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 22:54:08,912 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-12 22:54:08,918 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 22:54:08,919 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 22:54:08,920 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-12 22:54:08,920 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-12 22:54:08,920 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 22:54:08,920 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-12 22:54:08,921 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-12 22:54:08,921 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-12 22:54:08,922 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 22:54:08,922 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-12 22:54:08,922 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-12 22:54:08,922 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 22:54:08,922 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 22:54:08,923 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 22:54:08,923 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 22:54:08,923 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-11-12 22:54:08,923 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 22:54:08,923 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 22:54:08,923 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 22:54:08,924 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 22:54:08,924 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 22:54:08,925 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:54:08,926 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 22:54:08,926 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 22:54:08,926 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 22:54:08,926 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-12 22:54:08,927 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-12 22:54:08,927 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 22:54:08,927 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 22:54:08,927 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 22:54:08,927 INFO L138 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_d37ebc00-a1f4-490e-9f2c-848fbeda8222/bin/utaipan-vmNK8stdcF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37ebc00-a1f4-490e-9f2c-848fbeda8222/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3d9f668f76f0a1bb4db1c87621ba1f5ce63f8bfa633e977c0afbe178905aa7e9 [2021-11-12 22:54:09,188 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 22:54:09,208 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 22:54:09,211 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 22:54:09,212 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 22:54:09,213 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 22:54:09,214 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37ebc00-a1f4-490e-9f2c-848fbeda8222/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/busybox-1.22.0/fold-2.i [2021-11-12 22:54:09,281 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37ebc00-a1f4-490e-9f2c-848fbeda8222/bin/utaipan-vmNK8stdcF/data/d22cd0233/6a6cd3ac64c14f84b15d8307641c94fd/FLAG8e4eb9227 [2021-11-12 22:54:09,984 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 22:54:09,985 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37ebc00-a1f4-490e-9f2c-848fbeda8222/sv-benchmarks/c/busybox-1.22.0/fold-2.i [2021-11-12 22:54:10,023 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37ebc00-a1f4-490e-9f2c-848fbeda8222/bin/utaipan-vmNK8stdcF/data/d22cd0233/6a6cd3ac64c14f84b15d8307641c94fd/FLAG8e4eb9227 [2021-11-12 22:54:10,127 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37ebc00-a1f4-490e-9f2c-848fbeda8222/bin/utaipan-vmNK8stdcF/data/d22cd0233/6a6cd3ac64c14f84b15d8307641c94fd [2021-11-12 22:54:10,130 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 22:54:10,132 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 22:54:10,134 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 22:54:10,135 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 22:54:10,138 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 22:54:10,139 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:54:10" (1/1) ... [2021-11-12 22:54:10,142 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6bc319f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:54:10, skipping insertion in model container [2021-11-12 22:54:10,142 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:54:10" (1/1) ... [2021-11-12 22:54:10,149 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 22:54:10,262 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 22:54:11,504 ERROR L326 MainTranslator]: Unsupported Syntax: encountered a call to a var args function, var args are not supported at the moment: bb_perror_msg [2021-11-12 22:54:11,505 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@4d24807d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:54:11, skipping insertion in model container [2021-11-12 22:54:11,506 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 22:54:11,506 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-12 22:54:11,508 INFO L158 Benchmark]: Toolchain (without parser) took 1374.76ms. Allocated memory is still 113.2MB. Free memory was 65.6MB in the beginning and 71.7MB in the end (delta: -6.1MB). Peak memory consumption was 7.9MB. Max. memory is 16.1GB. [2021-11-12 22:54:11,510 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 113.2MB. Free memory is still 87.2MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-12 22:54:11,511 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1371.64ms. Allocated memory is still 113.2MB. Free memory was 65.4MB in the beginning and 71.7MB in the end (delta: -6.3MB). Peak memory consumption was 7.9MB. Max. memory is 16.1GB. [2021-11-12 22:54:11,514 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 113.2MB. Free memory is still 87.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1371.64ms. Allocated memory is still 113.2MB. Free memory was 65.4MB in the beginning and 71.7MB in the end (delta: -6.3MB). Peak memory consumption was 7.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 2310]: Unsupported Syntax encountered a call to a var args function, var args are not supported at the moment: bb_perror_msg 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 No suitable file found in config dir /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37ebc00-a1f4-490e-9f2c-848fbeda8222/bin/utaipan-vmNK8stdcF/config using search string *Overflow*64bit*_Bitvector*.epf No suitable settings file found using Overflow*64bit*_Bitvector ERROR: UNSUPPORTED PROPERTY Writing output log to file Ultimate.log Result: UNKNOWN