./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem19_label51.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 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_db506f30-aad7-45fa-a8e3-e6c861ce5692/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db506f30-aad7-45fa-a8e3-e6c861ce5692/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_db506f30-aad7-45fa-a8e3-e6c861ce5692/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db506f30-aad7-45fa-a8e3-e6c861ce5692/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem19_label51.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db506f30-aad7-45fa-a8e3-e6c861ce5692/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_db506f30-aad7-45fa-a8e3-e6c861ce5692/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 31805de0830de2b1932982a70f950995cd5cf878b2a5369c2a4d1555e822907c --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 04:29:46,474 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 04:29:46,555 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db506f30-aad7-45fa-a8e3-e6c861ce5692/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-09 04:29:46,562 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 04:29:46,563 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 04:29:46,598 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 04:29:46,598 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 04:29:46,599 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 04:29:46,600 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 04:29:46,601 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 04:29:46,602 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 04:29:46,603 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 04:29:46,603 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 04:29:46,603 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 04:29:46,604 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 04:29:46,604 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 04:29:46,604 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 04:29:46,605 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 04:29:46,605 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 04:29:46,605 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 04:29:46,606 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 04:29:46,611 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 04:29:46,612 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 04:29:46,612 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 04:29:46,612 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 04:29:46,613 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 04:29:46,613 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 04:29:46,613 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 04:29:46,613 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 04:29:46,614 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 04:29:46,614 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 04:29:46,614 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 04:29:46,614 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 04:29:46,614 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 04:29:46,615 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 04:29:46,617 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 04:29:46,618 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 04:29:46,618 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 04:29:46,618 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 04:29:46,619 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 04:29:46,619 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 04:29:46,619 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 04:29:46,619 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 04:29:46,620 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 04:29:46,620 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 04:29:46,620 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 04:29:46,620 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 04:29:46,621 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_db506f30-aad7-45fa-a8e3-e6c861ce5692/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db506f30-aad7-45fa-a8e3-e6c861ce5692/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 31805de0830de2b1932982a70f950995cd5cf878b2a5369c2a4d1555e822907c [2024-11-09 04:29:46,890 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 04:29:46,927 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 04:29:46,930 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 04:29:46,931 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 04:29:46,933 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 04:29:46,934 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db506f30-aad7-45fa-a8e3-e6c861ce5692/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/eca-rers2012/Problem19_label51.c Unable to find full path for "g++" [2024-11-09 04:29:48,947 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 04:29:49,620 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 04:29:49,621 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db506f30-aad7-45fa-a8e3-e6c861ce5692/sv-benchmarks/c/eca-rers2012/Problem19_label51.c [2024-11-09 04:29:49,665 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db506f30-aad7-45fa-a8e3-e6c861ce5692/bin/utaipan-verify-YMUCfTKeje/data/a3afa4529/3a83891478b245e6a52207700ebf79a5/FLAG28a7486e3 [2024-11-09 04:29:50,019 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db506f30-aad7-45fa-a8e3-e6c861ce5692/bin/utaipan-verify-YMUCfTKeje/data/a3afa4529/3a83891478b245e6a52207700ebf79a5 [2024-11-09 04:29:50,022 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 04:29:50,024 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 04:29:50,025 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 04:29:50,025 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 04:29:50,032 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 04:29:50,033 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 04:29:50" (1/1) ... [2024-11-09 04:29:50,034 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@470f0ef8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:29:50, skipping insertion in model container [2024-11-09 04:29:50,035 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 04:29:50" (1/1) ... [2024-11-09 04:29:50,232 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 04:29:50,549 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_db506f30-aad7-45fa-a8e3-e6c861ce5692/sv-benchmarks/c/eca-rers2012/Problem19_label51.c[2619,2632] [2024-11-09 04:29:52,321 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 04:29:52,334 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 04:29:52,356 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_db506f30-aad7-45fa-a8e3-e6c861ce5692/sv-benchmarks/c/eca-rers2012/Problem19_label51.c[2619,2632] [2024-11-09 04:29:53,476 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 04:29:53,519 INFO L204 MainTranslator]: Completed translation [2024-11-09 04:29:53,520 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:29:53 WrapperNode [2024-11-09 04:29:53,520 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 04:29:53,521 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 04:29:53,522 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 04:29:53,522 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 04:29:53,529 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:29:53" (1/1) ... [2024-11-09 04:29:53,632 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:29:53" (1/1) ... [2024-11-09 04:29:54,918 INFO L138 Inliner]: procedures = 19, calls = 13, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 9430 [2024-11-09 04:29:54,918 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 04:29:54,919 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 04:29:54,919 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 04:29:54,919 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 04:29:54,943 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:29:53" (1/1) ... [2024-11-09 04:29:54,944 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:29:53" (1/1) ... [2024-11-09 04:29:55,206 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:29:53" (1/1) ... [2024-11-09 04:29:55,206 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:29:53" (1/1) ... [2024-11-09 04:29:55,767 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:29:53" (1/1) ... [2024-11-09 04:29:55,815 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:29:53" (1/1) ... [2024-11-09 04:29:55,856 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:29:53" (1/1) ... [2024-11-09 04:29:55,878 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:29:53" (1/1) ... [2024-11-09 04:29:56,200 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 04:29:56,205 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 04:29:56,206 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 04:29:56,206 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 04:29:56,207 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:29:53" (1/1) ... [2024-11-09 04:29:56,213 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 04:29:56,235 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db506f30-aad7-45fa-a8e3-e6c861ce5692/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:29:56,259 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db506f30-aad7-45fa-a8e3-e6c861ce5692/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 04:29:56,272 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db506f30-aad7-45fa-a8e3-e6c861ce5692/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 04:29:56,327 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 04:29:56,328 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 04:29:56,328 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 04:29:56,334 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 04:29:56,509 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 04:29:56,512 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 04:30:08,153 INFO L? ?]: Removed 1320 outVars from TransFormulas that were not future-live. [2024-11-09 04:30:08,154 INFO L287 CfgBuilder]: Performing block encoding