./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-driver-races/char_generic_nvram_nvram_llseek_read_nvram.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b5699aa Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_ac57cb63-d949-40b9-b334-a61319a4ad76/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_ac57cb63-d949-40b9-b334-a61319a4ad76/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_ac57cb63-d949-40b9-b334-a61319a4ad76/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_ac57cb63-d949-40b9-b334-a61319a4ad76/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-driver-races/char_generic_nvram_nvram_llseek_read_nvram.i -s /tmp/vcloud-vcloud-master/worker/run_dir_ac57cb63-d949-40b9-b334-a61319a4ad76/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_ac57cb63-d949-40b9-b334-a61319a4ad76/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 74f1dccb8120047dda7efee011297bdb639a689d ................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN --- Real Ultimate output --- This is Ultimate 0.1.24-6b5699a [2019-11-26 02:38:52,222 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 02:38:52,223 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 02:38:52,237 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 02:38:52,238 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 02:38:52,239 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 02:38:52,241 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 02:38:52,249 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 02:38:52,253 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 02:38:52,257 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 02:38:52,258 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 02:38:52,259 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 02:38:52,259 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 02:38:52,261 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 02:38:52,262 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 02:38:52,263 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 02:38:52,264 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 02:38:52,265 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 02:38:52,267 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 02:38:52,269 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 02:38:52,270 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 02:38:52,271 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 02:38:52,272 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 02:38:52,273 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 02:38:52,275 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 02:38:52,275 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 02:38:52,275 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 02:38:52,276 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 02:38:52,276 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 02:38:52,277 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 02:38:52,277 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 02:38:52,278 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 02:38:52,278 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 02:38:52,279 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 02:38:52,280 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 02:38:52,280 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 02:38:52,280 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 02:38:52,281 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 02:38:52,281 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 02:38:52,281 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 02:38:52,282 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 02:38:52,285 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_ac57cb63-d949-40b9-b334-a61319a4ad76/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-11-26 02:38:52,309 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 02:38:52,320 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 02:38:52,321 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-26 02:38:52,321 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-26 02:38:52,321 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-26 02:38:52,321 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-26 02:38:52,321 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-26 02:38:52,322 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-26 02:38:52,322 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-26 02:38:52,322 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-26 02:38:52,322 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-26 02:38:52,323 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-26 02:38:52,323 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-26 02:38:52,323 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-26 02:38:52,323 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-26 02:38:52,324 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 02:38:52,324 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-26 02:38:52,325 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-26 02:38:52,325 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-26 02:38:52,326 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 02:38:52,326 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-26 02:38:52,326 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 02:38:52,326 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-26 02:38:52,327 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-26 02:38:52,327 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-26 02:38:52,327 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-26 02:38:52,327 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 02:38:52,327 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 02:38:52,328 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-26 02:38:52,328 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-26 02:38:52,328 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 02:38:52,328 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 02:38:52,329 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-26 02:38:52,329 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-26 02:38:52,329 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-26 02:38:52,329 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-26 02:38:52,330 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-26 02:38:52,330 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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-vcloud-master/worker/run_dir_ac57cb63-d949-40b9-b334-a61319a4ad76/bin/utaipan 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 ! call(__VERIFIER_error())) ) 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 -> 74f1dccb8120047dda7efee011297bdb639a689d [2019-11-26 02:38:52,473 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 02:38:52,483 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 02:38:52,485 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 02:38:52,487 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 02:38:52,487 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 02:38:52,488 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_ac57cb63-d949-40b9-b334-a61319a4ad76/bin/utaipan/../../sv-benchmarks/c/pthread-driver-races/char_generic_nvram_nvram_llseek_read_nvram.i [2019-11-26 02:38:52,536 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ac57cb63-d949-40b9-b334-a61319a4ad76/bin/utaipan/data/9994b6459/980322dcf7d040a8a77c87701521a62b/FLAG331ad8271 [2019-11-26 02:38:53,265 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 02:38:53,266 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_ac57cb63-d949-40b9-b334-a61319a4ad76/sv-benchmarks/c/pthread-driver-races/char_generic_nvram_nvram_llseek_read_nvram.i [2019-11-26 02:38:53,310 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ac57cb63-d949-40b9-b334-a61319a4ad76/bin/utaipan/data/9994b6459/980322dcf7d040a8a77c87701521a62b/FLAG331ad8271 [2019-11-26 02:38:53,505 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_ac57cb63-d949-40b9-b334-a61319a4ad76/bin/utaipan/data/9994b6459/980322dcf7d040a8a77c87701521a62b [2019-11-26 02:38:53,508 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 02:38:53,509 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-26 02:38:53,510 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 02:38:53,510 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 02:38:53,513 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 02:38:53,514 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:38:53" (1/1) ... [2019-11-26 02:38:53,516 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c0c58ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:38:53, skipping insertion in model container [2019-11-26 02:38:53,516 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:38:53" (1/1) ... [2019-11-26 02:38:53,523 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 02:38:53,634 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-26 02:38:58,047 ERROR L323 MainTranslator]: Unsupported Syntax: encountered a call to a var args function and varargs usage is unknown: snprintf [2019-11-26 02:38:58,048 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@254847f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:38:58, skipping insertion in model container [2019-11-26 02:38:58,048 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-26 02:38:58,049 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2019-11-26 02:38:58,051 INFO L168 Benchmark]: Toolchain (without parser) took 4540.99 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.9 MB). Free memory was 934.0 MB in the beginning and 1.1 GB in the end (delta: -140.4 MB). Peak memory consumption was 58.1 MB. Max. memory is 11.5 GB. [2019-11-26 02:38:58,051 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:38:58,052 INFO L168 Benchmark]: CACSL2BoogieTranslator took 4538.72 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.9 MB). Free memory was 934.0 MB in the beginning and 1.1 GB in the end (delta: -140.4 MB). Peak memory consumption was 58.1 MB. Max. memory is 11.5 GB. [2019-11-26 02:38:58,054 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 4538.72 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.9 MB). Free memory was 934.0 MB in the beginning and 1.1 GB in the end (delta: -140.4 MB). Peak memory consumption was 58.1 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 4698]: Unsupported Syntax encountered a call to a var args function and varargs usage is unknown: snprintf RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...