./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem09_label09.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 527bcce2 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_c0afeeef-ad95-4a60-8ff8-ca0028eeb847/bin/utaipan-verify-QoSU8krkJ5/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0afeeef-ad95-4a60-8ff8-ca0028eeb847/bin/utaipan-verify-QoSU8krkJ5/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0afeeef-ad95-4a60-8ff8-ca0028eeb847/bin/utaipan-verify-QoSU8krkJ5/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0afeeef-ad95-4a60-8ff8-ca0028eeb847/bin/utaipan-verify-QoSU8krkJ5/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem09_label09.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0afeeef-ad95-4a60-8ff8-ca0028eeb847/bin/utaipan-verify-QoSU8krkJ5/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0afeeef-ad95-4a60-8ff8-ca0028eeb847/bin/utaipan-verify-QoSU8krkJ5 --witnessprinter.witness.filename witness --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 8040dc95b6b58da8bbaf0b04d59277f50cfb98383e0605f062d9d9b27c5791d8 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 18:59:36,871 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 18:59:36,975 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0afeeef-ad95-4a60-8ff8-ca0028eeb847/bin/utaipan-verify-QoSU8krkJ5/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-21 18:59:36,986 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 18:59:36,988 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 18:59:37,039 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 18:59:37,041 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 18:59:37,041 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 18:59:37,042 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 18:59:37,049 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 18:59:37,050 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-21 18:59:37,051 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-21 18:59:37,052 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-21 18:59:37,054 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-21 18:59:37,055 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-21 18:59:37,055 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-21 18:59:37,055 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-21 18:59:37,056 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-21 18:59:37,057 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-21 18:59:37,057 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-21 18:59:37,058 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-21 18:59:37,058 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-21 18:59:37,060 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 18:59:37,060 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 18:59:37,061 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 18:59:37,061 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 18:59:37,061 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 18:59:37,062 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 18:59:37,062 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 18:59:37,063 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 18:59:37,064 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 18:59:37,065 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 18:59:37,065 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 18:59:37,065 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 18:59:37,065 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 18:59:37,066 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 18:59:37,066 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 18:59:37,066 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 18:59:37,067 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 18:59:37,067 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 18:59:37,067 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 18:59:37,068 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-21 18:59:37,069 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 18:59:37,069 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 18:59:37,069 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 18:59:37,070 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-21 18:59:37,070 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 18:59:37,070 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_c0afeeef-ad95-4a60-8ff8-ca0028eeb847/bin/utaipan-verify-QoSU8krkJ5/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0afeeef-ad95-4a60-8ff8-ca0028eeb847/bin/utaipan-verify-QoSU8krkJ5 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8040dc95b6b58da8bbaf0b04d59277f50cfb98383e0605f062d9d9b27c5791d8 [2023-11-21 18:59:37,383 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 18:59:37,416 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 18:59:37,418 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 18:59:37,421 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 18:59:37,422 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 18:59:37,423 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0afeeef-ad95-4a60-8ff8-ca0028eeb847/bin/utaipan-verify-QoSU8krkJ5/../../sv-benchmarks/c/eca-rers2012/Problem09_label09.c [2023-11-21 18:59:40,585 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 18:59:44,547 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 18:59:44,548 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0afeeef-ad95-4a60-8ff8-ca0028eeb847/sv-benchmarks/c/eca-rers2012/Problem09_label09.c [2023-11-21 18:59:44,858 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0afeeef-ad95-4a60-8ff8-ca0028eeb847/bin/utaipan-verify-QoSU8krkJ5/data/d701dd3fc/d213042a8cbe4d5f8aa15d18706f44f1/FLAG2efa0cc3b [2023-11-21 18:59:44,871 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0afeeef-ad95-4a60-8ff8-ca0028eeb847/bin/utaipan-verify-QoSU8krkJ5/data/d701dd3fc/d213042a8cbe4d5f8aa15d18706f44f1 [2023-11-21 18:59:44,873 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 18:59:44,874 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 18:59:44,876 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 18:59:44,876 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 18:59:44,881 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 18:59:44,882 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:59:44" (1/1) ... [2023-11-21 18:59:44,883 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2fb8cf77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:59:44, skipping insertion in model container [2023-11-21 18:59:44,884 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:59:44" (1/1) ... [2023-11-21 18:59:47,144 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 19:00:15,846 WARN L240 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_c0afeeef-ad95-4a60-8ff8-ca0028eeb847/sv-benchmarks/c/eca-rers2012/Problem09_label09.c[6307845,6307858] [2023-11-21 19:00:15,979 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 19:00:15,990 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 19:00:31,380 WARN L240 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_c0afeeef-ad95-4a60-8ff8-ca0028eeb847/sv-benchmarks/c/eca-rers2012/Problem09_label09.c[6307845,6307858] [2023-11-21 19:00:31,386 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 19:00:38,185 INFO L206 MainTranslator]: Completed translation [2023-11-21 19:00:38,186 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:00:38 WrapperNode [2023-11-21 19:00:38,186 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 19:00:38,187 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 19:00:38,188 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 19:00:38,188 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 19:00:38,195 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:00:38" (1/1) ... [2023-11-21 19:00:39,391 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:00:38" (1/1) ...