./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/goblint-regression/13-privatized_46-refine-protected1_true.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_269defb5-953c-4256-a7a0-046417c01a46/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_269defb5-953c-4256-a7a0-046417c01a46/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_269defb5-953c-4256-a7a0-046417c01a46/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_269defb5-953c-4256-a7a0-046417c01a46/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_46-refine-protected1_true.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_269defb5-953c-4256-a7a0-046417c01a46/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_269defb5-953c-4256-a7a0-046417c01a46/bin/uautomizer-verify-BQ2R08f2Ya --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 3d12c74598447410478e04695104608e78da2e67734c0b49554aee2f95de0fed --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 04:39:22,115 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 04:39:22,186 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_269defb5-953c-4256-a7a0-046417c01a46/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-29 04:39:22,191 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 04:39:22,192 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 04:39:22,216 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 04:39:22,217 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 04:39:22,218 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 04:39:22,218 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 04:39:22,219 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 04:39:22,220 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 04:39:22,220 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 04:39:22,221 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 04:39:22,221 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 04:39:22,222 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 04:39:22,223 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 04:39:22,223 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 04:39:22,224 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 04:39:22,224 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 04:39:22,225 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 04:39:22,225 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 04:39:22,229 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 04:39:22,230 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 04:39:22,230 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 04:39:22,230 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 04:39:22,231 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 04:39:22,231 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 04:39:22,232 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 04:39:22,232 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 04:39:22,232 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 04:39:22,233 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 04:39:22,233 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 04:39:22,233 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 04:39:22,234 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 04:39:22,234 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 04:39:22,234 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 04:39:22,234 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 04:39:22,235 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 04:39:22,235 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 04:39:22,235 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 04:39:22,235 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 04:39:22,236 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 04:39:22,236 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_269defb5-953c-4256-a7a0-046417c01a46/bin/uautomizer-verify-BQ2R08f2Ya/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_269defb5-953c-4256-a7a0-046417c01a46/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3d12c74598447410478e04695104608e78da2e67734c0b49554aee2f95de0fed [2023-11-29 04:39:22,465 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 04:39:22,489 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 04:39:22,492 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 04:39:22,493 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 04:39:22,494 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 04:39:22,495 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_269defb5-953c-4256-a7a0-046417c01a46/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/goblint-regression/13-privatized_46-refine-protected1_true.i [2023-11-29 04:39:25,310 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 04:39:25,526 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 04:39:25,527 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_269defb5-953c-4256-a7a0-046417c01a46/sv-benchmarks/c/goblint-regression/13-privatized_46-refine-protected1_true.i [2023-11-29 04:39:25,544 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_269defb5-953c-4256-a7a0-046417c01a46/bin/uautomizer-verify-BQ2R08f2Ya/data/5a4dafbee/e5da96bab4be4b45863d56977af435fb/FLAGa2cb0927d [2023-11-29 04:39:25,559 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_269defb5-953c-4256-a7a0-046417c01a46/bin/uautomizer-verify-BQ2R08f2Ya/data/5a4dafbee/e5da96bab4be4b45863d56977af435fb [2023-11-29 04:39:25,561 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 04:39:25,563 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 04:39:25,564 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 04:39:25,564 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 04:39:25,568 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 04:39:25,569 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 04:39:25" (1/1) ... [2023-11-29 04:39:25,570 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f692bb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:39:25, skipping insertion in model container [2023-11-29 04:39:25,570 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 04:39:25" (1/1) ... [2023-11-29 04:39:25,610 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 04:39:25,739 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_269defb5-953c-4256-a7a0-046417c01a46/sv-benchmarks/c/goblint-regression/13-privatized_46-refine-protected1_true.i[1094,1107] [2023-11-29 04:39:25,873 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 04:39:25,886 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 04:39:25,897 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_269defb5-953c-4256-a7a0-046417c01a46/sv-benchmarks/c/goblint-regression/13-privatized_46-refine-protected1_true.i[1094,1107] [2023-11-29 04:39:25,928 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 04:39:25,962 INFO L206 MainTranslator]: Completed translation [2023-11-29 04:39:25,962 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:39:25 WrapperNode [2023-11-29 04:39:25,962 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 04:39:25,964 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 04:39:25,964 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 04:39:25,964 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 04:39:25,970 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:39:25" (1/1) ... [2023-11-29 04:39:25,983 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:39:25" (1/1) ... [2023-11-29 04:39:26,003 INFO L138 Inliner]: procedures = 163, calls = 23, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 55 [2023-11-29 04:39:26,003 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 04:39:26,004 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 04:39:26,004 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 04:39:26,004 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 04:39:26,013 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:39:25" (1/1) ... [2023-11-29 04:39:26,013 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:39:25" (1/1) ... [2023-11-29 04:39:26,016 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:39:25" (1/1) ... [2023-11-29 04:39:26,028 INFO L175 MemorySlicer]: Split 8 memory accesses to 3 slices as follows [2, 1, 5]. 63 percent of accesses are in the largest equivalence class. The 7 initializations are split as follows [2, 0, 5]. The 1 writes are split as follows [0, 1, 0]. [2023-11-29 04:39:26,028 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:39:25" (1/1) ... [2023-11-29 04:39:26,029 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:39:25" (1/1) ... [2023-11-29 04:39:26,034 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:39:25" (1/1) ... [2023-11-29 04:39:26,036 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:39:25" (1/1) ... [2023-11-29 04:39:26,038 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:39:25" (1/1) ... [2023-11-29 04:39:26,039 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:39:25" (1/1) ... [2023-11-29 04:39:26,042 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 04:39:26,043 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 04:39:26,043 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 04:39:26,043 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 04:39:26,044 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:39:25" (1/1) ... [2023-11-29 04:39:26,050 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 04:39:26,060 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_269defb5-953c-4256-a7a0-046417c01a46/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:39:26,071 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_269defb5-953c-4256-a7a0-046417c01a46/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 04:39:26,075 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_269defb5-953c-4256-a7a0-046417c01a46/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 04:39:26,105 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-29 04:39:26,106 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-29 04:39:26,106 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-29 04:39:26,106 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-29 04:39:26,106 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 04:39:26,107 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-29 04:39:26,107 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-11-29 04:39:26,107 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-11-29 04:39:26,107 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-29 04:39:26,107 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 04:39:26,108 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-29 04:39:26,108 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-29 04:39:26,108 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-29 04:39:26,108 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 04:39:26,108 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 04:39:26,110 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-29 04:39:26,234 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 04:39:26,236 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 04:39:26,360 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 04:39:26,442 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 04:39:26,442 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-29 04:39:26,443 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 04:39:26 BoogieIcfgContainer [2023-11-29 04:39:26,443 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 04:39:26,446 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 04:39:26,446 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 04:39:26,450 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 04:39:26,450 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 04:39:25" (1/3) ... [2023-11-29 04:39:26,451 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f06a1b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 04:39:26, skipping insertion in model container [2023-11-29 04:39:26,451 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:39:25" (2/3) ... [2023-11-29 04:39:26,451 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f06a1b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 04:39:26, skipping insertion in model container [2023-11-29 04:39:26,451 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 04:39:26" (3/3) ... [2023-11-29 04:39:26,453 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_46-refine-protected1_true.i [2023-11-29 04:39:26,462 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-29 04:39:26,472 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 04:39:26,472 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-29 04:39:26,472 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-29 04:39:26,498 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-29 04:39:26,527 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 26 places, 25 transitions, 54 flow [2023-11-29 04:39:26,550 INFO L124 PetriNetUnfolderBase]: 3/24 cut-off events. [2023-11-29 04:39:26,551 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-29 04:39:26,554 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28 conditions, 24 events. 3/24 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 24 event pairs, 0 based on Foata normal form. 0/19 useless extension candidates. Maximal degree in co-relation 22. Up to 2 conditions per place. [2023-11-29 04:39:26,555 INFO L82 GeneralOperation]: Start removeDead. Operand has 26 places, 25 transitions, 54 flow [2023-11-29 04:39:26,557 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 16 places, 12 transitions, 27 flow [2023-11-29 04:39:26,568 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 04:39:26,575 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;@4eb3a84d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 04:39:26,576 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-11-29 04:39:26,583 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-29 04:39:26,583 INFO L124 PetriNetUnfolderBase]: 0/10 cut-off events. [2023-11-29 04:39:26,583 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-29 04:39:26,584 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 04:39:26,584 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:39:26,585 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-29 04:39:26,590 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:39:26,591 INFO L85 PathProgramCache]: Analyzing trace with hash 365322056, now seen corresponding path program 1 times [2023-11-29 04:39:26,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:39:26,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677867480] [2023-11-29 04:39:26,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:39:26,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:39:26,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:39:26,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:39:26,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:39:26,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677867480] [2023-11-29 04:39:26,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1677867480] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:39:26,946 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:39:26,946 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 04:39:26,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928982862] [2023-11-29 04:39:26,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:39:26,958 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 04:39:26,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:39:26,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 04:39:26,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 04:39:26,991 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 25 [2023-11-29 04:39:26,994 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 16 places, 12 transitions, 27 flow. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:39:26,994 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 04:39:26,994 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 25 [2023-11-29 04:39:26,995 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 04:39:27,036 INFO L124 PetriNetUnfolderBase]: 3/14 cut-off events. [2023-11-29 04:39:27,036 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-29 04:39:27,036 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31 conditions, 14 events. 3/14 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 11 event pairs, 2 based on Foata normal form. 2/16 useless extension candidates. Maximal degree in co-relation 22. Up to 9 conditions per place. [2023-11-29 04:39:27,037 INFO L140 encePairwiseOnDemand]: 21/25 looper letters, 0 selfloop transitions, 0 changer transitions 8/8 dead transitions. [2023-11-29 04:39:27,038 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 14 places, 8 transitions, 33 flow [2023-11-29 04:39:27,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 04:39:27,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-29 04:39:27,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 29 transitions. [2023-11-29 04:39:27,048 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.29 [2023-11-29 04:39:27,048 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 29 transitions. [2023-11-29 04:39:27,049 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 29 transitions. [2023-11-29 04:39:27,050 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 04:39:27,052 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 29 transitions. [2023-11-29 04:39:27,053 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:39:27,056 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 25.0) internal successors, (125), 5 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:39:27,056 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 25.0) internal successors, (125), 5 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:39:27,058 INFO L175 Difference]: Start difference. First operand has 16 places, 12 transitions, 27 flow. Second operand 4 states and 29 transitions. [2023-11-29 04:39:27,059 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 14 places, 8 transitions, 33 flow [2023-11-29 04:39:27,061 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 13 places, 8 transitions, 32 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-29 04:39:27,062 INFO L231 Difference]: Finished difference. Result has 13 places, 0 transitions, 0 flow [2023-11-29 04:39:27,063 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=25, PETRI_DIFFERENCE_MINUEND_FLOW=16, PETRI_DIFFERENCE_MINUEND_PLACES=10, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=7, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=7, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=13, PETRI_TRANSITIONS=0} [2023-11-29 04:39:27,066 INFO L281 CegarLoopForPetriNet]: 16 programPoint places, -3 predicate places. [2023-11-29 04:39:27,066 INFO L495 AbstractCegarLoop]: Abstraction has has 13 places, 0 transitions, 0 flow [2023-11-29 04:39:27,067 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:39:27,069 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2023-11-29 04:39:27,069 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 3 remaining) [2023-11-29 04:39:27,070 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2023-11-29 04:39:27,070 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 04:39:27,070 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-29 04:39:27,075 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-29 04:39:27,076 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 04:39:27,082 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 04:39:27 BasicIcfg [2023-11-29 04:39:27,082 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 04:39:27,083 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 04:39:27,083 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 04:39:27,084 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 04:39:27,084 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 04:39:26" (3/4) ... [2023-11-29 04:39:27,086 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-29 04:39:27,090 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2023-11-29 04:39:27,094 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2023-11-29 04:39:27,095 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2023-11-29 04:39:27,095 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-29 04:39:27,095 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-29 04:39:27,177 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_269defb5-953c-4256-a7a0-046417c01a46/bin/uautomizer-verify-BQ2R08f2Ya/witness.graphml [2023-11-29 04:39:27,178 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_269defb5-953c-4256-a7a0-046417c01a46/bin/uautomizer-verify-BQ2R08f2Ya/witness.yml [2023-11-29 04:39:27,178 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 04:39:27,179 INFO L158 Benchmark]: Toolchain (without parser) took 1615.85ms. Allocated memory was 161.5MB in the beginning and 230.7MB in the end (delta: 69.2MB). Free memory was 126.0MB in the beginning and 179.4MB in the end (delta: -53.3MB). Peak memory consumption was 19.6MB. Max. memory is 16.1GB. [2023-11-29 04:39:27,179 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 161.5MB. Free memory is still 104.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 04:39:27,179 INFO L158 Benchmark]: CACSL2BoogieTranslator took 398.96ms. Allocated memory is still 161.5MB. Free memory was 126.0MB in the beginning and 106.5MB in the end (delta: 19.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-29 04:39:27,180 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.98ms. Allocated memory is still 161.5MB. Free memory was 106.5MB in the beginning and 104.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 04:39:27,180 INFO L158 Benchmark]: Boogie Preprocessor took 38.05ms. Allocated memory is still 161.5MB. Free memory was 104.5MB in the beginning and 102.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 04:39:27,181 INFO L158 Benchmark]: RCFGBuilder took 400.15ms. Allocated memory is still 161.5MB. Free memory was 102.4MB in the beginning and 82.9MB in the end (delta: 19.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-29 04:39:27,181 INFO L158 Benchmark]: TraceAbstraction took 636.64ms. Allocated memory was 161.5MB in the beginning and 230.7MB in the end (delta: 69.2MB). Free memory was 82.6MB in the beginning and 183.6MB in the end (delta: -101.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 04:39:27,182 INFO L158 Benchmark]: Witness Printer took 94.58ms. Allocated memory is still 230.7MB. Free memory was 182.5MB in the beginning and 179.4MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-29 04:39:27,185 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 161.5MB. Free memory is still 104.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 398.96ms. Allocated memory is still 161.5MB. Free memory was 126.0MB in the beginning and 106.5MB in the end (delta: 19.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.98ms. Allocated memory is still 161.5MB. Free memory was 106.5MB in the beginning and 104.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 38.05ms. Allocated memory is still 161.5MB. Free memory was 104.5MB in the beginning and 102.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 400.15ms. Allocated memory is still 161.5MB. Free memory was 102.4MB in the beginning and 82.9MB in the end (delta: 19.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 636.64ms. Allocated memory was 161.5MB in the beginning and 230.7MB in the end (delta: 69.2MB). Free memory was 82.6MB in the beginning and 183.6MB in the end (delta: -101.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 94.58ms. Allocated memory is still 230.7MB. Free memory was 182.5MB in the beginning and 179.4MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 26 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: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 11 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4 mSDsluCounter, 6 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 14 IncrementalHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 4 mSDtfsCounter, 14 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=27occurred in iteration=0, InterpolantAutomatonStates: 4, 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, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 8 NumberOfCodeBlocks, 8 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 20 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-29 04:39:27,205 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_269defb5-953c-4256-a7a0-046417c01a46/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE