./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-programs/Problem101_label06.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_e50f03c7-49b0-47e5-abce-9dabbf648e71/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e50f03c7-49b0-47e5-abce-9dabbf648e71/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e50f03c7-49b0-47e5-abce-9dabbf648e71/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e50f03c7-49b0-47e5-abce-9dabbf648e71/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-programs/Problem101_label06.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e50f03c7-49b0-47e5-abce-9dabbf648e71/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e50f03c7-49b0-47e5-abce-9dabbf648e71/bin/uautomizer-verify-4GaUIPS5ZU --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7788a6fb183145d8c399b3b8d43d3d4d8ad000e6a36d25b9f17996e1431c546e --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:18:05,455 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:18:05,553 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e50f03c7-49b0-47e5-abce-9dabbf648e71/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-31 22:18:05,562 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:18:05,562 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:18:05,601 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:18:05,602 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:18:05,602 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:18:05,605 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 22:18:05,606 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 22:18:05,606 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 22:18:05,607 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 22:18:05,607 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:18:05,608 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:18:05,608 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:18:05,609 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:18:05,612 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 22:18:05,612 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 22:18:05,612 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:18:05,613 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 22:18:05,613 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:18:05,613 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 22:18:05,614 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 22:18:05,614 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 22:18:05,615 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:18:05,615 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 22:18:05,615 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 22:18:05,616 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:18:05,616 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:18:05,617 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:18:05,617 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-31 22:18:05,617 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 22:18:05,618 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:18:05,618 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:18:05,619 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 22:18:05,619 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-31 22:18:05,619 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:18:05,620 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 22:18:05,620 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 22:18:05,620 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 22:18:05,621 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 22:18:05,621 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 22:18:05,622 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_e50f03c7-49b0-47e5-abce-9dabbf648e71/bin/uautomizer-verify-4GaUIPS5ZU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e50f03c7-49b0-47e5-abce-9dabbf648e71/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7788a6fb183145d8c399b3b8d43d3d4d8ad000e6a36d25b9f17996e1431c546e [2024-10-31 22:18:05,854 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:18:05,885 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:18:05,887 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:18:05,889 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:18:05,889 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:18:05,890 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e50f03c7-49b0-47e5-abce-9dabbf648e71/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/eca-programs/Problem101_label06.c Unable to find full path for "g++" [2024-10-31 22:18:07,991 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:18:10,221 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:18:10,223 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e50f03c7-49b0-47e5-abce-9dabbf648e71/sv-benchmarks/c/eca-programs/Problem101_label06.c [2024-10-31 22:18:10,365 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e50f03c7-49b0-47e5-abce-9dabbf648e71/bin/uautomizer-verify-4GaUIPS5ZU/data/fbed26721/7e08f8728a43498eb45d8f1adef31044/FLAGf54df6ff3 [2024-10-31 22:18:10,552 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e50f03c7-49b0-47e5-abce-9dabbf648e71/bin/uautomizer-verify-4GaUIPS5ZU/data/fbed26721/7e08f8728a43498eb45d8f1adef31044 [2024-10-31 22:18:10,555 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:18:10,557 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:18:10,558 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:18:10,558 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:18:10,564 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:18:10,565 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:18:10" (1/1) ... [2024-10-31 22:18:10,566 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37e98c79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:18:10, skipping insertion in model container [2024-10-31 22:18:10,567 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:18:10" (1/1) ... [2024-10-31 22:18:11,296 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:18:23,226 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_e50f03c7-49b0-47e5-abce-9dabbf648e71/sv-benchmarks/c/eca-programs/Problem101_label06.c[2770546,2770559] [2024-10-31 22:18:23,286 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:18:23,295 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:18:31,045 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_e50f03c7-49b0-47e5-abce-9dabbf648e71/sv-benchmarks/c/eca-programs/Problem101_label06.c[2770546,2770559] [2024-10-31 22:18:31,057 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:18:32,454 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:18:32,455 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:18:32 WrapperNode [2024-10-31 22:18:32,456 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:18:32,457 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:18:32,459 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:18:32,460 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:18:32,470 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:18:32" (1/1) ... [2024-10-31 22:18:33,247 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:18:32" (1/1) ... [2024-10-31 22:18:36,638 INFO L138 Inliner]: procedures = 59, calls = 53, calls flagged for inlining = 48, calls inlined = 48, statements flattened = 83826 [2024-10-31 22:18:36,638 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:18:36,639 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:18:36,639 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:18:36,639 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:18:36,648 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:18:32" (1/1) ... [2024-10-31 22:18:36,648 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:18:32" (1/1) ... [2024-10-31 22:18:37,068 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:18:32" (1/1) ... [2024-10-31 22:18:37,371 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-31 22:18:37,371 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:18:32" (1/1) ... [2024-10-31 22:18:37,371 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:18:32" (1/1) ... [2024-10-31 22:18:38,873 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:18:32" (1/1) ... [2024-10-31 22:18:39,084 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:18:32" (1/1) ... [2024-10-31 22:18:39,173 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:18:32" (1/1) ... [2024-10-31 22:18:39,262 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:18:32" (1/1) ... [2024-10-31 22:18:39,636 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:18:39,637 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:18:39,637 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:18:39,637 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:18:39,643 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:18:32" (1/1) ... [2024-10-31 22:18:39,649 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:18:39,663 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e50f03c7-49b0-47e5-abce-9dabbf648e71/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:18:39,686 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e50f03c7-49b0-47e5-abce-9dabbf648e71/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 22:18:39,697 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e50f03c7-49b0-47e5-abce-9dabbf648e71/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 22:18:39,724 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 22:18:39,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-31 22:18:39,725 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:18:39,725 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start