./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem08_label56.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_97235011-bcb1-4544-8560-d003d6179d29/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97235011-bcb1-4544-8560-d003d6179d29/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_97235011-bcb1-4544-8560-d003d6179d29/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97235011-bcb1-4544-8560-d003d6179d29/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem08_label56.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97235011-bcb1-4544-8560-d003d6179d29/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_97235011-bcb1-4544-8560-d003d6179d29/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 f94374cdf982c55cd2ef07cc4943674d0e4099ebab6e954311b9f3560c14fc97 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 02:42:04,155 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 02:42:04,265 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97235011-bcb1-4544-8560-d003d6179d29/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-14 02:42:04,274 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 02:42:04,275 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 02:42:04,307 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 02:42:04,309 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 02:42:04,309 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 02:42:04,310 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 02:42:04,310 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 02:42:04,310 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 02:42:04,311 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 02:42:04,311 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 02:42:04,311 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 02:42:04,311 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 02:42:04,313 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 02:42:04,313 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 02:42:04,313 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 02:42:04,313 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 02:42:04,313 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 02:42:04,313 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 02:42:04,314 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 02:42:04,314 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 02:42:04,314 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 02:42:04,314 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 02:42:04,314 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 02:42:04,314 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 02:42:04,314 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 02:42:04,314 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 02:42:04,315 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 02:42:04,315 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 02:42:04,315 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 02:42:04,315 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 02:42:04,315 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 02:42:04,315 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 02:42:04,315 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 02:42:04,315 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 02:42:04,315 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 02:42:04,315 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 02:42:04,315 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 02:42:04,315 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 02:42:04,316 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 02:42:04,316 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 02:42:04,316 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 02:42:04,316 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 02:42:04,316 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 02:42:04,316 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 02:42:04,316 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_97235011-bcb1-4544-8560-d003d6179d29/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 -> f94374cdf982c55cd2ef07cc4943674d0e4099ebab6e954311b9f3560c14fc97 [2024-11-14 02:42:04,710 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 02:42:04,722 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 02:42:04,727 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 02:42:04,728 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 02:42:04,730 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 02:42:04,731 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97235011-bcb1-4544-8560-d003d6179d29/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/eca-rers2012/Problem08_label56.c Unable to find full path for "g++" [2024-11-14 02:42:06,648 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 02:42:09,903 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 02:42:09,904 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97235011-bcb1-4544-8560-d003d6179d29/sv-benchmarks/c/eca-rers2012/Problem08_label56.c [2024-11-14 02:42:10,221 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97235011-bcb1-4544-8560-d003d6179d29/bin/utaipan-verify-sOmjnqqW8E/data/797b4780c/a5db8c75c18744888774ddc69f56bd63/FLAGa84e19472 [2024-11-14 02:42:10,239 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97235011-bcb1-4544-8560-d003d6179d29/bin/utaipan-verify-sOmjnqqW8E/data/797b4780c/a5db8c75c18744888774ddc69f56bd63 [2024-11-14 02:42:10,241 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 02:42:10,243 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 02:42:10,245 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 02:42:10,245 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 02:42:10,250 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 02:42:10,251 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 02:42:10" (1/1) ... [2024-11-14 02:42:10,253 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b2df0c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:42:10, skipping insertion in model container [2024-11-14 02:42:10,253 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 02:42:10" (1/1) ... [2024-11-14 02:42:11,577 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 02:42:38,353 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_97235011-bcb1-4544-8560-d003d6179d29/sv-benchmarks/c/eca-rers2012/Problem08_label56.c[5716079,5716092] [2024-11-14 02:42:38,476 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 02:42:38,488 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 02:42:52,213 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_97235011-bcb1-4544-8560-d003d6179d29/sv-benchmarks/c/eca-rers2012/Problem08_label56.c[5716079,5716092] [2024-11-14 02:42:52,217 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 02:42:57,392 INFO L204 MainTranslator]: Completed translation [2024-11-14 02:42:57,393 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:42:57 WrapperNode [2024-11-14 02:42:57,393 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 02:42:57,395 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 02:42:57,395 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 02:42:57,395 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 02:42:57,407 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:42:57" (1/1) ... [2024-11-14 02:42:58,303 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:42:57" (1/1) ... [2024-11-14 02:43:03,723 INFO L138 Inliner]: procedures = 95, calls = 89, calls flagged for inlining = 84, calls inlined = 84, statements flattened = 184369 [2024-11-14 02:43:03,725 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 02:43:03,726 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 02:43:03,727 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 02:43:03,727 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 02:43:03,734 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:42:57" (1/1) ... [2024-11-14 02:43:03,734 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:42:57" (1/1) ... [2024-11-14 02:43:04,409 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:42:57" (1/1) ... [2024-11-14 02:43:04,409 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:42:57" (1/1) ... [2024-11-14 02:43:07,192 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:42:57" (1/1) ... [2024-11-14 02:43:07,678 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:42:57" (1/1) ... [2024-11-14 02:43:08,006 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:42:57" (1/1) ... [2024-11-14 02:43:08,165 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:42:57" (1/1) ... [2024-11-14 02:43:08,895 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 02:43:08,896 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 02:43:08,896 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 02:43:08,896 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 02:43:08,897 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:42:57" (1/1) ... [2024-11-14 02:43:08,905 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 02:43:08,926 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97235011-bcb1-4544-8560-d003d6179d29/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 02:43:08,946 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97235011-bcb1-4544-8560-d003d6179d29/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 02:43:08,955 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97235011-bcb1-4544-8560-d003d6179d29/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 02:43:08,986 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 02:43:08,986 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 02:43:08,987 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 02:43:08,987 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 02:43:09,282 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 02:43:09,285 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 02:44:55,857 INFO L? ?]: Removed 18108 outVars from TransFormulas that were not future-live. [2024-11-14 02:44:55,857 INFO L287 CfgBuilder]: Performing block encoding