./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-programs/Problem102_label51.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cf1a7837 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_476a11a0-c948-410e-9438-c5150d1fe5c2/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_476a11a0-c948-410e-9438-c5150d1fe5c2/bin/utaipan-verify-NcY6lQBIFX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_476a11a0-c948-410e-9438-c5150d1fe5c2/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_476a11a0-c948-410e-9438-c5150d1fe5c2/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-programs/Problem102_label51.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_476a11a0-c948-410e-9438-c5150d1fe5c2/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_476a11a0-c948-410e-9438-c5150d1fe5c2/bin/utaipan-verify-NcY6lQBIFX --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 92bd949b2561b2bcfc98679470a8de610373426cb6f389e16ec7ae492ca89a10 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:46:04,026 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:46:04,122 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_476a11a0-c948-410e-9438-c5150d1fe5c2/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-12 00:46:04,127 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:46:04,128 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:46:04,153 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:46:04,154 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:46:04,154 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:46:04,155 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:46:04,156 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:46:04,156 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:46:04,157 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:46:04,158 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:46:04,158 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 00:46:04,159 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:46:04,159 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:46:04,160 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 00:46:04,161 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 00:46:04,161 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:46:04,162 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 00:46:04,162 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 00:46:04,163 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 00:46:04,164 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:46:04,165 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:46:04,165 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 00:46:04,166 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:46:04,167 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 00:46:04,167 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:46:04,168 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:46:04,169 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:46:04,169 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:46:04,170 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 00:46:04,171 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:46:04,171 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:46:04,172 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:46:04,173 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:46:04,173 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:46:04,174 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:46:04,174 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:46:04,175 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:46:04,175 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 00:46:04,176 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 00:46:04,176 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:46:04,177 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:46:04,177 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:46:04,178 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_476a11a0-c948-410e-9438-c5150d1fe5c2/bin/utaipan-verify-NcY6lQBIFX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_476a11a0-c948-410e-9438-c5150d1fe5c2/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 92bd949b2561b2bcfc98679470a8de610373426cb6f389e16ec7ae492ca89a10 [2023-11-12 00:46:04,515 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:46:04,538 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:46:04,541 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:46:04,543 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:46:04,543 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:46:04,545 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_476a11a0-c948-410e-9438-c5150d1fe5c2/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/eca-programs/Problem102_label51.c [2023-11-12 00:46:07,773 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:46:11,227 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:46:11,228 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_476a11a0-c948-410e-9438-c5150d1fe5c2/sv-benchmarks/c/eca-programs/Problem102_label51.c [2023-11-12 00:46:11,536 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_476a11a0-c948-410e-9438-c5150d1fe5c2/bin/utaipan-verify-NcY6lQBIFX/data/4317fab74/31d898bc6aee47fe9d9e4bed7202dcdc/FLAG03011dcdb [2023-11-12 00:46:11,925 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_476a11a0-c948-410e-9438-c5150d1fe5c2/bin/utaipan-verify-NcY6lQBIFX/data/4317fab74/31d898bc6aee47fe9d9e4bed7202dcdc [2023-11-12 00:46:11,929 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:46:11,931 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:46:11,933 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:46:11,933 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:46:11,944 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:46:11,945 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:46:11" (1/1) ... [2023-11-12 00:46:11,946 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f84135c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:46:11, skipping insertion in model container [2023-11-12 00:46:11,947 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:46:11" (1/1) ... [2023-11-12 00:46:13,698 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:46:42,022 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_476a11a0-c948-410e-9438-c5150d1fe5c2/sv-benchmarks/c/eca-programs/Problem102_label51.c[5708342,5708355] [2023-11-12 00:46:42,158 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:46:42,174 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:46:57,216 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_476a11a0-c948-410e-9438-c5150d1fe5c2/sv-benchmarks/c/eca-programs/Problem102_label51.c[5708342,5708355] [2023-11-12 00:46:57,230 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:47:02,446 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:47:02,447 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:02 WrapperNode [2023-11-12 00:47:02,447 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:47:02,448 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:47:02,448 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:47:02,448 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:47:02,455 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:02" (1/1) ... [2023-11-12 00:47:03,903 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:02" (1/1) ...