./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_93-evilcollapse_racefree.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 527bcce2 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_450d2060-a193-4ccb-9797-2c0596d720a1/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_450d2060-a193-4ccb-9797-2c0596d720a1/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_450d2060-a193-4ccb-9797-2c0596d720a1/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_450d2060-a193-4ccb-9797-2c0596d720a1/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_93-evilcollapse_racefree.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_450d2060-a193-4ccb-9797-2c0596d720a1/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_450d2060-a193-4ccb-9797-2c0596d720a1/bin/uautomizer-verify-bycVGegfSx --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash dad265ed8a17f32bb0a174302dfe188f9a15f60b81cc9c28a67851ab05270da2 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:13:24,311 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:13:24,435 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_450d2060-a193-4ccb-9797-2c0596d720a1/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-21 22:13:24,450 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:13:24,451 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:13:24,501 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:13:24,503 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:13:24,503 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:13:24,505 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-21 22:13:24,511 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-21 22:13:24,512 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 22:13:24,514 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 22:13:24,515 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:13:24,517 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:13:24,518 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:13:24,518 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:13:24,519 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 22:13:24,519 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 22:13:24,520 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 22:13:24,521 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 22:13:24,521 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:13:24,522 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 22:13:24,523 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 22:13:24,523 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 22:13:24,524 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-21 22:13:24,525 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 22:13:24,525 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 22:13:24,526 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 22:13:24,526 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:13:24,528 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:13:24,529 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:13:24,530 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 22:13:24,530 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 22:13:24,531 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:13:24,531 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:13:24,531 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 22:13:24,532 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 22:13:24,532 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 22:13:24,532 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 22:13:24,533 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 22:13:24,533 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 22:13:24,533 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 22:13:24,534 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 22:13:24,534 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 22:13:24,535 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_450d2060-a193-4ccb-9797-2c0596d720a1/bin/uautomizer-verify-bycVGegfSx/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_450d2060-a193-4ccb-9797-2c0596d720a1/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dad265ed8a17f32bb0a174302dfe188f9a15f60b81cc9c28a67851ab05270da2 [2023-11-21 22:13:24,949 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:13:25,001 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:13:25,004 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:13:25,005 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:13:25,006 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:13:25,007 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_450d2060-a193-4ccb-9797-2c0596d720a1/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/goblint-regression/28-race_reach_93-evilcollapse_racefree.i [2023-11-21 22:13:28,357 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:13:28,718 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:13:28,719 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_450d2060-a193-4ccb-9797-2c0596d720a1/sv-benchmarks/c/goblint-regression/28-race_reach_93-evilcollapse_racefree.i [2023-11-21 22:13:28,746 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_450d2060-a193-4ccb-9797-2c0596d720a1/bin/uautomizer-verify-bycVGegfSx/data/3f0d9b05e/b6ca27769b9e42cb9fd23115cbae0bd3/FLAG5899d4930 [2023-11-21 22:13:28,765 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_450d2060-a193-4ccb-9797-2c0596d720a1/bin/uautomizer-verify-bycVGegfSx/data/3f0d9b05e/b6ca27769b9e42cb9fd23115cbae0bd3 [2023-11-21 22:13:28,771 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:13:28,773 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:13:28,778 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:13:28,778 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:13:28,784 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:13:28,787 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:13:28" (1/1) ... [2023-11-21 22:13:28,788 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54e1ee39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:13:28, skipping insertion in model container [2023-11-21 22:13:28,789 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:13:28" (1/1) ... [2023-11-21 22:13:28,870 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:13:29,474 WARN L1590 CHandler]: Possible shadowing of function new [2023-11-21 22:13:29,475 WARN L1590 CHandler]: Possible shadowing of function new [2023-11-21 22:13:29,477 WARN L1590 CHandler]: Possible shadowing of function new [2023-11-21 22:13:29,483 WARN L1590 CHandler]: Possible shadowing of function new [2023-11-21 22:13:29,537 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:13:29,588 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 22:13:29,674 WARN L1590 CHandler]: Possible shadowing of function new [2023-11-21 22:13:29,675 WARN L1590 CHandler]: Possible shadowing of function new [2023-11-21 22:13:29,675 WARN L1590 CHandler]: Possible shadowing of function new [2023-11-21 22:13:29,676 WARN L1590 CHandler]: Possible shadowing of function new [2023-11-21 22:13:29,696 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:13:29,788 INFO L206 MainTranslator]: Completed translation [2023-11-21 22:13:29,788 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:13:29 WrapperNode [2023-11-21 22:13:29,788 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:13:29,790 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 22:13:29,790 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 22:13:29,791 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 22:13:29,800 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:13:29" (1/1) ... [2023-11-21 22:13:29,847 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:13:29" (1/1) ... [2023-11-21 22:13:29,893 INFO L138 Inliner]: procedures = 280, calls = 56, calls flagged for inlining = 13, calls inlined = 13, statements flattened = 262 [2023-11-21 22:13:29,894 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 22:13:29,894 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 22:13:29,895 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 22:13:29,895 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 22:13:29,908 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:13:29" (1/1) ... [2023-11-21 22:13:29,909 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:13:29" (1/1) ... [2023-11-21 22:13:29,916 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:13:29" (1/1) ... [2023-11-21 22:13:29,939 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.boogie.preprocessor has thrown an exception: java.lang.ArrayIndexOutOfBoundsException: Index 0 out of bounds for length 0 at de.uni_freiburg.informatik.ultimate.boogie.preprocessor.memoryslicer.AliasAnalysis.processJoinStatement(AliasAnalysis.java:175) at de.uni_freiburg.informatik.ultimate.boogie.preprocessor.memoryslicer.AliasAnalysis.processStatementList(AliasAnalysis.java:161) at de.uni_freiburg.informatik.ultimate.boogie.preprocessor.memoryslicer.AliasAnalysis.processStatementList(AliasAnalysis.java:157) at de.uni_freiburg.informatik.ultimate.boogie.preprocessor.memoryslicer.AliasAnalysis.processBody(AliasAnalysis.java:128) at de.uni_freiburg.informatik.ultimate.boogie.preprocessor.memoryslicer.AliasAnalysis.aliasAnalysis(AliasAnalysis.java:117) at de.uni_freiburg.informatik.ultimate.boogie.preprocessor.memoryslicer.HeapSplitter.tryToSliceMemory(HeapSplitter.java:116) at de.uni_freiburg.informatik.ultimate.boogie.preprocessor.memoryslicer.HeapSplitter.process(HeapSplitter.java:102) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.DFSTreeWalker.runObserver(DFSTreeWalker.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.runObserver(BaseWalker.java:93) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.run(BaseWalker.java:86) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:166) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:155) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2023-11-21 22:13:29,945 INFO L158 Benchmark]: Toolchain (without parser) took 1170.47ms. Allocated memory is still 148.9MB. Free memory was 103.1MB in the beginning and 66.2MB in the end (delta: 36.9MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2023-11-21 22:13:29,946 INFO L158 Benchmark]: CDTParser took 1.51ms. Allocated memory is still 148.9MB. Free memory is still 123.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 22:13:29,954 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1011.10ms. Allocated memory is still 148.9MB. Free memory was 103.1MB in the beginning and 71.2MB in the end (delta: 31.9MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2023-11-21 22:13:29,959 INFO L158 Benchmark]: Boogie Procedure Inliner took 103.71ms. Allocated memory is still 148.9MB. Free memory was 71.2MB in the beginning and 67.9MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 22:13:29,960 INFO L158 Benchmark]: Boogie Preprocessor took 48.36ms. Allocated memory is still 148.9MB. Free memory was 67.9MB in the beginning and 66.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 22:13:29,963 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.51ms. Allocated memory is still 148.9MB. Free memory is still 123.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1011.10ms. Allocated memory is still 148.9MB. Free memory was 103.1MB in the beginning and 71.2MB in the end (delta: 31.9MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 103.71ms. Allocated memory is still 148.9MB. Free memory was 71.2MB in the beginning and 67.9MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 48.36ms. Allocated memory is still 148.9MB. Free memory was 67.9MB in the beginning and 66.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - ExceptionOrErrorResult: ArrayIndexOutOfBoundsException: Index 0 out of bounds for length 0 de.uni_freiburg.informatik.ultimate.boogie.preprocessor: ArrayIndexOutOfBoundsException: Index 0 out of bounds for length 0: de.uni_freiburg.informatik.ultimate.boogie.preprocessor.memoryslicer.AliasAnalysis.processJoinStatement(AliasAnalysis.java:175) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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_450d2060-a193-4ccb-9797-2c0596d720a1/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_450d2060-a193-4ccb-9797-2c0596d720a1/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_450d2060-a193-4ccb-9797-2c0596d720a1/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_450d2060-a193-4ccb-9797-2c0596d720a1/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_93-evilcollapse_racefree.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_450d2060-a193-4ccb-9797-2c0596d720a1/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Overflow-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_450d2060-a193-4ccb-9797-2c0596d720a1/bin/uautomizer-verify-bycVGegfSx --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash dad265ed8a17f32bb0a174302dfe188f9a15f60b81cc9c28a67851ab05270da2 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:13:32,963 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:13:33,104 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_450d2060-a193-4ccb-9797-2c0596d720a1/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Overflow-32bit-Automizer_Bitvector.epf [2023-11-21 22:13:33,114 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:13:33,115 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:13:33,168 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:13:33,169 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:13:33,169 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:13:33,171 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-21 22:13:33,176 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-21 22:13:33,177 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 22:13:33,178 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 22:13:33,179 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:13:33,185 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:13:33,185 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:13:33,187 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:13:33,187 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 22:13:33,188 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 22:13:33,188 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 22:13:33,190 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:13:33,190 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 22:13:33,191 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 22:13:33,192 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 22:13:33,192 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-21 22:13:33,193 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-21 22:13:33,193 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-21 22:13:33,194 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-21 22:13:33,194 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 22:13:33,195 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 22:13:33,195 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 22:13:33,196 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:13:33,196 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:13:33,197 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:13:33,197 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 22:13:33,198 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 22:13:33,198 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:13:33,198 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:13:33,199 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 22:13:33,199 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 22:13:33,199 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-21 22:13:33,200 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-21 22:13:33,200 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 22:13:33,201 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 22:13:33,201 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 22:13:33,201 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 22:13:33,201 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 22:13:33,202 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-21 22:13:33,202 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_450d2060-a193-4ccb-9797-2c0596d720a1/bin/uautomizer-verify-bycVGegfSx/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_450d2060-a193-4ccb-9797-2c0596d720a1/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dad265ed8a17f32bb0a174302dfe188f9a15f60b81cc9c28a67851ab05270da2 [2023-11-21 22:13:33,652 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:13:33,690 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:13:33,693 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:13:33,696 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:13:33,697 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:13:33,699 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_450d2060-a193-4ccb-9797-2c0596d720a1/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/goblint-regression/28-race_reach_93-evilcollapse_racefree.i [2023-11-21 22:13:37,080 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:13:37,517 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:13:37,518 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_450d2060-a193-4ccb-9797-2c0596d720a1/sv-benchmarks/c/goblint-regression/28-race_reach_93-evilcollapse_racefree.i [2023-11-21 22:13:37,543 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_450d2060-a193-4ccb-9797-2c0596d720a1/bin/uautomizer-verify-bycVGegfSx/data/d6ba03fc5/f42700bf79ce4ec3a466b43db15ec225/FLAG7c68c206e [2023-11-21 22:13:37,563 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_450d2060-a193-4ccb-9797-2c0596d720a1/bin/uautomizer-verify-bycVGegfSx/data/d6ba03fc5/f42700bf79ce4ec3a466b43db15ec225 [2023-11-21 22:13:37,568 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:13:37,570 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:13:37,573 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:13:37,574 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:13:37,595 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:13:37,596 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:13:37" (1/1) ... [2023-11-21 22:13:37,597 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2bfcdef9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:13:37, skipping insertion in model container [2023-11-21 22:13:37,597 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:13:37" (1/1) ... [2023-11-21 22:13:37,665 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:13:38,387 WARN L1590 CHandler]: Possible shadowing of function new [2023-11-21 22:13:38,388 WARN L1590 CHandler]: Possible shadowing of function new [2023-11-21 22:13:38,388 WARN L1590 CHandler]: Possible shadowing of function new [2023-11-21 22:13:38,389 WARN L1590 CHandler]: Possible shadowing of function new [2023-11-21 22:13:38,437 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:13:38,485 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-21 22:13:38,519 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:13:38,555 WARN L1590 CHandler]: Possible shadowing of function new [2023-11-21 22:13:38,555 WARN L1590 CHandler]: Possible shadowing of function new [2023-11-21 22:13:38,556 WARN L1590 CHandler]: Possible shadowing of function new [2023-11-21 22:13:38,561 WARN L1590 CHandler]: Possible shadowing of function new [2023-11-21 22:13:38,580 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:13:38,606 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 22:13:38,675 WARN L1590 CHandler]: Possible shadowing of function new [2023-11-21 22:13:38,675 WARN L1590 CHandler]: Possible shadowing of function new [2023-11-21 22:13:38,676 WARN L1590 CHandler]: Possible shadowing of function new [2023-11-21 22:13:38,676 WARN L1590 CHandler]: Possible shadowing of function new [2023-11-21 22:13:38,700 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:13:38,801 INFO L206 MainTranslator]: Completed translation [2023-11-21 22:13:38,802 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:13:38 WrapperNode [2023-11-21 22:13:38,802 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:13:38,803 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 22:13:38,803 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 22:13:38,804 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 22:13:38,811 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:13:38" (1/1) ... [2023-11-21 22:13:38,838 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:13:38" (1/1) ... [2023-11-21 22:13:38,875 INFO L138 Inliner]: procedures = 284, calls = 56, calls flagged for inlining = 13, calls inlined = 13, statements flattened = 258 [2023-11-21 22:13:38,876 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 22:13:38,877 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 22:13:38,877 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 22:13:38,877 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 22:13:38,889 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:13:38" (1/1) ... [2023-11-21 22:13:38,889 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:13:38" (1/1) ... [2023-11-21 22:13:38,896 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:13:38" (1/1) ... [2023-11-21 22:13:38,920 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.boogie.preprocessor has thrown an exception: java.lang.ArrayIndexOutOfBoundsException: Index 0 out of bounds for length 0 at de.uni_freiburg.informatik.ultimate.boogie.preprocessor.memoryslicer.AliasAnalysis.processJoinStatement(AliasAnalysis.java:175) at de.uni_freiburg.informatik.ultimate.boogie.preprocessor.memoryslicer.AliasAnalysis.processStatementList(AliasAnalysis.java:161) at de.uni_freiburg.informatik.ultimate.boogie.preprocessor.memoryslicer.AliasAnalysis.processStatementList(AliasAnalysis.java:157) at de.uni_freiburg.informatik.ultimate.boogie.preprocessor.memoryslicer.AliasAnalysis.processBody(AliasAnalysis.java:128) at de.uni_freiburg.informatik.ultimate.boogie.preprocessor.memoryslicer.AliasAnalysis.aliasAnalysis(AliasAnalysis.java:117) at de.uni_freiburg.informatik.ultimate.boogie.preprocessor.memoryslicer.HeapSplitter.tryToSliceMemory(HeapSplitter.java:116) at de.uni_freiburg.informatik.ultimate.boogie.preprocessor.memoryslicer.HeapSplitter.process(HeapSplitter.java:102) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.DFSTreeWalker.runObserver(DFSTreeWalker.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.runObserver(BaseWalker.java:93) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.run(BaseWalker.java:86) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:166) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:155) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2023-11-21 22:13:38,926 INFO L158 Benchmark]: Toolchain (without parser) took 1355.05ms. Allocated memory was 67.1MB in the beginning and 86.0MB in the end (delta: 18.9MB). Free memory was 30.1MB in the beginning and 54.6MB in the end (delta: -24.5MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 22:13:38,927 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 67.1MB. Free memory was 43.0MB in the beginning and 42.9MB in the end (delta: 98.0kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 22:13:38,928 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1229.16ms. Allocated memory was 67.1MB in the beginning and 86.0MB in the end (delta: 18.9MB). Free memory was 29.9MB in the beginning and 59.9MB in the end (delta: -30.0MB). Peak memory consumption was 11.9MB. Max. memory is 16.1GB. [2023-11-21 22:13:38,929 INFO L158 Benchmark]: Boogie Procedure Inliner took 72.82ms. Allocated memory is still 86.0MB. Free memory was 59.9MB in the beginning and 56.7MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-21 22:13:38,929 INFO L158 Benchmark]: Boogie Preprocessor took 47.42ms. Allocated memory is still 86.0MB. Free memory was 56.7MB in the beginning and 54.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 22:13:38,933 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 67.1MB. Free memory was 43.0MB in the beginning and 42.9MB in the end (delta: 98.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1229.16ms. Allocated memory was 67.1MB in the beginning and 86.0MB in the end (delta: 18.9MB). Free memory was 29.9MB in the beginning and 59.9MB in the end (delta: -30.0MB). Peak memory consumption was 11.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 72.82ms. Allocated memory is still 86.0MB. Free memory was 59.9MB in the beginning and 56.7MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 47.42ms. Allocated memory is still 86.0MB. Free memory was 56.7MB in the beginning and 54.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - ExceptionOrErrorResult: ArrayIndexOutOfBoundsException: Index 0 out of bounds for length 0 de.uni_freiburg.informatik.ultimate.boogie.preprocessor: ArrayIndexOutOfBoundsException: Index 0 out of bounds for length 0: de.uni_freiburg.informatik.ultimate.boogie.preprocessor.memoryslicer.AliasAnalysis.processJoinStatement(AliasAnalysis.java:175) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: ArrayIndexOutOfBoundsException: Index 0 out of bounds for length 0