./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem09_label24.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e1aa62c-da20-424c-8868-72d96c01b637/bin/utaipan-G1rejxKTta/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e1aa62c-da20-424c-8868-72d96c01b637/bin/utaipan-G1rejxKTta/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e1aa62c-da20-424c-8868-72d96c01b637/bin/utaipan-G1rejxKTta/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e1aa62c-da20-424c-8868-72d96c01b637/bin/utaipan-G1rejxKTta/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem09_label24.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e1aa62c-da20-424c-8868-72d96c01b637/bin/utaipan-G1rejxKTta/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e1aa62c-da20-424c-8868-72d96c01b637/bin/utaipan-G1rejxKTta --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 257ca8d47288b3d27be9b35b463de505bc4c81d0cee8c040739da4c9524c6c5c --- 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-dbf71c6-m [2022-10-17 17:36:36,241 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 17:36:36,243 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 17:36:36,290 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 17:36:36,291 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 17:36:36,295 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 17:36:36,298 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 17:36:36,305 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 17:36:36,308 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 17:36:36,316 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 17:36:36,317 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 17:36:36,320 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 17:36:36,320 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 17:36:36,324 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 17:36:36,327 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 17:36:36,329 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 17:36:36,331 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 17:36:36,333 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 17:36:36,335 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 17:36:36,345 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 17:36:36,347 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 17:36:36,348 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 17:36:36,352 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 17:36:36,353 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 17:36:36,358 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 17:36:36,359 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 17:36:36,359 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 17:36:36,361 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 17:36:36,362 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 17:36:36,363 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 17:36:36,364 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 17:36:36,366 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 17:36:36,368 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 17:36:36,370 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 17:36:36,371 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 17:36:36,371 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 17:36:36,372 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 17:36:36,373 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 17:36:36,373 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 17:36:36,374 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 17:36:36,375 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 17:36:36,376 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e1aa62c-da20-424c-8868-72d96c01b637/bin/utaipan-G1rejxKTta/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-10-17 17:36:36,428 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 17:36:36,428 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 17:36:36,429 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 17:36:36,429 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 17:36:36,430 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 17:36:36,430 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-17 17:36:36,430 INFO L138 SettingsManager]: * User list type=DISABLED [2022-10-17 17:36:36,431 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-10-17 17:36:36,431 INFO L138 SettingsManager]: * Explicit value domain=true [2022-10-17 17:36:36,431 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-10-17 17:36:36,433 INFO L138 SettingsManager]: * Octagon Domain=false [2022-10-17 17:36:36,433 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-10-17 17:36:36,433 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-10-17 17:36:36,433 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-10-17 17:36:36,434 INFO L138 SettingsManager]: * Interval Domain=false [2022-10-17 17:36:36,434 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-10-17 17:36:36,434 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-10-17 17:36:36,434 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-10-17 17:36:36,435 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 17:36:36,436 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 17:36:36,436 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 17:36:36,436 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 17:36:36,436 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 17:36:36,438 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 17:36:36,439 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 17:36:36,439 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 17:36:36,439 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 17:36:36,440 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 17:36:36,440 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 17:36:36,440 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 17:36:36,440 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 17:36:36,441 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-17 17:36:36,441 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 17:36:36,441 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 17:36:36,442 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-10-17 17:36:36,442 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 17:36:36,442 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 17:36:36,442 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-10-17 17:36:36,443 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 17:36:36,443 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 17:36:36,443 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-10-17 17:36:36,443 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_2e1aa62c-da20-424c-8868-72d96c01b637/bin/utaipan-G1rejxKTta/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e1aa62c-da20-424c-8868-72d96c01b637/bin/utaipan-G1rejxKTta Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 257ca8d47288b3d27be9b35b463de505bc4c81d0cee8c040739da4c9524c6c5c [2022-10-17 17:36:36,815 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 17:36:36,850 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 17:36:36,852 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 17:36:36,854 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 17:36:36,855 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 17:36:36,856 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e1aa62c-da20-424c-8868-72d96c01b637/bin/utaipan-G1rejxKTta/../../sv-benchmarks/c/eca-rers2012/Problem09_label24.c [2022-10-17 17:36:36,936 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e1aa62c-da20-424c-8868-72d96c01b637/bin/utaipan-G1rejxKTta/data/c2df023bf/9d2db2d41e2347359b41992697364080/FLAG6ad8b35d5 [2022-10-17 17:36:40,917 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 17:36:40,917 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e1aa62c-da20-424c-8868-72d96c01b637/sv-benchmarks/c/eca-rers2012/Problem09_label24.c [2022-10-17 17:36:41,332 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e1aa62c-da20-424c-8868-72d96c01b637/bin/utaipan-G1rejxKTta/data/c2df023bf/9d2db2d41e2347359b41992697364080/FLAG6ad8b35d5 [2022-10-17 17:36:41,795 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e1aa62c-da20-424c-8868-72d96c01b637/bin/utaipan-G1rejxKTta/data/c2df023bf/9d2db2d41e2347359b41992697364080 [2022-10-17 17:36:41,800 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 17:36:41,803 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 17:36:41,806 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 17:36:41,806 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 17:36:41,809 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 17:36:41,811 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 05:36:41" (1/1) ... [2022-10-17 17:36:41,812 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ef71b56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:36:41, skipping insertion in model container [2022-10-17 17:36:41,813 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 05:36:41" (1/1) ... [2022-10-17 17:36:41,822 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 17:36:43,806 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 17:37:11,600 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e1aa62c-da20-424c-8868-72d96c01b637/sv-benchmarks/c/eca-rers2012/Problem09_label24.c[6309060,6309073] [2022-10-17 17:37:11,731 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 17:37:11,738 INFO L203 MainTranslator]: Completed pre-run