./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/busybox-1.22.0/readlink-2.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 2329fc70 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_a7a9eb8c-f8b7-403d-a7fb-bae805572ac3/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7a9eb8c-f8b7-403d-a7fb-bae805572ac3/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7a9eb8c-f8b7-403d-a7fb-bae805572ac3/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7a9eb8c-f8b7-403d-a7fb-bae805572ac3/bin/utaipan-gh47qXpMRh/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/busybox-1.22.0/readlink-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7a9eb8c-f8b7-403d-a7fb-bae805572ac3/bin/utaipan-gh47qXpMRh/config/svcomp-DerefFreeMemtrack-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7a9eb8c-f8b7-403d-a7fb-bae805572ac3/bin/utaipan-gh47qXpMRh --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 983cec69549e2e1e8fd4af811fefcb63625f41eb81ec9e5957d0ba81a05cd15e --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 13:40:36,995 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 13:40:36,997 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 13:40:37,010 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 13:40:37,011 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 13:40:37,011 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 13:40:37,012 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 13:40:37,013 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 13:40:37,014 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 13:40:37,015 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 13:40:37,016 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 13:40:37,017 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 13:40:37,017 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 13:40:37,018 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 13:40:37,019 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 13:40:37,019 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 13:40:37,020 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 13:40:37,021 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 13:40:37,022 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 13:40:37,023 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 13:40:37,024 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 13:40:37,025 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 13:40:37,026 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 13:40:37,026 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 13:40:37,028 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 13:40:37,029 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 13:40:37,029 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 13:40:37,030 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 13:40:37,030 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 13:40:37,031 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 13:40:37,031 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 13:40:37,031 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 13:40:37,032 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 13:40:37,033 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 13:40:37,033 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 13:40:37,034 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 13:40:37,034 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 13:40:37,034 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 13:40:37,034 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 13:40:37,035 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 13:40:37,036 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 13:40:37,036 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7a9eb8c-f8b7-403d-a7fb-bae805572ac3/bin/utaipan-gh47qXpMRh/config/svcomp-DerefFreeMemtrack-64bit-Taipan_Default.epf [2022-12-14 13:40:37,052 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 13:40:37,052 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 13:40:37,052 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 13:40:37,052 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 13:40:37,053 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 13:40:37,053 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 13:40:37,053 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 13:40:37,065 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 13:40:37,066 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 13:40:37,066 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 13:40:37,066 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 13:40:37,066 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 13:40:37,066 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 13:40:37,066 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 13:40:37,066 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 13:40:37,067 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 13:40:37,067 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 13:40:37,067 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 13:40:37,067 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-14 13:40:37,068 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-14 13:40:37,068 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 13:40:37,068 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 13:40:37,068 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 13:40:37,068 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 13:40:37,068 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-12-14 13:40:37,068 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-12-14 13:40:37,069 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-12-14 13:40:37,069 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 13:40:37,069 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-14 13:40:37,069 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 13:40:37,069 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 13:40:37,069 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 13:40:37,069 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 13:40:37,070 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 13:40:37,070 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 13:40:37,070 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 13:40:37,070 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 13:40:37,070 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 13:40:37,070 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 13:40:37,070 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_a7a9eb8c-f8b7-403d-a7fb-bae805572ac3/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7a9eb8c-f8b7-403d-a7fb-bae805572ac3/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 983cec69549e2e1e8fd4af811fefcb63625f41eb81ec9e5957d0ba81a05cd15e [2022-12-14 13:40:37,259 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 13:40:37,278 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 13:40:37,280 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 13:40:37,282 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 13:40:37,282 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 13:40:37,283 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7a9eb8c-f8b7-403d-a7fb-bae805572ac3/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/busybox-1.22.0/readlink-2.i [2022-12-14 13:40:39,949 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 13:40:40,164 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 13:40:40,164 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7a9eb8c-f8b7-403d-a7fb-bae805572ac3/sv-benchmarks/c/busybox-1.22.0/readlink-2.i [2022-12-14 13:40:40,178 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7a9eb8c-f8b7-403d-a7fb-bae805572ac3/bin/utaipan-gh47qXpMRh/data/52f9004c9/989fe7572ef04e1581ec6132fd22655f/FLAG0e88d48ab [2022-12-14 13:40:40,188 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7a9eb8c-f8b7-403d-a7fb-bae805572ac3/bin/utaipan-gh47qXpMRh/data/52f9004c9/989fe7572ef04e1581ec6132fd22655f [2022-12-14 13:40:40,190 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 13:40:40,191 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 13:40:40,192 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 13:40:40,192 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 13:40:40,194 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 13:40:40,195 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 01:40:40" (1/1) ... [2022-12-14 13:40:40,195 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ae293f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:40:40, skipping insertion in model container [2022-12-14 13:40:40,195 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 01:40:40" (1/1) ... [2022-12-14 13:40:40,200 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 13:40:40,242 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 13:40:40,981 WARN L623 FunctionHandler]: Unknown extern function strerror [2022-12-14 13:40:40,982 WARN L623 FunctionHandler]: Unknown extern function strtoul [2022-12-14 13:40:40,984 WARN L623 FunctionHandler]: Unknown extern function vasprintf [2022-12-14 13:40:40,993 WARN L623 FunctionHandler]: Unknown extern function syslog [2022-12-14 13:40:40,994 WARN L623 FunctionHandler]: Unknown extern function fflush [2022-12-14 13:40:40,996 WARN L623 FunctionHandler]: Unknown extern function fflush [2022-12-14 13:40:40,997 ERROR L326 MainTranslator]: Unsupported Syntax: encountered a call to a var args function, var args are not supported at the moment: bb_perror_msg_and_die [2022-12-14 13:40:40,998 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@67509161 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:40:40, skipping insertion in model container [2022-12-14 13:40:40,998 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 13:40:40,998 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2022-12-14 13:40:40,999 INFO L158 Benchmark]: Toolchain (without parser) took 807.77ms. Allocated memory is still 172.0MB. Free memory was 134.9MB in the beginning and 107.4MB in the end (delta: 27.4MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2022-12-14 13:40:40,999 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 107.0MB. Free memory is still 79.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 13:40:41,000 INFO L158 Benchmark]: CACSL2BoogieTranslator took 806.26ms. Allocated memory is still 172.0MB. Free memory was 134.7MB in the beginning and 107.4MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2022-12-14 13:40:41,001 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 107.0MB. Free memory is still 79.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 806.26ms. Allocated memory is still 172.0MB. Free memory was 134.7MB in the beginning and 107.4MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 2359]: Unsupported Syntax encountered a call to a var args function, var args are not supported at the moment: bb_perror_msg_and_die 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_a7a9eb8c-f8b7-403d-a7fb-bae805572ac3/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7a9eb8c-f8b7-403d-a7fb-bae805572ac3/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7a9eb8c-f8b7-403d-a7fb-bae805572ac3/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7a9eb8c-f8b7-403d-a7fb-bae805572ac3/bin/utaipan-gh47qXpMRh/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/busybox-1.22.0/readlink-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7a9eb8c-f8b7-403d-a7fb-bae805572ac3/bin/utaipan-gh47qXpMRh/config/svcomp-DerefFreeMemtrack-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7a9eb8c-f8b7-403d-a7fb-bae805572ac3/bin/utaipan-gh47qXpMRh --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 983cec69549e2e1e8fd4af811fefcb63625f41eb81ec9e5957d0ba81a05cd15e --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 13:40:42,321 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 13:40:42,323 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 13:40:42,341 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 13:40:42,341 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 13:40:42,342 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 13:40:42,343 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 13:40:42,345 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 13:40:42,346 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 13:40:42,347 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 13:40:42,348 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 13:40:42,349 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 13:40:42,349 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 13:40:42,350 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 13:40:42,351 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 13:40:42,352 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 13:40:42,352 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 13:40:42,353 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 13:40:42,355 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 13:40:42,356 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 13:40:42,358 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 13:40:42,359 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 13:40:42,360 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 13:40:42,361 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 13:40:42,364 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 13:40:42,364 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 13:40:42,365 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 13:40:42,366 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 13:40:42,366 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 13:40:42,367 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 13:40:42,367 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 13:40:42,368 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 13:40:42,369 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 13:40:42,369 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 13:40:42,383 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 13:40:42,383 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 13:40:42,384 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 13:40:42,384 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 13:40:42,384 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 13:40:42,385 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 13:40:42,386 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 13:40:42,387 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7a9eb8c-f8b7-403d-a7fb-bae805572ac3/bin/utaipan-gh47qXpMRh/config/svcomp-DerefFreeMemtrack-64bit-Taipan_Bitvector.epf [2022-12-14 13:40:42,409 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 13:40:42,409 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 13:40:42,409 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 13:40:42,410 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 13:40:42,410 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 13:40:42,411 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 13:40:42,411 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 13:40:42,411 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 13:40:42,411 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 13:40:42,411 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 13:40:42,411 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 13:40:42,412 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 13:40:42,412 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-14 13:40:42,413 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-14 13:40:42,413 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 13:40:42,413 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 13:40:42,413 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 13:40:42,413 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 13:40:42,413 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-12-14 13:40:42,414 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-12-14 13:40:42,414 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-12-14 13:40:42,414 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 13:40:42,414 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-14 13:40:42,414 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-14 13:40:42,414 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-14 13:40:42,415 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 13:40:42,415 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 13:40:42,415 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-14 13:40:42,415 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 13:40:42,415 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 13:40:42,416 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 13:40:42,416 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 13:40:42,416 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-12-14 13:40:42,416 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-14 13:40:42,416 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 13:40:42,417 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-14 13:40:42,417 INFO L138 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_a7a9eb8c-f8b7-403d-a7fb-bae805572ac3/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7a9eb8c-f8b7-403d-a7fb-bae805572ac3/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 983cec69549e2e1e8fd4af811fefcb63625f41eb81ec9e5957d0ba81a05cd15e [2022-12-14 13:40:42,629 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 13:40:42,644 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 13:40:42,646 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 13:40:42,647 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 13:40:42,648 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 13:40:42,649 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7a9eb8c-f8b7-403d-a7fb-bae805572ac3/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/busybox-1.22.0/readlink-2.i [2022-12-14 13:40:45,255 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 13:40:45,507 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 13:40:45,508 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7a9eb8c-f8b7-403d-a7fb-bae805572ac3/sv-benchmarks/c/busybox-1.22.0/readlink-2.i [2022-12-14 13:40:45,523 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7a9eb8c-f8b7-403d-a7fb-bae805572ac3/bin/utaipan-gh47qXpMRh/data/18b8abc2e/af77e7ae3cb24fd0a2e378f0a9879926/FLAGdd22f71cc [2022-12-14 13:40:45,537 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7a9eb8c-f8b7-403d-a7fb-bae805572ac3/bin/utaipan-gh47qXpMRh/data/18b8abc2e/af77e7ae3cb24fd0a2e378f0a9879926 [2022-12-14 13:40:45,540 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 13:40:45,541 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 13:40:45,542 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 13:40:45,543 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 13:40:45,546 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 13:40:45,546 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 01:40:45" (1/1) ... [2022-12-14 13:40:45,547 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4dc27d52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:40:45, skipping insertion in model container [2022-12-14 13:40:45,548 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 01:40:45" (1/1) ... [2022-12-14 13:40:45,554 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 13:40:45,608 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 13:40:46,364 WARN L623 FunctionHandler]: Unknown extern function strerror [2022-12-14 13:40:46,365 WARN L623 FunctionHandler]: Unknown extern function strtoul [2022-12-14 13:40:46,367 WARN L623 FunctionHandler]: Unknown extern function vasprintf [2022-12-14 13:40:46,376 WARN L623 FunctionHandler]: Unknown extern function syslog [2022-12-14 13:40:46,377 WARN L623 FunctionHandler]: Unknown extern function fflush [2022-12-14 13:40:46,379 WARN L623 FunctionHandler]: Unknown extern function fflush [2022-12-14 13:40:46,380 ERROR L326 MainTranslator]: Unsupported Syntax: encountered a call to a var args function, var args are not supported at the moment: bb_perror_msg_and_die [2022-12-14 13:40:46,381 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@5b01939c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:40:46, skipping insertion in model container [2022-12-14 13:40:46,381 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 13:40:46,381 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2022-12-14 13:40:46,383 INFO L158 Benchmark]: Toolchain (without parser) took 840.47ms. Allocated memory was 69.2MB in the beginning and 109.1MB in the end (delta: 39.8MB). Free memory was 42.8MB in the beginning and 75.9MB in the end (delta: -33.1MB). Peak memory consumption was 19.6MB. Max. memory is 16.1GB. [2022-12-14 13:40:46,383 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 69.2MB. Free memory was 47.6MB in the beginning and 47.5MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 13:40:46,384 INFO L158 Benchmark]: CACSL2BoogieTranslator took 838.45ms. Allocated memory was 69.2MB in the beginning and 109.1MB in the end (delta: 39.8MB). Free memory was 42.6MB in the beginning and 75.9MB in the end (delta: -33.4MB). Peak memory consumption was 19.6MB. Max. memory is 16.1GB. [2022-12-14 13:40:46,385 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 69.2MB. Free memory was 47.6MB in the beginning and 47.5MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 838.45ms. Allocated memory was 69.2MB in the beginning and 109.1MB in the end (delta: 39.8MB). Free memory was 42.6MB in the beginning and 75.9MB in the end (delta: -33.4MB). Peak memory consumption was 19.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 2359]: Unsupported Syntax encountered a call to a var args function, var args are not supported at the moment: bb_perror_msg_and_die RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN