./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem18_label06.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 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_bc5f6a27-b758-4750-af0e-fed5978b3987/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc5f6a27-b758-4750-af0e-fed5978b3987/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc5f6a27-b758-4750-af0e-fed5978b3987/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc5f6a27-b758-4750-af0e-fed5978b3987/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem18_label06.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc5f6a27-b758-4750-af0e-fed5978b3987/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc5f6a27-b758-4750-af0e-fed5978b3987/bin/utaipan-verify-YMUCfTKeje --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 644bc7b209af5af56939692f0e84aab546b5c89195a80c816e6e49bea783a8f8 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 06:57:44,108 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 06:57:44,201 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc5f6a27-b758-4750-af0e-fed5978b3987/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-09 06:57:44,208 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 06:57:44,208 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 06:57:44,246 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 06:57:44,247 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 06:57:44,248 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 06:57:44,249 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 06:57:44,250 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 06:57:44,251 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 06:57:44,251 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 06:57:44,252 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 06:57:44,252 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 06:57:44,253 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 06:57:44,255 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 06:57:44,255 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 06:57:44,255 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 06:57:44,256 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 06:57:44,256 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 06:57:44,257 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 06:57:44,261 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 06:57:44,262 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 06:57:44,262 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 06:57:44,262 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 06:57:44,262 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 06:57:44,263 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 06:57:44,263 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 06:57:44,263 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 06:57:44,263 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 06:57:44,263 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 06:57:44,264 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 06:57:44,264 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 06:57:44,264 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 06:57:44,264 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 06:57:44,265 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 06:57:44,266 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 06:57:44,267 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 06:57:44,267 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:57:44,267 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 06:57:44,267 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 06:57:44,268 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 06:57:44,268 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 06:57:44,268 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 06:57:44,269 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 06:57:44,269 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 06:57:44,269 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 06:57:44,269 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_bc5f6a27-b758-4750-af0e-fed5978b3987/bin/utaipan-verify-YMUCfTKeje/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc5f6a27-b758-4750-af0e-fed5978b3987/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 644bc7b209af5af56939692f0e84aab546b5c89195a80c816e6e49bea783a8f8 [2024-11-09 06:57:44,546 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 06:57:44,580 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 06:57:44,582 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 06:57:44,585 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 06:57:44,586 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 06:57:44,587 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc5f6a27-b758-4750-af0e-fed5978b3987/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/eca-rers2012/Problem18_label06.c Unable to find full path for "g++" [2024-11-09 06:57:46,664 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 06:57:47,258 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 06:57:47,259 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc5f6a27-b758-4750-af0e-fed5978b3987/sv-benchmarks/c/eca-rers2012/Problem18_label06.c [2024-11-09 06:57:47,297 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc5f6a27-b758-4750-af0e-fed5978b3987/bin/utaipan-verify-YMUCfTKeje/data/56638de7f/b3b63fe432f04224842c99ff21238a80/FLAGfa91d603b [2024-11-09 06:57:47,322 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc5f6a27-b758-4750-af0e-fed5978b3987/bin/utaipan-verify-YMUCfTKeje/data/56638de7f/b3b63fe432f04224842c99ff21238a80 [2024-11-09 06:57:47,325 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 06:57:47,328 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 06:57:47,330 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 06:57:47,332 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 06:57:47,338 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 06:57:47,339 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:57:47" (1/1) ... [2024-11-09 06:57:47,340 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a4e6f72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:57:47, skipping insertion in model container [2024-11-09 06:57:47,343 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:57:47" (1/1) ... [2024-11-09 06:57:47,456 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 06:57:47,777 WARN L250 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_bc5f6a27-b758-4750-af0e-fed5978b3987/sv-benchmarks/c/eca-rers2012/Problem18_label06.c[2911,2924] [2024-11-09 06:57:48,697 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:57:48,707 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 06:57:48,731 WARN L250 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_bc5f6a27-b758-4750-af0e-fed5978b3987/sv-benchmarks/c/eca-rers2012/Problem18_label06.c[2911,2924] [2024-11-09 06:57:49,220 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:57:49,244 INFO L204 MainTranslator]: Completed translation [2024-11-09 06:57:49,244 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:57:49 WrapperNode [2024-11-09 06:57:49,244 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 06:57:49,245 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 06:57:49,246 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 06:57:49,246 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 06:57:49,253 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:57:49" (1/1) ... [2024-11-09 06:57:49,298 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:57:49" (1/1) ... [2024-11-09 06:57:49,598 INFO L138 Inliner]: procedures = 16, calls = 10, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 4134 [2024-11-09 06:57:49,599 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 06:57:49,603 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 06:57:49,603 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 06:57:49,604 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 06:57:49,613 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:57:49" (1/1) ... [2024-11-09 06:57:49,613 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:57:49" (1/1) ... [2024-11-09 06:57:49,651 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:57:49" (1/1) ... [2024-11-09 06:57:49,651 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:57:49" (1/1) ... [2024-11-09 06:57:49,742 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:57:49" (1/1) ... [2024-11-09 06:57:49,760 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:57:49" (1/1) ... [2024-11-09 06:57:49,790 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:57:49" (1/1) ... [2024-11-09 06:57:49,799 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:57:49" (1/1) ... [2024-11-09 06:57:49,846 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 06:57:49,847 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 06:57:49,847 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 06:57:49,848 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 06:57:49,849 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:57:49" (1/1) ... [2024-11-09 06:57:49,855 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:57:49,868 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc5f6a27-b758-4750-af0e-fed5978b3987/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:57:49,883 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc5f6a27-b758-4750-af0e-fed5978b3987/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 06:57:49,888 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc5f6a27-b758-4750-af0e-fed5978b3987/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 06:57:49,967 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 06:57:49,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 06:57:49,968 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 06:57:49,968 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 06:57:50,055 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 06:57:50,057 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 06:57:54,518 INFO L? ?]: Removed 639 outVars from TransFormulas that were not future-live. [2024-11-09 06:57:54,518 INFO L287 CfgBuilder]: Performing block encoding