./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-programs/Problem103_label43.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_67173f5a-d63f-4337-a599-fbc06dc2c48b/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67173f5a-d63f-4337-a599-fbc06dc2c48b/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_67173f5a-d63f-4337-a599-fbc06dc2c48b/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67173f5a-d63f-4337-a599-fbc06dc2c48b/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-programs/Problem103_label43.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67173f5a-d63f-4337-a599-fbc06dc2c48b/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_67173f5a-d63f-4337-a599-fbc06dc2c48b/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 f8d567014a20ba0ea103a90c8acbd6d27f0b768bf6502c240b72f3b3ce325851 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 03:01:54,928 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 03:01:55,004 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67173f5a-d63f-4337-a599-fbc06dc2c48b/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-14 03:01:55,013 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 03:01:55,013 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 03:01:55,041 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 03:01:55,041 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 03:01:55,041 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 03:01:55,042 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 03:01:55,042 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 03:01:55,042 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 03:01:55,042 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 03:01:55,042 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 03:01:55,042 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 03:01:55,042 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 03:01:55,042 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 03:01:55,042 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 03:01:55,042 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 03:01:55,043 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 03:01:55,043 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 03:01:55,043 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 03:01:55,043 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 03:01:55,043 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 03:01:55,043 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 03:01:55,044 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 03:01:55,044 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 03:01:55,044 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 03:01:55,044 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 03:01:55,044 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 03:01:55,044 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 03:01:55,044 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 03:01:55,044 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 03:01:55,044 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 03:01:55,044 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 03:01:55,045 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 03:01:55,045 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 03:01:55,045 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 03:01:55,045 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 03:01:55,045 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:01:55,045 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 03:01:55,045 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 03:01:55,045 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 03:01:55,045 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 03:01:55,046 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 03:01:55,046 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 03:01:55,046 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 03:01:55,046 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 03:01:55,046 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_67173f5a-d63f-4337-a599-fbc06dc2c48b/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 -> f8d567014a20ba0ea103a90c8acbd6d27f0b768bf6502c240b72f3b3ce325851 [2024-11-14 03:01:55,311 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 03:01:55,319 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 03:01:55,321 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 03:01:55,322 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 03:01:55,323 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 03:01:55,324 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67173f5a-d63f-4337-a599-fbc06dc2c48b/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/eca-programs/Problem103_label43.c Unable to find full path for "g++" [2024-11-14 03:01:57,236 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 03:02:00,261 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 03:02:00,262 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67173f5a-d63f-4337-a599-fbc06dc2c48b/sv-benchmarks/c/eca-programs/Problem103_label43.c [2024-11-14 03:02:00,651 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67173f5a-d63f-4337-a599-fbc06dc2c48b/bin/utaipan-verify-sOmjnqqW8E/data/8708bc6db/a73ae2f0ea4c4b3ea3d3ea532489f4c6/FLAGaafdd229e [2024-11-14 03:02:00,672 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67173f5a-d63f-4337-a599-fbc06dc2c48b/bin/utaipan-verify-sOmjnqqW8E/data/8708bc6db/a73ae2f0ea4c4b3ea3d3ea532489f4c6 [2024-11-14 03:02:00,675 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 03:02:00,678 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 03:02:00,680 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 03:02:00,680 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 03:02:00,686 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 03:02:00,687 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:02:00" (1/1) ... [2024-11-14 03:02:00,688 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@424400db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:02:00, skipping insertion in model container [2024-11-14 03:02:00,690 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:02:00" (1/1) ... [2024-11-14 03:02:01,983 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 03:02:27,464 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_67173f5a-d63f-4337-a599-fbc06dc2c48b/sv-benchmarks/c/eca-programs/Problem103_label43.c[6306854,6306867] [2024-11-14 03:02:27,579 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:02:27,589 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 03:02:42,058 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_67173f5a-d63f-4337-a599-fbc06dc2c48b/sv-benchmarks/c/eca-programs/Problem103_label43.c[6306854,6306867] [2024-11-14 03:02:42,065 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:02:45,964 INFO L204 MainTranslator]: Completed translation [2024-11-14 03:02:45,965 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:02:45 WrapperNode [2024-11-14 03:02:45,965 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 03:02:45,966 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 03:02:45,966 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 03:02:45,966 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 03:02:45,972 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:02:45" (1/1) ... [2024-11-14 03:02:47,166 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:02:45" (1/1) ... [2024-11-14 03:02:51,919 INFO L138 Inliner]: procedures = 88, calls = 82, calls flagged for inlining = 77, calls inlined = 77, statements flattened = 197898 [2024-11-14 03:02:51,919 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 03:02:51,920 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 03:02:51,920 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 03:02:51,920 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 03:02:51,927 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:02:45" (1/1) ... [2024-11-14 03:02:51,927 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:02:45" (1/1) ... [2024-11-14 03:02:52,456 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:02:45" (1/1) ... [2024-11-14 03:02:52,457 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:02:45" (1/1) ... [2024-11-14 03:02:54,542 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:02:45" (1/1) ... [2024-11-14 03:02:54,918 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:02:45" (1/1) ... [2024-11-14 03:02:55,161 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:02:45" (1/1) ... [2024-11-14 03:02:55,326 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:02:45" (1/1) ... [2024-11-14 03:02:55,918 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 03:02:55,919 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 03:02:55,919 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 03:02:55,919 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 03:02:55,920 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:02:45" (1/1) ... [2024-11-14 03:02:55,925 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:02:55,936 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67173f5a-d63f-4337-a599-fbc06dc2c48b/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:02:55,950 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67173f5a-d63f-4337-a599-fbc06dc2c48b/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 03:02:55,956 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67173f5a-d63f-4337-a599-fbc06dc2c48b/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 03:02:55,976 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 03:02:55,976 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 03:02:55,976 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 03:02:55,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 03:02:56,191 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 03:02:56,193 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 03:04:34,494 INFO L? ?]: Removed 16411 outVars from TransFormulas that were not future-live. [2024-11-14 03:04:34,494 INFO L287 CfgBuilder]: Performing block encoding