./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread/stateful01-1.i --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_855e3d61-3bd5-426e-8a23-40e7aefe10c4/bin/uautomizer-verify-NlZe1sFDwI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_855e3d61-3bd5-426e-8a23-40e7aefe10c4/bin/uautomizer-verify-NlZe1sFDwI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_855e3d61-3bd5-426e-8a23-40e7aefe10c4/bin/uautomizer-verify-NlZe1sFDwI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_855e3d61-3bd5-426e-8a23-40e7aefe10c4/bin/uautomizer-verify-NlZe1sFDwI/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread/stateful01-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_855e3d61-3bd5-426e-8a23-40e7aefe10c4/bin/uautomizer-verify-NlZe1sFDwI/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_855e3d61-3bd5-426e-8a23-40e7aefe10c4/bin/uautomizer-verify-NlZe1sFDwI --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 4f746010868b331b940ee2293ff3d78b9aa516b26fde95d84f76493b23741d03 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 21:57:41,688 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 21:57:41,810 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_855e3d61-3bd5-426e-8a23-40e7aefe10c4/bin/uautomizer-verify-NlZe1sFDwI/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-24 21:57:41,827 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 21:57:41,828 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 21:57:41,867 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 21:57:41,868 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 21:57:41,869 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 21:57:41,871 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-24 21:57:41,878 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-24 21:57:41,879 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 21:57:41,879 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 21:57:41,880 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 21:57:41,882 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 21:57:41,882 INFO L153 SettingsManager]: * Use SBE=true [2023-11-24 21:57:41,883 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 21:57:41,883 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 21:57:41,884 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 21:57:41,884 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 21:57:41,885 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 21:57:41,885 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 21:57:41,886 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 21:57:41,886 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 21:57:41,887 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 21:57:41,887 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 21:57:41,887 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 21:57:41,888 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 21:57:41,889 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 21:57:41,889 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-24 21:57:41,890 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-24 21:57:41,891 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 21:57:41,891 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-24 21:57:41,891 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 21:57:41,892 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 21:57:41,892 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 21:57:41,892 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-24 21:57:41,892 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 21:57:41,893 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 21:57:41,893 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-24 21:57:41,893 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 21:57:41,893 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-24 21:57:41,894 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 21:57:41,894 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_855e3d61-3bd5-426e-8a23-40e7aefe10c4/bin/uautomizer-verify-NlZe1sFDwI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_855e3d61-3bd5-426e-8a23-40e7aefe10c4/bin/uautomizer-verify-NlZe1sFDwI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4f746010868b331b940ee2293ff3d78b9aa516b26fde95d84f76493b23741d03 [2023-11-24 21:57:42,144 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 21:57:42,173 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 21:57:42,176 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 21:57:42,177 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 21:57:42,178 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 21:57:42,179 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_855e3d61-3bd5-426e-8a23-40e7aefe10c4/bin/uautomizer-verify-NlZe1sFDwI/../../sv-benchmarks/c/pthread/stateful01-1.i [2023-11-24 21:57:45,432 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 21:57:45,774 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 21:57:45,775 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_855e3d61-3bd5-426e-8a23-40e7aefe10c4/sv-benchmarks/c/pthread/stateful01-1.i [2023-11-24 21:57:45,790 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_855e3d61-3bd5-426e-8a23-40e7aefe10c4/bin/uautomizer-verify-NlZe1sFDwI/data/d5b1c39e2/1daf3c51de0f4dbbb881ff4e7289b75e/FLAGf9db05734 [2023-11-24 21:57:45,803 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_855e3d61-3bd5-426e-8a23-40e7aefe10c4/bin/uautomizer-verify-NlZe1sFDwI/data/d5b1c39e2/1daf3c51de0f4dbbb881ff4e7289b75e [2023-11-24 21:57:45,806 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 21:57:45,807 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 21:57:45,809 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 21:57:45,809 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 21:57:45,815 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 21:57:45,816 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 09:57:45" (1/1) ... [2023-11-24 21:57:45,817 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f617d77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:57:45, skipping insertion in model container [2023-11-24 21:57:45,817 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 09:57:45" (1/1) ... [2023-11-24 21:57:45,867 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 21:57:46,331 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_855e3d61-3bd5-426e-8a23-40e7aefe10c4/sv-benchmarks/c/pthread/stateful01-1.i[30826,30839] [2023-11-24 21:57:46,335 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 21:57:46,354 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 21:57:46,425 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_855e3d61-3bd5-426e-8a23-40e7aefe10c4/sv-benchmarks/c/pthread/stateful01-1.i[30826,30839] [2023-11-24 21:57:46,433 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 21:57:46,486 INFO L206 MainTranslator]: Completed translation [2023-11-24 21:57:46,486 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:57:46 WrapperNode [2023-11-24 21:57:46,486 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 21:57:46,488 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 21:57:46,488 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 21:57:46,488 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 21:57:46,497 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:57:46" (1/1) ... [2023-11-24 21:57:46,518 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:57:46" (1/1) ... [2023-11-24 21:57:46,554 INFO L138 Inliner]: procedures = 169, calls = 38, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 62 [2023-11-24 21:57:46,555 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 21:57:46,556 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 21:57:46,556 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 21:57:46,556 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 21:57:46,568 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:57:46" (1/1) ... [2023-11-24 21:57:46,569 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:57:46" (1/1) ... [2023-11-24 21:57:46,572 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:57:46" (1/1) ... [2023-11-24 21:57:46,590 INFO L175 MemorySlicer]: Split 16 memory accesses to 5 slices as follows [2, 2, 2, 5, 5]. 31 percent of accesses are in the largest equivalence class. The 12 initializations are split as follows [2, 0, 0, 5, 5]. The 2 writes are split as follows [0, 1, 1, 0, 0]. [2023-11-24 21:57:46,590 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:57:46" (1/1) ... [2023-11-24 21:57:46,590 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:57:46" (1/1) ... [2023-11-24 21:57:46,600 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:57:46" (1/1) ... [2023-11-24 21:57:46,602 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:57:46" (1/1) ... [2023-11-24 21:57:46,607 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:57:46" (1/1) ... [2023-11-24 21:57:46,609 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:57:46" (1/1) ... [2023-11-24 21:57:46,612 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 21:57:46,616 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 21:57:46,616 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 21:57:46,616 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 21:57:46,617 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:57:46" (1/1) ... [2023-11-24 21:57:46,624 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-24 21:57:46,640 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_855e3d61-3bd5-426e-8a23-40e7aefe10c4/bin/uautomizer-verify-NlZe1sFDwI/z3 [2023-11-24 21:57:46,655 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_855e3d61-3bd5-426e-8a23-40e7aefe10c4/bin/uautomizer-verify-NlZe1sFDwI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-24 21:57:46,657 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_855e3d61-3bd5-426e-8a23-40e7aefe10c4/bin/uautomizer-verify-NlZe1sFDwI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-24 21:57:46,689 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-24 21:57:46,689 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-24 21:57:46,689 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-24 21:57:46,689 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-24 21:57:46,690 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-11-24 21:57:46,690 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-24 21:57:46,690 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-24 21:57:46,690 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-24 21:57:46,691 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-24 21:57:46,691 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-24 21:57:46,691 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-24 21:57:46,691 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-24 21:57:46,691 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-24 21:57:46,692 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-11-24 21:57:46,692 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-24 21:57:46,692 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 21:57:46,692 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-24 21:57:46,693 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-24 21:57:46,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-24 21:57:46,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-24 21:57:46,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-24 21:57:46,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-24 21:57:46,694 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-11-24 21:57:46,694 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-24 21:57:46,694 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 21:57:46,694 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 21:57:46,696 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-24 21:57:46,885 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 21:57:46,887 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 21:57:47,118 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 21:57:47,324 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 21:57:47,329 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-24 21:57:47,330 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 09:57:47 BoogieIcfgContainer [2023-11-24 21:57:47,330 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 21:57:47,334 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-24 21:57:47,334 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-24 21:57:47,338 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-24 21:57:47,338 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 09:57:45" (1/3) ... [2023-11-24 21:57:47,339 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5aa5b0e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 09:57:47, skipping insertion in model container [2023-11-24 21:57:47,339 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:57:46" (2/3) ... [2023-11-24 21:57:47,341 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5aa5b0e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 09:57:47, skipping insertion in model container [2023-11-24 21:57:47,341 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 09:57:47" (3/3) ... [2023-11-24 21:57:47,342 INFO L112 eAbstractionObserver]: Analyzing ICFG stateful01-1.i [2023-11-24 21:57:47,351 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-24 21:57:47,360 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-24 21:57:47,360 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-24 21:57:47,360 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-24 21:57:47,406 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-24 21:57:47,442 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 40 places, 34 transitions, 82 flow [2023-11-24 21:57:47,474 INFO L124 PetriNetUnfolderBase]: 1/32 cut-off events. [2023-11-24 21:57:47,474 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-24 21:57:47,476 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41 conditions, 32 events. 1/32 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 27 event pairs, 0 based on Foata normal form. 0/30 useless extension candidates. Maximal degree in co-relation 18. Up to 2 conditions per place. [2023-11-24 21:57:47,477 INFO L82 GeneralOperation]: Start removeDead. Operand has 40 places, 34 transitions, 82 flow [2023-11-24 21:57:47,480 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 36 places, 29 transitions, 70 flow [2023-11-24 21:57:47,491 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-24 21:57:47,499 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@778d7cac, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 21:57:47,499 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-11-24 21:57:47,514 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-24 21:57:47,514 INFO L124 PetriNetUnfolderBase]: 0/28 cut-off events. [2023-11-24 21:57:47,515 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-24 21:57:47,515 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-24 21:57:47,516 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 21:57:47,516 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-24 21:57:47,522 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:57:47,522 INFO L85 PathProgramCache]: Analyzing trace with hash -933147106, now seen corresponding path program 1 times [2023-11-24 21:57:47,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 21:57:47,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725053167] [2023-11-24 21:57:47,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:57:47,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 21:57:47,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 21:57:47,820 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-24 21:57:47,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 21:57:47,925 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-24 21:57:47,927 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-24 21:57:47,929 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2023-11-24 21:57:47,931 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2023-11-24 21:57:47,931 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2023-11-24 21:57:47,932 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-24 21:57:47,933 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-24 21:57:47,940 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-24 21:57:47,940 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-24 21:57:48,000 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre13 could not be translated [2023-11-24 21:57:48,002 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre15 could not be translated [2023-11-24 21:57:48,003 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem17 could not be translated [2023-11-24 21:57:48,011 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem18 could not be translated [2023-11-24 21:57:48,022 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.11 09:57:48 BasicIcfg [2023-11-24 21:57:48,022 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-24 21:57:48,023 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-24 21:57:48,025 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-24 21:57:48,025 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-24 21:57:48,026 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 09:57:47" (3/4) ... [2023-11-24 21:57:48,027 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-24 21:57:48,059 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre13 could not be translated [2023-11-24 21:57:48,061 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre15 could not be translated [2023-11-24 21:57:48,065 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem17 could not be translated [2023-11-24 21:57:48,068 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem18 could not be translated [2023-11-24 21:57:48,116 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_855e3d61-3bd5-426e-8a23-40e7aefe10c4/bin/uautomizer-verify-NlZe1sFDwI/witness.graphml [2023-11-24 21:57:48,116 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-24 21:57:48,117 INFO L158 Benchmark]: Toolchain (without parser) took 2309.63ms. Allocated memory was 151.0MB in the beginning and 207.6MB in the end (delta: 56.6MB). Free memory was 103.9MB in the beginning and 120.9MB in the end (delta: -17.0MB). Peak memory consumption was 42.2MB. Max. memory is 16.1GB. [2023-11-24 21:57:48,125 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 151.0MB. Free memory is still 96.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 21:57:48,129 INFO L158 Benchmark]: CACSL2BoogieTranslator took 677.91ms. Allocated memory is still 151.0MB. Free memory was 103.5MB in the beginning and 83.5MB in the end (delta: 20.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-24 21:57:48,130 INFO L158 Benchmark]: Boogie Procedure Inliner took 67.58ms. Allocated memory is still 151.0MB. Free memory was 83.0MB in the beginning and 81.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 21:57:48,133 INFO L158 Benchmark]: Boogie Preprocessor took 57.11ms. Allocated memory is still 151.0MB. Free memory was 81.4MB in the beginning and 78.8MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 21:57:48,134 INFO L158 Benchmark]: RCFGBuilder took 715.05ms. Allocated memory was 151.0MB in the beginning and 207.6MB in the end (delta: 56.6MB). Free memory was 78.8MB in the beginning and 163.9MB in the end (delta: -85.1MB). Peak memory consumption was 27.5MB. Max. memory is 16.1GB. [2023-11-24 21:57:48,134 INFO L158 Benchmark]: TraceAbstraction took 688.40ms. Allocated memory is still 207.6MB. Free memory was 162.8MB in the beginning and 127.2MB in the end (delta: 35.7MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2023-11-24 21:57:48,135 INFO L158 Benchmark]: Witness Printer took 92.98ms. Allocated memory is still 207.6MB. Free memory was 127.2MB in the beginning and 120.9MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-24 21:57:48,138 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 151.0MB. Free memory is still 96.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 677.91ms. Allocated memory is still 151.0MB. Free memory was 103.5MB in the beginning and 83.5MB in the end (delta: 20.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 67.58ms. Allocated memory is still 151.0MB. Free memory was 83.0MB in the beginning and 81.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 57.11ms. Allocated memory is still 151.0MB. Free memory was 81.4MB in the beginning and 78.8MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 715.05ms. Allocated memory was 151.0MB in the beginning and 207.6MB in the end (delta: 56.6MB). Free memory was 78.8MB in the beginning and 163.9MB in the end (delta: -85.1MB). Peak memory consumption was 27.5MB. Max. memory is 16.1GB. * TraceAbstraction took 688.40ms. Allocated memory is still 207.6MB. Free memory was 162.8MB in the beginning and 127.2MB in the end (delta: 35.7MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. * Witness Printer took 92.98ms. Allocated memory is still 207.6MB. Free memory was 127.2MB in the beginning and 120.9MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre13 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre15 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem17 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem18 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre13 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre15 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem17 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem18 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 727]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L692] 0 pthread_mutex_t ma, mb; [L692] 0 pthread_mutex_t ma, mb; [L692] 0 pthread_mutex_t ma, mb; [L692] 0 pthread_mutex_t ma, mb; [L692] 0 pthread_mutex_t ma, mb; [L692] 0 pthread_mutex_t ma, mb; [L692] 0 pthread_mutex_t ma, mb; [L692] 0 pthread_mutex_t ma, mb; [L692] 0 pthread_mutex_t ma, mb; [L692] 0 pthread_mutex_t ma, mb; [L692] 0 pthread_mutex_t ma, mb; [L692] 0 pthread_mutex_t ma, mb; [L693] 0 int data1, data2; [L716] 0 pthread_t t1, t2; [L719] 0 data1 = 10 [L720] 0 data2 = 10 [L721] FCALL, FORK 0 pthread_create(&t1, 0, thread1, 0) VAL [arg={0:0}, data1=10, data2=10, ma={3:0}, mb={4:0}, t1={5:0}, t2={6:0}] [L697] 1 data1++ VAL [arg={0:0}, arg={0:0}, data1=11, data2=10, ma={3:0}, mb={4:0}] [L700] 1 data2++ VAL [arg={0:0}, arg={0:0}, data1=11, data2=11, ma={3:0}, mb={4:0}] [L702] 1 return 0; [L722] FCALL, FORK 0 pthread_create(&t2, 0, thread2, 0) VAL [\result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data1=11, data2=11, ma={3:0}, mb={4:0}, t1={5:0}, t2={6:0}] [L723] 0 \read(t1) VAL [\result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data1=11, data2=11, ma={3:0}, mb={4:0}] [L723] FCALL, JOIN 1 pthread_join(t1, 0) VAL [\result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data1=11, data2=11, ma={3:0}, mb={4:0}, t1={5:0}, t2={6:0}] [L724] 0 \read(t2) VAL [\result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data1=11, data2=11, ma={3:0}, mb={4:0}] [L707] 2 data1+=5 VAL [\result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data1=16, data2=11, ma={3:0}, mb={4:0}] [L710] 2 data2-=6 VAL [\result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data1=16, data2=5, ma={3:0}, mb={4:0}] [L712] 2 return 0; [L724] FCALL, JOIN 2 pthread_join(t2, 0) VAL [\result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data1=16, data2=5, ma={3:0}, mb={4:0}, t1={5:0}, t2={6:0}] [L725] COND TRUE 0 data1==16 && data2==5 VAL [\result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data1=16, data2=5, ma={3:0}, mb={4:0}, t1={5:0}, t2={6:0}] [L727] 0 reach_error() VAL [\result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data1=16, data2=5, ma={3:0}, mb={4:0}, t1={5:0}, t2={6:0}] - UnprovableResult [Line: 722]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 721]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 56 locations, 3 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=70occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 29 NumberOfCodeBlocks, 29 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2023-11-24 21:57:48,161 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_855e3d61-3bd5-426e-8a23-40e7aefe10c4/bin/uautomizer-verify-NlZe1sFDwI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE