./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem18_label17.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4fc63b2a 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_5db6e27f-4f98-4151-93b3-2762d660296e/bin/utaipan-verify-DbMuA5NWw2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5db6e27f-4f98-4151-93b3-2762d660296e/bin/utaipan-verify-DbMuA5NWw2/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5db6e27f-4f98-4151-93b3-2762d660296e/bin/utaipan-verify-DbMuA5NWw2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5db6e27f-4f98-4151-93b3-2762d660296e/bin/utaipan-verify-DbMuA5NWw2/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem18_label17.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5db6e27f-4f98-4151-93b3-2762d660296e/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5db6e27f-4f98-4151-93b3-2762d660296e/bin/utaipan-verify-DbMuA5NWw2 --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 926b7b9d6547e72bfa5d12c411fdf31134212d85b2e49cebf30ae587ba070010 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-11-02 12:40:22,371 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-02 12:40:22,472 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5db6e27f-4f98-4151-93b3-2762d660296e/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-02 12:40:22,479 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-02 12:40:22,480 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-02 12:40:22,506 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-02 12:40:22,507 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-02 12:40:22,508 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-02 12:40:22,509 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-02 12:40:22,511 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-02 12:40:22,511 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-02 12:40:22,511 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-02 12:40:22,512 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-02 12:40:22,514 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-02 12:40:22,515 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-02 12:40:22,515 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-02 12:40:22,515 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-02 12:40:22,516 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-02 12:40:22,516 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-02 12:40:22,516 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-02 12:40:22,517 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-02 12:40:22,521 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-02 12:40:22,522 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-02 12:40:22,522 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-02 12:40:22,523 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-02 12:40:22,523 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-02 12:40:22,523 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-02 12:40:22,524 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-02 12:40:22,524 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-02 12:40:22,524 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-02 12:40:22,524 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-02 12:40:22,525 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-02 12:40:22,526 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-02 12:40:22,527 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-02 12:40:22,528 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-02 12:40:22,528 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-02 12:40:22,528 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-02 12:40:22,529 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-02 12:40:22,529 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:40:22,529 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-02 12:40:22,529 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-02 12:40:22,530 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-02 12:40:22,531 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-02 12:40:22,531 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-02 12:40:22,531 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-02 12:40:22,532 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-02 12:40:22,532 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-02 12:40:22,532 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_5db6e27f-4f98-4151-93b3-2762d660296e/bin/utaipan-verify-DbMuA5NWw2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5db6e27f-4f98-4151-93b3-2762d660296e/bin/utaipan-verify-DbMuA5NWw2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 926b7b9d6547e72bfa5d12c411fdf31134212d85b2e49cebf30ae587ba070010 [2024-11-02 12:40:22,868 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-02 12:40:22,906 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-02 12:40:22,909 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-02 12:40:22,912 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-02 12:40:22,912 INFO L274 PluginConnector]: CDTParser initialized [2024-11-02 12:40:22,914 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5db6e27f-4f98-4151-93b3-2762d660296e/bin/utaipan-verify-DbMuA5NWw2/../../sv-benchmarks/c/eca-rers2012/Problem18_label17.c Unable to find full path for "g++" [2024-11-02 12:40:25,428 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-02 12:40:25,988 INFO L384 CDTParser]: Found 1 translation units. [2024-11-02 12:40:25,989 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5db6e27f-4f98-4151-93b3-2762d660296e/sv-benchmarks/c/eca-rers2012/Problem18_label17.c [2024-11-02 12:40:26,032 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5db6e27f-4f98-4151-93b3-2762d660296e/bin/utaipan-verify-DbMuA5NWw2/data/3726cf074/0922d79fde6248449a2b6895fca55b8a/FLAG78a8d4a65 [2024-11-02 12:40:26,535 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5db6e27f-4f98-4151-93b3-2762d660296e/bin/utaipan-verify-DbMuA5NWw2/data/3726cf074/0922d79fde6248449a2b6895fca55b8a [2024-11-02 12:40:26,538 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-02 12:40:26,540 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-02 12:40:26,542 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-02 12:40:26,544 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-02 12:40:26,551 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-02 12:40:26,552 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:40:26" (1/1) ... [2024-11-02 12:40:26,554 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a6d5fea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:40:26, skipping insertion in model container [2024-11-02 12:40:26,554 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:40:26" (1/1) ... [2024-11-02 12:40:26,702 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-02 12:40:27,101 WARN L251 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_5db6e27f-4f98-4151-93b3-2762d660296e/sv-benchmarks/c/eca-rers2012/Problem18_label17.c[3487,3500] [2024-11-02 12:40:28,304 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:40:28,319 INFO L200 MainTranslator]: Completed pre-run [2024-11-02 12:40:28,347 WARN L251 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_5db6e27f-4f98-4151-93b3-2762d660296e/sv-benchmarks/c/eca-rers2012/Problem18_label17.c[3487,3500] [2024-11-02 12:40:28,888 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:40:28,918 INFO L204 MainTranslator]: Completed translation [2024-11-02 12:40:28,919 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:40:28 WrapperNode [2024-11-02 12:40:28,919 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-02 12:40:28,920 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-02 12:40:28,920 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-02 12:40:28,920 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-02 12:40:28,929 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:40:28" (1/1) ... [2024-11-02 12:40:28,990 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:40:28" (1/1) ... [2024-11-02 12:40:29,265 INFO L138 Inliner]: procedures = 16, calls = 10, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 4135 [2024-11-02 12:40:29,266 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-02 12:40:29,268 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-02 12:40:29,268 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-02 12:40:29,268 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-02 12:40:29,280 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:40:28" (1/1) ... [2024-11-02 12:40:29,280 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:40:28" (1/1) ... [2024-11-02 12:40:29,303 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:40:28" (1/1) ... [2024-11-02 12:40:29,303 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:40:28" (1/1) ... [2024-11-02 12:40:29,481 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:40:28" (1/1) ... [2024-11-02 12:40:29,522 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:40:28" (1/1) ... [2024-11-02 12:40:29,541 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:40:28" (1/1) ... [2024-11-02 12:40:29,556 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:40:28" (1/1) ... [2024-11-02 12:40:29,594 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-02 12:40:29,595 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-02 12:40:29,597 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-02 12:40:29,597 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-02 12:40:29,598 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:40:28" (1/1) ... [2024-11-02 12:40:29,605 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:40:29,619 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5db6e27f-4f98-4151-93b3-2762d660296e/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:40:29,637 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5db6e27f-4f98-4151-93b3-2762d660296e/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-02 12:40:29,645 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5db6e27f-4f98-4151-93b3-2762d660296e/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-02 12:40:29,677 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-02 12:40:29,677 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-02 12:40:29,677 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-02 12:40:29,679 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-02 12:40:29,775 INFO L238 CfgBuilder]: Building ICFG [2024-11-02 12:40:29,778 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-02 12:40:35,034 INFO L? ?]: Removed 639 outVars from TransFormulas that were not future-live. [2024-11-02 12:40:35,035 INFO L287 CfgBuilder]: Performing block encoding