./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-programs/Problem101_label21.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11d5e6dd-ed42-4e44-a0ba-f22e3e236419/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11d5e6dd-ed42-4e44-a0ba-f22e3e236419/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11d5e6dd-ed42-4e44-a0ba-f22e3e236419/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11d5e6dd-ed42-4e44-a0ba-f22e3e236419/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-programs/Problem101_label21.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11d5e6dd-ed42-4e44-a0ba-f22e3e236419/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11d5e6dd-ed42-4e44-a0ba-f22e3e236419/bin/uautomizer-verify-VRDe98Ueme --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 5fa351a972cf64749c29bcaf63ee12c8e6a461f99ab329b8a720e8c423b4af17 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 11:45:40,660 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 11:45:40,779 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11d5e6dd-ed42-4e44-a0ba-f22e3e236419/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-26 11:45:40,787 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 11:45:40,788 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 11:45:40,819 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 11:45:40,820 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 11:45:40,821 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 11:45:40,822 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 11:45:40,823 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 11:45:40,823 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 11:45:40,824 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 11:45:40,825 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 11:45:40,826 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 11:45:40,827 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 11:45:40,827 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 11:45:40,828 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 11:45:40,829 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 11:45:40,830 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 11:45:40,830 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 11:45:40,831 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 11:45:40,832 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 11:45:40,832 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 11:45:40,833 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 11:45:40,834 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 11:45:40,834 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 11:45:40,835 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 11:45:40,836 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 11:45:40,836 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 11:45:40,837 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 11:45:40,837 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 11:45:40,838 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:45:40,838 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 11:45:40,839 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 11:45:40,839 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 11:45:40,840 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 11:45:40,840 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 11:45:40,840 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 11:45:40,841 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 11:45:40,841 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 11:45:40,842 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 11:45:40,842 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 11:45:40,842 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_11d5e6dd-ed42-4e44-a0ba-f22e3e236419/bin/uautomizer-verify-VRDe98Ueme/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11d5e6dd-ed42-4e44-a0ba-f22e3e236419/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5fa351a972cf64749c29bcaf63ee12c8e6a461f99ab329b8a720e8c423b4af17 [2023-11-26 11:45:41,173 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 11:45:41,198 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 11:45:41,201 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 11:45:41,203 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 11:45:41,204 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 11:45:41,206 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11d5e6dd-ed42-4e44-a0ba-f22e3e236419/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/eca-programs/Problem101_label21.c [2023-11-26 11:45:44,781 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 11:45:47,277 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 11:45:47,277 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11d5e6dd-ed42-4e44-a0ba-f22e3e236419/sv-benchmarks/c/eca-programs/Problem101_label21.c [2023-11-26 11:45:47,538 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11d5e6dd-ed42-4e44-a0ba-f22e3e236419/bin/uautomizer-verify-VRDe98Ueme/data/9bf0639bf/3dbaf23f654a4172a95ccc7f5286b2e2/FLAGf58bc96ff [2023-11-26 11:45:47,557 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11d5e6dd-ed42-4e44-a0ba-f22e3e236419/bin/uautomizer-verify-VRDe98Ueme/data/9bf0639bf/3dbaf23f654a4172a95ccc7f5286b2e2 [2023-11-26 11:45:47,563 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 11:45:47,566 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 11:45:47,568 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 11:45:47,569 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 11:45:47,574 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 11:45:47,575 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:45:47" (1/1) ... [2023-11-26 11:45:47,576 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5735ae95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:45:47, skipping insertion in model container [2023-11-26 11:45:47,577 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:45:47" (1/1) ... [2023-11-26 11:45:48,588 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 11:46:02,302 WARN L240 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_11d5e6dd-ed42-4e44-a0ba-f22e3e236419/sv-benchmarks/c/eca-programs/Problem101_label21.c[2766627,2766640] [2023-11-26 11:46:02,392 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:46:02,406 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 11:46:10,535 WARN L240 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_11d5e6dd-ed42-4e44-a0ba-f22e3e236419/sv-benchmarks/c/eca-programs/Problem101_label21.c[2766627,2766640] [2023-11-26 11:46:10,554 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:46:11,830 INFO L206 MainTranslator]: Completed translation [2023-11-26 11:46:11,830 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:46:11 WrapperNode [2023-11-26 11:46:11,830 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 11:46:11,832 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 11:46:11,832 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 11:46:11,833 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 11:46:11,840 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:46:11" (1/1) ... [2023-11-26 11:46:12,675 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:46:11" (1/1) ... [2023-11-26 11:46:16,342 INFO L138 Inliner]: procedures = 59, calls = 53, calls flagged for inlining = 48, calls inlined = 48, statements flattened = 83781 [2023-11-26 11:46:16,343 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 11:46:16,344 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 11:46:16,344 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 11:46:16,344 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 11:46:16,369 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:46:11" (1/1) ... [2023-11-26 11:46:16,370 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:46:11" (1/1) ... [2023-11-26 11:46:16,816 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:46:11" (1/1) ... [2023-11-26 11:46:17,212 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]. [2023-11-26 11:46:17,213 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:46:11" (1/1) ... [2023-11-26 11:46:17,213 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:46:11" (1/1) ... [2023-11-26 11:46:18,917 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:46:11" (1/1) ... [2023-11-26 11:46:19,156 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:46:11" (1/1) ... [2023-11-26 11:46:19,297 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:46:11" (1/1) ... [2023-11-26 11:46:19,421 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:46:11" (1/1) ... [2023-11-26 11:46:19,912 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 11:46:19,914 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 11:46:19,915 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 11:46:19,916 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 11:46:19,917 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:46:11" (1/1) ... [2023-11-26 11:46:19,925 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:46:19,941 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11d5e6dd-ed42-4e44-a0ba-f22e3e236419/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:46:19,960 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11d5e6dd-ed42-4e44-a0ba-f22e3e236419/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 11:46:20,003 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11d5e6dd-ed42-4e44-a0ba-f22e3e236419/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 11:46:20,020 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 11:46:20,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-26 11:46:20,020 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 11:46:20,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 11:46:20,225 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 11:46:20,228 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation