./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/goblint-regression/13-privatized_33-traces-v-matters_true.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1945df68-c1e2-46fb-b97f-53238e5e77fd/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1945df68-c1e2-46fb-b97f-53238e5e77fd/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1945df68-c1e2-46fb-b97f-53238e5e77fd/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1945df68-c1e2-46fb-b97f-53238e5e77fd/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_33-traces-v-matters_true.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1945df68-c1e2-46fb-b97f-53238e5e77fd/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1945df68-c1e2-46fb-b97f-53238e5e77fd/bin/uautomizer-verify-LYvppIcaGC --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 5093baaae269ae8f20fbce19a6dc2a002c438d5951124b2c99d459b145e3e5a5 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-23 23:24:52,810 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 23:24:52,897 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1945df68-c1e2-46fb-b97f-53238e5e77fd/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-23 23:24:52,904 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 23:24:52,904 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 23:24:52,948 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 23:24:52,948 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 23:24:52,948 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 23:24:52,950 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-23 23:24:52,950 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-23 23:24:52,951 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-23 23:24:52,951 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-23 23:24:52,952 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 23:24:52,952 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 23:24:52,953 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 23:24:52,953 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 23:24:52,953 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-23 23:24:52,953 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-23 23:24:52,953 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-23 23:24:52,954 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-23 23:24:52,954 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 23:24:52,954 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-23 23:24:52,954 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-23 23:24:52,954 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-23 23:24:52,954 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-23 23:24:52,954 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 23:24:52,954 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-23 23:24:52,954 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 23:24:52,954 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-23 23:24:52,954 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 23:24:52,955 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 23:24:52,955 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 23:24:52,955 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:24:52,955 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 23:24:52,955 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 23:24:52,956 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 23:24:52,956 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 23:24:52,956 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:24:52,956 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 23:24:52,956 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-23 23:24:52,956 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-23 23:24:52,956 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-23 23:24:52,956 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-23 23:24:52,956 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-23 23:24:52,957 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-23 23:24:52,957 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-23 23:24:52,957 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-23 23:24:52,957 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-23 23:24:52,957 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_1945df68-c1e2-46fb-b97f-53238e5e77fd/bin/uautomizer-verify-LYvppIcaGC 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 -> 5093baaae269ae8f20fbce19a6dc2a002c438d5951124b2c99d459b145e3e5a5 [2024-11-23 23:24:53,295 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 23:24:53,308 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 23:24:53,314 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 23:24:53,316 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 23:24:53,318 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 23:24:53,321 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1945df68-c1e2-46fb-b97f-53238e5e77fd/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/goblint-regression/13-privatized_33-traces-v-matters_true.i [2024-11-23 23:24:56,266 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1945df68-c1e2-46fb-b97f-53238e5e77fd/bin/uautomizer-verify-LYvppIcaGC/data/3ba331682/28d99f54df774d63aa84e10999e6b8e3/FLAGb052386e1 [2024-11-23 23:24:56,674 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 23:24:56,680 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1945df68-c1e2-46fb-b97f-53238e5e77fd/sv-benchmarks/c/goblint-regression/13-privatized_33-traces-v-matters_true.i [2024-11-23 23:24:56,701 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1945df68-c1e2-46fb-b97f-53238e5e77fd/bin/uautomizer-verify-LYvppIcaGC/data/3ba331682/28d99f54df774d63aa84e10999e6b8e3/FLAGb052386e1 [2024-11-23 23:24:56,850 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1945df68-c1e2-46fb-b97f-53238e5e77fd/bin/uautomizer-verify-LYvppIcaGC/data/3ba331682/28d99f54df774d63aa84e10999e6b8e3 [2024-11-23 23:24:56,853 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 23:24:56,855 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 23:24:56,858 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 23:24:56,858 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 23:24:56,863 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 23:24:56,864 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:24:56" (1/1) ... [2024-11-23 23:24:56,864 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3500b586 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:24:56, skipping insertion in model container [2024-11-23 23:24:56,865 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:24:56" (1/1) ... [2024-11-23 23:24:56,901 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 23:24:57,103 WARN L250 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_1945df68-c1e2-46fb-b97f-53238e5e77fd/sv-benchmarks/c/goblint-regression/13-privatized_33-traces-v-matters_true.i[1093,1106] [2024-11-23 23:24:57,342 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 23:24:57,372 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 23:24:57,385 WARN L250 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_1945df68-c1e2-46fb-b97f-53238e5e77fd/sv-benchmarks/c/goblint-regression/13-privatized_33-traces-v-matters_true.i[1093,1106] [2024-11-23 23:24:57,435 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 23:24:57,484 INFO L204 MainTranslator]: Completed translation [2024-11-23 23:24:57,485 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:24:57 WrapperNode [2024-11-23 23:24:57,485 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 23:24:57,487 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 23:24:57,487 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 23:24:57,487 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 23:24:57,498 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:24:57" (1/1) ... [2024-11-23 23:24:57,514 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:24:57" (1/1) ... [2024-11-23 23:24:57,544 INFO L138 Inliner]: procedures = 162, calls = 36, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 58 [2024-11-23 23:24:57,545 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 23:24:57,546 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 23:24:57,546 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 23:24:57,546 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 23:24:57,556 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:24:57" (1/1) ... [2024-11-23 23:24:57,557 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:24:57" (1/1) ... [2024-11-23 23:24:57,560 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:24:57" (1/1) ... [2024-11-23 23:24:57,581 INFO L175 MemorySlicer]: Split 17 memory accesses to 4 slices as follows [2, 5, 5, 5]. 29 percent of accesses are in the largest equivalence class. The 17 initializations are split as follows [2, 5, 5, 5]. The 0 writes are split as follows [0, 0, 0, 0]. [2024-11-23 23:24:57,582 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:24:57" (1/1) ... [2024-11-23 23:24:57,582 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:24:57" (1/1) ... [2024-11-23 23:24:57,588 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:24:57" (1/1) ... [2024-11-23 23:24:57,588 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:24:57" (1/1) ... [2024-11-23 23:24:57,594 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:24:57" (1/1) ... [2024-11-23 23:24:57,595 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:24:57" (1/1) ... [2024-11-23 23:24:57,597 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:24:57" (1/1) ... [2024-11-23 23:24:57,598 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 23:24:57,603 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 23:24:57,604 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 23:24:57,604 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 23:24:57,605 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:24:57" (1/1) ... [2024-11-23 23:24:57,612 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:24:57,627 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1945df68-c1e2-46fb-b97f-53238e5e77fd/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:24:57,643 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1945df68-c1e2-46fb-b97f-53238e5e77fd/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-23 23:24:57,647 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1945df68-c1e2-46fb-b97f-53238e5e77fd/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-23 23:24:57,670 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-23 23:24:57,670 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-23 23:24:57,670 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-23 23:24:57,671 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-23 23:24:57,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-23 23:24:57,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-23 23:24:57,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-23 23:24:57,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-23 23:24:57,671 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-23 23:24:57,671 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 23:24:57,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 23:24:57,672 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-23 23:24:57,776 INFO L234 CfgBuilder]: Building ICFG [2024-11-23 23:24:57,778 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 23:24:57,943 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-23 23:24:57,943 INFO L283 CfgBuilder]: Performing block encoding [2024-11-23 23:24:58,101 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 23:24:58,102 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-23 23:24:58,102 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:24:58 BoogieIcfgContainer [2024-11-23 23:24:58,102 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 23:24:58,104 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-23 23:24:58,105 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-23 23:24:58,112 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-23 23:24:58,113 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 11:24:56" (1/3) ... [2024-11-23 23:24:58,114 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5352dba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:24:58, skipping insertion in model container [2024-11-23 23:24:58,114 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:24:57" (2/3) ... [2024-11-23 23:24:58,116 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5352dba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:24:58, skipping insertion in model container [2024-11-23 23:24:58,116 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:24:58" (3/3) ... [2024-11-23 23:24:58,117 INFO L128 eAbstractionObserver]: Analyzing ICFG 13-privatized_33-traces-v-matters_true.i [2024-11-23 23:24:58,134 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-23 23:24:58,136 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 13-privatized_33-traces-v-matters_true.i that has 2 procedures, 30 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2024-11-23 23:24:58,136 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-23 23:24:58,189 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-23 23:24:58,246 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 33 places, 30 transitions, 64 flow [2024-11-23 23:24:58,292 INFO L124 PetriNetUnfolderBase]: 1/29 cut-off events. [2024-11-23 23:24:58,295 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-23 23:24:58,299 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33 conditions, 29 events. 1/29 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 29 event pairs, 0 based on Foata normal form. 0/27 useless extension candidates. Maximal degree in co-relation 27. Up to 2 conditions per place. [2024-11-23 23:24:58,300 INFO L82 GeneralOperation]: Start removeDead. Operand has 33 places, 30 transitions, 64 flow [2024-11-23 23:24:58,303 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 30 places, 26 transitions, 55 flow [2024-11-23 23:24:58,316 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-23 23:24:58,337 INFO L333 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, 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;@c861d61, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 23:24:58,337 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-23 23:24:58,351 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-23 23:24:58,351 INFO L124 PetriNetUnfolderBase]: 0/23 cut-off events. [2024-11-23 23:24:58,351 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-23 23:24:58,351 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-23 23:24:58,352 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:24:58,352 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-23 23:24:58,358 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:24:58,358 INFO L85 PathProgramCache]: Analyzing trace with hash 1244197641, now seen corresponding path program 1 times [2024-11-23 23:24:58,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:24:58,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651886538] [2024-11-23 23:24:58,368 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:24:58,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:24:58,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:24:58,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:24:58,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:24:58,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1651886538] [2024-11-23 23:24:58,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1651886538] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:24:58,781 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:24:58,781 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 23:24:58,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323501963] [2024-11-23 23:24:58,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:24:58,790 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 23:24:58,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:24:58,842 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 23:24:58,843 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 23:24:58,854 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 30 [2024-11-23 23:24:58,858 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 26 transitions, 55 flow. Second operand has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 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) [2024-11-23 23:24:58,860 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 23:24:58,860 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 30 [2024-11-23 23:24:58,861 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 23:24:59,132 INFO L124 PetriNetUnfolderBase]: 74/227 cut-off events. [2024-11-23 23:24:59,132 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-23 23:24:59,133 INFO L83 FinitePrefix]: Finished finitePrefix Result has 415 conditions, 227 events. 74/227 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1026 event pairs, 34 based on Foata normal form. 15/240 useless extension candidates. Maximal degree in co-relation 406. Up to 114 conditions per place. [2024-11-23 23:24:59,135 INFO L140 encePairwiseOnDemand]: 26/30 looper letters, 20 selfloop transitions, 2 changer transitions 20/50 dead transitions. [2024-11-23 23:24:59,136 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 50 transitions, 187 flow [2024-11-23 23:24:59,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 23:24:59,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-23 23:24:59,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 89 transitions. [2024-11-23 23:24:59,155 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5933333333333334 [2024-11-23 23:24:59,159 INFO L175 Difference]: Start difference. First operand has 30 places, 26 transitions, 55 flow. Second operand 5 states and 89 transitions. [2024-11-23 23:24:59,160 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 50 transitions, 187 flow [2024-11-23 23:24:59,166 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 50 transitions, 186 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-23 23:24:59,171 INFO L231 Difference]: Finished difference. Result has 36 places, 26 transitions, 66 flow [2024-11-23 23:24:59,177 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=54, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=66, PETRI_PLACES=36, PETRI_TRANSITIONS=26} [2024-11-23 23:24:59,185 INFO L279 CegarLoopForPetriNet]: 30 programPoint places, 6 predicate places. [2024-11-23 23:24:59,185 INFO L471 AbstractCegarLoop]: Abstraction has has 36 places, 26 transitions, 66 flow [2024-11-23 23:24:59,186 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 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) [2024-11-23 23:24:59,186 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-23 23:24:59,186 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:24:59,186 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-23 23:24:59,187 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-23 23:24:59,187 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:24:59,188 INFO L85 PathProgramCache]: Analyzing trace with hash -1051383896, now seen corresponding path program 1 times [2024-11-23 23:24:59,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:24:59,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148642023] [2024-11-23 23:24:59,188 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:24:59,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:24:59,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:24:59,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:24:59,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:24:59,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [148642023] [2024-11-23 23:24:59,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [148642023] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:24:59,559 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:24:59,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:24:59,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427696115] [2024-11-23 23:24:59,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:24:59,561 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 23:24:59,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:24:59,563 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 23:24:59,563 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-23 23:24:59,563 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 30 [2024-11-23 23:24:59,564 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 26 transitions, 66 flow. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 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) [2024-11-23 23:24:59,564 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 23:24:59,565 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 30 [2024-11-23 23:24:59,565 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 23:24:59,664 INFO L124 PetriNetUnfolderBase]: 15/69 cut-off events. [2024-11-23 23:24:59,665 INFO L125 PetriNetUnfolderBase]: For 9/9 co-relation queries the response was YES. [2024-11-23 23:24:59,669 INFO L83 FinitePrefix]: Finished finitePrefix Result has 143 conditions, 69 events. 15/69 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 142 event pairs, 5 based on Foata normal form. 5/72 useless extension candidates. Maximal degree in co-relation 131. Up to 29 conditions per place. [2024-11-23 23:24:59,669 INFO L140 encePairwiseOnDemand]: 25/30 looper letters, 14 selfloop transitions, 5 changer transitions 1/29 dead transitions. [2024-11-23 23:24:59,669 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 29 transitions, 114 flow [2024-11-23 23:24:59,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 23:24:59,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-23 23:24:59,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 66 transitions. [2024-11-23 23:24:59,671 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.55 [2024-11-23 23:24:59,671 INFO L175 Difference]: Start difference. First operand has 36 places, 26 transitions, 66 flow. Second operand 4 states and 66 transitions. [2024-11-23 23:24:59,671 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 29 transitions, 114 flow [2024-11-23 23:24:59,672 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 29 transitions, 108 flow, removed 2 selfloop flow, removed 3 redundant places. [2024-11-23 23:24:59,673 INFO L231 Difference]: Finished difference. Result has 34 places, 26 transitions, 70 flow [2024-11-23 23:24:59,673 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=60, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=70, PETRI_PLACES=34, PETRI_TRANSITIONS=26} [2024-11-23 23:24:59,674 INFO L279 CegarLoopForPetriNet]: 30 programPoint places, 4 predicate places. [2024-11-23 23:24:59,675 INFO L471 AbstractCegarLoop]: Abstraction has has 34 places, 26 transitions, 70 flow [2024-11-23 23:24:59,675 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 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) [2024-11-23 23:24:59,676 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-23 23:24:59,676 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:24:59,676 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-23 23:24:59,676 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-23 23:24:59,677 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:24:59,677 INFO L85 PathProgramCache]: Analyzing trace with hash -1846566744, now seen corresponding path program 2 times [2024-11-23 23:24:59,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:24:59,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72624910] [2024-11-23 23:24:59,679 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 23:24:59,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:24:59,715 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-23 23:24:59,716 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 23:24:59,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:24:59,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:24:59,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [72624910] [2024-11-23 23:24:59,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [72624910] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:24:59,892 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:24:59,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 23:24:59,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140853928] [2024-11-23 23:24:59,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:24:59,892 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 23:24:59,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:24:59,893 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 23:24:59,893 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:24:59,893 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 30 [2024-11-23 23:24:59,893 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 26 transitions, 70 flow. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 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) [2024-11-23 23:24:59,893 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 23:24:59,893 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 30 [2024-11-23 23:24:59,894 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 23:24:59,984 INFO L124 PetriNetUnfolderBase]: 9/58 cut-off events. [2024-11-23 23:24:59,985 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-11-23 23:24:59,985 INFO L83 FinitePrefix]: Finished finitePrefix Result has 124 conditions, 58 events. 9/58 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 107 event pairs, 1 based on Foata normal form. 4/60 useless extension candidates. Maximal degree in co-relation 113. Up to 21 conditions per place. [2024-11-23 23:24:59,985 INFO L140 encePairwiseOnDemand]: 25/30 looper letters, 16 selfloop transitions, 5 changer transitions 2/32 dead transitions. [2024-11-23 23:24:59,985 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 32 transitions, 134 flow [2024-11-23 23:24:59,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 23:24:59,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-23 23:24:59,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 69 transitions. [2024-11-23 23:24:59,988 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.575 [2024-11-23 23:24:59,988 INFO L175 Difference]: Start difference. First operand has 34 places, 26 transitions, 70 flow. Second operand 4 states and 69 transitions. [2024-11-23 23:24:59,988 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 32 transitions, 134 flow [2024-11-23 23:24:59,989 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 32 transitions, 127 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-23 23:24:59,990 INFO L231 Difference]: Finished difference. Result has 36 places, 27 transitions, 83 flow [2024-11-23 23:24:59,990 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=65, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=83, PETRI_PLACES=36, PETRI_TRANSITIONS=27} [2024-11-23 23:24:59,994 INFO L279 CegarLoopForPetriNet]: 30 programPoint places, 6 predicate places. [2024-11-23 23:24:59,994 INFO L471 AbstractCegarLoop]: Abstraction has has 36 places, 27 transitions, 83 flow [2024-11-23 23:24:59,995 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 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) [2024-11-23 23:24:59,995 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-23 23:24:59,995 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:24:59,995 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-23 23:24:59,995 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-23 23:24:59,996 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:24:59,996 INFO L85 PathProgramCache]: Analyzing trace with hash -184470131, now seen corresponding path program 1 times [2024-11-23 23:24:59,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:24:59,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054830126] [2024-11-23 23:24:59,996 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:24:59,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:25:00,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:25:00,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:25:00,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:25:00,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054830126] [2024-11-23 23:25:00,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1054830126] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:25:00,290 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:25:00,290 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 23:25:00,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962538458] [2024-11-23 23:25:00,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:25:00,291 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 23:25:00,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:25:00,291 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 23:25:00,292 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-23 23:25:00,292 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 30 [2024-11-23 23:25:00,292 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 27 transitions, 83 flow. Second operand has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 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) [2024-11-23 23:25:00,292 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 23:25:00,292 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 30 [2024-11-23 23:25:00,293 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 23:25:00,336 INFO L124 PetriNetUnfolderBase]: 3/25 cut-off events. [2024-11-23 23:25:00,336 INFO L125 PetriNetUnfolderBase]: For 18/18 co-relation queries the response was YES. [2024-11-23 23:25:00,337 INFO L83 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 25 events. 3/25 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 29 event pairs, 3 based on Foata normal form. 1/24 useless extension candidates. Maximal degree in co-relation 48. Up to 10 conditions per place. [2024-11-23 23:25:00,337 INFO L140 encePairwiseOnDemand]: 27/30 looper letters, 0 selfloop transitions, 0 changer transitions 17/17 dead transitions. [2024-11-23 23:25:00,337 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 17 transitions, 82 flow [2024-11-23 23:25:00,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 23:25:00,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-23 23:25:00,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 58 transitions. [2024-11-23 23:25:00,338 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.48333333333333334 [2024-11-23 23:25:00,339 INFO L175 Difference]: Start difference. First operand has 36 places, 27 transitions, 83 flow. Second operand 4 states and 58 transitions. [2024-11-23 23:25:00,339 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 17 transitions, 82 flow [2024-11-23 23:25:00,339 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 17 transitions, 76 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-23 23:25:00,340 INFO L231 Difference]: Finished difference. Result has 25 places, 0 transitions, 0 flow [2024-11-23 23:25:00,340 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=43, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=25, PETRI_TRANSITIONS=0} [2024-11-23 23:25:00,341 INFO L279 CegarLoopForPetriNet]: 30 programPoint places, -5 predicate places. [2024-11-23 23:25:00,341 INFO L471 AbstractCegarLoop]: Abstraction has has 25 places, 0 transitions, 0 flow [2024-11-23 23:25:00,342 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 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) [2024-11-23 23:25:00,344 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2024-11-23 23:25:00,345 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2024-11-23 23:25:00,345 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-23 23:25:00,346 INFO L422 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2024-11-23 23:25:00,351 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-23 23:25:00,351 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-23 23:25:00,361 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 11:25:00 BasicIcfg [2024-11-23 23:25:00,361 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-23 23:25:00,362 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-23 23:25:00,362 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-23 23:25:00,362 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-23 23:25:00,364 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:24:58" (3/4) ... [2024-11-23 23:25:00,366 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-23 23:25:00,371 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2024-11-23 23:25:00,377 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 35 nodes and edges [2024-11-23 23:25:00,377 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2024-11-23 23:25:00,377 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-23 23:25:00,378 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-23 23:25:00,469 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1945df68-c1e2-46fb-b97f-53238e5e77fd/bin/uautomizer-verify-LYvppIcaGC/witness.graphml [2024-11-23 23:25:00,469 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1945df68-c1e2-46fb-b97f-53238e5e77fd/bin/uautomizer-verify-LYvppIcaGC/witness.yml [2024-11-23 23:25:00,469 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-23 23:25:00,472 INFO L158 Benchmark]: Toolchain (without parser) took 3615.19ms. Allocated memory was 117.4MB in the beginning and 335.5MB in the end (delta: 218.1MB). Free memory was 93.9MB in the beginning and 271.5MB in the end (delta: -177.6MB). Peak memory consumption was 40.4MB. Max. memory is 16.1GB. [2024-11-23 23:25:00,473 INFO L158 Benchmark]: CDTParser took 0.49ms. Allocated memory is still 142.6MB. Free memory is still 79.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 23:25:00,473 INFO L158 Benchmark]: CACSL2BoogieTranslator took 628.89ms. Allocated memory is still 117.4MB. Free memory was 93.6MB in the beginning and 73.6MB in the end (delta: 20.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-23 23:25:00,474 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.19ms. Allocated memory is still 117.4MB. Free memory was 73.6MB in the beginning and 72.2MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 23:25:00,474 INFO L158 Benchmark]: Boogie Preprocessor took 56.94ms. Allocated memory is still 117.4MB. Free memory was 71.9MB in the beginning and 70.4MB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-23 23:25:00,474 INFO L158 Benchmark]: RCFGBuilder took 498.90ms. Allocated memory is still 117.4MB. Free memory was 70.4MB in the beginning and 44.1MB in the end (delta: 26.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-23 23:25:00,474 INFO L158 Benchmark]: TraceAbstraction took 2256.46ms. Allocated memory was 117.4MB in the beginning and 335.5MB in the end (delta: 218.1MB). Free memory was 43.6MB in the beginning and 275.8MB in the end (delta: -232.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 23:25:00,475 INFO L158 Benchmark]: Witness Printer took 107.52ms. Allocated memory is still 335.5MB. Free memory was 275.8MB in the beginning and 271.5MB in the end (delta: 4.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-23 23:25:00,478 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.49ms. Allocated memory is still 142.6MB. Free memory is still 79.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 628.89ms. Allocated memory is still 117.4MB. Free memory was 93.6MB in the beginning and 73.6MB in the end (delta: 20.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 58.19ms. Allocated memory is still 117.4MB. Free memory was 73.6MB in the beginning and 72.2MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 56.94ms. Allocated memory is still 117.4MB. Free memory was 71.9MB in the beginning and 70.4MB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 498.90ms. Allocated memory is still 117.4MB. Free memory was 70.4MB in the beginning and 44.1MB in the end (delta: 26.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 2256.46ms. Allocated memory was 117.4MB in the beginning and 335.5MB in the end (delta: 218.1MB). Free memory was 43.6MB in the beginning and 275.8MB in the end (delta: -232.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 107.52ms. Allocated memory is still 335.5MB. Free memory was 275.8MB in the beginning and 271.5MB in the end (delta: 4.3MB). Peak memory consumption was 8.4MB. 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 - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 45 locations, 2 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: 2.1s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 64 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 64 mSDsluCounter, 3 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1 mSDsCounter, 21 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 165 IncrementalHoareTripleChecker+Invalid, 186 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 21 mSolverCounterUnsat, 2 mSDtfsCounter, 165 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 19 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=83occurred in iteration=3, InterpolantAutomatonStates: 17, 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, 0.1s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 70 NumberOfCodeBlocks, 70 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 66 ConstructedInterpolants, 0 QuantifiedInterpolants, 340 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-23 23:25:00,501 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1945df68-c1e2-46fb-b97f-53238e5e77fd/bin/uautomizer-verify-LYvppIcaGC/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 Result: TRUE