./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem18_label51.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf9d5f42-2115-410a-91d7-dee86e0aadd8/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf9d5f42-2115-410a-91d7-dee86e0aadd8/bin/utaipan-verify-sOmjnqqW8E/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf9d5f42-2115-410a-91d7-dee86e0aadd8/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf9d5f42-2115-410a-91d7-dee86e0aadd8/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem18_label51.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf9d5f42-2115-410a-91d7-dee86e0aadd8/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf9d5f42-2115-410a-91d7-dee86e0aadd8/bin/utaipan-verify-sOmjnqqW8E --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 b09204eec7fef585004b69b471b657e04a2a46cceef0cdf26e228e2dd271c194 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 23:37:41,852 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 23:37:41,926 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf9d5f42-2115-410a-91d7-dee86e0aadd8/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-13 23:37:41,933 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 23:37:41,934 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 23:37:41,969 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 23:37:41,970 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 23:37:41,970 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 23:37:41,971 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 23:37:41,971 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 23:37:41,971 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-13 23:37:41,971 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-13 23:37:41,972 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-13 23:37:41,972 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-13 23:37:41,972 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-13 23:37:41,972 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-13 23:37:41,972 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-13 23:37:41,973 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-13 23:37:41,973 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-13 23:37:41,976 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-13 23:37:41,977 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-13 23:37:41,977 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-13 23:37:41,978 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 23:37:41,979 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 23:37:41,979 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 23:37:41,980 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 23:37:41,980 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 23:37:41,980 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 23:37:41,980 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 23:37:41,980 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 23:37:41,980 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 23:37:41,981 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 23:37:41,981 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 23:37:41,981 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 23:37:41,981 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 23:37:41,981 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 23:37:41,981 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 23:37:41,982 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 23:37:41,982 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-13 23:37:41,982 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 23:37:41,983 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 23:37:41,983 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 23:37:41,983 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-13 23:37:41,984 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 23:37:41,984 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 23:37:41,984 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-13 23:37:41,984 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 23:37:41,984 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_bf9d5f42-2115-410a-91d7-dee86e0aadd8/bin/utaipan-verify-sOmjnqqW8E 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 -> b09204eec7fef585004b69b471b657e04a2a46cceef0cdf26e228e2dd271c194 [2024-11-13 23:37:42,337 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 23:37:42,347 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 23:37:42,351 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 23:37:42,354 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 23:37:42,354 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 23:37:42,357 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf9d5f42-2115-410a-91d7-dee86e0aadd8/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/eca-rers2012/Problem18_label51.c Unable to find full path for "g++" [2024-11-13 23:37:44,547 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 23:37:45,299 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 23:37:45,299 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf9d5f42-2115-410a-91d7-dee86e0aadd8/sv-benchmarks/c/eca-rers2012/Problem18_label51.c [2024-11-13 23:37:45,337 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf9d5f42-2115-410a-91d7-dee86e0aadd8/bin/utaipan-verify-sOmjnqqW8E/data/9516d372e/eb1f4cfafdff412ebb1a3c8dbeb750b8/FLAG8c6723b27 [2024-11-13 23:37:45,361 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf9d5f42-2115-410a-91d7-dee86e0aadd8/bin/utaipan-verify-sOmjnqqW8E/data/9516d372e/eb1f4cfafdff412ebb1a3c8dbeb750b8 [2024-11-13 23:37:45,363 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 23:37:45,365 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 23:37:45,366 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 23:37:45,367 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 23:37:45,373 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 23:37:45,374 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 11:37:45" (1/1) ... [2024-11-13 23:37:45,377 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38e74021 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:37:45, skipping insertion in model container [2024-11-13 23:37:45,377 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 11:37:45" (1/1) ... [2024-11-13 23:37:45,496 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 23:37:45,771 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_bf9d5f42-2115-410a-91d7-dee86e0aadd8/sv-benchmarks/c/eca-rers2012/Problem18_label51.c[6263,6276] [2024-11-13 23:37:46,434 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 23:37:46,446 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 23:37:46,481 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_bf9d5f42-2115-410a-91d7-dee86e0aadd8/sv-benchmarks/c/eca-rers2012/Problem18_label51.c[6263,6276] [2024-11-13 23:37:46,905 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 23:37:46,932 INFO L204 MainTranslator]: Completed translation [2024-11-13 23:37:46,933 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:37:46 WrapperNode [2024-11-13 23:37:46,934 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 23:37:46,935 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 23:37:46,936 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 23:37:46,936 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 23:37:46,945 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:37:46" (1/1) ... [2024-11-13 23:37:47,007 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:37:46" (1/1) ... [2024-11-13 23:37:47,297 INFO L138 Inliner]: procedures = 16, calls = 10, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 4134 [2024-11-13 23:37:47,298 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 23:37:47,299 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 23:37:47,299 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 23:37:47,300 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 23:37:47,308 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:37:46" (1/1) ... [2024-11-13 23:37:47,308 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:37:46" (1/1) ... [2024-11-13 23:37:47,336 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:37:46" (1/1) ... [2024-11-13 23:37:47,336 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:37:46" (1/1) ... [2024-11-13 23:37:47,460 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:37:46" (1/1) ... [2024-11-13 23:37:47,511 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:37:46" (1/1) ... [2024-11-13 23:37:47,526 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:37:46" (1/1) ... [2024-11-13 23:37:47,542 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:37:46" (1/1) ... [2024-11-13 23:37:47,575 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 23:37:47,576 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 23:37:47,578 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 23:37:47,578 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 23:37:47,579 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:37:46" (1/1) ... [2024-11-13 23:37:47,589 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-13 23:37:47,604 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf9d5f42-2115-410a-91d7-dee86e0aadd8/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:37:47,619 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf9d5f42-2115-410a-91d7-dee86e0aadd8/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-13 23:37:47,627 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf9d5f42-2115-410a-91d7-dee86e0aadd8/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-13 23:37:47,651 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 23:37:47,651 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-13 23:37:47,652 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 23:37:47,652 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 23:37:47,733 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 23:37:47,735 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 23:37:52,937 INFO L? ?]: Removed 639 outVars from TransFormulas that were not future-live. [2024-11-13 23:37:52,938 INFO L287 CfgBuilder]: Performing block encoding